Dose-escalation Safety and Immunogenicity Study to Compare MTBVAC to BCG in Newborns With a Safety Arm in Adults (MTBVAC-Ph1b)

April 30, 2018 updated by: Biofabri, S.L

A Randomized, Double-blind, Dose-escalation Clinical Trial of the Safety, Reactogenicity and Immunogenicity of MTBVAC Compared to BCG Vaccine SSI, in Newborns Living in a Tuberculosis Endemic Region With a Safety Arm in Adults

Randomized, controlled, double blind clinical trial in 2 stages (adult stage, infant stage). The first stage includes 18 HIV uninfected, QFT negative, BCG vaccinated, adult participants, randomized 1:1 to receive BCG Vaccine SSI or MTBVAC at equivalent dose (5x10E05 CFU/0.1mL) (n=9 in each group). Upon favourable safety review by the DSMB for all 18 adults up to day 28 after study vaccination, the second stage will commence in thirty-six (36) HIV unexposed, BCG naïve, newborn infants, randomized 1:3 to receive BCG Vaccine SSI or MTBVAC at one of three different dose levels ( (n=9 in each group).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Adult Stage:

Eighteen (18) adult participants will be recruited and randomized equally into 1 of 2 study groups (n=9 per group): MTBVAC highest dose group (approx. 5x10E05 CFU/0.1mL) or BCG SSI standard human dose (approx. 5x10E05 CFU/0.1mL).

Safety assessments will be conducted at D0, D7, D14, D28, D56, D90, and D180 post study vaccination. A diary card will be used to collect solicited local, regional, and systemic adverse event data from D0 through D14. Reactogenicity data will be collected at each study visit. Non-serious adverse events will be collected through D28. Serious adverse events will be collected during the entire study period.

Infant Stage:

Thirty-six (36) infant participants will be recruited, randomized and allocated into 4 groups of 9 participants: BCG (single dose level 2.5 x 10E05 CFU/0.05 mL); or MTBVAC at three different dose levels (lowest 2.5x10E03 CFU/0.05mL, middle 2.5x10E04 CFU/0.05mL, highest 2.5x10E05 CFU/0.05mL).

Vaccination of neonates will be staggered by cohorts on a 3 verum : 1 control basis to allow gradual evaluation of safety and reactogenicity, as follows:

Cohort 1: 9 who receive the lowest MTBVAC dose level and 3 BCG control; Cohort 2: 9 who receive the highest MTBVAC dose level and 3 BCG control; Cohort 3: 9 who receive the highest MTBVAC dose level and 3 BCG control.

All AEs and biochemical and haematological parameters (safety data) collected up until Day 28 after vaccination of the last subject of each cohort will be reviewed by DSMB to authorize progression to the next group. Safety assessments will be conducted at D0, D7, D14, D28, D70, D90, D180 and D360 post study vaccination. A diary card will be used to collect solicited local, regional, and systemic adverse event data from D0 through D14. Reactogenicity data will be collected at each study visit. Non-serious adverse events will be collected through D28. Serious adverse events will be collected during the entire study period. Unscheduled follow-up face-to-face visits will be performed as needed for safety and adverse event management.

Study Type

Interventional

Enrollment (Actual)

54

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • South Africa
    • Western Cape
      • Worcester, Western Cape, South Africa, 6850
        • South African Tuberculosis Vaccine Initiative, Brewelskloof Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

1 day to 50 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

Adult stage:

Inclusion criteria:

  1. Male or female, age 18 to 50 years
  2. Written informed consent, including permission for access to medical records and an HIV test.
  3. Available for study follow up and display a willingness and capacity to comply to study procedures.
  4. In good general health, as assessed by medical history and a focused physical examination.
  5. HIV test (rapid test, ELISA, or PCR) negative
  6. Quantiferon®-TB Gold (Cellestis) test for latent TB infection negative within 3 weeks of enrolment
  7. BCG vaccination at birth as confirmed by history or the presence of a BCG scar
  8. In the case of female participants, a negative urine or serum pregnancy test at enrolment, not lactating, and willingness to use an acceptable method of contraception to avoid pregnancy for the duration of the study

Infant Stage:

Inclusion Criteria:

  1. Male or female neonates within 96 hours of birth.
  2. Written informed parental consent, including permission to access medical records and results of antenatal HIV tests.
  3. Infant participants and their caregivers available for study follow-up and display the willingness and capacity to comply with study procedures.
  4. Neonates must be in good general health as assessed by antenatal history, delivery records, and focused physical examination.
  5. Birth weight more than or equal to 2500 grams.
  6. Apgar score at 5 minutes more than or equal to 7.
  7. A maternal HIV test result (rapid test, ELISA or PCR) taken during pregnancy must be available, documented and negative.
  8. Estimated gestational age more than or equal to 38 weeks

Exclusion Criteria:

Adult stage Exclusion criteria

  1. A history or evidence of an acute or chronic medical or surgical condition likely to affect the safety, reactogenicity, or immunogenicity of the investigational vaccine
  2. Skin condition, bruising or birth mark at the intended injection site.
  3. History or evidence of previous or current active TB disease
  4. History of a household contact with active TB disease who has received less than 2 months treatment

Infant Stage Exclusion criteria:

  1. Infant must not have received routine BCG vaccination prior to enrolment.
  2. Antenatal, intrapartum, or postnatal medical or surgical condition that may affect the safety, reactogenicity, or immunogenicity of the investigational vaccine.
  3. Maternal HIV test (rapid test, ELISA or PCR) not performed antenatally, HIV test results not available, or HIV test result known positive.
  4. Maternal or other household contact with newly diagnosed or incompletely treated active TB disease.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: MTBVAC Group 1
Intervention: MTBVAC live vaccine (low dose)
Biological: MTBVAC
Live-attenuated tuberculosis vaccine
Experimental: MTBVAC Group 2
Intervention: MTBVAC live vaccine (middle dose)
Biological: MTBVAC
Live-attenuated tuberculosis vaccine
Experimental: MTBVAC Group 3
Intervention: MTBVAC live vaccine (high dose)
Biological: MTBVAC
Live-attenuated tuberculosis vaccine
Active Comparator: BCG Control Group
Intervention: commercially available BCG live vaccine
Biological: BCG
Commercially available live-attenuated tuberculosis vaccine

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Safety and reactogenicity in infants and adults: includes injection site and systemic and regional adverse events, solicited and unsolicited. A diary card will be for solicited local, regional, and systemic adverse event data.
Time Frame: Six (6) months post-study vaccination
Six (6) months post-study vaccination

Secondary Outcome Measures

Outcome Measure
Time Frame
Primary immunogenicity analysis (in infants only): Measure of frequencies and co-expression patterns of CD4 and CD8 T cells expressing specific cytokines in whole blood.
Time Frame: Six (6) months post-study vaccination
Six (6) months post-study vaccination

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Biofabri, S.L

Collaborators

South African Tuberculosis Vaccine Initiative
TuBerculosis Vaccine Initiative
Triclinium Clinical Trial Project Management (Pty) Ltd.
Universidad de Zaragoza

Investigators

  • Principal Investigator: Michele Tameris, MD, South African Tuberculosis Vaccine Initiative

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2015

Primary Completion (Actual)

September 1, 2016

Study Completion (Actual)

March 1, 2018

Study Registration Dates

First Submitted

March 15, 2016

First Submitted That Met QC Criteria

March 31, 2016

First Posted (Estimate)

April 6, 2016

Study Record Updates

Last Update Posted (Actual)

May 1, 2018

Last Update Submitted That Met QC Criteria

April 30, 2018

Last Verified

April 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MTBVAC-02

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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