QT effects of bedaquiline, delamanid, or both in patients with rifampicin-resistant tuberculosis: a phase 2, open-label, randomised, controlled trial

Study (n=84) found that combining bedaquiline and delamanid has a modest effect on the QTc interval (mean baseline change in QTc =12.3 ms for bedaquiline; 8.6 ms for delamanid; 20.7 ms with both) with no grade 3 or 4 adverse QTc prolongation events or deaths.

Source:

The Lancet Infectious Diseases