| Methods |
Study design: randomised controlled trial Setting/location: India Study period: not described Sample size calculation: the number of subjects was determined by the standard method of Schork 1967 |
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| Participants |
Type of Leishmania: L tropica in the area Inclusion criteria: demonstration of Leishmania from skin lesion by the slit smear technique. Exclusion criteria: pregnant women and children < 12 years old, suffering from any chronic illness, immunocompromised, allergic to sulphones, prior therapy for cutaneous Leishmania in any form, patients with scars of healed leishmanial lesions, lesions of > 4 months duration N randomised: 120. 60 in each group Withdrawals: 0 N assessed: 120 (100%), 60 in each group Age: range 15‐56 years Sex: 52 males/68 females Baseline data: the duration of the lesions ranged from 3 weeks to 3 months. Lesions were situated mainly on the exposed parts of the body (face, arms and feet). 46 participants (24 in dapsone group and 22 in placebo group) had a single lesion while 74 participants had multiple lesions (maximum 13). |
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| Interventions |
Type of interventions:
Duration of intervention: every 12 h for 6 weeks Duration of follow‐up: 6 weeks |
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| Outcomes |
Primary outcome: percentage of participants 'cured' at the end of treatment Secondary outcome: adverse effects Tertiary outcomes: microbiological or histopathological cure of skin lesions Time points reported: clinical response: days 15 and 45. Clinical and parasitological response: 6 weeks |
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| Notes |
Informed consent obtained: yes Study funding sources: — Possible conflicts of interest: — |
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| Risk of bias | ||
| Bias | Authors' judgement | Support for judgement |
| Random sequence generation (selection bias) | Unclear risk | Quote: "... and was randomly allocated to receive either tablets of dapsone (100 mg) or placebo tablets which were identical in appearance" Comment: insufficient detail was reported about the method used to generate the allocation sequence. |
| Allocation concealment (selection bias) | Unclear risk | Quote: "... and was randomly allocated to receive either tablets of dapsone (100 mg) or placebo tablets which were identical in appearance" Comment: no further information provided. |
| Blinding of participants and personnel (performance bias) All outcomes | Unclear risk | Quote: "double‐blind therapeutic trial" Comment: participants looks like blinded but no description about personnel blinding were provided |
| Blinding of outcome assessment (detection bias) All outcomes | Unclear risk | Quote: "double‐blind therapeutic trial" Comment: no further information about blinding |
| Incomplete outcome data (attrition bias) All outcomes | Low risk | All relevant outcome data were provided |
| Selective reporting (reporting bias) | Low risk | Relevant outcomes were reported |
| Other bias | Unclear risk | There was not enough information in the publication to assess if there were other biases present. |