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Phase III Comparative Study(Open-Label) of MRA for Rheumatoid Arthritis(RA)

This study has been completed.
Information provided by:
Chugai Pharmaceutical Identifier:
First received: September 2, 2005
Last updated: January 30, 2009
Last verified: January 2009
To evaluate clinical efficacy and tolerability of MRA, patients with RA are randomized to receive either MRA or conventional DMARDs.

Condition Intervention Phase
Rheumatoid Arthritis Drug: MRA (Tocilizumab) Other: current treatment Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: An Open-Label, Phase III Study to Evaluate the Efficacy and Safety of MRA in Patients With RA

Resource links provided by NLM:

Further study details as provided by Chugai Pharmaceutical:

Primary Outcome Measures:
  • Change in the erosion score, as determined by the modified Sharp method. [ Time Frame: week 52 ]
  • Frequency and severity of adverse events and adverse drug reactions [ Time Frame: throughout study ]

Secondary Outcome Measures:
  • Change in the erosion score [ Time Frame: week 28 ]
  • Changes in the joint space narrowing score and total Sharp score [ Time Frame: week 28, 52 ]

Enrollment: 306
Study Start Date: March 2003
Study Completion Date: February 2006
Primary Completion Date: May 2004 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1 Drug: MRA (Tocilizumab)
8mg /kg /4week for 52 weeks
continue current treatment
Other: current treatment
continue current treatment


Ages Eligible for Study:   20 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion criteria

  • Diagnosed as having RA, on the basis of the criteria stipulated by the American Conference on Rheumatism (ACR) in 1987.
  • With RA that has continued for at least 6 months but less than 5 years, with the date of first appearance being taken as the date of RA diagnosis.
  • Active RA despite at least one DMARD or immunosuppressant. Active disease is defined as having at least 6 tender and 6 swollen joints among 49 and 46 joints stipulated by the Japanese Rheumatism Foundation's Drug Evaluation Committee and ESR at least 30 mm/hr and CRP not less than 2.0mg/dL.

Exclusion criteria

  • Shown to have class-IV Steinbrocker's functional activity in an evaluation carried out within 4 weeks before administration of the study drug.
  • Treated with drugs that delay joint destruction (infliximab, etanercept, leflunomide, etc.) within 3 months before administration of the study drug.
  • The oral corticosteroid dose (prednisolone equivalent of up to 10 mg/day)has not been fixed 2 weeks before administration of the study drug.
  • Subjected to any of the following within 4 weeks before administration of the study drug: (i) Change in dosage of currently administered DMARDs and/or immunosuppressive agents. (ii) Plasma exchange method. (iii) Surgical treatment (operations, etc.).
  Contacts and Locations
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Please refer to this study by its identifier: NCT00144508

Sponsors and Collaborators
Chugai Pharmaceutical
Study Director: Takahiro Kakehi Chugai Pharmaceutical
  More Information

Responsible Party: Chugai Pharmaceutical Identifier: NCT00144508     History of Changes
Other Study ID Numbers: MRA012JP
Study First Received: September 2, 2005
Last Updated: January 30, 2009

Additional relevant MeSH terms:
Arthritis, Rheumatoid
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Connective Tissue Diseases
Autoimmune Diseases
Immune System Diseases processed this record on August 23, 2017