{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Allakos+Inc.",
    "query": {
      "sponsor": "Allakos Inc."
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 16,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Allakos+Inc.&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T04:01:19.456Z",
  "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": "NCT04322604",
      "title": "A Study to Assess AK002 in Eosinophilic Gastritis and/or Eosinophilic Duodenitis (Formerly Referred to as Eosinophilic Gastroenteritis)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Eosinophilic Gastritis",
        "Eosinophilic Duodenitis"
      ],
      "interventions": [
        {
          "name": "lirentelimab (AK002)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 181,
      "start_date": "2020-06-18",
      "completion_date": "2022-01-12",
      "has_results": true,
      "last_update_posted_date": "2024-01-02",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 60,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Gilbert, Arizona + 54 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04322604"
    },
    {
      "nct_id": "NCT04856891",
      "title": "A Study of Lirentelimab (AK002) in Patients With Active Eosinophilic Duodenitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Eosinophilic Duodenitis",
        "Eosinophilic Gastroenteritis"
      ],
      "interventions": [
        {
          "name": "AK002",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 94,
      "start_date": "2021-05-20",
      "completion_date": "2023-01-09",
      "has_results": true,
      "last_update_posted_date": "2024-01-02",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 39,
      "location_summary": "Birmingham, Alabama • Gilbert, Arizona • Chula Vista, California + 35 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Chula Vista",
          "state": "California"
        },
        {
          "city": "Lomita",
          "state": "California"
        },
        {
          "city": "Wheat Ridge",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04856891"
    },
    {
      "nct_id": "NCT02734849",
      "title": "Study to Evaluate Multiple Doses in Patients With Nasal Polyposis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Nasal Polyposis"
      ],
      "interventions": [
        {
          "name": "AK001 low dose",
          "type": "DRUG"
        },
        {
          "name": "AK001 high dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2016-04",
      "completion_date": "2018-01",
      "has_results": true,
      "last_update_posted_date": "2021-01-25",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 5,
      "location_summary": "Chicago, Illinois • Boston, Massachusetts • Pittsburgh, Pennsylvania + 2 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Houston",
          "state": "Texas"
        },
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02734849"
    },
    {
      "nct_id": "NCT05528861",
      "title": "A Study to Assess Subcutaneous Lirentelimab (AK002) in Chronic Spontaneous Urticaria",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Spontaneous Urticaria"
      ],
      "interventions": [
        {
          "name": "Lirentelimab (AK002)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 127,
      "start_date": "2022-10-26",
      "completion_date": "2024-04-18",
      "has_results": true,
      "last_update_posted_date": "2024-09-27",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 51,
      "location_summary": "Birmingham, Alabama • Cullman, Alabama • Phoenix, Arizona + 44 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05528861"
    },
    {
      "nct_id": "NCT03664960",
      "title": "An Extension Study of AK002 in Patients With Eosinophilic Gastritis and/or Eosinophilic Duodenitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Eosinophilic Gastritis",
        "Eosinophilic Gastroenteritis",
        "Eosinophilic Duodenitis"
      ],
      "interventions": [
        {
          "name": "AK002",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 58,
      "start_date": "2018-11-14",
      "completion_date": "2021-11-02",
      "has_results": true,
      "last_update_posted_date": "2024-02-28",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 17,
      "location_summary": "Phoenix, Arizona • Scottsdale, Arizona • Ventura, California + 14 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Ventura",
          "state": "California"
        },
        {
          "city": "New Port Richey",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03664960"
    },
    {
      "nct_id": "NCT05155085",
      "title": "A Study to Assess Subcutaneous Lirentelimab (AK002) in Atopic Dermatitis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Atopic Dermatitis"
      ],
      "interventions": [
        {
          "name": "AK002",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 131,
      "start_date": "2022-06-27",
      "completion_date": "2024-04-17",
      "has_results": true,
      "last_update_posted_date": "2024-10-15",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 40,
      "location_summary": "Birmingham, Alabama • Cullman, Alabama • Gilbert, Arizona + 33 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Canoga Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05155085"
    },
    {
      "nct_id": "NCT04322708",
      "title": "A Study of Lirentelimab (AK002) in Patients With Active Eosinophilic Esophagitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Eosinophilic Esophagitis"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "lirentelimab (AK002)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "12 Years to 80 Years"
      },
      "enrollment_count": 277,
      "start_date": "2020-07-06",
      "completion_date": "2022-01-18",
      "has_results": true,
      "last_update_posted_date": "2024-01-02",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 73,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Gilbert, Arizona + 62 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04322708"
    },
    {
      "nct_id": "NCT02563938",
      "title": "A Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of AK001",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Atopy"
      ],
      "interventions": [
        {
          "name": "AK001",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 34,
      "start_date": "2015-09",
      "completion_date": "2016-03",
      "has_results": false,
      "last_update_posted_date": "2016-06-29",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 1,
      "location_summary": "Cypress, California",
      "locations": [
        {
          "city": "Cypress",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02563938"
    },
    {
      "nct_id": "NCT06577116",
      "title": "Open-Label Extension Study for Subjects With H1 Antihistamine Refractory Chronic Spontaneous Urticaria Completing Study AK006-001",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Chronic Spontaneous Urticaria"
      ],
      "interventions": [
        {
          "name": "AK006 IV",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 29,
      "start_date": "2024-08-28",
      "completion_date": "2025-05-21",
      "has_results": false,
      "last_update_posted_date": "2025-08-27",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 9,
      "location_summary": "Birmingham, Alabama • Bakersfield, California • Upland, California + 6 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Bakersfield",
          "state": "California"
        },
        {
          "city": "Upland",
          "state": "California"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06577116"
    },
    {
      "nct_id": "NCT05152563",
      "title": "A Study to Assess Subcutaneous AK002 in Eosinophilic Gastritis and/or Eosinophilic Duodenitis",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Eosinophilic Gastritis",
        "Eosinophilic Duodenitis"
      ],
      "interventions": [
        {
          "name": "AK002",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Allakos Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 0,
      "start_date": "2021-12",
      "completion_date": "2022-01-20",
      "has_results": false,
      "last_update_posted_date": "2023-03-03",
      "last_synced_at": "2026-10-07T04:01:19.456Z",
      "location_count": 76,
      "location_summary": "Birmingham, Alabama • Gilbert, Arizona • Phoenix, Arizona + 70 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Chula Vista",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05152563"
    }
  ]
}