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JC-Virus (JCV) Antibody Program (STRATIFY-1)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: February 18, 2010
Last Update Posted: October 5, 2016
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
United BioSource Corporation
Elan Pharmaceuticals
Information provided by (Responsible Party):
The primary objective is to define the prevalence of serum anti-JCV antibody in relapsing multiple sclerosis (MS) participants receiving Tysabri® (natalizumab) or being considered for such treatment. Secondary objectives are to analytically validate the anti-JCV antibody assay in a plasma matrix and to determine changes in anti-JCV antibody status over time.

Condition Intervention
Multiple Sclerosis Drug: Tysabri® (natalizumab)

Study Type: Observational
Study Design: Time Perspective: Prospective
Official Title: JCV Antibody Program in Patients With Relapsing Multiple Sclerosis Receiving or Considering Treatment With Tysabri®: STRATIFY-1

Resource links provided by NLM:

Further study details as provided by Biogen:

Primary Outcome Measures:
  • Prevalence of serum anti-JC virus (JCV) antibody [ Time Frame: Day 1 ]
    Prevalence of anti-JCV antibodies will be estimated as the number of participants with anti-JCV antibodies detected in serum divided by the total number of participants with a serum sample that was evaluated.

  • Number of participants with a false negative test [ Time Frame: Day 1 ]
    Confirm the false negative rate for serum anti-JCV antibody [assay].

Secondary Outcome Measures:
  • Changes in JCV antibody status over time [ Time Frame: Every 6 months for 2 Years ]

Biospecimen Retention:   Samples Without DNA
Serum, Urine and Plasma

Enrollment: 1096
Study Start Date: March 2010
Study Completion Date: June 2012
Primary Completion Date: June 2012 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Relapsing Multiple Sclerosis
Participants receiving or considering treatment with Tysabri® (natalizumab).
Drug: Tysabri® (natalizumab)
Prescribed according to the TYSABRI Outreach: United Commitment to Health (TOUCH) Prescribing Program
Other Names:
  • natalizumab
  • BG0002

Detailed Description:
This study requires serum, plasma and urine collection at enrollment and every 6 months thereafter for up two years.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients with relapsing Multiple Sclerosis (MS) receiving commercial Tysabri® (natalizumab) and patients being considered for such treatment.

Key Inclusion Criteria:

  • Relapsing multiple sclerosis (MS) patients interested in or considering beginning treatment with Tysabri® (natalizumab).

Key Exclusion Criteria:

  • Patients participating in any other Tysabri® (natalizumab) clinical trial or study sponsored by Biogen Idec or Elan may not participate in this study.

NOTE: Other protocol-defined inclusion/exclusion criteria may apply.

  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01070823

United States, Colorado
Research Site
Aurora, Colorado, United States, 80045
United States, Georgia
Research Site
Atlanta, Georgia, United States, 30327
Research Site
Cullman, Georgia, United States, 35058
United States, Illinois
Research Site
Barrington, Illinois, United States, 60010
United States, Massachusetts
Research Site
Brighton, Massachusetts, United States, 2135
United States, Michigan
Research Site
Farmington Hills, Michigan, United States, 48334
United States, North Carolina
Research Site
Raleigh, North Carolina, United States, 27607
United States, Oregon
Research Site
Portland, Oregon, United States, 97225
United States, Texas
Research Site
Round Rock, Texas, United States, 78681
United States, Utah
Research Site
Salt Lake City, Utah, United States
United States, Wisconsin
Research Site
Milwaukee, Wisconsin, United States, 53215
Sponsors and Collaborators
United BioSource Corporation
Elan Pharmaceuticals
Study Director: Medical Director Biogen
  More Information

Responsible Party: Biogen
ClinicalTrials.gov Identifier: NCT01070823     History of Changes
Other Study ID Numbers: 101JC401
First Submitted: February 17, 2010
First Posted: February 18, 2010
Last Update Posted: October 5, 2016
Last Verified: October 2016

Keywords provided by Biogen:
Sample Collection

Additional relevant MeSH terms:
Multiple Sclerosis
Pathologic Processes
Demyelinating Autoimmune Diseases, CNS
Autoimmune Diseases of the Nervous System
Nervous System Diseases
Demyelinating Diseases
Autoimmune Diseases
Immune System Diseases
Immunologic Factors
Physiological Effects of Drugs