{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Vaccine",
    "query": {
      "condition": "COVID-19 Vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 317,
    "total_pages": 32,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=COVID-19+Vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-10T16:08:03.754Z",
  "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": "NCT05047640",
      "title": "COVID-19 3rd Dose Vaccine in Transplant Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "BNT162b2 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "JNJ-78436735 Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Giselle Guerra",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 58,
      "start_date": "2021-09-14",
      "completion_date": "2022-10-25",
      "has_results": true,
      "last_update_posted_date": "2024-06-04",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05047640"
    },
    {
      "nct_id": "NCT04977479",
      "title": "The Safety of Administering a Second Dose of a COVID-19 mRNA Vaccine in Individuals Who Experienced a Systemic Allergic Reaction to an Initial Dose",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Systemic Allergic Reaction"
      ],
      "interventions": [
        {
          "name": "Pfizer-BioNTech COVID-19 Vaccine (Comirnaty)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Pfizer-BioNTech COVID-19 Vaccine, Bivalent",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "16 Years to 69 Years"
      },
      "enrollment_count": 20,
      "start_date": "2021-09-08",
      "completion_date": "2023-02-22",
      "has_results": true,
      "last_update_posted_date": "2023-10-16",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04977479"
    },
    {
      "nct_id": "NCT05975060",
      "title": "A Study to Evaluate the Safety and Immunogenicity of an (Omicron Subvariant) COVID-19 Vaccine Booster Dose in Previously Vaccinated Participants and Unvaccinated Participants.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "XBB.1.5 Vaccine (Booster)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "XBB.1.5 Vaccine (single dose)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novavax",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "54 Years",
        "sex": "ALL",
        "summary": "18 Years to 54 Years"
      },
      "enrollment_count": 660,
      "start_date": "2023-09-07",
      "completion_date": "2024-05-20",
      "has_results": false,
      "last_update_posted_date": "2024-05-30",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 30,
      "location_summary": "Mobile, Alabama • Sacramento, California • Colorado Springs, Colorado + 26 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05975060"
    },
    {
      "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": "2026-06-10T16:08:03.754Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04706403"
    },
    {
      "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": "2026-06-10T16:08:03.754Z",
      "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": "NCT05016622",
      "title": "Booster Dose Trial",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "BNT162b2 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Montefiore Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 106,
      "start_date": "2021-08-10",
      "completion_date": "2023-05-21",
      "has_results": true,
      "last_update_posted_date": "2024-07-31",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05016622"
    },
    {
      "nct_id": "NCT05876377",
      "title": "Use and Effectiveness of COVID-19 Vaccines Using State Vaccine Registries and Insurance Claims Data",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS-CoV-2",
        "COVID-19",
        "Post-Acute COVID-19 Syndrome"
      ],
      "interventions": [
        {
          "name": "Pfizer-BioNTech COVID-19 mRNA vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Months and older"
      },
      "enrollment_count": 1,
      "start_date": "2023-10-23",
      "completion_date": "2026-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-13",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05876377"
    },
    {
      "nct_id": "NCT05766189",
      "title": "Wastewater Surveillance to Boost COVID-19 Vaccine Uptake",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccination",
        "Wastewater Surveillance"
      ],
      "interventions": [
        {
          "name": "Wastewater vaccine prompts",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Syracuse University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 100000,
      "start_date": "2023-03-01",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-14",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05766189"
    },
    {
      "nct_id": "NCT04758962",
      "title": "A Study of the Safety of and Immune Response to Varying Doses of a Vaccine Against COVID-19 in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Virus Diseases"
      ],
      "interventions": [
        {
          "name": "1 µg CoV2 SAM (LNP)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 40,
      "start_date": "2021-02-15",
      "completion_date": "2022-04-19",
      "has_results": false,
      "last_update_posted_date": "2024-01-18",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04758962"
    },
    {
      "nct_id": "NCT05543642",
      "title": "The COVID-19 VaccinE Response and Co-Administration in Rheumatology Patients (COVER-CoAd)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Rheumatic Diseases"
      ],
      "interventions": [
        {
          "name": "Hepatitis A vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Diphtheria, pertussis, and tetanus booster vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 129,
      "start_date": "2022-10-11",
      "completion_date": "2026-08",
      "has_results": false,
      "last_update_posted_date": "2026-05-06",
      "last_synced_at": "2026-06-10T16:08:03.754Z",
      "location_count": 7,
      "location_summary": "Northport, Alabama • Riverview, Florida • Boise, Idaho + 4 more",
      "locations": [
        {
          "city": "Northport",
          "state": "Alabama"
        },
        {
          "city": "Riverview",
          "state": "Florida"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "Clovis",
          "state": "New Mexico"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05543642"
    }
  ]
}