Study to Evaluate Safety, Tolerability, and Immunogenicity of Candidate Human Cytomegalovirus Vaccine in Healthy Adults

NCT ID: NCT02826798

Last Updated: 2020-04-20

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

128 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-06-23

Study Completion Date

2017-08-24

Brief Summary

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The purpose of this study is to compare the safety and effectiveness of four different doses of cytomegalovirus vaccines in healthy adults.

Detailed Description

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This study is designed to assess safety and immunogenicity of four dose formulations of cytomegalovirus (CMV) vaccine (0.5 μg gB content with aluminum phosphate (alum), 1.0 μg glycoprotein B (gB) content with alum, 2.0 μg gB content with alum, or 1.0 μg gB content (without alum) as compared with placebo in approximately 125 healthy CMV-seronegative volunteer participants between 18 and 40 years of age.

Conditions

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Cytomegalovirus Infections

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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VBI-1501A: 0.5µg with adjuvant

0.5µg CMV vaccine with adjuvant

Group Type EXPERIMENTAL

VBI-1501A 0.5 μg

Intervention Type DRUG

VBI-1501A: 0.5 μg with alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

VBI-1501A: 1.0µg with adjuvant

1.0µg CMV vaccine with adjuvant

Group Type EXPERIMENTAL

VBI-1501A 1.0 μg

Intervention Type DRUG

VBI-1501A: 1.0 μg with alum with alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

VBI-1501A: 2.0 µg with adjuvant

2.0 µg CMV vaccine with adjuvant

Group Type EXPERIMENTAL

VBI-1501A 2.0 μg

Intervention Type DRUG

VBI-1501A: 2.0 μg with alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

VBI-1501: 1.0µg without adjuvant

1.0µg CMV vaccine without adjuvant

Group Type EXPERIMENTAL

VBI-1501 1.0 μg

Intervention Type DRUG

VBI-1501: 1.0 μg without alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

Placebo

Buffer/sucrose used for VBI-1501 suspension

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

buffer/sucrose used for VBI-1501 suspension- administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168.

Interventions

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VBI-1501A 0.5 μg

VBI-1501A: 0.5 μg with alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

Intervention Type DRUG

VBI-1501A 1.0 μg

VBI-1501A: 1.0 μg with alum with alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

Intervention Type DRUG

VBI-1501A 2.0 μg

VBI-1501A: 2.0 μg with alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

Intervention Type DRUG

VBI-1501 1.0 μg

VBI-1501: 1.0 μg without alum-administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168

Intervention Type DRUG

Placebo

buffer/sucrose used for VBI-1501 suspension- administered as a 0.5 mL intramuscular injection on Days 0, 56, and 168.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Generally healthy adult female and male 18 to 40 years of age, inclusive;
2. Serologically confirmed to be CMV seronegative at screening;
3. Female volunteers must agree to use an adequate contraception method as deemed appropriate by the investigator
4. Sign an informed consent document indicating understanding of the purpose and procedures required for the study and willingness to participate in the study

Exclusion Criteria

1. History of or current clinically significant medical illness or any other illness that in the opinion of the investigator interferes with the interpretation of the study results
2. Clinically significant abnormal physical examination, vital signs, or clinically significant abnormal values for hematology, clinical chemistry or urinalysis at screening as determined by the investigator
3. Previous receipt of any cytomegalovirus vaccine
4. History of allergic reactions or anaphylactic reaction to any vaccine component
5. Pregnant or breastfeeding or plans to conceive from two weeks before the study start through six months after the last dose of study vaccine
6. Known or suspected impairment of immunological function, including but not limited to autoimmune diseases, splenectomy, or HIV/AIDS
7. Chronic administration (defined as more than 14 days in total) of immune-suppressive or other immune-modifying drug with six months prior to the product dose (for corticosteroids, this is defined as prednisone ≥20 mg/day or equivalent). Inhaled and topical steroids are allowed
8. Participation in another clinical study within 30 days or plans to participate in another treatment based clinical study during the conduct of the present study
9. Any skin abnormality or tattoo that would limit post-vaccination injection site assessment
10. Any history of cancer requiring chemotherapy or radiation within 5 years of randomization or current disease
11. Are family members of study center staff
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Clinical Trial Data Services, LLC

UNKNOWN

Sponsor Role collaborator

VBI Vaccines Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Joanne Langley, MD

Role: PRINCIPAL_INVESTIGATOR

IWK Health Centre

Locations

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Vaccine Evaluation Center

Vancouver, British Columbia, Canada

Site Status

Canadian Center for Vaccinology; IWK Health Centre

Halifax, Nova Scotia, Canada

Site Status

McGill University Health Centre - Vaccine Study

Pierrefonds, Quebec, Canada

Site Status

Countries

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Canada

References

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Reference Type DERIVED
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Other Identifiers

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VBI-1501

Identifier Type: -

Identifier Source: org_study_id

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