- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00027261
Safety and Immune Response Study of High-Dose Canarypox ALVAC-HIV Vaccine in Healthy, HIV Uninfected Adults
A Phase I Trial to Evaluate the Safety, Tolerability and Immunogenicity of High-Dose Live Recombinant Canarypox ALVAC-HIV Vaccine (vCP1452) in Healthy, HIV-1 Uninfected Adult Participants
The purpose of this study is to see if the experimental vaccine, ALVAC-HIV (vCP1452) is safe and to study how the immune system responds to the vaccine. This trial is designed to determine whether a higher vaccine dose (6 times the usual dose) will elicit a higher immune response.
As of May 2001, over 200 people received the ALVAC-HIV (vCP1452) vaccine at the lower dose. The higher dose of the vaccine to be used in this study has not been given to humans previously. High doses of a similar vaccine have been given to a few people without serious side effects. In a recent study done in mice, higher doses of ALVAC-HIV produced stronger immune responses. It is possible that the doses of ALVAC-HIV given to humans are below the amount needed for the maximum immune response. Because the exact relationship between an increased immune response and its effectiveness in preventing HIV infection is uncertain, the HVTN will use the highest dose that can be manufactured.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
To date, adverse reactions to immunization with the various ALVAC-HIV candidate vaccines, including ALVAC-HIV (vCP1452), have been similar to those observed in healthy adults who have received other licensed vaccines of similar types. In a previous trial, even high doses of recombinant ALVAC vaccine were well tolerated in a group of participants that were significantly immunocompromised. In a recent study done in mice concerning dose escalation using the ALVAC-HIV vectors, the data demonstrated more robust immune responses with higher doses of ALVAC-HIV (vCP1452) in mice. It is certainly possible that the doses of ALVAC-HIV given to humans are well below the amount needed for a maximal cytotoxic T lymphocyte (CTL) response. As the predictive value of a CTL response is at present unknown with respect to its efficacy in preventing or ameliorating HIV acquisition or infection, the HVTN will utilize the highest dose that can be currently manufactured.
All study products are to be administered intramuscularly. Participants will receive 1 of 3 injections. Group A will receive a high dose of vaccine, group B will receive a low dose of vaccine, and group C will receive a placebo. Participants are inoculated at 4 time points. Assessment of product safety includes clinical observation, monitoring of hematological, chemical, and immunologic parameters, and a social harms questionnaire. Safety will be evaluated by monitoring of participants for local and systemic adverse reactions during the course of the trial. Participants will be monitored longitudinally for HIV-specific serologic and cellular immune responses.
Tipo de estudio
Inscripción (Actual)
Fase
- Fase 1
Contactos y Ubicaciones
Ubicaciones de estudio
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Alabama
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Birmingham, Alabama, Estados Unidos, 35294
- Alabama Vaccine CRS
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California
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San Francisco, California, Estados Unidos, 94102
- San Francisco Vaccine and Prevention CRS
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San Francisco, California, Estados Unidos
- UCSF, Gen. Clinical Research Ctr., Mt. Zion Hosp.
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Maryland
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Baltimore, Maryland, Estados Unidos
- Project Brave HIV Vaccine CRS
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Massachusetts
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Boston, Massachusetts, Estados Unidos, 02115
- Brigham and Women's Hosp. CRS
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Boston, Massachusetts, Estados Unidos, 02115
- Fenway Community Health Clinical Research Site (FCHCRS)
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Missouri
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Saint Louis, Missouri, Estados Unidos, 63110
- Saint Louis Univ Health Sciences Ctr
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New York
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New York, New York, Estados Unidos, 10021
- NY Blood Ctr./Union Square CRS
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Rochester, New York, Estados Unidos, 14642
- Univ. of Rochester HVTN CRS
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Rhode Island
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Providence, Rhode Island, Estados Unidos, 02906
- Miriam Hospital's HVTU
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Tennessee
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Nashville, Tennessee, Estados Unidos, 37232
- Vanderbilt Vaccine CRS
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Virginia
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Annandale, Virginia, Estados Unidos
- Infectious Diseases Physicians, Inc.
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Washington
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Seattle, Washington, Estados Unidos, 98109
- FHCRC/UW Vaccine CRS
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria
Participants may be eligible for this study if they:
- Are between the ages of 18 and 60.
- Are in good general health.
- Have a CD4 count of 400 or more cells/mm3.
- Do not have hepatitis C or active hepatitis B.
- Have had a negative HIV blood test within 8 weeks prior to enrollment.
- Use approved methods of contraception.
- Have access to a participating site and are available for follow-up for 18 months.
- Complete a questionnaire evaluating the participant's understanding of the study prior to enrollment.
- Give written informed consent.
Exclusion Criteria
Participants may not be eligible for this study if they:
- Are pregnant or breast-feeding.
- Have received a live vaccine within 30 days prior to enrollment.
- Have received a killed vaccine or allergy treatment with injections within 14 days prior to study vaccine.
- Have used experimental research agents within 30 days prior to enrollment.
- Have received HIV-1 vaccines or placebo in a previous HIV vaccine trial.
- Have received blood products 120 days before HIV screening.
- Have received immunoglobulin 60 days before HIV screening.
- Have a history of serious harmful reactions to vaccines.
- Have a history of disease of the immune system.
- Have a history of cancer, unless it has been surgically removed and in the estimate of the investigator is not likely to happen again during the study period.
- Are using or have used (within past 6 months) drugs that interfere with the immune system.
- Have a history of type I or type II diabetes.
- Have thyroid disease.
- Have unstable asthma.
- Are currently taking preventive anti-TB therapy.
- Have a seizure disorder.
- Have a bleeding disorder that was diagnosed by a physician.
- Have had their spleen removed.
- Have angioedema with serious episodes.
- Have active syphilis.
- Have hypertension.
- Have mental problems that would interfere with the protocol.
- Have any other problems that, in the judgment of the investigator, would interfere with the study.
- Have a body mass index less than 20.
- Are allergic or sensitive to egg products.
- Have active tuberculosis.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Prevención
- Enmascaramiento: Doble
Colaboradores e Investigadores
Investigadores
- Silla de estudio: Paul Goepfert
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Infecciones por virus de ARN
- Enfermedades virales
- Infecciones
- Infecciones transmitidas por la sangre
- Enfermedades contagiosas
- Enfermedades De Transmisión Sexual Virales
- Enfermedades de transmisión sexual
- Infecciones por lentivirus
- Infecciones por retroviridae
- Síndromes de deficiencia inmunológica
- Enfermedades del sistema inmunológico
- Infecciones por VIH
Otros números de identificación del estudio
- HVTN 039
- 10200 (Otro identificador: CTEP)
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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