A clinical trial will examine an investigational drug’s early bacteria-killing activity in patients newly diagnosed with drug-sensitive pulmonary tuberculosis. The clinical trial — sponsored by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health — is being led by researchers at the Tuberculosis Research Unit at Case Western Reserve University in Cleveland. The study to take place in Cape Town, South Africa, will enroll 75 men and women with TB ages 18 to 65, including individuals who are also infected with HIV but not yet taking antiretroviral treatment.