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NCT ID: NCT05597280 Not yet recruiting - Leprosy Clinical Trials

Bedaquiline Enhanced Post ExpOsure Prophylaxis for Leprosy

Start date: March 1, 2023
Phase: Phase 3
Study type: Interventional

There will be two study arms. Arm 1 will be the intervention arm in which there will be provided BE-PEP to all persons residing within 100 meters of an index case, to be repeated after four weeks for household contacts. Arm 2 will be the comparator arm in which the WHO recommended standard PEP will be provided, i.e. 10 mg/kg of rifampicin in a single dose. In both arms the investigators will target anyone living within 100 meters of an index case or the entire village if more than 50% are eligible. Provision of BE-PEP will start in 2023 and follow-up will continue until 2026. The main study outcome will be the comparison of leprosy risk in individuals that received BE-PEOPLE standard WHO SDR-PEP versus individuals that received BE-PEP. In addition the investigators will compare the overall leprosy incidence over the follow-up period between the two study arms.

NCT ID: NCT05406479 Recruiting - Leprosy Clinical Trials

Bedaquiline Enhanced Post ExpOsure Prophylaxis for Leprosy (Phase 2)

Start date: July 14, 2022
Phase: Phase 2
Study type: Interventional

This study will evaluate a combination of bedaquiline and rifampicin as post exposure prophylaxis (PEP) for leprosy in Comoros. It will be a follow-up to the PEOPLE trial on PEP with rifampicin, which is ending in 2022. This new trial will be called the 'Bedaquiline Enhanced Post ExpOsure Prophylaxis for Leprosy' or 'BE-PEOPLE' trial. There will be two main study arms, a comparator arm based on the current WHO recommendation of providing a single dose of rifampicin (10 mg/kg) to close contacts of leprosy patients and an intervention arm in which this regimen will be reinforced with bedaquiline, 400 or 800 mg depending on weight, to be repeated once after four weeks for household contacts. The main study will be preceded by a phase 2 safety study.

NCT ID: NCT03662022 Active, not recruiting - Leprosy Clinical Trials

Post ExpOsure Prophylaxis for LEprosy in the Comoros and Madagascar

Start date: January 2, 2019
Phase: Phase 3
Study type: Interventional

This is a cluster randomized trial on effectiveness of different modalities of Single Double Dose of Rifampicin Post-Exposure Prophylaxis (SDDR-PEP) for leprosy in the Comoros (Anjouan and Mohéli) and Madagascar. The study aims to identify which approach to the selection of contacts for post exposure prophylaxis is most effective to reduce incident leprosy, and to Interrupt ongoing transmission from asymptomatic persons in the process of developing multibacillary leprosy.

NCT ID: NCT03526718 Completed - Leprosy Clinical Trials

Improved Understanding of Ongoing Transmission of Leprosy in the Hyperendemic Comoros (ComLep)

Start date: April 1, 2017
Study type: Observational [Patient Registry]

Despite decades of a solid leprosy control program, including active case finding and follow-up on therapeutic outcome, the Comoros islands of Anjouan and Moheli continue to be hyperendemic for leprosy, with leprosy case notifications far exceeding those for tuberculosis, while the third island, Grande Comore, presents few cases. The high proportion (31% in 2015) of disease in children indicates that recent transmission is a major driver of the persistent endemicity, and that present control measures are not sufficient. The low proportion (2.6% average in last 10 years) of grade II disabilities in newly diagnosed cases indicates that case detection is early. The main objective of the present proposal is to identify which persons would most benefit from prophylactic treatment. The secondary objective is to unravel human, bacterial and environmental risk factors for transmission of and progression to leprosy disease, with the ultimate goal to reduce the leprosy incidence.. The program has remaining expertise to re-establish laboratory confirmation of leprosy patients, allowing to optimize and validate molecular genotyping techniques to complement conventional epidemiological investigations in a 3-year prospective cohort of leprosy patients and their close contacts, aiming to identify transmission links. A third objective is to document diagnostic delays in more detail As the leprosy control programme has initiated a pilot study on rifampicin prophylaxis in four villages on Anjouan in 2015, a prospective cohort study will permit measuring the leprosy incidence in close contacts as well as those in neighboring houses, who did or did not receive rifampicin prophylaxis. The expected outcome of this project will be to identify risk factors for leprosy transmission. Specifically, we expect to identify those contacts at highest risk of developing leprosy disease, who would most benefit from rifampicin prophylaxis or other preventive measures.