A Phase I Study of Safety & Immunogenicity of AERAS-456 in HIV-Neg. Adults Treated for Drug-susceptible Pulmonary TB

NCT02375698 | Completed Phase 1 Results DMC

• 1 other identifier: C-037-456
• Study Type: interventional
• Target: 22
• Locations: 1 country
• Sites: 3

Brief Summary

This is a Phase I, double-blind, randomized, placebo-controlled safety and immunogenicity study in adults who have recently been successfully treated for drug-susceptible pulmonary Tuberculosis (TB). The safety and immunogenicity profile of escalating doses of AERAS-456 in HIV-negative subjects recently treated for drug-susceptible pulmonary TB will be investigated. The study will be conducted at three sites in South Africa.

Conditions

Tuberculosis

Outcome Measures

Primary Outcomes (1)

• Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)

  Unsolicited AEs: 28 days after each vaccination Solicited AEs: 7 days after each vaccination SAEs: through Day 420 Adverse events of special interest: through Day 420

  Day 0 to Day 420

Secondary Outcomes (1)

• Mean Percent Change From Baseline of Participants' Responses to TB Antigens Ag85A and ESAT-6

  Day 224

Study Arms (2)

Gr 1 H56:IC31 5/500

EXPERIMENTAL

5ug H56 + 500 ug IC31

Biological: H56:IC31

Placebo

PLACEBO COMPARATOR

The placebo consists of 10mM Tris and 169 mM NaCl pH 7.4.

Biological: Placebo

Interventions

H56:IC31 BIOLOGICAL

H56:IC31 contains a fusion protein (referred to as H56 antigen, or H56) of 3 mycobacterial antigens (the early secreted antigens Ag85B and ESAT-6, and the latency antigen Rv2660c).

Also known as: AERAS-456

Gr 1 H56:IC31 5/500

Placebo BIOLOGICAL

The placebo consists of 10mM Tris and 169 mM NaCl pH 7.4.

Placebo

Eligibility Criteria

• Age: 18 Years - 60 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

• Is HIV-negative.
• Is male or female aged 18 through 60 years on Study Day 0.
• Has completed the written informed consent process.
• Has a diagnosis of confirmed pulmonary tuberculosis and is on standard TB treatment.
• Is confirmed to be Mtb negative by either 2 GeneXpert tests or 2 cultures from sputum samples taken on 2 different days at least 1 week apart, the first after at least 4 calendar months of TB treatment and the second day not later than after 5 calendar months (with a window of plus 1 week) of treatment.
• Agrees to complete the prescribed course of TB treatment (completion of TB treatment can occur after vaccination on Study Day 0; subject must have completed at least 5 calendar months of TB treatment on Study Day 0; if TB treatment is completed before randomization/vaccination then the time from completion of TB treatment to randomization/vaccination should not exceed 28 days).
• For female subjects: agrees to avoid pregnancy between screening and up until two months after last vaccination. Women physically capable of pregnancy (not sterilized and still menstruating or within 1 year of the last menses if menopausal) in sexual relationships with men must use an acceptable method of avoiding pregnancy from 28 days prior to administration of study vaccine up until two months after the last vaccination. Acceptable methods of avoiding pregnancy include a sterile sexual partner, sexual abstinence (not engaging in sexual intercourse), hormonal contraceptives (oral, injection, transdermal patch, or implant), vaginal ring, or intrauterine device (IUD).
• Agrees to stay in contact with the study site for the full duration of the study, providing updated contact information as necessary, and has no current plans to move from the study area during the duration of the study.

You may not qualify if:

• Evidence of a new acute illness that may compromise the safety of the subject in the study on Study Day 0.
• History of TB prior to current episode.
• TB meningitis or other forms of severe TB with high risk of a poor outcome.
• Previous medical history that may compromise the safety of the subject in the study, including but not limited to severe impairment of pulmonary function from tuberculosis infection or other pulmonary disease; chronic illness with signs of cardiac or renal failure; suspected progressive neurological disease; or uncontrolled epilepsy.
• Evidence of any systemic disease or any acute or chronic illness that may interfere with the evaluation of the safety of the vaccine.
• History or laboratory evidence of any possible immunodeficiency state.
• History of allergic disease or reactions likely to be exacerbated by any component of the study vaccine.
• Received any non-BCG TB vaccine previously.
• For female subjects: Currently pregnant, lactating/nursing, or a positive urine HCG.
• Severe anemia, defined as hemoglobin less than 10 g/dL or a hematocrit less than 30 percent based on screening hematology obtained within 7 days before randomization on Study Day 0.
• History of autoimmune disease or immunosuppression.
• Used immunosuppressive medication within 42 days before Study Day 0 (inhaled and topical corticosteroids are permitted).
• Received immunoglobulin or blood products within 42 days before Study Day 0.
• Received any investigational drug therapy or investigational vaccine within 6 months before Study Day 0, or planned participation in any other investigational study during the study period.
• Received any licensed vaccine within 28 days before Study Day 0, or receipt of any vaccine or immunomodulating agent through Study Day 63.

Sponsors & Collaborators

• Aeras: lead
• Statens Serum Institut: collaborator

Study Sites (3)

Task Clinical Research Centre

Bellville, Cape Town, South Africa

Location

University of Cape Town Lung Institute

Mowbray, Cape Town, South Africa

Location

The Aurum Institue

Johannesburg, South Africa

Location

Related Publications (1)

• Tait D, Diacon A, Borges AH, van Brakel E, Hokey D, Rutkowski KT, Hunt DJ, Russell M, Andersen PL, Kromann I, Ruhwald M, Churchyard G, Dawson R. Safety and Immunogenicity of the H56:IC31 Tuberculosis Vaccine Candidate in Adults Successfully Treated for Drug-Susceptible Pulmonary Tuberculosis: A Phase 1 Randomized Trial. J Infect Dis. 2024 Nov 15;230(5):1262-1270. doi: 10.1093/infdis/jiae170.

  PMID: 38557639 BACKGROUND

MeSH Terms

Conditions

Tuberculosis

Condition Hierarchy (Ancestors)

Mycobacterium Infections; Actinomycetales Infections; Gram-Positive Bacterial Infections; Bacterial Infections; Bacterial Infections and Mycoses; Infections

Results Point of Contact

• Title: Dr. Rodney Dawson
• Organization: UCT

rodney.dawson@uct.ac.za

27214066850

Study Officials

• Dereck Tait, MBChB

  Aeras

  STUDY DIRECTOR

Publication Agreements

• PI is Sponsor Employee: No
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: TRIPLE
• Who Masked: PARTICIPANT, CARE PROVIDER, INVESTIGATOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: February 20, 2015
• First Posted: March 3, 2015
• Study Start: November 21, 2014
• Primary Completion: June 24, 2016
• Study Completion: October 24, 2016
• Last Updated: July 30, 2024
• Results First Posted: November 18, 2019

Record last verified: 2017-08

Data Sharing

• IPD Sharing: Will not share

Locations

ZA (3)