{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Topography+Guided+LASIK",
    "query": {
      "intervention": "Topography Guided LASIK"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T17:29:11.511Z",
  "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": "NCT05486546",
      "title": "Contoura With Phorcides Compared to Wavefront Optimized LASIK",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Contoura with Phorcides",
          "type": "PROCEDURE"
        },
        {
          "name": "WaveLight Wavefront Optimized",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DEVICE"
      ],
      "sponsor": "Daniel Terveen",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "38 Years",
        "sex": "ALL",
        "summary": "21 Years to 38 Years"
      },
      "enrollment_count": 120,
      "start_date": "2022-08-15",
      "completion_date": "2023-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-04-26",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 4,
      "location_summary": "Bozeman, Montana • Omaha, Nebraska • Fargo, North Dakota + 1 more",
      "locations": [
        {
          "city": "Bozeman",
          "state": "Montana"
        },
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Fargo",
          "state": "North Dakota"
        },
        {
          "city": "Sioux Falls",
          "state": "South Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05486546"
    },
    {
      "nct_id": "NCT01028378",
      "title": "Safety and Efficacy Study of Topography-Guided LASIK to Treat Myopia and Hyperopia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Myopia",
        "Hyperopia"
      ],
      "interventions": [
        {
          "name": "T-CAT topography-guided LASIK treatment with the Allegretto Wave Eye-Q 400 Hz Excimer Laser",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Clinical Research Consultants, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 212,
      "start_date": "2009-10",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2016-04-11",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 10,
      "location_summary": "La Quinta, California • San Diego, California • Atlanta, Georgia + 5 more",
      "locations": [
        {
          "city": "La Quinta",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01028378"
    },
    {
      "nct_id": "NCT03292419",
      "title": "Topography-guided LASIK Surgery",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Topography-guided LASIK",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 30,
      "start_date": "2018-06-01",
      "completion_date": "2022-03-31",
      "has_results": false,
      "last_update_posted_date": "2022-04-05",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03292419"
    },
    {
      "nct_id": "NCT05611294",
      "title": "Contralateral Study of Topography Guided LASIK Versus Small Incision Lenticule Extraction",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Topography Guided LASIK Surgery",
          "type": "DEVICE"
        },
        {
          "name": "Small Incision Lenticule Extraction Surgery",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Hoopes Vision",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "22 Years to 50 Years"
      },
      "enrollment_count": 42,
      "start_date": "2022-09-27",
      "completion_date": "2025-06-01",
      "has_results": false,
      "last_update_posted_date": "2024-08-01",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "Draper, Utah",
      "locations": [
        {
          "city": "Draper",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05611294"
    },
    {
      "nct_id": "NCT03075176",
      "title": "Topo-guided LASIK and Photorefractive Keratectomy vs Wavefront LASIK and Photorefractive Keratectomy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Surgery",
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Wavefront optimized LASIK",
          "type": "DEVICE"
        },
        {
          "name": "Wavefront optimized Photorefractive Keratectomy",
          "type": "DEVICE"
        },
        {
          "name": "Topography-guided LASIK",
          "type": "DEVICE"
        },
        {
          "name": "Topography-guided Photorefractive Keratectomy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 39,
      "start_date": "2017-02-13",
      "completion_date": "2019-08-12",
      "has_results": true,
      "last_update_posted_date": "2023-07-17",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03075176"
    },
    {
      "nct_id": "NCT05037370",
      "title": "CONTOURA vs WFO Ablation PRK & LASIK",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Refractive Surgery"
      ],
      "interventions": [
        {
          "name": "Wave-Front Optimized (WFO) ablation vs Topography-guided (TG) ablation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "59th Medical Wing",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 400,
      "start_date": "2021-04-22",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-08-14",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05037370"
    },
    {
      "nct_id": "NCT04903301",
      "title": "Patient Satisfaction With Contoura Vision Topography-Guided LASIK",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Contoura Vision LASIK",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Rush Eye Associates",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "21 Years to 35 Years"
      },
      "enrollment_count": 50,
      "start_date": "2021-05-21",
      "completion_date": "2023-11-01",
      "has_results": false,
      "last_update_posted_date": "2023-11-18",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "Amarillo, Texas",
      "locations": [
        {
          "city": "Amarillo",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04903301"
    },
    {
      "nct_id": "NCT07201298",
      "title": "A Three-Phase Contralateral Comparison of Ray-Tracing Guided LASIK Versus Three Other Refractive Surgery Platforms to Correct Myopia or Myopia With Astigmatism",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Ray-Tracing Guided LASIK",
          "type": "DEVICE"
        },
        {
          "name": "Keratorefractive Lenticule Extraction (KLEx)",
          "type": "DEVICE"
        },
        {
          "name": "WaveFront Optimized LASIK",
          "type": "DEVICE"
        },
        {
          "name": "Topography Guided LASIK",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Hoopes Vision",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "22 Years to 50 Years"
      },
      "enrollment_count": 120,
      "start_date": "2025-09",
      "completion_date": "2029-09",
      "has_results": false,
      "last_update_posted_date": "2025-10-01",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "Draper, Utah",
      "locations": [
        {
          "city": "Draper",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07201298"
    },
    {
      "nct_id": "NCT05588882",
      "title": "Wavefront-guided vs. Topography-guided LASIK",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myopia"
      ],
      "interventions": [
        {
          "name": "Wavefront-guided LASIK",
          "type": "PROCEDURE"
        },
        {
          "name": "Wavefront-guided",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "22 Years to 59 Years"
      },
      "enrollment_count": 50,
      "start_date": "2022-10-19",
      "completion_date": "2024-09-24",
      "has_results": false,
      "last_update_posted_date": "2024-09-26",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05588882"
    },
    {
      "nct_id": "NCT05888337",
      "title": "Comparison of Contoura Vision Outcomes Programmed Using the Manifest Refraction Verses Using Phorcides Planning Software in Patients With Oblique Astigmatism",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Myopia",
        "Astigmatism"
      ],
      "interventions": [
        {
          "name": "Contoura LASIK with Phorcides planning strategy",
          "type": "DEVICE"
        },
        {
          "name": "Contoura LASIK with manifest refraction planning strategy",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Bismarck Lasik",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 9,
      "start_date": "2023-06-20",
      "completion_date": "2023-12-05",
      "has_results": false,
      "last_update_posted_date": "2023-12-13",
      "last_synced_at": "2026-09-03T17:29:11.511Z",
      "location_count": 1,
      "location_summary": "Bismarck, North Dakota",
      "locations": [
        {
          "city": "Bismarck",
          "state": "North Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05888337"
    }
  ]
}