{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Immunization&page=20",
    "query": {
      "condition": "Immunization",
      "page": 20
    },
    "page_size": 10
  },
  "pagination": {
    "page": 20,
    "page_size": 10,
    "total_count": 1351,
    "total_pages": 136,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Immunization&page=21&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Immunization&page=19&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-22T04:55:44.293Z",
  "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": "NCT02897232",
      "title": "Community and Physician Perspectives Regarding Male Youth Human Papillomavirus (HPV) Disease and Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Papillomavirus Infections",
        "Health Behavior",
        "Attitude of Health Personnel",
        "Human Papilloma Virus, Male"
      ],
      "interventions": [
        {
          "name": "Survey",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Louisiana State University Health Sciences Center Shreveport",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 386,
      "start_date": "2016-07",
      "completion_date": "2020-04",
      "has_results": false,
      "last_update_posted_date": "2021-02-10",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 1,
      "location_summary": "Shreveport, Louisiana",
      "locations": [
        {
          "city": "Shreveport",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02897232"
    },
    {
      "nct_id": "NCT06799494",
      "title": "HPV Vaccine Reduced Dose",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HPV"
      ],
      "interventions": [
        {
          "name": "Gardasil-9",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Lidocaine injection",
          "type": "DRUG"
        },
        {
          "name": "Lorazepam",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 100,
      "start_date": "2025-08-06",
      "completion_date": "2028-09",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 1,
      "location_summary": "Decatur, Georgia",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06799494"
    },
    {
      "nct_id": "NCT00025922",
      "title": "Influenza Vaccine in HIV Infection: Immune Response and Effect on Viral Load",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 240,
      "start_date": "2001-10",
      "completion_date": "2003-10",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00025922"
    },
    {
      "nct_id": "NCT01254669",
      "title": "An Intervention Study To Improve Human PapillomaVirus ( HPV) Immunization in Haitian and African American Girls",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cervical Cancer"
      ],
      "interventions": [
        {
          "name": "BNI-brief Negotiated Interview",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Boston Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "15 Years",
        "sex": "FEMALE",
        "summary": "11 Years to 15 Years · Female only"
      },
      "enrollment_count": 200,
      "start_date": "2011-01",
      "completion_date": "2014-03",
      "has_results": true,
      "last_update_posted_date": "2017-05-19",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01254669"
    },
    {
      "nct_id": "NCT03738241",
      "title": "2017 A/H7N9 IIV Revaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Avian Influenza",
        "Influenza Immunisation"
      ],
      "interventions": [
        {
          "name": "A/H7N9",
          "type": "BIOLOGICAL"
        },
        {
          "name": "AS03",
          "type": "DRUG"
        },
        {
          "name": "Phosphate Buffered Saline (PBS) diluent",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "19 Years to 70 Years"
      },
      "enrollment_count": 304,
      "start_date": "2018-12-18",
      "completion_date": "2020-06-19",
      "has_results": true,
      "last_update_posted_date": "2021-07-30",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 9,
      "location_summary": "Atlanta, Georgia • Iowa City, Iowa • Baltimore, Maryland + 6 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03738241"
    },
    {
      "nct_id": "NCT06057727",
      "title": "Behavioral Economics to Improve Flu Vaccination Using EHR Nudges",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Behavior, Health",
        "Flu",
        "Flu Vaccination"
      ],
      "interventions": [
        {
          "name": "Pre-visit patient text messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Default pended order",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Monthly peer comparison feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High risk bidirectional pre-visit text messaging",
          "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": 80039,
      "start_date": "2023-09-25",
      "completion_date": "2024-05-20",
      "has_results": true,
      "last_update_posted_date": "2025-04-27",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania • Seattle, Washington",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06057727"
    },
    {
      "nct_id": "NCT00020670",
      "title": "Vaccine Therapy in Treating Patients With Acute Lymphoblastic Leukemia",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Leukemia"
      ],
      "interventions": [
        {
          "name": "CD 40",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 9,
      "start_date": "2001-02-20",
      "completion_date": "2003-07-01",
      "has_results": false,
      "last_update_posted_date": "2017-06-20",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00020670"
    },
    {
      "nct_id": "NCT00000827",
      "title": "A Phase I/II Study of Hyperimmune IVIG in Slowing Progression of Disease in HIV-Infected Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Anti-HIV Immune Serum Globulin (Human)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "2 Years to 12 Years"
      },
      "enrollment_count": 45,
      "start_date": null,
      "completion_date": "1998-04",
      "has_results": false,
      "last_update_posted_date": "2021-11-04",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 37,
      "location_summary": "Birmingham, Alabama • Long Beach, California • Los Angeles, California + 26 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000827"
    },
    {
      "nct_id": "NCT04295694",
      "title": "Effect of Infant Immunization on Procalcitonin Levels - A Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immunization"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "CAMC Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "8 Weeks",
        "maximum_age": "28 Weeks",
        "sex": "ALL",
        "summary": "8 Weeks to 28 Weeks"
      },
      "enrollment_count": 13,
      "start_date": "2014-08",
      "completion_date": "2017-06-21",
      "has_results": false,
      "last_update_posted_date": "2020-03-04",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 1,
      "location_summary": "Charleston, West Virginia",
      "locations": [
        {
          "city": "Charleston",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04295694"
    },
    {
      "nct_id": "NCT06074237",
      "title": "Improving Vaccine Counseling Skills Among Residents Using Educational Modules and Standardized Patient Encounters",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Refusal",
        "Vaccine-Preventable Diseases",
        "Physician-Patient Relations"
      ],
      "interventions": [
        {
          "name": "Immersive resident education",
          "type": "OTHER"
        },
        {
          "name": "Standardized patient (SP) encounter",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Corewell Health East",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 112,
      "start_date": "2024-04-25",
      "completion_date": "2025-06-27",
      "has_results": false,
      "last_update_posted_date": "2026-01-22",
      "last_synced_at": "2026-10-22T04:55:44.293Z",
      "location_count": 1,
      "location_summary": "Royal Oak, Michigan",
      "locations": [
        {
          "city": "Royal Oak",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06074237"
    }
  ]
}