{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Vaccine&page=2",
    "query": {
      "condition": "COVID-19 Vaccine",
      "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=COVID-19+Vaccine&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T05:47:22.516Z",
  "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": "NCT04834869",
      "title": "COVID-19 Vaccines Safety Tracking (CoVaST)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adverse Reaction to Vaccine",
        "COVID19 Vaccine"
      ],
      "interventions": [
        {
          "name": "BNT162b2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1273",
          "type": "BIOLOGICAL"
        },
        {
          "name": "AZD1222",
          "type": "BIOLOGICAL"
        },
        {
          "name": "CoronaVac",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sinopharm",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Gam-COVID-Vac",
          "type": "BIOLOGICAL"
        },
        {
          "name": "JNJ-78436735",
          "type": "BIOLOGICAL"
        },
        {
          "name": "CVnCoV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "NVX-CoV2373",
          "type": "BIOLOGICAL"
        },
        {
          "name": "BBV152",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Masaryk University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30000,
      "start_date": "2021-04-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-04-06",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04834869"
    },
    {
      "nct_id": "NCT04944134",
      "title": "COVID-19 Antibody Levels After Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vaccine Preventable Disease"
      ],
      "interventions": [
        {
          "name": "COVID-19 Vaccination",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 71,
      "start_date": "2021-06-09",
      "completion_date": "2022-04-01",
      "has_results": false,
      "last_update_posted_date": "2022-08-01",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04944134"
    },
    {
      "nct_id": "NCT05060991",
      "title": "Impact of Immunosuppression Adjustment on COVID-19 Vaccination Response in Kidney Transplant Recipients",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19",
        "Immunosuppression",
        "Vaccine Response Impaired"
      ],
      "interventions": [
        {
          "name": "Reduction in antimetabolite immunosuppression",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2021-09-24",
      "completion_date": "2026-12-24",
      "has_results": false,
      "last_update_posted_date": "2026-04-03",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05060991"
    },
    {
      "nct_id": "NCT07079670",
      "title": "Safety and Immunogenicity of NVX-CoV2705",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "COVID-19",
        "SARS-CoV-2 Infection"
      ],
      "interventions": [
        {
          "name": "NVX-CoV2705",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "12 Years to 90 Years"
      },
      "enrollment_count": 676,
      "start_date": "2025-10-09",
      "completion_date": "2026-05-11",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 10,
      "location_summary": "Phoenix, Arizona • Melrose Park, Illinois • Lenexa, Kansas + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Melrose Park",
          "state": "Illinois"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Lafayette",
          "state": "Louisiana"
        },
        {
          "city": "Southfield",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07079670"
    },
    {
      "nct_id": "NCT04336410",
      "title": "Safety, Tolerability and Immunogenicity of INO-4800 for COVID-19 in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Coronavirus Infection"
      ],
      "interventions": [
        {
          "name": "INO-4800",
          "type": "DRUG"
        },
        {
          "name": "CELLECTRA® 2000",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Inovio Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2020-04-03",
      "completion_date": "2022-02-10",
      "has_results": false,
      "last_update_posted_date": "2022-04-15",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 3,
      "location_summary": "Lexington, Kentucky • Kansas City, Missouri • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04336410"
    },
    {
      "nct_id": "NCT04977024",
      "title": "SARS-CoV-2 Vaccine (GEO-CM04S1) Versus mRNA SARS-COV-2 Vaccine in Patients With Blood Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19 Infection",
        "Hematopoietic and Lymphoid System Neoplasm",
        "Leukemia",
        "Lymphoma",
        "Plasma Cell Myeloma"
      ],
      "interventions": [
        {
          "name": "COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Diagnostic Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Synthetic MVA-based SARS-CoV-2 Vaccine GEO-CM04S1",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "GeoVax, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 63,
      "start_date": "2021-09-27",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-11",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 6,
      "location_summary": "Duarte, California • Baltimore, Maryland • Worcester, Massachusetts + 3 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Stony Brook",
          "state": "New York"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04977024"
    },
    {
      "nct_id": "NCT04843774",
      "title": "Vaccine-generated Immunity in Ocrelizumab-treated Patients: Longitudinal Assessments (VIOLA)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "SARS-COV-2 mRNA Vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 64,
      "start_date": "2021-04-20",
      "completion_date": "2023-04-18",
      "has_results": false,
      "last_update_posted_date": "2023-11-08",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 2,
      "location_summary": "Denver, Colorado • New York, New York",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04843774"
    },
    {
      "nct_id": "NCT04636697",
      "title": "Study of a Recombinant Coronavirus-Like Particle COVID-19 Vaccine in Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "SARS-CoV-2 Infection"
      ],
      "interventions": [
        {
          "name": "Intramuscular injection",
          "type": "DRUG"
        },
        {
          "name": "Intramuscular vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Medicago",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30918,
      "start_date": "2020-11-19",
      "completion_date": "2022-04-30",
      "has_results": false,
      "last_update_posted_date": "2022-04-06",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 45,
      "location_summary": "Birmingham, Alabama • Tempe, Arizona • Canoga Park, California + 39 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04636697"
    },
    {
      "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": "2026-06-11T05:47:22.516Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04936997"
    },
    {
      "nct_id": "NCT07069309",
      "title": "A Study to Learn About COVID-19 RNA-Based Variant-Adapted Vaccine Candidate(s) Against SARS-CoV-2 in Participants Ages 12 Through 64 Years Considered at Higher Risk of Severe COVID-19, and Participants Ages ≥65 Years",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "COVID-19",
        "SARS-COV-2 Infection"
      ],
      "interventions": [
        {
          "name": "BNT162b2 (2025/2026 recommended SARS-CoV-2 strain)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "BioNTech SE",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 774,
      "start_date": "2025-07-08",
      "completion_date": "2026-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-06-11T05:47:22.516Z",
      "location_count": 19,
      "location_summary": "Walnut Creek, California • Milford, Connecticut • Washington D.C., District of Columbia + 13 more",
      "locations": [
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Milford",
          "state": "Connecticut"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07069309"
    }
  ]
}