{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Incentive+for+Vaccination",
    "query": {
      "intervention": "Incentive for Vaccination"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Incentive+for+Vaccination&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T16:26:12.622Z",
  "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": "NCT05648773",
      "title": "COVID-19 Booster Incentives",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Booster Message",
        "Booster Message + Financial Incentive"
      ],
      "interventions": [
        {
          "name": "Messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Financial Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 57893,
      "start_date": "2022-12-08",
      "completion_date": "2022-12-23",
      "has_results": false,
      "last_update_posted_date": "2023-08-14",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "Martinez, California",
      "locations": [
        {
          "city": "Martinez",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05648773"
    },
    {
      "nct_id": "NCT05012163",
      "title": "Lottery Incentive Nudges to Increase Influenza Vaccinations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Vaccination",
        "Health Promotion",
        "Health Behavior"
      ],
      "interventions": [
        {
          "name": "Reminder",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Financial incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Lottery",
          "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": 57581,
      "start_date": "2021-09-04",
      "completion_date": "2022-12-31",
      "has_results": true,
      "last_update_posted_date": "2024-12-30",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05012163"
    },
    {
      "nct_id": "NCT01787838",
      "title": "Improving Pneumococcal Vaccination Rates in an Ambulatory Pre-surgical Testing Setting",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Community Acquired Pneumonia"
      ],
      "interventions": [
        {
          "name": "Focused Health Education",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Carilion Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "110 Years",
        "sex": "ALL",
        "summary": "18 Years to 110 Years"
      },
      "enrollment_count": 2509,
      "start_date": "2013-01",
      "completion_date": "2014-01",
      "has_results": true,
      "last_update_posted_date": "2017-07-19",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "Roanoke, Virginia",
      "locations": [
        {
          "city": "Roanoke",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01787838"
    },
    {
      "nct_id": "NCT05534061",
      "title": "Motivation, Syringe Exchange, and COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19 Pandemic"
      ],
      "interventions": [
        {
          "name": "Connect2Test",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oregon",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 349,
      "start_date": "2022-08-08",
      "completion_date": "2023-06-30",
      "has_results": true,
      "last_update_posted_date": "2024-02-28",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "Eugene, Oregon",
      "locations": [
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05534061"
    },
    {
      "nct_id": "NCT03429413",
      "title": "Maximizing HPV Vaccination: Real-time Reminders, Guidance, and Recommendations - Part 4: Feasibility Trial",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papillomavirus (HPV) Vaccines"
      ],
      "interventions": [
        {
          "name": "Protect Me 4 Application + External Quality Improvement Support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Protect Me 4 Application Alone",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "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": 1296,
      "start_date": "2026-09-15",
      "completion_date": "2027-09-15",
      "has_results": false,
      "last_update_posted_date": "2025-08-17",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03429413"
    },
    {
      "nct_id": "NCT05744960",
      "title": "Impact of Financial Incentives",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papilloma Virus"
      ],
      "interventions": [
        {
          "name": "Communication training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "financial Incentive",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "UNC Lineberger Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "9 Years to 12 Years"
      },
      "enrollment_count": 34,
      "start_date": "2023-02-28",
      "completion_date": "2026-08-29",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05744960"
    },
    {
      "nct_id": "NCT03507231",
      "title": "Non-integrated Costs Increase Effectiveness of Incentives",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Control - No Incentive for Flu Vaccine",
        "Direct Incentive",
        "Indirect Incentive"
      ],
      "interventions": [
        {
          "name": "Email Message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Incentive for Vaccination",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Incentive for completing a short survey",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Carnegie Mellon University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 12531,
      "start_date": "2017-09-20",
      "completion_date": "2018-01-20",
      "has_results": false,
      "last_update_posted_date": "2018-04-25",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03507231"
    },
    {
      "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": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04747327"
    },
    {
      "nct_id": "NCT04678271",
      "title": "Assessment, Feedback, Incentive, Exchange (AFIX OB) A Customizable Quality Improvement Intervention to Increase Maternal Vaccine Uptake",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Whooping Cough"
      ],
      "interventions": [
        {
          "name": "AFIX-OB Quality Improvement Package",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 202,
      "start_date": "2021-07-01",
      "completion_date": "2023-01-31",
      "has_results": false,
      "last_update_posted_date": "2023-09-21",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04678271"
    },
    {
      "nct_id": "NCT02898688",
      "title": "P3+ Intervention Phase",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccination"
      ],
      "interventions": [
        {
          "name": "Control Site",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Intervention Site",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient-level Control Group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient-level Intervention Group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 2200,
      "start_date": "2017-06-12",
      "completion_date": "2020-07-06",
      "has_results": false,
      "last_update_posted_date": "2020-08-05",
      "last_synced_at": "2026-09-02T16:26:12.622Z",
      "location_count": 23,
      "location_summary": "Aurora, Colorado • Boulder, Colorado • Denver, Colorado + 12 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02898688"
    }
  ]
}