Deworming drug could stop blinding flies
NCT ID NCT07657143
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a safe dose of ivermectin, a common deworming drug, can make human feces deadly to flies that spread trachoma. Trachoma is a leading cause of blindness, and these flies carry the bacteria from person to person. Twelve healthy adults will take ivermectin, and researchers will collect their stool and tears for up to 30 days to see if the drug kills fly larvae and how much ivermectin is excreted.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 12 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jul 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Able and willing to give fully informed consent * Able to understand and comply with the study procedures * Able to produce a stool on most days * Consider themselves to be in good general health * Aged 18 to 65 years Exclusion Criteria: * Suspected or known to be sensitive or allergic to ivermectin * Women who are pregnant, nursing or intending to become pregnant * Aware of having any neurological disorders or recent history of seizures * History of travel to a region endemic for Loa loa. * Currently taking acenocoumarol, warfarin or levimasole
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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London School of Hygiene & Tropical Medicine
London, WC1E 7HT, United Kingdom