{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Covid-19+Antibody+Test&page=3",
    "query": {
      "intervention": "Covid-19 Antibody Test",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 76,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Covid-19+Antibody+Test&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Covid-19+Antibody+Test&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T01:30:56.912Z",
  "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": "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": "2026-10-06T01:30:56.912Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04383587"
    },
    {
      "nct_id": "NCT05973084",
      "title": "COVID-19 Transmission and Morbidity in Malawi",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS CoV 2 Infection",
        "SARS CoV 2 Vaccination"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "5 Years to 75 Years"
      },
      "enrollment_count": 1500,
      "start_date": "2023-01-17",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2026-05-28",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05973084"
    },
    {
      "nct_id": "NCT04883164",
      "title": "Immunity After COVID-19 Vaccination",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immunity to COVID-19"
      ],
      "interventions": [
        {
          "name": "Cellular and antibody response to spike antigens of SARS-CoV-2 in both groups in peripheral blood samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Plexision",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 300,
      "start_date": "2021-04-27",
      "completion_date": "2023-03-31",
      "has_results": false,
      "last_update_posted_date": "2021-05-12",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04883164"
    },
    {
      "nct_id": "NCT04944095",
      "title": "Change in Antibody Levels Following SARS-CoV-2 (Covid-19) Vaccinations",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid-19",
        "Subjects Vaccinated Against Covid-19"
      ],
      "interventions": [
        {
          "name": "Change in SARS-CoV-2 Antibody Levels",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Dr. Sidney J. Stohs",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "55 Years and older"
      },
      "enrollment_count": 10000,
      "start_date": "2021-08-10",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-08-29",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 1,
      "location_summary": "Southlake, Texas",
      "locations": [
        {
          "city": "Southlake",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04944095"
    },
    {
      "nct_id": "NCT05864118",
      "title": "Comparison of Nasopharyngeal Swab v. Nasopharyngeal Saline Wash or Saliva Collection in Testing for Respiratory Viruses",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Respiratory Tract Infections"
      ],
      "interventions": [
        {
          "name": "Respiratory pathogen panel PCR test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "COVID-19 antibody test",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2023-08-21",
      "completion_date": "2027-12",
      "has_results": false,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05864118"
    },
    {
      "nct_id": "NCT04597047",
      "title": "Research & Evaluation of LumiraDx SARS-CoV-2 (COVID-19) Point of Care Ab Test",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Capillary Collection & Testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Venous Draw & Testing",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "LumiraDx UK Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "2 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2020-07-09",
      "completion_date": "2020-09-03",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 4,
      "location_summary": "Tucson, Arizona • Northglenn, Colorado • Wichita, Kansas + 1 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Northglenn",
          "state": "Colorado"
        },
        {
          "city": "Wichita",
          "state": "Kansas"
        },
        {
          "city": "Jackson",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04597047"
    },
    {
      "nct_id": "NCT01073475",
      "title": "Maternal Newborn Health Registry",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pregnancy Outcome Trends in Low-resource Geographic Areas"
      ],
      "interventions": [
        {
          "name": "There is no intervention associated with the parent MNHR study. For the MNHR COVID sub-study, participants will be asked to provide a blood specimen at or near delivery.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "NICHD Global Network for Women's and Children's Health",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 950000,
      "start_date": "2008-05",
      "completion_date": "2030-05",
      "has_results": false,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 8,
      "location_summary": "Birmingham, Alabama • Aurora, Colorado • Indianapolis, Indiana + 5 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01073475"
    },
    {
      "nct_id": "NCT02735707",
      "title": "Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired Pneumonia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Community-acquired Pneumonia, Influenza, COVID-19"
      ],
      "interventions": [
        {
          "name": "Ceftriaxone",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin or Levofloxacin",
          "type": "DRUG"
        },
        {
          "name": "Piperacillin-tazobactam",
          "type": "DRUG"
        },
        {
          "name": "Ceftaroline",
          "type": "DRUG"
        },
        {
          "name": "Amoxicillin-clavulanate",
          "type": "DRUG"
        },
        {
          "name": "Standard course macrolide",
          "type": "DRUG"
        },
        {
          "name": "Extended course macrolide",
          "type": "DRUG"
        },
        {
          "name": "No systemic corticosteroid",
          "type": "OTHER"
        },
        {
          "name": "Fixed-duration Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Shock-dependent hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Fixed-duration higher dose Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "No antiviral agent for influenza",
          "type": "OTHER"
        },
        {
          "name": "Five-days oseltamivir",
          "type": "DRUG"
        },
        {
          "name": "Ten-days oseltamivir",
          "type": "DRUG"
        },
        {
          "name": "No antiviral agent for COVID-19",
          "type": "OTHER"
        },
        {
          "name": "Lopinavir / Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine + lopinavir/ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Ivermectin",
          "type": "DRUG"
        },
        {
          "name": "No immune modulation for COVID-19",
          "type": "OTHER"
        },
        {
          "name": "Interferon beta-1a",
          "type": "DRUG"
        },
        {
          "name": "Anakinra",
          "type": "DRUG"
        },
        {
          "name": "Tocilizumab",
          "type": "DRUG"
        },
        {
          "name": "Sarilumab",
          "type": "DRUG"
        },
        {
          "name": "Local standard venous thromboprophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Therapeutic dose anticoagulation",
          "type": "DRUG"
        },
        {
          "name": "Conventional low dose thromboprophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Intermediate dose thromboprophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Continuation of therapeutic dose anticoagulation",
          "type": "DRUG"
        },
        {
          "name": "No immunoglobulin",
          "type": "OTHER"
        },
        {
          "name": "Convalescent plasma",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Delayed administration of convalescent plasma",
          "type": "BIOLOGICAL"
        },
        {
          "name": "No vitamin C",
          "type": "OTHER"
        },
        {
          "name": "Vitamin C",
          "type": "DRUG"
        },
        {
          "name": "No antiplatelet",
          "type": "OTHER"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "P2Y12 inhibitor",
          "type": "DRUG"
        },
        {
          "name": "No simvastatin",
          "type": "OTHER"
        },
        {
          "name": "Simvastatin",
          "type": "DRUG"
        },
        {
          "name": "Eritoran",
          "type": "DRUG"
        },
        {
          "name": "Apremilast",
          "type": "DRUG"
        },
        {
          "name": "Clinician-preferred mechanical ventilation strategy",
          "type": "PROCEDURE"
        },
        {
          "name": "Protocolised mechanical ventilation strategy",
          "type": "PROCEDURE"
        },
        {
          "name": "No renin-angiotensin system inhibitor",
          "type": "OTHER"
        },
        {
          "name": "Angiotensin converting enzyme inhibitor",
          "type": "DRUG"
        },
        {
          "name": "Angiotensin Receptor Blockers",
          "type": "DRUG"
        },
        {
          "name": "ARB + DMX-200",
          "type": "DRUG"
        },
        {
          "name": "No cysteamine",
          "type": "OTHER"
        },
        {
          "name": "Cysteamine",
          "type": "DRUG"
        },
        {
          "name": "Fixed-duration dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Baloxavir Marboxil",
          "type": "DRUG"
        },
        {
          "name": "Five-days oseltamivir + baloxavir marboxil",
          "type": "DRUG"
        },
        {
          "name": "Ten-days oseltamivir + baloxavir marboxil",
          "type": "DRUG"
        },
        {
          "name": "No endothelial modulator",
          "type": "OTHER"
        },
        {
          "name": "Imatinib",
          "type": "DRUG"
        },
        {
          "name": "No Immune Modulator for Influenza",
          "type": "OTHER"
        },
        {
          "name": "Baricitinib",
          "type": "DRUG"
        },
        {
          "name": "Nirmatrelvir/ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Remdesivir",
          "type": "DRUG"
        },
        {
          "name": "Nirmatrelvir/ritonavir + remdesivir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "UMC Utrecht",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20000,
      "start_date": "2016-04-11",
      "completion_date": "2028-02",
      "has_results": false,
      "last_update_posted_date": "2024-07-12",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 11,
      "location_summary": "Jacksonville, Florida • Augusta, Georgia • Chicago, Illinois + 8 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02735707"
    },
    {
      "nct_id": "NCT05227404",
      "title": "Evaluation of Point-of-Care (EPOC) for COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19",
        "SARS CoV 2 Infection"
      ],
      "interventions": [
        {
          "name": "LumiraDX",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "RightSign",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Case Control",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 330,
      "start_date": "2022-04-08",
      "completion_date": "2022-09-02",
      "has_results": true,
      "last_update_posted_date": "2024-12-06",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05227404"
    },
    {
      "nct_id": "NCT04901624",
      "title": "Use of Behavioral Economics in Repeat SARS-CoV-2 (COVID-19) Antibody Testing in Disadvantaged Communities",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "SARS-CoV-2"
      ],
      "interventions": [
        {
          "name": "Family Risk Messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Personal Risk Messaging",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Loss Protection",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Lottery Incentive",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 2164,
      "start_date": "2021-06-29",
      "completion_date": "2023-06-03",
      "has_results": true,
      "last_update_posted_date": "2024-08-14",
      "last_synced_at": "2026-10-06T01:30:56.912Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04901624"
    }
  ]
}