{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fixed+payments",
    "query": {
      "intervention": "Fixed payments"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 11,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fixed+payments&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T01:52:24.459Z",
  "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": "NCT05022862",
      "title": "Economic Incentives and vDOT for Latent Tuberculosis Infection",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Latent Tuberculosis"
      ],
      "interventions": [
        {
          "name": "Usual Care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Video Directly Observed Therapy alone",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Video Directly Observed Therapy plus Financial Incentives",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 399,
      "start_date": "2022-02-07",
      "completion_date": "2027-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05022862"
    },
    {
      "nct_id": "NCT01848353",
      "title": "Financial Incentives to Exercise for Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insulin Resistance",
        "Obesity",
        "Sedentary Lifestyle"
      ],
      "interventions": [
        {
          "name": "Exercise training",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "11 Years to 20 Years"
      },
      "enrollment_count": 142,
      "start_date": "2013-05",
      "completion_date": "2017-05",
      "has_results": true,
      "last_update_posted_date": "2019-04-03",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 2,
      "location_summary": "Hugo, Oklahoma • Talihina, Oklahoma",
      "locations": [
        {
          "city": "Hugo",
          "state": "Oklahoma"
        },
        {
          "city": "Talihina",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01848353"
    },
    {
      "nct_id": "NCT05703347",
      "title": "Optimizing a Mobile Health Platform for Sleep Promotion and Obesity Prevention in Children",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Insufficient Sleep",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Fixed sleep goal",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Personalized sleep goal",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Digital sleep health messaging without virtual study visit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Digital sleep health messaging with virtual study visit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Inactive Parent-Directed Loss-Framed Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Active Parent-Directed Loss-Framed Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Inactive Supportive Feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Active Supportive Feedback",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "8 Years to 12 Years"
      },
      "enrollment_count": 5000,
      "start_date": "2023-09-21",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-05-27",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05703347"
    },
    {
      "nct_id": "NCT02159092",
      "title": "The Role of Contingency Management in Waterpipe Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Waterpipe Smoking"
      ],
      "interventions": [
        {
          "name": "Contingency Management",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Washington State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 39,
      "start_date": "2014-07",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2015-12-14",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 1,
      "location_summary": "Spokane, Washington",
      "locations": [
        {
          "city": "Spokane",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02159092"
    },
    {
      "nct_id": "NCT05194228",
      "title": "Exemplar: Determining the Best Practices for EMA Studies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ecological Momentary Assessment Best Practices"
      ],
      "interventions": [
        {
          "name": "Ecologial Momentary Assessment settings",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 416,
      "start_date": "2021-11-30",
      "completion_date": "2022-10-26",
      "has_results": false,
      "last_update_posted_date": "2023-01-10",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05194228"
    },
    {
      "nct_id": "NCT01704560",
      "title": "Improving Measurement Of Parents' Understanding Of Research Permission",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Improve Parent Understanding of Research Permission"
      ],
      "interventions": [
        {
          "name": "Coversheet to Informed Consent",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 32,
      "start_date": "2012-03-30",
      "completion_date": "2019-04-30",
      "has_results": false,
      "last_update_posted_date": "2019-07-08",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 2,
      "location_summary": "Buffalo, New York • Rochester, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01704560"
    },
    {
      "nct_id": "NCT04445662",
      "title": "Financial Incentives for Homeless Smokers: A Community-based RCT",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Financial incentives",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Tobacco coaching",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 184,
      "start_date": "2021-06-10",
      "completion_date": "2024-10-24",
      "has_results": true,
      "last_update_posted_date": "2025-10-21",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04445662"
    },
    {
      "nct_id": "NCT05559892",
      "title": "Conditional Cash Transfer Intervention to Improve T2DM",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes"
      ],
      "interventions": [
        {
          "name": "DM-CCT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "DM-UCT",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "State University of New York at Buffalo",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2022-11-01",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2025-10-01",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05559892"
    },
    {
      "nct_id": "NCT04982952",
      "title": "Contingency Management for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Smoking, Tobacco",
        "Smoking Reduction"
      ],
      "interventions": [
        {
          "name": "Contingency Management - Increasing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fixed payments",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 83,
      "start_date": "2021-11-09",
      "completion_date": "2024-06-30",
      "has_results": false,
      "last_update_posted_date": "2024-12-05",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 2,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04982952"
    },
    {
      "nct_id": "NCT07560813",
      "title": "NOURISH - A Healthcare-community Partnership to Improve Nutrition for Optimal Glycemic Control and Pregnancy Outcomes With Pregestational Diabetes",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes",
        "Type 1 Diabetes",
        "Pregnancy, High Risk"
      ],
      "interventions": [
        {
          "name": "Mid-Ohio Food Farmacy (MOF+) produce delivery",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Nutrition education with Dining with Diabetes (DWD)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Health Impact Ohio Central Ohio Pathways Hub to address unmet social needs",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 174,
      "start_date": "2026-07-06",
      "completion_date": "2030-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-09-06T01:52:24.459Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07560813"
    }
  ]
}