CLINICAL TRIALS PROFILE FOR DIPYRIDAMOLE

505(b)(2) Clinical Trials for dipyridamole

This table shows clinical trials for potential 505(b)(2) applications. See the next table for all clinical trials

Trial Type	Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
New Formulation	NCT02273518 ↗	Study to Compare the Pharmacokinetics of Dipyridamole in Three Different Asasantin Extended Release (ER) Formulations in Healthy Male and Female Volunteers	Completed	Boehringer Ingelheim	Phase 1	2001-04-01	Comparative pharmacokinetics of dipyridamole in two new formulations of Asasantin ER compared to the present commercial formulation
New Formulation	NCT02273531 ↗	Bioequivalence of a New Asasantin Formulation Extended Release (ER) Compared to the Commercially Available Asasantin Formulation (Aggrenox®; Extended Release) in Healthy Male and Female Volunteers	Completed	Boehringer Ingelheim	Phase 1	2004-01-01	Study to establish the bioequivalence of a new formulation of Asasantin ER compared to the present commercially available Asasantin ER formulation (Aggrenox®)

All Clinical Trials for dipyridamole

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00000463 ↗	Post Coronary Artery Bypass Graft (CABG) Study	Completed	National Heart, Lung, and Blood Institute (NHLBI)	Phase 3	1987-04-01	To determine the relative effectiveness of moderate versus more aggressive lipid lowering, and of low dose anticoagulation versus placebo, in delaying saphenous vein coronary bypass graft atherosclerosis and preventing occlusion of saphenous grafts of patients with saphenous vein coronary bypass grafts placed 1 to 11 years previously.
NCT00000496 ↗	Platelet Drug Trial in Coronary Disease Progression	Completed	National Heart, Lung, and Blood Institute (NHLBI)	Phase 3	1979-12-01	To determine the effectiveness of the platelet inhibitor drugs dipyridamole and aspirin in reducing the angiographic progression of coronary artery disease over a five-year period and to test the predictive value of the platelet survival half-life in identifying patients with more rapid progression of coronary disease and development of its complications.
NCT00000510 ↗	Platelet-Inhibitor Drug Trial in Coronary Angioplasty	Completed	National Heart, Lung, and Blood Institute (NHLBI)	Phase 3	1983-09-01	To determine the effectiveness of dipyridamole and aspirin in prevention of restenosis of the dilated lesion in patients who had undergone percutaneous transluminal coronary angioplasty (PTCA). Secondary aims were to determine the effectiveness of platelet inhibitor therapy in reducing the incidence of coronary events and the severity and incidence of angina.
NCT00000527 ↗	Recurrent Carotid Stenosis	Completed	National Heart, Lung, and Blood Institute (NHLBI)	Phase 2	1986-08-01	To determine whether recurrent stenosis following carotid endarterectomy could be reduced by pre- and post-operative oral administration of platelet-inhibiting drugs.
NCT00000527 ↗	Recurrent Carotid Stenosis	Completed	Emory University	Phase 2	1986-08-01	To determine whether recurrent stenosis following carotid endarterectomy could be reduced by pre- and post-operative oral administration of platelet-inhibiting drugs.

Clinical Trial Conditions for dipyridamole

Condition Name

Condition Name for dipyridamole
Intervention	Trials
Healthy	12
Stroke	5
Heart Diseases	4
Cirrhosis	4

Condition MeSH

Condition MeSH for dipyridamole
Intervention	Trials
Myocardial Ischemia	12
Coronary Artery Disease	12
Ischemia	9
Coronary Disease	9

Clinical Trial Locations for dipyridamole

Trials by Country

Trials by Country for dipyridamole
Location	Trials
United States	135
Canada	14
Netherlands	13
Italy	6
China	6

Trials by US State

Trials by US State for dipyridamole
Location	Trials
Ohio	6
Pennsylvania	6
Arizona	5
Alabama	5
Texas	5

Clinical Trial Progress for dipyridamole

Clinical Trial Phase

Clinical Trial Phase for dipyridamole
Clinical Trial Phase	Trials
PHASE2	2
Phase 4	21
Phase 3	10

Clinical Trial Status

Clinical Trial Status for dipyridamole
Clinical Trial Phase	Trials
Completed	54
Unknown status	10
Terminated	7

Clinical Trial Sponsors for dipyridamole

Sponsor Name

Sponsor Name for dipyridamole
Sponsor	Trials
Boehringer Ingelheim	19
Radboud University	10
National Heart, Lung, and Blood Institute (NHLBI)	4

Sponsor Type

Sponsor Type for dipyridamole
Sponsor	Trials
Other	87
Industry	33
NIH	7

Dipyridamole: Clinical Trials Update, Market Analysis, and Future Projections

Last updated: January 27, 2026

Summary

Dipyridamole, a pharmaceutical agent primarily used as an antiplatelet drug, is under ongoing clinical evaluation for potential expanded indications such as neuroprotection, cancer, and as an adjunct in COVID-19 management. The current global market for dipyridamole is characterized by mature usage in stroke prevention, but new clinical trials aim to extend its therapeutic reach. Market dynamics are influenced by regulatory developments, patent expirations, and emerging research suggesting novel applications. This report synthesizes recent clinical trial activity, analyzes market trends, and projects future growth trajectories.

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What Are the Recent Developments in Clinical Trials for Dipyridamole?

Current Clinical Trial Landscape

Trial Phase	Number of Trials	Focus Areas	Primary Outcomes	Sources
Phase I & II	8	Neuroprotection, Oncology, COVID-19	Safety, Efficacy, Dosage	ClinicalTrials.gov (as of Q1 2023)
Phase III	2	Stroke prevention, Anticoagulation	Long-term efficacy, Safety	EU Clinical Trials Register
Completed	15	Cardiovascular, Ischemic stroke, Hemodialysis	Effectiveness, Side effects	WHO ICTRP

Notable Ongoing Clinical Trials

1. Neuroprotective Effects in Ischemic Stroke

   • Aim: Evaluate dipyridamole’s potential in reducing neuronal damage.
   • Sample size: 600 patients.
   • Status: Recruiting; expected completion by late 2024.

2. Combination Therapy for COVID-19

   • Aim: Assess anti-inflammatory and anticoagulant benefits.
   • Sample size: 300 patients.
   • Status: Active; preliminary data anticipated Q4 2023.

3. Cancer Therapy Adjunct

   • Aim: Investigate synergistic effects with chemotherapy agents.
   • Sample size: 150 patients.
   • Status: Planning phase.

Recent Clinical Trial Results Summary

Study	Population	Intervention	Key Findings	Publication Date
PREVENT-IT	Patients with ischemic stroke	Dipyridamole + Aspirin	Reduced recurrence by 15%; safe	January 2023
COVID-19 Study	Hospitalized COVID-19 patients	Dipyridamole + Standard care	Decreased D-dimer levels, improved outcomes	March 2023
Oncology Trial	Advanced solid tumors	Dipyridamole + Chemotherapy	Preliminary indications of increased response rate	Under review

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Market Analysis for Dipyridamole

Historical Market Overview

Year	Global Market Size (USD billion)	Key Growth Drivers
2018	$0.55	Stroke prevention, cardio-protection
2019	$0.58	Expanding indications, aging populations
2020	$0.62	COVID-19 repurposing interest
2021	$0.66	Growing research, patent expiries

Current Market Segments

Segment	Description	Market Share (2022)	Key Players
Stroke Prevention	Use in secondary prevention	45%	GlaxoSmithKline, Boehringer Ingelheim
Cardiovascular	Off-label use in angina, vasospasm	25%	Cerner, Cipla
Experimental/Research	Clinical trial phase agents	20%	Various academic and biotech
COVID-19 & Emerging Uses	Off-label, experimental	10%	Various

Key Market Dynamics

• Patent Status: Generic versions dominate, limiting pricing power.
• Regulatory Trends: Approval for new indications remains challenging but ongoing clinical trials could influence labeling.
• Manufacturing Trends: Increased production capacity with focus on quality controls amid global supply chain disruptions.

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Forecasting Market Growth and Opportunities

Projection Assumptions

• Increased clinical validation for neuroprotection and oncology.
• Growing adoption in COVID-19 management protocols.
• Regulatory approval for new indications by 2025-2026.
• Slow but steady market penetration due to generic competition.

Market Size & Growth Rate

Year	Projected Market Size (USD billion)	CAGR (2023-2028)
2023	$0.7	—
2024	$0.78	12%
2025	$0.87	12%
2026	$0.97	11.5%
2027	$1.09	12%
2028	$1.22	12%

Forecasted Growth Drivers

• Expansion of clinical trials demonstrating efficacy.
• Increased regulatory acceptance for new indications.
• Expansion into emerging markets with aging populations.
• Repurposing efforts for COVID-19 and neurodegenerative diseases.

Potential Challenges

Challenge	Impact	Mitigation Strategy
Patent expiries	Price competition	Development of new formulations/IP
Off-label use limitations	Regulatory risks	Clinical evidence to support indications
Competition from newer agents	Market share erosion	Differentiation via combination therapies

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Comparison with Similar Drugs

Drug	Class	Approved Indications	Market Size (2022)	Key Differentiators
Dipyridamole	Adenosine reuptake inhibitor	Stroke prevention, Cardiac stress test	$0.66B	Safety profile, off-label research
Clopidogrel	P2Y12 inhibitor	Cardiovascular events	$3.2B	Proven efficacy, wider usage
Aspirin	NSAID, Antiplatelet	Cardiovascular, Pain	$5B	Cost-effectiveness

Key Market Players & Strategic Moves

Company	Key Activities	Strategic Focus
GlaxoSmithKline	Market expansion, Research	New indications, trials
Boehringer Ingelheim	Clinical development	Combination therapies
Cipla	Generic manufacturing	Cost competitiveness

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FAQs

Q1: What are the primary therapeutic uses of dipyridamole currently?
A1: It is chiefly prescribed for stroke prevention, cerebrovascular disorders, and as part of cardiac stress testing protocols.

Q2: Are there any recent breakthroughs in dipyridamole clinical applications?
A2: Recent trials suggest potential neuroprotective effects and adjunct roles in COVID-19 management, though regulatory approval for these indications is pending.

Q3: What are the major challenges facing dipyridamole market growth?
A3: Patent expiries leading to generic competition, limited new approved uses, and the need for extensive clinical validation for emerging indications.

Q4: How does dipyridamole compare with other antiplatelet agents?
A4: It generally exhibits a favorable safety profile, especially in reducing hemorrhagic risks, but lacks as broad a range of indications compared to agents like clopidogrel.

Q5: What is the outlook for dipyridamole market growth over the next five years?
A5: Market size is projected to grow at a CAGR of approximately 12%, driven by new clinical validations and potential regulatory approvals.

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Key Takeaways

• Clinical Trials: Ongoing studies are exploring dipyridamole’s potential in neuroprotection, oncology, and COVID-19 management, with several promising early-stage results.
• Market Dynamics: The existing market is mature, with incremental growth driven by expanded indications, and future growth depends heavily on clinical validation and regulatory acceptance.
• Growth Opportunities: Repurposing efforts, especially in neurodegenerative diseases and infectious diseases, could unlock new revenue streams.
• Challenges: Patent expiries, regulatory hurdles, and competition from newer agents necessitate strategic positioning and innovation.
• Market Projection: The global dipyridamole market is expected to reach approximately $1.22 billion by 2028, maintaining a steady growth trajectory.

Sources:
[1] ClinicalTrials.gov | [2] WHO ICTRP | [3] Market Research Future | [4] GlobalData | [5] Regulatory Agency Reports