Last Updated: May 31, 2026

CLINICAL TRIALS PROFILE FOR CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE


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All Clinical Trials for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE

Trial ID Title Status Sponsor Phase Start Date Summary
NCT01170130 ↗ Lidocaine Usage for Pupil Dilatation (Mydriasis) Completed Carmel Medical Center N/A 2009-12-01 The purpose of this study is to determine if the mydriatic effect of intracameral lidocaine 1% is as effective as topical cyclopentolate 1% and phenylephrine 10% for achieving effective mydriasis during phacoemulsification surgery.
NCT02177539 ↗ A New More Efficient Cycloplegia Scheme Unknown status Pontificia Universidad Catolica de Chile Phase 4 2014-05-01 The purpose of this study is to determine whether tropicamide + phenylephrine cyclopentolate + applied for once waiting 30 minutes to retinoscopy (new scheme) is not inferior to apply cyclopentolate alone and wait 45 minutes to retinoscopy (traditional scheme)
NCT02895035 ↗ Comparison of Epinephrine and Phenylephrine/Ketorolac With Regards to Pupil Size Terminated Milton S. Hershey Medical Center Phase 4 2016-09-01 The objective of this study is to compare the maintenance of intraoperative mydriasis during cataract surgery between two drugs: epinephrine, which has routinely been used for decades, and Omidria, a newly FDA approved combination drug of phenylephrine and ketorolac. Patients undergoing cataract surgery that are enrolled in the trial will randomly receive one of the drugs in one eye, and the other eye will receive the drug during the subsequent cataract surgery.
NCT04838665 ↗ Changes in Vital Signs and Pupil Diameter Related to Pharmacologic Mydriasis in Premature Infants: A Randomized Double Blind Clinical Study Completed University of the Philippines Phase 4 2011-09-30 Retinopathy of prematurity (ROP) is one of the common anatomic causes of blindness among Filipinos, accounting for 47.7% of the cases. With this retinopathy being preventable and treatable, ROP screening has been proven to be effective in preventing blindness, which is achieved with the usage of mydriatics. Even if the regimen of multiple alternate instillations of 0.5% tropicamide and 2.5% phenylephrine is the one recommended by international guidelines for ROP screening, the mydriatic regimen used by many of the country's institutions is the single instillation of 0.5% tropicamide + 0.5% phenylephrine applied via a cotton wick placed in the inferior fornix (SIW). There have been no studies yet on the safety and efficacy in premature infants of this mydriatic preparation and method, although it is hypothesized that the usage of a cotton wick promotes the possible systemic effects of the mydriatic combination used. This study then aims to determine the safety and efficacy of different mydriatic regimens in premature infants referred for screening of ROP using (1) multiple alternate instillations of 0.5% cyclopentolate hydrochloride and 2.5% phenylephrine (MAI), (2) single instillation of 0.5% tropicamide + 0.5% phenylephrine (SI), and (3) single instillation of 0.5% tropicamide + 0.5% phenylephrine with a cotton wick placed in the inferior fornix (SIW) in a tertiary Philippine hospital. This study was designed as a randomized, double blind, clinical study which enrolled sixty preterm infants referred for ROP Screening from January to July 2011. With instillations via MAI, SI, and SIW, systolic blood pressure (SBP), diastolic pressure (DBP), mean arterial pressure (MAP), heart rate, and oxygen saturation were monitored from ten minutes prior to instillation up to forty-five minutes after instillation. Pupil dilations were also measured at the forty-fifth minute.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE

Condition Name

Condition Name for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE
Intervention Trials
Cataract 2
Refractive Errors 1
Retinopathy of Prematurity 1
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Condition MeSH

Condition MeSH for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE
Intervention Trials
Mydriasis 2
Cataract 2
Retinopathy of Prematurity 1
Refractive Errors 1
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Clinical Trial Locations for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE

Trials by Country

Trials by Country for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE
Location Trials
Chile 1
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Clinical Trial Progress for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE

Clinical Trial Phase

Clinical Trial Phase for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE
Clinical Trial Phase Trials
Phase 4 3
N/A 1
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Clinical Trial Status

Clinical Trial Status for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE
Clinical Trial Phase Trials
Completed 2
Unknown status 1
Terminated 1
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Clinical Trial Sponsors for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE

Sponsor Name

Sponsor Name for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE
Sponsor Trials
University of the Philippines 1
Carmel Medical Center 1
Pontificia Universidad Catolica de Chile 1
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Sponsor Type

Sponsor Type for CYCLOPENTOLATE HYDROCHLORIDE; PHENYLEPHRINE HYDROCHLORIDE
Sponsor Trials
Other 4
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Last updated: May 3, 2026

Cyclopentolate HCl + Phenylephrine HCl: Clinical Trial Update, Market Readout, and Forward Projections

What is the current clinical development status for cyclopentolate HCl + phenylephrine HCl?

Cyclopentolate hydrochloride plus phenylephrine hydrochloride is a combination used for ophthalmic mydriasis and cycloplegia, typically in pediatric and adult eye exams. Across major trial registries, this specific fixed combination does not show consistent, recent Phase 2/3 development programs that would support a clean “pipeline” narrative in the way seen for newer drug classes.

Practical implication for diligence: most “current” activity for this drug class tends to sit in (1) formulation and manufacturing changes, (2) labeling/indication expansion efforts, and (3) low-enrollment or locally conducted studies rather than large global efficacy trials.

Clinical trial update (what you can operationalize now):

  • No readily trackable, ongoing Phase 2/3 efficacy trials for the fixed combination across global registries that would anchor a predictable registration path.
  • Activity pattern is consistent with legacy ophthalmic standard-of-care products, where clinical evidence is historically established and current work focuses on commercial lifecycle actions.

Where does the evidence base come from, and what endpoints matter commercially?

For ophthalmic exam mydriasis/cycloplegia combinations, regulatory and market differentiation usually hinge on:

  • Onset of mydriasis and cycloplegia (time to adequate pupil dilation and accommodation loss)
  • Adequacy rate (percentage of patients achieving target dilation within a defined window)
  • Duration (time until pupil reverts or accommodation returns to clinically acceptable thresholds)
  • Safety and tolerability (especially in children; systemic absorption concerns for sympathomimetics)
  • Repeat dosing rules (if allowed in protocol)

Commercial translation: when a product positions against competitors, the most defensible claims are typically centered on speed, reliability, and duration of exam-ready pupil dilation rather than disease-modifying efficacy.

What is the market landscape for this combination?

The market for cyclopentolate-based mydriatic/cycloplegic regimens is mature and driven by:

  • Routine ophthalmic examinations, pediatric refractions, and optometry workflows
  • Seasonal and provider workflow effects (school-age pediatric volumes; clinic appointment cadence)
  • Formulary and contracting dynamics rather than new clinical differentiation

Competitive set (how substitutes behave in purchasing):

  • Fixed combinations using cyclopentolate plus a sympathomimetic (often phenylephrine)
  • Two-drug regimens where clinicians instill cyclopentolate and phenylephrine separately
  • Alternative mydriatic/cycloplegic agents depending on local practice and formulary

Implication for pricing power: in mature ophthalmic exam products, price realization is usually constrained by:

  • Generic entry and low incremental clinical differentiation
  • Tender/contract-driven procurement
  • Budget impact across outpatient/optometry channels

How does supply and regulatory lifecycle typically affect revenue?

For established ophthalmic drops:

  • Patent-driven periods (where still active for a specific formulation or method of use) influence early pricing.
  • Generic substitution usually dominates after expiry for the molecule or combination.
  • Manufacturing and quality system compliance are key barriers, but not the same as a clinical innovation edge.

Actionable readout: in this category, the commercial center of gravity tends to move from “clinical differentiation” toward availability, packaging convenience, and ability to win contracts.


Market Projection Framework for Cyclopentolate HCl + Phenylephrine HCl

What demand drivers can be projected with a reasonable business model?

Use a demand model anchored to exam volumes and pediatric share:

  1. Pediatric refraction and routine eye exams
    • Cycloplegia is often required for accurate refraction in children.
  2. Optometry/ophthalmology visit growth
    • Demographic growth in school-age populations is the key macro driver.
  3. Utilization intensity
    • Frequency of follow-up exams and screening programs can alter total units.
  4. Substitution risk
    • Separate instillation regimens and alternative agents cap long-term pricing.

What supply and substitution risks change growth rates?

  • Generic and multi-source competition reduces gross margin and slows unit price growth.
  • Formulary preference shifts can reallocate volume quickly.
  • Regulatory or labeling constraints (where present in individual markets) can restrict usage patterns.

Projection: baseline, downside, upside (unit growth and price impact)

Because this category is mature and highly substitution-prone, projections are best expressed as scenarios.

Scenario model (annual, global retail-equivalent direction)

Scenario Unit Growth (CAGR) Net Price Trend Revenue Trend
Baseline 2% to 4% Flat to slight decline (0% to -2%/yr) 0% to 3% revenue growth
Downside 0% to 2% Faster erosion (-2% to -5%/yr) -2% to 1% revenue growth
Upside 4% to 6% Stabilization (0% to -1%/yr) 2% to 6% revenue growth

Why these ranges fit the category: procurement behavior and substitution dynamics typically keep unit growth modest and price growth constrained.


Clinical and Commercial Roadmap Implications

What does “no major Phase 2/3 footprint” mean for near-term strategy?

When large registration-grade efficacy trials are absent, companies usually pursue one (or more) of:

  • Formulation line extensions (concentration, preservative system, viscosity, or bottle systems)
  • Comparative trials with competitors’ products focused on onset/duration adequacy
  • Label/usage refinements that increase share within existing physician workflows

Where can differentiation still occur?

Differentiation still matters, but it is usually operational:

  • Speed to adequate dilation and cycloplegia
  • Predictable duration window to reduce rework and repeat visits
  • Tolerability profile relevant for children and exam settings
  • Packaging and dosing practicality (small volume, drop reliability)

What claims are most likely to support uptake?

In practice, products win by supporting workflow targets:

  • “Clinically adequate within a defined time”
  • “Duration supports the full refraction/exam process”
  • “Lower incidence of exam-limiting effects”

Due Diligence Checkpoints for Investors and R&D Leaders

What should be verified before spending on new development?

  • Existing dossier strength for the fixed combination (where and how it was approved)
  • Whether current evidence is adequate for any new label expansion
  • Whether competitor products already cover the most defensible endpoints (onset, adequacy rate, duration)

What should be treated as de-risking work, not innovation?

  • Comparative bio-performance within standard ophthalmic endpoints
  • Preservative system or formulation comparability work
  • Bottle/drop-size performance testing aligned to exam settings

Key Takeaways

  • Cyclopentolate HCl plus phenylephrine HCl is a mature ophthalmic exam combination with demand driven by pediatric and routine refraction workflows.
  • Recent, large-scale Phase 2/3 efficacy development for the fixed combination is not a dominant feature in global trial activity, which points to lifecycle management rather than rapid registration-led growth.
  • Market growth is likely modest: baseline revenue growth around 0% to 3% annually with pricing under pressure from generics and substitution.
  • Commercial strategy should prioritize workflow-relevant performance (onset, adequacy, duration, tolerability) and contracting/availability, not only new clinical claims.

FAQs

1) Is this combination used primarily for children?

Yes. Cycloplegia is a central use case for accurate pediatric refraction, with phenylephrine contributing to reliable mydriasis for the exam.

2) Why are large Phase 3 trials not central in this category?

The combination is established for ophthalmic exams, and differentiation often shifts to formulation and comparative performance within standard mydriasis/cycloplegia endpoints.

3) What endpoints most influence purchasing decisions?

Onset time to adequate dilation/cycloplegia, adequacy rates within a defined window, duration for exam completion, and tolerability in pediatric settings.

4) What drives revenue changes in mature ophthalmic drops?

Contracting outcomes, multi-source competition, generic substitution, and packaging or availability reliability more than new therapeutic efficacy.

5) What is the most realistic growth path?

Near-term growth typically tracks exam volume and share gains in specific channels, with net pricing pressure capping upside.


References

[1] U.S. National Library of Medicine. ClinicalTrials.gov. Search results for cyclopentolate hydrochloride plus phenylephrine hydrochloride (accessed 2026-05-03).
[2] World Health Organization. WHO Model List of Essential Medicines (ophthalmic sections and relevant mydriatic/cycloplegic entries where applicable). (accessed 2026-05-03).
[3] GlobalData and IQVIA-style market reporting summaries (category-level ophthalmic mydriatics and cycloplegics; accessed 2026-05-03).

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