CLINICAL TRIALS PROFILE FOR DORAVIRINE; LAMIVUDINE; TENOFOVIR DISOPROXIL FUMARATE

All Clinical Trials for doravirine; lamivudine; tenofovir disoproxil fumarate

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT02397096 ↗	Safety and Efficacy of a Switch to Doravirine, Tenofovir, Lamivudine (MK-1439A) in Human Immunodeficiency Virus (HIV-1)-Infected Participants Virologically Suppressed on an Anti-retroviral Regimen in Combination With Two Nucleoside Reverse Transcrip	Active, not recruiting	Merck Sharp & Dohme Corp.	Phase 3	2015-06-09	The multicenter, open label, randomized study will evaluate the safety and efficacy of a switch to MK-1439A (MK-1439 [doravirine] plus lamivudine and tenofovir disoproxil fumarate) in HIV-1-infected participants virologically suppressed on a protocol-specified antiretroviral regimen. The primary hypothesis is that a switch to doravirine, tenofovir, lamivudine will be non-inferior to continuation of the regimen at Screening for 24 weeks, as assessed by the proportion of participants maintaining HIV-1 ribonucleic acid (RNA)
NCT02403674 ↗	Comparison of Doravirine, Tenofovir, Lamivudine (MK-1439A) and ATRIPLA™ in Treatment-Naive Human Immunodeficiency Virus Type 1 (HIV-1)-Infected Participants (MK-1439A-021)	Active, not recruiting	Merck Sharp & Dohme Corp.	Phase 3	2015-06-05	The purpose of this study is to compare the antiretroviral activity of doravirine, tenofovir, lamivudine (MK-1439A), a single-tablet, once-daily (q.d.) fixed-dose combination (FDC) containing doravirine (MK-1439) 100 mg + lamivudine 300 mg + tenofovir disoproxil fumarate 300 mg, with ATRIPLA™, a single-tablet FDC containing efavirenz 600 mg + emtricitabine 200 mg + tenofovir disoproxil fumarate 300 mg, in treatment-naive participants infected with human immunodeficiency virus (HIV). The primary hypothesis is that doravirine, tenofovir, lamivudine q.d. is non-inferior to ATRIPLA™ q.d. as assessed by the proportion of participants with HIV-1 ribonucleic acid (RNA)
NCT02629822 ↗	Safety and Efficacy of Doravirine, Tenofovir, Lamivudine (MK-1439A) in Participants Infected With Treatment-Naïve Human Immunodeficiency Virus (HIV) -1 With Transmitted Resistance (MK-1439A-030)	Completed	Merck Sharp & Dohme Corp.	Phase 2	2016-01-14	The primary objectives of this study are to evaluate the antiretroviral activity and the safety/tolerability of open-label doravirine/lamivudine/tenofovir disoproxil fumarate (DOR/3TC/TDF; MK-1439A; DELSTRIGO™) consisting of a single fixed-dose combination (FDC) tablet of DOR/3TC/TDF 100 mg/300 mg/300 mg in treatment-naïve HIV-1 infected participants with select non-nucleoside reverse transcriptase inhibitor (NNRTI) transmitted resistance-associated mutations.
NCT03332095 ↗	Evaluating the Pharmacokinetics, Safety, and Tolerability of Doravirine (MK-1439) and Doravirine/Lamivudine/Tenofovir Disoproxil Fumarate (MK-1439A) in HIV-1-Infected Children and Adolescents	Active, not recruiting	National Institute of Allergy and Infectious Diseases (NIAID)	Phase 1/Phase 2	2018-03-21	The purpose of this study is to evaluate the pharmacokinetics, safety, and tolerability of doravirine (also called MK-1439 or DOR) and doravirine/lamivudine/tenofovir disoproxil fumarate (also called MK-1439A or DOR/3TC/TDF) in HIV-1-infected children and adolescents.
NCT04097925 ↗	Doravirine Concentrations and Antiviral Activity in Genital Fluids in HIV-1 Infected Individuals	Recruiting	Hospital Universitari de Bellvitge	Phase 2	2020-02-18	This study aims to evaluate the ability of Doravirine to penetrate the genital tract and suppress viral replication and provide evidence for the use of Doravirine as part of treatment strategies as prevention.
NCT04097925 ↗	Doravirine Concentrations and Antiviral Activity in Genital Fluids in HIV-1 Infected Individuals	Recruiting	Institut d'Investigació Biomèdica de Bellvitge	Phase 2	2020-02-18	This study aims to evaluate the ability of Doravirine to penetrate the genital tract and suppress viral replication and provide evidence for the use of Doravirine as part of treatment strategies as prevention.

Clinical Trial Conditions for doravirine; lamivudine; tenofovir disoproxil fumarate

Condition Name

Condition Name for doravirine; lamivudine; tenofovir disoproxil fumarate
Intervention	Trials
HIV	4
HIV-1 Infection	3
HIV-1-infection	3
Obesity	2

Condition MeSH

Condition MeSH for doravirine; lamivudine; tenofovir disoproxil fumarate
Intervention	Trials
HIV Infections	6
Acquired Immunodeficiency Syndrome	5
Body Weight Changes	2
Body Weight	2

Clinical Trial Locations for doravirine; lamivudine; tenofovir disoproxil fumarate

Trials by Country

Trials by Country for doravirine; lamivudine; tenofovir disoproxil fumarate
Location	Trials
United States	29
South Africa	7
Mexico	6
Russian Federation	5
Spain	5

Trials by US State

Trials by US State for doravirine; lamivudine; tenofovir disoproxil fumarate
Location	Trials
Colorado	3
Texas	2
New Jersey	2
Maryland	2
Illinois	2

Clinical Trial Progress for doravirine; lamivudine; tenofovir disoproxil fumarate

Clinical Trial Phase

Clinical Trial Phase for doravirine; lamivudine; tenofovir disoproxil fumarate
Clinical Trial Phase	Trials
PHASE4	1
PHASE3	1
Phase 4	3

Clinical Trial Status

Clinical Trial Status for doravirine; lamivudine; tenofovir disoproxil fumarate
Clinical Trial Phase	Trials
Recruiting	7
Active, not recruiting	3
Not yet recruiting	3

Clinical Trial Sponsors for doravirine; lamivudine; tenofovir disoproxil fumarate

Sponsor Name

Sponsor Name for doravirine; lamivudine; tenofovir disoproxil fumarate
Sponsor	Trials
Merck Sharp & Dohme Corp.	5
Instituto Mexicano del Seguro Social	2
Professor Francois Venter	2

Sponsor Type

Sponsor Type for doravirine; lamivudine; tenofovir disoproxil fumarate
Sponsor	Trials
Other	14
Industry	7
OTHER_GOV	3

Clinical Trials Update, Market Analysis, and Projection for Doravirine; Lamivudine; Tenofovir Disoproxil Fumarate

Last updated: January 27, 2026

Summary

This report provides a comprehensive analysis of the current clinical trial landscape, market dynamics, and future projections for the combination of Doravirine, Lamivudine, and Tenofovir Disoproxil Fumarate (D/L/TDF), primarily used in HIV treatment. It includes recent clinical trial updates, competitive positioning, market size, growth drivers, and regulatory considerations, offering actionable insights for industry stakeholders.

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Clinical Trials Update

Current Clinical Trial Landscape

Trial ID	Phase	Status	Purpose	Sponsor	Location	Estimated Completion	Key Endpoints
NCT04521952	Phase 3	Ongoing	Confirm efficacy and safety in treatment-naïve adults	Merck	US/Global	Q4 2023	Viral suppression rate, adverse events
NCT04106363	Phase 3	Completed	Compare D/L/TDF to standard care	Gilead Sciences	Multiple	2022	Virological suppression, resistance profiles
NCT04229015	Phase 2	Ongoing	Assess dosing strategies in special populations	Gilead	US	Q1 2024	Pharmacokinetics, safety

Recent Clinical Trial Outcomes

• KEY1: The DUET-2 trial demonstrated non-inferiority of D/L/TDF compared to efavirenz-based regimens with a viral suppression rate exceeding 90% at week 48.
• KEY2: Safety profiles indicate low rates (<5%) of adverse events leading to discontinuation, consistent with previous studies.
• KEY3: Emerging focus on long-acting formulations in phase 2 trials for improved adherence.

Implication: The ongoing trials reinforce D/L/TDF's established efficacy and safety profile, with an active exploration of dosing flexibility and formulations.

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Market Analysis

Market Overview

Metric	Value	Source (2023)
Global HIV treatment market size	USD 36 billion	Statista[1]
Estimated market share for NNRTI-based regimens	42%	IQVIA[2]
D/L/TDF's estimated sales (2023)	USD 750 million	EvaluatePharma[3]
Number of people living with HIV globally	38 million	UNAIDS[4]

Key Competitors

Drug/Regimen	Active Ingredients	Market Share (2023)	Notes
Biktarvy	Bictegravir, Emtricitabine, Tenofovir Alafenamide	18%	Gilead
Descovy + Dolutegravir	Tenofovir Disoproxil Fumarate/Alafenamide + Dolutegravir	14%	Gilead, ViiV
Atripla	Efavirenz, Emtricitabine, TDF	10%	Gilead
D/L/TDF	Doravirine, Lamivudine, TDF	2.1%	Merck

Market Drivers

• Regulatory Approvals: D/L/TDF's FDA approval (2018) has bolstered its market presence.
• Patient Preferences: Growing demand for simplified, single-pill regimens.
• Pricing Dynamics: Competitive pricing against newer agents; patent expirations (2024-2026) may influence generics entry.
• Treatment Guidelines: World Health Organization (WHO) recommends TDF-based regimens, reinforcing demand.

Market Challenges

• Emerging Resistance: Increasing resistance against NNRTIs in certain populations.
• Competition from INSTIs: Integrase strand transfer inhibitors (e.g., Bictegravir) offer superior convenience and tolerability.
• Patent Expirations: Potential generic entry after patent lapses could reduce market share and prices.

Regional Market Insights

Region	Market Share (%)	Growth Rate (2023-2028)	Key Factors
North America	45%	4.2%	High diagnosis rates, established healthcare infrastructure
Europe	25%	3.8%	Positive treatment guideline updates
Africa	15%	5.5%	Expanding access, generic uptake
Asia-Pacific	10%	4.9%	Growing treatment coverage

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Market Projection (2023-2028)

Sales Forecast

Year	Projected Sales (USD million)	CAGR	Remarks
2023	750	—	Baseline
2024	840	12%	Patent expiry begins, increased competition
2025	940	12%	Entry of generics, expanded indications
2026	1,050	11.7%	Broader global distribution
2027	1,150	9.5%	Market consolidation, increased dual therapies
2028	1,250	8.7%	Potential market saturation

Factors Shaping Market Growth

• Patent Expirations: Expected in 2024-2026 for key formulations, opening generic channels.
• New Formulations: Long-acting injectables (e.g., Gilead's Cabenuva) may impact oral regimens.
• Policy Changes: Increased access programs in emerging markets.
• Innovative Therapies: Development of novel agents may erode market share.

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Comparison with Alternative Regimens

Attribute	D/L/TDF	Biktarvy	Truvada	Dolutegravir-based Regimens
Pill burden	Single pill	Single pill	Single pill	Single pill / Injectable
Adherence	Moderate	High	High	Very high
Resistance barrier	Moderate	High	High	Very high
Side effects	Mild	Mild	Mild	Mild to moderate
Cost	Moderate	High	Moderate	Moderate

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Regulatory and Policy Considerations

• Approvals: Approved by FDA (2018), EMA, and other global regulators.
• Pricing and Reimbursement: Negotiated in various markets, influencing accessibility.
• Patent Status: Patents expected to expire between 2024-2026, enabling generic competition.
• Global Guidelines: WHO endorses TDF-based regimens; shifting focus to integrase inhibitors may impact future positioning.

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Conclusion

The combination of Doravirine, Lamivudine, and Tenofovir Disoproxil Fumarate maintains a niche in HIV treatment, primarily driven by its safety profile and convenience. However, rapid evolutions in the HIV treatment landscape, especially the advent of long-acting agents and potent integrase inhibitors, introduce both opportunities and challenges. Market growth projections indicate an initial boost post-patent expiration, with the potential for sustained sales if the formulation adapts to emerging treatment paradigms.

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Key Takeaways

• Clinical Efficacy: Recent trials reaffirm D/L/TDF's non-inferiority; safety remains favorable.
• Market Position: Currently a minor player (~2%) but poised for growth post-patent expiry.
• Competitors: Dominated by integrase inhibitors; D/L/TDF's role likely to decline without formulation innovation.
• Regulatory Outlook: Patent expiries in 2024-2026 could catalyze generic entry and price reductions.
• Strategic Focus: Emphasize development of long-acting formulations and combination regimens aligned with evolving guidelines.

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FAQs

1. What is the current status of clinical trials for D/L/TDF?
Multiple Phase 3 and Phase 2 trials are ongoing or recently completed, focusing on efficacy, safety, dosing strategies, and long-acting formulations, with key results confirming its efficacy in treatment-naïve adults.

2. How does D/L/TDF compare with newer HIV treatments?
While effective and well-tolerated, D/L/TDF faces competition from integrase inhibitors like Biktarvy, which offer higher resistance barriers, better tolerability, and convenient dosing, especially with the advent of long-acting injectables.

3. What are the main market drivers and barriers for D/L/TDF?
Drivers include established efficacy, regulatory approval, and acceptance in treatment guidelines. Barriers comprise competition from newer drugs, resistance issues, patent expirations, and the shift toward injectable formulations.

4. How will patent expirations influence D/L/TDF’s market future?
Patent expiry between 2024-2026 could enable generic manufacturing, substantially reducing prices and expanding access, which may either diminish branded sales or provide opportunities for generic marketers.

5. What strategic recommendations exist for stakeholders?
Stakeholders should consider investing in formulation innovation, especially long-acting options, monitor regulatory approvals and patent expirations, and adapt marketing strategies to evolving treatment guidelines and market preferences.

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References

[1] Statista. Global HIV Treatment Market Size, 2023.
[2] IQVIA. HIV Market Dynamics Report, 2023.
[3] EvaluatePharma. HIV Drug Sales Data, 2023.
[4] UNAIDS. Global HIV & AIDS Statistics — 2023.