A Phase 2 Study of Atacicept in Subjects With Relapsing Multiple Sclerosis (ATAMS) (ATAMS)
A Four-Arm Randomized, Double-Blind, Placebo-Controlled, Multicenter Phase II Study to Evaluate the Safety, Tolerability and Efficacy as Assessed by Frequent MRI Measures of 3 Doses of Atacicept Monotherapy in Subjects With Relapsing Multiple Sclerosis (RMS) Over a 36 Week Treatment Course
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 2
Contacts and Locations
Study Locations
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Box Hill, Australia
- Research Site
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Fitzroy, Australia
- Research Site
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New Lambton, Australia
- Research Site
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Woodville, Australia
- Research Site
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Innsbruck, Austria
- Research Site
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Diepenbeek, Belgium
- Research Site
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Sijsele, Belgium
- Research Site
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Ontario, Canada
- Research Site
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Alberta
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Calgary, Alberta, Canada
- Research Site
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Ontario
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Ottawa, Ontario, Canada
- Research Site
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Brno, Czech Republic
- Research Site
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Hradec Kralove, Czech Republic
- Research Site
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Olomouc, Czech Republic
- Research Site
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Caen, France
- Research Site
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Saint-Herblain, France
- Research Site
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Bochum, Germany
- Research Site
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Dusseldorf, Germany
- Research Site
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Beirut, Lebanon
- Research Site
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Beyrouth, Lebanon
- Research Site
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Kaunas, Lithuania
- Research Site
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Breda, Netherlands
- Research Site
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Nieuwegein, Netherlands
- Research Site
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Rotterdam, Netherlands
- Research Site
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Dnipropetrovsk, Russian Federation
- Research Site
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Ekaterinburg, Russian Federation
- Research Site
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Moscow, Russian Federation
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Novosibirsk, Russian Federation
- Research Site
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Saint Petersburg, Russian Federation
- Research Site
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Samara, Russian Federation
- Research Site
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Vladimir, Russian Federation
- Research Site
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Yaroslavl, Russian Federation
- Research Site
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Barcelona, Spain
- Research Site
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Madrid, Spain
- Research Site
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Malaga, Spain
- Research Site
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Stockholm, Sweden
- Research Site
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Basel, Switzerland
- Research Site
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Kharkiv, Ukraine
- Research Site
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Kyiv, Ukraine
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Odessa, Ukraine
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Uzhgorod, Ukraine
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London, United Kingdom
- Research Site
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Sheffield, United Kingdom
- Research Site
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Stoke on Trent, United Kingdom
- Research Site
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Arizona
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Phoenix, Arizona, United States
- Research Site
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Georgia
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Atlanta, Georgia, United States
- Research Site
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Illinois
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Northbrook, Illinois, United States
- Research Site
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Michigan
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East Lansing, Michigan, United States
- Research Site
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New Hampshire
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Dartmouth, New Hampshire, United States
- Research Site
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Ohio
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Cleveland, Ohio, United States
- Research Site
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Pennsylvania
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Philadelphia, Pennsylvania, United States
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Tennessee
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Nashville, Tennessee, United States
- Research Site
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Diagnosis of RMS (as per McDonald criteria, 2005) Other protocol-defined inclusion criteria could apply.
Exclusion Criteria:
- Have primary progressive multiple sclerosis (MS)
- Have secondary progressive MS without superimposed relapses
- Relevant cardiac, hepatic and renal diseases as specified in the protocol
- Pretreatment with immunosuppressants and immunomodulating drugs as specified in the protocol
- Clinical significant abnormalities in blood cell counts and immunoglobulin levels as specified in the protocol
- Clinical significant acute or chronic infections as specified in the protocol Other protocol-defined exclusion criteria could apply.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
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Placebo Comparator: Placebo
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Placebo matched to atacicept will be administered subcutaneously twice a week for initial 4 weeks, followed by once a week for subsequent 32 weeks.
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Experimental: Atacicept 75 mg
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Atacicept will be administered subcutaneously at a dose of 25 milligram (mg) twice a week for initial 4 weeks as loading dose, followed by 25 mg once a week for subsequent 32 weeks.
Atacicept will be administered subcutaneously at a dose of 75 mg twice a week for initial 4 weeks as loading dose, followed by 75 mg once a week for subsequent 32 weeks.
Atacicept will be administered subcutaneously at a dose of 150 mg twice a week for initial 4 weeks as loading dose, followed by 150 mg once a week for subsequent 32 weeks.
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Experimental: Atacicept 150 mg
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Atacicept will be administered subcutaneously at a dose of 25 milligram (mg) twice a week for initial 4 weeks as loading dose, followed by 25 mg once a week for subsequent 32 weeks.
Atacicept will be administered subcutaneously at a dose of 75 mg twice a week for initial 4 weeks as loading dose, followed by 75 mg once a week for subsequent 32 weeks.
Atacicept will be administered subcutaneously at a dose of 150 mg twice a week for initial 4 weeks as loading dose, followed by 150 mg once a week for subsequent 32 weeks.
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Experimental: Atacicept 25 mg
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Atacicept will be administered subcutaneously at a dose of 25 milligram (mg) twice a week for initial 4 weeks as loading dose, followed by 25 mg once a week for subsequent 32 weeks.
Atacicept will be administered subcutaneously at a dose of 75 mg twice a week for initial 4 weeks as loading dose, followed by 75 mg once a week for subsequent 32 weeks.
Atacicept will be administered subcutaneously at a dose of 150 mg twice a week for initial 4 weeks as loading dose, followed by 150 mg once a week for subsequent 32 weeks.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Mean Number of Time Constant 1 (T1) Gadolinium (Gd)-Enhancing Lesions Per Participant Per Scan
Time Frame: Weeks 12 to 36
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Analysis of T1 Gd-enhancing lesions was done using magnetic resonance imaging (MRI) scans.
Only post-baseline scans were included in the calculation of this endpoint (excluding the Study Day 1 scan which had been conducted before first dosing).
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Weeks 12 to 36
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Number of New T1 Gd-enhancing Lesions Per Participant
Time Frame: Weeks 12, 24, 36
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Analysis of new T1 Gd-enhancing lesions was done using MRI scans.
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Weeks 12, 24, 36
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Percentage of Participants Free From Relapses
Time Frame: Baseline up to Week 36
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A relapse was defined as the fulfillment of all the following criteria: a) neurological abnormality, either newly appearing or re-appearing, with abnormality specified by both i) neurological abnormality separated by at least 30 days from onset of a preceding clinical event, and ii) neurological abnormality lasting for at least 24 hours; b) absence of fever or known infection (fever with temperature [axillary, orally, or intrauriculary] greater than (>) 37.5 degrees Celsius or 99.5 degrees Fahrenheit); and c) objective neurological impairment, correlating with the participant's reported symptoms, defined as either i) increase in at least 1 of the functional systems of the Expanded Disability Status Scale (EDSS), or ii) increase of the total EDSS score.
Percentage of participants free from relapses during 36-week treatment period was reported.
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Baseline up to Week 36
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Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Serious TEAEs
Time Frame: From the first dose of study drug administration up to 12 weeks after the last dose of the study drug
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An AE was defined as any new untoward medical occurrences/worsening of pre-existing medical condition without regard to possibility of causal relationship.
An SAE was an AE that resulted in any of the following outcomes: death; life threatening; persistent/significant disability/incapacity; initial or prolonged inpatient hospitalization; congenital anomaly/birth defect.
Treatment-emergent are events between first dose of study drug up to 12 weeks after the last dose of the study drug that were absent before treatment or that worsened relative to pretreatment state.
Number of subjects with TEAEs included subjects with both non serious and serious TEAEs.
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From the first dose of study drug administration up to 12 weeks after the last dose of the study drug
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Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Study Director: Medical Responsible, EMD Serono, an affiliate of Merck KGaA Darmstadt, Germany
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 28063
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