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Telephone Interview of Patients That Participated in the the Pivotal Betaferon MS Trial.

An Observational 20-year, Cross-sectional, Long-term Follow up of the Patient Cohort Enrolled in the Pivotal Study of Betaseron® (Interferon Beta-1b) in Relapsing-remitting Multiple Sclerosis

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01031459
Enrollment
176
Registered
2009-12-14
Start date
2010-01-31
Completion date
2010-12-31
Last updated
2012-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Sclerosis

Brief summary

The purpose of this study is to investigate the clinical status of patients who participated in the original pivotal Betaseron study at 20 years after randomized treatment initiationStudy end-points include: 1. Mortality - All-cause mortality - Cause specific mortality - Multiple sclerosis-related mortality 2. EDSS (Expanded Disability Status Scale) 3. Cognition 4. Resource use 5. SPMS (Secondary Progressive Multiple Sclerosis) status 6. Employment history

Interventions

Telephone survey of all patients.

Sponsors

Bayer
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Previously enrolled in the Betaseron pivotal study protocols TB01-35686 in the US and TB01-35886 in Canada (total, N=372) * Patient, caregiver, or legal guardian must provide written informed consent * Patient must confirm her/his ability and agreement to participate in the study at the beginning of the phone call

Design outcomes

Primary

MeasureTime frame
Descriptive exploration of mortality, EDSS, cognition, resource use, SPMS status and employment history by length of exposure to Betaseron and stratified by the original clinical trial group assignment (1.6 MIU, 8 MIU, placebo)20 years

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026