{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Patient+letters",
    "query": {
      "intervention": "Patient letters"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 53,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Patient+letters&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T06:56:13.040Z",
  "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": "NCT01126034",
      "title": "Improving Metoclopramide Prescribing Practices at Penn Through a Physician-targeted Intervention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Gastroesophageal Reflux Disease",
        "Diabetic Gastroparesis"
      ],
      "interventions": [
        {
          "name": "intervention letter",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 85,
      "start_date": "2007-03",
      "completion_date": "2008-04",
      "has_results": false,
      "last_update_posted_date": "2015-12-04",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01126034"
    },
    {
      "nct_id": "NCT05631873",
      "title": "Colonoscopy Screening: Setting Epic Follow-up Times",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Concordance Between Colonoscopy Follow up Interval Noted in Patient Letters vs. Electronic Health Record Chart",
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Assistance with implementing Epic Smartlist",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 43,
      "start_date": "2022-11-18",
      "completion_date": "2024-03-11",
      "has_results": false,
      "last_update_posted_date": "2024-03-12",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05631873"
    },
    {
      "nct_id": "NCT06141499",
      "title": "Using Shared Decision Making to Improve Kidney Transplantation Rates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "End Stage Renal Disease",
        "Kidney Failure"
      ],
      "interventions": [
        {
          "name": "Provider educational materials",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient letters",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2024-01-12",
      "completion_date": "2025-02-21",
      "has_results": false,
      "last_update_posted_date": "2025-06-10",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 2,
      "location_summary": "New York, New York • Cleveland, Ohio",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06141499"
    },
    {
      "nct_id": "NCT03856593",
      "title": "Encouraging Judicious Prescribing of Opioids in Los Angeles County",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Substance-Related Disorders"
      ],
      "interventions": [
        {
          "name": "Standard letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Comparator letter",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 541,
      "start_date": "2019-04-05",
      "completion_date": "2021-08-08",
      "has_results": true,
      "last_update_posted_date": "2023-03-28",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03856593"
    },
    {
      "nct_id": "NCT00365885",
      "title": "Showing Health Information Value in a Community Network",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Clinical Decision Support",
        "Medical Informatics Interventions",
        "Population Health Management",
        "Quality of Healthcare"
      ],
      "interventions": [
        {
          "name": "Computer-based clinical decision support.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 20108,
      "start_date": "2006-08",
      "completion_date": "2008-08",
      "has_results": false,
      "last_update_posted_date": "2014-07-11",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00365885"
    },
    {
      "nct_id": "NCT01039324",
      "title": "Care Transitions for Complex Patient - Cycle 1 and Cycle 2",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma",
        "Coronary Artery Disease",
        "Diabetes",
        "Hypertension",
        "Congestive Heart Failure"
      ],
      "interventions": [
        {
          "name": "Reports",
          "type": "OTHER"
        },
        {
          "name": "Reports and Notices",
          "type": "OTHER"
        },
        {
          "name": "Usual care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 8422,
      "start_date": "2009-12",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2014-05-15",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01039324"
    },
    {
      "nct_id": "NCT05436392",
      "title": "De-adopting Routine Preoperative Benzodiazepines for Older Surgical Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Surgery",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Peer Comparison Feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Informational Letter",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 517611,
      "start_date": "2022-08-08",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-01-18",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05436392"
    },
    {
      "nct_id": "NCT00710996",
      "title": "Blue Light Intraocular Lenses (IOLs) and Photostress",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cataract"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Alcon Research",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 58,
      "start_date": "2008-01",
      "completion_date": "2008-10",
      "has_results": true,
      "last_update_posted_date": "2010-02-02",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Fort Worth, Texas",
      "locations": [
        {
          "city": "Fort Worth",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00710996"
    },
    {
      "nct_id": "NCT02347670",
      "title": "Comparison Study of Glaucoma Eye Care Follow-Up Adherence in a High Risk Population",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Glaucoma"
      ],
      "interventions": [
        {
          "name": "Efficacy-patient navigator to improve follow-up adherence",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Office-Based Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wills Eye",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 155,
      "start_date": "2014-08",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2023-12-13",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02347670"
    },
    {
      "nct_id": "NCT01625416",
      "title": "Trauma Survivors Outcomes and Support Study IV",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Posttraumatic Stress Disorder",
        "Depression",
        "Suicide",
        "Traumatic Brain Injury",
        "Alcohol Use",
        "Drug Use"
      ],
      "interventions": [
        {
          "name": "Stepped Care Management",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "14 Years and older"
      },
      "enrollment_count": 121,
      "start_date": "2012-07",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2017-12-13",
      "last_synced_at": "2026-09-27T06:56:13.040Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01625416"
    }
  ]
}