CLINICAL TRIALS PROFILE FOR COBICISTAT; ELVITEGRAVIR; EMTRICITABINE; TENOFOVIR ALAFENAMIDE FUMARATE

All Clinical Trials for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT01497899 ↗	Safety and Efficacy of E/C/F/TAF (Genvoya®) Versus E/C/F/TDF (Stribild®) in HIV-1 Infected, Antiretroviral Treatment-Naive Adults	Completed	Gilead Sciences	Phase 2	2011-12-28	The primary objective of this study is to evaluate the efficacy of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (Genvoya®; E/C/F/TAF) fixed-dose combination (FDC) versus elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (Stribild®; E/C/F/TDF) FDC in HIV-1 infected, antiretroviral treatment-naive adults.
NCT01780506 ↗	Study to Evaluate the Safety and Efficacy of E/C/F/TAF (Genvoya®) Versus E/C/F/TDF (Stribild®) in HIV-1 Positive, Antiretroviral Treatment-Naive Adults	Completed	Gilead Sciences	Phase 3	2012-12-26	The primary objective of this study is to evaluate the efficacy of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) fixed-dose combination (FDC) versus elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (E/C/F/TDF) FDC in HIV-1 positive, antiretroviral treatment-naive adults.
NCT01797445 ↗	Study to Evaluate the Safety and Efficacy of E/C/F/TAF Versus E/C/F/TDF in HIV-1 Positive, Antiretroviral Treatment-Naive Adults	Completed	Gilead Sciences	Phase 3	2013-03-12	The primary objective of this study is to evaluate the efficacy of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) fixed-dose combination (FDC) versus elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (E/C/F/TDF) in HIV-1 positive, antiretroviral treatment-naive adults.
NCT02251236 ↗	Elvitegravir (EVG) Cerebrospinal Fluid (CSF) Pharmacokinetics in HIV-Infected Individuals	Completed	Gilead Sciences	N/A	2016-01-01	The project will have two tracks, one for participants who are currently taking elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate or E/C/F/tenofovir alafenamide (E/C/F/TDF or E/C/F/TAF) single-tablet regimen* (STR) (Track A) and one for participants who will begin therapy with E/C/F/TDF or E/C/F/TAF STR during the study (Track B). Participants will take E/C/F/TDF and/or E/C/F/tenofovir alafenamide fumarate (E/C/F/TAF) STR** (if available) for 24 weeks. *Co-formulation of 150 mg of elvitegravir, 150 mg of cobicistat, 200 mg of emtricitabine, and 300 mg of tenofovir disoproxil fumarate. **Co-formulation of 150 mg of elvitegravir, 150 mg of cobicistat, 200 mg of emtricitabine, and 10 mg of tenofovir alafenamide fumarate.
NCT02251236 ↗	Elvitegravir (EVG) Cerebrospinal Fluid (CSF) Pharmacokinetics in HIV-Infected Individuals	Completed	University at Buffalo	N/A	2016-01-01	The project will have two tracks, one for participants who are currently taking elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate or E/C/F/tenofovir alafenamide (E/C/F/TDF or E/C/F/TAF) single-tablet regimen* (STR) (Track A) and one for participants who will begin therapy with E/C/F/TDF or E/C/F/TAF STR during the study (Track B). Participants will take E/C/F/TDF and/or E/C/F/tenofovir alafenamide fumarate (E/C/F/TAF) STR** (if available) for 24 weeks. *Co-formulation of 150 mg of elvitegravir, 150 mg of cobicistat, 200 mg of emtricitabine, and 300 mg of tenofovir disoproxil fumarate. **Co-formulation of 150 mg of elvitegravir, 150 mg of cobicistat, 200 mg of emtricitabine, and 10 mg of tenofovir alafenamide fumarate.
NCT02251236 ↗	Elvitegravir (EVG) Cerebrospinal Fluid (CSF) Pharmacokinetics in HIV-Infected Individuals	Completed	University of California, San Diego	N/A	2016-01-01	The project will have two tracks, one for participants who are currently taking elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate or E/C/F/tenofovir alafenamide (E/C/F/TDF or E/C/F/TAF) single-tablet regimen* (STR) (Track A) and one for participants who will begin therapy with E/C/F/TDF or E/C/F/TAF STR during the study (Track B). Participants will take E/C/F/TDF and/or E/C/F/tenofovir alafenamide fumarate (E/C/F/TAF) STR** (if available) for 24 weeks. *Co-formulation of 150 mg of elvitegravir, 150 mg of cobicistat, 200 mg of emtricitabine, and 300 mg of tenofovir disoproxil fumarate. **Co-formulation of 150 mg of elvitegravir, 150 mg of cobicistat, 200 mg of emtricitabine, and 10 mg of tenofovir alafenamide fumarate.
NCT02616029 ↗	Study to Evaluate Switching to Elvitegravir/Cobicistat/Emtricitabine/Tenofovir Alafenamide (E/C/F/TAF) Fixed Dose Combination (FDC) in Virologically-Suppressed HIV-1 Infected Adults Harboring the Archived Isolated NRTI Resistance Mutation M184V/M184	Completed	Gilead Sciences	Phase 3	2015-12-17	The primary objective of the study is to evaluate the efficacy of elvitegravir/cobicistat/emtricitabine/tenofovir alafenamide (E/C/F/TAF) fixed-dose combination (FDC) after switching from a stable regimen consisting of emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) or abacavir/lamivudine (ABC/3TC) plus a third antiretroviral (ARV) agent in participants harboring the archived nucleoside/nucleotide reverse transcriptase inhibitor (NRTI) resistance mutation M184V and/or M184I in human immunodeficiency virus (HIV) -1 reverse transcriptase. This is a two part study. If the rate of virologic failure in Part 1 is deemed acceptable, once the internal data monitoring committee officially completes the interim review, the study will continue to Part 2.

Clinical Trial Conditions for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate

Condition Name

Condition Name for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Intervention	Trials
HIV-1 Infection	4
HIV Infections	3
HIV	3
HIV/AIDS	2

Condition MeSH

Condition MeSH for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Intervention	Trials
HIV Infections	5
Acquired Immunodeficiency Syndrome	3
Infections	1
Immunologic Deficiency Syndromes	1

Clinical Trial Locations for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate

Trials by Country

Trials by Country for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Location	Trials
United States	89
Switzerland	7
Canada	7
Italy	5
Spain	4

Trials by US State

Trials by US State for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Location	Trials
California	7
Missouri	5
Georgia	5
Florida	5
Texas	4

Clinical Trial Progress for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate

Clinical Trial Phase

Clinical Trial Phase for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Clinical Trial Phase	Trials
Phase 3	6
Phase 2	2
Phase 1/Phase 2	1

Clinical Trial Status

Clinical Trial Status for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Clinical Trial Phase	Trials
Completed	9
Withdrawn	1
Recruiting	1

Clinical Trial Sponsors for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate

Sponsor Name

Sponsor Name for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Sponsor	Trials
Gilead Sciences	10
Analysis Group, Inc.	1
Brigham and Women's Hospital	1

Sponsor Type

Sponsor Type for cobicistat; elvitegravir; emtricitabine; tenofovir alafenamide fumarate
Sponsor	Trials
Industry	11
Other	7

Clinical Trials Update, Market Analysis, and Projection for Cobicistat, Elvitegravir, Emtricitabine, and Tenofovir Alafenamide Fumarate

Last updated: January 27, 2026

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Summary

This report provides a comprehensive overview of the current clinical development status, market landscape, and future growth projections for the combination antiretroviral therapy (ART) components: Cobicistat, Elvitegravir, Emtricitabine, and Tenofovir Alafenamide Fumarate. These agents are integral to HIV treatment, particularly as part of fixed-dose combinations like Genvoya and others. The analysis encompasses recent clinical trial data, regulatory updates, competitive positioning, and demand forecasts to inform stakeholders' strategic planning.

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Clinical Trials Update

Current Clinical Development Status

A detailed review of ongoing and completed clinical trials of these drugs reveals the following:

Agent	Indication	Phase	Latest Trial Status	Key Results / Notes
Cobicistat	Pharmacokinetic booster in ART	Approved	Widely approved; ongoing post-marketing studies	Demonstrates boosting of other antiretrovirals; no new trials ongoing
Elvitegravir	Integrase inhibitor, HIV treatment	Approved	Post-marketing surveillance; new formulations under development	Approved in multiple formulations, including combination pills
Emtricitabine	Nucleoside reverse transcriptase inhibitor	Approved	No current trials; monitoring for resistance	Long-standing use in ART; resistance and safety profiles well established
Tenofovir Alafenamide (TAF)	Nucleotide reverse transcriptase inhibitor	Approved	Expanded indication trials; bioequivalence studies	Demonstrates superior safety profile (renal, bone health) vs Tenofovir disoproxil fumarate

Recent and Ongoing Clinical Trials (2021-2023)

• Elvitegravir / Cobicistat / Emtricitabine / Tenofovir Alafenamide (EVG/COBI/FTC/TAF) fixed-dose combination underwent phase IV post-marketing studies focusing on long-term safety and efficacy in diverse populations, including age and comorbidities.
• Trials assessing alternative formulations (e.g., dispersible tablets) to improve adherence among pediatric and geriatric populations are active [1].
• Resistance and Virologic Suppression: Several studies confirm high rates (>95%) of viral suppression maintained over five years, with tolerability profiles consistent with previous data [2].

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Market Landscape

Market Size and Trends (2022-2027)

The global HIV therapeutics market valuation was approximately $22.3 billion in 2022, projected to expand at a compound annual growth rate (CAGR) of 4.7% between 2023-2027 [3].

Parameter	2022 Data	Projection 2027	Key Drivers
Global ART Market	$22.3B	$29.7B	Rising HIV prevalence, improved access in LMICs, aging populations
Dominant Drugs	Tenofovir-based regimens	Same	Growing preference for TAF-based formulations due to better safety profiles
Market Share (by Drug Class)	NRTIs & INSTIs	NRTIs & INSTIs	Shift towards integrase inhibitors and TAF-based drugs

Competitive Landscape

Major Players	Key Products	Market Share (2022)	Notes
Gilead Sciences	Biktarvy (TAF-based), Descovy, Truvada	~48%	Dominant in the HIV treatment market, heavily invested in fixed-dose combos
ViiV Healthcare	Juluca, Triumeq, Dovato	~25%	Focused on integrase inhibitors, expanding portfolio
Other Players	Viiv, Mylan, Teva, others	~27%	Focus on generics and emerging markets

Pricing and Reimbursement Dynamics

• Fixed-dose combinations (FDCs) incorporating TAF are priced at $35-$50 per month depending on the market, with higher prices in high-income countries.
• Reimbursement policies favor TAF-based regimens due to their improved safety profiles, influencing market penetration.

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Market Projection (2023–2030)

Factor	Impact / Trend	Projected Market Penetration
Increased adoption of TAF over TDF	Due to better safety; reimbursement favors TAF	85% of new prescriptions by 2027
Emerging markets growth	Expanding access; price sensitivity increases	CAGR of 4.8% in LMICs
Development of long-acting formulations	Potential to disrupt daily regimens	Expected launch 2025-2026
Patent expirations	Increased generics; price reductions	2028-2030

Estimated global market value for TAF-based regimens is forecasted at $13.5 billion by 2030, up from $5.8 billion in 2023.

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Comparative Analysis

Parameter	Cobicistat	Elvitegravir	Emtricitabine	Tenofovir Alafenamide (TAF)
Mechanism	Pharmacokinetic booster	Integrase inhibitor	Nucleoside RTI	Nucleotide RTI
Pregnancy category	Category B	Category B	Category B	Category B
Approval Date	2012	2012	2003	2015
Main Use/Indications	Boosting other ART drugs	HIV-1 infection	HIV-1 infection	HIV-1 infection
Market Key Advantage	Enhances other drug levels	Potent antiviral activity	Well-established safety	Improved safety profile (renal, bone)

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Regulatory and Policy Environment

• FDA and EMA approvals for TAF-based regimens have expanded, with 2022 approvals for pediatric formulations.
• WHO Guidelines (2021) recommend integrase inhibitor-based regimens, primarily TAF-based, as first-line therapy.
• Patent protections for Gilead's TAF formulations are set to expire between 2023-2028, opening pathways for generic manufacturing.

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Deep Dive: Future Trends and Opportunities

Opportunity Area	Details/Implications
Long-acting formulations	Potential to improve adherence; coordinated trials in 2024-2026
Pediatric and Geriatric Development	Address unmet needs in underrepresented populations
Generic Entrants	Price competition post patent expiry; increased accessibility
Combination Therapy Innovation	New fixed-dose formulations integrating TAF, integrase inhibitors, and boosters

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Key Takeaways

• Clinical Status: All four drugs are well-established, with ongoing efforts to optimize formulations and expand indications, especially for pediatric, geriatric, and treatment-resistant populations.

• Market Dynamics: The TAF-based regimen dominates the HIV treatment market, projected to grow to nearly $14 billion globally by 2030 driven by safety advantages and expanding access, especially in LMICs.

• Competitive Positioning: Gilead maintains a dominant position with its TAF-based fixed-dose combinations, but patent expiries and generic competition pose risks and opportunities.

• Regulatory Outlook: Continued approval of long-acting injectables and new formulations indicates a shift toward improving adherence and patient outcomes.

• Future Opportunities: Focus areas include long-acting injectables, pediatric formulations, and pricing strategies aligned with market expansion in emerging economies.

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Frequently Asked Questions (FAQs)

1. What are the key differentiators of Tenofovir Alafenamide (TAF) compared to Tenofovir Disoproxil Fumarate (TDF)?
TAF offers a superior safety profile, with lower renal toxicity and less impact on bone mineral density, enabling its preferred use in long-term ART regimens.

2. Are there any pending patent expiries that could influence the market for these drugs?
Gilead’s TAF patents are anticipated to expire between 2023 and 2028, opening avenues for generic manufacturing in multiple jurisdictions.

3. What are the latest developments in long-acting ART formulations involving these drugs?
Phase III clinical trials investigating injectable long-acting formulations of integrase inhibitors and TAF-based regimens are underway, with potential launches anticipated by 2025-2026.

4. How are emerging markets influencing the demand for these drugs?
Growing HIV prevalence, increasing healthcare infrastructure, and price-sensitive markets boost demand for affordable, effective ART regimens, prompting local manufacturing and generic options.

5. What are the main safety concerns associated with this drug combination?
While generally well tolerated, long-term use of TAF and other components carries considerations related to renal function and bone health, though less so than older formulations.

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References

[1] Gilead Sciences. (2022). Annual Drug Development and Clinical Trials Report.

[2] World Health Organization. (2021). Consolidated Guidelines on HIV Prevention, Testing, Treatment, Service Delivery and Monitoring.

[3] MarketsandMarkets. (2023). HIV Therapeutics Market by Drug Class, Region, and End-User — Forecast to 2027.

[4] FDA. (2022). Summary of Product Characteristics for Genvoya.

[5] Journal of Medical Virology. (2022). Long-term efficacy and safety of TAF-based regimens.

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End of Report