- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT00888446
Safety and Immunogenicity Study of tgAAC09, an HIV Vaccine in an Adeno-associated Virus (AAV) Capsid (TGC14F)
Phase II, Placebo-controlled, Double-blind, Dose-escalation/Dose-optimization Trial to Evaluate Safety and Immunogenicity of tgAAC09, an HIV Vaccine Containing Clade C Gag-PR-ΔRT DNA in an Adeno-associated Virus (AAV) Capsid
Panoramica dello studio
Stato
Intervento / Trattamento
Descrizione dettagliata
Tipo di studio
Iscrizione (Effettivo)
Fase
- Fase 2
Contatti e Sedi
Luoghi di studio
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Cape Town, Sud Africa, 7920
- Desmond Tutu HIV Centre Cape Town
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South Africa, Sud Africa, 0204
- Medunsa
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Soweto, Sud Africa, 2013
- Perinatal HIV Research Unit, Baragwanath Hospital
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Entebbe, Uganda
- Uganda Virus Research Institute
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Lusaka, Zambia
- Zambia-Emory HIV Research Project (ZEHRP)
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Healthy male or female
- Age at least 18 years on the day of screening and no greater than 50 years on the day of the first study injection
- Willing to comply with the requirements of the protocol and available for follow up for the planned duration of the study
- Able and willing to give informed consent.
- Willing to undergo HIV testing, counseling and receive results
- If sexually active female of child-bearing potential (not menopausal or anatomically sterile), willing to use an effective method of contraception (hormonal contraceptives; intrauterine contraceptive device (IUCD); condoms; anatomical sterility in self or partner) from screening until at least four months after last study injection and willing to undergo urine pregnancy tests at screening, prior to each injection and four months after the last injection
- If sexually active male, willing to use a method of contraception (such as condoms) from screening until four months after the last study injection
Exclusion Criteria:
- HIV-1 or HIV-2 infection
- Active tuberculosis
- Clinically relevant abnormality on history or examination including history of immunodeficiency, or cancer, or autoimmune disorder
- Use of systemic corticosteroids, immunosuppressive or anticancer medications in the last six months
- Chronic condition that, in the opinion of the investigator or the designated trial physician, would make the volunteer unsuitable for the study
Any of the following abnormal laboratory parameters:
- Hemoglobin <9.0 g/dL (females), <12.0 g/dL (males)
- Absolute Neutrophil Count (ANC): ≤ 999/mm3
- Absolute Lymphocyte Count (ALC): ≤ 500/mm3
- Platelets: decreased ≤ 90,000 or increased ≥ 550,000/mm3
- Creatinine: > 1.4 x ULN
- AST: >3.0 x ULN
- ALT: >3.0 x ULN
- Urine dipstick: blood = 2+ or more (except in menstruating females); protein = 2+ or more
Any of the following high-risk behaviors:
- Had unprotected vaginal or anal sex with a known HIV positive person in the past six months
- Had unprotected vaginal or anal sex with a casual partner (i.e. no continuing established relationship) in the past six months
- Engaged in sex work for money or drugs in the past six months
- Used injection drugs illegally in the past six months
- Acquired a sexually transmitted infection (STI) in the past six months
- If female, pregnant, lactating or planning a pregnancy within four months after last study injection
- Receipt of live attenuated vaccine within 30 days or other vaccine within 14 days of the first study injection
- Receipt of blood transfusion or blood products six months prior to the first study injection
- Participation in another clinical trial of an investigational product currently or within last 12 weeks of first study injection or expected participation during this study
- Prior receipt of an investigational HIV vaccine
- History of severe local or systemic reaction to vaccination(s) or history of severe allergic reactions
- History of major neurological or psychiatric disorders
- Positive for hepatitis B surface antigen, active untreated syphilis (confirmed by treponemal test such as TPHA in addition to nontreponemal test such as RPR) or other active sexually transmitted diseases
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Prevenzione
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Quadruplicare
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
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Sperimentale: Group A
Number of Vaccine Recipients: 10 Dosage level 3 x 10^10 DRP Month 0 + 6 |
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Sperimentale: Group B
Number of Vaccine Recipients: 10 Dosage level 3 x 10^10 DRP Month 0+12 |
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Sperimentale: Group C
Number of Vaccine Recipients: 10 Dosage level 3 x 10^11 DRP Month 0+6 |
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Sperimentale: Group D
Number of Vaccine Recipients: 10 Dosage level 3 x 10^11 DRP Month 0+12 |
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Sperimentale: Group E
Number of Vaccine Recipients: 10 Dosage level 3 x 10^12 DRP Month 0+6 |
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Sperimentale: Group F
Number of Vaccine Recipients: 10 Dosage level 3 x 10^12 DRP Month 0+12 |
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Sperimentale: Group G
Number of Vaccine Recipients: 10 Preselected for baseline AAV neutralization titers of <1/8 Dosage level 3 x 10^12 DRP Month 0+6 |
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Comparatore placebo: Placebo
3 volunteers will receive placebo matched to each experimental group.
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Sterile isotonic buffered salt solution
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Lasso di tempo |
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Safety: proportion of volunteers with severe local and systemic reactions, proportion of volunteers with other SAEs (including laboratory abnormalities) related to study vaccine, number of volunteers with SAEs related to study vaccine
Lasso di tempo: 18 months
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18 months
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Proportion of volunteers with HIV-1 specific T- cell responses quantified by γ-IFN ELISPOT and magnitude of the response, and proportion of volunteers with HIV-1 specific binding antibodies and magnitude of the response
Lasso di tempo: 18 months
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18 months
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Misure di risultato secondarie
Misura del risultato |
Lasso di tempo |
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Safety: high versus low or negative titres of neutralizing antibodies to AAV2 at the time of each vaccination
Lasso di tempo: 18 months
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18 months
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Immunogenicity: proportion of volunteers with HIV-1 specific T- cell responses by γ-IFN CFC or other T-cell assays
Lasso di tempo: 18 months
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18 months
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Immunogenicity endpoints in volunteers with high versus low or negative titres of neutralizing antibodies to AAV2 at the time of each vaccination
Lasso di tempo: 18 months
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18 months
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Immunogenicity endpoints in volunteers with versus without four-fold or greater increase in titres of neutralizing antibodies to AAV2 after vaccination
Lasso di tempo: 18 months
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18 months
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Immunogenicity endpoints after the second study injection, compared with the first study injection
Lasso di tempo: 18 months
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18 months
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Immunogenicity endpoints after the second study injection following a twelve-month interval compared to a six-month interval
Lasso di tempo: 18 months
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18 months
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Vaccine biodistribution: presence and persistence of vaccine in peripheral blood mononuclear cells (PBMC), saliva, nasal swabs, urine and semen or cervical/vaginal secretions
Lasso di tempo: 18 months
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18 months
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Collaboratori e investigatori
Collaboratori
Investigatori
- Cattedra di studio: Eftyhia Vardas, MD, Perinatal HIV Research Unit (PHRU), Baragwanath
- Investigatore principale: Linda-Gail Bekker, MD, Desmond Tutu HIV Centre Cape Town
- Investigatore principale: Anwar Hoosen, Medical University of Southern Africa (Medunsa)
- Investigatore principale: Elwyn Chomba, MD, Zambia-Emory HIV Research Project (ZEHRP), Lusaka
- Investigatore principale: Pontiano Kaleebu, MD, PhD, MRC/UVRI and LSHTM Uganda Research Unit
Pubblicazioni e link utili
Collegamenti utili
Studiare le date dei record
Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
- Processi patologici
- Infezioni da virus a RNA
- Malattie virali
- Infezioni a trasmissione ematica
- Malattie sessualmente trasmissibili, virali
- Malattie trasmesse sessualmente
- Infezioni da lentivirus
- Infezioni da retroviridae
- Sindromi da deficit immunologico
- Malattie del sistema immunitario
- Attributi della malattia
- Malattie da virus lenti
- Infezioni da HIV
- Infezioni
- Malattie trasmissibili
- Sindrome da immunodeficienza acquisita
Altri numeri di identificazione dello studio
- IAVI A002
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .