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Trial record 1 of 1 for:    Randomized Treatment Interruption of Natalizumab
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Treatment Interruption of Natalizumab (RESTORE)

This study has been completed.
Elan Pharmaceuticals
Information provided by (Responsible Party):
Biogen Identifier:
First received: February 17, 2010
Last updated: September 12, 2013
Last verified: November 2012

This is a randomized, rater blinded trial in patients who interrupt treatment with natalizumab with or without being treated with other immunomodulatory drugs, or continue treatment with natalizumab.

The main purpose of this study is to find out the following, when participants stop taking natalizumab for 24 weeks:

  • when MS symptoms return, and
  • if other drugs for MS may help control MS symptoms during the natalizumab-interruption period.

This study will also explore how quickly the effects of natalizumab return after resuming natalizumab dosing.

Condition Intervention Phase
Relapsing Remitting Multiple Sclerosis
Drug: natalizumab
Drug: interferon beta 1-a
Drug: methylprednisolone
Other: IV placebo
Drug: glatiramer acetate
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Randomized Treatment Interruption of Natalizumab

Resource links provided by NLM:

Further study details as provided by Biogen:

Primary Outcome Measures:
  • Time Course to Return of Radiological and/or Clinical Evidence of Multiple Sclerosis Activity, as Measured by the Percentage of Subjects Who Met Magnetic Resonance Imaging (MRI) and/or Clinical Relapse Rescue Criteria. [ Time Frame: 28 Weeks ]
    Rescue criteria were: 1) central reader MRI finding of 1 new gadolinium-enhancing (Gd+) lesion of >0.8 cubic centimeters in volume or 2 or more Gd+ lesions of any size 2) clinical relapse. Clinical relapse was new or recurrent neurological symptoms not associated with fever or infection, lasting at least 24 hours, as defined by: an increase of ≥1 grade in ≥2 functional scales of the Expanded Disability Status Scale (EDSS); an increase of ≥2 grades in 1 functional scale of the EDSS; or an increase of >0.5 in EDSS if the previous EDSS was ≤5.5, or ≥0.5 if the previous EDSS was >5.5

Secondary Outcome Measures:
  • Time Course to Return of Radiological Activity, as Measured by the Percentage of Subjects Who Met Magnetic Resonance Imaging (MRI) Rescue Criteria. [ Time Frame: 28 Weeks ]
    MRI rescue criteria were the presence of 1 new gadolinium-enhancing (Gd+) lesion of >0.8 cubic centimeters in volume or 2 or more Gd+ lesions of any size, according to the central MRI reader.

Enrollment: 175
Study Start Date: March 2010
Study Completion Date: November 2011
Primary Completion Date: November 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: natalizumab Drug: natalizumab
300 mg intravenous every 4 weeks
Placebo Comparator: IV placebo Other: IV placebo
placebo intravenous every 4 weeks
Active Comparator: interferon β-1a, glatiramer acetate, or methylprednisolone Drug: interferon beta 1-a
30 ug intramuscular once per week
Drug: methylprednisolone
1000 mg intravenous every 4 weeks
Drug: glatiramer acetate
20 mg subcutaneous once daily


Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Major criteria include:

  • A diagnosis of a relapsing form of MS
  • Treatment with natalizumab according to locally approved prescribing information
  • Other protocol defined inclusion/exclusion criteria may apply
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01071083

  Show 33 Study Locations
Sponsors and Collaborators
Elan Pharmaceuticals
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Biogen Identifier: NCT01071083     History of Changes
Other Study ID Numbers: 101MS205
Study First Received: February 17, 2010
Results First Received: October 25, 2012
Last Updated: September 12, 2013

Keywords provided by Biogen:

Additional relevant MeSH terms:
Multiple Sclerosis
Multiple Sclerosis, Relapsing-Remitting
Demyelinating Autoimmune Diseases, CNS
Autoimmune Diseases of the Nervous System
Nervous System Diseases
Demyelinating Diseases
Autoimmune Diseases
Immune System Diseases
Methylprednisolone Hemisuccinate
Interferon beta-1a
Glatiramer Acetate
Prednisolone acetate
Methylprednisolone acetate
Prednisolone hemisuccinate
Prednisolone phosphate
Antineoplastic Agents
Antiviral Agents
Anti-Infective Agents
Immunologic Factors
Physiological Effects of Drugs
Adjuvants, Immunologic
Immunosuppressive Agents
Antirheumatic Agents
Anti-Inflammatory Agents
Antiemetics processed this record on May 25, 2017