title: Acquired rifamycin resistance in persons with advanced HIV disease being treated for active tuberculosis with intermittent rifamycin-based regimens.
abstract: Rifamycin drugs (i.e., rifampin, rifabutin, and rifapentine) are essential for short-course chemotherapy in persons with active tuberculosis (TB). However, adverse drug-drug interactions complicate the concurrent use of rifamycins and protease inhibitor drugs in persons with active TB who also are infected with human immunodeficiency virus (HIV-TB). CDC has recommended use of rifabutin in place of rifampin in multidrug regimens for the treatment of active TB in HIV-TB because rifabutin can be administered with antiretroviral treatment regimens that include protease inhibitors (1,2). These recommendations included twice-weekly intermittent therapy. Because intermittent rifabutin-based regimens had not been evaluated in clinical trials of HIV-TB, CDC's TB Trials Consortium (TBTC) initiated TBTC Study 23, a single-arm trial of twice-weekly rifabutin-based therapy for treatment of HIV-TB.
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000188:drug therapy*; D019380:Anti-HIV Agents / Q000627:therapeutic use; D000904:Antibiotics, Antitubercular / Q000627:therapeutic use*; D023241:Antiretroviral Therapy, Highly Active; D004347:Drug Interactions; D024881:Drug Resistance, Bacterial; D015658:HIV Infections / Q000188:drug therapy; D006801:Humans; D007538:Isoniazid / Q000627:therapeutic use; D012294:Rifamycins / Q000627:therapeutic use*; D014376:Tuberculosis / Q000188:drug therapy*
chemical_list: D019380:Anti-HIV Agents; D000904:Antibiotics, Antitubercular; D012294:Rifamycins; D007538:Isoniazid