{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=incentive+lottery+large",
    "query": {
      "intervention": "incentive lottery large"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-14T15:59:41.218Z",
  "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": "NCT03939793",
      "title": "Using Digital Health, Financial Incentives, and Community Health Worker Support to Change Health Behavior",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "IMPaCT Community Health Worker",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Digital health monitoring with financial incentives",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "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": 150,
      "start_date": "2019-05-15",
      "completion_date": "2020-07-28",
      "has_results": true,
      "last_update_posted_date": "2024-09-05",
      "last_synced_at": "2026-09-14T15:59:41.218Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03939793"
    },
    {
      "nct_id": "NCT01043757",
      "title": "Financial Incentives for Increasing Exercise",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sedentary Lifestyle",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Financial incentives for increasing physical exercise",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Harvard University",
      "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": "2010-01",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2015-06-24",
      "last_synced_at": "2026-09-14T15:59:41.218Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01043757"
    },
    {
      "nct_id": "NCT04013295",
      "title": "Prize-linked Savings Initiatives for Promoting Better Health and Economic Outcomes in Kenya",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV/AIDS"
      ],
      "interventions": [
        {
          "name": "Prize-linked savings",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "21 Years and older · Male only"
      },
      "enrollment_count": 300,
      "start_date": "2018-09-03",
      "completion_date": "2018-12-18",
      "has_results": false,
      "last_update_posted_date": "2023-04-21",
      "last_synced_at": "2026-09-14T15:59:41.218Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04013295"
    },
    {
      "nct_id": "NCT05827718",
      "title": "Testing Promising Behavioral Economic Interventions to Promote Enrollment Diversity in Cardiovascular Cohort Studies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "Method of Contact",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Source of Contact",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Framing Method (Appeal to Altruism or Social Proof",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Incentive Structure",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26242,
      "start_date": "2023-10-30",
      "completion_date": "2024-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-01-24",
      "last_synced_at": "2026-09-14T15:59:41.218Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05827718"
    },
    {
      "nct_id": "NCT04747327",
      "title": "Incentives & Motivation for Behavior Change:",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Behavior",
        "Intention"
      ],
      "interventions": [
        {
          "name": "mandate public",
          "type": "BEHAVIORAL"
        },
        {
          "name": "employer mandate",
          "type": "BEHAVIORAL"
        },
        {
          "name": "incentive reward",
          "type": "BEHAVIORAL"
        },
        {
          "name": "penalty",
          "type": "BEHAVIORAL"
        },
        {
          "name": "incentive lottery small",
          "type": "BEHAVIORAL"
        },
        {
          "name": "incentive lottery medium",
          "type": "BEHAVIORAL"
        },
        {
          "name": "incentive lottery large",
          "type": "BEHAVIORAL"
        },
        {
          "name": "cash small",
          "type": "BEHAVIORAL"
        },
        {
          "name": "cash medium",
          "type": "BEHAVIORAL"
        },
        {
          "name": "cash large",
          "type": "BEHAVIORAL"
        },
        {
          "name": "invitation for exercise financial incentive study",
          "type": "BEHAVIORAL"
        },
        {
          "name": "invitation for exercise social incentive study",
          "type": "BEHAVIORAL"
        },
        {
          "name": "invitation for sleep social incentive study",
          "type": "BEHAVIORAL"
        },
        {
          "name": "invitation for sleep financial incentive",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4000,
      "start_date": "2021-02-07",
      "completion_date": "2023-12-30",
      "has_results": false,
      "last_update_posted_date": "2024-02-15",
      "last_synced_at": "2026-09-14T15:59:41.218Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04747327"
    }
  ]
}