{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Interferon+beta-1a",
    "query": {
      "intervention": "Interferon beta-1a"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 107,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Interferon+beta-1a&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T13:33:21.708Z",
  "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": "NCT00906399",
      "title": "Efficacy and Safety Study of Peginterferon Beta-1a in Participants With Relapsing Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "BIIB017 (peginterferon beta-1a)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 1516,
      "start_date": "2009-06",
      "completion_date": "2013-10",
      "has_results": true,
      "last_update_posted_date": "2014-09-19",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 12,
      "location_summary": "Phoenix, Arizona • Ponte Vedra Beach, Florida • Atlanta, Georgia + 9 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Ponte Vedra Beach",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Des Moines",
          "state": "Iowa"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00906399"
    },
    {
      "nct_id": "NCT01036165",
      "title": "A Multicenter, Open-label, RebiSmart™ Autoinjector Ease of Use Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "RebiSmart™",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "EMD Serono",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 103,
      "start_date": "2010-01",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2013-08-08",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 1,
      "location_summary": "Rockland, Massachusetts",
      "locations": [
        {
          "city": "Rockland",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01036165"
    },
    {
      "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": "2026-09-03T13:33:21.708Z",
      "location_count": 1,
      "location_summary": "Rockland, Massachusetts",
      "locations": [
        {
          "city": "Rockland",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04032158"
    },
    {
      "nct_id": "NCT00735007",
      "title": "12-week Study to Evaluate RebiSmart™ Suitability for Self Injection in Relapsing Multiple Sclerosis.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Rebif® New Formulation (RNF) using RebiSmartTM",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "EMD Serono",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 106,
      "start_date": "2008-07",
      "completion_date": null,
      "has_results": true,
      "last_update_posted_date": "2013-11-14",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 1,
      "location_summary": "Rockland, Massachusetts",
      "locations": [
        {
          "city": "Rockland",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00735007"
    },
    {
      "nct_id": "NCT00223301",
      "title": "Safety Study of Combination Therapy With Intramuscular Avonex and Oral Cellcept in Patients With Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Mycophenolate Mofetil (cellcept)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "21 Years to 45 Years"
      },
      "enrollment_count": 24,
      "start_date": "2004-07",
      "completion_date": "2007-03",
      "has_results": false,
      "last_update_posted_date": "2013-04-22",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00223301"
    },
    {
      "nct_id": "NCT00112034",
      "title": "AVONEX® Combination Trial - \"ACT\"",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Methotrexate",
          "type": "DRUG"
        },
        {
          "name": "IV methylprednisolone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "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": 350,
      "start_date": "2003-06",
      "completion_date": "2007-05",
      "has_results": false,
      "last_update_posted_date": "2008-05-09",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00112034"
    },
    {
      "nct_id": "NCT00078338",
      "title": "Rebif® Versus Copaxone® in the Treatment of Relapsing Remitting Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Relapsing-remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Rebif®",
          "type": "DRUG"
        },
        {
          "name": "Copaxone®",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "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": 764,
      "start_date": "2004-02-16",
      "completion_date": "2006-11-28",
      "has_results": true,
      "last_update_posted_date": "2018-06-27",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 41,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 36 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00078338"
    },
    {
      "nct_id": "NCT00242268",
      "title": "A Safety Study of Combination Treatment With Avonex and Zocor in Relapsing Remitting Multiple Sclerosis",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Simvastatin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Alabama Neurology Associates, PC",
      "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": 30,
      "start_date": "2005-10",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-12-07",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00242268"
    },
    {
      "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": "2026-09-03T13:33:21.708Z",
      "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": "NCT00211887",
      "title": "Combination Therapy in Patients With Relapsing-Remitting Multiple Sclerosis (MS)CombiRx",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Interferon beta 1-a",
          "type": "DRUG"
        },
        {
          "name": "glatiramer acetate",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Fred Lublin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 1008,
      "start_date": "2005-01",
      "completion_date": "2013-03",
      "has_results": true,
      "last_update_posted_date": "2014-04-03",
      "last_synced_at": "2026-09-03T13:33:21.708Z",
      "location_count": 67,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 55 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00211887"
    }
  ]
}