Each year, there are about 600,000 new cases of RR- or MDR- TB and the global cure rate for MDR-TB is just 54%. Two new drugs were introduced, bedaquiline an delamanid, but the uptake of these treatments has been surprisingly slow despite the dire need for treatment. endTB was established to address barriers to access of these two drugs, and in this interim report presents three analyses as a part of the largest cohort study of patients receiving these treatments in the world.
The Safety Analysis focuses on adverse events patients on multidrug regimens like bedaquiline and delamanid may experience, with an emphasis on QT prolongation. The Delamanid Analysis focuses on patients receiving this treatment, many of whom have comorbidities such as HIV, diabetes, and Hepatitis C. Injectible Analysis examined patients who were susceptible to injection and those who were infected with injectable-resistant strains.
The interim analysis concluded that, similar to previous studies, delamanid is an effective drug to treat MDR-TB. Neither it nor bedaquiline poses major safety issues, but it is important for patients and clinicians to weigh the benefits and risks of replacing injectable treatments with these drugs before doing so. The data in the endTB study supports elevating bedaquiline and delamanid to the top of the MDR-TB drug hierarchy.