{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronic+Spontaneous+Urticaria+%28CSU%29&page=3",
    "query": {
      "condition": "Chronic Spontaneous Urticaria (CSU)",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 60,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronic+Spontaneous+Urticaria+%28CSU%29&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Chronic+Spontaneous+Urticaria+%28CSU%29&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T23:48:31.352Z",
  "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": "NCT03494881",
      "title": "Mepolizumab for the Treatment of Chronic Spontaneous Urticaria",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Chronic Spontaneous Urticaria"
      ],
      "interventions": [
        {
          "name": "Nucala",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 10,
      "start_date": "2019-07-30",
      "completion_date": "2025-02-25",
      "has_results": true,
      "last_update_posted_date": "2025-08-27",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03494881"
    },
    {
      "nct_id": "NCT03111628",
      "title": "Role of Immunoglobulin E (IgE) Bearing Cells in Chronic Idiopathic Urticaria (CIU)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Urticaria Chronic"
      ],
      "interventions": [
        {
          "name": "Omalizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2017-10-06",
      "completion_date": "2020-05-01",
      "has_results": true,
      "last_update_posted_date": "2021-06-14",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03111628"
    },
    {
      "nct_id": "NCT01264939",
      "title": "A Safety Study of Xolair (Omalizumab) in Patients With Chronic Idiopathic Urticaria (CIU) Who Remain Symptomatic Despite Treatment With H1 Antihistamines, H2 Blockers, and/or Leukotriene Receptor Antagonists",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Idiopathic Urticaria"
      ],
      "interventions": [
        {
          "name": "Omalizumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "H1 antihistamine, H2 antihistamine, leukotriene receptor antagonist",
          "type": "DRUG"
        },
        {
          "name": "Diphenhydramine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Genentech, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "12 Years to 75 Years"
      },
      "enrollment_count": 336,
      "start_date": "2011-02",
      "completion_date": "2012-11",
      "has_results": true,
      "last_update_posted_date": "2013-11-26",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 40,
      "location_summary": "Scottsdale, Arizona • Mission Viejo, California • Napa, California + 35 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "Napa",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01264939"
    },
    {
      "nct_id": "NCT02814630",
      "title": "Three-month, Single-center Study to Identify Biomarkers/Response to Xolair Therapy in Chronic Idiopathic Urticaria",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Idiopathic Urticaria"
      ],
      "interventions": [
        {
          "name": "Xolair",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Asthma Inc Clinical Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 20,
      "start_date": "2016-09",
      "completion_date": "2018-11-02",
      "has_results": false,
      "last_update_posted_date": "2019-01-24",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02814630"
    },
    {
      "nct_id": "NCT05795153",
      "title": "A Multicenter, Open-label Phase 3 Study: Ambulatory Blood Pressure Monitoring in Adult Patients With Chronic Spontaneous Urticaria Inadequately Controlled by H1-antihistamines Treated With Remibrutinib up to 12 Weeks.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Spontaneous Urticaria"
      ],
      "interventions": [
        {
          "name": "LOU064",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 144,
      "start_date": "2023-04-05",
      "completion_date": "2024-04-25",
      "has_results": true,
      "last_update_posted_date": "2025-10-16",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 10,
      "location_summary": "Little Rock, Arkansas • Aventura, Florida • Greenacres City, Florida + 7 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Aventura",
          "state": "Florida"
        },
        {
          "city": "Greenacres City",
          "state": "Florida"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "Glenview",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05795153"
    },
    {
      "nct_id": "NCT01008592",
      "title": "The Effect of Levocetirizine on Inflammatory Mediators in Dermatographism",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Rhinitis",
        "Urticaria"
      ],
      "interventions": [
        {
          "name": "levocetirizine or placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Wake Forest University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 11,
      "start_date": "2009-04",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2017-02-28",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01008592"
    },
    {
      "nct_id": "NCT05526521",
      "title": "A Study to Investigate the Pharmacokinetics and Safety of Dupilumab in Participants ≥2 Years to <12 Years of Age With Uncontrolled Chronic Spontaneous Urticaria (CSU) (LIBERTY-CSU CUPIDKids)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Spontaneous Urticaria"
      ],
      "interventions": [
        {
          "name": "Dupilumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanofi",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "2 Years to 11 Years"
      },
      "enrollment_count": 15,
      "start_date": "2022-08-25",
      "completion_date": "2025-02-03",
      "has_results": true,
      "last_update_posted_date": "2025-11-25",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 9,
      "location_summary": "Coral Gables, Florida • Boise, Idaho • St Louis, Missouri + 6 more",
      "locations": [
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Boise",
          "state": "Idaho"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "Hawthorne",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05526521"
    },
    {
      "nct_id": "NCT04976192",
      "title": "Study to Compare Efficacy and Safety of TEV-45779 With XOLAIR (Omalizumab) in Adults With Chronic Idiopathic Urticaria",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Urticaria"
      ],
      "interventions": [
        {
          "name": "TEV-45779",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "XOLAIR® Injection",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "Teva Pharmaceuticals USA",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 608,
      "start_date": "2021-08-30",
      "completion_date": "2024-04-05",
      "has_results": true,
      "last_update_posted_date": "2025-10-07",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 9,
      "location_summary": "Bakersfield, California • Clearwater, Florida • Coral Gables, Florida + 6 more",
      "locations": [
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Kissimmee",
          "state": "Florida"
        },
        {
          "city": "Maitland",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04976192"
    },
    {
      "nct_id": "NCT04109313",
      "title": "An Open-label Extension Study to Evaluate the Long-term Safety and Tolerability of LOU064 in Subjects With CSU",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Spontaneous Urticaria"
      ],
      "interventions": [
        {
          "name": "LOU064",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 229,
      "start_date": "2019-10-24",
      "completion_date": "2022-09-09",
      "has_results": true,
      "last_update_posted_date": "2024-06-20",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 10,
      "location_summary": "Litchfield Park, Arizona • Little Rock, Arkansas • Mission Viejo, California + 7 more",
      "locations": [
        {
          "city": "Litchfield Park",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Mission Viejo",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04109313"
    },
    {
      "nct_id": "NCT05030311",
      "title": "A Phase 3 Study of Efficacy and Safety of Remibrutinib in the Treatment of CSU in Adults Inadequately Controlled by H1 Antihistamines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Spontaneous Urticaria"
      ],
      "interventions": [
        {
          "name": "LOU064 25 mg (b.i.d)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "LOU064 25 mg (b.i.d) as a tablet.",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 470,
      "start_date": "2021-11-30",
      "completion_date": "2024-01-19",
      "has_results": true,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-10-07T23:48:31.352Z",
      "location_count": 26,
      "location_summary": "Birmingham, Alabama • North Little Rock, Arkansas • Bakersfield, California + 23 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "North Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05030311"
    }
  ]
}