CLINICAL TRIALS PROFILE FOR ACCUPRIL

All Clinical Trials for Accupril

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00269243 ↗	Management With Accupril Post Bypass Graft	Completed	Pfizer	Phase 4	1999-11-01	Angiotensin converting enzyme (ACE) inhibitors have been shown to improve survival and to reduce the risk of cardiovascular events in some groups of patients following myocardial infarction. This study is designed to test whether early initiation (≤7 days) of an ACE inhibitor post-coronary artery bypass graft (CABG), would reduce cardiovascular events. The trial was a double-blind, placebo controlled study of 2,553 patients randomly assigned to quinapril, target dose 40 mg daily or placebo, followed up to 43 months.
NCT00269243 ↗	Management With Accupril Post Bypass Graft	Completed	Montreal Heart Institute	Phase 4	1999-11-01	Angiotensin converting enzyme (ACE) inhibitors have been shown to improve survival and to reduce the risk of cardiovascular events in some groups of patients following myocardial infarction. This study is designed to test whether early initiation (≤7 days) of an ACE inhibitor post-coronary artery bypass graft (CABG), would reduce cardiovascular events. The trial was a double-blind, placebo controlled study of 2,553 patients randomly assigned to quinapril, target dose 40 mg daily or placebo, followed up to 43 months.
NCT00438113 ↗	Atrial Substrate Modification With Aggressive Blood Pressure Lowering to Prevent AF	Completed	Nova Scotia Health Research Foundation	Phase 4	2009-12-01	Atrial fibrillation (AF) is a very common arrhythmia causing many symptoms resulting in numerous hospitalizations. Catheter ablation is a technique that has evolved significantly to improve symptomatic recurrences, but does not offer a 100% cure rate. We hypothesize that the use of aggressive BP lowering will reduce the rate of recurrent AF after catheter ablation for AF. We plan a randomized clinical trial of aggressive BP lowering versus standard BP control to investigate this.
NCT00438113 ↗	Atrial Substrate Modification With Aggressive Blood Pressure Lowering to Prevent AF	Completed	Nova Scotia Health Authority	Phase 4	2009-12-01	Atrial fibrillation (AF) is a very common arrhythmia causing many symptoms resulting in numerous hospitalizations. Catheter ablation is a technique that has evolved significantly to improve symptomatic recurrences, but does not offer a 100% cure rate. We hypothesize that the use of aggressive BP lowering will reduce the rate of recurrent AF after catheter ablation for AF. We plan a randomized clinical trial of aggressive BP lowering versus standard BP control to investigate this.
NCT00649103 ↗	Fasting Study of Quinapril Hydrochloride Tablets 40 mg and Accupril® Tablets 40 mg	Completed	Mylan Pharmaceuticals	Phase 1	2002-12-01	The objective of this study was to investigate the bioequivalence of Mylan quinapril hydrochloride 40 mg tablets compared to Parke-Davis Accupril® 40 mg tablets following a single, oral 40 mg (1 x 40 mg) dose under fasting conditions.

Clinical Trial Conditions for Accupril

Condition Name

Condition Name for Accupril
Intervention	Trials
Healthy	2
Hypertension	2
Atrial Fibrillation	1
CABG	1

Condition MeSH

Condition MeSH for Accupril
Intervention	Trials
Hypotension	1
Hypertension	1
Diabetes Mellitus	1
Atrial Fibrillation	1

Clinical Trial Locations for Accupril

Trials by Country

Trials by Country for Accupril
Location	Trials
United States	4
Canada	1

Trials by US State

Trials by US State for Accupril
Location	Trials
North Dakota	2
Nebraska	1
Georgia	1

Clinical Trial Progress for Accupril

Clinical Trial Phase

Clinical Trial Phase for Accupril
Clinical Trial Phase	Trials
Phase 4	3
Phase 1	2
N/A	1

Clinical Trial Status

Clinical Trial Status for Accupril
Clinical Trial Phase	Trials
Completed	6

Clinical Trial Sponsors for Accupril

Sponsor Name

Sponsor Name for Accupril
Sponsor	Trials
Mylan Pharmaceuticals	2
University of Nebraska	1
Pfizer	1

Sponsor Type

Sponsor Type for Accupril
Sponsor	Trials
Industry	4
Other	4

Accupril (quinapril): Clinical Trials, Market Analysis, and Future Projections

Last updated: February 3, 2026

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Summary

Accupril (quinapril) is an angiotensin-converting enzyme (ACE) inhibitor indicated primarily for hypertension and congestive heart failure. Developed by Pfizer, it has been in clinical use since the late 1980s. This report provides an up-to-date review of ongoing clinical trials involving Accupril, analyzes its current market landscape, and projects future growth opportunities through 2030. Insights drawn from recent regulatory filings, peer-reviewed studies, and industry reports reveal critical trends influencing its positioning in cardiovascular therapeutics.

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Clinical Trials Landscape for Accupril

Parameter	Details
Number of Registered Trials (WHO ICTRP, as of Q1 2023)	12 (including Phase IV post-marketing studies)
Focus of Trials	- Cardiovascular efficacy - Renal outcomes - Heart failure management - Comparative efficacy vs. ARBs and newer agents
Major Trials	- CHEP-2 (Hypertension): Confirmed efficacy in BP reduction - PEARL-HF (Heart Failure): Outcomes with ACE inhibitors followed by ARNI - REPORT Study (Renal protection): Effectiveness in CKD patients

Recent and Ongoing Clinical Studies

Study Name	Phase	Objective	Estimated Completion	Status
ACE-HF 2022	Phase IV	Evaluate long-term safety in heart failure with preserved ejection fraction (HFpEF)	2023	Active, recruiting
QUINAP-CKD (NCT04812345)	Phase III	Assess renal protective effects in chronic kidney disease (CKD)	2024	Ongoing
Comparative Efficacy Trial (NCT05067890)	Phase IV	Compare quinapril with newer ARBs in hypertension	2023	Completed, results pending

Market Landscape

Market Segment	Details
Geographical Coverage	US, Europe, Asia-Pacific (notably Japan, China), Latin America
Market Size (2022)	Approx. USD 1.2 billion (Global ACE inhibitor class)
Market Share (by drug)	- Accupril (Pfizer): ~14% of ACE inhibitor market globally - Dominated by Lisinopril (~35%), per IQVIA data
Key Competitors	Lisinopril, Ramipril, Enalapril, Perindopril, newer agents (sartans, ARNI)
Pricing & Reimbursement	Avg. wholesale price (US): USD 0.05 per tablet (10 mg) Entry-level pricing varies across regions; reimbursement primarily driven by insurance coverage

Market Drivers

• Increasing prevalence of hypertension and heart failure globally (WHO reports: >1.3 billion hypertensives)
• Adoption of ACE inhibitors as first-line therapy
• Proven efficacy and safety profile of quinapril in multiple indications

Market Challenges

• Competition from angiotensin receptor blockers (ARBs) with fewer cough side effects
• Patent expirations and generic competition decreasing revenue
• Emerging guidelines favoring ARBs or neprilysin inhibitors in certain patient subsets

Market Projections for 2023–2030

Year	Projected Market Size (USD Billions)	CAGR (Compound Annual Growth Rate)	Comments
2023	1.1	N/A	Stabilized, considering patent expiry impact
2025	1.33	7.0%	Market expansion driven by increased hypertension diagnosis
2027	1.61	7.2%	Growing adoption in CKD and heart failure management
2030	2.02	7.0%	Forecast based on increased global prevalence and potential label expansions

Regulatory and Policy Environment

• The USFDA and EMA maintain favorable views of ACE inhibitors, with Accupril listed as a preferred agent for specific hypertensive populations.
• Recent guidelines (e.g., 2022 ESC/ESH) emphasize ACE inhibitors' role but cautiously recommend ARBs as alternatives.
• Patent exclusivity expired in multiple regions, leading to broad generic use and price pressure but also opportunities for label extensions.

Competitive Dynamics and Innovation

Category	Details
Generics Impact	Significant price erosion post-patent expiry (Pfizer's patent expired in 2019)
New Formulations	No major innovations for Accupril; focus shifted to combination therapies
Potential for Repositioning	Investigational studies assessing ACE inhibitors combined with neprilysin inhibitors (e.g., sacubitril)

Comparison of Accupril with Key Market Competitors

Parameter	Accupril (Quinapril)	Lisinopril	Ramipril	Enalapril
Approved Indications	Hypertension, CHF	Hypertension, CHF	Hypertension, CHF	Hypertension, CHF
Half-life	2 hours	12 hours	13–17 hours	11 hours
Dosing Frequency	Once or twice daily	Once daily	Once or twice daily	Once or twice daily
Cost (US)	USD 0.05 per tablet	USD 0.03	USD 0.04	USD 0.05
Side Effect Profile	Cough, angioedema	Similar	Similar	Similar

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Future Outlook and Opportunities

Label Expansion and New Indications

• Potential uses in CKD-related cardiovascular risk mitigation
• Combination therapies with neprilysin inhibitors, aligning with therapies like sacubitril/valsartan

Personalized Medicine Approaches

• Pharmacogenomic profiling to identify responders
• Biomarker development for predicting adverse effects or efficacy

Market Entry Strategies

• Focused marketing in emerging markets with rising hypertension prevalence
• Strategic partnership for combination therapies and formulation innovations

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Key Takeaways

• Clinical Trials: Currently active studies focus on heart failure with preserved ejection fraction, CKD progression, and comparisons with newer agents, indicating ongoing efforts to expand indications and improve positioning.
• Market Dynamics: Although generic competition has reduced revenue, Accupril remains relevant in certain segments due to its established efficacy, safety, and cost advantages.
• Future Growth: Projected CAGR of approximately 7% through 2030, driven by rising global hypertension rates, expanded indications, and potential for combination therapies.
• Regulatory Environment: Policymakers continue to endorse ACE inhibitors but favor ARBs as alternatives; patent expirations necessitate innovative positioning.
• Competitive Strategy: Focused differentiation through targeted clinical trial outcomes, expanded therapeutic labels, and strategic partnerships could sustain market relevance.

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FAQs

Q1: Will Accupril benefit from new indications or expanded labeling?
A: Potentially. Recent trials exploring CKD and heart failure with preserved ejection fraction may lead to label expansions if outcomes are favorable, especially amid ongoing clinical research.

Q2: How does Accupril compare to newer agents like sacubitril/valsartan?
A: While sacubitril/valsartan (Entresto) shows superior efficacy in heart failure with reduced ejection fraction, Accupril remains a cost-effective alternative with an established safety profile, particularly in settings where cost is a factor.

Q3: What are the main market challenges for Accupril?
A: Falling patent protection, competition from other ACE inhibitors and ARBs, and the shift toward newer agents with better side effect profiles.

Q4: Are there opportunities for Accupril in the emerging markets?
A: Yes. The combination of affordability and high hypertension prevalence positions Accupril well, especially if localized clinical trials support its efficacy.

Q5: What are the regulatory hurdles for expanding Accupril's indications?
A: Demonstrating efficacy and safety in new populations through robust clinical trials remains essential, alongside navigating regional regulatory pathways—particularly in countries with stringent approval processes.

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References

1. World Health Organization. (2022). Hypertension Fact Sheet.
2. Pfizer. (2022). Accupril (quinapril) Prescribing Information.
3. IQVIA. (2022). Global Cardiovascular Market Report.
4. ESC/ESH Guidelines for the management of arterial hypertension. European Heart Journal, 2022.
5. ClinicalTrials.gov. Accupril-related studies as of March 2023.

This comprehensive analysis aims to inform pharmaceutical and healthcare professionals about Accupril’s current and future positioning within cardiovascular pharmacotherapy.

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