Now Available for Public Comment: Notice of Proposed Rulemaking (NPRM) for FDAAA 801 and NIH Draft Reporting Policy for NIH-Funded Trials
Trial record 1 of 2 for:    Abatacept in Adults with Relapsing-remitting Multiple Sclerosis
Previous Study | Return to List | Next Study

A Cooperative Clinical Study of Abatacept in Multiple Sclerosis (ACCLAIM)

This study is ongoing, but not recruiting participants.
Immune Tolerance Network (ITN)
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID) Identifier:
First received: May 3, 2010
Last updated: August 13, 2014
Last verified: August 2014

The ACCLAIM study is testing whether the medication "abatacept" can be of benefit to patients with relapsing-remitting multiple sclerosis (MS). Although abatacept is an investigational medication for MS, it is not a new drug. Abatacept has been approved by the FDA to treat rheumatoid arthritis.

Condition Intervention Phase
Multiple Sclerosis, Relapsing-Remitting
Biological: abatacept
Drug: Placebo
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Treatment
Official Title: A Phase II, Randomized, Double-blind, Parallel-group, Placebo-controlled, Multicenter Study to Evaluate the Safety and Efficacy of Abatacept in Adults With Relapsing-remitting Multiple Sclerosis

Resource links provided by NLM:

Further study details as provided by National Institute of Allergy and Infectious Diseases (NIAID):

Primary Outcome Measures:
  • Number of New Inflammatory MRI Lesions on Monthly Scans [ Time Frame: Weeks 8-24 ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Absolute Number of New Inflammatory Lesions by MRI [ Time Frame: each monthly MRI ] [ Designated as safety issue: No ]
  • Lesion Volume Accumulation on T2-weighted MRI scans [ Time Frame: over 24 weeks ] [ Designated as safety issue: No ]
  • Change in Brain Parenchymal Fraction [ Time Frame: 0-24 weeks ] [ Designated as safety issue: No ]
  • New Inflammatory Lesions [ Time Frame: 8-week intervals ] [ Designated as safety issue: No ]
  • Proportion of Patients Progressing on the EDSS Scale by 1 Point [ Time Frame: general ] [ Designated as safety issue: No ]
    EDSS = Expanded Disability Status Scale --

  • Annualized Relapse Rate [ Time Frame: annual ] [ Designated as safety issue: No ]
  • Mean Change in MSFC [ Time Frame: over 24 weeks ] [ Designated as safety issue: No ]
    MSFC = Multiple Sclerosis Functional Composite --

  • Adverse Events (AEs) [ Time Frame: all ] [ Designated as safety issue: Yes ]
  • Multiple Laboratory Results [ Time Frame: all ] [ Designated as safety issue: Yes ]

Enrollment: 65
Study Start Date: September 2010
Estimated Study Completion Date: July 2015
Primary Completion Date: June 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Abatacept
Receives abatacept during first course of treatment, switching to placebo during extension phase.
Biological: abatacept
In core/extension phase: administered IV at weeks 0/28, 2/30, and 4/32, and then every 4 weeks until week 24/52; Dosing: less than 60 kg, 500 mg; 60-100 kg, 750 mg; or greater than 100 kg, 1 gram
Other Names:
  • Orencia®
  • CTLA4Ig
Drug: Placebo
In core/extension phase: administered IV at weeks 0/28, 2/30, and 4/32, and then every 4 weeks until week 24/52
Other Name: placebo abatacept
Placebo Comparator: Placebo, followed by abatacept
Receives a placebo for first course of treatment, switching to abatacept in the extension phase.
Biological: abatacept
In core/extension phase: administered IV at weeks 0/28, 2/30, and 4/32, and then every 4 weeks until week 24/52; Dosing: less than 60 kg, 500 mg; 60-100 kg, 750 mg; or greater than 100 kg, 1 gram
Other Names:
  • Orencia®
  • CTLA4Ig
Drug: Placebo
In core/extension phase: administered IV at weeks 0/28, 2/30, and 4/32, and then every 4 weeks until week 24/52
Other Name: placebo abatacept

Detailed Description:

MS is a chronic autoimmune disease in which blood cells that are supposed to protect the body from infection mistakenly attack the body's own tissue. In MS, the target of this attack is a protein called myelin that coats nerves throughout the body. Damage to this protective layer can lead to loss of neurologic function.

There are a number of treatments available to MS patients. Interferon beta, Copaxone, and other drugs can delay the worsening of the disease in some patients. For other patients, more aggressive treatment with chemotherapy drugs such as cyclophosphamide or azathioprine are needed. These drugs attempt to slow the disease by limiting the activity of the entire immune system. Because of this, they can often have serious side effects.

This study evaluates the efficacy of abatacept in the treatment of relapsing-remitting MS. In the first phase of the study, all participants will receive 8 intravenous treatments over a period of 24 weeks. Then, if a participant remains eligible, they will enter the second phase of the study and will receive another 8 treatments over the following 24 weeks. Two-thirds (2 out of 3) of participants will receive the study drug abatacept in the first phase, and then an inactive form (placebo) of the drug in the second phase. The remaining one-third (1 in 3) will get the placebo first, then the study drug in the second phase if they remain eligible. Therefore, all participants in the ACCLAIM trial will have the opportunity to receive the study drug abatacept if they remain healthy during the study. Participants will be asked to return for a follow-up visit 12 weeks after all treatments have been completed.

Regular appointments scheduled during the trial will be used to monitor participants' health and progress in the study. These appointments will include: physical and neurological exams, blood tests and motor function assessments. A total of 11 magnetic resonance imaging (MRI) procedures are scheduled during the study. The study medication and procedures related to the study will be provided at no expense to the participant.


Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Clinically definite RRMS meeting McDonald's criteria
  • EDSS scores between 0 and 5
  • Active disease as defined by at least one of the following criteria:

    1. One or more documented clinical exacerbations in the past year prior to visit -2
    2. One or more gadolinium (Gd)-enhanced MRI lesions in the past year
  • Willingness to forego available MS therapies
  • Ability and willingness to provide informed consent and comply with study requirements and procedures

Exclusion Criteria:

  • Normal brain MRI at week -5 scan
  • Females who are pregnant, intending pregnancy, or lactating, and unwilling to undergo pregnancy testing
  • Females who are unwilling to use approved methods of contraception for the duration of the study
  • Any chronic medical disease, other than MS, that compromises organ function
  • Active infection
  • Diagnosis of secondary or primary progressive MS
  • Previous treatment with cyclophosphamide, mitoxantrone, cladribine, or rituximab at any time
  • Previous treatment with abatacept within the last 52 weeks prior to visit -2
  • Previous treatment with systemic steroids, interferon, Copaxone, mycophenolate, or other immunosuppressive medications within the last 4 weeks prior to visit -2
  • Previous treatment with Natalizumab within the last 26 weeks prior to visit -2
  • Previous vaccination with live vaccine, or previous treatment with fingolimod, within the last 8 weeks prior to visit-2
  • Diagnosis of malignancy other than basal cell carcinoma or cervical carcinoma in situ
  • Claustrophobia or other contraindications to Gd-enhanced MRI
  • Positive for human immunodeficiency virus (HIV) serology
  • Positive for hepatitis B surface antigen (HBsAg)
  • Positive for hepatitis C virus (HCV) serology
  • PPD (purified protein derivative)-tuberculin skin test result greater than 5 mm induration
  • Hemoglobin less than 10.5 gm/dL
  • Platelets less than100K/µL
  • Absolute lymphocyte count less than 700 cells/μL
  • Serum creatinine greater than 1.20 mg/dL
  • eGFR (estimated glomerular filtration rate) less than 60 mL/min/1.73 m^2
  • IgG anti-cardiolipin antibody greater than 15GPL U/mL
  • Previous participation in another interventional clinical trial within the past 4 weeks prior to visit -2
  • Allergy or sensitivity to any component of abatacept
  • The presence of any medical condition that the investigator deems incompatible with participation in the trial
  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: NCT01116427

  Hide Study Locations
United States, Arizona
St. Josephs Hospital and Medical Center - Barrow Neurology
Phonix, Arizona, United States, 85013
United States, California
Jordan Research and Education Institute (REDI): Alta Bates Summit Medical Center
Berkeley, California, United States, 94705
University of Southern California - Keck School of Medicine
Los Angeles, California, United States, 90033
Newport Beach Clinical Research Associates, Inc.
Newport Beach, California, United States, 92663
University of California, Davis
Sacramento, California, United States, 95817
United States, Florida
University of Miami
Miami, Florida, United States, 33136
United States, Illinois
South Suburban Neurology
Flossmoor, Illinois, United States, 60422
United States, Kentucky
Norton Neuroscience Institute - Norton Neurology Services MS Center
Louisville, Kentucky, United States, 40207
United States, Louisiana
Louisiana State University
Shreveport, Louisiana, United States, 71130
United States, Maryland
University of Maryland
Baltimore, Maryland, United States, 21201
United States, Massachusetts
Brigham & Women's Hospital
Boston, Massachusetts, United States, 02115
United States, Minnesota
University of Minnesota
Minneapolis, Minnesota, United States, 55414
United States, New York
Judith Jaffe Multiple Sclerosis Center: Weill Cornell Medical College
New York, New York, United States, 10065
United States, North Carolina
University of North Carolina
Chapel Hill, North Carolina, United States, 27514
United States, Ohio
Neurology Specialists, Inc.
Dayton, Ohio, United States, 45417
United States, Oregon
Providence St. Vincent Medical Center
Portland, Oregon, United States, 97225
United States, Pennsylvania
University of Pennsylvania
Philadelphia, Pennsylvania, United States, 19104
United States, Rhode Island
The Neurology Foundation, Inc.
Providence, Rhode Island, United States, 02905
United States, Tennessee
Advanced Neurosciences Institute
Franklin, Tennessee, United States, 37064
United States, Washington
Benaroya Research Institute at Virginia Mason
Seattle, Washington, United States, 98101
Canada, Ontario
Ottawa Hospital Research Institute
Ottawa, Ontario, Canada, K1H 8L6
Sponsors and Collaborators
Immune Tolerance Network (ITN)
Principal Investigator: Samia Khoury, MD Brigham and Women's Hospital
  More Information

Additional Information:
Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID) Identifier: NCT01116427     History of Changes
Other Study ID Numbers: DAIT ITN035AI
Study First Received: May 3, 2010
Last Updated: August 13, 2014
Health Authority: United States: Food and Drug Administration
United States: Institutional Review Board
United States: Federal Government

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
multiple sclerosis
relapsing-remitting multiple sclerosis

Additional relevant MeSH terms:
Multiple Sclerosis
Multiple Sclerosis, Relapsing-Remitting
Autoimmune Diseases
Autoimmune Diseases of the Nervous System
Demyelinating Autoimmune Diseases, CNS
Demyelinating Diseases
Immune System Diseases
Nervous System Diseases
Pathologic Processes
Antirheumatic Agents
Immunologic Factors
Immunosuppressive Agents
Pharmacologic Actions
Physiological Effects of Drugs
Therapeutic Uses processed this record on November 20, 2014