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APR 20 2026
APPROVED · 162 DAYS AGO

Merck — Idvynso (doravirine/islatravir) $MRK

for HIV-1 infection in virologically suppressed adults (maintenance regimen)

NDA · Standard Review

FDA approved Idvynso (doravirine/islatravir) on April 20, 2026 — ahead of the May 10 2026 PDUFA target. Once-daily oral two-drug single-tablet regimen for adults with virologically-suppressed HIV-1. First NRTTI-containing complete regimen; positioned as a maintenance alternative to integrase-inhibitor backbones (Biktarvy, Dovato).

About

HIV-1 is a chronic viral infection that attacks the immune system and can progress to life-threatening AIDS if left untreated. Idvynso is a once-daily pill combining doravirine, which blocks the virus from copying its genetic code, and islatravir, which stops that copying process by causing the viral machinery to jam. This two-drug regimen offers a long-term maintenance therapy for those with controlled HIV, potentially reducing the amount of medication needed to keep the virus suppressed.

Pivotal trial

NCT05766501 Phase 3 active not recruiting NCT05766501

The purpose of this study is to evaluate the safety and tolerability of DOR/ISL in adult participants with HIV-1 who had been previously treated with DOR/ISL in earlier clinical studies. There are no formal hypotheses to be tested in this study.

Source: ClinicalTrials.gov

Also in development