This study is a randomised, double blinded, placebo controlled trial designed to assess the therapeutic efficacy and safety of CHAd63-KH, a new candidate Leishmania vaccine, in patients with persistent PKDL. 100 participants will be randomly assigned (50 participants in each arm) to receive placebo or ChAd63-KH 7.5 x10(10)vp intramuscular injection into the deltoid region. Doses will be administered at a single time point. Volunteers aged between 12-50 years with persistent PKDL will be recruited at Professor El-Hassan's Centre for Tropical Medicine, Dooka, Gedarif State, Sudan, and will be followed up for 120 days after the dosing visit. The trial is planned to run for 24 months.~Secondary objectives are as follows:~To compare the humoral and cellular immune responses generated by the candidate vaccine in patients with persistent PKDL.~To observe any clinical changes in the cutaneous PKDL disease over a 120 day period following vaccination
This trial is designed to assess the therapeutic efficacy and safety of CHAd63-KH, a new candidate Leishmania vaccine, in patients with persistent PKDL. 100 participants will be randomly assigned (50 participants in each arm) to receive placebo or ChAd63-KH 7.5 x10(10)vp. Doses will be administered at a single time point.