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Experimental hepatitis c vaccine enters first human safety trial

NCT ID NCT07237282

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage trial will test an experimental vaccine against hepatitis C (HCV) in 27 healthy adults. The main goal is to see if the vaccine is safe and to measure the immune response it triggers. Participants will receive three shots over 24 weeks and be closely monitored for side effects.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
AVIHepC1 (experimental HCV vaccine with adjuvant)
What this could lead to
If successful, this could pave the way for a vaccine to prevent hepatitis C infection.
What could go wrong
This is a very early phase 1 trial with only 27 healthy adults, focused on safety. It is too soon to know if the vaccine will actually prevent infection.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 27 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Aug 2026

An estimate. Start dates often move.

Expected to finish

Jul 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 45 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Ottawa Hospital - General Campus

    Ottawa, Ontario, K1H 8L6, Canada

  • Toronto General Hospital - Toronto Centre for Liver Disease

    Toronto, Ontario, M5G 2C4, Canada

  • University of Alberta Hospital

    Edmonton, Alberta, T6G 2B7, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.