{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Postcard&page=2",
    "query": {
      "intervention": "Postcard",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Postcard&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T00:04:06.990Z",
  "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": "NCT01557621",
      "title": "Comparative Effectiveness Trial of Two Reminder/Recall Methods to Increase Immunization Rates in Young Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Immunization Rates"
      ],
      "interventions": [
        {
          "name": "Collaborative Pop-Based R/R: Phone/Mail Group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Collaborative Pop-Based R/R: Mail-Only Group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Practice-based Recall",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Months",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "19 Months to 5 Years"
      },
      "enrollment_count": 68000,
      "start_date": "2012-09",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2015-12-16",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Denver, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01557621"
    },
    {
      "nct_id": "NCT03987490",
      "title": "Usability of HPV Vaccine Reminders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papilloma Virus (HPV)"
      ],
      "interventions": [
        {
          "name": "Text Message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "PostCard",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard of Care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Motivational Interview",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 325,
      "start_date": "2015-12-01",
      "completion_date": "2016-12-15",
      "has_results": false,
      "last_update_posted_date": "2020-05-19",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03987490"
    },
    {
      "nct_id": "NCT02268682",
      "title": "Explore Transplant at Home: Improving Low-Income ESRD Patients' Transplant Knowledge",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "End Stage Renal Disease"
      ],
      "interventions": [
        {
          "name": "Patient-Guided",
          "type": "OTHER"
        },
        {
          "name": "Educator-Guided",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The Methodist Hospital Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "18 Years to 74 Years"
      },
      "enrollment_count": 558,
      "start_date": "2014-07",
      "completion_date": "2016-08",
      "has_results": false,
      "last_update_posted_date": "2023-12-28",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02268682"
    },
    {
      "nct_id": "NCT06569290",
      "title": "Refinement and Testing of Recruitment Methodology for Behavioral Medication Adherence Interventions Using Behavioral Science-based Approaches",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Pharmacist-Patient Relations",
        "Medication Adherence"
      ],
      "interventions": [
        {
          "name": "Primer postcard",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control recruitment letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral theory-informed recruitment letter (prospect theory)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "2 phone calls",
          "type": "BEHAVIORAL"
        },
        {
          "name": "4 phone calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 590,
      "start_date": "2025-03-03",
      "completion_date": "2026-06-15",
      "has_results": false,
      "last_update_posted_date": "2026-07-07",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06569290"
    },
    {
      "nct_id": "NCT07477964",
      "title": "Postcards to Improve Remote Monitoring Connectivity Among Veterans With a Disconnected CIED",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "ICD",
        "Pacemaker",
        "Implanted Loop Recorder",
        "Remote Monitoring",
        "Adherence, Patient"
      ],
      "interventions": [
        {
          "name": "Tailored Postcards",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "San Francisco VA Health Care System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1312,
      "start_date": "2024-08-05",
      "completion_date": "2025-08-21",
      "has_results": false,
      "last_update_posted_date": "2026-03-17",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07477964"
    },
    {
      "nct_id": "NCT01565161",
      "title": "Healthy Habits, Happy Homes: An Intervention to Improve Household Routines for Obesity Prevention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Home-Based Health Coaching",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mailed materials",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Harvard Pilgrim Health Care",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "2 Years to 5 Years"
      },
      "enrollment_count": 117,
      "start_date": "2011-06",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2018-02-23",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01565161"
    },
    {
      "nct_id": "NCT01819493",
      "title": "Parents and Children Together Preventing Diabetes (PACT PD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Prevention"
      ],
      "interventions": [
        {
          "name": "Lifestyle Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Family-Based intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "8 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2013-03",
      "completion_date": "2015-04-16",
      "has_results": false,
      "last_update_posted_date": "2018-08-15",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01819493"
    },
    {
      "nct_id": "NCT05853848",
      "title": "Mammogram Mail- and Phone-based Interventions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Postcard",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Auto-dialer",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Live call",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "51 Years",
        "maximum_age": "74 Years",
        "sex": "FEMALE",
        "summary": "51 Years to 74 Years · Female only"
      },
      "enrollment_count": 14386,
      "start_date": "2023-05-10",
      "completion_date": "2024-07-31",
      "has_results": false,
      "last_update_posted_date": "2024-10-10",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05853848"
    },
    {
      "nct_id": "NCT01172561",
      "title": "Community Awareness Resources and Education - Project 1",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cervical Cancer"
      ],
      "interventions": [
        {
          "name": "Lay Health Advisor Education Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care Group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 280,
      "start_date": "2005-03-01",
      "completion_date": "2009-03-31",
      "has_results": false,
      "last_update_posted_date": "2023-03-23",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01172561"
    },
    {
      "nct_id": "NCT06101056",
      "title": "Code of Respect (X-CoRe): Trial of a Multi-level Sexual Assault and Sexual Harassment Prevention Intervention for Active Duty Airmen",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sexual Assault",
        "Sexual Harassment"
      ],
      "interventions": [
        {
          "name": "Junior Enlisted Component",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Leadership Component",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social Marketing Campaign",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1200,
      "start_date": "2024-12-17",
      "completion_date": "2027-05-31",
      "has_results": false,
      "last_update_posted_date": "2025-01-28",
      "last_synced_at": "2026-09-03T00:04:06.990Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06101056"
    }
  ]
}