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. 2017 Nov 17;2017(11):CD005067. doi: 10.1002/14651858.CD005067.pub4
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
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).
Interventions Type of interventions:
  • Group 1: dapsone tablets (100 mg)

  • Group 2: placebo tablets


Duration of intervention: every 12 h for 6 weeks
Duration of follow‐up: 6 weeks
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
Notes Informed consent obtained: yes
Study funding sources: —
Possible conflicts of interest: —
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.