Qualitative study exploring the feasibility of using medication monitors and a differentiated care approach to support adherence among people receiving TB treatment in South Africa

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Abstract
Objectives The tuberculosis (TB) MATE study evaluated whether a differentiated care approach (DCA) based on tablet-taking data from Wisepill evriMED digital adherence technology could improve TB treatment adherence. The DCA entailed a stepwise increase in adherence support starting from short message service (SMS) to phone calls, followed by home visits and motivational counselling. We explored feasibility of this approach with providers in implementing clinics. Design Between June 2020 and February 2021, in-depth interviews were conducted in the provider’s preferred language, audiorecorded, transcribed verbatim and translated. The interview guide included three categories: feasibility, system-level challenges and sustainability of the intervention. We assessed saturation and used thematic analysis. Setting Primary healthcare clinics in three provinces of South Africa. Participants We conducted 25 interviews with 18 staff and 7 stakeholders. Results Three major themes emerged: First, providers were supportive of the intervention being integrated into the TB programme and were eager to be trained on the device as it helped to monitor treatment adherence. Second, there were challenges in the adoption system such as shortage of human resources which could serve as a barrier to information provision once the intervention is scaled up. Healthcare workers reported that some patients received incorrect SMS’s due to delays in the system that contributed to distrust. Third, DCA was considered as a key aspect of the intervention by some staff and stakeholders since it allowed for support based on individual needs. Conclusions It was feasible to monitor TB treatment adherence using the evriMED device and DCA. To ensure successful scale-up of the adherence support system, emphasis will need to be placed on ensuring that the device and the network operate optimally and continued support on adhering to treatment which will enable people with TB to take ownership of their treatment journey and help overcome TB-related stigma. Trial registration number Pan African Trial Registry PACTR201902681157721.
Funding Information
  • Bill & Melinda Gates Foundation (OPP1205388)
  • South African Medical Research Council through the Strategic Health Innovation Partnerships (N/A)
  • TB REACH Wave 6 project of Stop TB Partnership (STBP/TBREACH/GSA/W6-34)

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