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Raltegravir/3TC

Juan A. Arnaiz · Phase 3 active Small molecule ✓ Verified May 2026

Raltegravir/3TC is a Integrase strand transfer inhibitor (INSTI) and Nucleoside reverse transcriptase inhibitor (NRTI) combination Small molecule drug developed by Juan A. Arnaiz. It is currently in Phase 3 development for Treatment of HIV-1 infection in adults and pediatric patients 4 weeks of age and older without antiretroviral treatment experience and with a viral load of 100,000 copies/mL or greater.

Raltegravir/3TC is an integrase strand transfer inhibitor (INSTI) and a nucleoside reverse transcriptase inhibitor (NRTI) combination used to treat HIV-1 infection.

Raltegravir, in combination with 3TC (lamivudine or emtricitabine), is used to treat HIV infections. Raltegravir is a small molecule that works by inhibiting the integrase enzyme of the HIV virus.

Likelihood of approval
60.3% vs 58.3% industry baseline
If approved by FDA: likely 2028–2030
Steps remaining: NDA/BLA submission
Confidence: High
Why this estimate
  • Baseline phase 3 → approval rate +58.3pp
    Industry-wide phase 3 drugs reach approval ~58.3% of the time (BIO/Informa 2023 industry benchmark across all therapeutic areas).
  • Anti-infectives pathway favourability +2.0pp
    Microbiological endpoints + non-inferiority designs raise approval rates above baseline.
Predicted approval windows by jurisdiction (conditional on FDA approval)
Regulator Country Likely year Lag vs FDA
FDA US 2028–2030
EMA EU 2029–2031 +0.7 yr
MHRA GB 2029–2031 +0.7 yr
Health Canada CA 2029–2032 +0.9 yr
TGA AU 2029–2032 +1.2 yr
PMDA JP 2029–2032 +1.5 yr
NMPA CN 2030–2033 +2.3 yr
MFDS KR 2029–2032 +1.4 yr
CDSCO IN 2029–2033 +1.8 yr
ANVISA BR 2030–2033 +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 nameRaltegravir/3TC
SponsorJuan A. Arnaiz
Drug classIntegrase strand transfer inhibitor (INSTI) and Nucleoside reverse transcriptase inhibitor (NRTI) combination
TargetIntegrase enzyme
ModalitySmall molecule
Therapeutic areaInfectious Disease
PhasePhase 3

Mechanism of action

This combination works by inhibiting the integrase enzyme, which is essential for the replication of HIV-1, and also by incorporating nucleoside analogs into the viral DNA, thereby terminating its replication. The combination of these two mechanisms provides a synergistic effect, making it more effective in suppressing HIV-1 replication.

Approved indications

Common side effects

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 Raltegravir/3TC

What is Raltegravir/3TC?

Raltegravir/3TC is a Integrase strand transfer inhibitor (INSTI) and Nucleoside reverse transcriptase inhibitor (NRTI) combination drug developed by Juan A. Arnaiz, indicated for Treatment of HIV-1 infection in adults and pediatric patients 4 weeks of age and older without antiretroviral treatment experience and with a viral load of 100,000 copies/mL or greater.

How does Raltegravir/3TC work?

Raltegravir/3TC is an integrase strand transfer inhibitor (INSTI) and a nucleoside reverse transcriptase inhibitor (NRTI) combination used to treat HIV-1 infection.

What is Raltegravir/3TC used for?

Raltegravir/3TC is indicated for Treatment of HIV-1 infection in adults and pediatric patients 4 weeks of age and older without antiretroviral treatment experience and with a viral load of 100,000 copies/mL or greater.

Who makes Raltegravir/3TC?

Raltegravir/3TC is developed by Juan A. Arnaiz (see full Juan A. Arnaiz pipeline at /company/juan-a-arnaiz).

What drug class is Raltegravir/3TC in?

Raltegravir/3TC belongs to the Integrase strand transfer inhibitor (INSTI) and Nucleoside reverse transcriptase inhibitor (NRTI) combination class. See all Integrase strand transfer inhibitor (INSTI) and Nucleoside reverse transcriptase inhibitor (NRTI) combination drugs at /class/integrase-strand-transfer-inhibitor-insti-and-nucleoside-reverse-transcriptase-inhibitor-nrti-combination.

What development phase is Raltegravir/3TC in?

Raltegravir/3TC is in Phase 3.

What are the side effects of Raltegravir/3TC?

Common side effects of Raltegravir/3TC include Nausea, Diarrhea, Fatigue.

What does Raltegravir/3TC target?

Raltegravir/3TC targets Integrase enzyme and is a Integrase strand transfer inhibitor (INSTI) and Nucleoside reverse transcriptase inhibitor (NRTI) combination.

Related

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