- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04620213
Safety and Efficacy of Nyxol (0.75% Phentolamine Ophthalmic Solution) to Reverse Pharmacologically-Induced Mydriasis
Randomized, Parallel Arm, Double-Masked, Placebo-Controlled Study of the Safety and Efficacy of Nyxol (0.75% Phentolamine Ophthalmic Solution) to Reverse Pharmacologically-Induced Mydriasis in Healthy Subjects
The objectives of this study are:
- To evaluate the efficacy of Nyxol to expedite the reversal of pharmacologically-induced mydriasis across multiple mydriatic agents with an emphasis on phenylephrine
- To evaluate the efficacy of Nyxol to return subjects to baseline accommodation after worsening (with cycloplegic agents tropicamide and Paremyd)
- To evaluate the safety of Nyxol
- To evaluate any additional benefits of the reversal of pharmacologically-induced mydriasis
Study Overview
Status
Intervention / Treatment
Detailed Description
A randomized, parallel arm, double-masked, placebo-controlled Phase 3 study in at least 168 randomized subjects (160 completed), evaluating the safety and efficacy of Nyxol in subjects with pharmacologically-induced mydriasis.
Following the successful completion of screening, each subject will be stratified by eye color and then simultaneously be randomized to mydriatic agent (unmasked) and treatment (masked).
Treatment randomization will be 1:1, Nyxol or placebo (vehicle).
Stratification by iris color will be 1:1, light or dark irides.
The mydriatic agent randomization will be 3:1:1 (2.5% phenylephrine, 1% tropicamide, and Paremyd). That is, approximately 60% of the randomized subjects will receive one drop of 2.5% phenylephrine 1 hour before treatment (96 completed subjects), approximately 20% will receive one drop of 1% tropicamide 1 hour before treatment (32 completed subjects), and approximately 20% will receive Paremyd 1 hour before treatment (32 completed subjects).
At the treatment visit, subjects who have been randomized and stratified by iris color (1:1 [light/dark]) will receive one of three approved mydriatic agents approximately 1 hour prior to receiving study treatment. Measurements will be measured before (-1 hour /baseline) and 60 minutes after (maximum/0 minutes) the mydriatic agent instillation in each eye (i.e. right before the study treatment is administered), and at 30 minutes, 60 minutes, 90 minutes, 2 hours, 3 hours, 4 hours, and 6 hours after treatment dosing. Measurements will include pupil diameter (PD), distance and near visual acuity (VA), accommodation, and redness in each eye.
At the Follow-Up Visit, which is 1 day after Visit 1, measurements will again be recorded 24 hours after treatment dosing.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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California
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Newport Beach, California, United States, 92663
- Clinical site 11
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San Diego, California, United States, 92123
- Clinical Site 10
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Florida
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Longwood, Florida, United States, 32779
- Clinical Site 9
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Orlando, Florida, United States, 32751
- Clinical Site 6
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Georgia
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Roswell, Georgia, United States, 30075
- Clinical Site 2
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Kansas
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Pittsburg, Kansas, United States, 66762
- Clinical Site 7
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Shawnee Mission, Kansas, United States, 66203
- Clinical Site 3
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Ohio
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Athens, Ohio, United States, 45701
- Clinical Site 5
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Cincinnati, Ohio, United States, 45242
- Clinical Site 12
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Cleveland, Ohio, United States, 44195
- Clinical Site 1
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Rhode Island
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Warwick, Rhode Island, United States, 02888
- Clinical Site 8
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Tennessee
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Memphis, Tennessee, United States, 38119
- Clinical Site 4
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Males or females ≥ 12 years of age
- Otherwise healthy and well controlled subjects
Exclusion Criteria:
Ophthalmic (in either eye):
- Clinically significant ocular disease as deemed by the Investigator that might interfere with the study
- Unwilling or unable to discontinue use of contact lenses at screening until study completion
- Unwilling or unable to suspend use of topical medication at screening until study completion
- Ocular trauma, ocular surgery or non-refractive laser treatment within the 6 months prior to screening
- Use of any topical prescription or over-the-counter (OTC) ophthalmic medications of any kind within 7 days of screening
- Recent or current evidence of ocular infection or inflammation in either eye
- History of diabetic retinopathy or diabetic macular edema
- Closed or very narrow angles that in the Investigator's opinion are potentially occludable if the subject's pupil is dilated
- History of any traumatic (surgical or nonsurgical) or non-traumatic condition affecting the pupil or iris
- Known allergy or contraindication to any component of the mydriatic agents or the vehicle formulation
- History of cauterization of the punctum or punctal plug (silicone or collagen) insertion or removal
Systemic:
- Known hypersensitivity or contraindication to α- and/or β adrenoceptor antagonists.
- Clinically significant systemic disease that might interfere with the study
- Initiation of treatment with or any changes to the current dosage, drug or regimen of any systemic adrenergic or cholinergic drugs within 7 days prior to screening, or during the study
- Participation in any investigational study within 30 days prior to screening
- Females of childbearing potential who are pregnant, nursing, planning a pregnancy, or not using a medically acceptable form of birth control
- Resting HR outside the normal range (50-110 beats per minute)
- Hypertension with resting diastolic BP > 105 mmHg or systolic BP > 160 mmHg
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Phentolamine Ophthalmic Solution 0.75%
2 drops in study eye and 1 drop in non-study eye, 1 hour post pharmacologically-induced mydriasis
|
0.75% phentolamine ophthalmic solution (Nyxol), a non-selective alpha-1 and alpha-2 adrenergic antagonist
Other Names:
|
Placebo Comparator: Phentolamine Ophthalmic Solution Vehicle
2 drops in study eye and 1 drop in non-study eye, 1 hour post pharmacologically-induced mydriasis
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Topical sterile ophthalmic solution
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percent of Subjects' Study Eyes With Pupil Diameter Returning to Baseline
Time Frame: 90 minutes
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Percentage of subjects' study eyes returning to less than or equal to 0.2 mm from baseline pupil diameter
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90 minutes
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percent of Subjects' Study Eyes Pupil Diameter Returning to Baseline
Time Frame: up to 24 hours
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Percentage of subjects' study eyesreturning to less than or equal to 0.2 mm from baseline pupil diameter
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up to 24 hours
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Pupil Diameter (Change From Max)
Time Frame: up to 24 hours
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Change (mm) from maximum pharmacologically-induced mydriatic pupil diameter (0 minutes)
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up to 24 hours
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Percent of Subjects With Unchanged Accommodation From Baseline
Time Frame: up to 6 hours
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Percentage of subjects with unchanged accommodation from baseline (-1 hour)
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up to 6 hours
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Eye Diseases
- Pathological Conditions, Anatomical
- Pupil Disorders
- Dilatation, Pathologic
- Mydriasis
- Physiological Effects of Drugs
- Adrenergic Antagonists
- Adrenergic Agents
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Antihypertensive Agents
- Adrenergic alpha-Antagonists
- Ophthalmic Solutions
- Pharmaceutical Solutions
- Phentolamine
Other Study ID Numbers
- OPI-NYXRM-301 (MIRA-2)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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