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NCT00340691 · ClinicalTrials.gov registry record · Phase 2

Doxycycline to Treat Mansonella Perstans Infection in Patients With and Without Lymphatic Filariasis

A Phase 2 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).

Completed
Registry status
Phase 2
Development phase
1,500
Enrollment target

NCT00340691: Completed Phase 2 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).

NCT00340691 is a Phase 2 study that has completed, run by National Institute of Allergy and Infectious Diseases (NIAID). The registered enrollment target is 1,500 participants, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (1028% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00340691, a Phase 2 study, has completed, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).

COMPLETED
Registry status
Phase 2
Development phase
1,500 participants
Enrollment target

Study Summary

This study will examine: 1) the safety and effectiveness of the drug doxycycline in reducing the number of Mansonella perstans (Mp) worms in the blood of infected patients, and 2) the effects of doxycycline followed by albendazole and ivermectin treatment for lymphatic filariasis, caused by the parasitic worm Wuchereria bancofti (Wb). Both Mp and Wb very small filarial worms that are spread by mosquitoes. Some people are infected with both Mp and Wb. Although most people do not become ill from infection with these parasites, some develop symptoms. Wb can cause swellings in the arms, legs, breast, and scrotum, and can progress to permanent swelling of the legs or arms called elephantiasis. Mp can cause itching, swelling, fever, headache, or other symptoms. Ivermectin and albendazole are medicines used to treat lymphatic filariasis. They eliminate the Wb parasite from the blood but do not affect Mp. Doxycycline is used to treat many kinds of infections and has also recently been shown to reduce the number of filarial worms in several types of filarial infections. The drug may be useful in Mp infections as well. Residents of Sabougou and nearby villages in Mali who are infected with the Mp parasite, are between 14 and 65 years of age, are in good health, are not pregnant or breastfeeding, and weigh at least 40 kg (88 lb) may be eligible for this study. They may or may not also be infected with Wb. Candidates are screened with a brief medical history and physical examination and blood tests to look for infection with Mp and Wb. Participants undergo a complete physical examination and medical history. Blood is drawn for routine blood tests. Participants are then randomly assigned to one of four treatment groups, as follows: 1) doxycycline for 6 weeks; 2) doxycycline for 6 weeks followed by a single dose of albendazole and ivermectin given 6 months after the beginning of doxycycline treatment; 3) a single dose of albendazole and ivermectin given 6 months after the begi

Interventions

  • DRUG Doxycycline

Trial Details

FieldValue
Enrollment Target 1,500 participants
Start Date 2004-12-06
Phase Phase 2

What the finished NCT00340691 record still lists

NCT00340691 is an interventional study that assigns participants to a tested intervention. Its 1,500 participants enrollment target places it among the larger protocols in the corpus, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (1028% higher).

The record links to 0 conditions, and to 1 intervention - of which Doxycycline is the first listed.

NCT00340691 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00340691 about?

NCT00340691 is a clinical study titled "Doxycycline to Treat Mansonella Perstans Infection in Patients With and Without Lymphatic Filariasis". This study will examine: 1) the safety and effectiveness of the drug doxycycline in reducing the number of Mansonella perstans (Mp) worms in the blood of infected patients, and 2) the effects of doxycycline followed by albendazole and ivermectin treatment for lymphatic filariasis, caused by the para...

What is the current status of trial NCT00340691?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 1,500 participants. The study started on 2004-12-06.

What interventions are being tested in trial NCT00340691?

The interventions under investigation include: Doxycycline (DRUG).

Who is sponsoring clinical trial NCT00340691?

This trial is sponsored by National Institute of Allergy and Infectious Diseases (NIAID), which has 2,006 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00340691's enrollment target sits among peer trials

1,500 11th of 2000 higher than 1,989 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00340691, the US trial registry maintained by the National Library of Medicine. NCT00340691 (large enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.