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Efficacy and safety of various repeat treatment dosing regimens of rituximab in patients with active rheumatoid arthritis: results of a Phase III randomized study (MIRROR)
- Source :
- Rheumatology (Oxford, England), Rheumatology (Oxford, England), 49(9), 1683-1693. Oxford University Press
- Publication Year :
- 2010
-
Abstract
- Objective. To evaluate the efficacy and safety of three dosing and repeat treatment regimens of rituximab (RTX) plus MTX in patients with active RA. Methods. Patients with active RA despite stable MTX (10–25 mg/week) were randomly assigned to one of the three treatment regimens comprising two courses of RTX given 24 weeks apart: 2 × 500 and 2 × 500 mg; 2 × 500 and 2 × 1000 mg (dose escalation); and 2 × 1000 and 2 × 1000 mg. The primary endpoint was proportion of patients achieving ACR20 at Week 48. Results. At Week 48, ACR20 responses were not statistically significantly different between the dose regimens. Compared with RTX 2 × 500 mg (n = 134) or dose escalation (n = 119), ACR and European League Against Rheumatism (EULAR) outcomes in the RTX 2 × 1000 mg group (n = 93) were consistently higher, with significantly more patients achieving EULAR responses (P = 0.0495). At Week 48, rituximab 2 × 1000 mg was associated with a higher proportion of patients who, following retreatment, maintained or improved their Week 24 responses. Dose escalation from 2 × 500 to 2 × 1000 mg did not appear to be associated with improved outcomes compared with continual 2 × 500 mg. All RTX regimens demonstrated comparable safety. Conclusions. RTX 2 × 500 and 2 × 1000 mg could not be clearly differentiated, although some efficacy outcomes suggest improved outcomes in the rituximab 2 × 1000 mg group. Retreatment from Week 24 resulted in a sustained suppression of disease activity through to Week 48. Trial registration. ClinicalTrials.gov, http://clinicaltrials.gov/, NCT00422383.
- Subjects :
- Male
Gastroenterology
law.invention
Arthritis, Rheumatoid
Antibodies, Monoclonal, Murine-Derived
Adult
Aged
Antirheumatic Agents
Dose-Response Relationship, Drug
Drug Administration Schedule
Female
Humans
Middle Aged
Treatment Outcome
Randomized controlled trial
law
Rheumatoid
Monoclonal
Clinical endpoint
Medicine
Pharmacology (medical)
B-cell depletion
Clinical Science
Repeat treatment
Rheumatoid arthritis
Rituximab
Drug
medicine.drug
Murine-Derived
medicine.medical_specialty
Antibodies
Dose-Response Relationship
Phase III
Rheumatology
Internal medicine
In patient
Dosing
business.industry
Arthritis
medicine.disease
Surgery
Clinical trial
business
Rheumatism
Subjects
Details
- Language :
- English
- ISSN :
- 14620324
- Database :
- OpenAIRE
- Journal :
- Rheumatology (Oxford, England), Rheumatology (Oxford, England), 49(9), 1683-1693. Oxford University Press
- Accession number :
- edsair.doi.dedup.....0a41b182bf39f344987bb981fdd06fa7