Treatment outcomes in patients with drug-resistant TB-HIV co-infection treated with bedaquiline and linezolid

Int J Tuberc Lung Dis. 2020 Oct 1;24(10):1024-1031. doi: 10.5588/ijtld.20.0048.

Abstract

BACKGROUND: Bedaquiline (BDQ) has not been extensively studied among patients co-infected with HIV drug-resistant tuberculosis (DR-TB). We compared treatment outcomes in DR-TB patients treated with BDQ- and linezolid (LZD) containing regimens to historic controls treated with second-line injectable-containing regimens.METHODS: Retrospective cohort study of consecutive DR-TB patients initiated on BDQ- and LZD-containing regimens at a TB referral hospital in KwaZulu-Natal, South Africa. Participants were prospectively followed through 24 months for treatment outcome and adverse events. Outcomes were compared to a historic control cohort of DR-TB HIV patients enrolled at the same facility prior to BDQ introduction.RESULTS: Adult DR-TB patients initiating BDQ between January 2014 and November 2015 were enrolled (n = 151). The majority of patients were female (52%), HIV co-infected (77%) and on antiretroviral therapy (100%). End of treatment outcomes included cure (63%), TB culture conversion (83%), completion (0.7%), loss to follow-up (15%), treatment failure (5%), and death (17%). Compared to historic controls (n = 105), patients treated with BDQ experienced significantly higher TB culture conversion and cure, with significantly lower mortality. Adverse effects were common (92%), and most frequently attributed to LZD (24.1%). QT segment prolongation was common but without clinical sequelae.CONCLUSION: Treatment with BDQ- and LZD-containing regimens was associated with improved treatment outcomes and survival in DR-TB HIV patients.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antitubercular Agents / therapeutic use
  • Coinfection* / drug therapy
  • Diarylquinolines
  • Female
  • HIV Infections* / complications
  • HIV Infections* / drug therapy
  • Humans
  • Linezolid
  • Male
  • Retrospective Studies
  • South Africa
  • Treatment Outcome
  • Tuberculosis, Multidrug-Resistant* / drug therapy

Substances

  • Antitubercular Agents
  • Diarylquinolines
  • bedaquiline
  • Linezolid