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Feasibility and acceptability of asynchronous VOT among patients with MDR-TB

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BACKGROUND: We conducted a feasibility and acceptability study of video-observed therapy (VOT) among patients with multidrug-resistant TB (MDR-TB) and other types of drug-resistant TB (DR-TB) in the Philippines.

METHODS: Patients aged ≥13 years were approached to use VOT. A smartphone with VOT mobile application to video-record medication intake was provided. Healthcare workers (HCWs) monitored adherence by watching videos via a web-based dashboard. Good adherence was defined as intake of >90% of expected doses. Feasibility and acceptability were assessed using a semi-structured questionnaire on a Likert scale.

RESULTS: Of 308 patients, 110 (36%) patients chose VOT; 67 completed treatment using VOT and 43 stopped VOT prior to treatment outcome; 74/110 (67%) had good adherence. The treatment success rate was 88% and the loss to follow-up rate was 8.1%. Among HCWs, 90% (9/10) had a positive perception of VOT. All HCWs agreed that VOT data accurately reflect medication intake of the patients; 88/89 (99%) mentioned benefits of VOT, notably convenience, sense of comfort, privacy and security.

CONCLUSIONS: VOT is feasible and acceptable for both patients and HCWs. This study could provide guidance to the country programme to launch VOT for treatment of patients with MDR-TB and other DR-TB.

Keywords: digital adherence tool; drug resistance; tuberculosis; video-observed therapy

Document Type: Research Article

Affiliations: De La Salle Medical and Health Sciences Institute, Dasmariñas, Cavite, The Philippines

Publication date: August 1, 2022

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