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Clinical Trial Summary

The purpose of the study was to test the equivalence of a short zidovudine (ZDV) regimen as compared to a longer, ACTG-076-like, ZDV regimen in reducing the risk of mother-to-child transmission of HIV: and to assess and compare the safety and tolerance of the long and shortened ZDV regimens.


Clinical Trial Description

Multicenter, randomized, four arms, double-blind, controlled study. Consenting pregnant women were tested for HIV from the beginning of pregnancy until 26 of gestational age (GA). If HIV-positive and eligible, women completed a Pre-entry baseline check-up. Enrollment took place at 28 weeks' gestational age. Women meeting selection criteria were randomly assigned to one of four study arms (see below).

AMENDMENT (March 20, 1999)

Data Safety and Monitory Board interim review (March 17, 1999) The DSMB reported that the transmission rate in the longest arm (long treatment of both mother and baby), was significantly lower than that in the shortest arm (short treatment of both the mother and the baby) and this discrepancy was larger than the previously agreed on difference which, if found, would call for changing the study design. In addition, the transmission rates in the remaining two arms of the study were similar to that in the longest arm. The difference that was found could not be explained by any baseline characteristics of the participants, such as maternal age, gestational age at delivery, birth weight, cesarean section rate, or any others.

The DSMB recommended that enrollment into the shortest arm of the study be terminated, and the study be continued with a modification of design so that new enrollees would enter one of the three remaining arms.

All women enrolled before this amendment was effective and delivering after March 20th, 1999, and previously randomized to the Smother-Sinfant arm, were unblinded in order to give their infants open label zidovudine for 6 weeks. ;


Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Prevention


Related Conditions & MeSH terms


NCT number NCT00386230
Study type Interventional
Source Institut de Recherche pour le Developpement
Contact
Status Completed
Phase Phase 3
Start date June 1997
Completion date August 2000

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