Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-25 @ 12:09 AM
Ignite Modification Date:
2025-12-25 @ 12:09 AM
NCT ID:
NCT06845358
Brief Summary:
A nonrandomized, open-label trial will be conducted with a total of 64 healthy male and non-pregnant females, ages 18-45 years. Participants in Group A will enroll 32 participants to receive 2x10\^6 colony- forming units CFU TICE(R) BCG vaccination on Day 1 and 4x10\^6 CFU challenge on Day 181. Once enrollment has been completed in Group A, participants in Group B will be enrolled sequentially to receive 4x10\^6 CFU challenge. The primary objectives are to evaluate the safety of intradermal (ID) TICE(R) BCG for use as a human challenge model for Mycobacterium tuberculosis (Mtb) infection and to examine BCG shedding from challenge sites in participants who had received ID vaccination with TICE(R) BCG or were not vaccinated six months prior.
Detailed Description:
A nonrandomized, open-label trial will be conducted with a total of 64 healthy male and non-pregnant females, ages 18-45 years. Participants in Group A will enroll 32 participants to receive 2x10\^6 colony- forming units (CFU) TICE(R) BCG vaccination on Day 1 and 4x10\^6 CFU challenge on Day 181. Once enrollment has been completed in Group A, participants in Group B will be enrolled sequentially to receive 4x10\^6 CFU challenge. The primary objectives are to evaluate the safety of intradermal (ID) TICE(R) BCG for use as a human challenge model for Mycobacterium tuberculosis (Mtb) infection and to examine BCG shedding from challenge sites in participants who had received ID vaccination with TICE(R) BCG or were not vaccinated six months prior. The secondary objectives are to 1) evaluate the safety of ID TICE(R) BCG after vaccination, 2) examine BCG shedding by MGIT assay from challenge sites in participants who had received ID vaccination with TICE(R) BCG or were not vaccinated six months prior, 3) examine BCG shedding from challenge sites in participants that had received ID vaccination with TICE(R) BCG or were not vaccinated six months prior using additional assays, 4) characterize the T cell responses after BCG challenge in participants that received ID vaccination with TICE(R) BCG or not vaccinated six months prior and 5) determine whether IFN-gamma correlates with levels of BCG shedding.
Study:
NCT06845358
Study Brief:
Protocol Section:
NCT06845358