{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Regret+Lottery",
    "query": {
      "intervention": "Regret Lottery"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T17:42:37.183Z",
  "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": "NCT04114669",
      "title": "Behavioral Economics Trial To Enhance Regulation of Blood Pressure (BETTER-BP)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "High Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Control Condition",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Regret Lottery",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 401,
      "start_date": "2020-07-14",
      "completion_date": "2025-09-12",
      "has_results": true,
      "last_update_posted_date": "2026-05-27",
      "last_synced_at": "2026-09-02T17:42:37.183Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04114669"
    },
    {
      "nct_id": "NCT04013529",
      "title": "Connected Health to Decrease Opioid Use in Patients With Chronic Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain"
      ],
      "interventions": [
        {
          "name": "Regret lottery",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Way to Health technology enhanced care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 40,
      "start_date": "2018-08-31",
      "completion_date": "2020-09-15",
      "has_results": true,
      "last_update_posted_date": "2021-10-27",
      "last_synced_at": "2026-09-02T17:42:37.183Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04013529"
    },
    {
      "nct_id": "NCT04576481",
      "title": "Literacy Promotion Using Automated Hovering",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Parent-Child Relations",
        "Parenting",
        "Literacy"
      ],
      "interventions": [
        {
          "name": "Texting",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Regret",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Lottery",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "24 Months",
        "sex": "ALL",
        "summary": "6 Months to 24 Months"
      },
      "enrollment_count": 55,
      "start_date": "2020-11-17",
      "completion_date": "2022-02-04",
      "has_results": true,
      "last_update_posted_date": "2024-11-15",
      "last_synced_at": "2026-09-02T17:42:37.183Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04576481"
    },
    {
      "nct_id": "NCT00891111",
      "title": "Incentives for Preventative Health Care: Increasing Completion of Health Risk Assessments",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prevention"
      ],
      "interventions": [
        {
          "name": "Direct Payment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Regret Lottery",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Carnegie Mellon University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 634,
      "start_date": "2009-05",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2018-02-05",
      "last_synced_at": "2026-09-02T17:42:37.183Z",
      "location_count": 8,
      "location_summary": "Shelton, Connecticut • Pensacola, Florida • Tampa, Florida + 5 more",
      "locations": [
        {
          "city": "Shelton",
          "state": "Connecticut"
        },
        {
          "city": "Pensacola",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Tinley Park",
          "state": "Illinois"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00891111"
    }
  ]
}