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Emtricitabine

Phase 3

HIV Infections | Small molecule | Infectious Disease |Gilead Sciences, Inc.|Last Updated: Apr 26, 2018

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials2
Total Enrollment533

FDA Designations

No designations recorded

Clinical trial landscape

Emtricitabine · 4 trials · 3 indications

Phase 3 1Phase 2 3
NCT00112047Tenofovir Disoproxil Fumarate/Emtricitabine/Efavirenz Versus Combivir/Efavirenz in Antiretroviral-Naive HIV-1 Infected SubjectsHIV Infections
COMPLETED517 Analytics
PHASE3COMPLETED
Tenofovir Disoproxil Fumarate/Emtricitabine/Efavirenz Versus Combivir/Efavirenz in Antiretroviral-Naive HIV-1 Infected Subjects
HIV InfectionsUnlock trial analytics

Study Endpoints

Primary Endpoints

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.

HBV DNA suppression to levels below the limit of detection (<400 copies/ml)
week 48
Number of Participants Who Had Access to, and Received the Intervention
Up to 586 weeks

This endpoint has been included to satisfy the requirements of ClinicalTrials.gov. However, there were no prespecified endpoints in this study.

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

Percentage of Participants With Confirmed Plasma HIV-1 RNA < 50 c/mL at Week 48 (Defined by FDA TLOVR Algorithm)
Week 48
Percentage of Participants With Plasma HIV-1 RNA < 400 c/mL at Week 48.
48 weeks
Percentage of Participants With HIV-1 RNA < 50 c/mL at Week 48
48 Weeks
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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.
1ACTIVE_COMPARATORAZT+FTC+EFV
2ACTIVE_COMPARATORTDF+FTC+EFV
EmtricitabineEXPERIMENTALParticipants will receive emtricitabine for as long as they continue to meet specific virologic criteria and until either: (1) the participant chooses to discontinue treatment of emtricitabine and withdraw from the rollover protocol; (2) the participant experiences a toxicity that necessitates the permanent discontinuation of emtricitabine, or (3) emtricitabine is approved for market distribution in the participant's country of residence.

Interventions

NameTypeDescription
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 200 mg OD + Zidovudine 300 mg BID + EFV OD compared to TDF + FTC + EFV
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: Participants must have met all inclusion criteria within 28 days prior to randomization unless specified otherwise including: * Plasma HIV-1 RNA levels greater than 10,000 c/mL using Roche Amplicor HIV-1 Monitor Test Version 1.5 Standard * Adequate renal function: Calculated cre...

Countries:United StatesThailandSouth AfricaRomania
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Frequently asked questions about Emtricitabine

What is Emtricitabine used for?

Emtricitabine is an investigational small molecule being studied for the treatment and prevention of HIV infections, including HIV-1, and for hepatitis B virus. It is also being evaluated in studies related to the acceptability of health care and medication adherence. Emtricitabine is in Phase 3 clinical development.

What does Emtricitabine target?

Emtricitabine is a nucleoside reverse transcriptase inhibitor (NRTI) that works by inhibiting the reverse transcriptase enzyme, which is essential for viral replication. This mechanism is used in the treatment of HIV and hepatitis B virus infections.

Who makes Emtricitabine?

Emtricitabine is developed by Gilead Sciences, Inc., a biopharmaceutical company. Gilead Sciences is publicly traded under the ticker symbol GILD.

What phase is Emtricitabine in?

Emtricitabine is in Phase 3 clinical development. It is not FDA approved and remains investigational. Clinical trials have been completed, including a Phase 3 study with 1,814 participants.

What clinical trials is Emtricitabine in?

Emtricitabine has been studied in several completed trials. Notable trials include NCT00743340, a Phase 2 rollover study in pediatric patients with HIV-1 in South Africa, and NCT00811954, a Phase 3 comparative study of NNRTI-sparing HAART regimens in HIV infection. Other trials include NCT01769456 and NCT05458765, which focused on pre-exposure prophylaxis and PrEP acceptability.

Is Emtricitabine the same as Emtricitabine/tenofovir disoproxil fumarate?

Emtricitabine is a component of the combination product Emtricitabine/tenofovir disoproxil fumarate (F/TDF). While Emtricitabine is the single agent, F/TDF combines emtricitabine with tenofovir disoproxil fumarate. The two are related but not identical.