Phase 4
Completed N=128
Partnership for Rapid Elimination of Trachoma
Source: ClinicalTrials.gov NCT00792922 ↗Enrolled (actual)
128
Serious AEs
0.0%
Results posted
Jul 2017
Primary outcomePrimary: Community Prevalence of Trachoma and Ocular C. Trachomatis (CT) Infection at Baseline — 30.7; 30.3; 31.1; 30.5 community
◆ Published Evidence
Established
34citations · ~4 / year
Childhood Mortality After Mass Distribution of Azithromycin: A Secondary Analysis of the PRET Cluster-randomized Trial in Niger.
Summary
Trachoma, an ocular infection caused by C. trachomatis, is the second leading infectious cause of blindness worldwide. Years of repeated infection with C. trachomatis cause the eyelid to scar and contract and ultimately to rotate inward such that the eyelashes rub against the eyeball and abrade the cornea (trichiasis). The World Health Organization (WHO) has endorsed a multi-faceted strategy to combat trachoma, which includes the use of antibiotic treatment to reduce the community pool of infection with C. trachomatis. The objective of this study is to conduct a randomized, community-based trial in three countries (Niger, Tanzania and The Gambia), representing different baseline endemicities, of alternative coverages and frequencies of administration of mass antibiotic treatment as well as to determine the cost-effectiveness of these different strategies from a program perspective.
Linked Publications (5)
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Childhood Mortality After Mass Distribution of Azithromycin: A Secondary Analysis of the PRET Cluster-randomized Trial in Niger.
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The Effect of Antibiotic Selection Pressure on the Nasopharyngeal Macrolide Resistome: A Cluster-randomized Trial.
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Community-level chlamydial serology for assessing trachoma elimination in trachoma-endemic Niger.
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Biannual versus annual mass azithromycin distribution and malaria seroepidemiology among preschool children in Niger: a sub-study of a cluster randomized trial.
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Comparison of Mass Azithromycin Coverage Targets of Children in Niger: A Cluster-Randomized Trachoma Trial.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Community Prevalence of Trachoma and Ocular C. Trachomatis (CT) Infection at Baseline |
30.7; 30.3; 31.1; 30.5; 24.6; 17.8 | — |
| PRIMARY Community Prevalence of Trachoma and Ocular C. Trachomatis (CT) Infection at 36 Months |
9.0; 6.1; 5.4; 4.0; 3.0; 2.3 | 0.22 |
Eligibility Criteria
Inclusion criteria for communities:
- Communities are located in the target districts and accessible by vehicle
- The community leaders consent to have the community enrolled
- Rapid assessment and/or available data suggest trachoma rates are higher than 20% in the community.
- The community size is 250 persons.
If a community meets the inclusion criteria and community leaders consent to have the community enrolled, then sentinel children will be selected based on the following criteria:
- The child is age 5 years or younger
- The child must be a resident in an eligible, sample community (defined as either living in the community since birth, or moved in with parents or guardians).
- The child must not have an ocular condition that would preclude grading trachoma or taking an ocular specimen.
- The child must be willing to have a swab taken as part of being a sentinel child (this is critical for The Gambia and Tanzania, as each swab result counts towards meeting the stopping rule)
- The child must have an identifiable guardian capable of providing consent to participate.
Data sourced from ClinicalTrials.gov (NCT00792922) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.