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.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 1
Kontakter og lokationer
Studiesteder
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Arizona
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Phoenix, Arizona, Forenede Stater, 85283
- Celerion
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
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
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: 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.
Andre navne:
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Eksperimentel: GS-4774 at 40 YU
40 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.
Andre navne:
|
|
Eksperimentel: 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.
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Safety of GS-4774 at various doses
Tidsramme: 6 months
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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
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6 months
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Immunogenicity of various doses and dosing regimens of GS-4774
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- GI-13020-01
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