{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Impact+of+Vaccination",
    "query": {
      "condition": "Impact of Vaccination"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 31,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Impact+of+Vaccination&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-22T18:49:42.349Z",
  "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": "NCT03442062",
      "title": "Quality Improvement Strategies to Increase Human Papillomavirus (HPV) Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papillomavirus Infection"
      ],
      "interventions": [
        {
          "name": "Assessment Feedback Incentives and eXchange",
          "type": "OTHER"
        },
        {
          "name": "Physician-to-physician engagement",
          "type": "OTHER"
        },
        {
          "name": "Active Intervention Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 264,
      "start_date": "2018-05-07",
      "completion_date": "2020-04-30",
      "has_results": false,
      "last_update_posted_date": "2020-05-11",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 3,
      "location_summary": "Phoenix, Arizona • Albany, New York • Madison, Wisconsin",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Albany",
          "state": "New York"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03442062"
    },
    {
      "nct_id": "NCT00808808",
      "title": "Assessing Choice in the Employer Setting (ACES) Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Choice of TIV or FluMist with baseline advertisement",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Choice of TIV or FluMist with enhanced advertisement and incentives",
          "type": "OTHER"
        },
        {
          "name": "Control - Usual care offering TIV only with baseline advertisement",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "MedImmune LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4411,
      "start_date": "2008-09",
      "completion_date": "2008-12",
      "has_results": true,
      "last_update_posted_date": "2013-11-20",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 47,
      "location_summary": "Chatsworth, California • Novato, California • Sacramento, California + 34 more",
      "locations": [
        {
          "city": "Chatsworth",
          "state": "California"
        },
        {
          "city": "Novato",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00808808"
    },
    {
      "nct_id": "NCT06156254",
      "title": "Community Care Intervention to Decrease COVID-19 Vaccination Inequities",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19 Vaccination"
      ],
      "interventions": [
        {
          "name": "Community Health Worker Intervention to Enhance Vaccination Behavior (CHW-VB)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "RAND",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 800,
      "start_date": "2023-09-21",
      "completion_date": "2026-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 4,
      "location_summary": "Brooklyn, New York • New York, New York • The Bronx, New York",
      "locations": [
        {
          "city": "Brooklyn",
          "state": "New York"
        },
        {
          "city": "Brooklyn",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06156254"
    },
    {
      "nct_id": "NCT07171164",
      "title": "A Study to Evaluate Community-Based Measures to Increase RSV Vaccine Use Among Latino Adults",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Older Adults Without Any Specific Clinical Condition",
        "Social Networks",
        "RSV Immunization",
        "Vaccine Uptake"
      ],
      "interventions": [
        {
          "name": "Motivate Aim: CHW text message reminders and counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Motivate Aim: CHW text message reminders only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Activate Aim: CHW text message reminders and counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Activate Aim: CHW text message reminders only",
          "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": 750,
      "start_date": "2025-09-10",
      "completion_date": "2028-11",
      "has_results": false,
      "last_update_posted_date": "2025-09-30",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07171164"
    },
    {
      "nct_id": "NCT02687763",
      "title": "Safety and Efficacy of ProQuad® in Children 6-24 Month Being Evaluated for Solid Organ Transplant",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "RENAL INSUFFICIENCY, CHRONIC",
        "LIVER FAILURE, ACUTE",
        "HEART DISEASE"
      ],
      "interventions": [
        {
          "name": "ProQuad",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "24 Months",
        "sex": "ALL",
        "summary": "6 Months to 24 Months"
      },
      "enrollment_count": 5,
      "start_date": "2015-12",
      "completion_date": "2016-11-03",
      "has_results": false,
      "last_update_posted_date": "2019-02-12",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02687763"
    },
    {
      "nct_id": "NCT05148559",
      "title": "Impact of Adolescent Vaccine Reminder Notices Sent Via Preferred Method of Communication on HPV Vaccination",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Papillomavirus Vaccines"
      ],
      "interventions": [
        {
          "name": "Reminder Sent Via Preferred Method of Communication",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reminder Sent Via Mailed Letter",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Huong Nguyen, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "12 Years to 12 Years"
      },
      "enrollment_count": 5451,
      "start_date": "2021-08-12",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-11-21",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 1,
      "location_summary": "Marshfield, Wisconsin",
      "locations": [
        {
          "city": "Marshfield",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05148559"
    },
    {
      "nct_id": "NCT01944462",
      "title": "Impact and Cost of a Pharmacist Pneumococcal Vaccination Program With PNEUMOVAX® 23 at an Urban Senior Center",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Study is Open to Seniors Age 50 or Older"
      ],
      "interventions": [
        {
          "name": "Pharmacist Pneumococcal Vaccine Program (PPVP)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 203,
      "start_date": "2014-01",
      "completion_date": "2014-11",
      "has_results": true,
      "last_update_posted_date": "2018-01-03",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01944462"
    },
    {
      "nct_id": "NCT00469274",
      "title": "Vanderbilt Pertussis Exposure Study: PEP in Vaccinated Healthcare Workers Following Pertussis Exposure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pertussis"
      ],
      "interventions": [
        {
          "name": "Antibiotic PEP",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 1102,
      "start_date": "2007-05",
      "completion_date": "2009-12",
      "has_results": true,
      "last_update_posted_date": "2013-01-29",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00469274"
    },
    {
      "nct_id": "NCT01526551",
      "title": "A Study to Compare the Impact of a School Based HPV Program on Vaccination Uptake and Completion Rates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papillomavirus"
      ],
      "interventions": [
        {
          "name": "HPV Vaccine and HPV-related Health Education",
          "type": "OTHER"
        },
        {
          "name": "Reduction of barriers",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Lake Cumberland District Health Department",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "12 Years to 20 Years"
      },
      "enrollment_count": 935,
      "start_date": "2012-08",
      "completion_date": "2013-08",
      "has_results": true,
      "last_update_posted_date": "2015-03-06",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 2,
      "location_summary": "Monticello, Kentucky",
      "locations": [
        {
          "city": "Monticello",
          "state": "Kentucky"
        },
        {
          "city": "Monticello",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01526551"
    },
    {
      "nct_id": "NCT04930965",
      "title": "Impact of LA-CEAL HALT COVID-19 Ambassador Program on Likelihood to Vaccinate",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19",
        "Vaccine Refusal"
      ],
      "interventions": [
        {
          "name": "Community health worker engagement",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Tulane University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 56,
      "start_date": "2021-10-05",
      "completion_date": "2023-02-28",
      "has_results": true,
      "last_update_posted_date": "2024-01-18",
      "last_synced_at": "2026-07-22T18:49:42.349Z",
      "location_count": 1,
      "location_summary": "New Orleans, Louisiana",
      "locations": [
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04930965"
    }
  ]
}