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Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety and Efficacy of Nyxol (0.75% Phentolamine Ophthalmic Solution) to Reverse Pharmacologically-Induced Mydriasis

ClinicalTrials.gov ID: NCT04620213

Public ClinicalTrials.gov record NCT04620213. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jun 26, 2026, 8:01 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

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

Study identification

NCT ID
NCT04620213
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Ocuphire Pharma, Inc.
Industry
Enrollment
185 participants

Conditions and interventions

Interventions

  • Phentolamine Ophthalmic Solution 0.75% Drug
  • Phentolamine Ophthalmic Solution Vehicle (Placebo) Other

Drug · Other

Eligibility (public fields only)

Age range
12 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 17, 2020
Primary completion
Dec 22, 2020
Completion
Mar 14, 2021
Last update posted
Sep 10, 2023

2020 – 2021

United States locations

U.S. sites
12
U.S. states
7
U.S. cities
12
Facility City State ZIP Site status
Clinical Site 11 Newport Beach California 92663
Clinical Site 10 San Diego California 92123
Clinical Site 9 Longwood Florida 32779
Clinical Site 6 Orlando Florida 32751
Clinical Site 2 Roswell Georgia 30075
Clinical Site 7 Pittsburg Kansas 66762
Clinical Site 3 Shawnee Mission Kansas 66203
Clinical Site 5 Athens Ohio 45701
Clinical Site 12 Cincinnati Ohio 45242
Clinical Site 1 Cleveland Ohio 44195
Clinical Site 8 Warwick Rhode Island 02888
Clinical Site 4 Memphis Tennessee 38119

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04620213, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Sep 10, 2023 · Synced Jun 26, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04620213 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →