{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Immunization&page=2",
    "query": {
      "condition": "Immunization",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Immunization&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T15:32:20.635Z",
  "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": "NCT00382980",
      "title": "Dose-Escalating Trial Using Vero Cell-culture Derived H5N1 +/- Aluminum in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Aluminum hydroxide",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Inactivated Vero cell based whole virus influenza A/H5N1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 308,
      "start_date": "2006-10",
      "completion_date": "2007-09",
      "has_results": false,
      "last_update_posted_date": "2010-08-27",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 5,
      "location_summary": "Stanford, California • Torrance, California • Baltimore, Maryland + 2 more",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00382980"
    },
    {
      "nct_id": "NCT04638010",
      "title": "Increasing Breast, Cervical, and Colorectal Cancer Screening and HPV Vaccination Among Underserved Texans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer Prevention"
      ],
      "interventions": [
        {
          "name": "Cancer control navigation (CNN)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "General referral (usual care)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1554,
      "start_date": "2011-02-16",
      "completion_date": "2013-12-06",
      "has_results": false,
      "last_update_posted_date": "2020-11-20",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04638010"
    },
    {
      "nct_id": "NCT07412743",
      "title": "Multilevel Peer-to-Peer HPV Vaccination and Wellness Educational Program in School Based Health Centers",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "School Health Services"
      ],
      "interventions": [
        {
          "name": "Mailers",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Provider Materials",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Peer-to-Peer Educational Sessions",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "9 Years to 18 Years"
      },
      "enrollment_count": 4000,
      "start_date": "2026-01-12",
      "completion_date": "2029-06",
      "has_results": false,
      "last_update_posted_date": "2026-05-01",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07412743"
    },
    {
      "nct_id": "NCT07002060",
      "title": "Phase 3 Randomized, Modified Double-blind, Active-controlled Safety Study on vYF in Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Yellow Fever Immunization"
      ],
      "interventions": [
        {
          "name": "Yellow fever vaccine (live)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "YF vaccine (live)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "18 Years to 59 Years"
      },
      "enrollment_count": 640,
      "start_date": "2025-05-22",
      "completion_date": "2026-01-20",
      "has_results": false,
      "last_update_posted_date": "2026-02-02",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 7,
      "location_summary": "Decatur, Georgia • New Orleans, Louisiana • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "Decatur",
          "state": "Georgia"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07002060"
    },
    {
      "nct_id": "NCT01431079",
      "title": "A Health Belief Model Based Intervention to Increase Human Papilloma Virus (HPV) Vaccination Among College Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HPV Vaccine Acceptability"
      ],
      "interventions": [
        {
          "name": "HPV vaccine acceptability",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "MALE",
        "summary": "18 Years to 25 Years · Male only"
      },
      "enrollment_count": 90,
      "start_date": "2011-09",
      "completion_date": "2012-08",
      "has_results": true,
      "last_update_posted_date": "2013-02-04",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01431079"
    },
    {
      "nct_id": "NCT04706403",
      "title": "Views on COVID-19 and Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Communication from a physician about the COVID-19 Vaccine",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 756,
      "start_date": "2021-01-12",
      "completion_date": "2021-02-01",
      "has_results": true,
      "last_update_posted_date": "2022-05-24",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04706403"
    },
    {
      "nct_id": "NCT04901546",
      "title": "Esophageal Atresia: a Natural Experiment of the Effects of Oral Inoculation on the Gut Microbiome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Esophageal Atresia"
      ],
      "interventions": [
        {
          "name": "Patient's own saliva",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "3 Months",
        "sex": "ALL",
        "summary": "Up to 3 Months"
      },
      "enrollment_count": 52,
      "start_date": "2021-05-15",
      "completion_date": "2022-04-08",
      "has_results": false,
      "last_update_posted_date": "2023-04-13",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04901546"
    },
    {
      "nct_id": "NCT03835975",
      "title": "Trial to Evaluate the Safety and Immunogenicity of a 20-Valent Pneumococcal Vaccine in Adults 65 Years of Age or Older With Prior Pneumococcal Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pneumococcal Disease"
      ],
      "interventions": [
        {
          "name": "13vPnC",
          "type": "BIOLOGICAL"
        },
        {
          "name": "PPSV23",
          "type": "BIOLOGICAL"
        },
        {
          "name": "20vPnC",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 875,
      "start_date": "2019-02-12",
      "completion_date": "2020-02-12",
      "has_results": true,
      "last_update_posted_date": "2021-02-21",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 34,
      "location_summary": "Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 26 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03835975"
    },
    {
      "nct_id": "NCT01852656",
      "title": "Effectiveness of Influenza Vaccine Reminder Systems",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma",
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Postcard and IVR Reminder Group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Postcard Only Reminder Group",
          "type": "BEHAVIORAL"
        },
        {
          "name": "IVR Only Reminder Group",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "19 Years to 64 Years"
      },
      "enrollment_count": 12255,
      "start_date": "2012-09",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2013-05-14",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01852656"
    },
    {
      "nct_id": "NCT00751777",
      "title": "Traveler's Diarrhea (TD) Automated Process",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prevention of Travelers' Diarrhea"
      ],
      "interventions": [
        {
          "name": "heat-labile enterotoxin of E. coli (LT)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Intercell USA, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 120,
      "start_date": "2008-09",
      "completion_date": "2009-11",
      "has_results": true,
      "last_update_posted_date": "2020-01-29",
      "last_synced_at": "2026-06-10T15:32:20.635Z",
      "location_count": 3,
      "location_summary": "Vallejo, California • South Miami, Florida • San Antonio, Texas",
      "locations": [
        {
          "city": "Vallejo",
          "state": "California"
        },
        {
          "city": "South Miami",
          "state": "Florida"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00751777"
    }
  ]
}