A Phase 1a Trial Assessing the Safety, Tolerability, and Immunogenicity of GS-4774 (GI-13020) at Various Dose Levels and Regimens in Healthy Adults
A Randomized, Open-Label, Multi-Arm, Dose Escalation, Phase 1a Trial Assessing the Safety, Tolerability, and Immunogenicity of GI-13020; an Inactivated Recombinant Saccharomyces Cerevisiae Expressing Hepatitis B Virus X, Surface and Core Antigens, at Various Dose Levels and Regimens in Healthy Adults.
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Tatsächlich)
Einschreibung
Phase
Phase
- Phase 1
Kontakte und Standorte
Studienorte
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Arizona
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Phoenix, Arizona, Vereinigte Staaten, 85283
- Celerion
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
Inclusion Criteria:
- Signed, written, informed consent from the subject before any study-specific procedures are performed
- Free of obvious health problems as established by medical history and clinical examination before entering into the study
- If female, negative pregnancy test and for women of childbearing potential willingness to use reliable method of birth control during the study and for 30 days after the last dose of study medication
- Male or female aged ≥ 18 years at the time of first dose
- Negative scratch test (immediate hypersensitivity, immunoglobulin E (IgE) mediated) to S. cerevisiae
Exclusion Criteria:
- Hospitalization in the last 6 months
- No medicine adjustments in the last 6 months
- History of anaphylaxis from any cause
- History of hepatitis B virus (HBV) infection as evidenced by detection of HBV Surface and Core antigens
- History of vaccination with HBV prophylactic vaccine or positive for antibody to HBV Surface and Core antigens
- Known exposure to HBV within the past 6 weeks
- Increased alpha fetoprotein (AFP) at screening
- History of hepatitis C virus (HCV) infection or positive HCV antibody, Herpes zoster, shingles or any other chronic viral infection
- Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests
- Known history of HIV infection or positive HIV antibody test at screening
- History of demyelinating disease such as Guillain-Barre Syndrome
- History of Bell's Palsy
- Immunosuppression as a result of underlying illness or treatment
- History of cancer within the last 5 years with the exception of localized basal or squamous cell carcinoma or Stage 1A cervical cancer
- History of Crohn's disease or ulcerative colitis
- History of autoimmune disease
- History of organ transplantation
- Concurrent and chronic therapy with immunosuppressive drugs including systemic corticosteroids
- Receipt of investigational drugs or vaccines within 30 days or 5 half lives, whichever is longer, prior to first injection with the study drug
- Receipt of immunoglobulin or other blood products within 3 months prior to enrollment
- Receipt of allergy shots within the preceding 7 days or expected to receive allergy shots during the study and 7 days following completion of study
- Receipt of biologics
- Negative histamine response on scratch test at screening
- High risk for noncompliance with the protocol
- Alcohol and/or IV drug abuse within the past year
- Positive urine drug test at screen visit
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
|
Experimental: GS-4774 at 10 yeast units (YU)
10 YU of GS-4774 given either weekly or monthly
|
GS-4774 is a recombinant yeast-based biological product engineered to express HBV antigens.
The product is a heat-killed yeast (S. cerevisiae) containing a chimera of HBV X, Score, and Core antigens.
Andere Namen:
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Experimental: GS-4774 at 40 YU
40 YU of GS-4774 given either weekly or monthly
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GS-4774 is a recombinant yeast-based biological product engineered to express HBV antigens.
The product is a heat-killed yeast (S. cerevisiae) containing a chimera of HBV X, Score, and Core antigens.
Andere Namen:
|
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Experimental: GS-4774 at 80YU
80 YU of GS-4774 given either weekly or monthly
|
GS-4774 is a recombinant yeast-based biological product engineered to express HBV antigens.
The product is a heat-killed yeast (S. cerevisiae) containing a chimera of HBV X, Score, and Core antigens.
Andere Namen:
|
Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Safety of GS-4774 at various doses
Zeitfenster: 6 months
|
Frequency of serious adverse events Frequency and severity of common non-serious adverse events Frequency of discontinuations of therapy due to adverse events Common laboratory assessments (chemistry, hematology, urinalysis) Dose Limiting Toxicities
|
6 months
|
Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Immunogenicity of various doses and dosing regimens of GS-4774
Zeitfenster: 6 months
|
Frequency and magnitude of antigen specific immune responses by enzyme-linked immunosorbent spot (ELISpot) assay for cytokine production, to include interferon gamma (IFNγ) Frequency and magnitude of antigen specific immune responses by lymphocyte proliferation assay (LPA) Frequency and magnitude of anti-Saccharomyces cerevisiae antibody (ASCA) responses Pentamer staining for HBV specific T cells Frequency of regulatory T cells (Treg) responses
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6 months
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Publikationen und hilfreiche Links
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
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- GI-13020-01
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