A Randomized Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox ALVAC-HIV vCP205 Delivered by Alternate Mucosal Routes in HIV-1 Uninfected Adult Volunteers

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier:
NCT00000884
First received: November 2, 1999
Last updated: May 16, 2012
Last verified: May 2012
  Purpose

To compare the safety of ALVAC-HIV vCP205 to that of ALVAC-RG vCP65 rabies glycoprotein, delivered by a variety of mucosal routes. To evaluate the antibody, humoral, and cellular immune responses resulting from ALVAC-HIV vCP205. [AS PER AMENDMENT 8/3/98: To obtain safety data on AIDSVAX B/B boosting administered by the intramuscular and intranasal routes in the context of previous immunization via alternate mucosal routes or intramuscularly with a canarypox vector expressing HIV-1 antigens (vCP205). To obtain immunogenicity data on AIDSVAX B/B boosting.] One of the earliest observations in the HIV epidemic was the demonstration of HIV infection at mucosal surfaces of cells in the genital tract. These data suggest that priming of immune defenses of viral infected cells may be an important component in the strategy of developing an effective HIV vaccine. Direct immunization of relevant mucosal surfaces with a vectored vaccine may stimulate mucosal immunity. The ALVAC-HIV vCP205 immunogen is constructed from a live recombinant canarypox vector that has a good safety profile in volunteers and should allow mucosal induction of immunity.


Condition Intervention Phase
HIV Infections
Biological: MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Biological: ALVAC-HIV MN120TMG (vCP205)
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Prevention
Official Title: A Randomized Phase I Safety and Immunogenicity Trial of Live Recombinant Canarypox ALVAC-HIV vCP205 Delivered by Alternate Mucosal Routes in HIV-1 Uninfected Adult Volunteers

Resource links provided by NLM:


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

Primary Outcome Measures:
  • To compare the safety of ALVAC-HIV vCP205 to that of ALVAC-RG vCP65 rabies glycoprotein, delivered by a variety of mucosal routes [ Time Frame: Throughout study ] [ Designated as safety issue: Yes ]
  • To evaluate the antibody, humoral, and cellular immune responses resulting from ALVAC-HIV vCP205 [ Time Frame: Throughout study ] [ Designated as safety issue: No ]
  • To obtain safety data on AIDSVAX B/B boosting administered by the intramuscular and intranasal routes in the context of previous immunization via alternate mucosal routes or intramuscularly with a canarypox vector expressing HIV-1 antigens (vCP205) [ Time Frame: Throughout study ] [ Designated as safety issue: Yes ]
  • To obtain immunogenicity data on AIDSVAX B/B boosting [ Time Frame: Throughout study ] [ Designated as safety issue: No ]

Enrollment: 84
Study Completion Date: October 2000
Arms Assigned Interventions
Experimental: 1
Participants will undergo treatment intramuscularly
Biological: ALVAC-HIV MN120TMG (vCP205)
Dosage will vary based on route of administration
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Dosage will vary based on route of administration
Experimental: 2
Participants will undergo treatment orally
Biological: MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Dosage will vary based on route of administration
Biological: ALVAC-HIV MN120TMG (vCP205)
Dosage will vary based on route of administration
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Dosage will vary based on route of administration
Experimental: 3
Participants will undergo treatment intranasally
Biological: MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Dosage will vary based on route of administration
Biological: ALVAC-HIV MN120TMG (vCP205)
Dosage will vary based on route of administration
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Dosage will vary based on route of administration
Experimental: 4
Participants will undergo treatment intrarectally
Biological: MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Dosage will vary based on route of administration
Biological: ALVAC-HIV MN120TMG (vCP205)
Dosage will vary based on route of administration
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Dosage will vary based on route of administration
Experimental: 5
Participants will undergo treatment intravaginally
Biological: MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Dosage will vary based on route of administration
Biological: ALVAC-HIV MN120TMG (vCP205)
Dosage will vary based on route of administration
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Dosage will vary based on route of administration
Experimental: 6
Participants will undergo treatment intranasally and intramuscularly
Biological: MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Dosage will vary based on route of administration
Biological: ALVAC-HIV MN120TMG (vCP205)
Dosage will vary based on route of administration
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Dosage will vary based on route of administration
Experimental: 7
Participants will undergo treatment intrarectally and intramuscularly
Biological: MN rgp120/HIV-1 and GNE8 rgp120/HIV-1
Dosage will vary based on route of administration
Biological: ALVAC-HIV MN120TMG (vCP205)
Dosage will vary based on route of administration
Biological: ALVAC-RG Rabies Glycoprotein (vCP65)
Dosage will vary based on route of administration

Detailed Description:

One of the earliest observations in the HIV epidemic was the demonstration of HIV infection at mucosal surfaces of cells in the genital tract. These data suggest that priming of immune defenses of viral infected cells may be an important component in the strategy of developing an effective HIV vaccine. Direct immunization of relevant mucosal surfaces with a vectored vaccine may stimulate mucosal immunity. The ALVAC-HIV vCP205 immunogen is constructed from a live recombinant canarypox vector that has a good safety profile in volunteers and should allow mucosal induction of immunity.

This randomized, double-blind trial evaluates the safety of and immune response to vaccination with ALVAC-HIV vCP205 given at 0, 1, 3, and 6 months. Patients are randomly assigned to 1 of 7 drug administration routes as follows:

Group A: Intramuscular Group B: Oral Group C: Intranasal Group D: Intrarectal Group E: Intravaginal Group F: Intranasal/intramuscular Group G: Intrarectal/intramuscular Twelve patients are randomized to each group, 8 of whom receive experimental therapy with ALVAC-HIV vCP205 and 4 of whom receive control therapy with ALVAC-RG vCP2058 (rabies vaccine). Women are preferentially enrolled, with a goal of 60% women (minimum of 4 women per treatment arm); only women are randomized to Group E. Blinding is maintained with respect to drug assignment rather than route of administration, after randomization. NOTE: The protocol will be amended to add 2 boost vaccinations with subunit products at approximately Months 9 and 12 when a suitable boost product is identified. [AS PER AMENDMENT 8/3/98: The protocol has been modified to include 2 booster vaccinations to be administered at 9 and 12 months. Patients in Group A receive booster vaccination with ALVAC-HIV VCP205 or ALVAC-RG intranasally. Patients in Groups B through G are boosted with AIDSVAX B/B vaccine (a bivalent vaccine consisting of MN rgp120/HIV-1 antigen and GNE8 rgp120/HIV-1 antigen in alum adjuvant) or with Imovax diploid cell rabies vaccine; vaccinations for these patients are given intramuscularly.] [AS PER AMENDMENT 11/19/98: The second booster vaccination for group A will be administered at study Month 15.]

  Eligibility

Ages Eligible for Study:   18 Years to 50 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria

Volunteers must have:

  • Negative ELISA for HIV within 8 weeks of immunization.
  • No envelope bands in Western blot for HIV-1 within 8 weeks of immunization.
  • Normal history and physical examination.

Exclusion Criteria

Co-existing Condition:

Volunteers with the following conditions are excluded:

  • Medical or psychiatric condition or occupational responsibilities that preclude compliance with the protocol, including recent suicidal attempt or ideation or present psychosis.
  • Active syphilis (if the serology is documented to be a false positive or due to a remote [more than 6 months] treated infection, the volunteer is eligible).
  • Active tuberculosis (volunteers with a positive PPD and a normal chest x-ray showing no evidence of TB and not requiring INH therapy are eligible).
  • Allergy to egg products or neomycin (used to prepare ALVAC vaccines).
  • Occupational or household exposure to birds (no known pathogenicity of avipox for birds).
  • Episode of severe diarrhea within 1 week prior to immunization.
  • Abnormal pelvic exam with evidence of sexually transmitted disease or other genital tract infection or trauma, including vaginitis, cervicitis, ecchymosis, vulvar or cervicovaginal lesions or abrasions, or chronic cervical and/or abnormal PAP smear changes.
  • Recent history of rectal bleeding or repeatedly positive hemocult test (within 1 month).
  • Positive for Hepatitis B surface antigen.

Volunteers with the following prior conditions are excluded:

  • History of immunodeficiency, chronic illness (in particular, chronic inflammatory disease or gastroenteritis), malignancy, or autoimmune disease.
  • History of cancer unless there has been surgical excision followed by a sufficient observation period to give a reasonable assurance of cure.
  • History of anaphylaxis or history of other serious adverse reactions to vaccines.
  • History of serious allergic reaction to any substance, requiring hospitalization or emergent medical care (e.g., Stevens-Johnson syndrome, bronchospasm, or hypotension).

Prior Medication:

Excluded:

  • Live attenuated vaccines within 60 days of study. NOTE: Medically indicated subunit or killed vaccines (e.g., influenza, pneumococcal) are not exclusionary, but should be given at least 2 weeks away from HIV immunizations.
  • Experimental agents within 30 days prior to study.
  • HIV-1 vaccines or placebo received in a previous HIV vaccine trial.
  • Previous immunization against rabies.

Prior Treatment:

Excluded:

  • Prior hysterectomy.
  • Blood products or immunoglobulin in the past 6 months.

Risk Behavior:

Excluded:

Volunteers with identifiable higher-risk behavior, or whose partners have an identifiable higher-risk behavior for HIV infection as determined by screening questions designed to identify risk factors for HIV infection (i.e., AVEG Risk Groups C or D); specific exclusions include:

  • history of injection drug use within the last 12 months prior to enrollment or higher-risk sexual behavior as defined by the AVEG.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00000884

Locations
United States, Alabama
UAB AVEG
Birmingham, Alabama, United States, 35294
United States, Maryland
JHU AVEG
Baltimore, Maryland, United States
United States, Missouri
St. Louis Univ. School of Medicine AVEG
St Louis, Missouri, United States, 63104
United States, New York
Univ. of Rochester AVEG
Rochester, New York, United States, 14642
United States, Tennessee
Vanderbilt Univ. Hosp. AVEG
Nashville, Tennessee, United States, 37232
United States, Washington
UW - Seattle AVEG
Seattle, Washington, United States, 98144
Sponsors and Collaborators
Investigators
Study Chair: P Wright
  More Information

No publications provided

Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier: NCT00000884     History of Changes
Other Study ID Numbers: AVEG 027, 10577
Study First Received: November 2, 1999
Last Updated: May 16, 2012
Health Authority: United States: Federal Government

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
Vaccines, Synthetic
Injections, Intramuscular
HIV-1
Immunity, Cellular
AIDS Vaccines
HIV Seronegativity
Mucous Membrane
Antibodies, Viral
Avipoxvirus
Genetic Vectors
HIV Envelope Protein gp120
Immunity, Mucosal
Rabies Vaccines
HIV Preventive 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
Krestin
Antibiotics, Antineoplastic
Antineoplastic Agents
Therapeutic Uses
Pharmacologic Actions
Antiviral Agents
Anti-Infective Agents
Adjuvants, Immunologic
Immunologic Factors
Physiological Effects of Drugs
Interferon Inducers
Radiation-Protective Agents
Protective Agents

ClinicalTrials.gov processed this record on July 29, 2014