View clinical trials related to Onchocerciasis.
Filter by:We will examine whether a combination of Ivermectim (IVM) plus Albendazole (ALB) compared to IVM alone given annually, which is the current standard for mass drug administration (MDA), is more effective in sterilizing adult worms. We will also address whether IVM plus ALB given twice per year is superior to IVM given once per year or twice per year.
Approximately 4,000 people will participate per year. The study population will include females and males over 5 years of age who live in filariasis and onchocerciasis endemic areas. Subject selection will not be based on health status. Two sites will be studied, and each study will last for 4 years. Participants will be studied only once in cross-sectional surveys. Some subjects may be included in more than one annual population survey, but this is not a longitudinal study. Investigators will compare annual and semiannual mass drug administration (MDA) for lymphatic filariasis and onchocerciasis, and investigators will compare the impact of these MDA schedules on soil transmitted helminth infections. MDA will be administered by others (Ivorian Ministry of Health). The investigators will test the hypothesis that semiannual mass drug administration (MDA) is superior to annual MDA for elimination of lymphatic filariasis, onchocerciasis and for control of soil transmitted helminth (STH) infections. 1. Compare the relative impact and cost effectiveness of annual vs. twice yearly mass drug administration (MDA) for elimination of lymphatic filariasis (LF) in these populations. 2. Compare the relative impact and cost effectiveness of annual vs. twice yearly mass drug administration (MDA) for elimination of onchocerciasis in these populations. 3. Study the impact of annual vs. semiannual MDA on soil transmitted helminth (STH) infection in these populations.
Approximately 5,200 people will participate per year. The study population will include females and males over 5 years of age who live in filariasis and onchocerciasis endemic areas. Subject selection will not be based on health status. Two sites will be studied, and each study will last for 4 years. Participants will be studied only once in cross-sectional surveys. Some subjects may be included in more than one annual population survey, but this is not a longitudinal study. Investigators will compare annual and semiannual mass drug administration (MDA) for lymphatic filariasis and onchocerciasis, and investigators will compare the impact of these MDA schedules on soil transmitted helminth infections. MDA will be administered by others (Liberian Ministry of Health or Liberian Institute of Biomedical Research). The investigators will test the hypothesis that semiannual mass drug administration (MDA) is superior to annual MDA for elimination of lymphatic filariasis, onchocerciasis and for control of soil transmitted helminth (STH) infections. 1. Compare the relative impact and cost effectiveness of annual vs. twice yearly mass drug administration (MDA) for elimination of lymphatic filariasis (LF) in these populations. 2. Compare the relative impact and cost effectiveness of annual vs. twice yearly mass drug administration (MDA) for elimination of onchocerciasis in these populations. 3. Study the impact of annual vs. semiannual MDA on soil transmitted helminth (STH) infection in these populations. Continuation Activities (2019/2020): Additional one-time cross-sectional surveys will be completed in the Harper site in Maryland district in 2019 and in Lofa in 2020 to measure the long-term impact of MDA on W. bancrofti, O. volvulus, and on STH infection parameters following these cumulative 7-9 rounds of MDA since the baseline survey taken in 2013. Since the last DOLF surveys (3rd follow-ups) in these sites in 2016 & 2017, respectively, there have been a total of 3 annual rounds of MDA in both areas. These additional surveys will recruit 2,500 participants in the Maryland area villages and 3,200 in the Lofa area villages.
Approximately 3,500 people will participate per year. The study population will include females and males over 5 years of age who live in filariasis endemic areas. The study will be performed in Indonesia in B. timori and W. bancrofti endemic areas over a period of 4 years. Participants will be studied only once in cross-sectional surveys. Some subjects may be included in more than one annual population survey, but this is not a longitudinal study. Purpose of the study is to evaluate different mass drug administration (MDA) regimens for lymphatic filariasis and also to study the impact of MDA on soil transmitted helminth infections (STH). MDA will administered by others (e.g., Ministry of Health). Results of this study may enhance efforts to control and eliminate these important neglected tropical diseases. The investigators will test the hypothesis that accelerated mass drug administration will be superior to annual MDA for elimination of lymphatic filariasis and for control of soil transmitted helminth infections (STH): 1. Compare the relative impact and cost effectiveness of annual vs. twice yearly mass drug administration (MDA) for elimination of lymphatic filariasis (LF). 2. Study the impact of annual vs. semiannual MDA on soil transmitted helminth (STH) infection in these populations.
This is a Phase 3 study comparing the efficacy, safety and tolerability of moxidectin and ivermectin in subjects infected with Onchocerca volvulus, which is the parasite that causes river blindness. Subjects participating in the study will be randomly assigned (by a 2 to1 ratio) to receive one orally-administered dose of either moxidectin or ivermectin.
The primary purpose of this study was to determine the safety and tolerability of moxidectin in subjects infected with Onchocerca volvulus (a parasitic worm).
The purpose of this study is to determine whether rifampin and/or azithromycin are effective in the treatment of river blindness (onchocerciasis).