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Ocular Changes After Ivermectin - (DOLF IVM/Oncho)

Onchocerciasis Clinical Trial

Official title:
Microfilarial Clearance From the Eye and Ocular Changes Associated With Ivermectin Treatment in Individuals With Onchocerciasis

Clinical Trial Summary

The DOLF Ocular Changes after Ivermectin study will investigate the kinetics of O. volvulus microfilaria (Mf) in the eye following treatment with ivermectin. The primary objective is to determine the proportion of participants with complete Mf clearance from the eye at 3 and 6 months following treatment with ivermectin (IVM).

Clinical Trial Description

This study will examine the kinetics of Mf clearance in the eye following ivermectin treatment. Previous studies have been unable to fully assess clearance Mf from the posterior chamber of the eye. This study will be the first to use optical coherence tomography (OCT) in patients with onchocerciasis to document parasites and pathology in the anterior and posterior chambers of the eye, and assess ocular changes following standard ivermectin treatment. This will be a biomedical prospective cohort study. The cohort will be stratified based on Mf levels to achieve approximately the following distribution of individuals with roughly one-third of participants in each group. 1. Individuals with positive skin snip Mf density of ≥ 1 Mf/mg), but no observable Mf in eyes using slit lamp and indirect ophthalmoscopy 2. Individuals with positive skin snip Mf density of ≥ 1 Mf/mg and 1-10 Mf in either eye at baseline (based on the highest number counted in either eye) 3. Individuals with positive skin snip Mf density of ≥ 1 Mf/mg and >10 Mf in either eye at baseline. All participants recruited into the study will be treated with a single dose of ivermectin (150 ug/kg) by mouth under direct observation. This is the standard of care for treatment with onchocerciasis. Participants will be evaluated following treatment with detailed parasitological and ocular examinations 7 days, 3 months and 6 months after treatment. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03517462
Study type Interventional
Source Washington University School of Medicine
Contact
Status Completed
Phase N/A
Start date August 6, 2018
Completion date August 23, 2019
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