Dolutegravir Study in HIV-1 Participants Completing IMPAACT Studies P1093 and P2019

Dolutegravir is a potent integrase strand transfer inhibitor. Abacavir/dolutegravir/lamivudine (ABC/DTG/3TC) is a fixed dose combination regimen containing two nucleoside reverse transcriptase inhibitors and dolutegravir. This is a phase 3b, non-randomized, open-label, multi-center, two treatment rollover study. The primary objective of this pediatric interventional study is to provide continued access to age appropriate formulations of investigational product (dolutegravir), either as Tivicay or as part of fixed dose combination ABC/DTG/3TC, for eligible participants who previously participated in parent studies P1093 (NCT01302847) or P2019 (NCT03760458) and who cannot locally access age appropriate formulations of dolutegravir or ABC/DTG/3TC in the public sector. The P1093 study was designed to evaluate the pharmacokinetics (PK), safety, tolerability and antiviral activity of dolutegravir in combination with optimized background regimens in human immunodeficiency virus type 1 (HIV-1) experienced adolescents and children as well as treatment naïve infants and toddlers. The P2019 study was designed to evaluate PK, safety, tolerability and antiviral activity of ABC/DTG/3TC dispersible and immediate release tablets in HIV-1-infected children. Participants who have tolerated investigational product in the parent studies without any significant toxicity or signs of virologic failure leading to the permanent discontinuation of investigational product and withdrawal from the parent study will be considered for this open label continued access study. Participants will receive their age/weight appropriate dose of investigational product as defined in the parent study. The duration of participation in the study will extend until age appropriate formulations of Tivicay or ABC/DTG/3TC receive local (by country) regulatory approval and are available in those countries from another source (e.g. government programs, aid programs, assistance programs, etc.) or the participant is n