{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Opt+Out+Treatment+Program",
    "query": {
      "intervention": "Opt Out Treatment Program"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T12:44:05.552Z",
  "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": "NCT04832659",
      "title": "Assessment of Biomarkers in Children to Help Parents Quit Tobacco",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Dependence"
      ],
      "interventions": [
        {
          "name": "CEASE",
          "type": "BEHAVIORAL"
        },
        {
          "name": "CEASE + BIO",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 865,
      "start_date": "2023-01-20",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04832659"
    },
    {
      "nct_id": "NCT04869917",
      "title": "Behavioral Nudges for Diabetes Prevention (BEGIN) Trial in Primary Care",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "PreDiabetes"
      ],
      "interventions": [
        {
          "name": "Decision Aid intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text Messaging intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "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": 960,
      "start_date": "2022-03-21",
      "completion_date": "2026-09-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-04",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04869917"
    },
    {
      "nct_id": "NCT06908187",
      "title": "Opt-In Early Pilot Study",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Autism Spectrum Disorder"
      ],
      "interventions": [
        {
          "name": "Opt-In Early Latinx intervention",
          "type": "OTHER"
        },
        {
          "name": "Opt-In Early Rural Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "15 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "15 Months and older"
      },
      "enrollment_count": 120,
      "start_date": "2025-12",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2025-04-03",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 2,
      "location_summary": "Hartford, Connecticut • Portland, Oregon",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06908187"
    },
    {
      "nct_id": "NCT03246763",
      "title": "Active Recreation Through Community-Healthcare Engagement Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Childhood Obesity",
        "Quality of Life"
      ],
      "interventions": [
        {
          "name": "Integrated community-healthcare childhood obesity treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "2 Years to 18 Years"
      },
      "enrollment_count": 202,
      "start_date": "2018-06-07",
      "completion_date": "2020-05-01",
      "has_results": false,
      "last_update_posted_date": "2020-08-14",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 7,
      "location_summary": "Biscoe, North Carolina • Durham, North Carolina • Fayetteville, North Carolina + 3 more",
      "locations": [
        {
          "city": "Biscoe",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Fayetteville",
          "state": "North Carolina"
        },
        {
          "city": "Goldsboro",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03246763"
    },
    {
      "nct_id": "NCT05839210",
      "title": "Lifestyle Intervention of Food and Exercise for Lymphoma Survivors",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Non Hodgkin Lymphoma",
        "Hodgkin Lymphoma"
      ],
      "interventions": [
        {
          "name": "LIFE-L Mediterranean Diet",
          "type": "BEHAVIORAL"
        },
        {
          "name": "LIFE-L Home-Based Exercise Program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Supportive Materials",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 140,
      "start_date": "2023-04-26",
      "completion_date": "2026-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-30",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05839210"
    },
    {
      "nct_id": "NCT05997225",
      "title": "Tobacco Cessation at FDNY",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Tobacco Use",
        "Tobacco Smoking",
        "Tobacco Use Cessation"
      ],
      "interventions": [
        {
          "name": "opt out enrollment, tailored counseling, varenicline started prior to target quit date",
          "type": "OTHER"
        },
        {
          "name": "opt in enrollment, non-tailored counseling, varenicline started prior to target quit date",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Albert Einstein College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 23,
      "start_date": "2024-05-31",
      "completion_date": "2025-10-13",
      "has_results": false,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 1,
      "location_summary": "Brooklyn, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05997225"
    },
    {
      "nct_id": "NCT01852877",
      "title": "Seek, Test, Treat, Retain: An Integrated Jail-Prison-Community Model for Illinois",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Corrections case management",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 784,
      "start_date": "2013-07",
      "completion_date": "2016-06-30",
      "has_results": false,
      "last_update_posted_date": "2019-11-15",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01852877"
    },
    {
      "nct_id": "NCT02721082",
      "title": "Changing the Default for Tobacco Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Tobacco Use Cessation"
      ],
      "interventions": [
        {
          "name": "Opt Out Treatment Program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicotine Replacement Therapy",
          "type": "DRUG"
        },
        {
          "name": "Opt In Treatment Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "University of Kansas 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": 1000,
      "start_date": "2016-09-01",
      "completion_date": "2020-12-09",
      "has_results": true,
      "last_update_posted_date": "2022-12-01",
      "last_synced_at": "2026-09-03T12:44:05.552Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02721082"
    },
    {
      "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": "2026-09-03T12:44:05.552Z",
      "location_count": 2,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05400434"
    }
  ]
}