{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypereosinophilic+Syndromes&page=3",
    "query": {
      "condition": "Hypereosinophilic Syndromes",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 53,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypereosinophilic+Syndromes&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Hypereosinophilic+Syndromes&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-12T07:35:16.932Z",
  "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": "NCT00017862",
      "title": "Anti-Interleukin-5 Antibody to Treat Hypereosinophilic Syndrome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypereosinophilic Syndrome"
      ],
      "interventions": [
        {
          "name": "SCH55700",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 10,
      "start_date": "2001-06",
      "completion_date": "2003-06",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00017862"
    },
    {
      "nct_id": "NCT06388889",
      "title": "Phase III Long-Term Extension Study With Dexpramipexole",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Eosinophilic Asthma"
      ],
      "interventions": [
        {
          "name": "Dexpramipexole Dihydrochloride",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Areteia Therapeutics",
      "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": 509,
      "start_date": "2024-06-12",
      "completion_date": "2025-12-08",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 23,
      "location_summary": "Bakersfield, California • Northridge, California • Coral Gables, Florida + 13 more",
      "locations": [
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Northridge",
          "state": "California"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Greenacres City",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06388889"
    },
    {
      "nct_id": "NCT02135692",
      "title": "A Phase 3a, Repeat Dose, Open-label, Long-term Safety Study of Mepolizumab in Asthmatic Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Mepolizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "SOC",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 339,
      "start_date": "2014-05-29",
      "completion_date": "2017-10-05",
      "has_results": true,
      "last_update_posted_date": "2019-12-03",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 16,
      "location_summary": "Newport Beach, California • Riverside, California • Rolling Hills Estates, California + 13 more",
      "locations": [
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "Rolling Hills Estates",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02135692"
    },
    {
      "nct_id": "NCT03862157",
      "title": "Azacitidine, Venetoclax, and Pevonedistat in Treating Patients With Newly Diagnosed Acute Myeloid Leukemia",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Acute Myeloid Leukemia",
        "Atypical Chronic Myeloid Leukemia, BCR-ABL1 Negative",
        "Chronic Eosinophilic Leukemia, Not Otherwise Specified",
        "Chronic Myelomonocytic Leukemia",
        "Chronic Neutrophilic Leukemia",
        "Essential Thrombocythemia",
        "Myelodysplastic Syndrome",
        "Myelodysplastic/Myeloproliferative Neoplasm With Ring Sideroblasts and Thrombocytosis",
        "Myelodysplastic/Myeloproliferative Neoplasm, Unclassifiable",
        "Myeloid Neoplasm",
        "Myeloproliferative Neoplasm",
        "Myeloproliferative Neoplasm, Unclassifiable",
        "Overt Primary Myelofibrosis",
        "Polycythemia Vera",
        "Polycythemia Vera, Post-Polycythemic Myelofibrosis Phase",
        "Prefibrotic/Early Primary Myelofibrosis"
      ],
      "interventions": [
        {
          "name": "Azacitidine",
          "type": "DRUG"
        },
        {
          "name": "Pevonedistat",
          "type": "DRUG"
        },
        {
          "name": "Venetoclax",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2019-02-27",
      "completion_date": "2027-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-16",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03862157"
    },
    {
      "nct_id": "NCT01285323",
      "title": "A Study to Evaluate the Efficacy and Safety of Reslizumab in Patients With Eosinophilic Asthma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Eosinophilic Asthma"
      ],
      "interventions": [
        {
          "name": "Reslizumab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Teva Branded Pharmaceutical Products R&D, 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": 464,
      "start_date": "2011-03",
      "completion_date": "2014-04",
      "has_results": true,
      "last_update_posted_date": "2021-11-09",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 15,
      "location_summary": "Mobile, Alabama • Fresno, California • Long Beach, California + 12 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Waterbury",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01285323"
    },
    {
      "nct_id": "NCT05813288",
      "title": "A Study to Assess the Effect of Dexpramipexole in Adolescents and Adults With Severe Eosinophilic Asthma (EXHALE-3)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Eosinophilic Asthma",
        "Asthma; Eosinophilic",
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Dexpramipexole Dihydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Areteia Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "12 Years to 99 Years"
      },
      "enrollment_count": 654,
      "start_date": "2023-03-27",
      "completion_date": "2025-12-08",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 76,
      "location_summary": "Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 64 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Surprise",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05813288"
    },
    {
      "nct_id": "NCT00086658",
      "title": "Intravenous Mepolizumab In Subjects With Hypereosinophilic Syndromes (HES)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hypereosinophilia",
        "Hypereosinophilic Syndrome"
      ],
      "interventions": [
        {
          "name": "mepolizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "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": 86,
      "start_date": "2004-03-23",
      "completion_date": "2006-05-01",
      "has_results": false,
      "last_update_posted_date": "2020-05-05",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 11,
      "location_summary": "San Diego, California • Denver, Colorado • Bethesda, Maryland + 8 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00086658"
    },
    {
      "nct_id": "NCT00109707",
      "title": "A Study of Oral AMN107 in Adults With Chronic Myelogenous Leukemia (CML) or Other Hematologic Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Chronic Myelogenous Leukemia",
        "Acute Lymphoblastic Leukemia (Philadelphia Chromosome Positive)",
        "Hypereosinophilic Syndrome",
        "Systemic Mastocytosis"
      ],
      "interventions": [
        {
          "name": "Nilotinib",
          "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": 507,
      "start_date": "2005-04",
      "completion_date": "2012-09",
      "has_results": true,
      "last_update_posted_date": "2021-06-29",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 24,
      "location_summary": "Duarte, California • Stanford, California • Aurora, Colorado + 20 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00109707"
    },
    {
      "nct_id": "NCT05180357",
      "title": "RANS. Study in Patients With Severe Eosinophilic Asthma and Nasal Polyps.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Severe Eosinophilic Asthma",
        "Nasal Polyps"
      ],
      "interventions": [
        {
          "name": "FASENRA(benralizumab)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "AstraZeneca",
      "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": 273,
      "start_date": "2021-11-23",
      "completion_date": "2022-10-28",
      "has_results": false,
      "last_update_posted_date": "2023-04-19",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 8,
      "location_summary": "Centennial, Colorado • Denver, Colorado • Glendale, New York + 5 more",
      "locations": [
        {
          "city": "Centennial",
          "state": "Colorado"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Glendale",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05180357"
    },
    {
      "nct_id": "NCT07654842",
      "title": "Fasenra: An Asthma Study",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Eosinophilic Asthma",
        "Severe Asthma",
        "Severe Eosinophilic Asthma",
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Budesonide-albuterol",
          "type": "DRUG"
        },
        {
          "name": "Benralizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Endeavor Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2026-07-01",
      "completion_date": "2028-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-15",
      "last_synced_at": "2026-10-12T07:35:16.932Z",
      "location_count": 1,
      "location_summary": "Skokie, Illinois",
      "locations": [
        {
          "city": "Skokie",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07654842"
    }
  ]
}