The dolutegravir failure cohort: A multi-country longitudinal cohort with a randomised clinical trial of continued dolutegravir versus switch to darunavir in people with viraemia while on dolutegravir in Sub-Saharan Africa (The Ndovu Study) protocol - Loice Achieng Ombajo; Joseph Nkuranga; Jeremy Penner; Emily Wangui Kamau; Nalia Ismael; Patricia Munseri; Irene Ayakaka; Niklaus Labhardt; Dalton Wamalwa; Patricia Ramgi; Raquel Matavele Chissumba; James Wagude; et al. (PLoS ONE, 2026)