A Safety and Immunogenicity Trial With an Adjuvanted Tuberculosis (TB) Subunit Vaccine in Purified Protein Derivative (PPD) Positive Volunteers (THYB-02)

January 18, 2013 updated by: Statens Serum Institut

A Safety and Immunogenicity Phase 1 Trial With an Adjuvanted TB Subunit Vaccine (Ag85B-ESAT-6 + IC31)Administered in PPD Positive Volunteers at 0 and 2 Months

The purpose of this study is to evaluate the safety profile of an adjuvanted TB subunit vaccine administered at 0 and 2 months.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • 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

  • Netherlands
    • RC Leiden
      • Leiden, RC Leiden, Netherlands, 2300
        • Leiden University Medical Centre

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

18 years to 55 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male and female between 18 and 55 years old
  • BCG group: Known to be BCG-vaccinated over 2 years before, PPD positive (range 6-15 mm or any documented value between 6-15 mm on medical file in the past), with no active, chronic or past TB disease as confirmed by chest X ray, negative QuantiFERON-TB Gold In Tube test and negative 6-day lymphocyte tests.
  • Infection group: Known to be treated for latent TB, PPDpositive (equal or over 10 mm or documented equal or over 10 mm positive on medical file in the past), previously TB infected but with no active disease confirmed by chest X ray, may have received chemoprophylaxis but with no TB treatment/chemoprophylaxis within the preceding 2 years, positive QuantiFERON-TB Gold In Tube test and/or positive 6-day lymphocyte test.
  • Healthy based on medical examination/history at the inclusion
  • Signed informed consent
  • Prepared to grant authorized persons access to the medical records
  • The volunteer is likely to comply with instructions

Exclusion Criteria:

  • Granulomatous disease (by chest X-ray)
  • Vaccinated with live vaccine 3 months before first vaccination
  • Administration of immune modulating drugs (steroids, immunosuppressive drugs or immunoglobulins) 3 months before the first vaccination
  • HBV, HCV or HIV sero-positive
  • Participation in other clinical trials
  • Known hypersensitivity to any of the vaccine components
  • Laboratory parameters outside of normal range judged by PI to be clinically relevant
  • Pregnant women/planned pregnancy and/or breastfeeding within the trial period

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: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Latent TB infection group
The latent TB group will receive two injections of 50 microgram antigen + adjuvant (500 nmol KLK + 20 nmol ODN1a)two months apart.
Biological: 50 microg. antigen + adjuvant (500 nmol KLK + 20 nmol ODN1a)
o,5 mL suspension for injection x 2 with 2 months interval
Other Names:
  • Antigen H1 + adjuvant IC31
Experimental: BCG vaccinated group
The BCG vaccinated group will receive two vaccinations of 50 microgram antigen + adjuvant (500 nmol KLK + 20 nmol ODN1a)two months apart
Biological: 50 microg. antigen + adjuvant (500 nmol KLK + 20 nmol ODN1a)
o,5 mL suspension for injection x 2 with 2 months interval
Other Names:
  • Antigen H1 + adjuvant IC31

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Physical examination. Local adverse events.Systemic adverse events. Laboratory safety tests including urine safety tests.
Time Frame: From first vaccination until 8 months after the first vaccination
From first vaccination until 8 months after the first vaccination

Secondary Outcome Measures

Outcome Measure
Time Frame
Detection by ELISPOT of IFNgamma spot-forming cells in PBMCs. Detection by ELISA of IFNgamma production in supernatants of PBMC. Detection by ELISA of IgG antibodies in serum/plasma. Detection by Elisa of TNFalfa and IFNgamma in serum
Time Frame: From first vaccination until 8 months after first vaccination
From first vaccination until 8 months after first vaccination

Collaborators and Investigators

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

Sponsor

Statens Serum Institut

Investigators

  • Principal Investigator: Jaap van Dissel, MD, Prof., Leiden University Medical Centre

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, 2007

Primary Completion (Actual)

June 1, 2009

Study Completion (Actual)

June 1, 2009

Study Registration Dates

First Submitted

June 26, 2009

First Submitted That Met QC Criteria

June 26, 2009

First Posted (Estimate)

June 29, 2009

Study Record Updates

Last Update Posted (Estimate)

January 21, 2013

Last Update Submitted That Met QC Criteria

January 18, 2013

Last Verified

January 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • THYB-02

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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