Study to Evaluate the Pharmacokinetics, Safety, and Antiviral Activity of the Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide (E/C/F/TAF) Single Tablet Regimen (STR) in HIV-1 Infected Antiretroviral Treatment-Naive Adolescents and Virologically Suppressed Children

Summary

The primary objectives of Cohort 1 are to evaluate the steady state pharmacokinetics (PK) for elvitegravir (EVG) and tenofovir alafenamide (TAF) and confirm the dose of the elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) STR (Part A) and to evaluate the safety and tolerability of E/C/F/TAF STR through Week 24 (Part B) in human immunodeficiency virus - 1 (HIV-1) infected, antiretroviral (ARV) treatment-naive adolescents. The primary objectives of Cohort 2 are to evaluate the PK of EVG and TAF (Part A), and to evaluate the safety and tolerability of E/C/F/TAF through Week 24 (Part B) in virologically suppressed HIV-1 infection children 6 to \< 12 years weighing \>= 25 kg. The primary objectives of Cohort 3 are to evaluate the PK of EVG and TAF and confirm the dose of the STR, and to evaluate the safety and tolerability of E/C/F/TAF low dose (LD) STR in virologically suppressed HIV-1 infected children ≥ 2 years of age and weighing ≥ 14 to \< 25 kg.

Timeline

Start

2013-05-06

Primary completion

2020-05-11

Completion

2025-06-18

Publications

• Results Rakhmanina N, Gaur A, Natukunda E, Chokephaibulkit K, Liberty A, Kido A, et al. Acceptability and palatability of the single-tablet regimens of B/F/TAF and E/C/F/TAF in children (6-12 years) living with HIV infection [Abstract 33]. 10th International Workshop on HIV Pediatrics; 2018 July 21-22; Amsterdam, The Netherlands
• Results Sharma S, Gupta S, Majeed S, Strehlau R, Hellstrom E, Liu Y, et al. Exposure-Safety of Tenofovir in Pediatric HIV-Infected Participants: Comparison of Tenofovir Alafenamide & Tenofovir Disoproxil Fumarate [Abstract 23]. 10th International Workshop on HIV Pediatrics; 2018 July 21-22; Amsterdam, The Netherlands.
• Results Natukunda E, Gaur AH, Kosalaraksa P, Batra J, Rakhmanina N, Porter D, Shao Y, Zhang H, Pikora C, Rhee MS. Safety, efficacy, and pharmacokinetics of single-tablet elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide in virologically suppressed, HIV-infected children: a single-arm, open-label trial. Lancet Child Adolesc Health. 2017 Sep;1(1):27-34. doi: 10.1016/S2352-4642(17)30009-3. Epub 2017 Jun 29.
• Results Rakhmanina N, Natukunda E, Kosalaraksa P, Batra J, Gaur A, Shao Y, et al. Safety and efficacy of E/C/F/TAF in virologically suppressed, HIV-infected children through 48 weeks [Abstract 32]. 9th International Workshop on HIV Pediatrics; 2017 July 21-22; Paris, France.
• Results Gaur A, Natukunda E, Kosalarksa P, Batra J, Rakhmanina N, Coluci A, et al. Pharmacokinetics, Safety, and Efficacy of E/C/F/TAF in HIV-1-Infected Children (6 to <12 years) [Poster 424]. Conference on Retroviruses and Opportunistic Infections (CROI); 2017 February 13-16; Seattle Washington.
• Results Gaur AH, Kizito H, Prasitsueubsai W, Rakhmanina N, Rassool M, Chakraborty R, Batra J, Kosalaraksa P, Luesomboon W, Porter D, Shao Y, Myers M, Ting L, SenGupta D, Quirk E, Rhee MS. Safety, efficacy, and pharmacokinetics of a single-tablet regimen containing elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide in treatment-naive, HIV-infected adolescents: a single-arm, open-label trial. Lancet HIV. 2016 Dec;3(12):e561-e568. doi: 10.1016/S2352-3018(16)30121-7. Epub 2016 Oct 17.
• Results Gaur A, Kizito H, Chakraborty R, Batra J, Kosalaraksa P, Luesomboon W, et al. Safety and Efficacy of E/C/F/TAF in HIV-1 Infected Treatment-Naive Adolescents [Poster 817]. Conference on Retroviruses and Opportunistic Infections (CROI); 2016 February 22-25; Boston, Massachusetts.
• Results Natukunda E, Liberty A, Strehlau R, Hellstrom E, Hakim JG, Kaur H, et al. Safety, pharmacokinetics and efficacy of low dose E/C/F/TAF in virologically suppressed children ≥ 2 years old living with HIV. (Abstract OABLB0101) 23rd International AIDS Conference; 06-10 July 2020 (Virtual).
• Results Natukunda E, Liberty A, Strehlau R, Hellstrom E, Hakim J, Kaur H, et al. Safety, pharmacokinetics, and efficacy of low dose E/C/F/TAF in virologically suppressed children ≥ 2 years old living with HIV. (Abstract 3) International Workshop on HIV Pediatrics 2020; 16-17 November 2020 (Virtual).
• Results Liberty A, Strehlau R, Rakhmanina N, Chokephaibulkit K, Koziara J, Kaur H, et al. Acceptability and palatability of low dose B/F/TAF and E/C/F/TAF in children (≥ 2y) with HIV. (Abstract 57) International Workshop on HIV Pediatrics 2020; 16-17 November 2020 (Virtual).
• Results Kizito H, Gaur A, Prasitsuebsai W, Rakhmanina N, Lawson E, Shao Y, et al. Safety, Efficacy and Pharmacokinetics of the Integrase Inhibitor-Based E/C/F/TAF Single-Tablet Regimen in Treatment-Naïve HIV-Infected Adolescents Through 24 Weeks of Treatment [Poster 953]. Conference on Retroviruses and Opportunistic Infections; 2015 February 23-26; Seattle, WA.
• Results Porter DP, Bennett SR, Quirk E, Miller MD, White KL. Lack of Emergent Resistance in HIV-1-Infected Adolescents on Elvitegravir-Based STRs [Poster 952]. Conference on Retroviruses and Opportunistic Infections (CROI); 2015 23-26 February; Seattle, WA.
• Results Kizito H, Gaur A, Prasitsuebsai W, Rakhmanina N, Lawson E, Shao Y, et al. Safety, Efficacy and Pharmacokinetics of the Integrase Inhibitor-Based E/C/F/TAF Single-Tablet Regimen in Treatment-Naïve HIV-Infected Adolescents Through 24 Weeks of Treatment [Poster 36]. 16th International Workshop on Clinical Pharmacology of HIV & Hepatitis Therapy; 2015 26-28 May; Washington, DC.
• Results Kizito H, Gaur A, Prasitsuebsai W, Rakhmanina N, Chokephaibulkit K, Fourie J, et al. Changes in renal laboratory markers and bone mineral density in treatment-naïve HIV-1-infected adolescents initiating INSTI-based single-tablet regimens containing tenofovir alafenamide (TAF) or tenofovir disoproxil fumarate (TDF) [Presentation #MOAB0104]. International AIDS Society (IAS) Conference on HIV Pathogenesis, Treatment and Prevention; 2015 19-22 July; Vancouver, Canada.
• Results Natukunda E, Gaur AH, Kosalaraksa P, Hellstrom E, Strehlau R, Liberty A, Cox S, Leisegang R, Palaparthy R, Crowe S, Vieira V, Kersey K, Rakhmanina N. Pharmacokinetics, safety and efficacy of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide in children with HIV aged from 2 years and weighing at least 14 kg. J Int AIDS Soc. 2025 Feb;28(2):e26414. doi: 10.1002/jia2.26414.
• Results Natukunda E, Gaur AH, Deville JG, Kosalaraksa P, Strehlau R, Castano E, Liberty A, Crowe S, Palaparthy R, Vieira VA, Kersey K, Rakhmanina N, Gordon CM. Longitudinal Evaluation of Bone Safety in Children and Adolescents With HIV-1 Starting Tenofovir Alafenamide-Containing Antiretroviral Therapy. J Pediatric Infect Dis Soc. 2025 Aug 7;14(7):piaf062. doi: 10.1093/jpids/piaf062.

Drugs

Indications