- ICH GCP
- US-Register für klinische Studien
- Klinische Studie 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
Studienübersicht
Status
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Einschreibung (Tatsächlich)
Phase
- Phase 2
Kontakte und Standorte
Studienorte
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Lusaka, Sambia
- Zambia-Emory HIV Research Project (ZEHRP)
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Cape Town, Südafrika, 7920
- Desmond Tutu HIV Centre Cape Town
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South Africa, Südafrika, 0204
- Medunsa
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Soweto, Südafrika, 2013
- Perinatal HIV Research Unit, Baragwanath Hospital
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Entebbe, Uganda
- Uganda Virus Research Institute
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
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Experimental: Group A
Number of Vaccine Recipients: 10 Dosage level 3 x 10^10 DRP Month 0 + 6 |
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Experimental: Group B
Number of Vaccine Recipients: 10 Dosage level 3 x 10^10 DRP Month 0+12 |
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Experimental: Group C
Number of Vaccine Recipients: 10 Dosage level 3 x 10^11 DRP Month 0+6 |
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Experimental: Group D
Number of Vaccine Recipients: 10 Dosage level 3 x 10^11 DRP Month 0+12 |
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Experimental: Group E
Number of Vaccine Recipients: 10 Dosage level 3 x 10^12 DRP Month 0+6 |
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Experimental: Group F
Number of Vaccine Recipients: 10 Dosage level 3 x 10^12 DRP Month 0+12 |
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Experimental: 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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Placebo-Komparator: Placebo
3 volunteers will receive placebo matched to each experimental group.
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Sterile isotonic buffered salt solution
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
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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
Zeitfenster: 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
Zeitfenster: 18 months
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18 months
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
|---|---|
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Safety: high versus low or negative titres of neutralizing antibodies to AAV2 at the time of each vaccination
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 18 months
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18 months
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Mitarbeiter und Ermittler
Mitarbeiter
Ermittler
- Studienstuhl: Eftyhia Vardas, MD, Perinatal HIV Research Unit (PHRU), Baragwanath
- Hauptermittler: Linda-Gail Bekker, MD, Desmond Tutu HIV Centre Cape Town
- Hauptermittler: Anwar Hoosen, Medical University of Southern Africa (Medunsa)
- Hauptermittler: Elwyn Chomba, MD, Zambia-Emory HIV Research Project (ZEHRP), Lusaka
- Hauptermittler: Pontiano Kaleebu, MD, PhD, MRC/UVRI and LSHTM Uganda Research Unit
Publikationen und hilfreiche Links
Nützliche Links
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Pathologische Prozesse
- RNA-Virusinfektionen
- Viruserkrankungen
- Durch Blut übertragene Infektionen
- Sexuell übertragbare Krankheiten, viral
- Sexuell übertragbare Krankheiten
- Lentivirus-Infektionen
- Retroviridae-Infektionen
- Immunologische Mangelsyndrome
- Erkrankungen des Immunsystems
- Krankheitsattribute
- Langsame Viruserkrankungen
- HIV-Infektionen
- Infektionen
- Übertragbare Krankheiten
- Erworbenes Immunschwächesyndrom
Andere Studien-ID-Nummern
- IAVI A002
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