{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Mailer",
    "query": {
      "intervention": "Mailer"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 23,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Mailer&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T09:22:11.565Z",
  "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": "NCT02123212",
      "title": "Birth-Cohort Evaluation to Advance Screening and Testing for Hepatitis C",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatitis C",
        "Chronic Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Mailer",
          "type": "OTHER"
        },
        {
          "name": "In-person recruitment",
          "type": "OTHER"
        },
        {
          "name": "EHR Alert",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "National Opinion Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "47 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "47 Years to 69 Years"
      },
      "enrollment_count": 29607,
      "start_date": "2013-02",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2015-03-26",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 3,
      "location_summary": "Birmingham, Alabama • Detroit, Michigan • New York, New York",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02123212"
    },
    {
      "nct_id": "NCT05115916",
      "title": "Effect of Patient Portal Messaging Before Mailing Fecal Immunochemical Testing Kit on Colorectal Cancer Screening Rates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer",
        "Colorectal Neoplasms",
        "Colorectal Cancer Screening"
      ],
      "interventions": [
        {
          "name": "MyChart Priming Message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "51 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "51 Years to 75 Years"
      },
      "enrollment_count": 3880,
      "start_date": "2019-08-28",
      "completion_date": "2020-12-20",
      "has_results": false,
      "last_update_posted_date": "2021-11-10",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 1,
      "location_summary": "Westwood, Los Angeles, California",
      "locations": [
        {
          "city": "Westwood, Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05115916"
    },
    {
      "nct_id": "NCT07281599",
      "title": "Evaluation of the Q-Pad hrHPV Test System for Identifying Precancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HPV Infection",
        "HPV 16 Infection",
        "High Risk HPV",
        "Cervical Cancer Screening",
        "Cervical Cancer Cin Grade",
        "Cervical Cancer (Early Detection)",
        "HPV",
        "HPV (Human Papillomavirus)-Associated",
        "HPV DNA",
        "HPV Infections",
        "Screening Test"
      ],
      "interventions": [
        {
          "name": "Q-Pad hrHPV Test System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Qurasense",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "25 Years and older · Female only"
      },
      "enrollment_count": 450,
      "start_date": "2025-12-01",
      "completion_date": "2027-03",
      "has_results": false,
      "last_update_posted_date": "2026-07-24",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 3,
      "location_summary": "New Haven, Connecticut • Minneapolis, Minnesota • Akron, Ohio",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Akron",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07281599"
    },
    {
      "nct_id": "NCT05080231",
      "title": "COVID-19 Immunity Assessment",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "DxTerity Diagnostics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "13 Years and older"
      },
      "enrollment_count": 662,
      "start_date": "2021-07-15",
      "completion_date": "2021-09-10",
      "has_results": false,
      "last_update_posted_date": "2023-08-14",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 1,
      "location_summary": "Compton, California",
      "locations": [
        {
          "city": "Compton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05080231"
    },
    {
      "nct_id": "NCT03685981",
      "title": "Methods to Improve Preventative Care Uptake",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Knowledge, Attitudes, Practice"
      ],
      "interventions": [
        {
          "name": "Incentives mailer",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 3145,
      "start_date": "2018-08-13",
      "completion_date": "2019-12-05",
      "has_results": false,
      "last_update_posted_date": "2020-12-14",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03685981"
    },
    {
      "nct_id": "NCT04746469",
      "title": "Using Behavioral Science to Improve Colorectal Cancer Screening Rates With Mailed FIT Kits",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer Screening"
      ],
      "interventions": [
        {
          "name": "Delayed automated phone call",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 2500,
      "start_date": "2020-09-02",
      "completion_date": "2022-08-01",
      "has_results": false,
      "last_update_posted_date": "2022-09-13",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04746469"
    },
    {
      "nct_id": "NCT05468333",
      "title": "\"Natural\" and \"Organic\" Cigarette Descriptors: Association With Expectancies, Subjective Effects, Topography, and Biomarkers of Exposure Among Daily Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Behaviors"
      ],
      "interventions": [
        {
          "name": "Cigarette trial",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Nevada, Reno",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 184,
      "start_date": "2022-01-20",
      "completion_date": "2024-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-31",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 3,
      "location_summary": "Reno, Nevada • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Reno",
          "state": "Nevada"
        },
        {
          "city": "Reno",
          "state": "Nevada"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05468333"
    },
    {
      "nct_id": "NCT04548765",
      "title": "Evaluation of Letters Promoting Colorectal Cancer Testing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer Colorectal"
      ],
      "interventions": [
        {
          "name": "Letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Loss Frame and Fear Appeals",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Transparency",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Default Effect and Presentation of Alternatives",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enhanced Fear Appeals and Decoy Effect",
          "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": 14644,
      "start_date": "2020-07-24",
      "completion_date": "2021-07-23",
      "has_results": false,
      "last_update_posted_date": "2021-09-24",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04548765"
    },
    {
      "nct_id": "NCT05000619",
      "title": "Encouraging Overdue Healthcare Appointment Scheduling Among Patients With Chronic Diseases",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Promotion",
        "Prevention",
        "Risk Reduction Behavior"
      ],
      "interventions": [
        {
          "name": "Outreach mailer",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Humor/Salience",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Doctor's authority",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Information",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 21562,
      "start_date": "2021-07-12",
      "completion_date": "2022-08-26",
      "has_results": false,
      "last_update_posted_date": "2022-12-01",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05000619"
    },
    {
      "nct_id": "NCT03718221",
      "title": "Geographically Clustered Mailing of Fecal Immunochemical Test (FIT) Kits",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Usual Care FIT Screening Strategy",
          "type": "OTHER"
        },
        {
          "name": "GeoMail FIT Screening Strategy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "50 Years to 64 Years"
      },
      "enrollment_count": 8653,
      "start_date": "2018-08-30",
      "completion_date": "2021-08-30",
      "has_results": false,
      "last_update_posted_date": "2021-11-30",
      "last_synced_at": "2026-09-02T09:22:11.565Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03718221"
    }
  ]
}