Using Nevirapine to Prevent Mother-to-Child HIV Transmission During Breastfeeding

Overview[ - collapse ][ - ]

Purpose The many benefits of breastfeeding are well documented. However, because of the risk of mother-to-child transmission (MTCT) of HIV from an HIV infected mother to her infant, there is considerable concern over the practice, especially in developing countries. The purpose of this study is to determine the safety and effectiveness of the anti-HIV drug nevirapine (NVP) in preventing MTCT of HIV in breastfeeding infants born to HIV infected women in South Africa, Tanzania, Uganda, and Zimbabwe.
ConditionHIV Infections
InterventionDrug: Nevirapine
Drug: Nevirapine placebo
PhasePhase 3
SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
Responsible PartyNational Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov IdentifierNCT00074412
First ReceivedDecember 11, 2003
Last UpdatedJuly 5, 2013
Last verifiedJuly 2013

Tracking Information[ + expand ][ + ]

First Received DateDecember 11, 2003
Last Updated DateJuly 5, 2013
Start DateJanuary 2007
Estimated Primary Completion DateNovember 2011
Current Primary Outcome Measures
  • HIV Infection in Infants Determined to be HIV Uninfected at 6 Weeks Enrolled in Each Arm of the Study [Time Frame: At Month 6] [Designated as safety issue: No]
  • Frequency and Severity of Adverse Reactions Among Participating Infants [Time Frame: 6 weeks through 18 months] [Designated as safety issue: Yes]For those infants who were randomized at 6 weeks and who initiated study drug we looked at the frequency and severity of adverse reactions through 18 months of study. The severity of all AEs was graded according to the DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events. The term severity is described as the intensity grade or level for specific event (i.e. mild, moderate, severe, or life-threatening). Severity is not the same as seriousness.
Current Secondary Outcome Measures
  • Proportion of Infants Who Are Alive and HIV-uninfected in the Two Arms [Time Frame: At Months 6 and 18] [Designated as safety issue: No]
  • Relative Rates of HIV Infection in the Two Arms [Time Frame: At Month 18] [Designated as safety issue: No]
  • Infant Survival Rates (Mortality Regardless of HIV Infection) in the Two Arms [Time Frame: At Month 18] [Designated as safety issue: Yes]
  • Frequency and Duration of Maternal Plasma and Breast Milk NVP-resistant HIV Strains and the Relationship With HIV Transmission [Time Frame: Throughout study] [Designated as safety issue: No]
  • Relationship Between Maternal Plasma and Breast Milk RNA Levels and the Risk of MTCT [Time Frame: Throughout study] [Designated as safety issue: No]
  • Frequency and Duration of NVP-resistant HIV Strains in Plasma of HIV-infected Infants [Time Frame: Throughout study] [Designated as safety issue: No]
  • Rates of Disease Progression as Defined by CD4 Counts, HIV-1 RNA PCR, and Mortality in Infected Infants in the Two Arms [Time Frame: Throughout study] [Designated as safety issue: No]
  • NVP Concentrations in Infants Determined to be HIV-infected and in a Sample of HIV-uninfected Infants [Time Frame: Week 8 and Month 3] [Designated as safety issue: No]Samples for NVP concentration were selected from the Version 3.0 infants who were randomized to NVP at 6 weeks and whose mothers were not on 3 or more antiretrovirals at the time of randomization. All infants HIV-infected by 6 months who met this criteria were selected and matched to HIV-uninfected infants who also met this criteria in a 1:3 ratio. NVP concentrations were measured by high liquid chromatographic/mass spectroscopy from the aforementioned infants plasma samples collected at week 8 and month 3. Median NVP concentrations were compared

Descriptive Information[ + expand ][ + ]

Brief TitleUsing Nevirapine to Prevent Mother-to-Child HIV Transmission During Breastfeeding
Official TitleA Phase III Trial to Determine the Efficacy and Safety of an Extended Regimen of Nevirapine in Infants Born to HIV-Infected Women to Prevent Vertical HIV Transmission During Breastfeeding
Brief Summary
The many benefits of breastfeeding are well documented. However, because of the risk of
mother-to-child transmission (MTCT) of HIV from an HIV infected mother to her infant, there
is considerable concern over the practice, especially in developing countries. The purpose
of this study is to determine the safety and effectiveness of the anti-HIV drug nevirapine
(NVP) in preventing MTCT of HIV in breastfeeding infants born to HIV infected women in South
Africa, Tanzania, Uganda, and Zimbabwe.
Detailed Description
Breastfeeding provides general health, growth, and development benefits to an infant and
significantly decreases the risk of certain acute and chronic diseases. Breastfeeding also
decreases financial burden on the mother by decreasing the need for infant formula and
health care for the infant. However, clinical evidence has shown that HIV can be readily
transmitted through breast milk, although the risk of HIV MTCT over time while breastfeeding
has been difficult to determine. Given the many advantages of breastfeeding and the
significant obstacles to substituting formula for breast milk in developing countries, there
is an urgent need to make breastfeeding by HIV infected women safe. This study will evaluate
the safety and efficacy of an extended NVP regimen for prevention of MTCT of HIV through
breastfeeding.

This study will last approximately 3.5 years. Mother/infant pairs will be enrolled over a
period of 18 to 24 months. During the third trimester of pregnancy, HIV infected
participants will receive HIV counseling and the intrapartum/neonatal two-dose NVP
prophylaxis regimen to prevent MTCT. Mothers will also be given infant feeding options
counseling and information on administering the study drug to the infant. Infants who were
randomly assigned to receive a placebo and older than 6 weeks of age as of 08/10/07 OR to
receive NVP will continue their treatment assignment. Infants who were randomly assigned to
receive a placebo and are 6 weeks of age or less as of 08/10/07 will receive open-label NVP
through Day 42 of life. For all other participants, all randomized infants will receive
extended NVP through 6 weeks (Day 42) of life. All eligible infants will be randomly
assigned to one of two groups at Week 6 following birth. The first group will receive
extended NVP treatment; the second group will receive nevirapine placebo. Randomized infants
will receive the extended NVP or NVP placebo through the first 6 months of life or until
cessation of breastfeeding, whichever occurs earlier. Mothers will be instructed to begin
giving their infants their assigned intervention starting at Day 3 to Day 7 postpartum. All
mothers and infants outside of the study will be offered the local standard of care
antiretroviral (ARV) regimen for the prevention of MTCT, but these ARVs will not be provided
by the study.

Follow-up evaluations will be conducted at Weeks 2 and 6 and Months 3, 6, 12, and 18 for
mothers, and at Weeks 2, 5, 6, and 8 and Months 3, 4, 5, 6, 9, 12, and 18 for infants. Study
visits will include physical examinations, blood tests (including HIV tests), and medical
histories. Study participants will be followed for up to 3.5 years.
Study TypeInterventional
Study PhasePhase 3
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver), Primary Purpose: Prevention
ConditionHIV Infections
InterventionDrug: Nevirapine
10 mg/ml oral suspension taken once daily up to 6 months of age. Dosage will increase throughout study.
Other Names:
NVPDrug: Nevirapine placebo
Oral suspension taken once daily up to 6 months of age
Other Names:
NVP placebo
Study Arm (s)
  • Experimental: 2A
    For infants: extended treatment with NVP
  • Placebo Comparator: 2B
    For infants: extended treatment with NVP placebo

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment2026
Estimated Completion DateNovember 2011
Estimated Primary Completion DateSeptember 2011
Eligibility Criteria
Note: As of 08/10/07, the arm assignments for current and new participants have changed.
Please see the above description for this trial for more information.

Inclusion Criteria for Mothers:

- 18 years of age or older

- HIV infected

- In third trimester of pregnancy, or at most 3 days post-delivery

- If baby is not yet born, planning to deliver at a facility where the study is being
conducted

- Plan to breastfeed

Exclusion Criteria for Mothers:

- Complications with this pregnancy

- Serious medical condition that would interfere with the study (e.g., that would
prevent breastfeeding or adherence to the follow-up schedule), as judged by the
on-site clinician

Inclusion Criteria for Infants:

- Born to an HIV infected mother who is eligible for the study

- Weighed at least 2000 grams (4.4 lbs) at birth

- Blood sample obtained from the infant for HIV-1 DNA PCR, CBC with differential, and
ALT

- Infants in a multiple birth are eligible only if both/all infants are eligible for
the study and assigned to the same study group

- Able to breastfeed (e.g., mother and infant alive with no condition apparent that
would prevent breastfeeding)

Exclusion Criteria for Infants:

- HIV DNA PCR positive at birth

- ALT of Grade 2 or higher at birth

- Hemoglobin, absolute neutrophil count, or platelet count of Grade 3 or higher at
birth

- Skin rash of Grade 2B (urticaria), Grade 3, or above

- Confirmed or suspected clinical hepatitis

- Serious illness or condition that would interfere with compliance with study
procedures
GenderBoth
AgesN/A
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesSouth Africa, Tanzania, Uganda, Zimbabwe

Administrative Information[ + expand ][ + ]

NCT Number NCT00074412
Other Study ID NumbersHPTN 046
Has Data Monitoring CommitteeNot Provided
Information Provided ByNational Institute of Allergy and Infectious Diseases (NIAID)
Study SponsorNational Institute of Allergy and Infectious Diseases (NIAID)
CollaboratorsEunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
National Institute on Drug Abuse (NIDA)
National Institute of Mental Health (NIMH)
Investigators Study Chair: Hoosen M. Coovadia, MD, MBBS Centre for HIV Networking (HIVAN), Nelson Mandela School of Medicine, University of NatalStudy Chair: Laura Guay, MD Johns Hopkins UniversityStudy Chair: Wafaie Fawzi, MD, PhD Department of Nutrition, Harvard School of Public HealthStudy Chair: Yvonne Maldonado, MD Stanford UniversityStudy Chair: Daya Moodley, MSc, PhD Department of Obstetrics and Gynaecology, Nelson R Mandela School of Medicine, University of Natal
Verification DateJuly 2013

Locations[ + expand ][ + ]

CAPRISA Umlazi CRS
Umlazi, KwaZulu-Natal, South Africa
Muhimbili University of Health and Allied Sciences (MUHAS) CRS
Dar es Salaam, Tanzania
Makerere University- JHU Research Collaboration {MUJHU CARE LTD} CRS
Kampala, Mpigi, Uganda
Seke North CRS
Chitungwiza, Zimbabwe
St Mary's CRS
Chitungwiza, Zimbabwe