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Completed No phase listed Observational Accepts healthy volunteers

Avonex 15 Year Long Term Follow-up Study

ClinicalTrials.gov ID: NCT00525343

Public ClinicalTrials.gov record NCT00525343. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 18, 2026, 5:44 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Avonex® Fifteen Year Long Term Follow Up of Patients With Relapsing Multiple Sclerosis: ASSessment of Drug Utilization, EaRly TreAtmeNt, and Clinical OutcomEs

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The Avonex Fifteen-year Long-term Follow-up of Patients with Relapsing Multiple Sclerosis: ASSessment of Drug Utilization, EaRly TreAtmeNt, and Clinical OutcomEs (ASSURANCE), was a single-time-point evaluation of patients conducted 15 years after the pivotal MSCRG study, evaluated the impact of IM IFNβ-1a treatment on long-term disability and Quality of Life outcomes in patients who completed 2 years in a previous Multiple Sclerosis Collaborative Research Group (MSCRG) study.

Study identification

NCT ID
NCT00525343
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Lead sponsor
Biogen
Industry
Enrollment
122 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Mar 2007 (Type not available)
Primary completion
Not listed
Completion
Sep 2008 (Actual)
Last update posted
Mar 8, 2010

2007 – 2008

United States locations

U.S. sites
4
U.S. states
4
U.S. cities
4
Facility City State ZIP Site status
Georgetown University Medical Center Washington D.C. District of Columbia 20007 —
Jocab's Neurological Institute Buffalo New York 14203 —
Cleveland Clinic Foundation Cleveland Ohio 44195 —
Oregon Health and Science University Portland Oregon 97239 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00525343, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Mar 8, 2010 · Synced Oct 18, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00525343 live on ClinicalTrials.gov.

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