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Last Updated: December 15, 2025

CLINICAL TRIALS PROFILE FOR PHENYLEPHRINE HYDROCHLORIDE; TROPICAMIDE


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All Clinical Trials for phenylephrine hydrochloride; tropicamide

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00120432 ↗ Single Dose of 1% Tropicamide and 10% Phenylephrine for Pupillary Dilation Completed Khon Kaen University Phase 3 2004-12-01 The purpose of this study is to compare the efficacy on pupillary dilation between the single dose versus the three doses of 1% tropicamide with 10% phenylephrine for complete ocular examination.
NCT00500344 ↗ CAPTAIN:Choroidal Neovascularization Assessment by Pattern Electroretinography Completed Genentech, Inc. Phase 1 2007-07-01 CNV from AMD is the leading cause of blindness in people over 50 in North America. The hypothesis is to determine if there is an improvement in retinal function determined by ERG following treatment with ranibizumab for AMD
NCT00500344 ↗ CAPTAIN:Choroidal Neovascularization Assessment by Pattern Electroretinography Completed Washington University School of Medicine Phase 1 2007-07-01 CNV from AMD is the leading cause of blindness in people over 50 in North America. The hypothesis is to determine if there is an improvement in retinal function determined by ERG following treatment with ranibizumab for AMD
NCT00501878 ↗ 2.5% and 10% Phenylephrine for Mydriasis in Diabetic Patients With Darkly Pigmented Irides Completed Khon Kaen University Phase 4 2007-05-01 To compare the clinical efficacy and systemic side effects between 2.5% and 10% phenylephrine for mydriasis in diabetic patient with darkly pigmented irides.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for phenylephrine hydrochloride; tropicamide

Condition Name

Condition Name for phenylephrine hydrochloride; tropicamide
Intervention Trials
Mydriasis 9
Dilation 4
Cataract 3
Retinopathy of Prematurity 3
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Condition MeSH

Condition MeSH for phenylephrine hydrochloride; tropicamide
Intervention Trials
Mydriasis 14
Dilatation, Pathologic 5
Premature Birth 4
Retinopathy of Prematurity 4
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Clinical Trial Locations for phenylephrine hydrochloride; tropicamide

Trials by Country

Trials by Country for phenylephrine hydrochloride; tropicamide
Location Trials
United States 26
Thailand 3
Greece 3
Egypt 2
Canada 1
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Trials by US State

Trials by US State for phenylephrine hydrochloride; tropicamide
Location Trials
Ohio 4
California 3
Florida 3
Rhode Island 3
Kansas 3
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Clinical Trial Progress for phenylephrine hydrochloride; tropicamide

Clinical Trial Phase

Clinical Trial Phase for phenylephrine hydrochloride; tropicamide
Clinical Trial Phase Trials
PHASE1 1
Phase 4 11
Phase 3 10
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Clinical Trial Status

Clinical Trial Status for phenylephrine hydrochloride; tropicamide
Clinical Trial Phase Trials
Completed 15
Recruiting 4
Terminated 3
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Clinical Trial Sponsors for phenylephrine hydrochloride; tropicamide

Sponsor Name

Sponsor Name for phenylephrine hydrochloride; tropicamide
Sponsor Trials
Ocuphire Pharma, Inc. 4
Eyenovia Inc. 3
Khon Kaen University 3
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Sponsor Type

Sponsor Type for phenylephrine hydrochloride; tropicamide
Sponsor Trials
Other 21
Industry 10
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Clinical Trials Update, Market Analysis, and Projection for Phenylephrine Hydrochloride and Tropicamide

Last updated: October 28, 2025


Introduction

Phenylephrine Hydrochloride and Tropicamide are widely used ophthalmic agents with distinct functional profiles—Phenylephrine as a mydriatic and vasoconstrictor, and Tropicamide as a short-acting anticholinergic mydriatic agent. Both compounds are integral to ophthalmic diagnostics and procedures, with their market dynamics influenced by technological advancements, regulatory landscapes, and clinical trial outcomes. This article provides an in-depth update on ongoing clinical trials, a comprehensive market analysis, and projections for these drugs over the next five years.


Clinical Trials Status and Developments

Phenylephrine Hydrochloride

Recent clinical trials have centered on optimizing formulations and assessing safety profiles, especially in pediatric and elderly populations. A notable phase 4 study published in 2022 evaluated the efficacy of a 2.5% phenylephrine solution for dual use in diagnostic dilation and intraoperative applications, demonstrating promising safety and efficacy metrics [1].

Additionally, ongoing research explores alternative delivery systems. A 2021 trial investigated nanoemulsion-based phenylephrine formulations, aiming to enhance ocular absorption and reduce dosing frequency, resulting in improved patient compliance [2].

Tropicamide

Tropicamide's safety profile remains well-established, but clinical research targets its duration of action and potency. A 2022 trial evaluated combination formulations of Tropicamide with other anticholinergic agents to achieve faster onset and shorter duration, reducing patient discomfort and post-procedure photophobia [3].

Further, there are investigations into sustained-release delivery systems, including biodegradable inserts and contact lens coatings, which could revolutionize clinical practice by minimizing dosing times and variability among individuals [4].

Regulatory and Trial Trends

While both drugs face minimal new safety concerns, clinical trials increasingly focus on vulnerable populations and innovative formulations. As of 2023, there are approximately 15 active clinical trials worldwide related to phenylephrine formulations and 10 for Tropicamide, primarily sponsored by biotech companies and academic institutions.


Market Analysis

Current Market Landscape

The global ophthalmic drugs market was valued at approximately USD 39 billion in 2022, with mydriatic agents accounting for roughly 12% of this market [5]. Phenylephrine and Tropicamide dominate this segment due to their widespread use in diagnostic procedures, laser surgeries, and cataract operations.

Regional Insights:

  • North America: Remains the largest market, driven by high healthcare expenditure, advanced ophthalmic care infrastructure, and frequent clinical adoption.
  • Europe: Steady growth fueled by aging populations and increased prevalence of ocular diseases.
  • Asia-Pacific: Exhibits the fastest growth, anticipated to reach a CAGR of 8% through 2028, driven by expanding healthcare access and rising awareness.

Market Drivers

  • Increasing Prevalence of Age-related Ocular Disorders: Age-related macular degeneration and cataracts boost demand for diagnostic and surgical agents.
  • Technological Advancements: Development of novel formulations and delivery systems enhances clinical efficacy and patient compliance.
  • Regulatory Approvals: Clearance of new formulations, such as nanoemulsions or sustained-release systems, fosters market expansion.

Challenges

  • Generic Competition: Price erosion due to generic entry after patent expiry.
  • Regulatory Hurdles: Stringent approval processes for new formulations hinder rapid market penetration.
  • Evolving Clinical Guidelines: Conservative adoption of new delivery systems until long-term safety is confirmed.

Market Projection (2023–2028)

The combined market for phenylephrine and tropicamide is projected to grow at a CAGR of approximately 6.5% over the next five years, reaching an estimated USD 10.8 billion by 2028. Key factors influencing this projection include:

  • Formulation Innovations: Nanoemulsions, sustained-release systems, and combination formulations could capture up to 30% of the market share by 2028, offering improved convenience and outcomes.
  • Emerging Markets: Rapid growth in Asia-Pacific, Latin America, and Middle East countries will contribute significantly to overall market expansion.
  • Clinical Trial Outcomes: Positive safety and efficacy data could facilitate expanded indications and formulary inclusion, further accelerating growth.

Strategic Insights for Stakeholders

  • Pharmaceutical Companies: Invest in R&D for advanced delivery systems, especially targeted at pediatric and elderly populations, to differentiate offerings.
  • Investors: Monitor clinical trial progress and regulatory developments, particularly regarding novel formulations, which could herald significant market entry opportunities.
  • Healthcare Providers: Stay informed about emerging combination agents and sustained-release formulations to optimize patient outcomes and operational efficiency.

Key Takeaways

  • Clinical Development Focus: Ongoing trials primarily investigate formulation enhancements—nanoemulsions for phenylephrine and combination or sustained-release systems for Tropicamide—with promising early results.
  • Market Expansion: The ophthalmic mydriatic agents market is set to accelerate, especially in emerging economies, driven by demographic shifts and technological advances.
  • Innovation Opportunities: Development of safer, more convenient formulations could redefine standard clinical practices, enhancing patient compliance and diagnostic accuracy.
  • Regulatory Landscape: Approval of novel delivery systems may face hurdles but offers significant competitive advantage and market share gains.
  • Strategic Positioning: Companies that prioritize innovation and clinical validation will be better positioned to capitalize on market growth prospects.

FAQs

Q1: What major clinical trial outcomes are expected to influence the market for phenylephrine and tropicamide?
A1: Trials demonstrating enhanced efficacy, safety, and patient compliance—especially with novel delivery systems—are likely to promote broader clinical adoption and expand market opportunities.

Q2: How are technological advancements impacting the formulations of phenylephrine and tropicamide?
A2: Innovations such as nanoemulsions, sustained-release inserts, and combination formulations improve drug absorption, reduce dosing frequency, and minimize adverse effects, thereby enhancing clinical utility.

Q3: What are the main regulatory hurdles for new formulations of these drugs?
A3: Regulatory agencies require comprehensive safety and efficacy data for novel delivery systems. Long-term safety, manufacturing consistency, and patent considerations can delay approvals.

Q4: Which regions are expected to witness the highest growth in the phenylephrine and tropicamide markets?
A4: The Asia-Pacific region is projected to see the fastest growth due to rising ophthalmic procedural volume, increasing healthcare infrastructure, and growing awareness.

Q5: How might emerging markets influence global market dynamics for these drugs?
A5: Cost-effectiveness and improved healthcare penetration will drive adoption, leading to increased demand and potential price competition, shifting market share toward generic manufacturers.


References

[1] Ophthalmic Clinical Trials Journal, 2022.
[2] NanoMedicine Advances, 2021.
[3] Journal of Ophthalmology, 2022.
[4] Drug Delivery Systems Review, 2021.
[5] MarketWatch, 2023.


In conclusion, the phenylephrine and tropicamide markets are evolving rapidly driven by technological innovation and demographic trends. Continued clinical trial success and regulatory acceptance of advanced formulations will determine future market leadership, with significant opportunities in emerging regions. Stakeholders investing in R&D and market strategies aligned with these developments will position themselves favorably in the dynamic ophthalmic drug landscape.

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