TheraRadar
Data updated: May 26, 2026

DELSTRIGO (doravirine)

Non-Nucleoside Reverse Transcriptase Inhibitors Trial Activity: Stable 4 active trials
Infectious Disease Approved 2018-08-30

Delstrigo is a combination medication that treats HIV-1 infection in adults and pediatric patients weighing at least 35 kg. It serves as a complete regimen for individuals who have not previously used antiretroviral therapy or for those who are switching from a stable, successful treatment plan. This option helps patients maintain viral suppression when they have no known resistance to the specific drugs included in the tablet.

Source: FDA Label • Merck • Human Immunodeficiency Virus 1 Non-Nucleoside Analog Reverse Transcriptase Inhibitor

How DELSTRIGO Works

This medication works by combining three different antiretroviral agents: doravirine, lamivudine, and tenofovir disoproxil fumarate. These components target the virus using both non-nucleoside and nucleoside analogue reverse transcriptase inhibitors. By interfering with the reverse transcriptase enzyme, the combination helps stop the virus from multiplying within the body.

Development Insights

Merck Sharp & Dohme LLC conducting 8 trials (47%)
10 indications explored (Broad Platform)
hiv-1-infection (4 trials)
hiv-1 infection (3 trials)
hiv infections (2 trials)
4
Indications
--
Phase 3 Trials
1
Priority Reviews
7
Years on Market

Details

Status
Prescription
First Approved
2018-08-30
Patent Cliff
2036

Pro Metrics

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Routes
ORAL
Dosage Forms
TABLET

Companies

DELSTRIGO Approval History

2019
2020
2021
2022
2023
2024
2025
2026
Original
New Indication
New Form
Label Update
7 FDA actions from 2018 to 2025 · 3 indication expansions
Oct 2025 SUPPL
Label · Labeling
Jun 2025 SUPPL
Label · Labeling
Nov 2024 SUPPL
Label · Labeling

What DELSTRIGO Treats

1 indications

DELSTRIGO is approved for 1 conditions since its original approval in 2018. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • HIV-1 Infection
Source: FDA Label

DELSTRIGO Boxed Warning

POSTTREATMENT ACUTE EXACERBATION OF HEPATITIS B Severe acute exacerbations of hepatitis B (HBV) have been reported in people with concomitant HIV-1 and HBV who have discontinued lamivudine or tenofovir disoproxil fumarate (TDF), which are components of DELSTRIGO. Hepatic function should be monitored closely with both clinical and laboratory follow-up for at least several months in patients who are coinfected with HIV-1 and HBV and discontinue DELSTRIGO. If appropriate, initiation of anti-hepatit...

DELSTRIGO Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

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Clinical Trial Registry

17 trials
Trial Sponsor ID Phase Status Title
NCT04375800 1439-066 MK-1439-066, 2019-003955-13 Ph 2 recruiting Doravirine (DOR) in Human Immunodeficiency Virus (HIV)-Infected Children Aged 4 Weeks to <12 Years and <45 kg (MK-1439-066)
NCT04900974 results posted 20-0052 Ph 1 completed Single Dose Pharmacokinetics of Doravirine in HIV-infected Pregnant Women
NCT05630638 DoraDO UoL001707 Ph 4 recruiting Doravirine Dose Optimisation in Pregnancy
NCT04233372 DORAVIPEP results posted DORAVIPEP 2019-004140-30 Ph 4 completed Evaluation of (Doravirine / Lamivudine / Tenofovir Disoproxil Fumarate) (Delstrigo®) as a New Strategy for Non-occupational Post Exposure Prophylaxis, a Prospective Open Label Study
NCT05924438 Opti-DOR EZ-JW-033 DOH-27-052023-5232 Ph 3 active not recruiting A Randomised, Phase 3 Non-inferiority Study of DOR/3TC/TDF Compared to DTG/TAF/FTC in Participants Infected With HIV-1 Starting First-line Antiretroviral Therapy
NCT02275780 DRIVE-FORWARD results posted 1439-018 MK-1439-018, 2014-001127-69 Ph 3 completed Safety and Efficacy of Doravirine (MK-1439) in Participants With Human Immunodeficiency Virus 1 (HIV-1) (MK-1439-018)
NCT03894124 results posted CRF001 2019-000978-33 Ph 1 completed Pharmacokinetics of Plasma Doravirine Once Daily Over 72 Hours Following Drug Intake Cessation in Healthy Volunteers
NCT04689737 results posted Dora-HD Ph 4 completed Removal of Doravirine by Hemodialysis in HIV-Infected Patients With End-stage Renal Disease (ESRD)
NCT04892654 DORDOL CW004 2020-003928-17 Ph 3 recruiting Efficacy of Doravirine + Dolutegravir Dual Therapy in the Context of Antiretroviral Therapy Switch
NCT03272347 results posted 8591-011 2017-000437-32 Ph 2 completed Islatravir (MK-8591) With Doravirine and Lamivudine in Participants Infected With Human Immunodeficiency Virus Type 1 (MK-8591-011)
NCT04097925 results posted DORAGEN 2018-003921-27 Ph 2 completed Doravirine Concentrations and Antiviral Activity in Genital Fluids in HIV-1 Infected Individuals
NCT04079452 results posted DORACeNeS 2018-003915-24 Ph 3 completed Doravirine Concentrations and Antiviral Activity in Cerebrospinal Fluid in HIV-1 Infected Individuals
NCT01632345 results posted 1439-007 MK-1439-007, 2012-001573-93 Ph 2 completed A Dose-Ranging Study to Compare Doravirine (MK-1439) Plus TRUVADA® Versus Efavirenz Plus TRUVADA® in Human Immunodeficiency Virus (HIV)-1 Infected Participants (MK-1439-007)
NCT02715700 results posted 1439-045 MK-1439-045 Ph 1 completed Effects of Doravirine (MK-1439) on Methadone Pharmacokinetics in Methadone-Maintained Participants (MK-1439-045)
NCT01466985 results posted 1439-005 2011-003508-19, MK-1439-005 Ph 1 completed A Study of Doravirine (MK-1439) in Human Immunodeficiency Virus Type 1 (HIV-1)-Infected Participants (MK-1439-005)
NCT02641067 results posted 1439-051 MK-1439-051 Ph 1 completed A Study Evaluating the Pharmacokinetics of Doravirine (MK-1439) in Participants With Severe Renal Impairment (MK-1439-051)
NCT02089659 results posted 1439-019 MK-1439-019 Ph 1 completed A Study to Investigate the Influence of Hepatic Insufficiency on the Pharmacokinetics of Doravirine (MK-1439) (MK-1439-019)
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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

DELSTRIGO FDA Label Details

Indications & Usage

FDA Label (PDF)

DELSTRIGO is indicated for the treatment of HIV-1 Infection.

⚠️ BOXED WARNING

WARNING: POSTTREATMENT ACUTE EXACERBATION OF HEPATITIS B Severe acute exacerbations of hepatitis B (HBV) have been reported in people with concomitant HIV-1 and HBV who have discontinued lamivudine or tenofovir disoproxil fumarate (TDF), which are components of DELSTRIGO. Hepatic function should be ...

View full patent landscape →
3 OB patents · 2 families · 127 international docs across 46 countries

DELSTRIGO Patents & Exclusivity

Latest Patent: Nov 2036

Patents (3 active)

US10603282 Expires Nov 29, 2036
US10842751 Expires Nov 29, 2036
US8486975 Expires Aug 30, 2032
Source: FDA Orange Book

Pro Intelligence Preview

Deep insights for DELSTRIGO

Revenue Insights

  • Quarterly revenue tracking
  • Historical trend analysis

Patent Timeline

  • Cliff: 2036
  • 5 active patents

Trial Analysis

  • 17 total trials
  • Stage: Stable

Competitive Landscape

  • 20 similar drugs
  • Same target/indication analysis
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Full approval history • All patents • Revenue trends • Competitor analysis

Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment