Trial to Evaluate Safety and Immunogenicity of a Vaccine Against HCMV

NCT ID: NCT02798692

Last Updated: 2018-04-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

54 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-06-30

Study Completion Date

2018-03-31

Brief Summary

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The objectives of this first-in-human is to evaluate the safety and the immunogenicity of three administrations of a bivalent vaccine candidate against human cytomegalovirus, at three different dose levels.

Detailed Description

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Hookipa Biotech AG is developing a replication-deficient lymphocytic choriomeningitis virus (rLCMV) vector platform. HB-101 is a bivalent vaccine containing two recombinant, replication-deficient lymphocytic choriomeningitis virus (rLCMV) vectors, one expressing the pp65 protein of the human cytomegalovirus (HCMV) and one expressing the gB protein of human cytomegalovirus (HCMV).

This Phase 1 will enroll three successive cohorts of 18 healthy volunteers. Each cohort will receive either a low dose, a middle dose or a high dose of the vaccine (n=14 volunteers), or placebo (n=4). A DSMB will review the safety data for the low dose cohort, before progressing to the middle, and so before high dose. Eight DSMB meetings have been planned for the whole study.

The subjects will be followed up to 12 months post first administration.

Conditions

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Cytomegalovirus Infection

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Low dose HB-101 group

Intervention:Three administrations of a low dose of HB-101

Group Type ACTIVE_COMPARATOR

Low dose HB-101

Intervention Type BIOLOGICAL

Three intra muscular administrations at Day 0, Month 1 and Month 3

Medium dose HB-101 group

Intervention:Three administrations of a middle dose of HB-101.

Group Type ACTIVE_COMPARATOR

Medium dose HB-101

Intervention Type BIOLOGICAL

Three intra muscular administrations at Day 0, Month 1 and Month 3

High dose HB101 group

Intervention:Three administrations of a high dose of HB-101.

Group Type ACTIVE_COMPARATOR

High dose HB-101

Intervention Type BIOLOGICAL

Three intra muscular administrations at Day 0, Month 1 and Month 3

Placebo group

Intervention:Three administrations of placebo (diluent)

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type BIOLOGICAL

Three intra muscular administrations at Day 0, Month 1 and Month 3. The diluent is used as placebo.

Interventions

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Low dose HB-101

Three intra muscular administrations at Day 0, Month 1 and Month 3

Intervention Type BIOLOGICAL

Medium dose HB-101

Three intra muscular administrations at Day 0, Month 1 and Month 3

Intervention Type BIOLOGICAL

High dose HB-101

Three intra muscular administrations at Day 0, Month 1 and Month 3

Intervention Type BIOLOGICAL

Placebo

Three intra muscular administrations at Day 0, Month 1 and Month 3. The diluent is used as placebo.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Signed informed consent
* Male or female, aged 18-45 years, in good health.
* Negative for HCMV
* Body mass index between 19 and 32 kg/m²
* Willing to forego receipt of other routine vaccinations (with the exception of seasonal influenza vaccination) for five months after study entry.
* For female volunteers: use of effective birth control for at least 2 months prior to study entry and willing to use effective birth control measures up to the Month 12 visit
* Comply with the requirements of this protocol (e.g. return for follow-up visits), as judged by the Investigator.

Exclusion Criteria

* Works as a childcare provider.
* Pregnant or breastfeeding woman.
* Any screening safety laboratory value that is 2 times above the upper limit of normal value.
* Any confirmed or suspected immunodeficiency or autoimmune disorder.
* Treatment with any chronic immunosuppressive medication or other immuno-modifying drugs within 6 months prior to study entry. However, inhaled and topical steroids are allowed.
* Any vaccination other than for seasonal influenza within 3 months prior to study entry.
* Previous vaccination with an investigational HCMV vaccine.
* Receipt of blood, blood products and/or immunoglobulins within 3 months prior to study entry.
* History of severe allergic reactions and /or anaphylaxis
* Allergy to any component of the vaccine preparation.
* Expected to be unavailable to complete study follow up.
* Tested positive for HIV, HBsAg and/or anti-HCV.
* Participating in another clinical trial.
* Subject with a rash, dermatological condition or tattoos in the area of the injection site, as these may interfere with administration site reaction rating.
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Centre for Vaccinology Ghent - CEVAC

UNKNOWN

Sponsor Role collaborator

Hookipa Biotech GmbH

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Geert Leroux-Roels, MD PhD Prof

Role: PRINCIPAL_INVESTIGATOR

UZ Gent

Locations

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Center for Vaccinology Ghent

Ghent, East Flanders, Belgium

Site Status

Countries

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Belgium

Other Identifiers

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H-100-001

Identifier Type: -

Identifier Source: org_study_id

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