{
  "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": "2026-09-07T02:29:55.233Z",
  "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": "NCT02294058",
      "title": "Study of Ozanimod (RPC1063) in Relapsing Multiple Sclerosis (MS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Ozanimod",
          "type": "DRUG"
        },
        {
          "name": "Interferon beta-1a",
          "type": "DRUG"
        },
        {
          "name": "Placebo to ozanimod",
          "type": "DRUG"
        },
        {
          "name": "Placebo to interferon beta-1a",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Celgene",
      "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": 1346,
      "start_date": "2014-12-03",
      "completion_date": "2016-12-22",
      "has_results": true,
      "last_update_posted_date": "2020-11-25",
      "last_synced_at": "2026-09-07T02:29:55.233Z",
      "location_count": 40,
      "location_summary": "Phoenix, Arizona • Tucson, Arizona • Berkeley, California + 35 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02294058"
    },
    {
      "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": "2026-09-07T02:29:55.233Z",
      "location_count": 1,
      "location_summary": "Rockland, Massachusetts",
      "locations": [
        {
          "city": "Rockland",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00110396"
    },
    {
      "nct_id": "NCT01500408",
      "title": "Demonstrate the Bioequivalence of Interferon Beta-1a (INFB) Manufactured by Two Different Processes in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Interferon beta-1a (current approved manufacturing process invloving FBS)",
          "type": "DRUG"
        },
        {
          "name": "Interferon beta-1a (new process, manufactured without FBS)",
          "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": 110,
      "start_date": "2012-01",
      "completion_date": "2012-04",
      "has_results": false,
      "last_update_posted_date": "2012-11-19",
      "last_synced_at": "2026-09-07T02:29:55.233Z",
      "location_count": 1,
      "location_summary": "Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01500408"
    },
    {
      "nct_id": "NCT00811395",
      "title": "Long Term Safety of Teriflunomide When Added to Interferon-Beta or Glatiramer Acetate in Patients With Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Teriflunomide",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for teriflunomide)",
          "type": "DRUG"
        },
        {
          "name": "Interferon-β [IFN-β]",
          "type": "DRUG"
        },
        {
          "name": "Glatiramer Acetate [GA]",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Sanofi",
      "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": 182,
      "start_date": "2007-10",
      "completion_date": "2010-04",
      "has_results": true,
      "last_update_posted_date": "2012-12-31",
      "last_synced_at": "2026-09-07T02:29:55.233Z",
      "location_count": 1,
      "location_summary": "Bridgewater, New Jersey",
      "locations": [
        {
          "city": "Bridgewater",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00811395"
    },
    {
      "nct_id": "NCT01071083",
      "title": "Treatment Interruption of Natalizumab",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Relapsing Remitting Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "natalizumab",
          "type": "DRUG"
        },
        {
          "name": "interferon beta 1-a",
          "type": "DRUG"
        },
        {
          "name": "methylprednisolone",
          "type": "DRUG"
        },
        {
          "name": "IV placebo",
          "type": "OTHER"
        },
        {
          "name": "glatiramer acetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Biogen",
      "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": 175,
      "start_date": "2010-03",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2013-09-19",
      "last_synced_at": "2026-09-07T02:29:55.233Z",
      "location_count": 20,
      "location_summary": "Cullman, Alabama • San Francisco, California • Fort Collins, Colorado + 15 more",
      "locations": [
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Fort Collins",
          "state": "Colorado"
        },
        {
          "city": "Pompano Beach",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01071083"
    },
    {
      "nct_id": "NCT00324506",
      "title": "Safety and Efficacy of Cellcept and Avonex as Combination Treatment in Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "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": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 43,
      "start_date": "2006-05",
      "completion_date": "2009-06",
      "has_results": false,
      "last_update_posted_date": "2013-06-19",
      "last_synced_at": "2026-09-07T02:29:55.233Z",
      "location_count": 3,
      "location_summary": "Farmington Hills, Michigan • Buffalo, New York • Dallas, Texas",
      "locations": [
        {
          "city": "Farmington Hills",
          "state": "Michigan"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00324506"
    },
    {
      "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": "2026-09-07T02:29:55.233Z",
      "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": "NCT01216072",
      "title": "A 6-month, Randomized, Open-label, Patient OutComes, Safety and Tolerability Study of Fingolimod (FTY720) 0.5 mg/Day vs. Comparator in Patients With Relapsing Forms of Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Relapsing Forms of Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Fingolimod",
          "type": "DRUG"
        },
        {
          "name": "Standard MS DMTs",
          "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": 1053,
      "start_date": "2010-08",
      "completion_date": "2012-08",
      "has_results": true,
      "last_update_posted_date": "2014-02-10",
      "last_synced_at": "2026-09-07T02:29:55.233Z",
      "location_count": 142,
      "location_summary": "Birmingham, Alabama • Cullman, Alabama • Phoenix, Arizona + 125 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01216072"
    },
    {
      "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": "2026-09-07T02:29:55.233Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00501943"
    },
    {
      "nct_id": "NCT00472797",
      "title": "Rebif New Formulation (RNF) Quality of Life (QOL) Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Relapsing Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Rebif New Formulation Non Titrated",
          "type": "DRUG"
        },
        {
          "name": "Rebif New Formulation Titrated",
          "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": 232,
      "start_date": "2007-04",
      "completion_date": "2009-11",
      "has_results": true,
      "last_update_posted_date": "2013-08-07",
      "last_synced_at": "2026-09-07T02:29:55.233Z",
      "location_count": 1,
      "location_summary": "Rockland, Massachusetts",
      "locations": [
        {
          "city": "Rockland",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00472797"
    }
  ]
}