This study aims to find out whether treating children living with HIV with three anti-HIV medicines, dolutegravir (DTG), emtricitabine (FTC) and tenofovir alafenamide (TAF), with a novel dose ratio will achieve adequate drug concentrations and is safe. The optimal DTG/FTC/TAF dose ratio will be used for the development of a fixed-dose combination dispersible tablet.
Dolutegravir (DTG), Emtricitabine (FTC) and Tenofovir alafenamide (TAF) are anti-HIV medicines. DTG works very well, can be taken once-daily and has few side effects. In international treatment guidelines, DTG is one of the most recommended medicines for adults and young people. Emtricitabine is also one of the preferred medicines in anti-HIV treatment for adults and children. Tenofovir alafenamide (TAF) is not yet recommended in children \<25 kg, however TAF could potentially be used safely and effectively in children. Combining DTG, FTC and TAF in a specific dose ratio may offer treatment that is safe and effective. If so, a combination dispersible tablet containing these three medicines can be developed and this will allow the same HIV medicines to be used across children and adults. This study will include 50 children aged 28 days to less than 10 years old who are living with HIV. All participants will receive the same treatment with DTG, FTC and TAF. Subjects will receive DTG 10 mg dispersible tablets and FTC/TAF 15/1.88 mg dispersible tablets or DTG 50 mg film coated tablets and FTC/TAF 200/25 mg film coated tablets depending on weight band. All children in the study will have clinical assessments. Blood tests will be performed to make sure that the medicines are safe and, at some visits, participants and carers will also be asked to answer some questions on taking medicine and how medicine tastes. All children will be followed up for 24 weeks.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
50
Switch or start dolutegravir (DTG)/emtricitabine (FTC)/tenofovir alafenamide (TAF) regimen with a novel dose ratio for HIV treatment
Baylor College of Medicine Children's Foundation
Kampala, Uganda
Joint Research Centre
Kampala, Uganda
University of Zimbabwe Clinical Research Centre
Harare, Zimbabwe
Primary endpoints for DTG:
\- Geometric mean Ctrough concentration
Time frame: From enrollment to the end of treatment at 24 weeks
Primary endpoints for DTG:
Percentage of individual Ctrough concentrations below the 90% effective concentration (EC90) (0.32 mg/L)
Time frame: From enrollment to the end of treatment at 24 weeks
Primary endpoints for DTG:
\- Geometric mean DTG Ctrough, Cmax, and AUC
Time frame: From enrollment to the end of treatment at 24 weeks
Primary safety endpoints
\- Occurrence of serious adverse events
Time frame: From enrollment to the end of treatment at 24 weeks
Primary safety endpoints
\- Occurrence of new clinical and laboratory grade 3 and 4 adverse events
Time frame: From enrollment to the end of treatment at 24 weeks
Primary safety endpoints
Occurrence of adverse events (of any grade) leading to treatment modification
Time frame: From enrollment to the end of treatment at 24 weeks
Primary endpoints for FTC/TAF:
\- Geometric mean Ctrough, Cmax, and AUC
Time frame: From enrollment to the end of treatment at 24 weeks
Primary endpoints for FTC/TAF:
Intracellular tenofovir diphosphate (TDP) levels at 24 hours acquired through dried blood spot analysis
Time frame: From enrollment to the end of treatment at 24 weeks
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Efficacy endpoints
\- Viral load (VL) \<400 c/ml at 24 weeks
Time frame: From enrollment to the end of treatment at 24 weeks
Efficacy endpoints
Occurrence of new or recurrent WHO clinical stage 3 or 4 event
Time frame: From enrollment to the end of treatment at 24 weeks