{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Covid19%2C+Vaccines&page=2",
    "query": {
      "condition": "Covid19, Vaccines",
      "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=Covid19%2C+Vaccines&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-07-24T11:48:07.090Z",
  "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": "NCT06020118",
      "title": "Comparative Immunogenicity of Concomitant vs Sequential mRNA COVID-19 and Influenza Vaccinations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Influenza",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Simultaneous Vaccination (Influenza Vaccine and mRNA COVID booster)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sequential Vaccination (Influenza vaccine then mRNA COVID booster)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sequential Vaccination (mRNA COVID booster then Influenza vaccine)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "6 Years to 64 Years"
      },
      "enrollment_count": 455,
      "start_date": "2023-09-25",
      "completion_date": "2024-05-17",
      "has_results": true,
      "last_update_posted_date": "2025-06-13",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 8,
      "location_summary": "Phoenix, Arizona • Tempe, Arizona • Atlanta, Georgia + 4 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06020118"
    },
    {
      "nct_id": "NCT05085613",
      "title": "Does Framing and Humor Improve the Effectiveness of Messages About COVID-19 Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Beliefs"
      ],
      "interventions": [
        {
          "name": "Corrective message framing and humor",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins Bloomberg School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "21 Years to 99 Years"
      },
      "enrollment_count": 100,
      "start_date": "2021-10-31",
      "completion_date": "2022-03-31",
      "has_results": true,
      "last_update_posted_date": "2023-08-21",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05085613"
    },
    {
      "nct_id": "NCT04860297",
      "title": "A Study to Evaluate Safety and Immunogenicity of mRNA-1273 Vaccine to Prevent COVID-19 in Adult Organ Transplant Recipients and in Healthy Adult Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "SARS-CoV-2"
      ],
      "interventions": [
        {
          "name": "mRNA-1273",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ModernaTX, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 234,
      "start_date": "2021-04-16",
      "completion_date": "2023-05-22",
      "has_results": true,
      "last_update_posted_date": "2024-06-18",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 15,
      "location_summary": "Mesa, Arizona • San Diego, California • New Haven, Connecticut + 12 more",
      "locations": [
        {
          "city": "Mesa",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04860297"
    },
    {
      "nct_id": "NCT04642638",
      "title": "Safety, Immunogenicity, and Efficacy of INO-4800 for COVID-19 in Adults at High Risk of SARS-CoV-2 Exposure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Coronavirus Infection",
        "Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)",
        "COVID-19 Disease"
      ],
      "interventions": [
        {
          "name": "INO-4800",
          "type": "DRUG"
        },
        {
          "name": "CELLECTRA® 2000",
          "type": "DEVICE"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "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": 1307,
      "start_date": "2020-11-30",
      "completion_date": "2022-09-13",
      "has_results": true,
      "last_update_posted_date": "2023-12-20",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 16,
      "location_summary": "Chandler, Arizona • Phoenix, Arizona • Tempe, Arizona + 12 more",
      "locations": [
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04642638"
    },
    {
      "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": "2026-07-24T11:48:07.090Z",
      "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"
    },
    {
      "nct_id": "NCT04664309",
      "title": "Understanding Immunity to the COVID-19 Vaccines",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19",
        "Immunity",
        "Vaccine"
      ],
      "interventions": [
        {
          "name": "No intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 43,
      "start_date": "2021-03-26",
      "completion_date": "2022-01-06",
      "has_results": false,
      "last_update_posted_date": "2022-02-28",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04664309"
    },
    {
      "nct_id": "NCT06761612",
      "title": "Retail COVID-19 Study",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID - 19"
      ],
      "interventions": [
        {
          "name": "FDA approved mRNA vaccines",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Biomedical Advanced Research and Development Authority",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "3 Years and older"
      },
      "enrollment_count": 2519,
      "start_date": "2024-10-19",
      "completion_date": "2026-05-14",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 20,
      "location_summary": "Kissimmee, Florida • Chicago, Illinois • Oak Park, Illinois + 15 more",
      "locations": [
        {
          "city": "Kissimmee",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Oak Park",
          "state": "Illinois"
        },
        {
          "city": "River Forest",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06761612"
    },
    {
      "nct_id": "NCT07051031",
      "title": "COVID-19 Reactogenicity",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Nuvaxovid (NVX-CoV2705)",
          "type": "DRUG"
        },
        {
          "name": "mNEXSPIKE mRNA-1283",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Marcel Curlin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2025-10-01",
      "completion_date": "2026-06-14",
      "has_results": false,
      "last_update_posted_date": "2026-03-04",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07051031"
    },
    {
      "nct_id": "NCT06119854",
      "title": "Brief Digital Intervention to Increase COVID-19 Vaccination Among Individuals With Anxiety or Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Misinformation",
        "Vaccine Hesitancy",
        "Anxiety",
        "Depression",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Attitudinal inoculation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive-behavioral therapy-informed intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Conventional public health messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "City University of New York, School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1419,
      "start_date": "2024-04-15",
      "completion_date": "2024-11-15",
      "has_results": true,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06119854"
    },
    {
      "nct_id": "NCT06950177",
      "title": "Pancoronavirus Vaccine Study in Healthy Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID-19 Respiratory Infection",
        "SARS CoV 2 Infection",
        "COVID-19 Vaccine"
      ],
      "interventions": [
        {
          "name": "CoV-RBD-scNP-001 and 3M-052-AF",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 51,
      "start_date": "2025-07-08",
      "completion_date": "2026-08-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-07-24T11:48:07.090Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06950177"
    }
  ]
}