SMSs as an alternative to provider-delivered care for unhealthy alcohol use: study protocol for Leseli, an open-label randomised controlled trial of mhGAP-Remote vs mhGAP-Standard in Lesotho.

BACKGROUND

The World Health Organization's (WHO) Mental Health Gap Action Programme (mhGAP) is a validated intervention that can be provided by non-specialised healthcare workers to individuals with unhealthy alcohol use. However, it typically requires several in-person sessions at a health facility, which may limit its feasibility and effectiveness in remote settings. This trial compares mhGAP-Standard, a 4 to 6 in-person session intervention, to mhGAP-Remote, a 1 in-person session intervention followed by 8 week of short message service (SMS) in Lesotho. We hypothesise that mhGAP-Remote is superior to mhGAP-Standard in reducing alcohol use (as detailed by the primary and secondary outcomes below).

METHODS

This is a two-arm randomised open-label multicentre superiority trial. Participants allocated to mhGAP-Standard receive 4 in-person sessions using motivational interviewing, identifying triggers, and alternative behaviours, with the option of two additional booster sessions. Participants in the mhGAP-Remote arm receive 1 in-person session covering the same content, followed by standardised SMSs over 8 weeks that reinforce intervention content. Non-specialist providers deliver the intervention and receive weekly supervision. Adults (N = 248) attending participating health facilities for any reason and who meet criteria for unhealthy alcohol use based on the Alcohol Use Disorders Identification Test ([AUDIT] score ≥ 6 for women, ≥ 8 for men) are individually randomised to the two arms (1:1 allocation, stratified by participant sex and age (≥ 50 vs < 50 years old). Follow-up assessments occur at 8, 20, and 32 weeks post-randomisation. The primary outcome is change in self-reported alcohol use (continuous AUDIT score), from baseline to 8 weeks follow-up. Change in the AUDIT from baseline to 20 and 32 weeks follow-up is a secondary outcome. Change in the biomarker phosphatidylethanol (secondary), liver enzyme values in serum (exploratory), and HIV viral load (for people with HIV only; exploratory) are also evaluated from baseline throughout the entire follow-up period. A linear regression model will be conducted for the primary analysis, adjusted for the stratification factors. Three a priori sensitivity analyses for the primary outcome are planned based on per protocol treatment attendance, recovery from unhealthy alcohol use, and clinically significant and reliable change.

DISCUSSION

This trial will provide insight into feasibility and effectiveness of a shortened and primarily SMS supported version of mhGAP, which is especially relevant for settings where regular clinic attendance is a major barrier.

TRIAL REGISTRATION

clinicaltrials.gov NCT05925270 . Approved on June 29th, 2023.