{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photorefractive+Keratectomy+%28PRK%29",
    "query": {
      "intervention": "Photorefractive Keratectomy (PRK)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 40,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Photorefractive+Keratectomy+%28PRK%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T22:42:14.247Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT01059019",
      "title": "Epithelial Healing and Visual Outcomes Using Omega-3 Therapy Before and After Photorefractive Keratectomy (PRK) Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Error"
      ],
      "interventions": [
        {
          "name": "Omega-3 Fatty Acid Supplements",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "28 Years",
        "sex": "ALL",
        "summary": "18 Years to 28 Years"
      },
      "enrollment_count": 17,
      "start_date": "2010-01",
      "completion_date": "2011-05",
      "has_results": false,
      "last_update_posted_date": "2013-06-21",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01059019"
    },
    {
      "nct_id": "NCT01193231",
      "title": "A 6 Month Study to Evaluate the Safety, Analgesic Efficacy of ACUVAIL™ (Ketorolac Tromethamine Ophthalmic Solution) 0.45%, in Post-PRK Corneal Wound Healing",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Must be PRK Candidate"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Durrie Vision",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "18 Years to 39 Years"
      },
      "enrollment_count": 10,
      "start_date": "2010-08",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2012-02-14",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01193231"
    },
    {
      "nct_id": "NCT00713856",
      "title": "Comparison of Conventional and Custom Photorefractive Keratectomy (PRK)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Custom PRK with iris registration",
          "type": "PROCEDURE"
        },
        {
          "name": "Conventional PRK",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 44,
      "start_date": "2007-11",
      "completion_date": "2010-05",
      "has_results": false,
      "last_update_posted_date": "2010-10-19",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00713856"
    },
    {
      "nct_id": "NCT05045508",
      "title": "Investigator Initiated Study to Assess the Efficacy of OC-01 (Varenicline) Nasal Spray on Signs and Symptoms of Dry Eye Disease Following Photorefractive Keratectomy (PRK)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dry Eye"
      ],
      "interventions": [
        {
          "name": "OC-01 (varenicline 0.6mg/ml) nasal spray",
          "type": "DRUG"
        },
        {
          "name": "Placebo (vehicle) Nasal Spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Brandon Baartman",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2021-08-30",
      "completion_date": "2023-01-30",
      "has_results": false,
      "last_update_posted_date": "2021-09-22",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05045508"
    },
    {
      "nct_id": "NCT00415077",
      "title": "A Comparison of Photorefractive Keratectomy (PRK), PRK With Mitomycin-C and Laser Subepithelial Keratomileusis (LASEK) in the Treatment of Moderate and High Myopia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "MODERATE AND HIGH MYOPIA"
      ],
      "interventions": [
        {
          "name": "PRK",
          "type": "PROCEDURE"
        },
        {
          "name": "MMC PRK",
          "type": "PROCEDURE"
        },
        {
          "name": "LASEK",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Walter Reed Army Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 960,
      "start_date": "2004-06",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2010-07-16",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00415077"
    },
    {
      "nct_id": "NCT00412568",
      "title": "Evaluation of Conventional Photorefractive Keratectomy (PRK) in U.S. Army Personnel, Substudy of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Photorefractive Keratectomy (PRK)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Walter Reed Army Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2004-05",
      "completion_date": "2008-03",
      "has_results": false,
      "last_update_posted_date": "2008-04-01",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00412568"
    },
    {
      "nct_id": "NCT05477875",
      "title": "Cannabinoid vs Opioid for Photorefractive Keratectomy Pain Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Photorefractive Keratectomy",
        "Myopia",
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "oral cannabinoid",
          "type": "DRUG"
        },
        {
          "name": "oral codeine/acetaminophen",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 35,
      "start_date": "2024-02-01",
      "completion_date": "2025-01-22",
      "has_results": true,
      "last_update_posted_date": "2025-08-07",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05477875"
    },
    {
      "nct_id": "NCT00330798",
      "title": "A Comparison of Topical Nepafenac to Placebo in Corneal Epithelial Healing Times and Postoperative Pain Relief",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Photorefractive Keratectomy"
      ],
      "interventions": [
        {
          "name": "nepafenac 0.1%",
          "type": "DRUG"
        },
        {
          "name": "ketorolac 0.4%",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2006-02",
      "completion_date": "2006-06",
      "has_results": false,
      "last_update_posted_date": "2016-11-18",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00330798"
    },
    {
      "nct_id": "NCT01135719",
      "title": "A Comparison of Fellow Eyes Undergoing LASIK or PRK With a Wavefront-guided Excimer Laser Versus a Wavefront-optimized Excimer Laser",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hyperopia",
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "LASIK and PRK",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Edward E. Manche",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 137,
      "start_date": "2009-04",
      "completion_date": "2022-12-03",
      "has_results": false,
      "last_update_posted_date": "2022-12-07",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01135719"
    },
    {
      "nct_id": "NCT04598932",
      "title": "Corneal Biomechanical Analysis Using Brillouin Microscopy",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Keratoconus",
        "Keratoconus, Unstable",
        "Keratoconus, Stable"
      ],
      "interventions": [
        {
          "name": "Brillouin microscopy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 220,
      "start_date": "2021-06-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-09-29T22:42:14.247Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04598932"
    }
  ]
}