VAXCHORA Pediatric Study to Assess Safety and Immunogenicity

NCT ID: NCT03220737

Last Updated: 2023-06-28

Study Results

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

550 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-07-21

Study Completion Date

2020-03-06

Brief Summary

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VAXCHORA (Cholera Vaccine, Live, Oral) is a vaccine indicated for active immunization against disease caused by Vibrio cholerae serogroup O1. VAXCHORA is approved for use in adults 18 through 64 years of age travelling to cholera-affected areas. The primary goals of this Phase 4 study are to evaluate the safety and immunogenicity of a single dose of VAXCHORA (1 x 10e9 cfu/dose) in children ages 2 years to \<18 years of age in developed countries.

Detailed Description

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This is a randomized, placebo-controlled, double-blind, single-crossover study with three age cohorts and two treatment groups within each cohort.

Conditions

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Cholera (Disorder)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

This is a randomized, placebo-controlled, double-blind, single-crossover study with three age cohorts and two treatment groups within each cohort.

The main study consists of a screening period of 30 days, a treatment period from Day 1 to Day 29, and a follow-up period through Day 181. Cohort 1 has an optional sub-study consisting of a long-term follow-up period through Day 730.
Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
The study will be conducted as a double-blind study through 181, where neither the sponsor, the statistical team, study volunteer subjects, nor clinical site personnel (except for the unblinded administration staff) will know subjects' treatment assignment. Once each subject has reached their Day 181 visit they will be individually unblinded.

Study Groups

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Cohort 1 (active, 12-17 yrs)

Subjects aged 12 - 17 were administered a 100 mL oral dose of Vaxchora vaccine on Day 1, and had study visits on Day 11, 29, 91 and 181. Cohort 1 subjects that continued in the long-term follow-up sub-study had visits on days 365, 547 and 730.

Group Type EXPERIMENTAL

VAXCHORA (Cholera Vaccine, Live, Oral)

Intervention Type BIOLOGICAL

VAXCHORA (Cholera Vaccine, Live, Oral) is a live, attenuated bacterial vaccine suspension for oral administration containing the V. cholerae strain CVD 103-HgR.

Cohort 1 (placebo, 12 - 17 yrs)

Subjects aged 12 - 17 were administered a 100 mL oral dose of 0.9% saline on Day 1, and had study visits on Day 11, 29, 91 and 181.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

Placebo control for this study is normal (0.9%) saline.

Cohort 2 (active, 6 - 11 yrs)

Subjects aged 6 - 11 were administered a 100 mL oral dose of Vaxchora vaccine on Day 1, and had study visits on Day 11, 29, 91 and 181.

Group Type EXPERIMENTAL

VAXCHORA (Cholera Vaccine, Live, Oral)

Intervention Type BIOLOGICAL

VAXCHORA (Cholera Vaccine, Live, Oral) is a live, attenuated bacterial vaccine suspension for oral administration containing the V. cholerae strain CVD 103-HgR.

Cohort 2 (placebo, 6 - 11 yrs)

Subjects aged 6 - 11 were administered a 100 mL oral dose of 0.9% saline on Day 1, and had study visits on Day 11, 29, 91 and 181.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

Placebo control for this study is normal (0.9%) saline.

Cohort 3 (active, 2 - 5 yrs)

Subjects aged 2 - 5 were administered a 50 mL oral dose of Vaxchora vaccine on Day 1, and had study visits on Day 11, 29, 91 and 181.

Group Type EXPERIMENTAL

VAXCHORA (Cholera Vaccine, Live, Oral)

Intervention Type BIOLOGICAL

VAXCHORA (Cholera Vaccine, Live, Oral) is a live, attenuated bacterial vaccine suspension for oral administration containing the V. cholerae strain CVD 103-HgR.

Cohort 3 (placebo, 2 - 5 yrs)

Subjects aged 2-5 were administered a 50 mL oral dose of 0.9% saline on Day 1, and had study visits on Day 11, 29, 91 and 181.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

Placebo control for this study is normal (0.9%) saline.

Historical Control: Adult Bridging Population

This arm consists of historical data from Vaxchora vaccine subjects from study PXVX-VC-200-004. The data was included in study PXVX-VC-200-006 as a comparator bridging population for the Day 11 seroconversion. NCT02094586 PubMed ID:29317118

Group Type OTHER

VAXCHORA (Cholera Vaccine, Live, Oral)

Intervention Type BIOLOGICAL

VAXCHORA (Cholera Vaccine, Live, Oral) is a live, attenuated bacterial vaccine suspension for oral administration containing the V. cholerae strain CVD 103-HgR.

Interventions

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VAXCHORA (Cholera Vaccine, Live, Oral)

VAXCHORA (Cholera Vaccine, Live, Oral) is a live, attenuated bacterial vaccine suspension for oral administration containing the V. cholerae strain CVD 103-HgR.

Intervention Type BIOLOGICAL

Placebo

Placebo control for this study is normal (0.9%) saline.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Male or Female
* Between 2 and \<18 years of age on Day 1
* In general good health
* Able and willing to provide informed assent for study participation
* Primary caregiver is able and willing to provide informed consent for study participation
* (for females of childbearing potential) Using an acceptable method of contraception through Day 29

Exclusion Criteria

* Current acute gastrointestinal illness or loose stools within 3 days of Day 1 visit
* Current acute febrile illness
* History of cholera infection
* History of cholera vaccination
* History of severe allergic reaction (e.g. anaphylaxis) to any ingredient of VAXCHORA
* Congenital or acquired immunodeficiency
* Pregnancy (for females of childbearing potential)
* Any other condition that, in the opinion of the Investigator, creates an unacceptable risk to the subject
* Any other condition that, in the opinion of the Investigator, will interfere with the conduct of the study or the validity of the data
* Duration of \>2 weeks of abnormal stool pattern, defined as \<3 stools per week or \>2 stools per day in the past 6 months
* Regular use of laxatives in the past 6 months
* History of enterotoxigenic E. coli infection
* Travel to cholera-endemic area in the previous 5 years
* Nursing/Breastfeeding
* Received or plans to receive the following from 14 days prior to the study vaccination through 11 days after vaccination: Any other licensed vaccines, antibiotics, or chloroquine
* Received or plans to receive any other investigational agent throughout the main study (Day 181)
Minimum Eligible Age

2 Years

Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Emergent BioSolutions

INDUSTRY

Sponsor Role collaborator

Bavarian Nordic

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Paul Andre de Lame, MD

Role: STUDY_DIRECTOR

Emergent BioSolutions

Locations

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Emory University

Atlanta, Georgia, United States

Site Status

Johnson County Clin-Trials, Inc.

Lenexa, Kansas, United States

Site Status

Heartland Research Associates, LLC

Wichita, Kansas, United States

Site Status

University of Kentucky

Lexington, Kentucky, United States

Site Status

Boston Medical Center

Boston, Massachusetts, United States

Site Status

The Center for Pharmaceutical Research

Kansas City, Missouri, United States

Site Status

Rochester Clinical Research, Inc.

Rochester, New York, United States

Site Status

Aventiv Research Inc.

Columbus, Ohio, United States

Site Status

Coastal Carolina Research Center

Mt. Pleasant, South Carolina, United States

Site Status

Clinical Research Associates, Inc.

Nashville, Tennessee, United States

Site Status

Countries

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United States

References

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McCarty JM, Gierman EC, Bedell L, Lock MD, Bennett S. Safety and Immunogenicity of Live Oral Cholera Vaccine CVD 103-HgR in Children and Adolescents Aged 6-17 Years. Am J Trop Med Hyg. 2020 Jan;102(1):48-57. doi: 10.4269/ajtmh.19-0241.

Reference Type DERIVED
PMID: 31769402 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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PXVX-VC-200-006

Identifier Type: -

Identifier Source: org_study_id

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