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Emtricitabine

Phase 3

HIV Infections | Small molecule | Infectious Disease |Gilead Sciences, Inc.|Last Updated: Oct 13, 2010

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
RandomizedCONTROLLEDDMCBiomarker
Total Trials4
Total Enrollment922
FDA Designations
No designations recorded
Clinical Trials (4)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00196612Once Daily Antiretroviral Therapy in HIV Infected Adults Treated With HAARTPHASE3 COMPLETED 350Apr 1, 2001Sep 1, 2004Sep 20, 2005 -
NCT00112047Tenofovir Disoproxil Fumarate/Emtricitabine/Efavirenz Versus Combivir/Efavirenz in Antiretroviral-Naive HIV-1 Infected SubjectsPHASE3 COMPLETED 517Jul 1, 2003Jun 1, 2009Oct 13, 20105 United States
NCT00196599Pilot Study on Once Daily FTC, ddI, Efavirenz Combination in Antiretroviral Naive HIV Infected AdultsPHASE2 COMPLETED 39Feb 1, 1999Sep 1, 2004Sep 20, 2005 -
NCT00642291An Open-Label Study of Emtricitabine in Combination With Other Antiretroviral Agents in HIV Infected Pediatric SubjectsPHASE2 COMPLETED 16Nov 1, 2002Jul 1, 2004Apr 10, 20082 Romania
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Study Endpoints
Primary Endpoints
Virological success from W0 to W48
Percentage of Participants With Confirmed Plasma HIV-1 RNA < 400 c/mL at Week 48 (Defined by the Food and Drug Administration [FDA] Time-to-Loss-of Virologic Response [TLOVR] Algorithm
48 weeks

Participants who achieved/maintained confirmed HIV-1 RNA \< 400 c/mL had to satisfy the following criteria: 1) not experienced death, permanent study drug discontinuation, or addition of new antiretroviral drug except nevirapine in place of EFV prior to Week 48 visit; 2) achieved confirmed HIV-1 RNA \< 400 c/mL on 2 consecutive visits prior to Week 48 visit (ie, the first of the 2 consecutive HIV-1 RNA \< 400 c/mL occurred prior to the Week 48 visit; 3) not had confirmed HIV-1 RNA \> 400 c/mL after achievement of confirmed HIV RNA levels \< 400 c/mL prior to Week 48 visit.

Virological success
The primary safety endpoint was tolerability failure (A patient was classified as a tolerability failure if (s)he had any adverse event or laboratory toxicity that lead to the permanent discontinuation of emtricitabine
Week 48
The primary efficacy endpoint was defined as the suppression of plasma HIV-1 RNA levels below 50 copies/mL at Week 48
Week 48
Secondary Endpoints
Progression of HIV infection
CD4 cell count
Safety
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
EFV+CBVACTIVE_COMPARATORParticipants in this group received EFV 600 mg once daily + Combivir (\[CBV\]; the fixed dose combination pill containing lamivudine 150 mg + zidovudine 300 mg) taken twice daily from the start of the study until Week 144. At Week 144 all participants who opted to roll over into the additional 96-week study extension received Atripla (\[ATR\]; the fixed-dose combination tablet containing FTC 200 mg/TDF 300 mg/EFV 600 mg) taken once daily until the end of the study (Week 240). At sites in France, the study was extended by a further 48 weeks (Year 6) or until ATR became commercially available (whichever happened first); once ATR became commercially available in France participants were not required to complete the full 288 weeks of the study.
EFV+FTC+TDFEXPERIMENTALParticipants in this arm received 3 component drugs: efaviren (EFV; 600 mg) + emtricitabine (FTC; 200 mg) + tenofovir disoproxil fumarate (tenofovir DF \[TDF\]; 300 mg) as 3 separate pills once daily from the start of the study. At 96 weeks Truvada (\[TVD\] the fixed-dose combination pill containing FTC/TDF \[200/300 mg\] once daily) replaced the 2 component drugs FTC + TDF; participants continued to receive EFV 600 mg once daily. At Week 144 all participants who opted to roll over into the further 96-week study extension received ATR. At sites in France, the study was extended by a further 48 weeks (Year 6) or until ATR became commercially available (whichever happened first); once ATR became commercially available in France participants were not required to complete the full 288 weeks of the study.
1EXPERIMENTALTreatment naive pediatric patients (Group 1: ages 3 to 24 months)were to receive emtricitabine (6mg/kg QD; max 200 mg QD) plus stavudine 1 mg/kg BID (if \<30kg)plus lopinavir/ritonavir (12/3 mg/kg BID if \>=7 to \<15kg; 10/2.5 mg/kg BID if \>=15 to \<=40 kg)
2EXPERIMENTALTreatment naive or experienced pediatric patients (Group 2: ages 7 to 12 years; Group 3: ages 13-17 years) received emtricitabine (6 mg/kg QD, up to 200 mg QD capsule formulation or up to 240 mg QD using the oral solution) plus didanosine (240 mg/m2 up to 400 mg QD) plus efavirenz (up to 600 mg QD capsule formulation or up to 720 mg QD using the oral solution).
Interventions
NameTypeDescription
emtricitabine, FTC (drug)DRUG -
didanosine, ddI (drug)DRUG -
efavirenz (drug)DRUG -
Emtricitabine (FTC)DRUGCapsule containing 200 mg FTC, taken once daily, for 96 weeks
Tenofovir Disoproxil Fumarate (TDF)DRUGTablet containing 300 mg TDF, taken once daily, for 96 weeks
Efavirenz (EFV)DRUGTablet containing 600 mg EFV, taken once daily, for 96 weeks
FTC/TDFDRUGFixed-dose combination tablet containing FTC 200 mg/TDF 300 mg, once daily, from Week 96 to 144
FTC/TDF/EFVDRUGFixed-dose combination tablet containing FTC 200 mg/TDF 300 mg/EFV 600 mg, taken once daily, from Week 144 to 240
Lamivudine/zidovudineDRUGFixed-dose combination tablet containing lamivudine 150 mg/zidovudine 300 mg, taken twice daily, for 240 weeks
EmtricitabineDRUGemtricitabine (6mg/kg QD; max 200 mg QD) plus stavudine 1 mg/kg BID (if \<30kg)plus lopinavir/ritonavir (12/3 mg/kg BID if \>=7 to \<15kg; 10/2.5 mg/kg BID if \>=15 to \<=40 kg)
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo

Inclusion Criteria: * HIV infected adults * Antiretroviral treatment since 6 months, with two nucleoside analogues and one or two protease inhibitors * CD4 cell count over 100/mm3 * HIV RNA below 400 copies/ml since 6 months * Signed written informed consent Exclusion Criteria: * Previous treatme...

Countries:United StatesRomania
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