Abstract
Background
Although we have made tremendous medical advances in recent decades in modern antibiotics and supportive therapies, the treatment of sepsis has not experienced such rapid advancement. Xuebijing injection (XBJ) is a Chinese prescription consisting of Carthamus tinctorius, Radix paeoniae rubra, Ligusticum wallichii, Radix salviae miltiorrhizae and Radix angelicae sinensis. Clinical experience suggests that XBJ may provide a solution in the management of sepsis. However, the safety of this treatment is still controversial. This study aims to detect the occurrence of XBJ-related adverse drug reactions (ADRs) among individuals in clinical practice.
Methods
From the clinical application of XBJ in a real-world setting, patients in 93 hospitals using XBJ were monitored between August 2013 and August 2016. There was no limit on the treatment course and dosage. From data obtained in interviews or telephone follow-ups with hospitalized patients, the circumstances of patients’ adverse events (AEs) during the course of drug treatment and during the 7 days after drug withdrawal were recorded and encoded by MedDRA18.0. The likelihood of ADRs was determined by the criteria of the Uppsala Monitoring Centre. Statistical analyses were performed by SAS9.2 software.
Results
In total, 31,913 participants enrolled, and none were lost to follow-up. AEs (suspected ADRs) occurred in 234 participants. ADRs occurred in 96 participants, and the incidence was 0.3%. The ADRs with the top three frequencies were skin pruritus (0.116%), erythra (0.066%) and chest tightness (0.044%). There was no significant relationship between ADRs and solvents (P=0.149), route of administration (P=0.640), unhealthy addiction (P=0.069), allergy (P=0.535), first use of XBJ (P=0.161) or dosage (P=0.743). There was a significant relationship between ADRs and irrigating syringe (P<0.0001) and fluid dripping too quickly (P=0.019).
Conclusions
This large-scale survey of hospitalized patients found that the incidence of ADRs was occasional (0.3%), while most of the ADRs were relatively mild or non-serious. XBJ should be administered rationally and according to its instructions to prevent the occurrence of ADRs.
Keywords: Adverse drug reaction (ADR), hospital intensive monitoring (HIM), real-world study, Xuebijing injection (XBJ)
Introduction
Xuebijing injection (XBJ), an herbal prescription, is widely used in the treatment of sepsis systemic inflammatory response syndrome, multiple organ dysfunction syndrome and sepsis, according to Chinese guidelines (1). It consists of extracts from five Chinese herbs: Flos carthami, Radix paeoniae Rubra, Rhizoma chuanxiong, Radix salviae miltiorrhizae and Radix angelicae sinensis (2). The bioactive roles of XBJ include activating circulation, strengthening and consolidating body resistance, removing blood stasis and clearing away toxins (3).
The use of injections of Chinese materia medica is still controversial. The associated risk is a critical issue, and the challenge is how to ensure the safety and quality of injections for consumers (4). XBJ that has been approved for treating sepsis has been sold on the market all over China since 2004. A comprehensive safety assessment that focuses on adverse events (AEs) and adverse drug reactions (ADRs) should be a necessary prerequisite. According to the components of XBJ, the possible ADRs include allergic shock, skin lesions and cardiovascular system damage. Case reports/case series and resulting ADRs can be searched in medical journals (5,6). While two electronic English databases (PubMed, EMBASE) were searched up to March 2018, none of the studies systematically reported the AEs/ADRs of XBJ.
Hospital intensive monitoring (HIM) is the non-interventional observational study of large samples. It can be used to gather more information about ADRs (7). From the detailed information of monitoring sites, the pooled data are a useful supplement to drug safety and can be used in subsequent analysis. Therefore, a real-world study was conducted to provide reliable data and to fully recognize the ADRs of XBJ.
Methods
Study setup
This study was established in departments of 93 hospitals located in 25 Chinese cities. The study was conducted from August 2013 to August 2016.
Inclusion criteria for participants
Data were collected from all patients regardless of their age, disease, course, interaction and dosage of drug taken, on the condition that they were prescribed and took XBJ.
Data collection
Data were collected from case report forms and an Electronic Data Capture (EDC) data management system, including basic situation, background disease, therapeutic schedule and prescriptions. Patients were followed up by telephone within 7 days after drug withdrawal. During the treatment by XBJ, patients or clinical practitioners were encouraged to report any discomfort or symptoms; these data were recorded by researchers as AEs. The information about AEs contained the types of AEs, severity, risk factors, occurrence time, relief time, coping methods and outcomes. This information was recorded in the AE Daily Card if an AE was detected. AEs and ADRs were coded with the Medical Dictionary for Regulatory Activities (MedDRA) (8).
Criteria for identification of AEs and ADRs
The AEs (suspected ADRs) after XBJ treatment were defined as any type of symptom, disease or syndrome that can have an influence on a patient’s state of health, including any abnormalities from laboratory testing and other examinations during the observation period. ADRs refer to unintended injuries caused by XBJ rather than to the disease process (9).
ADR assessment was performed by global introspection. Seven representatives of the doctors in charge, including six traditional Chinese medicine (TCM) specialists and one ADR specialist with a senior professional post, discussed the causes of AEs (suspected ADRs) and assessed the probability of ADRs. We defined ADRs using three levels: certain, probable/likely, and possible. The causality categories were described by the Uppsala Monitoring Centre.
Statistical analysis
The data were imported into SAS 9.2 (SAS Inc., Tianjin University of Traditional Chinese Medicine version). Descriptive analysis, including numbers and percentages, was performed for every item. Fisher’s exact test was applied in comparisons among several groups. Pearson’s chi-square test or Cochran-Mantel-Haenszel test was used to compare the classified data on correlation analysis.
Results
A total of 31,913 patients from 93 hospitals were enrolled in this study. During the follow-up, no patients had missing values in their records. Characteristics of all patients and their medication use of XBJ are displayed in Tables 1,2.
Table 1. Characteristics of patients from 93 hospitals in China using XBJ.
Characteristics | Value |
---|---|
Sex, n (%) | |
Male | 17,051 (53.43) |
Female | 14,862 (46.57) |
Age (years) | |
Mean ± SD | 57.53±18.25 |
Median (range) | 58.61 (0.01–113.8) |
≤14 (children), n (%) | 137 (0.43) |
15–60 (adult), n (%) | 16,713 (52.37) |
≥60 (elderly), n (%) | 15,063 (47.20) |
Ethnicity, n (%) | |
Han | 31,598 (99.01) |
Minorities | 315 (0.99) |
Smoking, n (%) | |
No | 29,132 (91.29) |
Yes | 2,781 (8.71) |
Drinking, n (%) | |
Yes | 829 (2.60) |
No | 31,084 (97.40) |
Allergy, n (%) | |
Yes | 1,245 (3.90) |
No | 30,668 (96.10) |
Family members’ allergies, n (%) | |
Yes | 13 (0.04) |
No | 29,858 (93.56) |
Unclear | 2,042 (6.40) |
Table 2. Characteristics of patients’ XBJ medication use.
Variables | Number (%) |
---|---|
Use for the first time | |
Yes | 28,627 (89.70) |
No | 914 (2.86) |
Unclear | 2372 (7.43) |
Dosage (one time) | |
<50 mL | 5,603 (17.56) |
50–100 mL | 26,219 (82.16) |
>100 mL | 91 (0.29) |
Medication time (days) | |
Mean ± SD | 6.5±4.55 |
Median | 5.0 |
Range | 1.0–40.0 |
Frequency | |
1 time/day | 20,947 (65.64) |
2–3 times/day | 10,948 (34.31) |
4 times/day | 18 (0.06) |
Solvent | |
0.9% normal saline | 30,187 (94.59) |
Others | 1,726 (5.41) |
Amount of solvents | |
NA | 485 (1.52) |
<100 mL | 387 (1.21) |
100 mL | 24,835 (77.82) |
>100 mL | 5,787 (18.13) |
Administration | |
Intravenous dripping | 31,494 (98.69) |
Others | 419 (1.31) |
Dripping speed | |
<30 drops/min | 1,724 (5.40) |
30–60 drops/min | 21,856 (68.49) |
60–80 drops/min | 7,604 (23.83) |
80–100 drops/min | 455 (1.43) |
>100 drops/min | 87 (0.27) |
Unclear | 187 (0.59) |
While patients had various types of diseases, the majority of their diseases resulted from injuries of the systemic inflammatory response (25.73%). The distribution of diseases among patients using XBJ is displayed in Table 3.
Table 3. Disease distribution of patients using XBJ.
Type of disease | Number (%) |
---|---|
Systemic inflammatory response syndrome (SIRS) | 19,842 (62.18) |
Sepsis | 1,645 (5.15) |
Multiple organ dysfunction syndrome (MODS) | 1,164 (3.65) |
Others | 9,262 (29.02) |
Occurrence of ADRs
Of the 31,913 patients monitored, AEs (suspected ADRs) occurred in 234 cases, with 245 occurrences. Additionally, 138 cases were assessed as unlikely to be related to the XBJ administered and could thus be attributed to other causes. The distribution of ADRs was as follows: certain ADRs (0 cases and 0% incidence), probable/likely ADRs (5 cases and 0.02% incidence), possible ADRs (91 cases and 0.29% incidence), unlikely ADRs (39 cases and 0.12% incidence), conditional/unclassified ADRs (92 cases and 0.29% incidence), and unassessable/unclassifiable AEs (7 cases and 0.02% incidence). Causality categories and descriptions of the relationship between AEs and XBJ are displayed in Table 4. By definition, there were 96 cases of ADRs, including skin pruritus (37 cases), erythra (21 cases), chest tightness (14 cases), fever (10 cases), laboured breathing (10 cases) and so on. The frequency and incidence of related ADRs for patients using XBJ are shown in Table 5.
Table 4. Causality categories and description of the relationship between AEs (suspected ADRs) and XBJ.
Causality categories | Cases | Incidence1 | Percentage (%) |
---|---|---|---|
Certain | 0 | 0 | 0 |
Probable/likely | 5 | 7 | 0.02 |
Possible | 91 | 96 | 0.29 |
Unlikely | 39 | 40 | 0.12 |
Conditional/unclassified | 92 | 95 | 0.29 |
Unassessable/unclassifiable | 7 | 7 | 0.02 |
Total | 234 | 245 | 0.73 |
1, the percentage was calculated by dividing the total number of cases by the number of AE cases for each level.
Table 5. Frequency and incidence of the related ADRs for patients using XBJ.
Feature | Number of times | Incidence2 (%) |
---|---|---|
Skin pruritus | 37 | 0.116 |
Erythra | 21 | 0.066 |
Chest tightness | 14 | 0.044 |
Fever | 10 | 0.031 |
Laboured breathing | 10 | 0.031 |
Erubescence | 7 | 0.022 |
Nausea | 5 | 0.016 |
Shiver | 4 | 0.012 |
Pain in the infusion site | 3 | 0.009 |
Headache | 3 | 0.009 |
Diarrhoea | 3 | 0.009 |
Dizziness | 3 | 0.009 |
Palpitation | 2 | 0.006 |
Anhelation | 2 | 0.006 |
Occult blood | 1 | 0.003 |
Abnormal liver function | 1 | 0.003 |
Joint pain | 1 | 0.003 |
Convulsion | 1 | 0.003 |
Emesis | 1 | 0.003 |
Gastrectasia | 1 | 0.003 |
2, the percentage was calculated by dividing the total number of participants by the total number of cases of ADRs.
Causal analysis
Eleven common potential factors contributing to ADRs were analysed. There were no correlations between ADRs and sex (P=0.278), age (P=0.781), ethnicity (P=0.245), unhealthy addiction (P=0.069), allergy (P=0.535), first use of XBJ (P=0.161), dosage (P=0.743), solvent (P=0.149) or amount of solvent (P=0.592). There were correlations between ADRs and dripping speed (P=0.019)/irrigating syringe (P<0.0001). The causal analysis of ADRs is displayed in Table 6.
Table 6. Causal analysis of ADRs for patients using XBJ.
Elements | ADR | Correlation with ADRs | |
---|---|---|---|
No | Yes3 | ||
Sex | c2=1.18; P=0.278 | ||
Male | 17,005 | 46 (0.27) | |
Female | 14,812 | 50 (0.34) | |
Age (years) | c2=0.49; P=0.781 | ||
≤14 | 137 | 0 (0) | |
15–59 (adult) | 16,656 | 57 (0.34) | |
≥60 (elderly) | 15,024 | 39 (0.26) | |
Ethnicity | Fisher’s exact test P=0.245 | ||
Han | 31,598 | 94 (0.30) | |
Minorities | 315 | 2 (0.63) | |
Unhealthy addiction | CMH test P=0.069 | ||
No | 24,328 | 84 (0.35) | |
Smoking | 2,781 | 7 (0.25) | |
Drinking | 829 | 0 (0.0) | |
Drinking + smoking | 3,975 | 5 (0.13) | |
Allergy | c2 test P=0.535 | ||
No | 28,575 | 87 (0.30) | |
History of allergies | 1,245 | 6 (0.48) | |
History of hypersensitivity disease | 38 | 0 (0.0) | |
Family members’ allergies | 13 | 0 (0.0) | |
Unclear | 2,042 | 3 (0.15) | |
First use of XBJ | c2 test P=0.161 | ||
Yes | 28,627 | 81 (0.28) | |
No | 914 | 3 (0.33) | |
Unclear | 2,372 | 12 (0.51) | |
Dosage (one time) | c2=0.59; P=0.743 | ||
<50 mL | 5,603 | 19 (0.34) | |
50–100 mL | 26,219 | 77 (0.29) | |
>100 mL | 91 | 0 (0.0) | |
Solvent | c2 test; P=0.149 | ||
0.9% NS | 30,187 | 94 (0.31) | |
Others | 1726 | 2 (0.12) | |
Amount of solvents administration | c2=1.91; P=0.592 | ||
NA | 485 | 2 (0.41) | |
<100 mL | 387 | 0 (0.0) | |
100 mL | 24,835 | 79 (0.32) | |
>100 mL | 5,787 | 15 (0.26) | |
Dripping speed | Chi-square test P=0.019 | ||
<30 drops/min | 1,724 | 5 (0.29) | |
30–60 drops/min | 21,856 | 75 (0.34) | |
60–80 drops/min | 7,604 | 12 (0.16) | |
80–100 drops/min | 455 | 4 (0.88) | |
>100 drops/min | 87 | 0 (0.0) | |
Irrigating syringe | c2=13.44; P<0.0001 | ||
Yes | 17,833 | 42 (0.24) | |
No | 8,416 | 43 (0.51) | |
Unclear | 3,561 | 11 (0.31) | |
No account | 2,103 | 0 (0.0) |
3, the percentage was calculated by dividing the number of no-ADRs participants by the number of cases of ADRs. ADRs, adverse drug reactions; XBJ, Xuebijing injection; CMH, Cochran-Mantel-Haenszel.
Discussion
The real-world study covered 93 hospitals in China. There were 96 cases assessed as ADRs among 31,913 participants. No serious ADRs occurred, indicating that XBJ was well tolerated. The most frequently observed ADRs were skin pruritus (37 cases), erythra (21 cases) and chest tightness (14 cases). Analyses were conducted to determine the possible factors contributing to these ADRs. The main factors were dripping speed and irrigating syringe. Therefore, the standard use should be followed and strengthened. Allergic reactions (10) and skin rashes with itching (11) were also observed in previous studies. Thus, pyrogenic reactions may be a factor leading to skin lesions. Fingerprint technology should be widely used, strictly for quality control purposes.
The Surviving Sepsis Campaign in 2016 proposed professional recommendations for the management of sepsis: early resuscitation; control of the source of infection; intravenous supply of fluids; and administration of antibiotics, vasoactive agents, positive inotropic drugs and glucocorticoids (12). Although we have made dramatic medical advances, the treatment of sepsis has not advanced as rapidly (13). Increasing levels of antimicrobial resistance is rightly viewed as a global crisis (14). Furthermore, antibiotics themselves also cause harm, for example, organ injury, mitochondrial dysfunction, microbiome impacts, and overgrowth by fungi and clostridium difficile (15,16). Safe and effective drugs are needed to improve the curative effect of current treatment.
A meta-analysis showed that XBJ combined with ulinastatin for sepsis treatment was superior to the sole administration of ulinastatin (17). XBJ has been proven to have the function of anti-endotoxins and resisting inflammation progress (18,19). The component senkyunolide I has been well-detected in the rat brain, suggesting that its effective penetration of the brain may explain the brain dysfunction seen in patients with sepsis (20).
There are many TCM injections made up of Flos Carthami, Radix Salviae Miltiorrhizae and Radix Angelicae Sinensis, such as Danhong injection and compound angelica injection. Eight published systematic reviews that included a total of 16,469 participants suggested that Danhong injection appears to be a safe treatment for ischaemic stroke (21). Therefore, TCM injections may be safe as a new form of drug. However, more rigorously designed studies are needed to verify their safety.
There are some limitations to this study. First, although the study covered 93 hospitals, the hospitalized population in the different provinces throughout the country might not be evenly distributed, given that the majority of the participants were Han Chinese in central and eastern China. A second limitation of this study is the lack of a control group, which lead to difficulty in inferring causality. A third limitation is that the follow-up time intervals were not sufficient to evaluate long-term effects.
Conclusions
Based on the data of this real-world study, we inferred that XBJ could possibly induce ADRs, although most of these ADRs were relatively mild or non-serious. The incidence of ADRs attributed to XBJ was 0.30% (occasional). Among the ADRs, skin lesions were common. This large-scale survey of hospitalized patients found that XBJ showed relatively high drug safety and should be administered rationally and according to its instructions to prevent the occurrence of ADRs.
Acknowledgements
Funding: This work was supported by the second batch of “Ten thousand plan”-National high level talents special support plan (W02020052).
Ethical Statement: This study was granted ethical approval by the Ethics Committee, Tianjin University of Traditional Chinese Medicine (No. TJUTCM-EC20130001). All subjects signed the informed consent forms. For subjects under 18 years of age or for those with limited capacity for civil conduct, their caregivers signed the informed consent forms. The study outcomes will not affect the future management of the patients.
Footnotes
Conflicts of Interest: S Liu and ZQ Feng are employees of Chase Sun Pharmaceuticals. The other authors have no conflicts of interest to declare.
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