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En fase 1 klinisk studie av adjuvante proteinbaserte HCV-vaksinekandidater (HCV-vaksinestudie)

24. september 2026 oppdatert av: University of Alberta

The purpose of this study is to investigate the safety and antibody (germ fighters) response of the experimental (investigational) vaccine against HCV when injected into the arm of healthy adults.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Detaljert beskrivelse

The Hepatitis C Virus (HCV) continues to be a significant public health threat, infecting 58 million people worldwide and over 250,000 Canadians. The virus disproportionately affects marginalized populations. It is a bloodborne virus that affects the liver and is most commonly spread through unsafe injection practices, sexual practices that lead to blood exposures, and unsafe health care (i.e., transfusion of contaminated blood and blood products). If left untreated, these infections progress to chronic hepatitis, liver cirrhosis (liver failure) and potentially hepatocellular carcinoma (liver cancer) or death. Current treatments for HCV include expensive drug combinations that can cure HCV in most but do not prevent reinfection if there is another exposure. At this time, there are no vaccines available to prevent HCV and the diseases that it causes.

Studietype

Intervensjonell

Registrering (Antatt)

27

Fase

  • Fase 1

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

  • Navn: Kelly Kim, BSc, BA
  • Telefonnummer: 587-598-2336
  • E-post: hcv@ualberta.ca

Studiesteder

    • Alberta
      • Edmonton, Alberta, Canada, T6G 2B7
        • University of Alberta Hospital
        • Ta kontakt med:
          • Vanessa Meier-Stephenson, MD, PhD
    • Ontario
      • Ottawa, Ontario, Canada, K1H 8L6
        • Ottawa Hospital - General Campus
        • Ta kontakt med:
          • Curtis Cooper, MD, MSc
      • Toronto, Ontario, Canada, M5G 2C4
        • Toronto General Hospital - Toronto Centre for Liver Disease
        • Ta kontakt med:
          • Jordan Feld, MD, MSc

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 45 år (Voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Able to understand the purpose and the procedures involved in this study and sign the informed consent form;
  2. Non-pregnant individuals, 18-45 years of age inclusive;
  3. Individuals must agree not to become pregnant during the trial. If they are capable of pregnancy and sexually active, they must use an effective method of birth control;
  4. Non-smoker and in good general health, as determined by medical screening evaluation, performed by PI, or delegated sub-investigator no greater than 4 weeks (28 days) before the first dose in the form of medical history, clinical laboratory tests and physical examination;
  5. Agrees to reside in the geographical area for next 12 months and not intending to travel outside of Canada for at least 14 days following each study vaccine administration;
  6. Agree not to participate in any other clinical trial during the trial;
  7. Agree not to donate blood for the duration of the trial;
  8. Agree to restrain from intensive physical exercise i.e., exercise that varies significantly from an everyday exercise routine, 3 days before and after (± 3 days) administration of each dose, including each interim visit for blood sample collection;
  9. Up to date on recommended seasonal vaccines (influenza and COVID-19) at the time of study enrolment.

Exclusion Criteria:

  1. Presence of Hepatitis C antibody (HCV Ab);
  2. Presence of significant acute infection requiring systemic antibiotic treatment within the 14 days prior to each product administration;
  3. Pregnant or breast feeding (all individuals physiologically capable of pregnancy will have a negative pregnancy test result prior to each study product administered);
  4. Past significant reaction following any previous vaccination;
  5. History of hypersensitivity to any vaccine component;
  6. Presence of acute infectious disease or fever (e.g., sub-lingual temperature 38.5°C) within the five days prior to study product administration;
  7. Presence of current or suspected serious chronic diseases such as cardiac or autoimmune disease (HIV or other immunodeficiencies), insulin dependent diabetes, progressive neurological disease, severe malnutrition, acute or progressive hepatic disease, acute or progressive renal disease, psoriasis, rheumatoid arthritis, asthma, epilepsy or obsessive-compulsive disorder, skin carcinoma excluding non-spreadable skin cancers such as basal cell and squamous cell carcinoma;
  8. Evidence and/or any history of leukaemia, lymphoma, or neoplasm;
  9. Presence or suspicion of impaired immune system function. Currently receiving or having within the past three years received immunosuppressive therapy, including systemic steroids, ACTH or inhaled steroids in dosages that are associated with hypothalamic-pituitary-adrenal axis suppression, such as 1mg/kg/day of prednisone or its equivalent or chronic use of inhaled high potency corticosteroids [budesonide 800 µg per day or fluticasone 750 µg];
  10. Received blood, blood products or a parenteral immunoglobulin preparation in the past 12 weeks;
  11. Evidence of bleeding diathesis or any condition that may be associated with a prolonged bleeding time;
  12. Known inherited genetic anomaly (known as cytogenic disorders) e.g., Down's syndrome;
  13. Evidence of any condition that, in the opinion of the clinical investigator, might interfere with the evaluation of the study objectives or pose excessive risks to participants;
  14. Clinically significant abnormal laboratory as assessed by the trial physician.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Forebygging
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Trippel

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: AVIHepC1

Contains two components: (1) GMP-Grade E1E2 heterodimer envelope protein (4.5µg); and (2) GMP-Grade SLA-SE adjuvant.

Intramuscular injection administered at 0, 4, and 24 weeks.

Placebo komparator: Normal Saline

0.9% sodium chloride

*Only applicable for double-blinded randomized component of the study. Intramuscular injection administered at 0, 4, and 24 weeks.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Adverse Events
Tidsramme: 6 months after last dose of vaccine is administered

Safety is the primary outcome. Clinical symptoms and signs, standard laboratory parameters (hematological and biochemical), and ancillary data will be collected and assessed for safety monitoring throughout the study which will also be reviewed by the Data Safety Monitoring Board (DSMB) accordingly.

6 months after last dose of vaccine is administered

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Immunogenicity
Tidsramme: 6 months after last dose of vaccine is administered

Antibody titres: Samples of sera and PBMCs will be collected from the participants prior to each injection and at the scheduled clinic visits. The titre of vaccine specific antibodies will be determined using ELISA. The presence of vaccine-specific antibodies in all participants in the study will be monitored.

6 months after last dose of vaccine is administered
Immunogenicity
Tidsramme: 6 months after last dose of vaccine is administered

Assessment for pan-genotypic neutralizing antibodies in vitro: Sera will be tested for neutralization capacity via a panel of infectious cell-culture-propagated HCV genotypes.

6 months after last dose of vaccine is administered
Immunogenicity
Tidsramme: 6 months after last dose of vaccine is administered

T cell responses: T cell responses generated by vaccinees pre- and post-vaccination will be measured by flow cytometry.

6 months after last dose of vaccine is administered

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Etterforskere

  • Hovedetterforsker: Michael Houghton, PhD, University of Alberta
  • Studiestol: Vanessa Meier-Stephenson, MD, PhD, University of Alberta
  • Hovedetterforsker: Lorne Tyrrell, MD, PhD, University of Alberta
  • Hovedetterforsker: Jordan Feld, MD, MSc, University of Toronto
  • Hovedetterforsker: Curtis Cooper, MD, MSc, University of Ottawa

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

15. januar 2027

Primær fullføring (Antatt)

1. juli 2027

Studiet fullført (Antatt)

1. januar 2028

Datoer for studieregistrering

Først innsendt

14. november 2025

Først innsendt som oppfylte QC-kriteriene

14. november 2025

Først lagt ut (Faktiske)

19. november 2025

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

25. september 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

24. september 2026

Sist bekreftet

1. september 2026

Mer informasjon

Begreper knyttet til denne studien

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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