Abstract
Background
Homeopathic medicines are used by patients with cancer, often alongside conventional treatment. Cancer treatments can cause considerable morbidity and one of the reasons patients use homeopathic medicines is to help with adverse effects.
Objectives
Evaluate effectiveness and safety of homeopathic medicines used to prevent or treat adverse effects of cancer treatments.
Search methods
The following were searched up to November 2008: Cochrane PaPaS Trials Register; Cochrane Central Register of Controlled Trials (CENTRAL); MEDLINE; EMBASE; CINAHL; BNI; CancerLIT; AMED; CISCOM; Hom‐Inform; SIGLE; National Research Register; Zetoc; www.controlled‐trials.com; http://clinicaltrials.gov; Liga Medicorum Homeopathica Internationalis (LMHI, Liga) conference proceedings; reference lists of relevant studies were checked; and homeopathic manufacturers, leading researchers and practitioners were contacted.
Selection criteria
Randomised controlled trials (RCTs) of homeopathic medicines in participants with a clinical or histological diagnosis of cancer where the intervention was aimed at preventing or treating symptoms associated with cancer treatments. All age groups, and all stages of disease were included.
Data collection and analysis
Two review authors independently assessed studies for inclusion and two review authors extracted data. Three review authors independently assessed trial quality using the Delphi List and the Cochrane Collaboration's tool for assessing risk of bias. Disagreements were resolved by consensus. Where available, data were extracted for analysis.
Main results
Eight controlled trials (seven placebo controlled and one trial against an active treatment) with a total of 664 participants met the inclusion criteria. Three studied adverse effects of radiotherapy, three studied adverse effects of chemotherapy and two studied menopausal symptoms associated with breast cancer treatment.
Two studies with low risk of bias demonstrated benefit: one with 254 participants demonstrated superiority of topical calendula over trolamine (a topical agent not containing corticosteroids) for prevention of radiotherapy‐induced dermatitis, and another with 32 participants demonstrated superiority of Traumeel S (a proprietary complex homeopathic medicine) over placebo as a mouthwash for chemotherapy‐induced stomatitis. Two other studies reported positive results, although the risk of bias was unclear, and four further studies reported negative results.
No serious adverse effects or interactions were reported attributable to the homeopathic medicines used.
Authors' conclusions
This review found preliminary data in support of the efficacy of topical calendula for prophylaxis of acute dermatitis during radiotherapy and Traumeel S mouthwash in the treatment of chemotherapy‐induced stomatitis. These trials need replicating. There is no convincing evidence for the efficacy of homeopathic medicines for other adverse effects of cancer treatments. Further research is required.
Plain language summary
Homeopathic medicines for adverse effects of cancer treatments
Homeopathic medicines are used by many patients with cancer, usually alongside conventional treatment. Cancer treatments can cause adverse effects, and one of the reasons patients use homeopathic medicines is to help with these symptoms. This review looked at whether these medicines could help patients with problems caused by cancer treatments. Eight studies with a total of 664 participants were included in this review. Three studied adverse effects of radiotherapy, three studied adverse effects of chemotherapy and two studied menopausal symptoms associated with breast cancer treatment. Two studies with low risk of bias demonstrated benefit: one with 254 participants demonstrated benefits from calendula ointment in the prevention of radiotherapy‐induced dermatitis, and another with 32 participants demonstrated benefits from Traumeel S (a complex homeopathic medicine) over placebo as a mouthwash for chemotherapy‐induced stomatitis. These trials need replicating. Two other studies reported positive results, although the risk of bias was unclear, and four further studies reported negative results. The homeopathic medicines used in all eight studies did not seem to cause any serious adverse effects or interact with conventional treatment. No cancer treatments were modified or stopped because of the homeopathic interventions.
Background
Complementary therapies, including homeopathic medicines, are used by many patients with cancer, usually alongside orthodox treatments. A systematic review of 26 surveys from 13 countries reported that up to 64% of patients with cancer (average 31.4%) used complementary therapies at some stage of their illness (Ernst 1998). Another study found that homeopathy was in the top five most commonly used complementary therapies in seven out of 14 European countries by patients with cancer (Molassiotis 2005). Homeopathic medicines are used by patients with cancer for symptomatic relief and general supportive care, as well as for adverse effects of cancer treatments. The clinical research to date has focused on homeopathic medicines for adverse effects of cancer treatments (Milazzo 2006), although it is important to note that this may not fully represent contemporary clinical practice.
Homeopathy is based on the broad concept of treating like with like, whereby a substance that can cause symptoms in a healthy individual can be used to treat patients presenting with similar symptoms. For instance, the homeopathic medicine, Apis mellifica (made from bees) is used to treat conditions characterised by acute onset, marked swellings and pain relieved by cold applications, similar to the effect of a bee sting. The concept is not exclusive to homeopathy and can be found as early as in the writings of the Hippocratic Corpus (5th century BC) and in Paracelsus (late 15th century AD). It was the German physician, Samuel Hahnemann, (1755 to 1843) who developed this idea systematically and into a medical system, and coined the term homeopathy.
Homeopathic prescribing strategies vary and at least four types can be differentiated. In 'classical' or 'individualised' homeopathy, a single homeopathic medicine is prescribed according to the individual's presentation and history. In 'clinical' homeopathy, the same homeopathic medicine is used for a group of patients with the same clinical condition e.g. Rhus tox for arthritis. In 'complex' homeopathy more than one homeopathic medicine is used in a fixed combination or concurrently for a particular condition. In 'isopathy' the homeopathic medicine is based on the causal agent e.g. grass pollens for hay fever (Linde 1997). Related medical systems which use homeopathic medicines include Homotoxicology which was founded by HH Reckeweg (1905 to 1985) and is based on interpreting disease as an expression of the defensive effort of the organism against pathogenic toxins and detoxification with homeopathic medicines.
Homeopathic medicines are thought to be generally safe, both as regards adverse effects and interactions with other drugs. In a systematic review of adverse effects of homeopathy, the authors concluded that homeopathic medicines in high dilutions (i.e. very dilute), prescribed by trained professionals, are probably safe and unlikely to provoke severe adverse reactions. The main risks are indirect, pertaining to the practitioners, rather than the medicines. There is likely to be under‐reporting of adverse effects. There is also confusion between homeopathic and herbal medicines in the reporting of adverse effects (Dantas 2000). This is particularly pertinent to cancer management as there is an increased awareness that some herbal medicines e.g. St John's Wort may interfere with some chemotherapy agents. The main risks of homeopathy are indirect; including patients rejecting or delaying conventional therapy with its substantial benefits including possible cure.
The most controversial aspect of homeopathy is the use of high dilutions. Homeopathic medicines can be prepared from botanical, zoological, mineral, chemical, microbiological or synthetic materials. The starting point is the Mother Tincture, an alcoholic extract of the original substance. Insoluble substances are initially triturated (ground) with lactose before being suspended in the alcoholic diluent.
The mother tincture is subjected to a process termed potentisation which consists of serial dilution with succussion (a form of vigorous shaking) at each stage of dilution. A decimal (tenfold) dilution is denoted by the letter 'x' after, or 'D' before, the number of dilutions e.g. 3x/D3. A centesimal (hundredfold) dilution is denoted by the letters 'c' or 'cH' after the number of dilutions e.g. 30c/30cH. If a number is used without a letter prefix or suffix, centesimal dilution is generally implied.
Homeopathic medicines can be used in the concentrated form of a mother tincture or low dilution, either ingested (typically a few millilitres per day) or in topical preparations such as creams or ointments. In the concentrated form, they have potential for interactions with other drugs.
Homeopathic medicines can be diluted beyond Avogadro's number (also known as Loschmidt's Constant: the number of atoms or molecules in a mole of substance, which is of the order of 1023), and at this stage the original substance has almost certainly been diluted out. Such dilutions are termed ultramolecular, and 12c or 23x/D23 are unlikely to contain molecules of the starting substance, but the molecular threshold is usually crossed before this dilution, depending factors include initial concentration and molecular weight. The leading current hypothesis to explain the effects of ultramolecular dilutions is the 'Information Theory Hypothesis' which states: "Water, and other polar solvents can, under specific conditions store specific information about substances with which they have previously been in contact and subsequently transmit this information to presensitised biosystems" (Fisher 1998), although this hypothesis has no convincing evidence to support it and does not seem plausible within a modern scientific framework. Despite the inherent implausibility of ultramolecular dilutions and the controversy surrounding their use, this review includes all types of homeopathic medicines because in clinical practice both ultramolecular dilutions and material doses are used for patients with cancer.
The question this review seeks to address is: Are homeopathic medicines effective and safe in the prevention and treatment of adverse effects of cancer treatments? The scope of this review has been kept deliberately broad to include adverse effects of all standard cancer management strategies including radiotherapy, chemotherapy, surgery, biological and hormonal therapies.
Objectives
To evaluate the effectiveness and safety of homoeopathic medicines used to prevent or treat adverse effects associated with cancer treatments.
Methods
Criteria for considering studies for this review
Types of studies
All types of randomised controlled trials (RCTs) undertaken in any setting.
Types of participants
Participants with a clinical or histological diagnosis of any cancer who wanted to prevent or treat adverse effects associated with their cancer treatments.
Participants of all ages, at any stage of disease, were included.
This review included studies where the intervention was aimed at preventing or treating symptoms related to cancer treatments. Some symptoms (e.g. fatigue), can be related to either the disease, its management, or both, making a clear distinction impossible. Any study where symptoms could at least be partially attributed to cancer treatments were included in this review.
Types of interventions
Any use of homoeopathic medicines versus placebo or active comparator or routine care or no treatment.
Homeopathy (also spelt homoeopathy) was defined, for the purpose of this review, as the use of homeopathic medicines prepared in accordance with officially recognised homeopathic pharmacopoeias. Where there was doubt about the classification of the medicine, we contacted authors or the product manufactures for confirmation. Any homeopathic prescribing strategy was included.
Types of outcome measures
The following outcomes were considered:
Any subjective or objective outcome measures aimed at assessing adverse effects of cancer treatments. These included quality of life and global scores if these were used to assess adverse effects. As not enough is known about the possible duration of effects, the review included short and long term outcome measures.
Reports of adverse effects of homeopathy.
Reports of adverse interactions of homeopathic medicines with cancer treatments.
Modification or cessation of cancer treatments.
Search methods for identification of studies
We aimed to identify all potentially relevant studies, published and unpublished, irrespective of language.
Electronic searches
For the identification of studies included or considered for this review, detailed search strategies were developed for each database searched. These were based on the search strategy developed for MEDLINE by the review authors and the Trials Search Coordinator of the PaPaS Review Group using a combination of controlled vocabulary and free text terms and revised appropriately for each database (see Appendix 1).
Databases searched:
Cochrane Pain, Palliative & Supportive Care Trials Register, searched on 19 November 2008.
The Cochrane Central Register of Controlled Trials (CENTRAL) Issue 4 2008, searched on 19 November 2008.
MEDLINE 1966 to search date, searched on 19 November 2008.
EMBASE 1980 to search date, searched on 19 November 2008.
CINAHL 1982 to search date, searched on 24 November 2008.
BNI 1985 to search date, searched on 1 December 2008.
CancerLIT 1975 to search date, searched on 2 December 2008
AMED 1985 to search date, searched on 26 November 2008
CISCOM 1991 to search date. This database was unavailable when we came to do the search (Complementary and Alternative Medicine database produced by the Research Council for Complementary Medicine).
Hom‐Inform 1966 to search date, searched on 2 December 2008 (the homeopathy ‐ specific database of the Glasgow Homeopathic Hospital).
SIGLE 1976 to 2003, searched on 16 January 2009.
National Research Register 1998 to search date, searched on 15 December 2007. This has been discontinued and archived.
Zetoc 1993 to search date, searched on 1 December 2008.
www.controlled‐trials.com searched on 1 December 2008.
http://clinicaltrials.gov searched on 1 December 2008.
Searching other resources
Unpublished studies
We attempted to contact homeopathic manufacturers and leading researchers and practitioners who were known to have expertise in using homeopathic medicines for patients with cancer.
Handsearching
The Liga Medicorum Homeopathic Internationalis (LMHI, Liga) conference proceedings from 1970 to 2008 were hand searched by one review author (SK). We were unable to obtain proceedings of the years 1970, 1977, 1980, 1981, 1989, 1994, 1998, 2006 and 2007. The reference lists of all relevant studies were checked.
Foreign language studies
The search attempted to identify all relevant studies irrespective of language. The relevant sections of studies not in English were translated where necessary.
Data collection and analysis
Selection of studies
Abstracts of identified studies were read by two review authors (SB, SK) independently and full copies obtained if there was uncertainty as to whether the studies met the inclusion criteria. Foreign language studies were translated into English where necessary. Studies were assessed by two review authors (SB, SK) using a standard eligibility form. Further information was obtained from the manufacturer of one of the potential studies to establish whether the intervention met the inclusion criteria (Pommier 2004). Disagreement on the inclusion or exclusion of studies were discussed by four review authors (SB, MC, PF, SK) until consensus was reached.
Data extraction and management
Data collection
Two review authors (MC, SK) independently extracted data on the following:
participants: numbers randomised, age, sex, type of cancer, type of cancer treatment;
intervention: homeopathic medicines ‐ name, potency, frequency, duration, type of homeopathic prescribing strategy;
outcome measures: outcome measures assessing adverse effects as reported;
results: relevant trial outcome data from each study;
dropouts;
study withdrawals;
reports of adverse effects of homeopathy;
reports of adverse interactions of homeopathic medicines with cancer treatments;
modification of cessation of cancer treatments.
For studies using individualised homeopathy, the following additional aspects were considered:
experience of treating homeopath(s);
level of individualisation of homeopathic medicine choice (unrestricted/partial);
ability to change homeopathic medicine choice (unrestricted/partial/not possible); and
appropriateness of outcome assessment from a homeopathic perspective (i.e. sufficient duration of follow‐up and outcome measures used) (Bell 2003).
Information is reported in the 'Characteristics of included studies' table.
Data analysis
Where available, data were extracted for presentation by one review author (MC), and independently checked by a second review author (SK), however, no pooling of data was possible. The principal analysis was by narrative review.
Assessment of risk of bias in included studies
The quality of the studies was assessed by three review authors independently (SB, MC, SK) using the Delphi List (Verhagen 1998) and the Cochrane Collaboration's tool for assessing risk of bias (Higgins 2008). Disagreements were resolved by discussion.
The Delphi List has nine criteria for looking at the quality of RCTs:
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Treatment allocation (two criteria):
Was a method of randomisation performed?
Was the treatment allocation concealed?
Were the groups similar at baseline regarding the most important prognostic indicators?
Were the eligibility criteria specified?
Was the outcome assessor blinded?
Was the care provider blinded?
Was the patient blinded?
Were point estimates and measures of variability presented for the primary outcome measures?
Did the analysis include an intention to treat analysis?
Each of the questions were answered 'Yes/No/Don't know', and explanatory notes added where necessary (see Table 1).
1. Quality assessment using the Dephi List.
Study ID ________ |
Was a method of randomisation performed? __________________ |
Was the treatment allocation concealed? ____________________ |
Were the groups similar at baseline? _________________ |
Were eligibility criteria specified? _________ |
Was the outcome assessor blinded? _________________ |
Was the care provider blinded? _______________ |
Was the patient blinded? _________________ |
Were the point estimates and measures of variability presented for the primary outcome measure? _________________ |
Did the analysis include an intention to treat (ITT) analysis? _______________ |
Balzarini 2000 |
Yes | Yes | Unclear | Yes | Yes | Yes | Yes | No | No |
Method not described | "On opening the envelopes containing the randomisation code we discovered that 29 patients had been administered the verum and 32 the placebo" | Introduction specifies dose of radiotherapy used, although there is no reporting of baseline characteristics. All women had a quadrantectomy and axillary surgery | Reporting could be more specific, see quote from paper under treatment allocation | Reporting could be more specific, see quote from paper under treatment allocation | Reporting could be more specific, see quote from paper under treatment allocation | Means reported, but standard deviations only reported for some outcomes | Five dropouts described, but not included in analysis | ||
Bourgois 1984 |
Yes | Don't know | Yes | Yes | Don't know | Don’t know | Yes | Yes | No |
Method not described | Allocation concealment implied. Quote from the statistical section of the paper "Before opening the code the examiner has given his opinion on the number of Arnica and placebo" | Subjects were randomly recruited from an open study of 60 white, middle aged women suffering from breast cancer, and the paper states: "The populations are homogeneous" | Described as "double blind", but details are limited; one outcome was assessed by the patient; also see quote under allocation concealment | Described as "double blind", but details are limited | Described as "double blind", but details are limited. "The vials were similar and all labelled 'Arnica' implying patient blinding | There is evidence of selection and attrition bias in the report | |||
Daub 2005 |
Yes | Yes | Yes | Yes | Don’t know | Don’t know | Don’t know | Yes | No |
Randomised list completed centrally by the statistician | Randomised list completed centrally by the statistician | No placebo suppositories were available | No placebo suppositories were available | No placebo suppositories were available | Ten dropouts described, but not included in the analysis. Data from all relevant patients were reported | ||||
Jacobs 2005 |
Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Computer‐generated random numbers, known only to the homeopathic pharmacist | Code not broken until after initial data analysis was completed | ||||||||
Kulkarni 1988 |
Yes | Don’t know | Don’t know | No | Don’t know | Don’t know | Don’t know | No | Yes |
Method not described | Insufficient detail in the report | Insufficient detail in the report | Trial described as "randomised double study" but no details on blinding | Trial described as "randomised double study" but no details on blinding | Trial described as "randomised double study" but no details on blinding | There were no withdrawals, so ITT happened by default | |||
Oberbaum 2001 |
Yes | Yes | Don’t know | Yes | Yes | Yes | Yes | Yes | No |
Software program RANCODE version 3.0 in blocks of 2 (from lead author), controlled by the manufacturer of Traumeel S | The randomisation code was revealed on completion of the study | No details of chemotherapy administered | No exclusion criteria specified | Variability for primary outcomes can be calculated from data presented | Although stated as ITT, two withdrawals are described but not included in the analysis | ||||
Pommier 2004 |
Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes |
Computer‐generated random allocation lists with block size of six each, stratified for skin type | The allocated agents were delivered directly to the patients by the pharmacist in similar packaging | Patients were instructed not to use the agent two hours or less before an irradiation session or before the treatment evaluation | Patients were instructed not to use the agent two hours or less before an irradiation session or before the treatment evaluation | Patient blinding was not considered possible because of the differences in texture, colour and smell of the two agents | Stated as ITT, and there was no comment on withdrawals or dropouts; all participants appear to have been included in the analysis | ||||
Thompson 2005 |
Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
A random numbers table was kept by the pharmacy | Quote from the paper: "At no point could investigators foresee assignments and continued to be blinded throughout the trial" |
Studies were described as having a low risk of bias if all the six criteria in the risk of bias table were met.
Studies were described as high quality if all of the nine Delphi criteria were met, and there was a low risk of bias.
Results
Description of studies
The searches identified a total of 11 studies of which eight met the inclusion criteria for this review.
Results of the search
Electronic searches identified a total of seven potential studies (Balzarini 2000; Bourgois 1984; Felisi 1994; Jacobs 2005; Kulkarni 1988; Oberbaum 2001; Thompson 2005). Hand searching identified one additional potential study (Srihari 1995). Two additional potential studies were identified via the internet (Daub 2005; Genre 2003). One potential study was identified by an expert in the field (Pommier 2004).
Included studies
Eight controlled trials (seven placebo controlled and one trial against an active treatment) with a total of 664 participants met the inclusion criteria. Full English papers were available for six studies (Balzarini 2000; Jacobs 2005; Kulkarni 1988; Oberbaum 2001; Pommier 2004; Thompson 2005). One full paper was available in French and translated (Bourgois 1984) and one in German (Daub 2005).
Three studies with a total of 402 participants tested homeopathic medicines for adverse effects of radiotherapy (Balzarini 2000; Kulkarni 1988; Pommier 2004). Two studies with 97 participants tested homeopathic medicines for adverse effects of chemotherapy (Daub 2005; Oberbaum 2001). One study with 29 participants tested a homeopathic medicine for adverse effects of venous cannulation (insertion of a cannula into a blood vessel) in patients receiving chemotherapy (Bourgois 1984). Two studies with a total of 136 participants tested homeopathic medicines for menopausal symptoms due either to oestrogen withdrawal or hormonal therapies as part of the management of breast cancer (Jacobs 2005; Thompson 2005).
Excluded studies
Of the identified studies, three were excluded for the following reasons: one was not described as randomised (Srihari 1995); one was excluded because it was only available in abstract form and the results were not included in the abstract (Genre 2003): the lead author was contacted but not willing to provide us with the results as the data was not published; and one appeared to be an earlier report of the Balzarini 2000 study (Felisi 1994). We were unable to contact either lead author to confirm this.
Risk of bias in included studies
The methodological quality of included studies was assessed using the Delphi List (Verhagen 1998) (details in Table 1); also see the Cochrane Collaboration's tool for assessing risk of bias (Higgins 2008) (details in risk of bias tables and in Figure 1 and Figure 2).
1.
Methodological quality graph: review authors' judgments about each methodological quality item presented as percentages across all included studies.
2.
Methodological quality summary: review authors' judgments about each methodological quality item for each included study.
Four studies had a low risk of bias (Jacobs 2005; Oberbaum 2001; Pommier 2004; Thompson 2005), three studies had an unclear risk of bias (Balzarini 2000; Daub 2005; Kulkarni 1988) and one study had a high risk of bias (Bourgois 1984).
Allocation
All eight included studies were reported as randomised, although the method of randomisation was explicitly described in only three (Jacobs 2005; Pommier 2004; Thompson 2005). Allocation concealment was clearly described in four studies (Jacobs 2005; Oberbaum 2001; Pommier 2004; Thompson 2005), and there were statements suggesting allocation concealment in two other studies (Balzarini 2000; Daub 2005).
Blinding
Blinding of patients, care providers and observers was described in three studies (Jacobs 2005; Oberbaum 2001; Thompson 2005). Two studies included statements that implied blinding of patients and care providers, but this was not explicit (Balzarini 2000; Bourgois 1984). No explicit information on blinding was reported in two studies (Daub 2005; Kulkarni 1988). Two studies were single blind (outcome assessor blinded). In one study it was not possible to blind the participants because of the differences in texture, colour and odour of the two interventions (Pommier 2004), and in the other there was no placebo suppository available (Daub 2005).
Effects of interventions
Eight studies with a total of 664 participants met the inclusion criteria.
Studies on adverse effects of radiotherapy
Three studies with a total of 402 participants tested homeopathic medicines for adverse effects of radiotherapy (Balzarini 2000; Kulkarni 1988; Pommier 2004).
Kulkarni 1988 was a study of homeopathic medicines to prevent adverse reactions of radiotherapy. The study was set in a radiotherapy department in India. Eighty two participants with a range of cancers, including head and neck, thoracic and pelvic, were randomised into either homeopathic Cobaltum 30, homeopathic Causticum 30 or placebo. Outcomes were measured weekly during radiotherapy using an 18 point radiation reaction profile that assessed a wide range of adverse effects. The average grading was calculated in each group at the end of the study. The authors reported "about 30%" reduction in the degree of reactions in both groups taking homeopathic medicines compared with placebo. Data were not available in a suitable form for analysis in this review.
Balzarini 2000 was set in a hospital in Italy. It was a study of homeopathic medicines for skin reactions associated with radiotherapy. Sixty six women with breast cancer who had undergone a quadrantectomy and axillary dissection were randomised to receive either a combination of two homeopathic medicines, Belladonna 7c twice daily and X ray 15c once daily, or placebo. Both groups used a topical medication containing fluocortolone, generally prescribed at the start of radiotherapy. Skin reactions to radiotherapy were assessed by physicians using ordinal scales rating skin colour and heat to touch, and nominal scales rating hyperpigmentation and oedema. Assessments were made weekly during the six week radiotherapy course and at 15 and 30 days after radiotherapy was completed. Total severity during radiotherapy and during recovery were calculated as the sum of all four parameters. The authors reported that there was no significant difference in the total severity of skin reactions during radiotherapy, but a statistically significant reduction in total severity during recovery for the group treated with homeopathy (P = 0.05). A statistical correction for multiple comparisons is reported, but may not have been applied. Extracted data is displayed in 'Data and analyses'.
Pommier 2004 was a study of a homeopathic ointment for the prevention of acute dermatitis during radiotherapy for breast cancer. It was set in a regional cancer centre in France. Two hundred and fifty four women with a diagnosis of non metastatic breast cancer who had been treated with either a lumpectomy or mastectomy, were randomised to receive either calendula ointment or trolamine (a topical agent which does not contain corticosteroids that had been used routinely for many years in their institution). Topical agents were applied twice daily or more until completion of radiotherapy depending on occurrence of dermatitis or pain. It was a single blind trial as the agents were different in texture, colour and smell. The primary outcome measure was the occurrence of acute dermatitis of grade two or higher, assessed weekly by physicians at radiotherapy consultations, according to the Radiation Therapy Oncology Group (RTOG). The authors reported the occurrence of acute dermatitis grade two or higher was significantly lower (41% versus 63% P < 0.001) with the use of calendula than with trolamine. Extracted data is displayed in 'Data and analyses'.
Studies on adverse effects of chemotherapy
Two studies with 97 participants tested homeopathic medicines for adverse effects of chemotherapy (Daub 2005; Oberbaum 2001). One study with 29 participants tested a homeopathic medicine for adverse effects of venous cannulation in patients receiving chemotherapy (Bourgois 1984).
Oberbaum 2001 was a study of homeopathic medicines for the treatment of chemotherapy‐induced stomatitis in participants undergoing stem cell transplantation. The study was set in a childrens' medical centre in Israel. Thirty two participants (mean age 10 years) were randomised to receive Traumeel S (a proprietary complex homeopathic medicine; see details of this in the 'Characteristics of included studies' table) as a mouthwash or placebo on Day 2, alongside a twice daily mouth wash and gentle tooth brushing. Severity of stomatitis was assessed using the WHO five point grading scale for mucositis. Primary comparisons were area under the curve (AUC) and time to first worsening of stomatitis symptoms. The authors reported statistically significant benefits in both comparisons for the group receiving homeopathy. Extracted data is displayed in 'Data and analyses'.
Daub 2005 was a study of homeopathic antiemesis for chemotherapy. It was set in a university hospital women's clinic in Germany. Sixty five women with primary or recurrent breast cancer undergoing chemotherapy were randomised to receive either Vomitusheel S suppository and Gastricumeel oral tablets (each intervention, a combination of six homeopathic medicines, details can be seen in the 'Characteristics of included studies' table, or Sambucus Nigra D3 oral tablets (a homeopathic medicine used as the placebo). For the first day, all participants received standard antiemetics. If nausea or vomiting occurred on subsequent days, participants received either the homeopathic medicines or placebo. If no resolution of symptoms was achieved within two hours, participants were treated with conventional antiemetics. Outcomes were assessed as the percentage of patients requiring additional conventional medication after the first day. The authors reported that 68.2% of patients in the homeopathy group required additional conventional treatment compared with 59.1% in the control group. There was no significant difference between the two groups. Extracted data is displayed in 'Data and analyses'.
Bourgois 1984 was a study of homeopathic medicines to protect venous function in women undergoing intravenous chemotherapy for breast cancer. The study was set in France and women who had reacted positively to homeopathic Arnica in an open study were randomly recruited. Twenty nine women were randomised to receive either Arnica 5c or placebo for three days before and three days after intravenous chemotherapy for two cycles. Outcomes assessed were pain produced by the injection or haematoma(s) (a collection of blood outside the blood vessels), venous tone assessed by the number of haematomas, and venous accessibility assessed by the number of attempts at cannulation (insertion in to the blood vessel) . The authors reported significant improvements from baseline in the treatment group, but there were no statistically significant differences between active and placebo groups. Extracted data is displayed in 'Data and analyses'.
Studies on menopausal symptoms
Two studies with a total of 136 participants tested homeopathic medicines for the treatment of menopausal symptoms associated with breast cancer treatments (Jacobs 2005; Thompson 2005).
Jacobs 2005 was a study of homeopathic medicines for menopausal symptoms in women with breast cancer. The study was set in the USA in a population recruited through oncologists in medical centres. Eighty three women who had been treated for breast cancer were randomised to one of three arms to receive either an individualised single homeopathic medicine, Hyland's Menopause (a proprietary complex homeopathic medicine; see details in the 'Characteristics of included studies' table), or placebo in a double dummy method. The primary outcome measure was the hot flush severity score (frequency times severity) as measured by a one week hot flush diary at entry to the trial and at 1, 2, 3, 6, 9 and 12 months after randomisation. The authors reported that there were no significant differences in the hot flush severity score between the groups. Data was not available in a suitable form for analysis in this review.
Thompson 2005 was a study of homeopathic medicines for symptoms of oestrogen withdrawal in women who had been treated for breast cancer. The study was set in a homeopathic hospital outpatient department in Scotland. Fifty three women experiencing more than three hot flushes per day were randomised to receive either individualised homeopathic medicines or placebo. The primary outcomes were the activity score and profile score using MYMOP (Measure Your Medical Outcomes Profile) a four item patient generated instrument. The authors reported that there were no statistically significant differences between groups, but clinically relevant improvements in symptoms and mood disturbance were seen for both groups in the 16 week study period. Extracted data is displayed in 'Data and analyses'.
Discussion
This review analysed eight studies of homeopathic medicines for the prevention or treatment of adverse effects of chemotherapy, radiotherapy, and menopausal symptoms caused by hormonal therapies or oestrogen withdrawal. Homeopathic medicines were evaluated because despite many available conventional therapies, troublesome symptoms are still commonly experienced and homeopathy is perceived by some patients as a safe, acceptable adjunct to conventional management.
Summary of main results
Included studies
Eight studies with a total of 664 participants met the inclusion criteria: three studies tested homeopathic medicines for adverse effects of radiotherapy; three studies tested homeopathic medicine for adverse effects of chemotherapy; and two studies tested homeopathic medicines for menopausal symptoms due either to oestrogen withdrawal or hormonal therapies as part of the treatment of breast cancer.
One of the three studies on adverse effects of radiotherapy was of high quality and low risk of bias. It demonstrated superiority of a topical calendula preparation over trolamine (a topical agent which does not contain corticosteroids) in preventing acute dermatitis during radiotherapy in 254 women with breast cancer (Pommier 2004). The other two studies reported positive results for skin reactions and other adverse effects of radiotherapy, however, these studies had an unclear risk of bias (Balzarini 2000; Kulkarni 1988).
There were three studies on adverse effects of chemotherapy. One study with 32 participants had a low risk of bias and demonstrated benefit from Traumeel S (a proprietary complex homeopathic medicine) used as a mouth wash in the treatment of chemotherapy‐induced stomatitis (Oberbaum 2001). The remaining two studies were negative, one had an unclear risk of bias (Daub 2005) and the other had a high risk of bias (Bourgois 1984).
The two studies of homeopathic medicines on menopausal symptoms were of high quality and low risk of bias. The primary outcomes in these trials did not provide evidence for the efficacy of homeopathic medicines over placebo (Jacobs 2005; Thompson 2005).
No serious adverse effects that could be attributed to homeopathic medicines or interactions with conventional treatment were reported in the included studies.
No cancer treatments were stopped due to homeopathic interventions and one study showed less frequent interruptions of radiotherapy in the group receiving the homeopathic intervention (Pommier 2004).
The positive studies with low risk of bias in this review used homeopathic medicines with material doses. Calendula has anti‐inflammatory actions when applied topically which may explain any effects seen in this trial. Many of the constituents in Traumeel S also have anti‐inflammatory effects, but whether this mechanism of action operates at these doses is uncertain.
Unpublished and ongoing studies
There are two studies underway on Traumeel S, one a replication of the Oberbaum 2001 study (Sadhev 2004), and one looking at the the safety of Traumeel S for mucositis in head and neck cancer patients undergoing radiation therapy (Krempl 2005).
The Genre 2003 study using Cocculine® (a proprietary complex homeopathic medicine) in the prevention of nausea and vomiting among patients receiving adjuvant chemotherapy for breast cancer is as yet unpublished. There is another study underway using the same homeopathic intervention; a placebo‐controlled evaluation of Cocculine® efficacy in the management of nausea after chemotherapy in breast cancer (Ray‐Coquard 2005). See details of these studies in the 'Characteristics of ongoing studies' table.
Overall completeness and applicability of evidence
This review was based on a wide ranging and comprehensive literature search.
It is difficult to draw firm conclusions because of the paucity of evidence, clinical heterogeneity and lack of repetition of the included trials. We found eight eligible studies which examined a total of 10 interventions. Most studies were small (only one had over 100 participants, Pommier 2004), and only two examined the same treatment for the same condition (individualised homeopathy for menopausal or oestrogen withdrawal symptoms) (Thompson 2005; Jacobs 2005). But even here there is considerable heterogeneity, as both allowed unrestricted individualised homeopathic prescribing resulting in substantial differences in treatments used. In one study (Jacobs 2005), a total of 35 different homeopathic medicines were prescribed, in the other (Thompson 2005), 71. Of the five most frequently prescribed medicines, only two were common to both studies. Furthermore the studies used qualitatively different outcomes: Jacobs 2005 focused on menopausal symptoms, Thompson 2005 used MYMOP as the primary outcome, this is based on change in symptoms nominated by the patient. Further data regarding individualised homeopathy is listed in the 'Characteristics of included studies' table.
Quality of the evidence
The methodological quality of included studies was assessed using the Delphi List (Verhagen 1998) (see Table 1), and the Cochrane Collaboration's tool for assessing risk of bias (Higgins 2008). Three of the eight included studies were of high quality and low risk of bias (Jacobs 2005; Pommier 2004; Thompson 2005) but only one of these studies was positive (Pommier 2004). One further study with 32 participants had a low risk of bias and reported a positive result for a homeopathic mouthwash (Oberbaum 2001). Three studies had an unclear risk of bias; two reported a positive result (Balzarini 2000; Kulkarni 1988) and one reported a negative result (Daub 2005). There was one further negative trial, which had a high risk of bias (Bourgois 1984).
Potential biases in the review process
This review found few studies, and most were small. The populations studied and the interventions tested were heterogeneous. Reporting was poor in a number of the papers.
Agreements and disagreements with other studies or reviews
A previous systematic review looked at RCT's and controlled clinical trials for the efficacy of homeopathic medicines used as a sole or additional therapy in cancer care (Milazzo 2006). It did not include three of the eight RCT's included in this review (Bourgois 1984; Daub 2005; Pommier 2004). The authors of the systematic review reported that there was insufficient evidence to support clinical efficacy of homeopathic therapy in cancer care (Milazzo 2006).
Authors' conclusions
Implications for practice.
Prophylactic use of calendula ointment may be considered as an option for patients undergoing radiotherapy for breast cancer, although this intervention requires further evaluation. Compared with trolamine, it reduced the incidence of acute dermatitis of grade two or above in women undergoing radiotherapy for breast cancer in one clinical trial involving 254 participants. The calendula ointment used in this study was prepared according to the German Homeopathic Pharmacopoeia and so the results may not apply to topical preparations of calendula extracts prepared by different methods.
There is no convincing evidence for the efficacy of other homeopathic medicines for adverse symptoms and skin reactions related to radiotherapy. Two small studies were positive but both had an unclear risk of bias.
Based on a single trial involving 32 participants, one particular homeopathic combination (Traumeel S ‐ a proprietary complex homeopathic medicine) appears to show promise in the treatment of chemotherapy‐induced stomatitis.
High quality trials to date provide no evidence for the efficacy of homeopathic medicines over placebo in women with breast cancer suffering from menopausal symptoms.
No serious adverse effects that could be attributed to homeopathic medicines or interactions with conventional treatment were reported in the included studies. No cancer treatments were modified or stopped because of the homeopathic interventions.
Implications for research.
Further studies are warranted using calendula ointment for acute dermatitis in patients undergoing radiotherapy. It may be worthwhile considering different formulations since 30% of participants reported that the ointment was difficult to apply.
Further independent trials of Traumeel S for cancer treatment associated mucositis are warranted, and one is underway (Sadhev 2004).
Further RCTs of homeopathic medicines for adverse symptoms and skin reactions related to radiotherapy are needed to confirm the results described in this review. Since patients frequently use homeopathic medicines for general supportive care, rather than control of specific symptoms, outcome measures should be broader than those used in some of the included studies, and should differentiate between symptoms as well as using global and quality of life scores. Radiotherapy‐associated fatigue might be considered as a separate outcome, and observation beyond the end of radiotherapy should be included.
In the design of future studies of individualised homeopathy, consideration should be given to the possibility of an interaction between effects attributable to the homeopathic consultation and those of the homeopathic medicine itself.
Feedback
Feedback regarding Pommier article, 26 February 2010
Summary
This comment pertains to the Pommier article included in this review. This article did not involve a homeopathic remedy and yet was included as one of the key studies within this review on homeopathy. Should it not have been excluded from the review for this simple reason? And, if it were excluded, wouldn't the conclusions drawn in the review article be quite different?
Reply
The selection criteria for the intervention was any use of homeopathic medicines prepared in accordance with officially recognised homeopathic pharmacopoeias. Where there was any doubt about the classification of the medicine, we contacted the authors or product manufacturers for clarification. (See 'Methods' under 'Types of interventions').
We contacted the manufacturer of the calendula ointment. 'Further information was obtained from the manufacturer of one of the potential studies to establish whether the intervention met the inclusion criteria (Pommier 2004)'. (See 'Data collection and analysis' under 'Selection of studies').
The manufacturer confirmed that it had been prepared in accordance with the German homeopathic pharmacopoeia (see 'Characteristics of included studies'). Therefore the study met our inclusion criteria.
This has caused some degree of reaction from commentators who mistakenly believe that homeopathic medicines are always highly diluted substances (see 'Background' of review). Homeopathic medicines in material doses and high dilutions are both used in patients with cancer, and we wanted the review to reflect clinical practice.
Contributors
Sosie Kassab (First author), Kate Seers (Cochrane Pain, Palliative and Supportive Care review group Feedback Editor), Michael Hopfenspirger (Feedback).
Feedback submitted, 11 May 2016
Summary
Date of Submission: 11‐May‐2016
Name: Caroline Struthers
Email Address: caroline.struthers@csm.ox.ac.uk
Affiliation: EQUATOR Network
Role: Education and Training Manager
Comment: In view of the recent review and associated publications about homeopathy led by Paul Glaziou, I am worried that this Cochrane Review and any others concluding however cautiously that there may be some benefit in homeopathic treatments, when at least two of the authors of the review have a declared conflict of interest is problematic.
Reply
Author Response: We have reviewed the relevant parts of the review of reviews performed by the National Health and Medical Research Council (NHMRC) of Australia entitled ‘NHMRC Statement on Homeopathy and NHMRC Information Paper ‐ Evidence on the effectiveness of homeopathy for treating health conditions.’ In this review of reviews our review (Kassab 2011) received an AMSTAR score of 9/10 i.e., a high score for internal validity. It is of interest that this review of reviews did not list the RCT by Pommier et al 2004 – the one large trial with a low risk of bias that appeared to show a benefit for topical calendula over trolamine. This trial met our inclusion criteria, but caused some controversy from commentators that did not read our methods or background thoroughly, and mistakenly assumed that all homeopathic medicines by definition must be highly diluted. We discussed this in detail in the background section of our review.
All potential conflict of interests were declared at the time of registration and publication of protocol and review.
Editor Response: We have investigated further the authors’ Declarations of Interest. In Cochrane we have substantially improved our guidance and practice since 2008. Although it can be challenging to historically investigate reviews, there were three issues in the published DoIs that needed clarification. First, there are no declarations from 2 of the 5 authors. We have sought these and state them as: SB: none known and MC: none known.
Second, there is mention of a funding organization ‘ViFAB’. We have investigated this and found that was a publically funded governmental research agency (now defunct). Third, we sought and received reassurance that RvH who was an author on the protocol, ceased any contribution once he had left his hospital role for a commercial role.
Contributors
Feedback Editor Kate Seers, Managing Editor Anna Erskine, and Co‐ordinating Editor Christopher Eccleston.
What's new
Date | Event | Description |
---|---|---|
5 August 2016 | Feedback has been incorporated | See Feedback. |
History
Protocol first published: Issue 3, 2004 Review first published: Issue 2, 2009
Date | Event | Description |
---|---|---|
21 March 2016 | Review declared as stable | See Published notes. |
27 June 2012 | Amended | Contact details updated. |
12 April 2012 | Feedback has been incorporated | Feedback received regarding inclusion of Pommier 2004 article now responded to by author. Please see 'Feedback' section for details. |
Notes
This review has now been stabilised following discussion with the authors and editors. This is a slow‐moving field of research, and we are confident that no potentially relevant studies likely to change the conclusions have been published since this review was last published. If appropriate, we will update the review if new evidence likely to change the conclusions is published, or if standards change substantially to necessitate revisions.
Acknowledgements
Ms Sylvia Bickley and Ms Caroline Struthers for their assistance in developing the search strategies and running the searches. Dr Christian Hasford, Dr Jennifer Lenhart and Prof Francesco Scaravilli for their help in translating papers. Professor Robert Thomas for his oncology opinion. Ms Francis Fairman, Ms Jessica Thomas and Mr Phil Wiffen for their practical help, guidance and support in conducting this review. Knowledge and Research Center for Alternative Medicine (Danish Acronym: ViFAB) for their patience!
Appendices
Appendix 1. MEDLINE search strategy via Ovid
HOMEOPATHY/
homeopath$ or homoeopath$
cadmium sulphate OR radium bromide OR belladonna OR sepia OR nux vomica OR natrum muriaticum OR lachesis OR cocculus
OR/1‐3
exp NEOPLASMS/
cancer$ or neoplasm$
carcino$ or malignan$
tumour$ or tumor$
BONE MARROW TRANSPLANTATION/
bone marrow adj transplant$
bone marrow transplant$
exp STEM CELL TRANSPLANTATION/
stem cell transplant$
stem‐cell transplant$
exp LEUKEMIA/
leukemi$ or leukaemi$
exp LYMPHOMA/
Lymphoma$
(melanoma$ or sarcoma$ or adenosarcoma$ or adenocarcinoma$ or carcinosarcoma$ or chrondosarcoma$ or fibrosarcoma$ or dermatofibrosarcoma$ or neurofibrosarcoma$ or hemangiosarcoma$ or leimyosarcoma$ or liposarcoma$ or lymphangiosarcoma$ or myosarcoma$ or rhabdomyosarcoma$ or myxosarcoma$ or osteosarcoma$ or ((phyllodes or phyllodes) adj (tumour$ or tumor$)))
exp RADIOTHERAPY
(radioth$ or radiat$ or irradiat$ or radiochemo$ or radio‐chemo$ or (x‐ray adj therapy))
CHEMOTHERAPY, ADJUVANT/
chemotherap$
exp TAMOXIFEN
tamoxifen.mp
((hot adj flushe$) or (hot adj flashe$))
QUALITY OF LIFE/
(quality adj life)
OR/5‐28
4 AND 29
Data and analyses
Comparison 1. Homeopathic treatment of skin reactions to radiotherapy.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Total severity of skin reaction during radiotherapy | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected | |
2 Total severity of skin reaction during recovery following radiotherapy | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected | |
3 Prevention of acute dermatitis during radiotherapy | 1 | Peto Odds Ratio (Peto, Fixed, 95% CI) | Totals not selected |
1.1. Analysis.
Comparison 1 Homeopathic treatment of skin reactions to radiotherapy, Outcome 1 Total severity of skin reaction during radiotherapy.
1.2. Analysis.
Comparison 1 Homeopathic treatment of skin reactions to radiotherapy, Outcome 2 Total severity of skin reaction during recovery following radiotherapy.
1.3. Analysis.
Comparison 1 Homeopathic treatment of skin reactions to radiotherapy, Outcome 3 Prevention of acute dermatitis during radiotherapy.
Comparison 2. Homeopathic treatment of chemotherapy induced stomatitis.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Area under curve of stomatitis symptoms | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected | |
2 Time to first worsening of stomatitis symptoms | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected |
2.1. Analysis.
Comparison 2 Homeopathic treatment of chemotherapy induced stomatitis, Outcome 1 Area under curve of stomatitis symptoms.
2.2. Analysis.
Comparison 2 Homeopathic treatment of chemotherapy induced stomatitis, Outcome 2 Time to first worsening of stomatitis symptoms.
Comparison 3. Homeopathic antiemesis for chemotherapy.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Numbers requiring conventional medication | 1 | Peto Odds Ratio (Peto, Fixed, 95% CI) | Totals not selected |
3.1. Analysis.
Comparison 3 Homeopathic antiemesis for chemotherapy, Outcome 1 Numbers requiring conventional medication.
Comparison 4. Homeopathy for oestrogen withdrawal in breast cancer patients.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 MYMOP ADL score | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected | |
2 MYMOP overall profile score | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected |
4.1. Analysis.
Comparison 4 Homeopathy for oestrogen withdrawal in breast cancer patients, Outcome 1 MYMOP ADL score.
4.2. Analysis.
Comparison 4 Homeopathy for oestrogen withdrawal in breast cancer patients, Outcome 2 MYMOP overall profile score.
Comparison 5. Homeopathy for adverse effects of venous cannulation in patients receiving chemotherapy.
Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
---|---|---|---|---|
1 Pain | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected | |
2 Haematomas | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected | |
3 Accessability | 1 | Mean Difference (IV, Fixed, 95% CI) | Totals not selected |
5.1. Analysis.
Comparison 5 Homeopathy for adverse effects of venous cannulation in patients receiving chemotherapy, Outcome 1 Pain.
5.2. Analysis.
Comparison 5 Homeopathy for adverse effects of venous cannulation in patients receiving chemotherapy, Outcome 2 Haematomas.
5.3. Analysis.
Comparison 5 Homeopathy for adverse effects of venous cannulation in patients receiving chemotherapy, Outcome 3 Accessability.
Characteristics of studies
Characteristics of included studies [ordered by study ID]
Balzarini 2000.
Methods | Country: Italy Recruitment: sequential recruitment of participants undergoing radiotherapy Design: prospective randomised double blind (subject and observer blind) placebo controlled trial with two parallel arms Duration of trial:10 weeks (30 days following a six week course of radiotherapy) | |
Participants | 66 women who had undergone conservative surgery for breast cancer and were being treated with radiotherapy Age: mean 52.7 years, range 28.3 to 70 (7.0 in text, presumed error) years | |
Interventions | Prescribing strategy: clinical homeopathy a) homeopathic medicines ‐ Belladonna 7c three granules twice daily and X‐ray 15c three granules once daily b) placebo | |
Outcomes | Primary outcome measures Skin reactions to radiotherapy assessed by physician observers using ordinal and nominal scales as follows: Skin colour: normal 0; pink 1; red / violet 2 Heat to touch: normal 0; faint 1; intense 2 Oedema: absent 0; present 1 Hyperpigmentation: absent 0; present 1 The efficacy of the treatment was assessed by the comparison of these parameters taken individually and by calculating an Index of Total Severity (sum of the scores of the four parameters) weekly during radiotherapy, and during recovery, 15 and 30 days after the end of the radiotherapy | |
Notes |
Reported results Primary outcome measures Total severity during radiotherapy and during recovery were calculated as the sum of all four parameters. The authors reported that there was no significant difference in the total severity of skin reactions during radiotherapy, but a statistically significant reduction in total severity during recovery for the group treated with homeopathy (P = 0.05). A statistical correction for multiple comparisons is reported, but may not have been applied. Adverse reactions One participant dropped out of the study due to what was described as an aggravation of her menopausal symptoms. |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Described as randomised, but the actual method is not described; there is reference to "opening envelopes containing the randomisation code" in the results section of the paper |
Allocation concealment (selection bias) | Low risk | See above |
Blinding (performance bias and detection bias) All outcomes | Low risk | Described as double blind and see comment under sequence generation above |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Five participants were not included in the analysis; reasons for their withdrawal were given, but group allocation was not described |
Selective reporting (reporting bias) | Low risk | All of the outcomes described in the methods were reported. |
Other bias | Unclear risk | Insufficient information to assess whether an important risk of bias exists |
Bourgois 1984.
Methods | Country: France Recruitment: randomly recruited from patients responding positively to Arnica in a previous open trial Design: randomised, patient and outcome assessor blind, placebo controlled trial Duration of trial: two months | |
Participants | 29 women with breast cancer undergoing intravenous chemotherapy Age: 54.41 years with a range of 7.61 years | |
Interventions | Prescribing strategy: clinical homeopathy a) homeopathic Arnica 5c b) placebo Both administered as three granules four times a day for three days before and three days after treatment for two chemotherapy cycles | |
Outcomes | Primary outcome measures 1. Pain produced by injection or haematoma graded by patient on a vertical line between 0 (no pain) and 160 (intense pain) 2. Venous tone assessed by the number of haematomas 3. Venous accessibility graded from one (first attempt easy) to ten (five and more than five attempts) | |
Notes |
Reported results Primary outcome measures The authors reported significant improvements from baseline in the treatment group, but there were no statistically significant differences between active and placebo groups. Adverse reactions None reported Thesis published in French |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Quote (from translation): "In a random manner, 17 patients received Arnica and 12 patients placebo according to the envisaged protocol". No further details reported |
Allocation concealment (selection bias) | Unclear risk | Allocation concealment implied. Quote from the statistical section of the paper "Before opening the code the examiner has given his opinion on the number of Arnica and placebo" |
Blinding (performance bias and detection bias) All outcomes | Unclear risk | Described as "double blind". Quote from the translation "The vials were similar and all labelled 'Arnica". However insufficient information on outcome assessor blinding from the report to be sure |
Incomplete outcome data (attrition bias) All outcomes | High risk | Selective inclusion and exclusion of data from dropouts |
Selective reporting (reporting bias) | Low risk | All of the outcomes described in the methods were reported. |
Other bias | Unclear risk | Insufficient information to assess whether an important risk of bias exists |
Daub 2005.
Methods | Country: Germany Recruitment: University hospital women's clinic Design: prospective randomised placebo controlled trial with two parallel arms Duration of trial: at least three cycles of chemotherapy planned at three weekly intervals | |
Participants | 65 women undergoing chemotherapy for breast cancer Age: 28‐67 years | |
Interventions | Prescribing strategy: homotoxicology
On day 2, if symptomatic (conventional antiemetics were used for the first day)
a) Vomitusheel S ‐ a proprietary complex homeopathic medicine containing Ipecacuanha D2 (1.1 mg), Aesthusea D2 (1.1 mg), Nux vomica D2 (1.1 mg), Apomorphium hydrochloricum D4 (1.65 mg), Colchicum D4 (2.75 mg), Ignatia D4 (3.3 mg) given as a suppository and Gastricumeel ‐ a proprietary complex homeopathic medicine containing Argentum nitricum D6 (30 mg), Acidum arsenicosum D6 (30 mg), Pulsatilla D4 (60 mg), Nux vomica D4 (60 mg), Carbo vegetablis D6 (60 mg), Antimonium crudum D6 (60 mg) given as oral tablets
b) Sambucus nigra D3 oral tablets used as the placebo
If symptoms did not resolve within two hours conventional antiemetics were given The placebo was another homeopathic medicine that the authors chose because "no antiemetic properties had been described" |
|
Outcomes |
Primary outcome measure
Percentage of patients who did not require additional conventional medication for nausea and vomiting related to chemotherapy, the results reported as the percentage of patients who did require additional conventional medication Secondary outcomes measure Intensity of nausea questionnaire Vomiting Quality of Life Side effects |
|
Notes |
Reported results Primary outcome measures 68.2% of patients in the homeopathy group required additional conventional treatment compared with 59.1% in the control group. There was no significant difference between the two groups (p=0.6) Secondary outcome measures There was nothing of significance to report Adverse reactions No mention of adverse effects of homeopathy were reported |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Randomised list completed centrally by the statistician |
Allocation concealment (selection bias) | Low risk | Randomised list completed centrally by the statistician |
Blinding (performance bias and detection bias) All outcomes | Unclear risk | No placebo suppositories were available |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Dropouts were described but were not included in the analysis |
Selective reporting (reporting bias) | Low risk | All of the outcomes described in the methods have been reported |
Other bias | Low risk | The study appears to be free of other sources of bias |
Jacobs 2005.
Methods | Country: USA Recruitment: letters from oncologists in medical centres and posters in the same locations Design: prospective randomised subject, care provider, statistician blind placebo controlled trial with three parallel arms Duration of trial: one year | |
Participants | 83 women with a history of carcinoma in situ or Stage I to III breast cancer who had completed all surgery, chemotherapy and radiotherapy (women taking Tamoxifen were also included) who had hot flushes for at least one month, with an average of at least three hot flushes per day in the week prior to beginning treatment Age: mean 55.5 years | |
Interventions | Prescribing strategy: individualised or complex homeopathy
a) individualised homeopathy ‐ single medicine given once monthly or bimonthly
b) Hyland's Menopause, a proprietary combination homeopathic medicine (Amyl Nitrate 3x, Sanguinaria canadensis 3x and Lachesis 12x) given three times a day
c) placebo
Double dummy method was used so that all groups took two medicines or placebos daily and monthly. For the individualised homeopathy, there was unrestricted remedy choice and unrestricted ability to change remedy. Outcome assessments were appropriate from a homeopathic perspective. All homeopathic practitioners had at least 10 years experience in classical homeopathy. |
|
Outcomes |
Primary outcome measure
Hot flush severity score (frequency times severity of hot flushes from symptom diary) at entry to the study and at 1, 2, 3, 6, 9 and 12 months after randomisation Secondary outcome measures Total number of hot flushes Kupperman Menopausal Index (KMI) SF‐36 (Short Form 36) quality of life score FSH (Follicle Stimulating Hormone) level before and after treatment |
|
Notes |
Reported results Primary outcome measure There was no significant difference found in the primary outcome measure, the hot flush severity score, although there was a positive trend in the single remedy group during the first 3 months of the study (p = 0.1). A statistically significant improvement in general health score in both homeopathy groups (P < 0.05) on the SF‐36 after 1 year was found. There was an attrition rate of 33.7%. The authors performed a subgroup analysis (post hoc) defined by use of tamoxifen. One of these comparisons was reported as statistically highly significant. In the group not receiving Tamoxifen, there was a statistically significant increase in the hot flush severity score in the homeopathic combination group. Secondary outcome measures There were no statistically significant differences between the three groups in the KMI score or in individual symptoms of the KMI score except for an increase in headaches in the group taking the homeopathic combination at 6 and 12 months. The general health score of the SF36 was significantly increased in both homeopathy groups compared with placebo. There were no other significant findings from the secondary outcome measures. Adverse reactions There was an increase in the number and severity of hot flushes in the subgroup not taking Tamoxifen and receiving the proprietary combination (post hoc). |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Computer‐generated random numbers, known only to the homeopathic pharmacist |
Allocation concealment (selection bias) | Low risk | Code not broken until after initial data analysis was completed |
Blinding (performance bias and detection bias) All outcomes | Low risk | Subject, care provider, statistician blind |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Regression analysis performed, and (according to the study flow chart) all patients were analysed. |
Selective reporting (reporting bias) | Low risk | All of the outcomes described in the methods have been reported. |
Other bias | Low risk | The study appears to be free of other sources of bias. |
Kulkarni 1988.
Methods | Country: India Recruitment: participants undergoing a course of radiotherapy treatment at Bombay Hospital radiotherapy department Design: prospective randomised placebo controlled trial with three parallel arms Duration of trial: 43 days (as indicated on sample proforma for collecting outcome data) | |
Participants | 82 participants with head and neck, pelvic or thoracic cancers undergoing a course of radiotherapy treatment Age: not reported | |
Interventions | Prescribing strategy: clinical homeopathy a) homeopathic Cobaltum 30 b) homeopathic Causticum 30 c) placebo Each treatment taken as 3 pills each morning throughout the entire course of radiotherapy. The dilution method of the homeopathic medicines was not stated and we were unable to contact the lead author. | |
Outcomes | Primary outcome measure Radiation reaction profile ‐ a symptom list with 18 items (one blank) each graded 0‐3 On this measure, a total of 0‐5 indicates very minimal reaction, 6‐10 moderate but tolerable reactions, 11 and above severe degree of reaction usually resulting in interruption of the therapy. Scores recorded once weekly during the course of radiotherapy | |
Notes |
Reported results Primary outcome measure Average grading of radiation reactions: placebo 8.5, Cobaltum 4.7, Causticum 5.4 The authors reported "about 30%" overall reduction in the degree of reactions in both groups taking homeopathic medicines compared with placebo Adverse reactions No adverse effects of homeopathic medicines were reported. Modification or cessation of cancer treatments In the conclusion it was stated that "It certainly improves patient's compliance to continue radiation treatments as per the treatment plans". However, there was no data to confirm this statement. |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Quote from paper: "patients were randomly divided into 3 arms". No further details reported |
Allocation concealment (selection bias) | Unclear risk | The method of concealment was not described |
Blinding (performance bias and detection bias) All outcomes | Unclear risk | Trial described as "randomised double study" and placebo is indistinguishable from homeopathy in outward appearance but insufficient information to be sure |
Incomplete outcome data (attrition bias) All outcomes | Low risk | No withdrawals or missing outcome data, so intention to treat analysis by default; all participants appear to have been included in the analysis |
Selective reporting (reporting bias) | Low risk | All the primary outcome measures have been reported in the pre‐specified way |
Other bias | Unclear risk | Insufficient information to assess whether an important risk of bias exists |
Oberbaum 2001.
Methods | Country: Israel Recruitment: consecutive participants who were admitted to Schneider Children’s Medical Center Design: prospective randomised placebo controlled trial with two parallel arms Duration of trial: 20 day treatment protocol; 44 week follow up | |
Participants | 32 participants suffering from malignant diseases who had undergone allogeneic or autologous stem cell transplantation Age: 3 to 25 years Mean age in years (SD) Traumeel S 10.1 (7.0) placebo 9.7 (5.7) Distribution 3‐4 years Traumeel S 3 placebo 5 5‐9 years Traumeel S 6 placebo 3 10‐14 years Traumeel S 2 placebo 3 15‐19 years Traumeel S 3 placebo 3 20‐25 years Traumeel S 1 placebo 1 | |
Interventions | Prescribing strategy: homotoxicology a) Traumeel S ‐ a proprietary complex homeopathic medicine. Each 2.2 ml ampoule contains: Arnica montana D2 (2.2 mg), calendula officianalis D2 (2.2 mg), Achillea millefolium D3 (2.2 mg), Matricharia chamomilla D2 (2.2 mg), Symphytum officinale D6 (2.2 mg), Atropa belladonna D2 (2.2 mg), Aconitum napelus D2 (1.32 mg) , Bellis perenis D2 (1.1 mg), Hypericum perfoliatum D2 (0.66 mg), Echinacea angustifolia D2 (2.2 mg), Echinacea purpurea D2 (2.2 mg), Hammamelis virginica D1 (0.22 mg), Mercurius solubilis D1 (1.1 mg) and Hepar sulphuris D6 (2.2 mg) b) placebo (saline) Both supplied as 2.2 ml ampoules used as a mouthwash for a minimum of 30 seconds, five times per day, alongside standard mouthcare | |
Outcomes |
Primary outcome measure
WHO grading for mucositis ‐ a five point scale (0‐4) used to grade stomatitis.
The two main treatment comparisons, as specified in the protocol, were of the area under the curve (AUC) for stomatitis symptoms, and the time to first worsening of stomatitis symptoms. Secondary outcome measures A subjective scoring system as judged by the participant or parent assessing the degree of pain, dryness and dysphagia. |
|
Notes |
Reported results Primary outcome measure The mean AUC scores were 10.4 in the Traumeel S group and 24.3 in the placebo group (Wilcoxon rank‐sum score, 167.5; expected score, 232.5; P < 0.01). The log‐rank test indicated that a statistically significant difference (chi‐square test, 13.4 with 1 degree of freedom; P < 0.001) between the two groups in the time to worsening of symptoms. In those patients whose symptoms worsened, the median time to worsening was 4.7 days in the Traumeel S group and 4.0 days in the placebo group. Secondary outcome measures The subjective symptom score showed a reduction of all three symptoms in the Traumeel S group compared to placebo. Adverse reactions Two patients (one in the Traumeel S treatment group and one in the placebo group) received a single dose of study drug but then refused further treatment, complaining of nausea. |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Software program RANCODE version 3.0 in blocks of 2 (from lead author), controlled by the manufacturer of Traumeel S |
Allocation concealment (selection bias) | Low risk | The randomisation code was revealed on completion of the study. |
Blinding (performance bias and detection bias) All outcomes | Low risk | The code was kept by the manufacturer, the study coordinator and the statistician, none of whom were involved with any aspect of the treatment of participating patients. |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Two participants (one from the Traumeel S group and one from the placebo group received one dose of the study drug and refused further treatment complaining of nausea; they were not included in the analysis. |
Selective reporting (reporting bias) | Low risk | All the primary outcome measures have been reported in the pre‐specified way. |
Other bias | Low risk | Traumeel S is a proprietary medicine and there are no statements regarding any commercial interests of the authors in the paper. The lead author was contacted regarding any conflict of interest, and stated that neither he nor any of the other authors had any commercial interest in the company producing Traumeel S. |
Pommier 2004.
Methods | Country: France Recruitment: participants undergoing radiotherapy at the regional cancer centre, Centre Leon Berard Design: prospective randomised single blind (outcome assessor blind) randomised controlled trial Duration of trial: until the completion of radiotherapy | |
Participants | 254 women between 18 to 75 years with non metastatic breast cancer treated with either lumpectomy or mastectomy with or without adjuvant post operative chemotherapy or hormonal treatment. Women having concomitant chemotherapy or with bilateral or breast in situ cancer, who were pregnant or allergic to either preparation were excluded Age: mean 55.4 years (range 26.5 to 74.5 years) | |
Interventions | Prescribing strategy: clinical homeopathy a) Calendula extract ointment. An ointment prepared according to the German homeopathic pharmacopoeia, consisting of a soft paraffin extract of fresh Calendula officinalis flowering tops (20% w/w). b) Trolamine topical agent. (Biafine; Genmedix Ltd, France) consisting of purified water, liquid paraffin, ethylene glycol monostearate, stearic acid, propylene glycol, paraffin wax, squalane, avocado oil, trolamine/sodium alginate, triethanolamine, cetyl palmitate, methylparaben (sodium salt), sorbic acid (potassium salt), propylparaben (sodium salt), and fragrance. Topical agents were used at the onset of radiotherapy, twice daily or more depending on occurrence of dermatitis or pain until completion of radiotherapy. No other creams, lotions or gels were allowed | |
Outcomes |
Primary outcome measure
The occurrence of acute dermatitis of grade 2 or higher according to the Radiation Therapy Oncology Group (RTOG). This was assessed once a week during radiotherapy consultations by physicians. Secondary outcome measures Pain assessed on a 10 cm visual analogue scale (VAS) A self assessed satisfaction questionnaire at the end of the study The occurrence, duration and reasons for interruption of radiotherapy or of allocated cream applications were registered Allergic reactions and quantity of the agents used |
|
Notes |
Reported results Primary outcome measure The occurrence of acute dermatitis of grade 2 or higher was 41% (95% CI, 37 to 46) in the calendula group and 63% (95% CI, 59 to 68) in the trolamine group (P < 0.001) Secondary outcomes measures Pain: the mean maximal pain evaluated on the VAS was 1.54 (95%CI, 1.2 to 1.89) in the calendula group and 2.10 (95%CI, 1.72 to 2.48) in the trolamine group (P = 0.03) Adherence to application of creams as evaluated by the physicians: considered good for 84% of patients receiving calendula and 92% of those receiving trolamine (P = 0.047) Allergic‐type reactions: none in the calendula group, four in the trolamine group (pruritis and urticaria). Satisfaction: calendula was considered difficult to apply by 30% of participants (two stopped because of this difficulty) compared to 5% applying trolamine. Satisfaction with regard to prevention of erythema was 69% with calendula and 39% with trolamine, and for pain was 65% with calendula and 46% with trolamine. Body mass index and adjuvant chemotherapy before radiotherapy after lumpectomy were significant prognostic factors for acute dermatitis. Adverse reactions No adverse reactions to calendula were reported Modification or cessation of cancer treatments Treatment interruptions: one in the calendula group for a reason unrelated to radiotherapy and 15 interruptions in the trolamine group, 12 because of skin toxicity, one due to a lymphocoele abscess and two unrelated to radiotherapy. The mean length of treatment interruption in the trolamine group was 10 days (range 2‐22 days). |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Computer‐generated random allocation lists with block size of six each, stratified for skin type |
Allocation concealment (selection bias) | Low risk | The allocated agents were delivered directly to the patients by the pharmacist in similar packaging |
Blinding (performance bias and detection bias) All outcomes | Low risk | Subject blinding was not considered possible because of the differences in texture, colour and smell of the two interventions. The outcome assessors were blinded, and patients were instructed not to use the agent two hours or less before an irradiation session or before the treatment evaluation. The review authors judged that the outcome was unlikely to be influenced by the lack of subject blinding. |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Stated as intention to treat analysis, and there was no comment on withdrawals or dropouts; all participants appear to have been included in the analysis |
Selective reporting (reporting bias) | Low risk | All the primary outcome measures have been reported in the pre‐specified way |
Other bias | Low risk | The study appears to be free of other sources of bias |
Thompson 2005.
Methods | Country: UK Recruitment: women were recruited from the local oncology centre, surgical breast units, and the community through poster advertising Design: prospective randomised placebo controlled trial with two parallel arms Duration of trial: 16 weeks | |
Participants | 53 women who had been treated for breast cancer, who had more than three hot flushes per day, did not have metastatic disease, were not on any other treatment for hot flushes, did not have any severe concurrent illnesses, and who were not undergoing, or about to receive, any adjuvant chemotherapy Age: mean 52.7 years | |
Interventions | Prescribing strategy: individualised homeopathy
a) individualised homeopathy ‐ five consultations and prescriptions in various forms
b) placebo For the individualised homeopathy, there was unrestricted remedy choice and unrestricted ability to change remedy. Outcome assessments were appropriate from a homeopathic perspective. All homeopathic practitioners had at least 10 years experience in classical homeopathy. |
|
Outcomes |
Primary outcome measure
MYMOP ‐ a change of 0.8 was considered to be a clinically relevant change Secondary outcome measures Menopausal Symptom Questionnaire Patient diaries of frequency and severity of hot flushes EORTC QLQ C30 (European Organisation for Research and treatment of Cancer Quality of Life Questionnaire C30) HADS (Hospital Anxiety and Depression Scale) FAQ (Final assessment Questionnaire) GHHOS (Glasgow Homeopathic Hospital Outcome Scale) |
|
Notes |
Reported results Primary outcome Eighty‐five percent (85%) (45/53) of women completed the study. There was no evidence of a difference seen between groups for either MYMOP activity (adjusted difference =‐0.4, 95% confidence interval CI ‐1.0 to 0.2, p = 0.17) or profile scores (adjusted difference = ‐0.4, 95% CI ‐0.9 to 0.1, P = 0.13). Clinically relevant improvements in symptoms and mood disturbance were seen for both groups over the study period. Secondary outcomes There was little to report in the results of the secondary outcome measures. Adverse reactions Adverse effects were reported by approximately one quarter of women in both groups. |
|
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | A random numbers table was kept by the pharmacy |
Allocation concealment (selection bias) | Low risk | Quote from the paper: "At no point could investigators foresee assignments and continued to be blinded throughout the trial" |
Blinding (performance bias and detection bias) All outcomes | Low risk | Subject (outcome assessor) and care provider blind |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Regression analysis performed, and described as intention to treat. |
Selective reporting (reporting bias) | Low risk | All of the outcomes described in the methods have been reported. |
Other bias | Low risk | The study appears to be free of other sources of bias. |
Characteristics of excluded studies [ordered by study ID]
Study | Reason for exclusion |
---|---|
Felisi 1994 | This is a conference report that appears to describe the same study as Balzarini 2000 |
Srihari 1995 | Not described as randomised |
Characteristics of ongoing studies [ordered by study ID]
Genre 2003.
Trial name or title | Randomized, double‐blind study comparing homeopathy (Cocculine®) to placebo in prevention of nausea/vomiting among patients receiving adjuvant chemotherapy for breast cancer |
Methods | Randomised controlled trial |
Participants | 80 participants who were planned to receive adjuvant chemotherapy (six cycles maximum) for breast cancer |
Interventions | a) Cocculine® (a proprietary complex homeopathic medicine) b) placebo Both added to standard antiemetic treatment, and administered the day before and the day of chemotherapy (two tablets x 3/day) |
Outcomes | Nausea/vomiting were evaluated directly by patients for each cycle of chemotherapy (autoevaluation booklet) |
Starting date | January 2002 |
Contact information | Genre D Medical Oncology Department, Université de la Méditerranée, Marseilles, France oncomed@marseille.fnclcc.fr |
Notes |
Krempl 2005.
Trial name or title | A trial of homeopathic medication Traumeel S for the treatment of radiation‐induced mucositis |
Methods | Randomised controlled trial |
Participants | Inclusion criteria:
Head and neck cancer patients post resection of primary tumour with negative or microscopically positive surgical margins
Patients undergoing planned radiation therapy
Age 18 to 99 years
Nonsmokers Exclusion criteria: Head and neck cancer patients post resection of primary tumour with grossly positive surgical margins Patients receiving adjuvant chemotherapy Pediatric patients (age <18) Pregnant women |
Interventions | a) Placebo: Saline b) Traumeel S 1 mL (a proprietary complex homeopathic medicine) c) Traumeel S 2 mL (a proprietary complex homeopathic medicine) d) Traumeel S 3 mL (a proprietary complex homeopathic medicine) |
Outcomes | The specific aim will be to determine the safety of Traumeel S for mucositis in head and neck cancer patients undergoing radiation therapy [Time Frame: 4 years] |
Starting date | October 2005 |
Contact information | Dini Chissoe, BS 405‐271‐5504 geraldine‐chissoe@ouhsc.edu Ingrid Block, RN, MS 405‐271‐8777 ingrid‐block@ouhsc.edu |
Notes |
Ray‐Coquard 2005.
Trial name or title | Placebo‐controlled evaluation of Cocculine® efficacy in the management of nausea after chemotherapy in breast cancer |
Methods | Randomised controlled trial |
Participants | Inclusion criteria:
Women with histologically proven non metastatic breast cancer
No previous chemotherapy
Treatment planning including 6 adjuvant CT courses with the first 3 being necessarily of the FAC50, FEC100 or TAC type
Age > = 18 years
ECOG performance status (PS) <= 2 (WHO scale)
Patient able to read and understand French
Written, voluntary, informed consent Exclusion criteria: Previous treatment with chemotherapy (including neo‐adjuvant chemotherapy for breast cancer) Previous malignancies (except basal cell skin cancer or cervical cancer in situ or any other curatively treated malignancy in complete remission for more than 5 years) Contraindication to corticosteroids or 5‐HT3 receptor antagonists Treatment with Cocculine® or any other anti‐emetic drug in the 15 days before inclusion Pregnant or lactating women Follow‐up impossible for social, geographical, familial or psychological reasons Patients who cannot be contacted by phone |
Interventions | a) Cocculine® (a proprietary complex homeopathic medicine) b) placebo |
Outcomes | Primary outcome measures:
Score of "nausea" calculated using the FLIE questionnaire (Functional Living index for Emesis with 5‐day recall) at the time of the first adjuvant CT course [ Time Frame: The nausea items of FLIE questionnaire are completed by patients on the 6th day of the 1st course.] Secondary outcome measures: Score of "vomiting" and global score of "nausea + vomiting" calculated using the FLIE questionnaire at the time of the 1st, 2nd and 3rd adjuvant CT courses [Time Frame: Nausea and vomiting items of FLIE questionnaire are completed by patients on the 6th day of the 1st, 2nd and 3rd adjuvant CT courses ] Score of "nausea" calculated using the FLIE questionnaire at the time of the 2nd and 3rd adjuvant CT courses [Time Frame: Nausea items of FLIE questionnaire are completed by patients on the 6th day of the 2nd and 3rd adjuvant CT courses] Patient autoevaluation (D1‐D5) of nausea severity using a visual analogue scale and of the frequency of vomiting during the 1st, 2nd and 3rd adjuvant CT courses [Time Frame: Visual analogue scale are completed by patients the 1st five days of the 1st, 2nd and 3rd adjuvant CT courses] Rate of toxic effects (nausea and vomiting) recorded by investigators at the end of each of the 6 CT courses [Time Frame: Recorded by investigators at the end of each of the 6 CT courses] Evaluation of compliance: patient autoevaluation and counting of remaining tablets [Time Frame: Patients register date and hour of tablets taking on a diary. Box remaining tablets will be count at the end of the 6 CT courses.] |
Starting date | September 2005 |
Contact information | PEROL David, MD
+33 478 78 28 79
perold@lyon.fnclcc.fr GIRERD Nathalie + 33 478 78 59 27 girerdch@lyon.fnclcc.fr |
Notes |
Sadhev 2004.
Trial name or title | Traumeel® S in Preventing and Treating Mucositis in Young Patients Undergoing Stem Cell Transplantation |
Methods | Randomised clinical trial |
Participants | Inclusion criteria: Age 3 to 25 years Planned treatment with allogeneic or autologous hematopoietic stem cell transplantation. Conditioning chemotherapy regimen for transplantation must be myeloablative. Source of stem cells from any of the following: bone marrow; placental cord; cytokine‐mobilized peripheral blood. Availability of 1 of the following donor types: HLA‐matched sibling or parent; related donor mismatched for a single HLA locus (class I or II); unrelated marrow or peripheral blood stem cell donor; unrelated umbilical cord blood HLA‐matched or mismatched (class I) donor. No known allergy to Echinacea. Not pregnant or nursing. Fertile patients must use effective contraception. No concurrent oral vancomycin paste. No concurrent oral glutamine supplementation. No other mouth care or oral medications within 30 minutes after administration of study drugs. No other concurrent treatment to prevent mouth sores. |
Interventions | a) Patients receive oral Traumeel® S (a proprietary complex homeopathic medicine) mouth rinse 5 times daily beginning on day ‐1 before transplantation b) Patients receive oral placebo mouth rinse 5 times daily beginning on day ‐1 before transplantation |
Outcomes | Severity and duration of chemotherapy induced (with or without total body irradiation) mucositis |
Starting date | April 2004 |
Contact information | ClinicalTrials.gov identifier: NCT00080873 |
Notes |
Differences between protocol and review
Cochrane assessment of risk of bias.
Where there was doubt about the classification of the medicine, we contacted authors or the product manufactures for confirmation. We did not routinely check the specific pharmacopoeas in the reports where the interventions were clearly homeopathic medicines.
Contributions of authors
Robbert van Haselen (RvH) conceived the idea and with Sosie Kassab (SK) developed the protocol. All authors contributed to the concept and design of the study. The search strategy was developed by SK and the Trials Search Coordinator of the PaPaS Review Group. SK did the handsearching and with Peter Fisher (PF) contacted practitioners and researchers in the field. SK and Saul Berkovitz (SB) reviewed results of the searches and included studies into the review. SB facilitated translations of papers. Disagreement on the inclusion or exclusion of studies were discussed by SB, Mike Cummings (MC), PF and SK. Data was extracted by MC and SK and quality assessed by SB, MC and SK. Authors and manufacturers were contacted by MC, PF and SK for additional information. MC entered data into RevMan. SB, MC, PF and SK interpreted the analysis. MC and SK drafted the final review. SB and PF commented on it critically for intellectual content. All authors finally approved the document for publication.
SK will be responsible for conducting any updates.
Sources of support
Internal sources
Royal London Homoeopathic Hospital, UK.
External sources
Knowledge and Research Center for Alternative Medicine (Danish Acronym: ViFAB), Denmark.
Declarations of interest
Peter Fisher has received fees from homeopathic manufactures for lectures and seminars.
Sosie Kassab is Director of Complementary Cancer Services at the Royal London Homoeopathic Hospital and uses homeopathic medicines for patients with cancer alongside their conventional care.
Robbert van Haselen was Deputy Director of Research at the Royal London Homoeopathic Hospital when an application for funding for this Cochrane Review was made from ViFAB. He had a major input into the development of the protocol which was published in 2004. He left the hospital in 2005 and took up his post as Director of Research for Heel in Germany in 2006 (the company that makes Traumeel S, one of the interventions included in this review). Prior to his leaving, we had run some of the searches and identified some potential studies but had not gone through the process of formally selecting studies for inclusion into the review. He had no input into the selection of included studies, data extraction, quality assessment or interpretation of the analysis. On finally approving the publication, he did not make any recommendations for change to the implications for clinical practice, research or to the conclusions, but commented on it critically for intellectual content.
Edited (no change to conclusions), comment added to review
References
References to studies included in this review
Balzarini 2000 {published data only}
- Balzarini A, Felisi E, Martini A, Conno F. Efficacy of homeopathic treatment of skin reactions during radiotherapy for breast cancer: a randomised, double‐blind clinical trial. British Homeopathic Journal 2000;89(1):8‐12. [DOI] [PubMed] [Google Scholar]
Bourgois 1984 {published data only}
- Bourgois JC. Protection of the venous capital at the perfusees with a long course in breast cancer. Double blind Clinical trial: Arnica with a placebo control [Protection du capital veineux chez les perfusees au long cours dans cancer du sein. Essai clinique en double aveugle: Arnica contro placebo]. Thesis 1984:89.
Daub 2005 {published data only}
- Daub EA, Gerhard I, Bastert G. Homeopathic antiemesis for chemotherapy, a prospective randomised trial [Homoopathische Antiemetika bei Chemotherapie, eine prospektiv, randomisierte Studie]. Geburtshilfe und Frauenheilkunde 2005;60:S157. [Google Scholar]
Jacobs 2005 {published data only}
- Jacobs J, Herman P, Heron K, Olsen S, Vaughters L. Homeopathy for menopausal symptoms in breast cancer survivors: a preliminary randomized controlled trial. Journal of Alternative and Complementary Medicine 2005;11(1):21‐7. [DOI] [PubMed] [Google Scholar]
Kulkarni 1988 {published data only}
- Kulkarni A, Nagarkar BM, Burde GS. Radiation protection by use of homoeopathic medicines. Hahnemann Homoeopath Sand 1988;12:20‐3. [Google Scholar]
Oberbaum 2001 {published data only}
- Oberbaum M, Yaniv I, Ben Gal Y, Stein J, Ben Zvi N, Freedman LS, et al. A randomized, controlled clinical trial of the homeopathic medication TRAUMEEL S in the treatment of chemotherapy‐induced stomatitis in children undergoing stem cell transplantation. Cancer 2001;92(3):684‐90. [DOI] [PubMed] [Google Scholar]
Pommier 2004 {published data only}
- Pommier P, Gomez F, Sunyach MP, D'Hombres A, Carrie C, Montbarbon X. Phase III randomized trial of Calendula officinalis compared with trolamine for the prevention of acute dermatitis during irradiation for breast cancer. Journal of Clinical Oncology 2004;22(8):1447‐53. [DOI] [PubMed] [Google Scholar]
Thompson 2005 {published data only}
- Thompson EA, Montgomery A, Douglas D, Reilly D. A pilot, randomized, double‐blinded, placebo‐controlled trial of individualized homeopathy for symptoms of estrogen withdrawal in breast‐cancer survivors. Journal of Alternative and Complementary Medicine 2005;11(1):13‐20. [DOI] [PubMed] [Google Scholar]
References to studies excluded from this review
Felisi 1994 {published data only}
- Felisi E, Saruggia M, Russo G, Balzarini A. Early cutaneous lesions raised during radiotherapy whilst treating breast cancer: Effectiveness of a homeopathic therapy [Lésions cutanées précoces relevées au cours de radiothérapie misant au traitment du cancer du sein: L'efficacité d'une thérapie homéopathique]. OMHI Congress. 1994.
Srihari 1995 {published data only}
- Srihari U. The Ipecac trial. Proceedings of the 49th Liga Medicorum Homoeopathica Internationalis Congress. New Delhi, 1995; Vol. 1:307‐12.
References to ongoing studies
Genre 2003 {published data only}
- Genre D, Tarpin C, Braud AC, Camerlo J, Protiere C, Eisinger F, et al. Randomized, double‐blind study comparing homeopathy (cocculine) to placebo in prevention of nausea/vomiting among patients receiving adjuvant chemotherapy for breast cancer. Breast Cancer Research and Treatment 2003;82:637. [Google Scholar]
Krempl 2005 {published data only}
- Krempl G. A trial of homeopathic medication Traumeel S for the treatment of radiation‐induced mucositis. http://clinicaltrials.gov/show/NCT00584597 Accessed February 2008.
Ray‐Coquard 2005 {published data only}
- Placebo‐controlled evaluation of Cocculine® efficacy in the management of nausea after chemotherapy in breast cancer. http://clinicaltrials.gov/show/NCT00409071 Accessed February 2008.
Sadhev 2004 {published data only}
- Traumeel® S in preventing and treating mucositis in young patients undergoing stem cell transplantation. http://clinicaltrials.gov/ct2/show/NCT00080873 Accessed February 2008.
Additional references
Bell 2003
- Bell I. Evidence‐based homeopathy: empirical questions and methodological considerations for homeopathic clinical research. American Journal of Homeopathic Medicine 2003;96(1):17‐31. [Google Scholar]
Dantas 2000
- Dantas F, Rampes H. Do homeopathic medicines provoke adverse effects? A systematic review'. British Homeopathic Journal 2000;89(Suppl 1):35‐8. [DOI] [PubMed] [Google Scholar]
Ernst 1998
- Ernst E, Cassileth BR. The prevalence of complementary and alternative medicine in cancer: a systematic review. Cancer 1998;83:777‐82. [DOI] [PubMed] [Google Scholar]
Fisher 1998
- Fisher P. The information medicine hypothesis. In: Shulte J, Endler PC editor(s). Fundamental research in high dilutions. Kluwer Dordrecht, 1998:xi‐xiv. [Google Scholar]
Higgins 2008
- Higgins JPT, Altman DG (editors). Chapter 8: Assessing risk of bias in included studies. In: Higgins JPT, Green S editor(s). Cochrane Handbook for Systematic Reviews of Interventions Version 5.0.0 (updated February 2008). The Cochrane Collaboration, 2008. [Google Scholar]
Linde 1997
- Linde K, Clausius N, Ramirez G, Melchart D, Eitel F, Hedges L, Jonas W. Are the clinical effects of homeopathy placebo effects? A meta‐analysis of placebo controlled trials. Lancet 1997;350:834‐43. [DOI] [PubMed] [Google Scholar]
Milazzo 2006
- Milazzo S, Russell N, Ernst E. Efficacy of homeopathic therapy in cancer treatment. European Journal of Cancer 2006;42(3):282‐9. [DOI] [PubMed] [Google Scholar]
Molassiotis 2005
- Molassiotis A, Fernadez‐Ortega P, Pud D, Ozden G, Scott JA, Panteli V, et al. Use of complementary and alternative medicine in cancer patients: a European survey. Annals of Oncology 2005;16(4):655‐63. [DOI] [PubMed] [Google Scholar]
Verhagen 1998
- Verhagen AP, Vet HCW, Bie RA, Kessels AGH, Boers M, Bouter LM, Knipschild PG. The Delphi List: a criteria list for quality assessment developed by Delphi consensus of randomised clinical trials for conducting systematic reviews. Journal of Clinical Epidemiology 1998;51(12):1235‐41. [DOI] [PubMed] [Google Scholar]