Terminé

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

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Ce qui est testé

ALVAC-HIV MN120TMG (vCP205)

+ ALVAC-RG Rabies Glycoprotein (vCP65)

+ MN rgp120/HIV-1 and GNE8 rgp120/HIV-1

Biologique
Qui peut participer

Infections transmises par le sang+11

+ Maladies génito-urinaires

+ Maladies Génitales

De 18 à 50 ans
Voir tous les critères d'éligibilité
Comment se déroule l'étude

Étude de prévention

Phase 1
Interventionnel
Voir le détail du protocole

Résumé

Sponsor principalNational Institute of Allergy and Infectious Diseases (NIAID)
Dernière mise à jour : 29 octobre 2021
Issu d'une base de données validée par les autorités. Revendiquer en tant que partenaire

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.]

Sponsor principalNational Institute of Allergy and Infectious Diseases (NIAID)
Dernière mise à jour : 29 octobre 2021
Issu d'une base de données validée par les autorités. Revendiquer en tant que partenaire

Protocole

Cette section fournit des détails sur le plan de l'étude, y compris la manière dont l'étude est conçue et ce qu'elle évalue.
Détails du design

84 participants à inclure

Nombre total de participants que l'essai clinique vise à recruter.

Prévention

Cette étude cherche à prévenir l'apparition d'une maladie ou d'un trouble chez des personnes qui ne l'ont pas encore développé. Elles concernent souvent des personnes à risque et testent des vaccins, des changements de mode de vie ou des traitements préventifs.



Éligibilité

Les chercheurs recherchent des patients correspondant à une certaine description appelée critères d'éligibilité : état de santé général ou traitements antérieurs du patient.
Conditions
Critères

Tout sexe

Le sexe biologique des participants éligibles à s'inscrire.

De 18 à 50 ans

Tranche d'âge des participants éligibles à participer.

Volontaires sains autorisés

Indique si les individus en bonne santé et ne présentant pas la condition étudiée peuvent participer.

Conditions

Pathologie

Infections transmises par le sangMaladies génito-urinairesMaladies GénitalesMaladies TransmissiblesSyndromes de Déficience ImmunologiqueMaladies du Système ImmunitaireInfectionsInfections à RetroviridaeInfections à virus ARNMaladies Sexuellement TransmissiblesMaladies viralesMaladies Sexuellement Transmissibles ViralesInfections à LentivirusInfections à VIH

Critères

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.

Plan de l'étude

Découvrez tous les traitements administrés dans cette étude, leur description détaillée et ce qu'ils impliquent.
Groupes de traitement
Objectifs de l'étude

7 groupes d'intervention sont désignés dans cette étude

Cette étude ne comporte pas de groupe placebo. 

Groupes de traitement

Groupe I

Expérimental
Participants will undergo treatment intramuscularly

Groupe II

Expérimental
Participants will undergo treatment orally

Groupe III

Expérimental
Participants will undergo treatment intranasally

Groupe IV

Expérimental
Participants will undergo treatment intrarectally

Groupe 5

Expérimental
Participants will undergo treatment intravaginally

Groupe 6

Expérimental
Participants will undergo treatment intranasally and intramuscularly

Groupe 7

Expérimental
Participants will undergo treatment intrarectally and intramuscularly

Objectifs de l'étude

Objectifs principaux

Centres d'étude

Ce sont les hôpitaux, cliniques ou centres de recherche où l'essai est conduit. Vous pouvez trouver le site le plus proche de vous ainsi que son statut.

Cette étude comporte 6 sites

UAB AVEG

Birmingham, United StatesOuvrir UAB AVEG dans Google Maps

JHU AVEG

Baltimore, United States

St. Louis Univ. School of Medicine AVEG

St Louis, United States

Univ. of Rochester AVEG

Rochester, United States
Terminé6 Centres d'Étude