{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Immunization+Rates",
    "query": {
      "condition": "Immunization Rates"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 41,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Immunization+Rates&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T09:22:26.756Z",
  "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": "NCT01984125",
      "title": "Testing the Use of Prompts to Increase Adolescent Immunization Rates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Preventable Diseases",
        "Meningococcal Disease",
        "Human Papillomavirus",
        "Pertussis",
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Point-of-Care Prompt",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "11 Years to 18 Years"
      },
      "enrollment_count": 7040,
      "start_date": "2011-04",
      "completion_date": "2013-12",
      "has_results": false,
      "last_update_posted_date": "2017-05-02",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 22,
      "location_summary": "Little Rock, Arkansas • Wilmington, Delaware • Gainesville, Florida + 12 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Wilmington",
          "state": "Delaware"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01984125"
    },
    {
      "nct_id": "NCT00941889",
      "title": "The Effect of HPV Vaccination on Recurrence Rates in HIV Patients With Condylomata",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Positive",
        "Anal Condylomata",
        "Anal Warts",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Saline",
          "type": "DRUG"
        },
        {
          "name": "Quadrivalent Human Papillomavirus (Types 6,11,16,18) Recombinant Vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2007-07",
      "completion_date": "2011-07",
      "has_results": true,
      "last_update_posted_date": "2016-07-25",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00941889"
    },
    {
      "nct_id": "NCT01248520",
      "title": "Influenza and Text Messaging in Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "influenza and general health information",
          "type": "OTHER"
        },
        {
          "name": "general health information",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "14 Years to 50 Years · Female only"
      },
      "enrollment_count": 216,
      "start_date": "2010-09",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2018-12-13",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01248520"
    },
    {
      "nct_id": "NCT07372950",
      "title": "Kaiser Colorado Flu Nudge",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Vaccination"
      ],
      "interventions": [
        {
          "name": "Behavioral economics framed test messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Months and older"
      },
      "enrollment_count": 100000,
      "start_date": "2025-10-06",
      "completion_date": "2026-09-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07372950"
    },
    {
      "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": "2026-06-11T09:22:26.756Z",
      "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": "NCT03604393",
      "title": "Increasing HPV Immunization Rates: The Rural Adolescent Vaccine Enterprise",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papilloma Virus"
      ],
      "interventions": [
        {
          "name": "Practice facilitation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 22000,
      "start_date": "2019-06-01",
      "completion_date": "2023-06",
      "has_results": false,
      "last_update_posted_date": "2022-03-31",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03604393"
    },
    {
      "nct_id": "NCT03801603",
      "title": "Improving HPV Vaccination Rates Among Rural and Native American Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HPV Vaccinations"
      ],
      "interventions": [
        {
          "name": "HPV vaccination training and education",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "11 Years to 17 Years"
      },
      "enrollment_count": 263,
      "start_date": "2018-11-30",
      "completion_date": "2020-06-30",
      "has_results": false,
      "last_update_posted_date": "2021-03-17",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03801603"
    },
    {
      "nct_id": "NCT01224301",
      "title": "School Influenza Vaccine vs Standard of Care With Nested Trial of 2 Parent Notification Intensities",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Immunizations",
        "Vaccination",
        "Influenza",
        "School Health"
      ],
      "interventions": [
        {
          "name": "School based flu vaccine: Low intensity",
          "type": "BEHAVIORAL"
        },
        {
          "name": "School based flu vaccine: High intensity",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Monroe County Department of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "13 Years",
        "sex": "ALL",
        "summary": "4 Years to 13 Years"
      },
      "enrollment_count": 25366,
      "start_date": "2009-09",
      "completion_date": "2011-01",
      "has_results": false,
      "last_update_posted_date": "2012-04-04",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01224301"
    },
    {
      "nct_id": "NCT01622608",
      "title": "Adolescent Vaccination Kiosk Project",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adolescent Vaccination Status"
      ],
      "interventions": [
        {
          "name": "Vaccine Information Kiosk",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2012-08",
      "completion_date": "2013-09",
      "has_results": false,
      "last_update_posted_date": "2013-12-24",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 3,
      "location_summary": "Centennial, Colorado • Thornton, Colorado • Wheat Ridge, Colorado",
      "locations": [
        {
          "city": "Centennial",
          "state": "Colorado"
        },
        {
          "city": "Thornton",
          "state": "Colorado"
        },
        {
          "city": "Wheat Ridge",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01622608"
    },
    {
      "nct_id": "NCT03057379",
      "title": "HPV IIS Reminder/Recall- New York State",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Reminder Systems"
      ],
      "interventions": [
        {
          "name": "Vaccine Reminder Recall",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "11 Years to 17 Years"
      },
      "enrollment_count": 30616,
      "start_date": "2017-02-27",
      "completion_date": "2019-01-17",
      "has_results": false,
      "last_update_posted_date": "2020-04-28",
      "last_synced_at": "2026-06-11T09:22:26.756Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03057379"
    }
  ]
}