{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Opt-out",
    "query": {
      "intervention": "Opt-out"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 120,
    "total_pages": 12,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Opt-out&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T08:37:40.627Z",
  "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": "NCT02809677",
      "title": "Treating Caregiver Depression to Improve Childhood Asthma: Impact and Mediators",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma",
        "Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Non-Interventional",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "7 Years to 70 Years"
      },
      "enrollment_count": 205,
      "start_date": "2016-06",
      "completion_date": "2020-10",
      "has_results": true,
      "last_update_posted_date": "2025-09-24",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02809677"
    },
    {
      "nct_id": "NCT05571410",
      "title": "BP PAL - Hypertension Chat Bot Pilot",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "HTN Chat bot",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 300,
      "start_date": "2023-01-09",
      "completion_date": "2023-10-31",
      "has_results": false,
      "last_update_posted_date": "2024-07-25",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05571410"
    },
    {
      "nct_id": "NCT01977495",
      "title": "Take Charge of Your Diabetes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Financial Incentive: Fixed Lottery",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 136,
      "start_date": "2013-12",
      "completion_date": "2014-08",
      "has_results": false,
      "last_update_posted_date": "2015-12-09",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01977495"
    },
    {
      "nct_id": "NCT03712553",
      "title": "Behavioral Science and Hepatitis C Screening Outreach",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Opt-Out",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral Economic Messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care Messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "53 Years",
        "maximum_age": "73 Years",
        "sex": "ALL",
        "summary": "53 Years to 73 Years"
      },
      "enrollment_count": 21493,
      "start_date": "2019-03-15",
      "completion_date": "2020-10-15",
      "has_results": false,
      "last_update_posted_date": "2020-12-01",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03712553"
    },
    {
      "nct_id": "NCT05037201",
      "title": "Text Message Nudges for COVID-19 Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Text message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Mitesh Patel",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2000,
      "start_date": "2021-10-11",
      "completion_date": "2021-11-08",
      "has_results": false,
      "last_update_posted_date": "2024-04-25",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05037201"
    },
    {
      "nct_id": "NCT01994603",
      "title": "Expansion to Interdisciplinary HIV Prevention in Women",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV",
        "AIDS",
        "Fetal Alcohol Syndrome",
        "Alcohol Related Neurodevelopmental Disorder"
      ],
      "interventions": [
        {
          "name": "Opt-in or Opt-out testing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Focus Group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "44 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 44 Years · Female only"
      },
      "enrollment_count": 41,
      "start_date": "2012-12",
      "completion_date": "2015-09",
      "has_results": false,
      "last_update_posted_date": "2016-01-14",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01994603"
    },
    {
      "nct_id": "NCT03901547",
      "title": "Emotion Regulation and Burnout Impact on Communication Documentation",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Communication"
      ],
      "interventions": [
        {
          "name": "Communication Skills Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Profile feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Maslach burnout inventory",
          "type": "OTHER"
        },
        {
          "name": "Emotion Regulation Skills Question (ERSQ)",
          "type": "OTHER"
        },
        {
          "name": "Semi-structured interview",
          "type": "OTHER"
        },
        {
          "name": "Priming",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2019-09-15",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2023-08-01",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03901547"
    },
    {
      "nct_id": "NCT04536038",
      "title": "Framing Clinical Trial Enrollment for Patients With Peripheral Artery Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Peripheral Artery Disease"
      ],
      "interventions": [
        {
          "name": "Opt-out",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5176,
      "start_date": "2020-10-05",
      "completion_date": "2024-01-08",
      "has_results": true,
      "last_update_posted_date": "2025-12-24",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04536038"
    },
    {
      "nct_id": "NCT06013176",
      "title": "Behavioral Economic Strategies to Improve PRO Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Encounter-based PRO monitoring",
          "type": "OTHER"
        },
        {
          "name": "Remote PRO monitoring",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 476,
      "start_date": "2023-12-04",
      "completion_date": "2024-09-04",
      "has_results": true,
      "last_update_posted_date": "2025-12-29",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 2,
      "location_summary": "Plainsboro, New Jersey • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Plainsboro",
          "state": "New Jersey"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06013176"
    },
    {
      "nct_id": "NCT05400434",
      "title": "Natural Helpers and PCIT",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Child Behavior",
        "Parenting"
      ],
      "interventions": [
        {
          "name": "Standard Parent-Child Interaction Therapy (PCIT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Natural Helpers (NH)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "2 Years to 12 Years"
      },
      "enrollment_count": 300,
      "start_date": "2018-12-03",
      "completion_date": "2026-12-27",
      "has_results": false,
      "last_update_posted_date": "2026-01-13",
      "last_synced_at": "2026-09-02T08:37:40.627Z",
      "location_count": 2,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05400434"
    }
  ]
}