{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Serology&page=2",
    "query": {
      "intervention": "Serology",
      "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?intervention=Serology&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T01:37:18.201Z",
  "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": "NCT00550368",
      "title": "Clinical Experiment of Helicobacter Pylori Transmission",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Infection",
        "Achlorhydria"
      ],
      "interventions": [
        {
          "name": "Biological intervention: Enteropathogenic E. coli",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "59 Years",
        "sex": "ALL",
        "summary": "35 Years to 59 Years"
      },
      "enrollment_count": 45,
      "start_date": "2005-08",
      "completion_date": "2009-04",
      "has_results": true,
      "last_update_posted_date": "2016-12-06",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00550368"
    },
    {
      "nct_id": "NCT04432272",
      "title": "ANTIBODY-LEVEL BASED ANALYSIS OF COVID-19 CONVALESCENT SERUM (ABACCuS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "COVID-19",
        "Severe Acute Respiratory Syndrome (SARS)",
        "Coronavirus Infections"
      ],
      "interventions": [
        {
          "name": "COVID-19 convalescent plasma",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Corewell Health East",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 71,
      "start_date": "2020-07-16",
      "completion_date": "2020-11-28",
      "has_results": true,
      "last_update_posted_date": "2022-03-09",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 1,
      "location_summary": "Royal Oak, Michigan",
      "locations": [
        {
          "city": "Royal Oak",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04432272"
    },
    {
      "nct_id": "NCT03566407",
      "title": "Blood and Stool Molecular Biomarkers Longitudinal Detection Study in Crohn's Disease (CD) Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Crohn's Disease"
      ],
      "interventions": [
        {
          "name": "Colonoscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Prometheus Laboratories",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 41,
      "start_date": "2018-05-04",
      "completion_date": "2019-03-29",
      "has_results": false,
      "last_update_posted_date": "2019-06-07",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 5,
      "location_summary": "Los Angeles, California • Ventura, California • Hamden, Connecticut + 2 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Ventura",
          "state": "California"
        },
        {
          "city": "Hamden",
          "state": "Connecticut"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03566407"
    },
    {
      "nct_id": "NCT04466644",
      "title": "COVID-19: A Prevalence Study of Two ART Centres After the Pandemic Lockdown in the USA (COVID-19 Free Clinics)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "ELISA",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "RT-PCR",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Igenomix",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 340,
      "start_date": "2020-06-08",
      "completion_date": "2020-08-25",
      "has_results": false,
      "last_update_posted_date": "2020-09-14",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Pleasant Grove, Utah",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Pleasant Grove",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04466644"
    },
    {
      "nct_id": "NCT04341441",
      "title": "Will Hydroxychloroquine Impede or Prevent COVID-19",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "COVID-19",
        "Coronavirus",
        "Coronavirus Infections",
        "SARS-CoV 2"
      ],
      "interventions": [
        {
          "name": "Hydroxychloroquine - Daily Dosing",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine - Weekly Dosing",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral tablet",
          "type": "OTHER"
        },
        {
          "name": "Monitoring Visit - Baseline",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Monitoring Visit - Week 4",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Monitoring Visit - Week 8",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Weekly Assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 624,
      "start_date": "2020-04-07",
      "completion_date": "2020-12-15",
      "has_results": true,
      "last_update_posted_date": "2022-06-21",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04341441"
    },
    {
      "nct_id": "NCT01663740",
      "title": "A Study on Spermatogenesis in Male Renal Transplant Recipients Receiving Valganciclovir (Valcyte®) Versus Untreated Matched Controls",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Cytomegalovirus Infections"
      ],
      "interventions": [
        {
          "name": "Valganciclovir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "20 Years to 50 Years · Male only"
      },
      "enrollment_count": 59,
      "start_date": "2012-01-30",
      "completion_date": "2016-12-30",
      "has_results": true,
      "last_update_posted_date": "2018-08-31",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 16,
      "location_summary": "Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 12 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01663740"
    },
    {
      "nct_id": "NCT02545790",
      "title": "Cardiac Remodeling and Circulating Biomarkers in Pediatric Left Ventricular Pressure Loading Lesions",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coarctation of Aorta",
        "Aortic Stenosis",
        "Cardiac Hypertrophy"
      ],
      "interventions": [
        {
          "name": "Echocardiogram",
          "type": "PROCEDURE"
        },
        {
          "name": "Serology",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 31,
      "start_date": "2015-08",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-01-19",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02545790"
    },
    {
      "nct_id": "NCT01424644",
      "title": "A Phase 4, Placebo-Controlled, Randomized Study to Evaluate the Immunogenicity and Safety of HPV and Tdap When Administered With MenACWY in Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Meningococcal Meningitis"
      ],
      "interventions": [
        {
          "name": "Placebo + Combined Tetanus, Reduced Diphtheria Toxoid, Acellular Pertussis Vaccine + Quadrivalent Human Papillomavirus Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "MenACWY-CRM Conjugate Vaccine + Combined Tetanus, Reduced Diphtheria Toxoid, Acellular Pertussis Vaccine + Quadrivalent Human Papillomavirus Vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novartis",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "11 Years to 18 Years"
      },
      "enrollment_count": 801,
      "start_date": "2011-09",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2014-02-14",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 17,
      "location_summary": "Birmingham, Alabama • Fremont, California • Madera, California + 14 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Madera",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Dayton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01424644"
    },
    {
      "nct_id": "NCT00524680",
      "title": "Vitamin D in Treating Patients With Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "cholecalciferol",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "MALE",
        "summary": "18 Years to 120 Years · Male only"
      },
      "enrollment_count": 148,
      "start_date": "2007-06",
      "completion_date": "2013-03",
      "has_results": true,
      "last_update_posted_date": "2015-11-02",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00524680"
    },
    {
      "nct_id": "NCT04713748",
      "title": "Tasso-SST OnDemand Comparator Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "C3PI Study Testing Group"
      ],
      "interventions": [
        {
          "name": "Tasso-SST on Demand",
          "type": "DEVICE"
        },
        {
          "name": "Regular Phlebotomy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 135,
      "start_date": "2021-01-15",
      "completion_date": "2021-03-11",
      "has_results": true,
      "last_update_posted_date": "2022-07-28",
      "last_synced_at": "2026-09-25T01:37:18.201Z",
      "location_count": 1,
      "location_summary": "Kannapolis, North Carolina",
      "locations": [
        {
          "city": "Kannapolis",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04713748"
    }
  ]
}