{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Covid-19+Vaccine&page=5",
    "query": {
      "condition": "Covid-19 Vaccine",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 328,
    "total_pages": 33,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Covid-19+Vaccine&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Covid-19+Vaccine&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T17:36:13.235Z",
  "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": "NCT05293392",
      "title": "Improving COVID-19 Vaccine Uptake Among Black and Latino Youth",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Culturally-Tailored COVID-19 Vaccine Uptake Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Nemours Children's Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 5792,
      "start_date": "2022-01-31",
      "completion_date": "2022-05-20",
      "has_results": true,
      "last_update_posted_date": "2023-09-28",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 1,
      "location_summary": "Wilmington, Delaware",
      "locations": [
        {
          "city": "Wilmington",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05293392"
    },
    {
      "nct_id": "NCT04969263",
      "title": "COVID-19 Protection After Transplant Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Kidney Transplant Recipients"
      ],
      "interventions": [
        {
          "name": "BNT162b2 vaccine (Pfizer/BioNTech)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1273 vaccine (Moderna)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 81,
      "start_date": "2021-08-10",
      "completion_date": "2023-03-10",
      "has_results": true,
      "last_update_posted_date": "2025-07-30",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04969263"
    },
    {
      "nct_id": "NCT06683352",
      "title": "A Study to Learn About Flu and COVID-19 Vaccine Responses in Healthy People",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Influenza,Human",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Investigational Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Investigational Influenza/COVID-19 Vaccine",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Licensed Influenza Vaccine 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Licensed Influenza Vaccine 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "COMBINATION_PRODUCT",
        "OTHER"
      ],
      "sponsor": "BioNTech SE",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1353,
      "start_date": "2024-11-11",
      "completion_date": "2025-07-15",
      "has_results": true,
      "last_update_posted_date": "2026-08-19",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 22,
      "location_summary": "Lake Forest, California • San Diego, California • Walnut Creek, California + 17 more",
      "locations": [
        {
          "city": "Lake Forest",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Milford",
          "state": "Connecticut"
        },
        {
          "city": "Hialeah",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06683352"
    },
    {
      "nct_id": "NCT04801524",
      "title": "Text-based Reminders to Promote COVID-19 Vaccinations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19, Vaccines"
      ],
      "interventions": [
        {
          "name": "Self-benefit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Prosocial-benefit",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Early access",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fresh start",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 250000,
      "start_date": "2021-02-07",
      "completion_date": "2022-01-01",
      "has_results": false,
      "last_update_posted_date": "2022-09-13",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 1,
      "location_summary": "Westwood, Los Angeles, California",
      "locations": [
        {
          "city": "Westwood, Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04801524"
    },
    {
      "nct_id": "NCT04798027",
      "title": "Study of mRNA Vaccine Formulation Against COVID-19 in Healthy Adults 18 Years of Age and Older",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "SARS-CoV-2 mRNA vaccine formulation 1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "SARS-CoV-2 mRNA vaccine formulation 2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "SARS-CoV-2 mRNA vaccine formulation 3",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo (0.9% normal saline)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Sanofi Pasteur, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 182,
      "start_date": "2021-03-12",
      "completion_date": "2022-06-27",
      "has_results": true,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 12,
      "location_summary": "Rolling Hills Estates, California • Hollywood, Florida • Miami, Florida + 9 more",
      "locations": [
        {
          "city": "Rolling Hills Estates",
          "state": "California"
        },
        {
          "city": "Hollywood",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04798027"
    },
    {
      "nct_id": "NCT05104840",
      "title": "A Randomized Study to Determine the Expression of the Furin Protein in Patients With SARS-CoV-2 and Vaccinated Against Coronavirus",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19",
        "SARS-CoV-2",
        "Furin",
        "RGMc Processing",
        "Paired Basic Amino Acid Cleaving Enzyme (PACE)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Center Trials & Treatment",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2432,
      "start_date": "2022-08-10",
      "completion_date": "2023-03-28",
      "has_results": false,
      "last_update_posted_date": "2023-03-29",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 4,
      "location_summary": "Jacksonville, Florida • Ocala, Florida • Charleston, South Carolina + 1 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Ocala",
          "state": "Florida"
        },
        {
          "city": "Charleston",
          "state": "South Carolina"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05104840"
    },
    {
      "nct_id": "NCT06703190",
      "title": "Estimated Vaccine Effectiveness and Durability of Pfizer/BioNTech 2024-2025 COVID-19 Vaccine",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Pfizer-BioNTech BNT162b2 COVID-19 Vaccinated",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Not vaccinated with 2024-2025 formulated COVID-19 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2024-11-25",
      "completion_date": "2025-06-06",
      "has_results": false,
      "last_update_posted_date": "2025-11-06",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06703190"
    },
    {
      "nct_id": "NCT04025580",
      "title": "Systems Analyses of the Immune Response to the Seasonal Influenza Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "Flucelvax",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluvirin",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fluzone High Dose",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 98,
      "start_date": "2019-10-02",
      "completion_date": "2023-01-31",
      "has_results": true,
      "last_update_posted_date": "2024-01-02",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04025580"
    },
    {
      "nct_id": "NCT07287137",
      "title": "Comparative Immunogenicity of Respiratory Virus Vaccines (CIRV2) Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID -19",
        "COVID - 19",
        "COVID 19",
        "Influenza",
        "Respiratory Virus",
        "Respiratory Viruses",
        "Respiratory Virus Infection",
        "Respiratory Virus Infections"
      ],
      "interventions": [
        {
          "name": "Pfizer-BioNTech mRNA COVID-19 vaccine",
          "type": "DRUG"
        },
        {
          "name": "Novavax recombinant protein vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 54,
      "start_date": "2025-11-12",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-09-11",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07287137"
    },
    {
      "nct_id": "NCT06698497",
      "title": "Boosting COVID-19 Vaccination Uptake Using Wastewater Surveillance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Uptake"
      ],
      "interventions": [
        {
          "name": "Communication Campaign",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Syracuse University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 40,
      "start_date": "2024-09-13",
      "completion_date": "2025-07-10",
      "has_results": false,
      "last_update_posted_date": "2025-09-15",
      "last_synced_at": "2026-10-10T17:36:13.235Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06698497"
    }
  ]
}