{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Betaseron+%28Interferon+beta-1b%2C+BAY86-5046%29",
    "query": {
      "intervention": "Betaseron (Interferon beta-1b, BAY86-5046)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-05T05:59:06.978Z",
  "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": "NCT00235989",
      "title": "Extension of Prior Study Evaluating Safety and Tolerability of Two Doses of Betaseron® to Treat Relapsing-remitting Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Interferon beta 1b (Betaseron, BAY86-5046)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "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": 63,
      "start_date": "2003-06",
      "completion_date": "2008-01",
      "has_results": true,
      "last_update_posted_date": "2014-05-08",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 17,
      "location_summary": "Los Angeles, California • San Francisco, California • Washington D.C., District of Columbia + 12 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00235989"
    },
    {
      "nct_id": "NCT00893217",
      "title": "BEYOND Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple Sclerosis",
        "Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Betaseron (Interferon beta-1b, BAY86-5046)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "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": 71,
      "start_date": "2002-11",
      "completion_date": "2003-06",
      "has_results": false,
      "last_update_posted_date": "2009-11-09",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 14,
      "location_summary": "Los Angeles, California • Washington D.C., District of Columbia • Atlanta, Georgia + 11 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00893217"
    },
    {
      "nct_id": "NCT00461396",
      "title": "Success of Titration, Analgesics, and B.E.T.A Nurse Support on Acceptance Rates in Early Multiple Sclerosis (MS) Treatment With Betaseron",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis",
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Interferon-1beta (Betaseron, BAY86-5046)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 104,
      "start_date": "2007-05",
      "completion_date": "2009-11",
      "has_results": false,
      "last_update_posted_date": "2011-04-08",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 19,
      "location_summary": "Many Locations, Alabama • Many Locations, Arizona • Many Locations, Delaware + 16 more",
      "locations": [
        {
          "city": "Many Locations",
          "state": "Alabama"
        },
        {
          "city": "Many Locations",
          "state": "Arizona"
        },
        {
          "city": "Many Locations",
          "state": "Delaware"
        },
        {
          "city": "Many Locations",
          "state": "District of Columbia"
        },
        {
          "city": "Many Locations",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00461396"
    },
    {
      "nct_id": "NCT01031459",
      "title": "Telephone Interview of Patients That Participated in the the Pivotal Betaferon MS Trial.",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Betaseron (Interferon beta-1b, BAY86-5046)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 176,
      "start_date": "2010-01",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2012-01-05",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • Tucson, Arizona • San Francisco, California + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01031459"
    },
    {
      "nct_id": "NCT00206635",
      "title": "Betaseron 16-Year Long-Term Follow-Up (LTF) in Patients With Relapsing-Remitting Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "Interferon beta-1b (Betaseron, BAY86-5046)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "33 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "33 Years and older"
      },
      "enrollment_count": 432,
      "start_date": "2005-01",
      "completion_date": "2005-12",
      "has_results": false,
      "last_update_posted_date": "2012-11-22",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 6,
      "location_summary": "Many Locations, Alabama • Many Locations, Arizona • Many Locations, California + 3 more",
      "locations": [
        {
          "city": "Many Locations",
          "state": "Alabama"
        },
        {
          "city": "Many Locations",
          "state": "Arizona"
        },
        {
          "city": "Many Locations",
          "state": "California"
        },
        {
          "city": "Many Locations",
          "state": "Illinois"
        },
        {
          "city": "Many Locations",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00206635"
    },
    {
      "nct_id": "NCT00459667",
      "title": "BEYOND Follow-up: Betaferon®/Betaseron® Efficacy Yielding Outcomes of a New Dose",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Interferon beta-1b (Betaseron, BAY86-5046)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "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": 1420,
      "start_date": "2007-05",
      "completion_date": "2008-03",
      "has_results": true,
      "last_update_posted_date": "2015-04-23",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 51,
      "location_summary": "Birmingham, Alabama • Cullman, Alabama • Phoenix, Arizona + 47 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00459667"
    },
    {
      "nct_id": "NCT00099502",
      "title": "BEYOND: Betaferon/Betaseron Efficacy Yielding Outcomes of a New Dose in Multiple Sclerosis (MS) Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Interferon beta-1b (Betaferon/Betaseron, BAY86-5046)",
          "type": "DRUG"
        },
        {
          "name": "Copaxone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "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": 2244,
      "start_date": "2003-11",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2008-12-19",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 57,
      "location_summary": "Birmingham, Alabama • Cullman, Alabama • Phoenix, Arizona + 52 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00099502"
    },
    {
      "nct_id": "NCT02652091",
      "title": "Impact of the BETACONNECT Auto-injector on BETASERON Therapy Adherence and Patient Satisfaction",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis, Relapsing-Remitting"
      ],
      "interventions": [
        {
          "name": "Interferon beta-1b (Betaseron, BAY86-5046)",
          "type": "DRUG"
        },
        {
          "name": "BETACONNECT device",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 146,
      "start_date": "2016-02-05",
      "completion_date": "2017-09-13",
      "has_results": false,
      "last_update_posted_date": "2018-09-06",
      "last_synced_at": "2026-10-05T05:59:06.978Z",
      "location_count": 23,
      "location_summary": "Cullman, Alabama • Boca Raton, Florida • New Port Richey, Florida + 19 more",
      "locations": [
        {
          "city": "Cullman",
          "state": "Alabama"
        },
        {
          "city": "Boca Raton",
          "state": "Florida"
        },
        {
          "city": "New Port Richey",
          "state": "Florida"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02652091"
    }
  ]
}