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| ID | Type | Description | Link |
|---|---|---|---|
| 2016-002345-39 | EudraCT Number |
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The goals of this clinical study are to learn how Bictegravir/Emtricitabine/Tenofovir Alafenamide fixed dose combination (FDC) interacts with the body, confirm the dose, and also to learn more about the safety and tolerability of Bictegravir/Emtricitabine/Tenofovir Alafenamide FDC in adolescents and children with HIV-1.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Cohort 1 (12 to < 18 years of age and weight ≥ 35 kg) | Experimental |
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| Cohort 2 (6 to < 12 years of age and weight ≥ 25 kg) | Experimental |
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| Cohort 3 (≥ 2 years of age and weight ≥ 14 to < 25 kg) | Experimental |
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| Cohort 4 Group 1 (≥ 2 years of age and weight ≥ 14 to < 25 kg) | Experimental | Due to Cohort 3 Part A Intensive PK evaluation at Week 2 with the low dose B/F/TAF FDC tablet, participants will not participate in an Intensive PK evaluation at Week 2. Participants will receive B/F/TAF FDC tablets for oral suspension (TOS) once daily through Week 48. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| B/F/TAF (Adult Strength) | Drug | 50/200/25 mg FDC tablets administered orally once daily without regard to food. |
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| Measure | Description | Time Frame |
|---|---|---|
| PK Parameter: AUCtau of Bictegravir | AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval). Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Ctau of Bictegravir | Ctau is defined as the observed drug concentration at the end of the dosing interval. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: AUC0-24 of TAF (Cohort 4) | AUClast is defined as area under the concentration versus time curve from time zero to the last quantifiable concentration. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| Measure | Description | Time Frame |
|---|---|---|
| Proportion of Participants with Plasma HIV-1 RNA < 50 copies/mL at Week 24 as Defined by the US FDA-Defined Snapshot Algorithm | Week 24 | |
| Proportion of Participants with Plasma HIV-1 RNA < 50 copies/mL at Week 48 as Defined by the US FDA-Defined Snapshot Algorithm |
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Key Inclusion Criteria:
Cohort 1: HIV-1 infected adolescents (12 to < 18 years of age and screening weight ≥ 35 kg) who are virologically suppressed for ≥ 6 months prior to screening. Cohort 2: HIV-1 infected children (6 to < 12 years of age and screening weight ≥ 25 kg) who are virologically suppressed for ≥ 6 months prior to screening.
Cohort 3: HIV-1 infected children (≥ 2 years of age and screening weight of ≥ 14 to < 25 kg) who are virologically suppressed for ≥ 6 months prior to screening.
Cohort 4 Group 1: HIV-1 infected children (≥ 2 years of age and screening weight of ≥ 14 to < 25 kg) who are virologically suppressed for ≥ 6 months prior to screening and unable to swallow tablets.
Cohort 4 Group 2-4: HIV-1 infected children (≥ 1 month of age and screening weight of ≥ 3 to < 14 kg) who are treatment naive or on antiretroviral (ARV) treatment for ≥ 1 month prior to screening.
Positive confirmatory HIV test (confirmatory nucleic acid-based testing if < 18 months of age).
On a stable ARV regimen for ≥ 1 month or treatment naive (Individual is considered treatment naive if ARVs were given for prevention of mother-to-child transmission but not for HIV treatment).
For < 1 year of age, eGFR ≥ the minimum normal values for age according to the information below using the Schwartz Formula,
For ≥ 1 year of age, eGFR ≥ 90 mL/min/1.73 m^2 using the Schwartz Formula.
No documented or suspected resistance to FTC, TFV, or INSTIs including, but not limited to, the reverse transcriptase resistance mutation K65R.
For individuals < 14 kg, M184V/I AND HIV-1 RNA < 50 copies/mL will be allowed. Individuals with HIV-1 RNA > 50 copies/mL should not have FTC, TFV, or INSTI resistance mutations.
Last dose of nevirapine (NVP) or efavirenz (EFV), if applicable, ≥ 14 days prior to enrollment.
Note: Other protocol defined Inclusion/Exclusion criteria may apply.
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| Name | Affiliation | Role |
|---|---|---|
| Gilead Study Director | Gilead Sciences | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Children's National Health System | Washington D.C. | District of Columbia | 20010 | United States | ||
| Midway Immunology and Research Center |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 38621393 | Derived | Rodriguez CA, Natukunda E, Strehlau R, Venter EL, Rungmaitree S, Cunningham CK, Lalloo U, Kosalaraksa P, HellstrOm E, Liberty A, McGrath EJ, Kaur M, Leisegang R, Hindman JT, Vieira VA, Kersey K, Cotton MF, Rakhmanina N, Gaur AH. Pharmacokinetics and safety of coformulated bictegravir, emtricitabine, and tenofovir alafenamide in children aged 2 years and older with virologically suppressed HIV: a phase 2/3, open-label, single-arm study. Lancet HIV. 2024 May;11(5):e300-e308. doi: 10.1016/S2352-3018(23)00327-2. Epub 2024 Apr 12. | |
| 34302760 |
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| Cohort 4 Group 2 (≥ 1 month of age and weight ≥ 10 to < 14 kg) | Experimental | Participants will participate in an Intensive PK evaluation at Week 2 after which they will continue to receive B/F/TAF FDC TOS twice daily through Week 48. |
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| Cohort 4 Group 3 (≥ 1 month of age and weight ≥ 6 to < 10 kg) | Experimental | Participants will participate in an Intensive PK evaluation at Week 2 after which they will continue to receive B/F/TAF FDC TOS twice daily through Week 48. |
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| Cohort 4 Group 4 (≥ 1 month of age and weight ≥ 3 to < 6 kg) | Experimental | Participants will participate in an Intensive PK evaluation at Week 2 after which they will continue to receive B/F/TAF FDC TOS twice daily through Week 48. |
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| Open-Label Extension | Experimental | Following Week 48, participants in countries where B/F/TAF is not available may have the option to receive adult strength B/F/TAF FDC, low dose B/F/TAF FDC, or B/F/TAF FDC TOS (based on age and weight) until it becomes available for use according to the participant's age and weight or the product becomes accessible to participants through an access program. |
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| B/F/TAF (Low Dose) | Drug | 30/120/15 mg FDC tablets administered orally once daily without regard to food. |
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| B/F/TAF (TOS) | Drug | 2 x B/F/TAF 15/60/7.5 mg (total daily dose 30/120/15 mg) FDC tablets administered orally as TOS, once daily. |
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| B/F/TAF (TOS) | Drug | 2 x B/F/TAF 3.75/15/1.88 mg (total daily dose 15/60/7.52 mg) FDC tablets administered orally as TOS, twice daily. |
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| B/F/TAF (TOS) | Drug | 1 x B/F/TAF 3.75/15/1.88 mg (total daily dose 7.5/30/3.76 mg) FDC tablets administered orally as TOS, twice daily. |
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| B/F/TAF (TOS) | Drug | 1 x B/F/TAF 1.88/7.5/0.94 mg (total daily dose 3.76/15/1.88 mg) FDC tablets administered orally as TOS, twice daily |
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| PK Parameter: AUC0-24 of Bictegravir (Cohort 4) | AUClast is defined as area under the concentration versus time curve from time zero to the last quantifiable concentration. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Cmax of TAF (Cohort 4) | Cmax is defined as maximum observed concentration of drug. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| Percentage of Participants Experiencing Treatment-Emergent Adverse Events (AEs) Through Week 24 | Up to 24 weeks |
| Percentage of Participants Experiencing Treatment-Emergent Laboratory Abnormalities Through Week 24 | Up to 24 weeks |
| Week 48 |
| Change from Baseline in CD4+ Cell Counts at Week 24 | Baseline, Week 24 |
| Change from Baseline in CD4+ Cell Counts at Week 48 | Baseline, Week 48 |
| Change from Baseline in CD4+ Cell Count Percentages at Week 24 | Baseline, Week 24 |
| Change from Baseline in CD4+ Cell Count Percentages at Week 48 | Baseline, Week 48 |
| PK Parameter: Tmax of Bictegravir | Tmax is defined as the time (observed time point) of Cmax. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Cmax of Bictegravir | Cmax is defined as the maximum observed concentration of drug. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: AUClast of Bictegravir | AUClast is defined as the area under the concentration of drug from time zero to the last observable concentration. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: T1/2 of Bictegravir | T1/2 is defined as the estimate of the terminal elimination half-life of the drug. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Apparent Clearance (CL) of Bictegravir | CL is defined as the systemic clearance of the drug following study drug administration. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Apparent Vz of Bictegravir | Vz is defined as the volume of distribution of the drug after study drug administration. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: AUCtau of TAF and FTC | AUCtau is defined as concentration of drug over time (the area under the concentration verses time curve over the dosing interval). Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: AUClast of TAF and FTC (Cohorts 1, 2, and 3) | AUClast is defined as the area under the concentration of drug from time zero to the last observable concentration. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose |
| PK Parameter: AUClast of FTC (Cohorts 4) | AUClast is defined as area under the concentration versus time curve from time zero to the last quantifiable concentration. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Cmax of TAF and FTC (Cohorts 1, 2, and 3) | Cmax is defined as the maximum observed concentration of drug. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose |
| PK Parameter: Cmax of FTC (Cohorts 4) | Cmax is defined as maximum observed concentration of drug. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Ctau of TAF and FTC | Ctau is defined as the observed drug concentration at the end of the dosing interval. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Tmax of TAF and FTC | Tmax is defined as the time (observed time point) of Cmax. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: T1/2 of TAF and FTC | T1/2 is defined as the estimate of the terminal elimination half-life of the drug. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Apparent CL of TAF and FTC | CL is defined as the systemic clearance of the drug following study drug administration. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| PK Parameter: Apparent Vz of TAF and FTC | Vz is defined as the volume of distribution of the drug after study drug administration. Cohorts 1 & 2 Part A will participate in an Intensive PK Evaluation at Week 2 or Week 4. Samples will be collected at 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, and 24 hours post-dose. Cohort 3 Part A will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, and 24 hours post-dose. Cohort 4 Groups 2, 3, and 4 participants will participate in an Intensive PK evaluation at Week 2. Samples will be collected at 0 (pre-dose) 0.5, 1, 2, 4, and 8 hours post-dose. | Week 2 or Week 4 for Cohorts 1 & 2: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, & 24 hours postdose; Week 2 for Cohort 3: 0 (pre-dose), 0.25, 0.5, 1, 1.5, 2, 3, 4, 5, 8, & 24 hours post-dose; Week 2 for Cohort 4: 0 (predose) 0.5, 1, 2, 4, & 8 hours postdose |
| Percentage of Participants Experiencing Treatment-Emergent Adverse Events Through Week 48 | Up to 48 weeks |
| Percentage of Participants Experiencing Treatment-Emergent Laboratory Abnormalities Through Week 48 | Up to 48 weeks |
| Acceptability of B/F/TAF Formulation at Day 1 (All Cohorts) | Participants or legal guardian will be asked:
| Day 1 |
| Palatability of B/F/TAF Formulation at Day 1 (All Cohorts) | Participants or legal guardian will be asked about the study drug taste (All Cohorts) | Day 1 |
| Acceptability of B/F/TAF Formulation at Week 4 (All Cohorts) | Participants or legal guardian will be asked:
| Week 4 |
| Palatability of B/F/TAF Formulation at Week 4 (All Cohorts) | Participants or legal guardian will be asked about the study drug taste (All Cohorts) | Week 4 |
| Acceptability of B/F/TAF Formulation at Week 24 (Cohort 3 and Cohort 4) | Participants or legal guardian will be asked:
| Week 24 |
| Palatability of B/F/TAF Formulation at Week 24 (Cohort 3 and Cohort 4) | Participants or legal guardian will be asked about the study drug taste | Week 24 |
| Acceptability of B/F/TAF Formulation at Week 48 (Cohort 3 and Cohort 4) | Participants or legal guardian will be asked:
| Week 48 |
| Palatability of B/F/TAF Formulation at Week 48 (Cohort 3 and Cohort 4) | Participants or legal guardian will be asked about the study drug taste | Week 48 |
| Acceptability of B/F/TAF Formulation at Week 1 (Cohort 4) | Participants or legal guardian will be asked about their understanding of instructions, preparation of the study drug formulation and study drug administration and taste | Week 1 |
| Palatability of B/F/TAF Formulation at Week 1 (Cohort 4) | Participants or legal guardian will be asked about the study drug taste | Week 1 |
| Acceptability of B/F/TAF Formulation at Week 2 (Cohort 4) | Participants or legal guardian will be asked about their understanding of instructions, preparation of the study drug formulation and study drug administration and taste | Week 2 |
| Palatability of B/F/TAF Formulation at Week 2 (Cohort 4) | Participants or legal guardian will be asked about the study drug taste | Week 2 |
| Ft. Pierce |
| Florida |
| 34982 |
| United States |
| University of Florida Health | Gainesville | Florida | 32209 | United States |
| USF Clinic at Children's Medical Services (study visits and drug storage) | Tampa | Florida | 33606 | United States |
| Grady Health System Ponce Center Family and Youth Clinic | Atlanta | Georgia | 30322 | United States |
| Wayne Pediatric Clinic | Detroit | Michigan | 48201 | United States |
| Bellevue Hospital | New York | New York | 10016 | United States |
| Duke Children's Health Center, Pediatric Infectious Diseases | Durham | North Carolina | 27710 | United States |
| St. Christopher's Hospital for Children/Section of Immunology | Philadelphia | Pennsylvania | 19134 | United States |
| St. Jude Children's Research Hospital | Memphis | Tennessee | 38105 | United States |
| Department of Paediatrics and Child Health | Bloemfontein | 9301 | South Africa |
| Be Part Ypluntu Centre | Cape Town | 7646 | South Africa |
| FAMCRU, Ward J8 | CapeTown | 7505 | South Africa |
| Dr. J Fourie Medical Centre | Dundee | 3000 | South Africa |
| Enhancing Care Foundation, Durban International Clinical Research Site | Durban | 4302 | South Africa |
| Wits RHI Shandukani Research Centre, Wits Reproductive Health & HIV Institute | Johannesburg | 2038 | South Africa |
| Empilweni Service and Research Unit (ESRU) | Johannesburg | 2112 | South Africa |
| VX Pharma(Pty) Ltd | Pretoria | 0087 | South Africa |
| Perinatal HIV Research Unit | Soweto | 2013 | South Africa |
| The HIV Netherlands Australia Thailand Research Collaboration | Bangkok | 10330 | Thailand |
| Faculty of Medicine Siriraj Hospital, Mahidol University | Bangkok | 10700 | Thailand |
| Faculty of Medicine, Khon Kaen University | Khon Kaen | 40002 | Thailand |
| Makerere University, Johns Hopkins (MU-JHU) Research Collaboration | Kampala | 0000 | Uganda |
| Joint Clinical Research Centre | Kampala | 10005 | Uganda |
| Baylor College of Medicine Children's Foundation - Uganda | Kampala | Uganda |
| Derived |
| Gaur AH, Cotton MF, Rodriguez CA, McGrath EJ, Helstrom E, Liberty A, Natukunda E, Kosalaraksa P, Chokephaibulkit K, Maxwell H, Wong P, Porter D, Majeed S, Yue MS, Graham H, Martin H, Brainard DM, Pikora C. Fixed-dose combination bictegravir, emtricitabine, and tenofovir alafenamide in adolescents and children with HIV: week 48 results of a single-arm, open-label, multicentre, phase 2/3 trial. Lancet Child Adolesc Health. 2021 Sep;5(9):642-651. doi: 10.1016/S2352-4642(21)00165-6. Epub 2021 Jul 22. |
| ID | Term |
|---|---|
| C000654125 | bictegravir, emtricitabine, tenofovir alafenamide, drug combination |
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