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A Phase I Study to Evaluate the Safety and Immunogenicity of Recombinant HIV-1 Envelope Antigen in Children Born to HIV-Infected Mothers

This study has been completed.
Sponsor:
Collaborators:
Genentech
Biocine
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier:
NCT00000774
First received: November 2, 1999
Last updated: May 22, 2012
Last verified: May 2012
History of Changes
  Purpose

PRIMARY: To determine the safety of envelope recombinant proteins rgp120/HIV-1MN (Genentech) and rgp120/HIV-1SF2 (Chiron/Biocine) in infants who are of indeterminate HIV status born to HIV-infected women. To evaluate changes in viral load in infants proven to be infected and absolute CD4 counts in all immunized infants.

SECONDARY: To evaluate the immunogenicity of these envelope recombinant proteins in infants of indeterminate HIV status born to HIV-infected women.

Only 30-50 percent of HIV-infected infants have detectable virus at birth. Successful early sensitization to HIV envelope epitopes may help prevent infection or, alternatively, may enhance HIV-specific immune function to alter HIV replication and disease progression.


Condition Intervention Phase
HIV Infections
HIV Seronegativity
 Biological: rgp120/HIV-1MN
Biological: rgp120/HIV-1 SF-2
Biological: Placebo version of rgp120/HIV-1MN
Biological: Placebo version of rgp120/HIV-1SF2
 Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Phase I Study to Evaluate the Safety and Immunogenicity of Recombinant HIV-1 Envelope Antigen in Children Born to HIV-Infected Mothers

Resource links provided by NLM:

MedlinePlus related topics: HIV/AIDS
U.S. FDA Resources

Further study details as provided by National Institute of Allergy and Infectious Diseases (NIAID):

Primary Outcome Measures:
  • Development of adverse clinical, laboratory, or immunological responses to any of the recombinant vaccines [ Time Frame: Throughout study ] [ Designated as safety issue: Yes ]
  • Changes in viral load in infants found to be HIV infected [ Time Frame: Throughout study ] [ Designated as safety issue: No ]
  • Changes in the slope of absolute CD4 counts in all immunized children [ Time Frame: Throughout study ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Changes in immune response to the vaccine candidates [ Time Frame: Throughout study ] [ Designated as safety issue: No ]

Enrollment: 156
Study Completion Date: January 1999
Arms Assigned Interventions
Experimental: 1
Patients who will receive rgp120/HIV-1MN
 Biological: rgp120/HIV-1MN
Administered at weeks 0, 4, 8, 12, and 20. Individual group assignment will determine specific dosage and schedule.
Experimental: 2
Patients who will receive rgp120/HIV-1SF2
 Biological: rgp120/HIV-1 SF-2
Administered at weeks 0, 4, 8, 12, and 20. Individual group assignment will determine specific dosage and schedule.
Placebo Comparator: 3
Patients who will receive the placebo counterpart of 120/HIV-1MN
 Biological: Placebo version of rgp120/HIV-1MN
Administered at weeks 0, 4, 8, 12, and 20. Individual group assignment will determine specific dosage and schedule.
Placebo Comparator: 4
Patients who will receive the placebo counterpart of rgp120/HIV-1SF2
 Biological: Placebo version of rgp120/HIV-1SF2
Administered at weeks 0, 4, 8, 12, and 20. Individual group assignment will determine specific dosage and schedule.

Detailed Description:

Only 30-50 percent of HIV-infected infants have detectable virus at birth. Successful early sensitization to HIV envelope epitopes may help prevent infection or, alternatively, may enhance HIV-specific immune function to alter HIV replication and disease progression.

Newborns are randomized to one of three different doses of either rgp120/HIV-1MN or rgp120/HIV-1SF2 or their matching placebos. At each dose level, 12 patients receive vaccine and three patients receive placebo. Immunizations are performed at 0, 4, 12, and 20 weeks, and patients are followed until 2 years of age. Three of four patients treated at a given dose level must have received two immunizations without evidence of grade 3 or 4 clinical or laboratory toxicity before dose escalation occurs. Twelve additional patients are treated with the optimal dose of each vaccine at weeks 0, 2, 8, and 20 (An accelerated schedule PER AMENDMENT 3/20/96. Changed from - 0, 4, 8, and 20) accompanied by three additional placebo patients per vaccine. PER AMENDMENT 3/20/96: The optimal dose of rgp120/HIV-1MN is 100 mcg and will be given to the 12 patients and the placebo will be given to 3. The optimal dose of rgp120/HIV-1SF2 is 5 mcg and will be given to the 12 patients and the placebo will be given to 3.

PER 2/3/95 AMENDMENT: After the initial patients are enrolled, 18 additional newborns will be randomized to one of the three dose levels of rgp120/HIV-1MN (with no placebos). PER AMENDMENT 6/5/95: Another group of 18 newborns will be randomized to one of three treatments representing 3 different doses of the Chiron/Biocine vaccine (with no placebos).

  Eligibility

Ages Eligible for Study:   up to 3 Days
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria

Concurrent Medication:

Allowed:

  • Antiretroviral therapy.
  • Coenrollment in a therapeutic protocol if begun at least 30 days following the week 20 immunization.
  • Routine immunizations if given more than 1 week before or after study vaccine.

Patients must be:

  • > 37 weeks gestation and < 72 hours of age born to HIV-infected women.
  • NOT born to women who received either passive or active immunotherapy during pregnancy.
  • NOT breast-fed.
  • NOT born to women who are hepatitis B surface antigen positive.
  • Receiving AZT at study entry (except infants enrolled in ACTG 076).

NOTE:

  • Parent or guardian must provide informed consent and be willing to comply with study requirements.

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms or conditions are excluded:

  • Documented or suspected serious bacterial infection, metabolic illness, or other immediate life-threatening conditions.

Concurrent Medication:

Excluded:

  • Passive or active HIV-specific immunotherapy other than the study candidate vaccines.
  • Investigational medications.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00000774

  Show 37 Study Locations
Sponsors and Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
Genentech
Biocine
Investigators
Study Chair: Borkowsky W NYU MEDICAL CENTER
Study Chair: Wara DW UCSF Moffit Hospital
  More Information

Publications:
Cunningham CK, Wara DW, Fenton T, Kang M, Hawkins E, McNamara J, Mofenson L, Duliege AM, Francis D, McFarland E, Borkowsky W. Safety of recombinant HIV-1 envelope vaccines in neonates born to HIV-1 infected women. Conf Retroviruses Opportunistic Infect. 1998 Feb 1-5;5th:93 (abstract no 81)

Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier: NCT00000774     History of Changes
Other Study ID Numbers: ACTG 230, 11207
Study First Received: November 2, 1999
Last Updated: May 22, 2012
Health Authority: United States: Federal Government
United States: Food and Drug Administration

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
Vaccines, Synthetic
Virus Replication
HIV Envelope Protein gp120
 AIDS Vaccines
HIV Preventive Vaccine
HIV Therapeutic Vaccine

Additional relevant MeSH terms:
HIV Infections
Acquired Immunodeficiency Syndrome
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
 Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
Slow Virus Diseases

ClinicalTrials.gov processed this record on May 22, 2013