{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?page=9&sponsor=Biogen",
    "query": {
      "sponsor": "Biogen",
      "page": 9
    },
    "page_size": 10
  },
  "pagination": {
    "page": 9,
    "page_size": 10,
    "total_count": 463,
    "total_pages": 47,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?page=10&sponsor=Biogen&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?page=8&sponsor=Biogen&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T19:05:58.506Z",
  "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": "NCT05058950",
      "title": "An Observational Study Using Multimodal Sensors to Measure Cognitive Health in Adults and Distinguish Mild Cognitive Impairment From Normal Aging",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Mild Cognitive Impairment",
        "Normal Aging"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "86 Years",
        "sex": "ALL",
        "summary": "21 Years to 86 Years"
      },
      "enrollment_count": 22720,
      "start_date": "2021-09-20",
      "completion_date": "2023-09-19",
      "has_results": false,
      "last_update_posted_date": "2023-09-21",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05058950"
    },
    {
      "nct_id": "NCT01703988",
      "title": "An Open-label Safety, Tolerability and Dose-Range Finding Study of Multiple Doses of Nusinersen (ISIS 396443) in Participants With Spinal Muscular Atrophy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Spinal Muscular Atrophy"
      ],
      "interventions": [
        {
          "name": "Nusinersen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "15 Years",
        "sex": "ALL",
        "summary": "2 Years to 15 Years"
      },
      "enrollment_count": 34,
      "start_date": "2012-10-31",
      "completion_date": "2015-01-31",
      "has_results": true,
      "last_update_posted_date": "2021-04-13",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 4,
      "location_summary": "Boston, Massachusetts • New York, New York • Dallas, Texas + 1 more",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01703988"
    },
    {
      "nct_id": "NCT00660959",
      "title": "Multicenter, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of Oral Lixivaptan Capsules in Subject With Euvolemic Hyponatremia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Hyponatremia With Normal Extracellular Fluid Volume"
      ],
      "interventions": [
        {
          "name": "lixivaptan",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "CardioKine Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 106,
      "start_date": "2008-04",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2011-06-28",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 38,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Los Angeles, California + 32 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Roseville",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00660959"
    },
    {
      "nct_id": "NCT02459886",
      "title": "Single-Ascending Dose Study of BIIB054 in Healthy Participants and Early Parkinson's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Parkinson's Disease",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "BIIB054",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 66,
      "start_date": "2015-07-01",
      "completion_date": "2017-11-20",
      "has_results": false,
      "last_update_posted_date": "2019-08-08",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 9,
      "location_summary": "Washington D.C., District of Columbia • Hallandale, Florida • Oviedo, Florida + 6 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Hallandale",
          "state": "Florida"
        },
        {
          "city": "Oviedo",
          "state": "Florida"
        },
        {
          "city": "Evansville",
          "state": "Indiana"
        },
        {
          "city": "Farmington Hills",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02459886"
    },
    {
      "nct_id": "NCT02269930",
      "title": "Study to Evaluate the Pharmacokinetic Profiles of BIIB017 (Peginterferon Beta-1a) and Rebif® (Interferon Beta-1a) in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "peginterferon beta-1a",
          "type": "DRUG"
        },
        {
          "name": "Rebif",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 30,
      "start_date": "2014-10",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-02-02",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 1,
      "location_summary": "Evansville, Indiana",
      "locations": [
        {
          "city": "Evansville",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02269930"
    },
    {
      "nct_id": "NCT00472992",
      "title": "Pregnancy Exposure Registry for Tysabri®",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Crohn's Disease",
        "Prenatal Exposure",
        "Multiple Sclerosis",
        "Pregnancy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 376,
      "start_date": "2007-01",
      "completion_date": "2012-07",
      "has_results": false,
      "last_update_posted_date": "2014-08-11",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 1,
      "location_summary": "Morgantown, West Virginia",
      "locations": [
        {
          "city": "Morgantown",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00472992"
    },
    {
      "nct_id": "NCT02477800",
      "title": "221AD301 Phase 3 Study of Aducanumab (BIIB037) in Early Alzheimer's Disease",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Alzheimer's Disease"
      ],
      "interventions": [
        {
          "name": "Aducanumab (BIIB037)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "50 Years to 85 Years"
      },
      "enrollment_count": 1653,
      "start_date": "2015-08-13",
      "completion_date": "2019-08-08",
      "has_results": true,
      "last_update_posted_date": "2021-09-02",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 59,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Fullerton, California + 52 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "Laguna Hills",
          "state": "California"
        },
        {
          "city": "Lomita",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02477800"
    },
    {
      "nct_id": "NCT02917187",
      "title": "A Phase 2a Study of BIIB074 in the Treatment of Erythromelalgia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Primary Inherited Erythromelalgia"
      ],
      "interventions": [
        {
          "name": "BIIB074",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2016-09-09",
      "completion_date": "2017-01-05",
      "has_results": false,
      "last_update_posted_date": "2018-01-10",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 5,
      "location_summary": "Birmingham, Alabama • New London, Connecticut • Philadelphia, Pennsylvania + 2 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "New London",
          "state": "Connecticut"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Plano",
          "state": "Texas"
        },
        {
          "city": "Morgantown",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02917187"
    },
    {
      "nct_id": "NCT05160558",
      "title": "A Pharmacokinetics and Safety Study of BIIB132 in Adults With Spinocerebellar Ataxia 3",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Spinocerebellar Ataxia Type 3"
      ],
      "interventions": [
        {
          "name": "BIIB132",
          "type": "DRUG"
        },
        {
          "name": "BIIB132-Matching Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 8,
      "start_date": "2022-02-02",
      "completion_date": "2023-07-25",
      "has_results": false,
      "last_update_posted_date": "2023-08-04",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 10,
      "location_summary": "Los Angeles, California • San Francisco, California • Gainesville, Florida + 7 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05160558"
    },
    {
      "nct_id": "NCT02658916",
      "title": "Extension Study of BIIB092 in Participants With Progressive Supranuclear Palsy (PSP) Who Participated in CN002003",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Supranuclear Palsy, Progressive"
      ],
      "interventions": [
        {
          "name": "BIIB092",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "41 Years",
        "maximum_age": "86 Years",
        "sex": "ALL",
        "summary": "41 Years to 86 Years"
      },
      "enrollment_count": 47,
      "start_date": "2016-02-22",
      "completion_date": "2020-03-31",
      "has_results": false,
      "last_update_posted_date": "2020-05-18",
      "last_synced_at": "2026-10-17T19:05:58.506Z",
      "location_count": 13,
      "location_summary": "Birmingham, Alabama • La Jolla, California • Los Angeles, California + 10 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02658916"
    }
  ]
}