{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Peginterferon+beta-1a",
    "query": {
      "intervention": "Peginterferon beta-1a"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 17,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Peginterferon+beta-1a&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T13:31:29.418Z",
  "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": "NCT02665221",
      "title": "Single Center, Open Label, Study of Preparation H on Erythema in Relapsing MS Patients Treated With PLEGRIDY",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "No Treatment Arm",
          "type": "OTHER"
        },
        {
          "name": "Topical Preparation H arm",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 30,
      "start_date": "2015-07",
      "completion_date": "2016-09",
      "has_results": true,
      "last_update_posted_date": "2018-01-18",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02665221"
    },
    {
      "nct_id": "NCT03424733",
      "title": "Evaluating the Use of Prednisone to Decrease Pegylated Interferon Beta-1a Side Effects",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Plegridy",
          "type": "DRUG"
        },
        {
          "name": "Prednisone",
          "type": "DRUG"
        },
        {
          "name": "Tylenol Pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Holy Name Medical Center, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2017-09-25",
      "completion_date": "2020-05-31",
      "has_results": false,
      "last_update_posted_date": "2019-08-15",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 1,
      "location_summary": "Teaneck, New Jersey",
      "locations": [
        {
          "city": "Teaneck",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03424733"
    },
    {
      "nct_id": "NCT01911767",
      "title": "Biogen Multiple Sclerosis Pregnancy Exposure Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Exposure During Pregnancy"
      ],
      "interventions": [
        {
          "name": "Dimethyl fumarate",
          "type": "DRUG"
        },
        {
          "name": "Peginterferon beta-1a",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 408,
      "start_date": "2013-10-30",
      "completion_date": "2022-02-10",
      "has_results": false,
      "last_update_posted_date": "2022-06-21",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 1,
      "location_summary": "Cambridge, Massachusetts",
      "locations": [
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01911767"
    },
    {
      "nct_id": "NCT01939002",
      "title": "Characterize Flu-like Symptoms in Relapsing Multiple Sclerosis Patients Transitioning From Non-Pegylated Interferon Beta (IFN-β) Therapies to Peginterferon Beta-1a (BIIB017)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "BIIB017",
          "type": "DRUG"
        },
        {
          "name": "naproxen",
          "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": 251,
      "start_date": "2013-11",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2017-01-25",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 38,
      "location_summary": "Gilbert, Arizona • Phoenix, Arizona • Tucson, Arizona + 34 more",
      "locations": [
        {
          "city": "Gilbert",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Boulder",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01939002"
    },
    {
      "nct_id": "NCT01610310",
      "title": "Peginterferon Beta-1a (BIIB017) Autoinjector Pharmacokinetic Study in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "BIIB017 (peginterferon beta-1a) Pre-filled syringe (PFS)",
          "type": "DEVICE"
        },
        {
          "name": "BIIB017 (peginterferon beta-1a) Autoinjector",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "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": 55,
      "start_date": "2012-06",
      "completion_date": "2012-10",
      "has_results": false,
      "last_update_posted_date": "2014-06-13",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01610310"
    },
    {
      "nct_id": "NCT05688436",
      "title": "A Study to Learn More About The Safety of Diroximel Fumarate (VUMERITY®) in Participants Who Took it During Pregnancy And About the Health of Their Babies",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Diroximel Fumarate",
          "type": "DRUG"
        },
        {
          "name": "Alemtuzumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Fingolimod",
          "type": "DRUG"
        },
        {
          "name": "Glatiramer acetate",
          "type": "DRUG"
        },
        {
          "name": "Interferon beta",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Natalizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ocrelizumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ofatumumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ozanimod",
          "type": "DRUG"
        },
        {
          "name": "Peginterferon beta-1a",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ponesimod",
          "type": "DRUG"
        },
        {
          "name": "Siponimod",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 49 Years · Female only"
      },
      "enrollment_count": 1178,
      "start_date": "2021-09-24",
      "completion_date": "2031-01-17",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 1,
      "location_summary": "Eden Prairie, Minnesota",
      "locations": [
        {
          "city": "Eden Prairie",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05688436"
    },
    {
      "nct_id": "NCT03870763",
      "title": "Study to Evaluate the Efficacy and Safety of Dimethyl Fumarate (Tecfidera) and Peginterferon Beta-1a (Plegridy) for the Treatment of Relapsing-Remitting Multiple Sclerosis in Pediatric Participants",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Dimethyl Fumarate",
          "type": "DRUG"
        },
        {
          "name": "Peginterferon Beta-1a",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 11,
      "start_date": "2019-03-19",
      "completion_date": "2022-07-21",
      "has_results": true,
      "last_update_posted_date": "2023-06-15",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 1,
      "location_summary": "Raleigh, North Carolina",
      "locations": [
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03870763"
    },
    {
      "nct_id": "NCT04860518",
      "title": "Human Intravenous Interferon Beta-Ia Safety and Preliminary Efficacy in Hospitalized Subjects With COVID-19",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "IFN beta-1a",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Faron Pharmaceuticals Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2021-08-23",
      "completion_date": "2022-04-04",
      "has_results": true,
      "last_update_posted_date": "2023-07-21",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 4,
      "location_summary": "Aurora, Colorado • Boston, Massachusetts • Newton, Massachusetts + 1 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Newton",
          "state": "Massachusetts"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04860518"
    },
    {
      "nct_id": "NCT03535298",
      "title": "Determining the Effectiveness of earLy Intensive Versus Escalation Approaches for RRMS",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Early Highly Effective Therapies Group",
          "type": "DRUG"
        },
        {
          "name": "Escalation Therapies Group",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The Cleveland Clinic",
      "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": 800,
      "start_date": "2019-01-03",
      "completion_date": "2027-07-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 15,
      "location_summary": "Aurora, Colorado • Minneapolis, Minnesota • Rochester, Minnesota + 11 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03535298"
    },
    {
      "nct_id": "NCT03500328",
      "title": "Traditional Versus Early Aggressive Therapy for Multiple Sclerosis Trial",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Natalizumab/natalizumab-sztn, Alemtuzumab, Ocrelizumab, Rituximab/rituximab-arrx/rituximab-abbs/rituximab-pvvr, Cladribine, Ofatumumab, Ublituximab-xiiy, Ocrelizumab and hyaluronidase-ocsq",
          "type": "OTHER"
        },
        {
          "name": "Glatiramer acetate, Interferons (intramuscular, subcutaneous, pegylated) Teriflunomide, Fumarates (dimethyl, diroximel, monomethyl) Fingolimod, Siponimod, Ozanimod, Ponesimod",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "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": 900,
      "start_date": "2018-05-02",
      "completion_date": "2026-09",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-09-02T13:31:29.418Z",
      "location_count": 47,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 38 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Carmichael",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03500328"
    }
  ]
}