{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Mailed+letter",
    "query": {
      "intervention": "Mailed letter"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 136,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Mailed+letter&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-04T07:27:02.944Z",
  "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": "NCT04714398",
      "title": "SupportBP 2.0:Behavioral Science and Enrollment in Remote Monitoring for Hypertension Management",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Opt-In Recruitment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Opt-Out Recruitment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 425,
      "start_date": "2021-02-26",
      "completion_date": "2022-08-26",
      "has_results": false,
      "last_update_posted_date": "2022-09-19",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04714398"
    },
    {
      "nct_id": "NCT07290361",
      "title": "Stratified Targeted Engagement From Primary Care to Physical Therapy (STEPPT)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Low Back Pain",
        "Neck Pain"
      ],
      "interventions": [
        {
          "name": "Engagement of clinic leadership (System Intervention - Usual Care)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Engagement of clinic leadership (System Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Registry (System Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Delivery of Patient Education Materials (System Intervention - Usual Care)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Delivery of Patient Education Materials (System Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Referral Specialist Training (System Intervention - Usual Care)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Health Navigator Training (System Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Care Navigation (System Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Care navigation audit and feedback (System Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Primary Care Provider training (Provider Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nurse/Medical Assistant Training (Provider Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Provider feedback on PT referral and adherence (Provider Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient education on spine pain condition (Patient Intervention - Usual Care)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient education on spine pain condition (Patient Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Education on Physical Referral by Providers (Patient Intervention - Usual Care)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Education on Physical Referral by Providers (Patient Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Electronic Patient Education on Physical Therapy Referral (Patient Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient education on physical therapy referral by Referral Specialist (Patient Intervention - Usual Care)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient education on physical therapy referral by Patient Health Navigator (Patient Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Care Navigation (System Intervention - Usual Care)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Monitoring of PT referral and adherence rates (System Intervention - STEPPT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Monitoring of PT referral and adherence rates (System intervention - Usual Care)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 17587,
      "start_date": "2025-12-01",
      "completion_date": "2029-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07290361"
    },
    {
      "nct_id": "NCT01301534",
      "title": "Comparison of Methods to Improve Abdominal Aortic Aneurysm (AAA) Screening Rates in the Primary Care Setting.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Abdominal Aortic Aneurysm"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Mike O'Callaghan Military Hospital",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "75 Years",
        "sex": "MALE",
        "summary": "65 Years to 75 Years · Male only"
      },
      "enrollment_count": 1700,
      "start_date": "2010-12",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2013-11-25",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "Nellis Air Force Base, Nevada",
      "locations": [
        {
          "city": "Nellis Air Force Base",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01301534"
    },
    {
      "nct_id": "NCT01930149",
      "title": "Promoting Cholesterol Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Lipid Testing",
        "Primary Prevention of Cardiovascular Disease"
      ],
      "interventions": [
        {
          "name": "Mailed patient outreach intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "35 Years to 75 Years"
      },
      "enrollment_count": 480,
      "start_date": "2013-12",
      "completion_date": "2014-06",
      "has_results": false,
      "last_update_posted_date": "2014-09-29",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 3,
      "location_summary": "Flagstaff, Arizona • Chicago, Illinois",
      "locations": [
        {
          "city": "Flagstaff",
          "state": "Arizona"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01930149"
    },
    {
      "nct_id": "NCT00819182",
      "title": "Breathe for Hot Flashes Randomized Controlled Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hot Flashes"
      ],
      "interventions": [
        {
          "name": "Paced respiration",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sham comparator: fast shallow breathing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 218,
      "start_date": "2008-04",
      "completion_date": "2013-02",
      "has_results": true,
      "last_update_posted_date": "2016-03-24",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00819182"
    },
    {
      "nct_id": "NCT01336361",
      "title": "Emerging Physical Therapy Practice in Palliative Care: A Survey of Perceptions of Physical Therapists",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Perception"
      ],
      "interventions": [
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Montana",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 228,
      "start_date": "2011-04",
      "completion_date": "2011-05",
      "has_results": false,
      "last_update_posted_date": "2014-09-17",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "Missoula, Montana",
      "locations": [
        {
          "city": "Missoula",
          "state": "Montana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01336361"
    },
    {
      "nct_id": "NCT01603316",
      "title": "Food: A Three-Arm Study Examining Food Insecurity Interventions",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cancer Patients"
      ],
      "interventions": [
        {
          "name": "surveys",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Focus groups",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 606,
      "start_date": "2012-05-08",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2026-06-09",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 10,
      "location_summary": "Brooklyn, New York • Jamaica, New York • New York, New York + 1 more",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        },
        {
          "city": "Jamaica",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01603316"
    },
    {
      "nct_id": "NCT04881708",
      "title": "Post-Surgical Based Efforts to Reduce Preventable Readmissions and Optimize Length of Stay",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Surgery"
      ],
      "interventions": [
        {
          "name": "Remote Monitoring",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2021-04-19",
      "completion_date": "2022-01-18",
      "has_results": false,
      "last_update_posted_date": "2022-07-08",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04881708"
    },
    {
      "nct_id": "NCT02876926",
      "title": "Evaluating a Real-Time, Remote Monitoring System for Home-Based HIV Testing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "\"Smart\" home-based test for HIV",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Home-based testing only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reminder letters for clinic-based testing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 65,
      "start_date": "2016-07",
      "completion_date": "2018-02-15",
      "has_results": true,
      "last_update_posted_date": "2019-04-19",
      "last_synced_at": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02876926"
    },
    {
      "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": "2026-09-04T07:27:02.944Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04576442"
    }
  ]
}