{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Impression+Cytology",
    "query": {
      "intervention": "Impression Cytology"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T19:33:18.827Z",
  "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": "NCT04493658",
      "title": "Differential Diagnosis of Sjögren's Versus Non-Sjögren's Dry Eye",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Keratoconjunctivitis Sicca",
        "Dry Eye Syndromes",
        "Ocular Surface Disease",
        "Sjogren's Syndrome"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Tear fluid sampling",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Impression Cytology",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 92,
      "start_date": "2021-01-11",
      "completion_date": "2022-10-03",
      "has_results": false,
      "last_update_posted_date": "2023-01-05",
      "last_synced_at": "2026-09-05T19:33:18.827Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04493658"
    },
    {
      "nct_id": "NCT06874283",
      "title": "Ocular Complications From Cancer Therapy - Patient Registry and Biobank",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Graft Versus Host Disease in Eye",
        "Ocular Complications",
        "Inflammatory Dry Eye Disease"
      ],
      "interventions": [
        {
          "name": "Eye exam",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2025-05-13",
      "completion_date": "2031-04",
      "has_results": false,
      "last_update_posted_date": "2026-03-05",
      "last_synced_at": "2026-09-05T19:33:18.827Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06874283"
    },
    {
      "nct_id": "NCT00411827",
      "title": "Goblet Cell Response and Dry Eye Symptoms After PRK and LASIK",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Keratoconjunctivitis Sicca"
      ],
      "interventions": [
        {
          "name": "PRK with conjunctival impression cytology before and after surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "LASIK with conjunctival impression cytology before and after surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Walter Reed National Military Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "21 Years to 40 Years"
      },
      "enrollment_count": 146,
      "start_date": "2008-01",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2024-09-20",
      "last_synced_at": "2026-09-05T19:33:18.827Z",
      "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/NCT00411827"
    },
    {
      "nct_id": "NCT04549363",
      "title": "Characterization of Corneal Epithelial Changes in Participants Treated With Belantamab Mafodotin",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Myeloma"
      ],
      "interventions": [
        {
          "name": "Belantamab mafodotin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2020-12-21",
      "completion_date": "2022-11-21",
      "has_results": true,
      "last_update_posted_date": "2023-12-13",
      "last_synced_at": "2026-09-05T19:33:18.827Z",
      "location_count": 6,
      "location_summary": "San Francisco, California • Atlanta, Georgia • Westwood, Kansas + 3 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Westwood",
          "state": "Kansas"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04549363"
    },
    {
      "nct_id": "NCT04946721",
      "title": "2177GCCC:ID'Ing tx Targets and Biomarkers for Ocular Surface Disease in Pt w/ oGVHD",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Dry Eye Disease",
        "oGVHD"
      ],
      "interventions": [
        {
          "name": "The standard care exam and biological specimens' collection",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 150,
      "start_date": "2022-04-27",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-03",
      "last_synced_at": "2026-09-05T19:33:18.827Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04946721"
    },
    {
      "nct_id": "NCT00798694",
      "title": "How Similar Are Changes to the Surface of the Eye When Two Different Glaucoma Eye Drops Are Used?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Xalatan",
          "type": "DRUG"
        },
        {
          "name": "Travatan Z",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 58,
      "start_date": "2008-11",
      "completion_date": "2011-02",
      "has_results": true,
      "last_update_posted_date": "2018-07-12",
      "last_synced_at": "2026-09-05T19:33:18.827Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00798694"
    }
  ]
}