CLINICAL TRIALS PROFILE FOR ADENOSCAN

All Clinical Trials for Adenoscan

Trial ID	Title	Status	Sponsor	Phase	Start Date	Summary
NCT00208299 ↗	ADVANCE MPI 1: Study of Regadenoson Versus Adenoscan® in Patients Undergoing Myocardial Perfusion Imaging (MPI)	Completed	Astellas Pharma US, Inc.	Phase 3	2003-10-01	Adenoscan® (adenosine) is an approved pharmacological stress agent indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately. The investigational drug, regadenoson (CVT-3146) is a selective A2A adenosine receptor agonist, the receptor responsible for coronary vasodilation, and is being studied for potential use as a pharmacologic stress agent in myocardial perfusion imaging (MPI) studies. This study will compare the safety and efficacy of regadenoson to that of Adenoscan in detecting reversible myocardial perfusion defects.
NCT00208299 ↗	ADVANCE MPI 1: Study of Regadenoson Versus Adenoscan® in Patients Undergoing Myocardial Perfusion Imaging (MPI)	Completed	Gilead Sciences	Phase 3	2003-10-01	Adenoscan® (adenosine) is an approved pharmacological stress agent indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately. The investigational drug, regadenoson (CVT-3146) is a selective A2A adenosine receptor agonist, the receptor responsible for coronary vasodilation, and is being studied for potential use as a pharmacologic stress agent in myocardial perfusion imaging (MPI) studies. This study will compare the safety and efficacy of regadenoson to that of Adenoscan in detecting reversible myocardial perfusion defects.
NCT00208312 ↗	ADVANCE MPI 2: Study of Regadenoson Versus Adenoscan® in Patients Undergoing Myocardial Perfusion Imaging (MPI)	Completed	Astellas Pharma US, Inc.	Phase 3	2004-04-01	Adenoscan® (adenosine) is an approved pharmacological stress agent indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately. The investigational drug, regadenoson (CVT-3146) is a selective A2A adenosine receptor agonist, the receptor responsible for coronary vasodilation, and is being studied for potential use as a pharmacologic stress agent in myocardial perfusion imaging (MPI) studies. This study will compare the safety and efficacy of regadenoson to that of Adenoscan in detecting reversible myocardial perfusion defects.
NCT00208312 ↗	ADVANCE MPI 2: Study of Regadenoson Versus Adenoscan® in Patients Undergoing Myocardial Perfusion Imaging (MPI)	Completed	Gilead Sciences	Phase 3	2004-04-01	Adenoscan® (adenosine) is an approved pharmacological stress agent indicated as an adjunct to thallium-201 myocardial perfusion scintigraphy in patients unable to exercise adequately. The investigational drug, regadenoson (CVT-3146) is a selective A2A adenosine receptor agonist, the receptor responsible for coronary vasodilation, and is being studied for potential use as a pharmacologic stress agent in myocardial perfusion imaging (MPI) studies. This study will compare the safety and efficacy of regadenoson to that of Adenoscan in detecting reversible myocardial perfusion defects.
NCT00859833 ↗	Effects of Body Mass Index on the Hyperemic Response to Regadenoson	Completed	Astellas Pharma Inc	N/A	2009-02-01	We will test the hypothesis that a single dose of Regadenoson will produce equivalent degrees of coronary hyperemia in patients of widely different body size. This will be a prospective, open-label, comparative trial using MRI to measure myocardial perfusion reserve (ratio of myocardial blood flow with vasodilator to myocardial blood flow at rest) during sequential administration of the coronary vasodilators adenosine and regadenoson. Non-invasive MRI measurements of resting myocardial blood flow, and sequential measurements of blood flow during adenosine infusion (weight adjusted dosing) and then blood flow during regadenoson infusion (single, fixed dose. Blood flow measurements will be obtained sequentially and in the same sequence in each subject during a two hour MRI exam. 32 subjects will be recruited for this study. The first 2 will be for testing of the protocol. Inclusion criteria: 2 subjects for initial protocol evaluation, then 30 subjects with body mass index (BMI) between 18 and 40. Exclusions are pregnancy, renal dysfunction and claustrophobia.

Clinical Trial Conditions for Adenoscan

Condition Name

Condition Name for Adenoscan
Intervention	Trials
Coronary Artery Disease	6
MRI Scans	2
Coronary Microvascular Disease	1
Decreased Vascular Flow	1

Condition MeSH

Condition MeSH for Adenoscan
Intervention	Trials
Coronary Artery Disease	7
Myocardial Ischemia	7
Coronary Disease	6
Heart Failure	1

Clinical Trial Locations for Adenoscan

Trials by Country

Trials by Country for Adenoscan
Location	Trials
United States	66
Brazil	6
Argentina	3
Netherlands	3
Belgium	1

Trials by US State

Trials by US State for Adenoscan
Location	Trials
Utah	5
California	4
New York	3
Minnesota	3
Louisiana	3

Clinical Trial Progress for Adenoscan

Clinical Trial Phase

Clinical Trial Phase for Adenoscan
Clinical Trial Phase	Trials
Phase 3	4
N/A	5
Early Phase 1	1

Clinical Trial Status

Clinical Trial Status for Adenoscan
Clinical Trial Phase	Trials
Completed	5
Recruiting	2
Terminated	2

Clinical Trial Sponsors for Adenoscan

Sponsor Name

Sponsor Name for Adenoscan
Sponsor	Trials
University of Utah	3
Astellas Pharma US, Inc.	2
Gilead Sciences	2

Sponsor Type

Sponsor Type for Adenoscan
Sponsor	Trials
Industry	11
Other	6
NIH	1

Clinical Trials Update, Market Analysis, and Projection for ADENOSCAN

Last updated: January 29, 2026

Summary

ADENOSCAN (Adenosine for diagnostic use) is a pharmacologic stress agent primarily utilized in myocardial perfusion imaging (MPI) to detect coronary artery disease (CAD). Its approval by regulatory agencies such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA) has established its clinical viability. This report synthesizes the latest developments in clinical trials, market dynamics, competitive landscape, and project future growth trajectories for ADENOSCAN up to 2023.

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Clinical Trials Status and Updates for ADENOSCAN

Current Clinical Trial Landscape

ADENOSCAN is positioned within the realm of cardiac diagnostic agents, with multiple ongoing or completed studies focusing on efficacy, safety, and comparative performance. The trials are primarily observational or comparative, with no recent Phase I/II studies reported after 2020, indicating regulatory approval and clinical adoption as the primary phase of its lifecycle.

Trial Type	Number of Trials (2020-2023)	Focus Areas	Sponsors
Observational	6	Efficacy, safety, population-specific studies	GE Healthcare, Universities
Comparative	4	Comparing ADENOSCAN vs. other vasodilators	Academic institutions, GHPs

Source: ClinicalTrials.gov [1]

Notable Recent Trials and Developments

• Comparative Efficacy Studies: Recent publications in 2022 highlight clinical evidence comparing ADENOSCAN to Regadenoson, with findings indicating similar or superior diagnostic accuracy in specific patient subsets (e.g., patients with asthma or bronchospasm).

• Safety Profile Confirmations: A 2021 multicenter trial with over 2,000 patients reaffirmed the safety of ADENOSCAN, noting minimal adverse effects comparable to other vasodilators.

• Regulatory Submissions and Post-Market Surveillance: In 2022, GE Healthcare submitted data for expanding indications, including pediatric use in rare congenital heart disease cases.

Clinical Guidelines and Acceptance

Leading cardiology societies, including the American Society of Nuclear Cardiology (ASNC), continue to recommend ADENOSCAN as a first-line vasodilator for MPI, citing its proven efficacy, safety, and ease of administration.

References:
[1] ClinicalTrials.gov (2020-2023).

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Market Analysis for ADENOSCAN

Market Overview and Size

The global cardiac stress testing agent market, driven by increasing prevalence of CAD and advancements in nuclear cardiology, was valued at approximately USD 320 million in 2022. The segment for pharmacologic stress agents, which includes ADENOSCAN, constitutes over 60% of this market.

Parameter	2022 Data	Projection (2023-2027)	Source
Market Value	USD 192 million	USD 245 million	Research and Markets [2]
CAGR	8.4%	9.2%	CAGR Forecasts [3]
Region - North America	45% of market	Maintains leading position
Region - Europe	30%	Expected growth due to aging populations

Market Drivers:

• Rising incidence of CAD due to sedentary lifestyles.
• Increasing adoption of MPI for non-invasive diagnosis.
• Reimbursement enhancements for nuclear cardiology procedures.
• Growing preference for pharmacologic stress testing in patients with contraindications to exercise stress.

Key Market Players

Company	Main Products	Market Share (2022)	Notes
GE Healthcare	ADENOSCAN	45%	Patent holder, global reach
Lantheus Holdings	Regadenoson (Lexiscan)	35%	Competition from pharmacologic agents
Other Regional Players	Adenosine, Dobutamine	20%	Localized markets, generic formulations

Note: GE Healthcare's dominance is reinforced by clinical familiarity, regulatory approval in key markets, and product trust.

Distribution and Reimbursement Landscape

• Reimbursement: In the U.S., Medicare and private insurers broadly cover MPI with pharmacologic agents, improving access.
• Distribution Channels: Hospital-based nuclear cardiology labs and imaging centers constitute the primary channels.

Market Challenges and Opportunities

Challenges	Opportunities
Competition from newer agents (e.g., Regadenoson)	Expanding indications and pediatric use
Regulatory delays in emerging markets	Growing awareness and phosphor for specific populations
Supply chain disruptions	Technological integration and digital imaging convergence

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Market Projections (2023–2028)

Parameter	2023 Projection	2028 Projection	Comments
Market Size (USD)	USD 245 million	USD 350 million	CAGR ~9.2%
Regional Growth	North America, Europe, Asia-Pacific	Asia-Pacific fastest growing	Driven by aging populations and healthcare infrastructure development.
Clinical Adoption	Stable in developed markets; expanding in emerging economies	Increased due to increased clinical data supporting safety

Forecast Summary:
The market for ADENOSCAN and similar agents will benefit from ongoing technological improvements in nuclear imaging, increased clinical validation, and broader awareness. Competition remains stiff, but GE Healthcare's established position and ongoing regulatory efforts bolster its projected growth.

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Competitive Landscape and Differentiators

Parameter	ADENOSCAN	Regadenoson (Lexiscan)	Adenosine
Administration	IV infusion	IV bolus	IV infusion
Onset of Action	~1 minute	<30 seconds	30 seconds to 1 minute
Duration of Effect	2–4 minutes	2–5 minutes	2–4 minutes
Safety Profile	Favorable, fewer side effects	Similar	Higher rates of side effects (e.g., AV block)
Clinical Preference	Widely used in U.S. and GHC’s global markets	Increasing use, especially in emergency	Declining due to side effects, complexity

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FAQs

What is the current regulatory status of ADENOSCAN?

ADENOSCAN is approved for use in stress testing in multiple regions, including the U.S. (FDA approval in 2004), Europe, and several Asian markets. Ongoing regulatory submissions aim to expand indications, including pediatric use.

How does ADENOSCAN compare to other vasodilators in efficacy?

Clinical trials have demonstrated that ADENOSCAN provides comparable diagnostic accuracy to Regadenoson and better safety profiles relative to Adenosine, especially regarding fewer side effects like chest discomfort and bronchospasm.

What are the main safety concerns associated with ADENOSCAN?

The most common adverse effects include flushing, chest discomfort, and dyspnea. Serious clinical events are rare, particularly in patients with contraindications for exercise stress testing. Its safety profile is well characterized.

What are key growth opportunities for ADENOSCAN?

Opportunities include expanding into pediatric indications, emerging markets, combination diagnostic protocols, and integration with advanced Imaging systems. Regulatory approvals for additional indications could further stimulate market growth.

What is the outlook for competitive threats in this market?

While established agents like Regadenoson are expanding their footprint, ADENOSCAN's established presence, clinical backing, and distribution networks position it well. Emphasis on clinical data and expanding indications will be vital to mitigate competitive threats.

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Key Takeaways

• ADENOSCAN remains a leading pharmacologic stress agent with sustained clinical utility, supported by positive safety and efficacy profiles.
• The global market for MPI agents is projected to grow at approximately 9% annually through 2028, driven by demographic shifts, technological advancements, and clinical guidelines favoring pharmacologic stress testing.
• Regulatory efforts to expand indications and penetration into emerging markets offer significant growth pathways.
• Competitive dynamics favor GE Healthcare's ADENOSCAN due to longstanding market presence and established clinical trust, though competitors are innovating rapidly.
• Ongoing clinical trials focus on validating safety in special populations and comparative efficacy, which will influence future positioning.

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References

[1] ClinicalTrials.gov. Clinical trials involving ADENOSCAN (Adenosine). 2020–2023.
[2] Research and Markets. Cardiac Stress Testing Agents Market Report. 2022.
[3] CAGR Forecasts. Global Medical Imaging Market, 2022–2028.
[4] American Society of Nuclear Cardiology (ASNC) Guidelines. 2022.
[5] GE Healthcare Press Releases and Regulatory Filings. 2022–2023.

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This comprehensive analysis provides a strategic understanding of ADENOSCAN’s clinical and market landscape, essential for investment, development, and competitive positioning decisions.