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A Clinical Study of the Efficacy of Natalizumab on Reducing Disability Progression in Participants With Secondary Progressive Multiple Sclerosis (ASCEND in SPMS)

This study has been terminated.
(The ASCEND Study did not achieve statistical significance on the primary or secondary endpoints.)
Sponsor:
ClinicalTrials.gov Identifier:
NCT01416181
First Posted: August 12, 2011
Last Update Posted: September 11, 2017
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.
Information provided by (Responsible Party):
Biogen
  Purpose

This is a Phase 3b, multicenter, international study conducted in 2 parts. Upon completion of the placebo-controlled period (Part 1), participants will have the option of enrolling in a 2-year open-label extension (Part 2).

Part 1: The primary objective of the study is to investigate whether treatment with natalizumab slows the accumulation of disability not related to relapses in participants with secondary progressive multiple sclerosis (SPMS).

The secondary objectives of Part 1 of this study are to determine the proportion of participants with consistent improvement in Timed 25-Foot Walk (T25FW), the change in participant-reported ambulatory status as measured by the 12-item MS Walking Scale (MSWS-12), the change in manual ability based on the ABILHAND Questionnaire, the impact of natalizumab on participant-reported quality of life using the Multiple Sclerosis Impact Scale-29 Physical (MSIS-29 Physical), the change in whole brain volume between the end of study and Week 24 using magnetic resonance imaging (MRI) and the proportion of participants experiencing progression of disability as measured by individual physical Expanded Disability Status Scale (EDSS) system scores.

Part 2: The primary objective of Part 2 of the study is to evaluate the safety profile of natalizumab in participants with SPMS.

The secondary objectives of Part 2 of the study are to investigate long-term disability (based on clinical or participant-reported assessments) in participants with SPMS receiving natalizumab treatment for approximately 4 years and to assess change in brain volume and T2 lesion volume.


Condition Intervention Phase
Secondary Progressive Multiple Sclerosis Drug: natalizumab Drug: Placebo Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary Purpose: Treatment
Official Title: A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of the Efficacy of Natalizumab on Reducing Disability Progression in Subjects With Secondary Progressive Multiple Sclerosis, With Optional Open-Label Extension

Resource links provided by NLM:


Further study details as provided by Biogen:

Primary Outcome Measures:
  • Part 1: Percentage of Participants With Confirmed Progression of Disability in One or More of the Expanded Disability Status Scale (EDSS), Timed 25-Foot Walk (T25FW), or 9-Hole Peg Test (9HPT) [ Time Frame: Up to 96 weeks (2 years) ]

    Confirmed disability progression, defined as ≥1 of the following criteria (confirmed at a second visit ≥6 months later and at Week 96):

    • Confirmed progression in EDSS (EDSS score increased from baseline [BL] by ≥1 point if BL EDSS ≤5.5 or by ≥0.5 points if BL EDSS ≥6);
    • Confirmed progression in T25FW (T25FW increased by ≥20% of the BL walk);
    • Confirmed progression in 9HPT (9HPT increased by ≥20% of the time taken at BL on either hand and confirmed on the same hand).

    The EDSS measures disability status on a scale ranging from 0 to 10, with higher scores indicating more disability. The T25FW is a quantitative mobility and leg function performance test where the participant is timed while walking for 25 feet. The 9HPT is a quantitative test of upper extremity function that measures the time it takes to place 9 pegs into 9 holes and then remove the pegs. The 95% confidence interval (CI) of the percentage is based on normal approximation.


  • Number of Participants With Treatment-Emergent Adverse Events (AEs) and Serious Adverse Events (SAEs) [ Time Frame: 218 weeks ]
    AE: any untoward medical occurrence that did not necessarily have a causal relationship with this treatment. SAE: any untoward medical occurrence that at any dose: resulted in death; in the view of the Investigator, placed the participant at immediate risk of death (a life-threatening event); required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; resulted in a congenital anomaly/birth defect. An SAE may have also been any other medically important event in the opinion of the Investigator.


Secondary Outcome Measures:
  • Part 1: Percentage of Participants With a T25FW Response [ Time Frame: Up to 96 weeks ]
    T25FW response is defined as any improvement from the best pre-dose T25FW in at least 75% of the scheduled on-treatment visits through Week 96. The T25FW is a quantitative mobility and leg function performance test based on a timed walk over 25 feet. The participant is directed to one end of a clearly marked 25-foot course and is instructed to walk 25 feet as quickly as possible, but safely. The time is calculated from the initiation of the instruction to start and ends when the participant has reached the 25-foot mark. The task is immediately administered again by having the patient walk back the same distance. The score for the T25FW is the average of the 2 completed trials. The 95% CI of the percentage is based on normal approximation.

  • Part 1: Change From Baseline in the 12-Item MS Walking Scale (MSWS-12) [ Time Frame: Baseline and Week 96 ]
    MSWS-12 is a participant self-assessment of the walking limitations due to MS during the past 2 weeks. It contains 12 items that measure the impact of MS on walking. Items are summed to generate a total score and transformed to a scale with a range of 0 to 100, where higher scores indicate greater impact on walking. A negative number on change from BL value indicates an improvement in MSWS-12.

  • Part 1: Change From Baseline in Manual Ability Score Based on the ABILHAND Questionnaire [ Time Frame: Baseline and Week 96 ]
    The ABILHAND Questionnaire measures the participant's perceived difficulty in performing everyday manual activities in the last 3 months. The participant completes a 56-item questionnaire by estimating their own difficulty or ease in performing each of 56 activities. Items are summed to generate a total score and transformed to a scale with a range of 0 to 100, where high scores indicate greater impact on manual ability. A positive number on change from baseline value indicates an improvement in ABILHAND.

  • Part 1: Change From Baseline in the Multiple Sclerosis Impact Scale-29 Physical (MSIS-29 Physical) Score [ Time Frame: Baseline and Week 96 ]
    The 29-item MSIS-29 is a participant-reported outcome measure to assess the impact of MS on day-to-day life during the past 2 weeks from a participant's perspective; it measures 20 physical items and 9 psychological items. The physical score is generated by summing individual items and then transforming to a scale with a range of 0 to 100, where high scores indicate worse health. A negative number on change from baseline value indicates an improvement in MSIS-29.

  • Part 1: Percentage Change From Week 24 in Whole Brain Volume at Week 96 [ Time Frame: Week 24 and Week 96 ]
    Whole brain volume as measured by MRI.

  • Part 1: Percentage of Participants Defined as Confirmed Progressors on EDSS Functional System Scores [ Time Frame: Up to 96 weeks ]

    The EDSS measures disability status on a scale ranging from 0 to 10, with higher scores indicating more disability. Scoring is based on measures of impairment in eight functional systems on examination by a neurologist. Participants with confirmed progression of disability in EDSS physical functional system scores will be defined as those who met one of the following criteria:

    • an increase of ≥ 1 point from baseline system score of ≥ 1 or an increase of ≥ 2 points from baseline system score of 0 in at least 2 physical functional systems, or
    • an increase of ≥ 2 points from baseline system score of ≥ 1 or an increase of ≥ 3 points from baseline system score of 0 in any 1 physical functional system.

    A confirmed progressor was defined as a participant who met the criteria for disability progression at any given visit and at the 6-Month Confirmation Visit. The 95% CIs are based on normal approximation.


  • Part 2: Percentage of Participants With Disability Worsening at 156 Weeks [ Time Frame: Week 156 ]
    Percentage of participants with disability worsening at each scheduled efficacy visit in Part 2, defined as one or more of the following: • ≥ 20% worsening from Part 1 baseline in T25FW; • ≥ 20% worsening from Part 1 baseline in 9HPT; • Worsening from Part 1 baseline in EDSS (≥ 1 point increase if Part 1 baseline EDSS ≤ 5.5 or ≥ 0.5 point increase if Part 1 baseline EDSS > 5.5). The EDSS measures disability status on a scale ranging from 0 to 10, with higher scores indicating more disability. The T25FW is a quantitative mobility and leg function performance test where the participant is timed while walking for 25 feet. The 9HPT is a quantitative test of upper extremity function that measures the time it takes to place 9 pegs into 9 holes and then remove the pegs. 95% CIs of percentages are based on normal approximation.

  • Part 2: Absolute Change From Baseline (Part 1) in T25FW [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The T25FW is a quantitative mobility and leg function performance test based on a timed 25-foot walk. The participant is directed to one end of a clearly marked 25-foot course and is instructed to walk 25 feet as quickly as possible, but safely. The time is calculated from the initiation of the instruction to start and ends when the participant has reached the 25-foot mark. The task is immediately repeated; the score for the T25FW is the average of the two completed trials. Lower scores on time taken to reach 25 foot mark reflect a better outcome. Values are presented for the overall group, as well as the Confirmed Progressor (CP, defined in the primary outcome measure description above) and Non-Progressor (NP) subgroups.

  • Part 2: Percentage Change From Baseline (Part 1) in T25FW [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The T25FW is a quantitative mobility and leg function performance test based on a timed 25-foot walk. The participant is directed to one end of a clearly marked 25-foot course and is instructed to walk 25 feet as quickly as possible, but safely. The time is calculated from the initiation of the instruction to start and ends when the participant has reached the 25-foot mark. The task is immediately repeated; the score for the T25FW is the average of the two completed trials. Values are presented for the overall group, as well as the CP (defined in the primary outcome measure description above) and NP subgroups.

  • Part 2: Absolute Change From Baseline (Part 1) in 9HPT (Dominant Hand) [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The 9HPT is a brief, standardized, quantitative test of upper extremity function. The participant picks up 9 pegs puts them in a block containing nine empty holes, and, once they are in the holes, removes them again as quickly as possible one at a time. The total time to complete the task is recorded. Two consecutive trials with the dominant hand are immediately followed by two consecutive trials with the non-dominant hand. The two trials for each hand are averaged. Values are presented for the overall group, as well as the CP (defined in the primary outcome measure description above) and NP subgroups.

  • Part 2: Percentage Change From Baseline (Part 1) in 9HPT (Dominant Hand) [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The 9HPT is a brief, standardized, quantitative test of upper extremity function. The participant picks up 9 pegs puts them in a block containing nine empty holes, and, once they are in the holes, removes them again as quickly as possible one at a time. The total time to complete the task is recorded. Two consecutive trials with the dominant hand are immediately followed by two consecutive trials with the non-dominant hand. The two trials for each hand are averaged. Values are presented for the overall group, as well as the CP (defined in the primary outcome measure description above) and NP subgroups.

  • Part 2: Absolute Change From Baseline (Part 1) in 9HPT (Non-Dominant Hand) [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The 9HPT is a brief, standardized, quantitative test of upper extremity function. The participant picks up 9 pegs puts them in a block containing nine empty holes, and, once they are in the holes, removes them again as quickly as possible one at a time. The total time to complete the task is recorded. Two consecutive trials with the dominant hand are immediately followed by two consecutive trials with the non-dominant hand. The two trials for each hand are averaged. Values are presented for the overall group, as well as the CP (defined in the primary outcome measure description above) and NP subgroups.

  • Part 2: Percentage Change From Baseline (Part 1) in 9HPT (Non-Dominant Hand) [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The 9HPT is a brief, standardized, quantitative test of upper extremity function. The participant picks up 9 pegs puts them in a block containing nine empty holes, and, once they are in the holes, removes them again as quickly as possible one at a time. The total time to complete the task is recorded. Two consecutive trials with the dominant hand are immediately followed by two consecutive trials with the non-dominant hand. The two trials for each hand are averaged. Values are presented for the overall group, as well as the CP (defined in the primary outcome measure description above) and NP subgroups.

  • Part 2: Absolute Change From Baseline (Part 1) in EDSS [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The EDSS measures disability status on a scale ranging from 0 to 10, with higher scores indicating more disability. Scoring is based on measures of impairment in eight functional systems on examination by a neurologist. Values are presented for the overall group, as well as the CP (defined in the primary outcome measure description above) and NP subgroups.

  • Part 2: Percentage Change From Baseline (Part 1) in EDSS [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The EDSS measures disability status on a scale ranging from 0 to 10, with higher scores indicating more disability. Scoring is based on measures of impairment in eight functional systems on examination by a neurologist. Values are presented for the overall group, as well as the CP (defined in the primary outcome measure description above) and NP subgroups.

  • Part 2: Absolute Change From Baseline (Part 1) in the 6-Minute Walk Test (6MWT) [ Time Frame: Baseline (Part 1) and Weeks 156 and 204 ]
    The 6MWT measures the distance an individual is able to walk over a total of six minutes on a hard, flat surface. The goal is for the individual to walk as far as possible in six minutes.

  • Part 2: Percentage Change From Baseline (Part 1) in the 6MWT [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The 6MWT measures the distance an individual is able to walk over a total of six minutes on a hard, flat surface. The goal is for the individual to walk as far as possible in six minutes.

  • Part 2: Absolute Change From Baseline (Part 1) in the MSIS-29 Physical Score [ Time Frame: Baseline (Part 1) and Weeks 156 and 204 ]
    The 29-item MSIS-29 is a patient-reported outcome measure to assess the impact of MS on day-to-day life during the past 2 weeks from a patient's perspective; it measures 20 physical items and 9 psychological items. The physical score is generated by summing individual items and then transforming to a scale with a range of 0 to 100, where high scores indicate worse health. A negative number on change from baseline value indicates an improvement in MSIS-29.

  • Part 2: Percentage Change From Baseline (Part 1) in the MSIS-29 Physical Score [ Time Frame: Baseline (Part 1) and Weeks 156, 204 ]
    The 29-item MSIS-29 is a patient-reported outcome measure to assess the impact of MS on day-to-day life during the past 2 weeks from a patient's perspective; it measures 20 physical items and 9 psychological items. The physical score is generated by summing individual items and then transforming to a scale with a range of 0 to 100, where high scores indicate worse health. A negative number on change from baseline value indicates an improvement in MSIS-29.

  • Part 2: Absolute Change From Baseline (Part 1) in the Symbol Digit Modalities Test (SDMT) [ Time Frame: Baseline (Part 1) and every 4 weeks from Week 108 to Week 204 ]
    SDMT is a screening test for cognitive impairment. Participants are given 90 seconds in which to pair specific numbers with given geometric figures using a key. Scores range from 0 to 110 (best).

  • Part 2: Percentage Change From Baseline (Part 1) in the SDMT [ Time Frame: Baseline (Part 1) and every 4 weeks from Week 108 to Week 204 ]
    SDMT is a screening test for cognitive impairment. Participants are given 90 seconds in which to pair specific numbers with given geometric figures using a key. Scores range from 0 to 110 (best).

  • Part 2: Absolute Change From Baseline (Part 2) in the Work Productivity and Activity Impairment - Multiple Sclerosis (WPAI-MS) Questionnaire [ Time Frame: Part 2 Baseline (Week 108) and Weeks 156 and 204 ]
    The WPAI questionnaire is a validated instrument to measure impairments in work and activities. The WPAI yields four types of scores: 1. Absenteeism (percentage of work time missed) 2. Presenteesism (percentage of impairment at work/reduced on-the-job effectiveness) 3. Work productivity loss (percentage of overall work impairment [absenteeism plus presenteeism]) 4. Activity Impairment (percentage of overall activity impairment). WPAI outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity.

  • Part 2: Percentage Change From Baseline (Part 2) in the WPAI-MS Questionnaire [ Time Frame: Part 2 Baseline (Week 108) and Weeks 156 and 204 ]
    The WPAI questionnaire is a validated instrument to measure impairments in work and activities. The WPAI yields four types of scores: 1. Absenteeism (percentage of work time missed) 2. Presenteesism (percentage of impairment at work/reduced on-the-job effectiveness) 3. Work productivity loss (WPL; percentage of overall work impairment [absenteeism plus presenteeism]) 4. Activity Impairment (AI; percentage of overall activity impairment). WPAI outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity.

  • Part 2: Percentage Change From Week 24 (Part 1) in Whole Brain Volume [ Time Frame: Week 24 (Part 1) and Weeks 156 and 204 ]
    Whole brain volume as measured by MRI.

  • Part 2: Percentage Change From Baseline (Part 1) in Whole Gray Matter Brain Volume [ Time Frame: Baseline (Part 1) and Weeks 156 and 204 ]
    Whole grey matter brain volume as measured by MRI.

  • Part 2: Summary of New/Enlarging T2 Lesion Counts [ Time Frame: Baseline (Part 1) up to Week 204 ]
    New or enlarging T2 lesions as measured by MRI.

  • Part 2: Percentage Change From Baseline (Part 1) in Number of New/Enlarging T2 Lesions [ Time Frame: Baseline (Part 1) and Weeks 156 and 204 ]
    New or enlarging T2 lesions as measured by MRI.


Enrollment: 889
Actual Study Start Date: September 13, 2011
Study Completion Date: April 13, 2016
Primary Completion Date: July 28, 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: natalizumab
In Part 1 participants were randomized to receive 300 mg of natalizumab intravenously (IV) every 4 weeks for 96 weeks. In Part 2 participants transitioned to receive open-label natalizumab 300 mg IV every 4 weeks for at least 96 weeks.
Drug: natalizumab
Administered as specified in the treatment arm
Other Names:
  • Tysabri
  • BG00002
Experimental: Placebo
In Part 1 participants were randomized to receive placebo IV every 4 weeks for 96 weeks. In Part 2 participants transitioned to receive open-label natalizumab 300 mg IV every 4 weeks for at least 96 weeks.
Drug: natalizumab
Administered as specified in the treatment arm
Other Names:
  • Tysabri
  • BG00002
Drug: Placebo
Matched placebo in part 1

  Eligibility

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:   18 Years to 58 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Key Inclusion Criteria (Part 1):

  • Ability to understand the purpose and risks of the study and provide signed and dated informed consent and authorization to use protected health information in accordance with national and local subject privacy regulations.
  • SPMS defined as relapsing-remitting disease followed by progression of disability independent of or not explained by multiple sclerosis (MS) relapses for at least 2 years.
  • EDSS score of 3.0 to 6.5, inclusive.
  • Multiple Sclerosis Severity Score of 4 or higher.
  • Documented confirmed evidence of disease progression independent of clinical relapses over the 1 year prior to enrollment as defined in the Study Reference Guide.

Key Exclusion Criteria (Part 1):

  • Relapsing remitting multiple sclerosis (RRMS) or primary progressive MS as defined by the revised McDonald Committee criteria.
  • Clinical relapse (within 3 months) prior to randomization.
  • T25FW test of >30 seconds during the screening period.
  • Any value below the lower limit of normal for blood levels of leukocytes, lymphocytes, or neutrophils.
  • Considered by the Investigator to be immunocompromised based on medical history, physical examination, laboratory testing, or any other testing required by local guidelines, or due to prior immunosuppressive or immunomodulating treatment.
  • Subjects for whom MRI is contraindicated (i.e., have pacemakers or other contraindicated implanted metal devices, are allergic to gadolinium, or have claustrophobia that cannot be medically managed).
  • History of any clinically significant (as determined by the Investigator) cardiac, endocrinologic, hematologic, hepatic, immunologic, metabolic, urologic, pulmonary, neurologic (other than MS), dermatologic, psychiatric, and renal, or other major disease that would preclude participation in a clinical study.
  • History of malignant disease, including solid tumors and hematologic malignancies (with the exception of basal cell and squamous cell carcinomas of the skin that have been completely excised and are considered cured).
  • Known history of or positive test result for human immunodeficiency virus.
  • Positive test result for hepatitis C virus (test for hepatitis C virus antibody or hepatitis B virus (test for hepatitis B surface antigen and/or hepatitis B core antibody).
  • History of transplantation or any anti-rejection therapy.
  • Presence of any infectious disease (e.g., cellulitis, abscess, pneumonia, septicemia) within 30 days prior to screening.
  • History of progressive multifocal leukoencephalopathy or other opportunistic infections.

Treatment History (Part 1)

  • Any prior treatment with cell-depleting therapies, including total lymphoid irradiation, cladribine, rituximab, alemtuzumab, or bone marrow ablation.
  • Any prior treatment with natalizumab.
  • Treatment with mitoxantrone, cyclophosphamide, cyclosporine, azathioprine, methotrexate, mycophenolate mofetil, T cell or T cell receptor vaccination, fingolimod, daclizumab, or cytapheresis within 6 months prior to randomization.
  • Treatment with intravenous or oral corticosteroids, intravenous immunoglobulin, or plasmapheresis for treatment of MS within the 3 months prior to randomization.
  • Treatment with glatiramer acetate or any interferon beta preparations within 4 weeks prior to randomization.
  • Treatment with 4-aminopyridine within 30 days prior to randomization, unless a stable dose has been maintained for at least 30 days prior to randomization and will be continued for the course of this study.

Key Inclusion Criteria (Part 2):

  • Subjects must have participated in and completed Part 1 per protocol, and have documented assessment attempts for EDSS, T25FW, and 9HPT prior to first open-label dosing.

Key Exclusion Criteria (Part 2):

  • Subjects with any significant change in clinical status, including laboratory tests that, in the opinion of the Investigator, would make them unsuitable to participate in this extension study. The Investigator must re-review the subject's medical fitness for participation and consider any diseases that would preclude treatment.
  • Subjects who discontinued study treatment in Part 1 OR had fewer than 20 infusions in Part 1 OR missed 2 or more consecutive infusions in Part 1.

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): NCT01416181


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Tucson, Arizona, United States, 85741
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Fullerton, California, United States, 92835
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Katowice, Poland, 40-595
Research Site
Katowice, Poland, 40-635
Research Site
Katowice, Poland, 40-749
Research Site
Krakow, Poland, 31-505
Research Site
Lodz, Poland, 90-324
Research Site
Lublin, Poland, 20-954
Research Site
Olsztyn, Poland, 10-561
Research Site
Plewiska, Poland, 62-064
Research Site
Poznan, Poland, 61-853
Research Site
Szczecin, Poland, 70-111
Research Site
Warszawa-Miedzylesie, Poland, 04-749
Research Site
Warszawa, Poland, 01-697
Research Site
Warszawa, Poland, 02-097
Research Site
Warszawa, Poland, 04-141
Research Site
Wroclaw, Poland, 50-556
Russian Federation
Research Site
Belgorod, Russian Federation, 308007
Research Site
Kazan, Russian Federation, 420021
Research Site
Kazan, Russian Federation, 420097
Research Site
Moscow, Russian Federation, 127015
Research Site
St. Petersburg, Russian Federation, 197110
Research Site
Tyumen, Russian Federation, 625000
Spain
Research Site
Barcelona, Spain, 08035
Research Site
Barcelona, Spain, 08036
Research Site
Barcelona, Spain, 08041
Research Site
El Palmar, Spain, 30120
Research Site
Madrid, Spain, 28034
Research Site
Madrid, Spain, 28040
Research Site
Majadahonda, Spain, 28222
Research Site
Málaga, Spain, 29010
Research Site
Santa Cruz de Tenerife, Spain, 38010
Research Site
Sevilla, Spain, 41009
Sweden
Research Site
Göteborg, Sweden, 41345
Research Site
Stockholm, Sweden, 14186
Research Site
Stockholm, Sweden, 17176
Research Site
Stockholm, Sweden, 18288
Research Site
Umeå, Sweden, 90185
Research Site
Örebro, Sweden, 70185
United Kingdom
Research Site
Irvine, Ayrshire, United Kingdom, KA12 8SS
Research Site
Edgbaston, Birmingham, United Kingdom, B15 2TH
Research Site
Exeter, Devon, United Kingdom, EX2 5DW
Research Site
Plymouth, Devon, United Kingdom, PL6 8BX
Research Site
London, Greater London, United Kingdom, E1 2AT
Research Site
London, Greater London, United Kingdom, SE5 9RS
Research Site
Hammersmith, London, United Kingdom, W6 8RF
Research Site
Edinburgh, Lothian Region, United Kingdom, EH4 2XU
Research Site
Salford, Manchester, United Kingdom, M6 8HD
Research Site
Liverpool, Merseyside, United Kingdom, L9 7LJ
Research Site
Norwich, Norfolk, United Kingdom, NR4 7UY
Research Site
Nottingham, Nottinghamshire, United Kingdom, NG7 2UH
Research Site
Morriston, Swansea, United Kingdom, SA6 6NL
Research Site
Newcastle, Tyne, United Kingdom, NE1 4LP
Research Site
Brighton, United Kingdom, BN2 5BE
Research Site
London, United Kingdom, WC1N 3BG
Research Site
Sheffield, United Kingdom, S10 2JF
Sponsors and Collaborators
Biogen
Investigators
Study Director: Medical Director Biogen
  More Information

Additional Information:
Responsible Party: Biogen
ClinicalTrials.gov Identifier: NCT01416181     History of Changes
Other Study ID Numbers: 101MS326
2010-021978-11 ( EudraCT Number )
First Submitted: July 21, 2011
First Posted: August 12, 2011
Results First Submitted: April 13, 2017
Results First Posted: June 27, 2017
Last Update Posted: September 11, 2017
Last Verified: August 2017

Keywords provided by Biogen:
Natalizumab
secondary
multiple sclerosis
MS
SPMS
Tysabri

Additional relevant MeSH terms:
Natalizumab
Sclerosis
Multiple Sclerosis
Neoplasm Metastasis
Multiple Sclerosis, Chronic Progressive
Pathologic Processes
Demyelinating Autoimmune Diseases, CNS
Autoimmune Diseases of the Nervous System
Nervous System Diseases
Demyelinating Diseases
Autoimmune Diseases
Immune System Diseases
Neoplastic Processes
Neoplasms
Immunologic Factors
Physiological Effects of Drugs