A Leukapheresis Study for Immune Responses in Healthy US Adults Who Receive BCG Vaccination Followed by Boosting With AERAS-402 (C-021-402)
A Phase I, Double-Blind, Randomized, Placebo-controlled Leukapheresis Study to Obtain Lymphocytes for the Study of Immune Responses in Healthy Adult Volunteers in the U.S. Who Receive BCG Vaccination Followed by Boosting With AERAS-402
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Phase 1
Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- Is male or female
- Provided written informed consent prior to any study related procedures
- Is age ≥18 years and ≤45 years on Study Day -84.
- Has Body Mass Index (BMI) ≥19 and <33 by nomogram (see appendices)
- Has general good health, confirmed by medical history and physical examination
- Females physically capable of pregnancy (not sterilized and still menstruating or within 1 year of the last menses if menopausal) in sexual relationships with men must avoid pregnancy with an acceptable method of avoiding pregnancy from 28 days prior to Study Day -84 through the end of the study.
- Females physically capable of pregnancy must have a negative serum pregnancy test within 7 days prior to Study Day -84 AND a negative urine pregnancy test on Study Day -84, Study Day 0, and Study Day 28.
- Has committed to avoid elective surgery for the duration of the study
- Has ability to complete all study visits as required per the protocol and is able to be contacted by telephone
Exclusion Criteria:
- Acute illness, oral temperature ≥37.5°C, or axillary lymphadenopathy on Study Day -84, Study Day 0, or Study Day 28.
Any of the following laboratory results from blood and urine collected within 7 days prior to Study Day -84 (evaluated per local laboratory parameters):
- Abnormal hemoglobin or hematocrit
- Abnormal white blood cell count, absolute neutrophil count, or absolute lymphocyte count
- Elevated creatinine, total bilirubin, AST, ALT, or alkaline phosphatase (ALP)
- Evidence of chronic hepatitis (e.g., hepatitis B core antibody, or hepatitis C antibody, or other)
- Laboratory test (e.g., QuantiFERON®-TB) evidence of Mycobacterium tuberculosis (Mtb) infection
- History of residence in a tuberculosis-endemic country, per WHO 2008 "high-burden" definition
- History of treatment for active or latent tuberculosis infection
- History or evidence (including chest X-ray) of active tuberculosis
- Shared a residence within the last year with an individual on anti-tuberculosis treatment or with culture or smear positive tuberculosis
- History of allergic disease or reactions likely to be exacerbated by any component of the BCG or study vaccines
- History of autoimmune disease or immunosuppression
- Current household contact or occupational exposure to an individual with known significant immunosuppression
- History or evidence on physical examination of any systemic disease, or acute or chronic illness that, in the opinion of the investigator, may interfere with the evaluation of the safety or immunogenicity of the vaccine, including axillary lymphadenopathy
- History or laboratory evidence of any past, present or future possible immunodeficiency state which will include (but is not limited to) any laboratory indication of HIV infection
- History of alcohol or drug abuse within the past 2 years
- History of cheloid formation
- Previous medical history that may compromise the safety of the subject in the study
- Any current medical, psychiatric, occupational, or substance abuse problems which, in the opinion of the investigator, will make it unlikely the subject will comply with the protocol
Inability to discontinue daily medications during the study period except the following:
- Contraceptives
- Multivitamins
- Inhaled or topical corticosteroids
- Tobacco smoking of a pack or more of cigarettes a day, or cannabis smoking three or more days per week
- Received immunosuppressive medication within 45 days prior to Study Day -84 (inhaled and topical corticosteroids are permitted)
- Received investigational drugs or vaccine products within 182 days prior to Study Day -84 or planned participation in any other investigational study during the study period
- Received investigational Mtb vaccine at any time prior to Study Day -84
- Received vaccination or immunotherapy with a BCG product at any time prior to Study Day -84.
- Received immunoglobulin or blood products within 45 days prior to Study Day -84.
- Received any standard vaccine within 45 days prior to Study Day -84 except inactivated influenza vaccine which may have been received within 2 weeks prior to Study Day -84.
- History of high risk sexual behaviors since 1977.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Verhütung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Vervierfachen
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
Experimental: AERAS-402
3 x10^10 viral particles per 0.5 mL suspended in 10 mM Tris buffer, 1 mM MgCl2, 75 mM NaCl, 5% w/v sucrose, 0.02% w/v PS-80 (polysorbate-80), 0.1 mM EDTA, 10 mM l-histidine, 0.5% v/v ethanol and water.
The dose volume administered was 0.5 mL.
|
Live recombinant serotype 35 replication deficient adenovirus vector expressing a fusion protein of 3 Mycobacterium tuberculosis antigens (Ag85A, Ag85B, and TB10.4).
BCG given to all participants at day -84 prior to a boost with either Aeras-402 or placebo.
|
|
Aktiver Komparator: Placebo
1.0 mL sterile vaccine buffer containing 10mM Tris buffer, 1 mM MgCl2, 75 mM NaCl, 5% w/v sucrose, 0.02% w/v PS-80 (polysorbate-80), 0.1 mM EDTA, 10 mM l-histidine, 0.5% v/v ethanol and water.
The dose volume administered was 0.5 mL
|
BCG given to all participants at day -84 prior to a boost with either Aeras-402 or placebo.
Identical buffer solution in which AERAS-402 is formulated.
|
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Cellular immune responses to AERAS-402 in healthy adult volunteers who received two booster doses of AERAS-402 administered 84 and 112 days after BCG vaccination, through leukapheresis and cryopreservation of cells followed by in vitro assay.
Zeitfenster: Up to study day 98
|
percentage of CD4 and CD8 T cells from leukapheresis that produce any of three cytokines (IFN γ, TNF α, and/or IL 2).
|
Up to study day 98
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Zeitfenster |
|---|---|
|
Evaluation of adverse events (AEs) and serious adverse events (SAEs).
Zeitfenster: Up to study day 98
|
Up to study day 98
|
Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Studienleiter: Ann M Ginsberg, MD PhD, Aeras
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn
Studienbeginn
Primärer Abschluss (Tatsächlich)
Primärer Abschluss
Studienabschluss (Tatsächlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Schätzen)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- C-021-402
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