{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+vaccine&page=16",
    "query": {
      "intervention": "COVID-19 vaccine",
      "page": 16
    },
    "page_size": 10
  },
  "pagination": {
    "page": 16,
    "page_size": 10,
    "total_count": 405,
    "total_pages": 41,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+vaccine&page=17&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+vaccine&page=15&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-15T15:51:03.813Z",
  "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": "NCT07838038",
      "title": "Effect of Messaging on Pragmatic Outcomes Within an Integrated Healthcare System",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid-19 Vaccination"
      ],
      "interventions": [
        {
          "name": "Vaccine choice message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Vaccine choice + platform-framed message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Vaccine choice + HCP trust-framed message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Vaccine choice + reactogenicity-framed message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1300000,
      "start_date": "2026-09-29",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-10-15",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 1,
      "location_summary": "Pasadena, California",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07838038"
    },
    {
      "nct_id": "NCT06864143",
      "title": "A Study to Investigate the Immunogenicity, Reactogenicity, and Safety of mRNA-1083 (Influenza and COVID-19) Vaccine in Adults ≥18 to <65 Years of Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza",
        "SARS-CoV-2"
      ],
      "interventions": [
        {
          "name": "mRNA-1083 Composition 1 Dose A Lot A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1083 Composition 1 Dose A Lot B",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1083 Composition 1 Dose B",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1083 Composition 1 Dose C",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1083 Composition 2 Dose A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1083 Composition 2 Dose B",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1083 Composition 3 Dose A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1083 Composition 3 Dose B",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational COVID-19 Vaccine Lot A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational COVID-19 Vaccine Lot B",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ModernaTX, 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": 1320,
      "start_date": "2025-03-07",
      "completion_date": "2025-10-13",
      "has_results": false,
      "last_update_posted_date": "2025-10-20",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 17,
      "location_summary": "Scottsdale, Arizona • San Diego, California • Stockbridge, Georgia + 13 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Stockbridge",
          "state": "Georgia"
        },
        {
          "city": "Meridian",
          "state": "Idaho"
        },
        {
          "city": "Melrose Park",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06864143"
    },
    {
      "nct_id": "NCT06409663",
      "title": "A Strain Change Study for SARS-CoV-2 rS Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Severe Acute Respiratory Syndrome Coronavirus 2 Infection"
      ],
      "interventions": [
        {
          "name": "NVX-CoV2705 Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novavax",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 60,
      "start_date": "2024-10-14",
      "completion_date": "2025-04-17",
      "has_results": false,
      "last_update_posted_date": "2025-07-18",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 2,
      "location_summary": "Phoenix, Arizona • Austin, Texas",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06409663"
    },
    {
      "nct_id": "NCT06141850",
      "title": "Promoting Engagement and COVID-19 Testing for Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "COVID-19 Test Reporting",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Personalized Nudges via Text Messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Non-personalized Nudges via Text Messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 290,
      "start_date": "2023-12-06",
      "completion_date": "2025-03-25",
      "has_results": true,
      "last_update_posted_date": "2026-02-23",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06141850"
    },
    {
      "nct_id": "NCT04852289",
      "title": "A Clinical Observational Study of SARS-CoV-2 Specific CD8 T-Cell Responses to COVID-19 Vaccines in Humans",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Institute on Aging (NIA)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 78,
      "start_date": "2021-04-20",
      "completion_date": "2027-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-09",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04852289"
    },
    {
      "nct_id": "NCT07863635",
      "title": "A Study to Investigate the Immunogenicity and Safety of mRNA COVID-19 Variant-containing Formulations",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "SARS-CoV-2"
      ],
      "interventions": [
        {
          "name": "mRNA-1273",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1283",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ModernaTX, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2026-10-09",
      "completion_date": "2027-01-09",
      "has_results": false,
      "last_update_posted_date": "2026-10-07",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 5,
      "location_summary": "Overland Park, Kansas • Louisville, Kentucky • Charlotte, North Carolina + 2 more",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        },
        {
          "city": "Hendersonville",
          "state": "Tennessee"
        },
        {
          "city": "Prosper",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07863635"
    },
    {
      "nct_id": "NCT04505774",
      "title": "Accelerating COVID-19 Therapeutic Interventions and Vaccines 4 ACUTE",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "theraputic heparin",
          "type": "DRUG"
        },
        {
          "name": "prophylactic heparin",
          "type": "DRUG"
        },
        {
          "name": "P2Y12",
          "type": "DRUG"
        },
        {
          "name": "Crizanlizumab Injection",
          "type": "DRUG"
        },
        {
          "name": "SGLT2 inhibitor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Matthew Neal MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3591,
      "start_date": "2020-09-04",
      "completion_date": "2024-01-26",
      "has_results": true,
      "last_update_posted_date": "2024-12-30",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 81,
      "location_summary": "Birmingham, Alabama • Tucson, Arizona • Little Rock, Arkansas + 65 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fontana",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04505774"
    },
    {
      "nct_id": "NCT05182567",
      "title": "GLS-5310 Vaccine in Healthy Volunteers as a Booster for SARS-CoV-2 (COVID-19)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID-19",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "GLS-5310 (Group 1)",
          "type": "DRUG"
        },
        {
          "name": "GLS-5310 (Group 2)",
          "type": "DRUG"
        },
        {
          "name": "GLS-5310 (Group 3)",
          "type": "DRUG"
        },
        {
          "name": "GLS-5310 (Group 4)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GeneOne Life Science, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 69,
      "start_date": "2022-05-23",
      "completion_date": "2023-12",
      "has_results": false,
      "last_update_posted_date": "2023-09-13",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 2,
      "location_summary": "Rockville, Maryland • Lincoln, Nebraska",
      "locations": [
        {
          "city": "Rockville",
          "state": "Maryland"
        },
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05182567"
    },
    {
      "nct_id": "NCT04936997",
      "title": "Immune Response to the COVID-19 Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Covid19",
        "Cancer",
        "Malignancy",
        "Vaccine Response Impaired"
      ],
      "interventions": [
        {
          "name": "SARS-COV2 Pfizer Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2021-06-07",
      "completion_date": "2022-05-08",
      "has_results": false,
      "last_update_posted_date": "2022-05-20",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04936997"
    },
    {
      "nct_id": "NCT01808820",
      "title": "Dendritic Cell (DC) Vaccine for Malignant Glioma and Glioblastoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Malignant Glioma",
        "Glioblastoma Multiforme",
        "Anaplastic Astrocytoma",
        "High Grade Glioma"
      ],
      "interventions": [
        {
          "name": "Dendritic Cell Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tumor Lysate",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Imiquimod",
          "type": "DRUG"
        },
        {
          "name": "Leukapheresis",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Macarena De La Fuente, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "13 Years to 99 Years"
      },
      "enrollment_count": 20,
      "start_date": "2013-08-21",
      "completion_date": "2022-07-16",
      "has_results": false,
      "last_update_posted_date": "2022-07-20",
      "last_synced_at": "2026-10-15T15:51:03.813Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01808820"
    }
  ]
}