{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Interferon+beta+type+1a",
    "query": {
      "intervention": "Interferon beta type 1a"
    },
    "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?intervention=Interferon+beta+type+1a&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-05T04:11:35.691Z",
  "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": "NCT00490906",
      "title": "Comparison of Bone Effects With Copaxone and Interferon in Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Low Bone Density"
      ],
      "interventions": [
        {
          "name": "Copaxone",
          "type": "DRUG"
        },
        {
          "name": "Interferon-beta 1a",
          "type": "DRUG"
        },
        {
          "name": "Interferon-beta 1b",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Nancy Hammond, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 60,
      "start_date": "2007-06",
      "completion_date": "2012-12",
      "has_results": false,
      "last_update_posted_date": "2014-01-22",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 2,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00490906"
    },
    {
      "nct_id": "NCT00501943",
      "title": "Neuroprotection With Riluzole Patients With Early Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Avonex (Interferon beta 1a)",
          "type": "DRUG"
        },
        {
          "name": "Riluzole",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 43,
      "start_date": "2006-07",
      "completion_date": "2012-10",
      "has_results": true,
      "last_update_posted_date": "2014-04-09",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00501943"
    },
    {
      "nct_id": "NCT00037115",
      "title": "Induction Therapy With a Single High Dose Bolus of Intravenous Methotrexate With Leucovorin Rescue, Prior to Initiation of AVONEX® Treatment, in Patients Presenting With a First Acute Demyelinating Event.",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Demyelinating Disorders",
        "Multiple Sclerosis",
        "Optic Neuritis",
        "Myelitis",
        "Neuritis"
      ],
      "interventions": [
        {
          "name": "interferon beta 1a",
          "type": "DRUG"
        },
        {
          "name": "methotrexate",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "MidAmerica Neuroscience Research Foundation at Rowe Neurology Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 0,
      "start_date": "2002-05",
      "completion_date": "2002-12",
      "has_results": false,
      "last_update_posted_date": "2018-04-12",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00037115"
    },
    {
      "nct_id": "NCT03958877",
      "title": "A Study to Evaluate the Safety, Tolerability, and Efficacy of BIIB017 (Peginterferon Beta-1a) in Pediatric Participants for the Treatment of Relapsing-Remitting Multiple Sclerosis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "BIIB017 (peginterferon beta-1a)",
          "type": "DRUG"
        },
        {
          "name": "Interferon beta type 1a",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "10 Years to 18 Years"
      },
      "enrollment_count": 152,
      "start_date": "2019-10-18",
      "completion_date": "2027-05-20",
      "has_results": false,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 3,
      "location_summary": "La Jolla, California • Chapel Hill, North Carolina • Norfolk, Virginia",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03958877"
    },
    {
      "nct_id": "NCT01207648",
      "title": "Retrospective Cohort Study of Rebif® Use in Pediatric Multiple Sclerosis (MS) Subjects (REPLAY)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Rebif®",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "EMD Serono",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "Up to 18 Years"
      },
      "enrollment_count": 307,
      "start_date": "2010-07",
      "completion_date": "2011-07",
      "has_results": true,
      "last_update_posted_date": "2015-05-15",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • San Francisco, California • Boston, Massachusetts + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01207648"
    },
    {
      "nct_id": "NCT04032158",
      "title": "Study of Evobrutinib in Participants With Relapsing Multiple Sclerosis (RMS)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing-remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Evobrutinib",
          "type": "DRUG"
        },
        {
          "name": "Avonex®",
          "type": "DRUG"
        },
        {
          "name": "Avonex® matched Placebo",
          "type": "DRUG"
        },
        {
          "name": "Evobrutinib matched Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "EMD Serono Research & Development Institute, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 3,
      "start_date": "2019-08-26",
      "completion_date": "2020-04-16",
      "has_results": true,
      "last_update_posted_date": "2021-08-05",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 1,
      "location_summary": "Rockland, Massachusetts",
      "locations": [
        {
          "city": "Rockland",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04032158"
    },
    {
      "nct_id": "NCT00179478",
      "title": "Long Term Study of Avonex Therapy Following a First Attack of Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multiple Sclerosis",
        "Optic Neuritis",
        "Transverse Myelitis",
        "Acute Brainstem/Cerebellar Syndrome"
      ],
      "interventions": [
        {
          "name": "interferon beta 1a 30 ug IM once weekly",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 155,
      "start_date": "2001-02",
      "completion_date": "2009-03",
      "has_results": true,
      "last_update_posted_date": "2017-09-06",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 20,
      "location_summary": "Derby, Connecticut • Tampa, Florida • Atlanta, Georgia + 16 more",
      "locations": [
        {
          "city": "Derby",
          "state": "Connecticut"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Elk Grove",
          "state": "Illinois"
        },
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00179478"
    },
    {
      "nct_id": "NCT00548405",
      "title": "Comparison of Alemtuzumab and Rebif® Efficacy in Multiple Sclerosis, Study Two",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Alemtuzumab 12 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Alemtuzumab 24 mg",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Interferon beta-1a",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Genzyme, a Sanofi Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 840,
      "start_date": "2007-10",
      "completion_date": "2011-09",
      "has_results": true,
      "last_update_posted_date": "2017-04-17",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 85,
      "location_summary": "Cullman, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 71 more",
      "locations": [
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00548405"
    },
    {
      "nct_id": "NCT00599274",
      "title": "Study to Determine if Avonex and Rebif Work Comparably Well in Subjects With Relapsing Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Interferon beta-1a",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 136,
      "start_date": "2002-08",
      "completion_date": "2003-05",
      "has_results": false,
      "last_update_posted_date": "2010-01-27",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 8,
      "location_summary": "Los Angeles, California • Walnut Creek, California • Shreveport, Louisiana + 5 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Walnut Creek",
          "state": "California"
        },
        {
          "city": "Shreveport",
          "state": "Louisiana"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00599274"
    },
    {
      "nct_id": "NCT00618527",
      "title": "Combination Therapy Using Cellcept and Rebif in RRMS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "mycophenolate mofetil (Cellcept)",
          "type": "DRUG"
        },
        {
          "name": "human interferon beta 1a (Rebif)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Aaron Boster",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 31,
      "start_date": "2006-08",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2012-11-15",
      "last_synced_at": "2026-09-05T04:11:35.691Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00618527"
    }
  ]
}