{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=SARS-CoV-2+antibody+testing&page=2",
    "query": {
      "intervention": "SARS-CoV-2 antibody testing",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 66,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=SARS-CoV-2+antibody+testing&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=SARS-CoV-2+antibody+testing&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T09:23:47.931Z",
  "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": "NCT05042193",
      "title": "A Prospective Virtual Study to Evaluate the Longevity of IgG Antibodies in Individuals Exposed to COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS-CoV-2 Acute Respiratory Disease"
      ],
      "interventions": [
        {
          "name": "SARS-CoV-2",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Everly Health",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1883,
      "start_date": "2021-03-19",
      "completion_date": "2022-06-14",
      "has_results": false,
      "last_update_posted_date": "2022-06-15",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05042193"
    },
    {
      "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": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04969263"
    },
    {
      "nct_id": "NCT04421404",
      "title": "Effects of COVID-19 Convalescent Plasma (CCP) on Coronavirus-associated Complications in Hospitalized Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19",
        "Sars-CoV2"
      ],
      "interventions": [
        {
          "name": "COVID-19 Convalescent Plasma (CCP)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Priscilla Hsue, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 34,
      "start_date": "2020-06-09",
      "completion_date": "2021-04-30",
      "has_results": true,
      "last_update_posted_date": "2022-10-07",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 3,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04421404"
    },
    {
      "nct_id": "NCT04834401",
      "title": "Effect of Disease Modifying Therapy on Antibody Response to COVID19 Vaccination in Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Covid19"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "St. Barnabas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 45,
      "start_date": "2021-03-22",
      "completion_date": "2022-05-17",
      "has_results": false,
      "last_update_posted_date": "2022-08-18",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "Livingston, New Jersey",
      "locations": [
        {
          "city": "Livingston",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04834401"
    },
    {
      "nct_id": "NCT04596579",
      "title": "SARS-CoV-2 (COVID-19) Immune Surveillance Among a Population Based Sample of Adults in Florida",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coronavirus Infection"
      ],
      "interventions": [
        {
          "name": "SARS-CoV-2 Antibody Analysis",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Weck-cel Swab Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Web Based Questionnaire",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1135,
      "start_date": "2020-10-17",
      "completion_date": "2021-07-25",
      "has_results": false,
      "last_update_posted_date": "2022-10-03",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04596579"
    },
    {
      "nct_id": "NCT04699903",
      "title": "Clinical Evaluation of a Point-of-Care (POC), SARS-CoV-2 (COVID-19) IgG Antibody Test in Fingerstick Whole Blood",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS-Cov-2, Covid19"
      ],
      "interventions": [
        {
          "name": "POC SARS-Cov-2 IgG Antibody test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Lumos Diagnostics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": 201,
      "start_date": "2021-01-05",
      "completion_date": "2021-04-09",
      "has_results": false,
      "last_update_posted_date": "2021-06-18",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 3,
      "location_summary": "Colton, California • West Palm Beach, Florida • Chicago, Illinois",
      "locations": [
        {
          "city": "Colton",
          "state": "California"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04699903"
    },
    {
      "nct_id": "NCT04837651",
      "title": "Humoral and T-Cell Responses to COVID-19 Vaccination in Multiple Sclerosis Patients Treated With Ocrelizumab Treated With Ocrelizumab or Natalizumab",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Demyelinating Autoimmune Diseases, CNS",
        "Autoimmune Diseases of the Nervous System",
        "Nervous System Diseases",
        "Demyelinating Diseases",
        "Autoimmune Diseases",
        "Immune System Diseases",
        "Pathologic Processes"
      ],
      "interventions": [
        {
          "name": "Elecsys semi-quantitative Anti-SARS-CoV-2 antibody test",
          "type": "DEVICE"
        },
        {
          "name": "T-Detect COVID T-cell blood test",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Dragonfly Research, LLC",
      "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": 48,
      "start_date": "2021-03-02",
      "completion_date": "2021-07-01",
      "has_results": false,
      "last_update_posted_date": "2021-08-02",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "Wellesley, Massachusetts",
      "locations": [
        {
          "city": "Wellesley",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04837651"
    },
    {
      "nct_id": "NCT04389294",
      "title": "HSS Covid-19 Antibody Serology Among Surgeons & Anesthesiologists",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID"
      ],
      "interventions": [
        {
          "name": "SARS-CoV2 serum antibody testing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 143,
      "start_date": "2020-05-05",
      "completion_date": "2020-09-04",
      "has_results": true,
      "last_update_posted_date": "2024-01-03",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04389294"
    },
    {
      "nct_id": "NCT05357885",
      "title": "Quantitative COVID-19 SARS-CoV-2 Antibody Pre and Post Cardiopulmonary Bypass",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Laboratory Assessment SARS-CoV-2 Antibody Levels Before and After Surgery for Patients Requiring Cardiopulmonary Bypass"
      ],
      "interventions": [
        {
          "name": "SARS-CoV-2 Antibody test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2021-11-17",
      "completion_date": "2022-03-17",
      "has_results": false,
      "last_update_posted_date": "2022-05-03",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05357885"
    },
    {
      "nct_id": "NCT04383587",
      "title": "Seroprevalence of SARS CoV 2 Antibodies in Previously Undiagnosed Healthcare Workers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "SARS-CoV 2",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Serologic testing",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2020-05-06",
      "completion_date": "2020-07-31",
      "has_results": true,
      "last_update_posted_date": "2022-04-13",
      "last_synced_at": "2026-10-06T09:23:47.931Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04383587"
    }
  ]
}