Changes in Weight, Body Composition and Metabolic Parameters After Discontinuing Dolutegravir or Tenofovir Disproxil

Changes in Weight After Switch to Dolutegravir/Lamivudine or Doravirine/Tenofovir/Lamivudine Compared to Continued Treatment With Dolutegravir/Tenofovir/Lamivudine for Virologically Suppressed HIV Infection. AVERTAS-2

Randomized controlled parallel open-label study in persons living with HIV. The aim is to study weight changes in patients switching from a dolutegravir and tenofovir disoproxil containing regimen to either a dolutegravir or tenofovir disoproxil free regimen.

Randomized controlled parallel open-label study in persons living with HIV and at least 6 month of treatment with dolutegravir/abacavir/lamivudine prior to inclusion.

Participants (n=126) are randomized to continue 3 drug-regimen dolutegravir/tenofovir disoproxil/lamivudine (control) or switch to two-drug regimen with dolutegravir/lamivudine (intervention 1) or to three-drug regimen with doravirine/tenofovir disoproxil/lamivudine. Follow-up is 48 weeks. Data is collected at baseline and week 48.

Primary outcome is changes in weight from baseline of more than 2 kg.

Secondary outcomes are virus persistent viral suppression, changes in body composition and metabolism, changes in bone metabolisme and renal function, changes in liver elasticity and fat infiltration.

Inclusion Criteria:

• Individuals ≥ 18 years old with diagnosed HIV and at least 6 months of ongoing treatment with dolutegravir/ doravirin/lamivudine will be included. Patients must have a plasma viral load (HIV-RNA) < 50 copies/ml at inclusion. For women of childbearing potential: Negative pregnancy test and willingness to use contraceptive (consistent with local regulations) during study period

Exclusion Criteria:

• Patients will be excluded in case of pre-existing viral resistance mutations to lamivudine, dolutegravir, tenofovir or doravirine the presence of hepatitis B antigen (HBsAg) or HBV DNA, cancer within past 5 years, pregnancy or breastfeeding. Any case of diabetes, cardiovascular disease or other chronic illness must be considered stable as assessed by the treating physician.