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Impact of Two Alternative Dosing Strategies for Trachoma Control in Niger

NCT00618449 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 1139

Last updated 2012-05-08

Study results available
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Summary

Trachoma is a disease of poverty, which in the hyperendemic areas affects all individuals by the time they are two years old. Active disease is concentrated in children and occurs sporadically in adults. Infection is more widespread. It is anticipated that 25% of the children will be blinded by this disease if they live to be 60 years of age. The blindness rates are higher in women, presumably because of their closer contact with children who can infect them and add to damage from infections the women had while young.

This proposal is to better define how azithromycin in community-based treatment can be used to eliminate blinding trachoma. We will also take the opportunity to join these field studies with genetic epidemiologic studies to better understand the dynamic epidemiology of Chlamydia trachomatis infection in a trachoma endemic area. The empiric data generated from the treatment/follow-up studies, together with the information on sources and spread patterns from genetic epidemiology will be used to generate more robust models to guide future treatment/re-treatment protocols.

We propose to conduct a randomized, community based trial in the Maradi region of Niger to test the hypothesis that two community wide azithromycin treatments, spaced one month apart, are significantly more effective in reducing ocular C. trachomatis infection and trachoma at one year compared to a single mass azithromycin treatment.

Conditions

  • Trachoma
  • Chlamydia Trachomatis

Interventions

DRUG

Azithromcyin

1 gm Azithromycin orally, provided as four 250 mg tablets for adults; pediatric suspension will be provided to children \> 1 year old (20 mg/kg body weight) to a maximal dose of 500 mg - Given 30 days apart; at Day 0 \& Day 30 for a total of 2 doses.

DRUG

Azithromycin

1 gm Azithromycin orally, provided as four 250 mg tablets for adults; pediatric suspension will be provided to children \> 1 year old (20 mg/kg body weight) to a maximal dose of 500 mg - Given at Day 30 for a total of 1 dose.

Sponsors & Collaborators

Principal Investigators

  • Julius Schachter, PhD · University of California, San Francisco

  • Abdou Amza, MD · Programme National de Lutte Contre la Cécité

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2008-01-31
Primary Completion
2009-05-31
Completion
2009-08-31

Countries

  • United States
  • Niger

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00618449 on ClinicalTrials.gov