Clinical Trial: The Safety and Effectiveness of Zidovudine in HIV-Infected Pregnant Women and Their Infants

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Phase III Randomized Placebo-Controlled Trial to Evaluate the Efficacy, Safety and Tolerance of Oral Zidovudine (AZT) in Pregnant HIV Infected Women and Their Infants

Brief Summary:

To determine whether the rate of HIV transmission from mother to infant can be reduced by continuous oral zidovudine (AZT) treatment to HIV infected pregnant women, intravenous AZT during childbirth, and oral AZT treatment of the newborn infant from birth to six weeks of age. The study is also designed to evaluate the safety of AZT for both the pregnant woman and the newborn infant.

No method exists to prevent transmission of HIV from an infected mother to her newborn infant. Giving an antiviral agent (such as AZT) to the mother and to the newborn could in theory decrease the risk of infection to the newborn by reducing the exposure of the fetus to maternal virus, or by preventive treatment of the fetus before exposure.

Detailed Summary:

No method exists to prevent transmission of HIV from an infected mother to her newborn infant. Giving an antiviral agent (such as AZT) to the mother and to the newborn could in theory decrease the risk of infection to the newborn by reducing the exposure of the fetus to maternal virus, or by preventive treatment of the fetus before exposure.

Patients are enrolled during their pregnancy, between 14 and 34 weeks of gestation. They are chosen by random selection to receive AZT or placebo. Treatment continues until labor at which time they begin to receive continuous intravenous study drug. Study drug treatment is discontinued after the umbilical cord is clamped. AZT is then offered all women as per labeled indications for 6 weeks postpartum, while appropriate medical followup is being arranged. Mothers who develop an AIDS defining illness or whose CD4+ cell counts decrease to less than 200 cells/mm3 during pregnancy are offered open-label drug at that time. The mother is followed by her primary obstetrician at an AIDS Clinical Trials Unit (ACTU) or subunit facility. The mother may deliver at the ACTU or a non-ACTU site. Treatment of the infant is started in the newborn nursery and continues on an outpatient basis. Infants receive the same study treatment as the mother for 6 weeks, and are monitored to week 78.

Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

Current Primary Outcome:

Original Primary Outcome:

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Original Secondary Outcome:

Information By: National Institute of Allergy and Infectious Diseases (NIAID)

Dates:
Date Received: November 2, 1999
Date Started:
Date Completion:
Last Updated: May 15, 2015
Last Verified: March 2012