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ABC-3TC-EFV once a day

ANRS, Emerging Infectious Diseases · Phase 2 active Small molecule ✓ Verified May 2026 Quality 55/100

ABC-3TC-EFV once a day is a Antiretroviral combination therapy Small molecule drug developed by ANRS, Emerging Infectious Diseases. It is currently in Phase 2 development.

Combines two nucleoside reverse transcriptase inhibitors (abacavir, lamivudine) with one non-nucleoside reverse transcriptase inhibitor (efavirenz) to block HIV replication.

ABC-3TC-EFV is a once-daily antiretroviral treatment for HIV infections. It is a small molecule combination of the drugs Abacavir, Lamivudine, and Efavirenz.

Likelihood of approval
15.3% vs 15.3% industry baseline
If approved by FDA: likely 2031–2034
Steps remaining: Phase 3 → NDA/BLA submission
Confidence: Medium
Why this estimate
  • Baseline phase 2 → approval rate +15.3pp
    Industry-wide phase 2 drugs reach approval ~15.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2031–2034
EMA EU 2032–2035 +0.7 yr
MHRA GB 2032–2035 +0.7 yr
Health Canada CA 2032–2036 +0.9 yr
TGA AU 2032–2036 +1.2 yr
PMDA JP 2032–2036 +1.5 yr
NMPA CN 2033–2037 +2.3 yr
MFDS KR 2032–2036 +1.4 yr
CDSCO IN 2032–2037 +1.8 yr
ANVISA BR 2033–2037 +2.3 yr

Hover any row for the lag rationale. Lag estimates are reduced when the drug has FDA Breakthrough or EMA PRIME designation (sponsors file globally in parallel).

Estimate based on the BIO/Informa industry phase transition rates plus per-drug modifiers for therapeutic area, sponsor type, FDA designations, mechanism, and trial design. Per-jurisdiction lags from Tufts CSDD international approval studies. Not investment, clinical or regulatory advice. Methodology: /methodology#likelihood.

At a glance

Generic nameABC-3TC-EFV once a day
SponsorANRS, Emerging Infectious Diseases
Drug classAntiretroviral combination therapy
ModalitySmall molecule
PhasePhase 2

Mechanism of action

Abacavir and lamivudine are converted to active metabolites that compete with natural substrates and terminate viral DNA chain elongation. Efavirenz binds directly to reverse transcriptase, causing disruption of the enzyme's catalytic site. Together, they provide complementary inhibition of HIV-1 replication.

Approved indications

Common side effects

No common side effects on file.

Key clinical trials

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

Competitive intelligence

For the full competitive landscape — auto-detected comparators, recent regulatory actions across the set, upcoming PDUFA, patent timeline, sponsor landscape:

Frequently asked questions about ABC-3TC-EFV once a day

What is ABC-3TC-EFV once a day?

ABC-3TC-EFV once a day is a Antiretroviral combination therapy drug developed by ANRS, Emerging Infectious Diseases.

How does ABC-3TC-EFV once a day work?

Combines two nucleoside reverse transcriptase inhibitors (abacavir, lamivudine) with one non-nucleoside reverse transcriptase inhibitor (efavirenz) to block HIV replication.

Who makes ABC-3TC-EFV once a day?

ABC-3TC-EFV once a day is developed by ANRS, Emerging Infectious Diseases (see full ANRS, Emerging Infectious Diseases pipeline at /company/anrs-emerging-infectious-diseases).

What drug class is ABC-3TC-EFV once a day in?

ABC-3TC-EFV once a day belongs to the Antiretroviral combination therapy class. See all Antiretroviral combination therapy drugs at /class/antiretroviral-combination-therapy.

What development phase is ABC-3TC-EFV once a day in?

ABC-3TC-EFV once a day is in Phase 2.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing