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Pharmacodynamics of a Fixed Dose Combination of 0.34% Tropicamide and 2.5% Phenylephrine Hydrochloride, Eye Drop, Solution

Pharmacodynamics of Investigational Medicinal Product (IMP) 08P2002F0 (Fixed Dose Combination of 0.34 % Tropicamide and 2.5 % Phenylephrine Hydrochloride, Eye Drop Solution), a New Ophthalmic Mydriatic Solution in Healthy Volunteers

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07075224
Acronym
SOLMYD-PD
Enrollment
20
Registered
2025-07-20
Start date
2025-11-01
Completion date
2025-11-12
Last updated
2026-06-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mydriasis

Keywords

Mydriasis, Mydriatics, Phenylephrine, Tropicamide

Brief summary

The objective of this study is to explore pharmacodynamic effects and safety of IMP 08P2002F0 for dilation of the pupil, a solution combining two mydriatic agents tropicamide and phenylephrine hydrochloride at the concentrations of 0.34% and 2.5% respectively, versus Mydriasert®

Interventions

DRUGIMP 08P2002F0

Fixed combination of 0.34 % tropicamide and 2.5 % phenylephrine Hydrochloride (HCl) Eye drop Solution.

DRUGMydriasert® insert

0.28 mg tropicamide and 5.4 mg phenylephrine hydrochloride

Sponsors

Unither Pharmaceuticals, France
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
DIAGNOSTIC
Masking
SINGLE (Outcomes Assessor)

Intervention model description

Open-label, Observer-masked, active-controlled, randomized cross-over phase I/II study in healthy volunteers.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Healthy volunteers of both genders, aged ≥18 at the time of signing the informed consent. * Healthy volunteers are declared healthy based on medical history, physical examination, ophthalmological examination, Electrocardiogram (ECG), within the stated normal range; a participant with a clinical abnormality or laboratory parameter(s) outside the reference range may be included if the investigator agree and document that the finding is unlikely to introduce additional risk factors and will not interfere with the study procedures or interpretation.. 3\. Females who participate in the study, that are at reproductive age agree to undergo pregnancy tests and to use a highly effective birth control method during the study.

Exclusion criteria

* Hypersensitivity to the active substances or to the excipients or related class of the medicinal product. Serious hypersensitivity reactions include angioedema, anaphylaxis and exfoliative skin conditions including Stevens-Johnson syndrome. * Clinically significant illness or surgery within four weeks prior IMP administration. * Clinically significant ECG abnormalities or vital sign abnormalities (seated systolic blood pressure \< 90 or \>140 mmHg, seated diastolic blood pressure \< 50 or \> 90 mmHg or heart rate less than 50 or over 100 bpm) at screening. History or presence of any clinically significant cardiovascular, pulmonary, hepatobiliary, renal, haematological, gastrointestinal, endocrinologic, immunologic, dermatologic, neurological, psychiatric, metabolic, musculoskeletal, malignant disease or eye disorders as glaucoma or a family history of glaucoma. * Clinically significant abnormal laboratory values. * Unwilling to discontinue use of contact lenses on the day of a treatment visit. * Current active eye disease (i.e. any disease for which topical or systemic ophthalmic medication is necessary). In case of historical eye disease, topical or systemic ophthalmic medication should have been stopped for at least one month before the study. * Pupillary abnormalities (irregular, very dark iris, iris synechiae, eye movement disorder (e.g. Nystagmus, etc.), dacryocystitis and all other pathologies of tears drainage system. * Use of any ophthalmic medication except unpreserved artificial tears on the day of a treatment visit. * History of inflammatory ocular disease (e.g. iritis, uveitis, herpetic keratitis). * History of ocular trauma, infection or inflammation within the last 3 months. * Ocular surgery or laser treatment of any kind in the study eye within 3 months. * Irregularly-shaped pupil secondary to ocular trauma, intraocular surgery or congenital defect. * History of neurogenic pupil disorder (e.g. Horner's syndrome, third cranial nerve palsy, Adie's pupil, Argyl Robertson syndrome, etc.). * History of iris surgery of any kind (e.g. iridotomy, iridectomy, coreoplasty). * History of previous corneal surgery; iris atrophy, traumatic mydriasis or angle recession, chronic or acute uveitis. * Corneal, epithelial, stromal or endothelial, residual or evolutionary disease (including corneal ulceration and superficial punctuate keratitis). Pseudoexfoliation, exfoliative syndrome. * History of closed-angle glaucoma. * Subjects with narrow angle prone to glaucoma precipitated by mydriatics * Subject undergoing treatment identified as potentially interacting with the IMP, including antidepressant drugs, beta-blockers, other indirect sympathomimetics, alpha sympathomimetics (oral and/or nasal routes), dopaminergic ergot alkaloids, ergot alkaloid vasoconstrictors, selective MAOI-A, linezolid, and halogenated volatile anesthetics. -. Subject planning to receive an MAOI within 3 weeks following the end of the study. * Subjects who have received non-selective monoamine oxidase inhibitors (MAOIs) within the last 15 days

Design outcomes

Primary

MeasureTime frame
Change in Pupil Diameter at 60 Minutes From the Time of First Dose Versus Baseline, as Measured With Photo (Central Reading)60 minutes

Secondary

MeasureTime frameDescription
Time to Obtain Sufficient Mydriasis6 hours post doseThis endpoint represents the time to first achievement of a pupil diameter ≥7.0 mm, analyzed using Kaplan-Meier time-to-event methods. The reported median time corresponds to the time at which 50% of eyes reached this threshold and does not indicate that all eyes had achieved a pupil diameter ≥7.0 mm at that timepoint. While all eyes eventually reached ≥7.0 mm during the observation period (no censored observations), some did so after the 30-minute assessment reported in Outcome Measure 8.
Proportion of Eyes Achieving Pupil Diameter of 6.0 mm or GreaterThroughout the 6 hours, at 30 minutes, at 1 hour and 2 hours.
Proportion of Eyes Achieving Pupil Diameter of 7.0 mmThroughout the 6 hours, at 30 minutes, at 1 hour and 2 hours.
Time From Baseline to Maximal Pupil Dilation6 hours post dose
Change in Pupil Diameter at Other TimepointsAt 10 minutes, 20 minutes, 30 minutes, 45 minutes, 60 minutes, 1 hour and 15 minutes, 1 hour and 30 minutes, 2 hours, 2 hours and 30 minutes, 3 hours, 3 hours and 30 minutes, 4 hours, 4 hours and 30 minutes, 5 hours, 6 hours.
Pupil SizeAt baseline, 10 minutes, 20 minutes, 30 minutes, 45 minutes, 60 minutes, 1 hour and 15 minutes, 1 hour and 30 minutes, 2 hours, 2 hours and 30 minutes, 3 hours, 3 hours and 30 minutes, 4 hours, 4 hours and 30 minutes, 5 hours, 6 hours.
Distribution of Pupil DiametersAt 10 minutes, 20 minutes, 30 minutes, 45 minutes, 60 minutes, 1 hour and 15 minutes, 1 hour and 30 minutes, 2 hours, 2 hours and 30 minutes, 3 hours, 3 hours and 30 minutes, 4 hours, 4 hours and 30 minutes, 5 hours, 6 hours
Subject Ocular DiscomfortAt 10 minutes, 30 minutes, 60 minutes, 1 hour and 30 minutes, 2 hours, and 6 hours post-administration.Healthy volunteers will be asked to respond regarding the following ocular signs after instillation of the respective IMP: irritation/burning/stinging, eye dryness, foreign body sensation, blurred vision by "yes" or "no" and to assess the severity by grading 0 = none, 1 = slight, 2 = moderate, 3 = severe, if sign(s) were noted with "yes" A higher score means a worse result.
Percent of Subjects' Study Eyes With Pupil Diameter Returning to BaselineThroughout the 6 hours, at 3 hours, 4 hours, 5 hours, 6 hours.
Percentage of Subjects' Study Eyes Returning to Less Than or Equal to 0.2 mm From Baseline Pupil DiameterThroughout the 6 hours, at 3 hours, 4 hours, 5 hours, 6 hours.

Countries

Greece

Baseline characteristics

Characteristic
Age, Continuous42.75 years
STANDARD_DEVIATION 15.341
Sex: Female, Male
Female
12 Participants
Sex: Female, Male
Male
8 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 20
other
Total, other adverse events
0 / 201 / 20
serious
Total, serious adverse events
0 / 200 / 20

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 18, 2026