Trial to Evaluate Immunogenicity Non-Inferiority, Safety and Lot-to-Lot Consistency of Biovac OCV-S to Euvichol®-Plus

NCT ID: NCT07304284

Last Updated: 2025-12-26

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

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

2824 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-31

Study Completion Date

2027-02-28

Brief Summary

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This Phase I/III clinical trial is intended to establish the immunogenicity and safety profile of Biovac OCV-S compared to available WHO pre-qualified vaccine Euvichol®-Plus in healthy adults and children and in adult people living with HIV (PLWH). The lot-to-lot consistency of Biovac OCV-S in healthy adults will also be determined.

Detailed Description

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This is a phase I/III, multicenter, observer-blinded, age-descending, randomized, active controlled trial being conducted in South Africa to evaluate the immunogenicity non-inferiority and safety of Biovac OCV-S compared to Euvichol®-Plus among adults and children, and to evaluate the lot-to-lot consistency of Biovac OCV-S in adults.

A total of 2824 participants aged 1-45 years will be enrolled in the study in 4 cohorts: cohort A (1272 healthy adults aged 18-45 years), cohort AA (160 people living with HIV (PLWH) aged 18-45 years), cohort B (696 healthy children aged 6-17 years), and cohort C (696 healthy children aged 1-5 years). Participants in cohort A will be randomized into 4 arms to receive either one of the 3 lots of Biovac OCV-S or to receive the comparator Euvichol®-Plus in 1:1:1:1 ratio. Participants in cohorts AA, B and C will each be randomized into 2 arms to receive either Biovac OCV-S or Euvichol®-Plus in 3:1 ratio.

Each of the study participants will receive the assigned investigational product Biovac OCV-S or Euvichol®-Plus given orally in 2 doses at 2 weeks interval and will be followed up for safety and immunogenicity at specific time points. Each participant will be in the study for approximately 27 weeks.

Conditions

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Cholera Vaccination

Keywords

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Biovac OCV-S Euvichol®-Plus IVI BIOVAC OCV-S 001 International Vaccine Institute (IVI) Biovac Institute South African Medical Research Council (SAMRC)

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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Arm A1

Biovac-OCV (Lot 1), HIV Negative Group, 18-45 years

Group Type EXPERIMENTAL

Experimental: Biovac OCV-S (inactivated whole-cell monovalent (O1) oral cholera vaccine)

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm A2

Biovac-OCV (Lot 2), HIV Negative Group, 18-45 years

Group Type EXPERIMENTAL

Experimental: Biovac OCV-S (inactivated whole-cell monovalent (O1) oral cholera vaccine)

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm A3

Biovac-OCV (Lot 3), HIV Negative Group, 18-45 years

Group Type EXPERIMENTAL

Experimental: Biovac OCV-S (inactivated whole-cell monovalent (O1) oral cholera vaccine)

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm A4

Euvichol®-Plus, HIV Negative Group, 18-45 years

Group Type ACTIVE_COMPARATOR

Active Comparator, Euvichol®-Plus

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm B1

Biovac-OCV, HIV Negative Group, 6-17 years

Group Type EXPERIMENTAL

Experimental: Biovac OCV-S (inactivated whole-cell monovalent (O1) oral cholera vaccine)

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm B2

Euvichol®-Plus, HIV Negative Group, 6-17 years

Group Type ACTIVE_COMPARATOR

Active Comparator, Euvichol®-Plus

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm C1

Biovac-OCV, HIV Negative Group, 1-5 years

Group Type EXPERIMENTAL

Experimental: Biovac OCV-S (inactivated whole-cell monovalent (O1) oral cholera vaccine)

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm C2

Euvichol®-Plus, HIV Negative Group, 1-5 years

Group Type ACTIVE_COMPARATOR

Active Comparator, Euvichol®-Plus

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm AA1

Biovac-OCV, People living with HIV, 18-45 years

Group Type EXPERIMENTAL

Experimental: Biovac OCV-S (inactivated whole-cell monovalent (O1) oral cholera vaccine)

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Arm AA2

Euvichol®-Plus, People living with HIV, 18-45 years

Group Type ACTIVE_COMPARATOR

Active Comparator, Euvichol®-Plus

Intervention Type BIOLOGICAL

Two doses (1.5mL) at two weeks interval given orally.

Interventions

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Experimental: Biovac OCV-S (inactivated whole-cell monovalent (O1) oral cholera vaccine)

Two doses (1.5mL) at two weeks interval given orally.

Intervention Type BIOLOGICAL

Active Comparator, Euvichol®-Plus

Two doses (1.5mL) at two weeks interval given orally.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

1. Healthy participants aged 1 to 45 years at consent
2. Participants/Parent(s)/Legally Authorized Representative (LAR) willing to provide informed consent/assent
3. HIV negative
4. Not pregnant or lactating


1. PLWH adults aged 18 to 45 years at consent
2. Participants on anti-retroviral (ARV) therapy with CD4 counts \>350 and viral loads that are undetectable.
3. Not pregnant or lactating

Exclusion Criteria

1. Known history or allergy to investigational vaccine components, other preventive vaccines, or any other allergies
2. Individuals with major congenital abnormalities
3. Known history of immune function disorders including immunodeficiency diseases (known HIV infection in healthy participant cohorts) or other immune function disorders (all cohorts).
4. Use of systemic steroids within past 6 months (\>10 mg/day prednisone equivalent for periods exceeding 2 consecutive weeks), or receive chemotherapy, radiation therapy or other immunosuppressive drugs within the past 6 months.
5. Behavioral or cognitive impairment, chronic substance abuse, or psychiatric disease or neurological disorders.
6. Individuals with a known bleeding disorder.
7. Receipt of blood, blood-derived products, or immunoglobulin products in the past 3 months.
8. Individuals who have received other vaccines from 4 weeks prior to or within 4 weeks after any dose of the investigational product.
9. Individuals with active or previous Vibrio cholerae infection.
10. Individuals with receipt of a cholera vaccine in the past 5 years.
Minimum Eligible Age

1 Year

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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BioVac

UNKNOWN

Sponsor Role collaborator

Medical Research Council, South Africa

OTHER

Sponsor Role collaborator

International Vaccine Institute

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Tarun Saluja, MD

Role: PRINCIPAL_INVESTIGATOR

International Vaccine Institute

Glenda Gray, MD

Role: PRINCIPAL_INVESTIGATOR

Medical Research Council, South Africa

Julia Lynch, MD

Role: STUDY_DIRECTOR

International Vaccine Institute

Locations

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Synergy Biomed Research Institute

Durban, Eastern Cape, South Africa

Site Status NOT_YET_RECRUITING

Perinatal HIV Research Unit (PHRU)

Johannesburg, Gauteng, South Africa

Site Status RECRUITING

Wits Vaccines & Infectious Diseases Analytics (VIDA) Research Unit

Johannesburg, Gauteng, South Africa

Site Status NOT_YET_RECRUITING

SAMRC Chatworth CRS

Durban, KwaZulu-Natal, South Africa

Site Status RECRUITING

SAMRC Isipingo CRS

Durban, KwaZulu-Natal, South Africa

Site Status NOT_YET_RECRUITING

Countries

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South Africa

Central Contacts

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Dr. Naveena D'Cor Project Technical Lead / Study Medical Monitor, MD

Role: CONTACT

Phone: +82 2 8811 000

Email: [email protected]

Beverley Cowper Medical Consultant, MD

Role: CONTACT

Email: [email protected]

Facility Contacts

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Mookho Malahleha Principal Investigator

Role: primary

Ravindre Panchia Principal Investigator

Role: primary

Christopher Stavrou Principal Investigator

Role: primary

Logashvari Naidoo Principal Investigator

Role: primary

Vimla Naicker Principal Investigator

Role: primary

Other Identifiers

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IVI BIOVAC OCV-S 001

Identifier Type: -

Identifier Source: org_study_id