GSK Reports Favorable Data from TB Therapy Trial

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GSK says a Phase 2a study showed that GSK3036656, an investigational antitubercular agent, was well tolerated and showed early bactericidal activity with a low, once-daily oral dose after 14 days of treatment in participants with drug-susceptible pulmonary tuberculosis (TB). “These results demonstrate the potential for GSK3036656 to be a component of simpler treatment regimens in the future which could help address the TB epidemic,” it says.

In the study, anti-mycobacterial activity was demonstrated, such as reducing the number of viable TB cells which are able to multiply (colony forming units) and an increase in the time to detect bacterial growth in culture (time to positivity), GSK says. It adds that lung imaging showed a reduction in TB disease over 14 days in all participants taking GSK3036656 30mg.

 Next up, the company says the therapy will be tested in Phase 2b/c studies in different drug regimens to determine the appropriate partner agents to complement its anti-TB action and the optimal regimen durations. “The aim,”  it says, “is to identify a GSK3036656-containing regimen with sufficient tolerability, efficacy and short enough duration to progress to Phase 3 with a high probability of success.”

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