{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Emails+and+letter+intervention",
    "query": {
      "intervention": "Emails and letter intervention"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 22,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Emails+and+letter+intervention&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-15T01:31:50.935Z",
  "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": "NCT06131723",
      "title": "UCLA Health Patient Health Tickler Email",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Maintenance"
      ],
      "interventions": [
        {
          "name": "Behaviorally informed tickler email",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 81000,
      "start_date": "2023-11-08",
      "completion_date": "2025-11-30",
      "has_results": false,
      "last_update_posted_date": "2025-07-02",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06131723"
    },
    {
      "nct_id": "NCT05348603",
      "title": "Electronic Health Record Strategies to Promote Diverse Participation in Research",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patient Participation"
      ],
      "interventions": [
        {
          "name": "Traditional Letter",
          "type": "OTHER"
        },
        {
          "name": "Direct to Patient Message",
          "type": "OTHER"
        },
        {
          "name": "Chatbot",
          "type": "OTHER"
        },
        {
          "name": "Banner",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 726199,
      "start_date": "2022-09-13",
      "completion_date": "2023-11-14",
      "has_results": false,
      "last_update_posted_date": "2023-12-11",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05348603"
    },
    {
      "nct_id": "NCT04587063",
      "title": "Evaluation of Emails Promoting Mail-order Pharmacy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Care Utilization"
      ],
      "interventions": [
        {
          "name": "Fear Appeals",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Message about Future Healthcare Costs",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Endorsement from a Doctor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Comparison Table",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Highlighting Cost Savings and Convenience",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5266,
      "start_date": "2020-10-13",
      "completion_date": "2020-10-20",
      "has_results": false,
      "last_update_posted_date": "2020-10-27",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04587063"
    },
    {
      "nct_id": "NCT06235112",
      "title": "AI Detection of Incidental Coronary Artery Calcium to Enhance Cardiovascular Disease Prevention",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Coronary Artery Disease"
      ],
      "interventions": [
        {
          "name": "Electronic health record-based notification of Nanox.AI Coronary Artery Calcification Assessment",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 1500,
      "start_date": "2024-07-31",
      "completion_date": "2027-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-23",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06235112"
    },
    {
      "nct_id": "NCT06892275",
      "title": "The FYI on MRI: A Multilevel Decision Support Intervention for Screening Breast MRI",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Neoplasm Female",
        "Early Detection of Cancer",
        "Hereditary Breast and Ovarian Cancer Syndrome",
        "Magnetic Resonance Imaging"
      ],
      "interventions": [
        {
          "name": "Enhanced Usual Care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Decision Support",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "74 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 74 Years · Female only"
      },
      "enrollment_count": 80,
      "start_date": "2025-06-01",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "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/NCT06892275"
    },
    {
      "nct_id": "NCT03147716",
      "title": "Parent Engagement Package: Comparing Strategies for Engaging Parents Into Parenting Programs",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patient Compliance"
      ],
      "interventions": [
        {
          "name": "Enrollment Flyer",
          "type": "OTHER"
        },
        {
          "name": "Testimonial Booklet",
          "type": "OTHER"
        },
        {
          "name": "Teacher Endorsement",
          "type": "OTHER"
        },
        {
          "name": "Provider Engagement Call",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Arizona State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 854,
      "start_date": "2013-10",
      "completion_date": "2017-06",
      "has_results": false,
      "last_update_posted_date": "2019-08-09",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03147716"
    },
    {
      "nct_id": "NCT02249533",
      "title": "Evaluation of Spot Light: A Concussion Injury Management App for Youth Sports",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "TBI"
      ],
      "interventions": [
        {
          "name": "Spot Light Concussion App",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Lara McKenzie",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "10 Years to 19 Years"
      },
      "enrollment_count": 175,
      "start_date": "2013-12",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2017-02-01",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02249533"
    },
    {
      "nct_id": "NCT05264532",
      "title": "Usefulness of Video-Based Intervention in Helping Participants Encourage Their Families to Get Tested for BRCA Gene Mutations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "BRCA1 Gene Mutation",
        "BRCA2 Gene Mutation"
      ],
      "interventions": [
        {
          "name": "Informational Intervention",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 58,
      "start_date": "2018-04-05",
      "completion_date": "2025-06-07",
      "has_results": false,
      "last_update_posted_date": "2026-02-10",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05264532"
    },
    {
      "nct_id": "NCT05571657",
      "title": "COVID-19 Booster Dose Reminder/Recall for Adolescents",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19 Vaccines"
      ],
      "interventions": [
        {
          "name": "Reminder/Recall Sent Via Preferred Method of Communication",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Marshfield Clinic Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 4304,
      "start_date": "2022-05-12",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-10-13",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "Marshfield, Wisconsin",
      "locations": [
        {
          "city": "Marshfield",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05571657"
    },
    {
      "nct_id": "NCT04576442",
      "title": "Evaluation of the Asthma Management Program to Promote Activity for Students in Schools (Asthma-PASS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma in Children"
      ],
      "interventions": [
        {
          "name": "Asthma-PASS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Basic Asthma Management (AM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Child/Caregiver Education session",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "4 Years to 12 Years"
      },
      "enrollment_count": 452,
      "start_date": "2021-02-09",
      "completion_date": "2025-08-27",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-09-15T01:31:50.935Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04576442"
    }
  ]
}