Methods |
Study design: randomised controlled trial Setting/location: 8 primary health centres around Borkhar, north of Isfahan, Iran Study period: 14 months Sample size calculation: not described |
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Participants |
Type of Leishmania: infections here were thought to be caused entirely by L major parasites, although there is probably some L tropica infection within the city of Isfahan Inclusion criteria: 2 years or older, single lesion that was parasitologically positive, < 5 cm in diameter, at least 3 cm from the eyes, lesion present < 4 months Exclusion criteria: pregnant or nursing mothers, previously treated for leishmaniasis, intercurrent illness or a history of allergy to aminoglycoside N randomised: 251, aminosidine group: 126 (134 lesions); placebo group: 125 (134 lesions) Withdrawals: not described N assessed: aminosidine group: 123 lesions; placebo group: 123 lesions Age (years): aminosidine group: < 15 years: 114, >15 years: 12; placebo group: < 15 years: 105, > 15 years: 20 Sex (male/female): aminosidine group: 64/62; placebo group: 67/58 Baseline data:
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Interventions |
Type of interventions:
Duration of intervention: 14 days Co‐interventions: additional treatment, usually parenteral antimony, was given if lesions were judged to have worsened (25 participants in the PR‐treated group and 28 in the placebo group) Duration of follow‐up: 105 days after starting treatment |
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Outcomes |
Healing rates: percentage of participants 'cured' 2.5 months after treatment. Definite cure was defined as complete epithelialisation on days 45 or 105 Adverse effects Tertiary outcomes: microbiological or histopathological cure of skin lesion Time points reported: 15, 45, 105 days |
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Notes |
Study funding sources: this work was supported in part by he UNDP/World Bank/WHO Special Program for Research and Training in Tropical Diseases (TDR) and Isfahan University of Medical Sciences Possible conflicts of interest: none declared |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Randomisation of treatment was carried out in Geneva (Switzerland) but did not state how that was done. |
Allocation concealment (selection bias) | Unclear risk | Not stated |
Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | Identical ointment tubes were numbered and allocated to consecutive eligible participants. |
Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Not described |
Incomplete outcome data (attrition bias) All outcomes | Low risk | Missing outcome data balanced in numbers across intervention groups, with similar reasons for missing data across groups (16 drops out of 251, 10%) |
Selective reporting (reporting bias) | Unclear risk | The study protocol is not available, but it is clear that the published reports include all expected outcomes, including those that were pre‐specified |
Other bias | High risk | Sample size calculation and reporting of Leishmania spp involved was not correctly reported |