A Study to Investigate the Safety and Efficacy of Ripasudil (K-321) Eye Drops After Cataract Surgery
Public ClinicalTrials.gov record NCT05528172. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Double-Masked, Randomized, Placebo-Controlled, Parallel-Group, 12-Week Treatment and 14-week Extension, Phase 3 Study to Investigate the Safety and Efficacy of Ripasudil (K-321) Eye Drops After Cataract Surgery
Study identification
- NCT ID
- NCT05528172
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Kowa Research Institute, Inc.
- Industry
- Enrollment
- 331 participants
Conditions and interventions
Conditions
Interventions
- Ripasudil Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 3, 2022
- Primary completion
- Jun 21, 2023
- Completion
- Jun 21, 2023
- Last update posted
- May 23, 2024
2022 – 2023
United States locations
- U.S. sites
- 44
- U.S. states
- 19
- U.S. cities
- 40
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Cornea and Cataract Consultants of Arizona | Phoenix | Arizona | 85032 | — |
| Schwartz Laser Eye Center | Scottsdale | Arizona | 85260 | — |
| Inland Eye Specialists | Hemet | California | 92545 | — |
| United Medical Research Institute | Inglewood | California | 90301 | — |
| Alvarado Eye Associates | La Mesa | California | 91942 | — |
| SoCal Eye Physicians and Associates | Long Beach | California | 90805 | — |
| Visionary Research Institute | Newport Beach | California | 92663 | — |
| Pendleton Eye Center | Oceanside | California | 92056 | — |
| North Bay Eye Associates | Petaluma | California | 94954 | — |
| Martel Eye Medical Group | Rancho Cordova | California | 95670 | — |
| Premiere Practice Management, LLC | Torrance | California | 90505 | — |
| Wolstan and Goldberg Eye Associates | Torrance | California | 90505 | — |
| Icon Eye Care | Grand Junction | Colorado | 81501 | — |
| Eye Associates of Fort Myers | Fort Myers | Florida | 33901 | — |
| Levenson Eye Associates | Jacksonville | Florida | 32204 | — |
| International Research Center | Tampa | Florida | 33603 | — |
| Clayton Eye Clinical Research, LLC | Morrow | Georgia | 30260 | — |
| Durrie Vision | Overland Park | Kansas | 66210 | — |
| Eye Care Institute/Butchertown Clinical Trials | Louisville | Kentucky | 40206 | — |
| Maine Eye Center | Portland | Maine | 04101 | — |
| Fraser Eye Care Center | Fraser | Michigan | 48026 | — |
| Silverstein Eye Centers | Kansas City | Missouri | 64133 | — |
| Tekwani Vision Center | St Louis | Missouri | 63128 | — |
| Ophthalmology Associates | St Louis | Missouri | 63131 | — |
| Ophthalmology Consultantants, Ltd. | St Louis | Missouri | 63131 | — |
| Comprehensive Eye Care, Ltd. | Washington | Missouri | 63090 | — |
| Vance Thompson Vision-MT | Bozeman | Montana | 59718 | — |
| Vance Thompson Vision- NE | Omaha | Nebraska | 68137 | — |
| Wellish Vision Institute | Las Vegas | Nevada | 89119 | — |
| Center for Sight | Las Vegas | Nevada | 89145 | — |
| NYU Grossman School of Medicine | New York | New York | 10017 | — |
| Seeta Eye Center | Poughkeepsie | New York | 12603 | — |
| Vance Thompson Vision ND | West Fargo | North Dakota | 58078 | — |
| Cincinnati Eye Institute | Cincinnati | Ohio | 45242 | — |
| Cincinnati Eye Institute | Mason | Ohio | 45040 | — |
| Eye Care Specialists | Kingston | Pennsylvania | 18704 | — |
| Vance Thompson Vision | Sioux Falls | South Dakota | 57108 | — |
| Keystone Research | Austin | Texas | 78751 | — |
| Hill Country Eye Center | Cedar Park | Texas | 78613 | — |
| Louis M. Alpern, M.D., M.P.H.,P.A. | El Paso | Texas | 79902 | — |
| Houston Eye Associates | Houston | Texas | 77008 | — |
| Lake Travis Eye & Laser Center | Lakeway | Texas | 78738 | — |
| DCT-Shah Research, LLC dba Discovery Clinical Trials | Mission | Texas | 78572 | — |
| Terry Eye Associates | San Antonio | Texas | 78212 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT05528172, 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 May 23, 2024 · Synced Jul 22, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT05528172 live on ClinicalTrials.gov.