{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Interferon+Beta-1a&page=5",
    "query": {
      "intervention": "Interferon Beta-1a",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 107,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Interferon+Beta-1a&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Interferon+Beta-1a&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T21:39:28.309Z",
  "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": "NCT00819000",
      "title": "Therapy Optimization in Multiple Sclerosis (MS)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Glatiramer Acetate, IFN-beta 1a (IM), IFN-beta 1a (Subcutaneous), and IFN-beta 1b",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Teva Neuroscience, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2878,
      "start_date": "2008-12",
      "completion_date": "2013-01",
      "has_results": false,
      "last_update_posted_date": "2013-01-29",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 3,
      "location_summary": "Swartz Creek, Michigan • Columbus, Ohio • Carnegie, Pennsylvania",
      "locations": [
        {
          "city": "Swartz Creek",
          "state": "Michigan"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Carnegie",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00819000"
    },
    {
      "nct_id": "NCT02283853",
      "title": "Phase 3 Efficacy and Safety Study of BG00012 in Pediatric Participants With Relapsing-Remitting Multiple Sclerosis (RRMS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing-Remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "dimethyl fumarate",
          "type": "DRUG"
        },
        {
          "name": "Interferon β-1a",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "10 Years to 17 Years"
      },
      "enrollment_count": 156,
      "start_date": "2014-08-28",
      "completion_date": "2025-07-08",
      "has_results": true,
      "last_update_posted_date": "2026-05-19",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts • Charlottesville, Virginia",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02283853"
    },
    {
      "nct_id": "NCT01119677",
      "title": "A Study of Avonex to Determine the Effects of Dose Titration on the Incidence of Flu Like Symptoms in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Avonex",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "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": 120,
      "start_date": "2010-05-05",
      "completion_date": "2010-10-23",
      "has_results": false,
      "last_update_posted_date": "2017-11-17",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01119677"
    },
    {
      "nct_id": "NCT00210301",
      "title": "Combination Therapy (Provigil + Avonex) to Treat Cognitive Problems in MS",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Relapsing-Remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Provigil (modafinil)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Institute for Clinical Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "20 Years to 65 Years"
      },
      "enrollment_count": 60,
      "start_date": "2003-01",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2006-09-07",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00210301"
    },
    {
      "nct_id": "NCT00463710",
      "title": "Effect of Interferon Beta-1a (Avonex®) on Changes of Non-conventional MRI Measures in Patients With MS",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Avonex® monotherapy (6.0 MIU administered i.m. each week)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "State University of New York at Buffalo",
      "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": 150,
      "start_date": "2005-06",
      "completion_date": "2006-09",
      "has_results": false,
      "last_update_posted_date": "2020-12-28",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00463710"
    },
    {
      "nct_id": "NCT04183491",
      "title": "Pharmacodynamic Biomarkers to Support Biosimilar Development: Interferon Beta-1A Products",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Subjects",
        "Pharmacokinetics",
        "Pharmacodynamics"
      ],
      "interventions": [
        {
          "name": "Interferon beta-1a",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Peginterferon beta-1a",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Food and Drug Administration (FDA)",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 84,
      "start_date": "2020-02-28",
      "completion_date": "2021-01-26",
      "has_results": true,
      "last_update_posted_date": "2024-04-22",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 1,
      "location_summary": "West Bend, Wisconsin",
      "locations": [
        {
          "city": "West Bend",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04183491"
    },
    {
      "nct_id": "NCT00206648",
      "title": "An Efficacy and Safety Comparison Study of Two Marketed Drugs in Patients With Relapsing-remitting MS",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Betaferon/Betaseron",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 271,
      "start_date": "2003-03",
      "completion_date": "2005-10",
      "has_results": false,
      "last_update_posted_date": "2014-12-31",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 51,
      "location_summary": "Tucson, Arizona • Berkeley, California • Irvine, California + 46 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00206648"
    },
    {
      "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": "2026-10-10T21:39:28.309Z",
      "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": "2026-10-10T21:39:28.309Z",
      "location_count": 1,
      "location_summary": "Kansas City, Missouri",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00037115"
    },
    {
      "nct_id": "NCT00110396",
      "title": "Rebif New Formulation (RNF) in Relapsing Forms of Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Interferon-beta-1a FBS-free/HSA-free",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "EMD Serono",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 260,
      "start_date": "2005-01",
      "completion_date": "2007-04",
      "has_results": true,
      "last_update_posted_date": "2015-07-15",
      "last_synced_at": "2026-10-10T21:39:28.309Z",
      "location_count": 1,
      "location_summary": "Rockland, Massachusetts",
      "locations": [
        {
          "city": "Rockland",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00110396"
    }
  ]
}