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Tenofovir alafenamide/emtricitabine

Phase 1

HIV Infections | Small molecule | Infectious Disease |GSK plc|Last Updated: Apr 21, 2020

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment16
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03836729Study to Evaluate the Effect of GSK3640254 on the Pharmacokinetics of Tenofovir Alafenamide/EmtricitabinePHASE1 COMPLETED 16Feb 11, 2019Apr 30, 2019Apr 21, 20201 United States
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Study Endpoints
Primary Endpoints
Period 1: Area Under the Plasma Concentration-time Curve From Time 0 to the End of the Dosing Interval at Steady State (AUC [0-tau]) of TAF
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of AUC (0-tau). Pharmacokinetic (PK) parameters were calculated by standard non-compartmental analysis. PK Parameter Population included all participants who underwent plasma PK sampling and had evaluable PK parameters estimated.

Period 2: AUC (0-tau) of TAF
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of AUC (0-tau). PK parameters were calculated by standard non-compartmental analysis.

Period 1: Maximum Observed Concentration (Cmax) of TAF
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of Cmax. PK parameters were calculated by standard non-compartmental analysis.

Period 2: Cmax of TAF
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of Cmax. PK parameters were calculated by standard non-compartmental analysis.

Period 1: AUC (0-tau) of FTC
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of AUC (0-tau). PK parameters were calculated by standard non-compartmental analysis.

Period 2: AUC (0-tau) of FTC
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of AUC (0-tau). PK parameters were calculated by standard non-compartmental analysis.

Period 1:Cmax of FTC
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of Cmax. PK parameters were calculated by standard non-compartmental analysis.

Period 2:Cmax of FTC
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of Cmax. PK parameters were calculated by standard non-compartmental analysis.

Period 1: Plasma Concentration at the End of the Dosing Interval (Ctau) of FTC
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of Ctau. PK parameters were calculated by standard non-compartmental analysis.

Period 2: Ctau of FTC
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of Ctau. PK parameters were calculated by standard non-compartmental analysis.

Period 1: AUC (0-tau) of Tenofovir (TFV)
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of AUC (0-tau). PK parameters were calculated by standard non-compartmental analysis.

Period 2: AUC (0-tau) of TFV
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of AUC (0-tau). PK parameters were calculated by standard non-compartmental analysis.

Period 1: Cmax of TFV
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of Cmax. PK parameters were calculated by standard non-compartmental analysis.

Period 2: Cmax of TFV
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of Cmax. PK parameters were calculated by standard non-compartmental analysis.

Period 1: Ctau of TFV
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 1 Day 14

Blood samples were collected at indicated time-points for analysis of Ctau. PK parameters were calculated by standard non-compartmental analysis.

Period 2: Ctau of TFV
Pre-dose, 15, 30, 45 minutes, 1 hour, 1 hour 30 minutes, 2, 3, 4, 5, 6, 8, 12 and 24 hours in Period 2 Day 7

Blood samples were collected at indicated time-points for analysis of Ctau. PK parameters were calculated by standard non-compartmental analysis.

Secondary Endpoints
Number of Participants With Non-serious Adverse Events (Non-SAEs) and Serious Adverse Events (SAE)
Up to Day 24
Period 1: Change From Baseline in Hematology Parameter of Platelet Count, Neutrophils, Lymphocytes, Monocytes, Eosinophils and Basophils
Baseline and at Days 7, and 14
Period 2: Change From Baseline in Hematology Parameter of Platelet Count, Neutrophils, Lymphocytes, Monocytes, Eosinophils and Basophils
Baseline and at Days 3, 7, 9
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Study Design & Arms
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TAF/FTC followed by TAF/FTC + GSK3640254EXPERIMENTALSubjects will receive TAF/FTC 25/200 mg QD on Days 1 through 14 in Treatment Period 1. Subjects will be co-administered TAF/FTC 25/200 mg QD with GSK3640254 200 mg QD on Days 1 through 7 in Treatment Period 2.
Interventions
NameTypeDescription
Tenofovir alafenamide/emtricitabineDRUGTAF/FTC will be available as 25/200 milligrams (mg) tablet. Subjects will be administered TAF/FTC 25/200 mg QD via the oral route.
GSK3640254DRUGGSK3640254 will be available as 100 mg capsule. Subjects will be administered GSK3640254 200 mg capsule QD via the oral route.
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Eligibility Criteria
Age Range18 Years — 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Subject must be 18 to 55 years of age inclusive, at the time of signing the informed consent. * Subjects who are healthy as determined by the investigator or medically qualified designee based on a medical evaluation including medical history, physical examination, laboratory ...

Countries:United States
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