{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Commitment+contract",
    "query": {
      "intervention": "Commitment contract"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Commitment+contract&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-10T15:29:33.901Z",
  "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": "NCT04587609",
      "title": "Reducing Cell Phone Use While Driving Among High Risk UBI Auto Policy Holders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Distracted Driving",
        "Driving Impaired"
      ],
      "interventions": [
        {
          "name": "Free Phone Mounts",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Commitment Contract",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Personalized Habit Tips",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social Gamification Feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "\"Contest\" Financial Incentives",
          "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": 1668,
      "start_date": "2021-03-01",
      "completion_date": "2021-06-30",
      "has_results": false,
      "last_update_posted_date": "2021-07-02",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04587609"
    },
    {
      "nct_id": "NCT04836312",
      "title": "Intermittent Fasting Adherence and Self Tracking",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Soft Commitment Device",
          "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": 37,
      "start_date": "2021-07-12",
      "completion_date": "2022-08-28",
      "has_results": true,
      "last_update_posted_date": "2023-12-01",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04836312"
    },
    {
      "nct_id": "NCT06064981",
      "title": "BE Intervention for Naloxone Uptake",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Harm Reduction"
      ],
      "interventions": [
        {
          "name": "Text message nudges",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Commitment contract",
          "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": 137,
      "start_date": "2019-02-01",
      "completion_date": "2019-12-29",
      "has_results": false,
      "last_update_posted_date": "2024-01-05",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06064981"
    },
    {
      "nct_id": "NCT01455740",
      "title": "A Commitment Device for Medication Adherence Among HIV Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acquired Immunodeficiency Syndrome",
        "HIV"
      ],
      "interventions": [
        {
          "name": "Provider Visit Incentive (PVI)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Incentive Choice (IC)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "National Bureau of Economic Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 110,
      "start_date": "2011-10",
      "completion_date": "2014-10",
      "has_results": false,
      "last_update_posted_date": "2017-12-18",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01455740"
    },
    {
      "nct_id": "NCT03222908",
      "title": "Perioperative Smoking Cessation Interventions",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Perioperative/Postoperative Complications"
      ],
      "interventions": [
        {
          "name": "Intervention1: Contract Agreement",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Intervention2: Implementation Intentions",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 19,
      "start_date": "2017-08-15",
      "completion_date": "2018-07-30",
      "has_results": false,
      "last_update_posted_date": "2018-12-26",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03222908"
    },
    {
      "nct_id": "NCT04942535",
      "title": "STEP Together: An Effectiveness-Implementation Study of Social Incentives and Physical Activity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Physical Activity"
      ],
      "interventions": [
        {
          "name": "Social Incentive Gamification",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social Goals through Incentives to Charity",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Daily Performance Feedback",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "14 Years and older"
      },
      "enrollment_count": 779,
      "start_date": "2021-09-21",
      "completion_date": "2025-10-11",
      "has_results": false,
      "last_update_posted_date": "2026-04-07",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04942535"
    },
    {
      "nct_id": "NCT05736484",
      "title": "Randomized Clinical Trial to Improve Mobility After Hospitalization",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension",
        "Diabetes",
        "Heart Failure",
        "Ambulatory Difficulty",
        "Mobility Limitation"
      ],
      "interventions": [
        {
          "name": "Social Support Gamification",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 350,
      "start_date": "2023-09-19",
      "completion_date": "2026-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-06",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05736484"
    },
    {
      "nct_id": "NCT02596061",
      "title": "In It To Quit: Commitment Contracts for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Deposit Contract",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Incentives",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Community Health Center, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 311,
      "start_date": "2015-11",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2018-01-26",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Middletown, Connecticut",
      "locations": [
        {
          "city": "Middletown",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02596061"
    },
    {
      "nct_id": "NCT04642235",
      "title": "Nature and Well-Being Project",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Environmental Exposure",
        "Health Behavior",
        "Health, Subjective"
      ],
      "interventions": [
        {
          "name": "Nature Nook",
          "type": "OTHER"
        },
        {
          "name": "Nature Coach",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nature Nook + Nature Coach",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "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": 74,
      "start_date": "2021-04-12",
      "completion_date": "2022-08-23",
      "has_results": false,
      "last_update_posted_date": "2022-09-01",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04642235"
    },
    {
      "nct_id": "NCT04224727",
      "title": "The Impact of Group Commitment Contracts on Smoking Cessation and Weight Loss",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Weight Loss"
      ],
      "interventions": [
        {
          "name": "Group Commitment Contract",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Individual Monetary Rewards",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Individual Commitment Contract",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Information",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "National Bureau of Economic Research, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3600,
      "start_date": "2023-12-18",
      "completion_date": "2025-06-19",
      "has_results": false,
      "last_update_posted_date": "2024-04-16",
      "last_synced_at": "2026-09-10T15:29:33.901Z",
      "location_count": 1,
      "location_summary": "Evanston, Illinois",
      "locations": [
        {
          "city": "Evanston",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04224727"
    }
  ]
}