{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Avonex+%28Interferon+beta+1a%29&page=2",
    "query": {
      "intervention": "Avonex (Interferon beta 1a)",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 106,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Avonex+%28Interferon+beta+1a%29&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Avonex+%28Interferon+beta+1a%29&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-04T08:28:11.078Z",
  "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": "NCT05658497",
      "title": "Pregnancy Exposure Registry for Vumerity (Diroximel Fumarate)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Diroximel Fumarate",
          "type": "DRUG"
        },
        {
          "name": "Avonex",
          "type": "DRUG"
        },
        {
          "name": "Tysabri",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Dimethyl Fumarate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 908,
      "start_date": "2023-10-27",
      "completion_date": "2032-07-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-11",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 2,
      "location_summary": "Aurora, Colorado • Durham, North Carolina",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05658497"
    },
    {
      "nct_id": "NCT04834401",
      "title": "Effect of Disease Modifying Therapy on Antibody Response to COVID19 Vaccination in Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Covid19"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "St. Barnabas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 45,
      "start_date": "2021-03-22",
      "completion_date": "2022-05-17",
      "has_results": false,
      "last_update_posted_date": "2022-08-18",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 1,
      "location_summary": "Livingston, New Jersey",
      "locations": [
        {
          "city": "Livingston",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04834401"
    },
    {
      "nct_id": "NCT01623596",
      "title": "Evaluation of Patient Retention of Fingolimod vs. Currently Approved Disease Modifying Therapy in Patients With Relapsing Remitting Multiple Sclerosis.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Relapsing Remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Fingolimod",
          "type": "DRUG"
        },
        {
          "name": "Disease Modifying therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "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": 881,
      "start_date": "2012-06-08",
      "completion_date": "2015-07-13",
      "has_results": true,
      "last_update_posted_date": "2021-01-05",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 122,
      "location_summary": "Cullman, Alabama • Phoenix, Arizona • Sun City, Arizona + 111 more",
      "locations": [
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sun City",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Sherwood",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01623596"
    },
    {
      "nct_id": "NCT01332019",
      "title": "Long-Term Safety and Efficacy Study of Peginterferon Beta-1a",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "peginterferon beta-1a",
          "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": 1077,
      "start_date": "2011-04",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2017-01-13",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 7,
      "location_summary": "Atlanta, Georgia • Lexington, Kentucky • Baltimore, Maryland + 4 more",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Raleigh",
          "state": "North Carolina"
        },
        {
          "city": "Akron",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01332019"
    },
    {
      "nct_id": "NCT02125578",
      "title": "A Multiple Dose Safety Study of PEG-IFN in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "BIIB017 (PEGylated Interferon Beta-1a)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "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": 69,
      "start_date": "2008-03",
      "completion_date": "2008-05",
      "has_results": false,
      "last_update_posted_date": "2014-04-29",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02125578"
    },
    {
      "nct_id": "NCT02735707",
      "title": "Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired Pneumonia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Community-acquired Pneumonia, Influenza, COVID-19"
      ],
      "interventions": [
        {
          "name": "Ceftriaxone",
          "type": "DRUG"
        },
        {
          "name": "Moxifloxacin or Levofloxacin",
          "type": "DRUG"
        },
        {
          "name": "Piperacillin-tazobactam",
          "type": "DRUG"
        },
        {
          "name": "Ceftaroline",
          "type": "DRUG"
        },
        {
          "name": "Amoxicillin-clavulanate",
          "type": "DRUG"
        },
        {
          "name": "Standard course macrolide",
          "type": "DRUG"
        },
        {
          "name": "Extended course macrolide",
          "type": "DRUG"
        },
        {
          "name": "No systemic corticosteroid",
          "type": "OTHER"
        },
        {
          "name": "Fixed-duration Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Shock-dependent hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "Fixed-duration higher dose Hydrocortisone",
          "type": "DRUG"
        },
        {
          "name": "No antiviral agent for influenza",
          "type": "OTHER"
        },
        {
          "name": "Five-days oseltamivir",
          "type": "DRUG"
        },
        {
          "name": "Ten-days oseltamivir",
          "type": "DRUG"
        },
        {
          "name": "No antiviral agent for COVID-19",
          "type": "OTHER"
        },
        {
          "name": "Lopinavir / Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine + lopinavir/ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Ivermectin",
          "type": "DRUG"
        },
        {
          "name": "No immune modulation for COVID-19",
          "type": "OTHER"
        },
        {
          "name": "Interferon beta-1a",
          "type": "DRUG"
        },
        {
          "name": "Anakinra",
          "type": "DRUG"
        },
        {
          "name": "Tocilizumab",
          "type": "DRUG"
        },
        {
          "name": "Sarilumab",
          "type": "DRUG"
        },
        {
          "name": "Local standard venous thromboprophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Therapeutic dose anticoagulation",
          "type": "DRUG"
        },
        {
          "name": "Conventional low dose thromboprophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Intermediate dose thromboprophylaxis",
          "type": "DRUG"
        },
        {
          "name": "Continuation of therapeutic dose anticoagulation",
          "type": "DRUG"
        },
        {
          "name": "No immunoglobulin",
          "type": "OTHER"
        },
        {
          "name": "Convalescent plasma",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Delayed administration of convalescent plasma",
          "type": "BIOLOGICAL"
        },
        {
          "name": "No vitamin C",
          "type": "OTHER"
        },
        {
          "name": "Vitamin C",
          "type": "DRUG"
        },
        {
          "name": "No antiplatelet",
          "type": "OTHER"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "P2Y12 inhibitor",
          "type": "DRUG"
        },
        {
          "name": "No simvastatin",
          "type": "OTHER"
        },
        {
          "name": "Simvastatin",
          "type": "DRUG"
        },
        {
          "name": "Eritoran",
          "type": "DRUG"
        },
        {
          "name": "Apremilast",
          "type": "DRUG"
        },
        {
          "name": "Clinician-preferred mechanical ventilation strategy",
          "type": "PROCEDURE"
        },
        {
          "name": "Protocolised mechanical ventilation strategy",
          "type": "PROCEDURE"
        },
        {
          "name": "No renin-angiotensin system inhibitor",
          "type": "OTHER"
        },
        {
          "name": "Angiotensin converting enzyme inhibitor",
          "type": "DRUG"
        },
        {
          "name": "Angiotensin Receptor Blockers",
          "type": "DRUG"
        },
        {
          "name": "ARB + DMX-200",
          "type": "DRUG"
        },
        {
          "name": "No cysteamine",
          "type": "OTHER"
        },
        {
          "name": "Cysteamine",
          "type": "DRUG"
        },
        {
          "name": "Fixed-duration dexamethasone",
          "type": "DRUG"
        },
        {
          "name": "Baloxavir Marboxil",
          "type": "DRUG"
        },
        {
          "name": "Five-days oseltamivir + baloxavir marboxil",
          "type": "DRUG"
        },
        {
          "name": "Ten-days oseltamivir + baloxavir marboxil",
          "type": "DRUG"
        },
        {
          "name": "No endothelial modulator",
          "type": "OTHER"
        },
        {
          "name": "Imatinib",
          "type": "DRUG"
        },
        {
          "name": "No Immune Modulator for Influenza",
          "type": "OTHER"
        },
        {
          "name": "Baricitinib",
          "type": "DRUG"
        },
        {
          "name": "Nirmatrelvir/ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Remdesivir",
          "type": "DRUG"
        },
        {
          "name": "Nirmatrelvir/ritonavir + remdesivir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "BIOLOGICAL",
        "PROCEDURE"
      ],
      "sponsor": "UMC Utrecht",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20000,
      "start_date": "2016-04-11",
      "completion_date": "2028-02",
      "has_results": false,
      "last_update_posted_date": "2024-07-12",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 11,
      "location_summary": "Jacksonville, Florida • Augusta, Georgia • Chicago, Illinois + 8 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Augusta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02735707"
    },
    {
      "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": "2026-10-04T08:28:11.078Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00242268"
    },
    {
      "nct_id": "NCT00099489",
      "title": "Safety and Efficacy of Avonex in Subjects With Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Inflammatory Demyelinating Polyradiculoneuropathy"
      ],
      "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": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 67,
      "start_date": "2004-02",
      "completion_date": "2006-02",
      "has_results": false,
      "last_update_posted_date": "2010-03-05",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 13,
      "location_summary": "Phoenix, Arizona • Scottsdale, Arizona • Jacksonville, Florida + 9 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00099489"
    },
    {
      "nct_id": "NCT01864148",
      "title": "Study to Assess the Efficacy, Safety, Tolerability, and Pharmacokinetics of BIIB033 in Participants With Relapsing Forms of Multiple Sclerosis When Used Concurrently With Avonex",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "BIIB033",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Avonex",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "58 Years",
        "sex": "ALL",
        "summary": "18 Years to 58 Years"
      },
      "enrollment_count": 419,
      "start_date": "2013-08",
      "completion_date": "2016-03",
      "has_results": true,
      "last_update_posted_date": "2017-05-03",
      "last_synced_at": "2026-10-04T08:28:11.078Z",
      "location_count": 11,
      "location_summary": "Cullman, Alabama • Phoenix, Arizona • Raleigh, California + 8 more",
      "locations": [
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Raleigh",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Centennial",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01864148"
    },
    {
      "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": "2026-10-04T08:28:11.078Z",
      "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"
    }
  ]
}