{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=AMG+531",
    "query": {
      "intervention": "AMG 531"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 26,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=AMG+531&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T10:35:32.634Z",
  "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": "NCT04638829",
      "title": "Safety and Treatment Satisfaction in Adults With Chronic ITP After Switching to Avatrombopag From Eltrombopag or Romiplostim",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Immune Thrombocytopenia"
      ],
      "interventions": [
        {
          "name": "Avatrombopag Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sobi, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2021-03-15",
      "completion_date": "2024-01-03",
      "has_results": true,
      "last_update_posted_date": "2025-01-16",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 20,
      "location_summary": "Tucson, Arizona • Whittier, California • Washington D.C., District of Columbia + 17 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Whittier",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Ocala",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04638829"
    },
    {
      "nct_id": "NCT01143038",
      "title": "Interventional Study in Adults With Immune Thrombocytopenia Purpura (ITP) Receiving Romiplostim",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Idiopathic Thrombocytopenic Purpura"
      ],
      "interventions": [
        {
          "name": "Romiplostim",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 75,
      "start_date": "2010-11-30",
      "completion_date": "2013-12-26",
      "has_results": true,
      "last_update_posted_date": "2022-09-21",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 8,
      "location_summary": "Anaheim, California • Orange, California • Boynton Beach, Florida + 5 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Boynton Beach",
          "state": "Florida"
        },
        {
          "city": "Bethesda",
          "state": "Maryland"
        },
        {
          "city": "Hickory",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01143038"
    },
    {
      "nct_id": "NCT01676961",
      "title": "Romiplostim in Increasing Low Platelet Counts in Patients With Multiple Myeloma Receiving Chemotherapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Refractory Multiple Myeloma",
        "Stage I Multiple Myeloma",
        "Stage II Multiple Myeloma",
        "Stage III Multiple Myeloma",
        "Thrombocytopenia"
      ],
      "interventions": [
        {
          "name": "romiplostim",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5,
      "start_date": "2013-01",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2018-10-15",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01676961"
    },
    {
      "nct_id": "NCT02052882",
      "title": "Study of Romiplostim for Chemotherapy Induced Thrombocytopenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Isolated Chemotherapy-induced Thrombocytopenia"
      ],
      "interventions": [
        {
          "name": "romiplostim",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 60,
      "start_date": "2014-01-30",
      "completion_date": "2023-11-13",
      "has_results": true,
      "last_update_posted_date": "2024-12-27",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 6,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 3 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02052882"
    },
    {
      "nct_id": "NCT01071954",
      "title": "A Study Evaluating the Safety and Efficacy of Long-term Dosing of Romiplostim in Thrombocytopenic Pediatric Patients With Immune (Idiopathic) Thrombocytopenia Purpura",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Thrombocytopenia in Pediatric Subjects With Immune Idiopathic Thrombocytopenic Purpura ITP"
      ],
      "interventions": [
        {
          "name": "Romiplostim",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": 66,
      "start_date": "2009-12-30",
      "completion_date": "2017-01-12",
      "has_results": true,
      "last_update_posted_date": "2020-01-18",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 24,
      "location_summary": "Orange, California • San Diego, California • Washington D.C., District of Columbia + 20 more",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01071954"
    },
    {
      "nct_id": "NCT01974232",
      "title": "A Retrospective Chart Review of Thirty Three Children Who Have Received Clinical Treatment With Either Romiplostim or Eltrombopag From 2009-2013",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Immune Thrombocytopenia"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Months",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "19 Months to 21 Years"
      },
      "enrollment_count": 33,
      "start_date": "2012-01",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2017-02-01",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01974232"
    },
    {
      "nct_id": "NCT04673266",
      "title": "Using Romiplostim to Treat Low Platelet Counts During Chemotherapy in People With Lymphoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lymphoma Patients",
        "Thrombocytopenia"
      ],
      "interventions": [
        {
          "name": "Romiplostim",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 11,
      "start_date": "2020-12-14",
      "completion_date": "2026-04-07",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 7,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04673266"
    },
    {
      "nct_id": "NCT00413283",
      "title": "Dose/ Schedule Finding Trial of Romiplostim for Chemotherapy-Induced Thrombocytopenia (CIT) in Non-Small Cell Lung Cancer (NSCLC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Lung Cancer",
        "Chemotherapy-Induced Thrombocytopenia",
        "Non-Small Cell Lung Cancer",
        "Cancer",
        "Lung Neoplasms",
        "Oncology",
        "Solid Tumors",
        "Thrombocytopenia"
      ],
      "interventions": [
        {
          "name": "Romiplostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Gemcitabine",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 63,
      "start_date": "2006-12",
      "completion_date": "2009-02",
      "has_results": true,
      "last_update_posted_date": "2013-10-24",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 51,
      "location_summary": "Glendale, Arizona • Anaheim, California • Los Angeles, California + 22 more",
      "locations": [
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00413283"
    },
    {
      "nct_id": "NCT07001254",
      "title": "UI-Romi-02; Romiplostim Added to Standard of Care for Treatment Naive and Relapsed or Refractory Severe Aplastic Anemia",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Aplastic Anemia"
      ],
      "interventions": [
        {
          "name": "Romiplostim",
          "type": "DRUG"
        },
        {
          "name": "Immunosuppressive therapy (IST)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Anjali Sharathkumar",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "2 Years to 21 Years"
      },
      "enrollment_count": 15,
      "start_date": "2026-08-01",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-19",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07001254"
    },
    {
      "nct_id": "NCT03362177",
      "title": "Study of Romiplostim for Chemotherapy-induced Thrombocytopenia in Adult Subjects With Gastrointestinal, Pancreatic, or Colorectal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chemotherapy-induced Thrombocytopenia"
      ],
      "interventions": [
        {
          "name": "Romiplostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 165,
      "start_date": "2019-09-30",
      "completion_date": "2025-01-09",
      "has_results": true,
      "last_update_posted_date": "2026-02-11",
      "last_synced_at": "2026-09-02T10:35:32.634Z",
      "location_count": 22,
      "location_summary": "Jonesboro, Arkansas • Anaheim, California • Orange, California + 18 more",
      "locations": [
        {
          "city": "Jonesboro",
          "state": "Arkansas"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Grand Junction",
          "state": "Colorado"
        },
        {
          "city": "Orange City",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03362177"
    }
  ]
}