{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Gossamer+Bio+USA%2C+Inc.",
    "query": {
      "sponsor": "Gossamer Bio USA, Inc."
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 13,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?sponsor=Gossamer+Bio+USA%2C+Inc.&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T22:32:15.325Z",
  "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": "NCT03860896",
      "title": "GB004 in Adult Subjects With Active Ulcerative Colitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Ulcerative Colitis"
      ],
      "interventions": [
        {
          "name": "GB004",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GB004, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "18 Years to 74 Years"
      },
      "enrollment_count": 34,
      "start_date": "2019-04-24",
      "completion_date": "2019-12-17",
      "has_results": false,
      "last_update_posted_date": "2020-01-14",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 1,
      "location_summary": "Monroe, Louisiana",
      "locations": [
        {
          "city": "Monroe",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03860896"
    },
    {
      "nct_id": "NCT07181382",
      "title": "Efficacy and Safety of Seralutinib in Adult Subjects With Pulmonary Hypertension Associated With Interstitial Lung Disease (PH-ILD)",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Hypertension Associated With Interstitial Lung Disease"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Seralutinib",
          "type": "DRUG"
        },
        {
          "name": "Generic Dry Powder Inhaler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "GB002, 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": 480,
      "start_date": "2026-02",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-19",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 3,
      "location_summary": "Fresno, California • Albuquerque, New Mexico • Richmond, Virginia",
      "locations": [
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07181382"
    },
    {
      "nct_id": "NCT05242146",
      "title": "GB5121 in Adult Patients With Relapsed/Refractory CNS Lymphoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "CNS Lymphoma"
      ],
      "interventions": [
        {
          "name": "GB5121",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GB005, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2022-05-24",
      "completion_date": "2023-05-11",
      "has_results": false,
      "last_update_posted_date": "2023-06-13",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 4,
      "location_summary": "Phoenix, Arizona • Jacksonville, Florida • Rochester, Minnesota + 1 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05242146"
    },
    {
      "nct_id": "NCT03473236",
      "title": "Phase 1A Safety Trial of Inhaled PK10571 (GB002)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Safety Issues"
      ],
      "interventions": [
        {
          "name": "GB002",
          "type": "DRUG"
        },
        {
          "name": "Generic Dry Powder Inhaler",
          "type": "DEVICE"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 66,
      "start_date": "2017-09-06",
      "completion_date": "2018-12-03",
      "has_results": true,
      "last_update_posted_date": "2020-06-09",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03473236"
    },
    {
      "nct_id": "NCT04456998",
      "title": "GB002 in Adult Subjects With Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Artery Hypertension"
      ],
      "interventions": [
        {
          "name": "GB002 (seralutinib)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Generic Dry Powder Inhaler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.",
      "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": "2020-11-12",
      "completion_date": "2022-11-01",
      "has_results": true,
      "last_update_posted_date": "2023-11-07",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 36,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Sacramento, California + 31 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Santa Barbara",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04456998"
    },
    {
      "nct_id": "NCT04816604",
      "title": "Open-label Extension Study of GB002 in Adult Subjects With Pulmonary Arterial Hypertension (PAH)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "GB002 (seralutinib)",
          "type": "DRUG"
        },
        {
          "name": "Generic Dry Powder Inhaler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Gossamer Bio USA, 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": 74,
      "start_date": "2021-04-05",
      "completion_date": "2026-09-09",
      "has_results": false,
      "last_update_posted_date": "2026-10-07",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 15,
      "location_summary": "Sacramento, California • Santa Barbara, California • Jacksonville, Florida + 11 more",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Santa Barbara",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Weston",
          "state": "Florida"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04816604"
    },
    {
      "nct_id": "NCT03956862",
      "title": "GB001 in Adult Participants With Chronic Rhinosinusitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Rhinosinusitis Without Nasal Polyps (CRSsNP)",
        "Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)"
      ],
      "interventions": [
        {
          "name": "GB001",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GB001, Inc, a wholly owned subsidiary of Gossamer Bio, Inc.",
      "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": 97,
      "start_date": "2019-05-16",
      "completion_date": "2020-08-05",
      "has_results": true,
      "last_update_posted_date": "2021-08-23",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 29,
      "location_summary": "Tucson, Arizona • Jonesboro, Arkansas • Los Angeles, California + 24 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Roseville",
          "state": "California"
        },
        {
          "city": "Stockton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03956862"
    },
    {
      "nct_id": "NCT03926793",
      "title": "Clinical Study of Inhaled GB002 for Treatment of WHO Group I Pulmonary Arterial Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "GB002",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Generic Dry Powder Inhaler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "GB002, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.",
      "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": 8,
      "start_date": "2020-02-04",
      "completion_date": "2021-05-05",
      "has_results": false,
      "last_update_posted_date": "2021-09-01",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 12,
      "location_summary": "La Jolla, California • Sacramento, California • Aurora, Colorado + 9 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03926793"
    },
    {
      "nct_id": "NCT05934526",
      "title": "Efficacy and Safety of Seralutinib in Adult Subjects With PAH (PROSERA)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Seralutinib",
          "type": "DRUG"
        },
        {
          "name": "Generic Dry Powder Inhaler",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "GB002, Inc.",
      "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": 390,
      "start_date": "2023-12-28",
      "completion_date": "2025-12-22",
      "has_results": false,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 50,
      "location_summary": "Birmingham, Alabama • Fresno, California • Los Angeles, California + 40 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Fresno",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05934526"
    },
    {
      "nct_id": "NCT04060342",
      "title": "GB1275 Monotherapy and in Combination With an Anti-PD1 Antibody in Patients With Specified Advanced Solid Tumors or in Combination With Standard of Care in Patients With Metastatic Pancreatic Adenocarcinoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pancreatic Adenocarcinoma",
        "Esophageal Adenocarcinoma",
        "Esophageal Squamous Cell Carcinoma",
        "Gastric Adenocarcinoma",
        "Gastroesophageal Junction Adenocarcinoma",
        "Triple Negative Breast Cancer",
        "Castration-resistant Prostate Cancer",
        "Microsatellite Stable Colorectal Cancer",
        "Non-small Cell Lung Cancer",
        "Small-cell Lung Cancer",
        "Head and Neck Squamous Cell Carcinoma",
        "Urothelial Carcinoma",
        "Renal Cell Carcinoma",
        "Hepatocellular Carcinoma"
      ],
      "interventions": [
        {
          "name": "GB1275",
          "type": "DRUG"
        },
        {
          "name": "nab-paclitaxel and gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "pembrolizumab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GB006, Inc., a wholly owned subsidiary of Gossamer Bio, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 61,
      "start_date": "2019-08-13",
      "completion_date": "2022-04-11",
      "has_results": false,
      "last_update_posted_date": "2022-08-18",
      "last_synced_at": "2026-10-10T22:32:15.325Z",
      "location_count": 7,
      "location_summary": "San Francisco, California • Aurora, Colorado • St Louis, Missouri + 4 more",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04060342"
    }
  ]
}