Open-Label, Single-Sequence Study to Evaluate the Effects of Darunavir/Ritonavir and/or Etravirine on the Pharmacokinetics of GSK3640254 and the Effects of GSK3640254 on the Pharmacokinetics of Darunavir/Ritonavir and/or Etravirine in Heathy Adults

This is an open-label, single-sequence, multiple-dose, 3 cohort study to investigate the effects of DRV/RTV and/or ETR on the pharmacokinetics (PK) of GSK3640254 and the effects of GSK3640254 on the PK of DRV/RTV and/or ETR. This study will aid in understanding these interactions and resulting changes in exposure (if any) when given in combination with GSK3640254.