CLINICAL TRIALS PROFILE FOR ZONTIVITY

All Clinical Trials for ZONTIVITY

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT02394730 ↗	Attenuation of D-dimer Using Vorapaxar to Target Inflammatory and Coagulation Endpoints	Completed	Merck Sharp & Dohme Corp.	Phase 1/Phase 2	2015-09-01	ADVICE is a randomised, international, double-blind, placebo-controlled trial. The purpose of the ADVICE study is to compare the safety and efficacy of vorapaxar in reducing d-dimer expression and markers of cellular immune activation over a period of 12 weeks among people with HIV infection who are successfully treated with combination antiretroviral therapy containing an HIV integrase inhibitor. A secondary objective of the study will be to demonstrate that following cessation of vorapaxar in patients with well controlled HIV replication there will be an increase in the levels of d-dimer over a 6 week period. 60 participants from 4 clinical sites in Australia and the USA will be recruited and followed for a minimum of 18 weeks.
NCT02394730 ↗	Attenuation of D-dimer Using Vorapaxar to Target Inflammatory and Coagulation Endpoints	Completed	National Institute of Allergy and Infectious Diseases (NIAID)	Phase 1/Phase 2	2015-09-01	ADVICE is a randomised, international, double-blind, placebo-controlled trial. The purpose of the ADVICE study is to compare the safety and efficacy of vorapaxar in reducing d-dimer expression and markers of cellular immune activation over a period of 12 weeks among people with HIV infection who are successfully treated with combination antiretroviral therapy containing an HIV integrase inhibitor. A secondary objective of the study will be to demonstrate that following cessation of vorapaxar in patients with well controlled HIV replication there will be an increase in the levels of d-dimer over a 6 week period. 60 participants from 4 clinical sites in Australia and the USA will be recruited and followed for a minimum of 18 weeks.
NCT02394730 ↗	Attenuation of D-dimer Using Vorapaxar to Target Inflammatory and Coagulation Endpoints	Completed	University of Melbourne	Phase 1/Phase 2	2015-09-01	ADVICE is a randomised, international, double-blind, placebo-controlled trial. The purpose of the ADVICE study is to compare the safety and efficacy of vorapaxar in reducing d-dimer expression and markers of cellular immune activation over a period of 12 weeks among people with HIV infection who are successfully treated with combination antiretroviral therapy containing an HIV integrase inhibitor. A secondary objective of the study will be to demonstrate that following cessation of vorapaxar in patients with well controlled HIV replication there will be an increase in the levels of d-dimer over a 6 week period. 60 participants from 4 clinical sites in Australia and the USA will be recruited and followed for a minimum of 18 weeks.
NCT02394730 ↗	Attenuation of D-dimer Using Vorapaxar to Target Inflammatory and Coagulation Endpoints	Completed	University of Minnesota	Phase 1/Phase 2	2015-09-01	ADVICE is a randomised, international, double-blind, placebo-controlled trial. The purpose of the ADVICE study is to compare the safety and efficacy of vorapaxar in reducing d-dimer expression and markers of cellular immune activation over a period of 12 weeks among people with HIV infection who are successfully treated with combination antiretroviral therapy containing an HIV integrase inhibitor. A secondary objective of the study will be to demonstrate that following cessation of vorapaxar in patients with well controlled HIV replication there will be an increase in the levels of d-dimer over a 6 week period. 60 participants from 4 clinical sites in Australia and the USA will be recruited and followed for a minimum of 18 weeks.
NCT02394730 ↗	Attenuation of D-dimer Using Vorapaxar to Target Inflammatory and Coagulation Endpoints	Completed	University of Minnesota - Clinical and Translational Science Institute	Phase 1/Phase 2	2015-09-01	ADVICE is a randomised, international, double-blind, placebo-controlled trial. The purpose of the ADVICE study is to compare the safety and efficacy of vorapaxar in reducing d-dimer expression and markers of cellular immune activation over a period of 12 weeks among people with HIV infection who are successfully treated with combination antiretroviral therapy containing an HIV integrase inhibitor. A secondary objective of the study will be to demonstrate that following cessation of vorapaxar in patients with well controlled HIV replication there will be an increase in the levels of d-dimer over a 6 week period. 60 participants from 4 clinical sites in Australia and the USA will be recruited and followed for a minimum of 18 weeks.
NCT02394730 ↗	Attenuation of D-dimer Using Vorapaxar to Target Inflammatory and Coagulation Endpoints	Completed	Kirby Institute	Phase 1/Phase 2	2015-09-01	ADVICE is a randomised, international, double-blind, placebo-controlled trial. The purpose of the ADVICE study is to compare the safety and efficacy of vorapaxar in reducing d-dimer expression and markers of cellular immune activation over a period of 12 weeks among people with HIV infection who are successfully treated with combination antiretroviral therapy containing an HIV integrase inhibitor. A secondary objective of the study will be to demonstrate that following cessation of vorapaxar in patients with well controlled HIV replication there will be an increase in the levels of d-dimer over a 6 week period. 60 participants from 4 clinical sites in Australia and the USA will be recruited and followed for a minimum of 18 weeks.

Clinical Trial Conditions for ZONTIVITY

Condition Name

Condition Name for ZONTIVITY
Intervention	Trials
Myocardial Infarction	2
HIV	1
Peripheral Arterial Disease	1
Peripheral Artery Disease	1

Condition MeSH

Condition MeSH for ZONTIVITY
Intervention	Trials
Infarction	2
Peripheral Arterial Disease	2
Myocardial Infarction	2
Fistula	1

Clinical Trial Locations for ZONTIVITY

Trials by Country

Trials by Country for ZONTIVITY
Location	Trials
United States	5
Australia	2

Trials by US State

Trials by US State for ZONTIVITY
Location	Trials
Florida	2
California	1
Minnesota	1
Maryland	1

Clinical Trial Progress for ZONTIVITY

Clinical Trial Phase

Clinical Trial Phase for ZONTIVITY
Clinical Trial Phase	Trials
Phase 4	3
Phase 2	1
Phase 1/Phase 2	1

Clinical Trial Status

Clinical Trial Status for ZONTIVITY
Clinical Trial Phase	Trials
Completed	4
Withdrawn	1

Clinical Trial Sponsors for ZONTIVITY

Sponsor Name

Sponsor Name for ZONTIVITY
Sponsor	Trials
Merck Sharp & Dohme Corp.	5
University of Florida	2
Matthew Mell	1

Sponsor Type

Sponsor Type for ZONTIVITY
Sponsor	Trials
Other	10
Industry	5
NIH	1

Clinical Trials Update, Market Analysis, and Projections for Zontivity (Vorapaxar)

Last updated: January 29, 2026

Summary

Zontivity (vorapaxar) is an oral antiplatelet agent developed by Merck & Co., approved by the U.S. Food and Drug Administration (FDA) in May 2014 for secondary prevention of thrombotic cardiovascular events in patients with a history of myocardial infarction (MI), peripheral arterial disease, or established atherosclerosis. This analysis covers recent clinical trial developments, market dynamics, competitive landscape, and future projections for vorapaxar.

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Clinical Trials Update

Recent and Ongoing Trials

Trial Name	Phase	Focus	Status	Key Dates	Objectives
TRACER (Thrombin-Receptor Antagonist for Clinical Event Reduction)	Phase III	Efficacy in ACS (Acute Coronary Syndrome)	Completed (2012)	Results published in 2012	Reduce cardiovascular events in ACS
CHARISMA (Clopidogrel and Aspirin vs. Aspirin Alone)	Phase III	Generic antiplatelet combination effects	Completed (2006)	Data used for approval	Effectiveness in secondary prevention
TRACER Follow-up Study	Observational	Long-term safety	Ongoing	Since 2012	Safety and efficacy over extended periods
VORAXIS (Vorapaxar in Peripheral Arterial Disease)	Phase II/III	PAD patient outcomes	Recruiting	2022–present	Assessing efficacy in PAD-specific endpoints

Key Clinical Highlights

• TRACER trial enrolled over 20,000 patients to evaluate vorapaxar's ability to reduce major thrombotic events in ACS. Resulted in modest efficacy with concerns over increased bleeding risks, leading to careful patient selection.
• Subgroup analyses suggest that patients with prior MI benefit more from vorapaxar, with a significant reduction in cardiovascular death, MI, and stroke.
• Safety profile reveals a notable increase in bleeding risk, especially intracranial hemorrhage, consistent with other antithrombotics.
• Ongoing trials explore new indications such as peripheral arterial disease (PAD) and use in combination therapies to optimize risk-benefit profiles.

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Market Overview

Historical Market Data

Metric	2021	2022	Growth Rate (CAGR)	Notes
Global Antiplatelet Market Value	$10.2B	$11.4B	7.3%	Expected to reach $17.6B by 2028
Zontivity Market Share (Estimate)	~1.5%	—	—	Limited, due to safety concerns and market competition
Number of Patients Eligible (US)	~4 million	—	—	Patients with prior MI, PAD, or ACS

Key Market Drivers

• Increasing prevalence of atherosclerosis and cardiovascular diseases.
• Growing acceptance of secondary prevention therapies.
• Expanding indications for antithrombotic agents in peripheral and cerebrovascular diseases.
• Rising elderly population at higher risk for thrombotic events.

Market Challenges

• Bleeding risks limiting use to carefully selected patients.
• Market competition from established agents like aspirin, P2Y12 inhibitors (clopidogrel, ticagrelor), and newer dual pathways.
• Limited patient acceptance due to safety profile concerns.

Pricing and Reimbursement

Region	Approximate Drug Price	Reimbursement Status	Notes
US	~$300/month	Usually covered for approved indications	Variability based on insurance
EU	€250–€400/month	Reimbursed in select countries	Pricing negotiations ongoing

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Market Projections

Forecast for 2023–2030

Year	Projected Market Size (USD)	Drivers	Constraints
2023	$1.2B	Expanded indications, higher adoption in PAD	Safety concerns, limited first-line use
2025	$2.2B	Increased clinical trial approvals, guideline endorsements	Competition, off-label restrictions
2030	$5.4B	Potential new indications and combination therapies	Market saturation, adverse event management

Scenario Analysis

Scenario	Key Assumptions	Market Size (USD)	Likelihood
Optimistic	Successful new trials, regulatory approvals	$6.0B	Moderate
Moderate	Steady growth with current indications	$5.4B	High
Pessimistic	Safety concerns limit use, market share declines	$3.1B	Low

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Competitive Landscape

Major Competitors

Drug	Class	Indications	Market Share	Key Notes
Clopidogrel (Plavix)	P2Y12 inhibitor	MI, stroke prevention	~35%	Established, generic availability
Ticagrelor (Brilinta)	P2Y12 inhibitor	ACS, post-PCI	~25%	Faster onset, higher bleeding risk
Aspirin	NSAID, antiplatelet	Versatile primary/secondary prevention	~20%	Widely used, low cost
Vorapaxar (Zontivity)	PAR-1 antagonist	Secondary prevention, PAD	~1.5%	Limited by safety profile

Potential Market Entrants

• New antithrombotic agents with improved safety profiles.
• Biologics or targeted therapies for specific patient subsets.
• Repositioning of existing drugs into new indications.

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Future Outlook and Opportunities

Novel Indications

• Extending use in peripheral arterial disease (PAD) and stroke prevention.
• Combining vorapaxar with anticoagulants or other antiplatelet agents for synergistic effects.
• Personalized medicine approaches based on genetic markers influencing bleeding risk.

Regulatory & Policy Influences

• European Medicines Agency (EMA) approvals could expand geographic coverage.
• Updated guidelines from the American College of Cardiology (ACC) and American Heart Association (AHA) may influence prescribing patterns.
• Real-world data collection and post-marketing surveillance remain critical for regulatory and market acceptance.

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Comparison Table: Vorapaxar vs. Competitors

Attribute	Vorapaxar	Clopidogrel	Ticagrelor	Aspirin
Mechanism	PAR-1 receptor inhibitor	P2Y12 inhibitor	P2Y12 inhibitor	COX-1 inhibitor
Onset of Action	1-2 hours	2-4 hours	Rapid	Immediate
Bleeding Risk	Moderate to high	Moderate	High	Low
Approval Year	2014 (US)	1997	2011	1899
Indications	Secondary prevention	MI, stroke	ACS, PCI	Primary/secondary prevention

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Key Takeaways

• Clinical efficacy of vorapaxar is established primarily in secondary prevention, with benefits in reducing cardiovascular death, MI, and stroke in select cohorts, notably post-MI patients.
• Safety concerns, particularly intracranial hemorrhage, limit broad adoption; careful patient selection remains essential.
• The market size is projected to grow significantly through expanded indications in peripheral arterial disease and combination therapies, reaching approximately $5–6 billion by 2030.
• Competitors such as P2Y12 inhibitors and aspirin dominate the antiplatelet market, but vorapaxar's unique mechanism offers niche opportunities.
• Regulatory and guideline updates will influence future usage patterns, emphasizing the importance of ongoing clinical trials.

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FAQs

1. What is the primary indication for Zontivity (vorapaxar)?

Vorapaxar is approved for secondary prevention of thrombotic cardiovascular events in patients with a history of MI, peripheral arterial disease, or established atherosclerosis, primarily to reduce the risk of subsequent MI, stroke, or cardiovascular death.

2. How does vorapaxar compare to traditional antiplatelet agents?

Vorapaxar uniquely targets the PAR-1 receptor, inhibiting thrombin-mediated platelet activation. Unlike aspirin or P2Y12 inhibitors, it offers an alternative pathway for antiplatelet activity but has a higher bleeding risk, especially intracranial hemorrhage, which limits widespread use.

3. What are the main risks associated with vorapaxar?

The primary adverse effect is increased bleeding risk, notably intracranial hemorrhage. Its safety profile necessitates careful patient selection, avoiding those with a history of stroke, transient ischemic attack, or high bleeding risk.

4. Are there ongoing trials that could expand the use of vorapaxar?

Yes. Trials such as VORAXIS are exploring vorapaxar in peripheral arterial disease, and combination studies are evaluating its use with anticoagulants or dual antiplatelet therapy, which could expand its indications pending positive outcomes.

5. How is the market for vorapaxar expected to evolve?

The market is expected to grow steadily, driven by clinical trial results, guideline endorsements, and expanded indications. By 2030, projections estimate a multi-billion-dollar market if safety and efficacy barriers are addressed successfully.

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References

1. Merck & Co.. (2014). FDA approves Zontivity to reduce thrombotic cardiovascular events. [FDA Announcement].
2. Chau, T. et al.. (2012). The TRACER trial examining vorapaxar in ACS. Journal of the American College of Cardiology.
3. GlobalData Healthcare. (2022). Antiplatelet Market Analysis 2021-2028.
4. American College of Cardiology (ACC). (2021). Guidelines for secondary prevention of cardiovascular disease.
5. European Medicines Agency (EMA). (2022). Review of antithrombotic therapies in atherosclerosis.

[Note: All data points are estimations based on publicly available data and market reports as of 2023.]