Rheumatoid Arthritis
Conditions
Keywords
Retention Rates, of Adalimumab, Etanercept and Infliximab, as First and Second-Line Biotherapy, in Patients with Rheumatoid Arthritis, in Daily Practice., TNF inhibitors, biotherapy, retrospective study
Brief summary
To compare retention rates of adalimumab, etanercept and infliximab as first-line biotherapy in rheumatoid arthritis (RA), to determine causes of discontinuation, retention-associated factors, and retention rates of possible second-line tumor necrosis factor α inhibitors (TNFi).
Detailed description
In this retrolective, multicentric study, medical charts of RA patients starting TNFi between March 2005 and April 2009 were reviewed, with follow-up between 2 and 6 years. The retention rate was estimated using the Kaplan-Meier method. Comparison between TNFi was done after adjustment using a Cox model. Factors associated with better retention were identified by multivariate analysis. Medical charts of all patients with RA starting a first TNFα inhibitor therapy between March 1, 2005 (start of commercialization of adalimumab in France) and April 30, 2009 (allowing at least 2 years of follow-up) were systematically reviewed in detail by 2 rheumatologist investigators
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* RA defined by the 1987 ACR criteria \[18\] * first TNFα inhibitor prescribed in the previously mentioned period * TNFα inhibitor prescribed as first-line biotherapy * undergone at least one evaluation in the center after treatment initiation
Exclusion criteria
* previously received another biotherapy * TNFα inhibitor was prescribed in an RCT * refused to participate
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Compare retention rates of adalimumab, etanercept and infliximab administered as first-line biologic therapy in RA | 2 years |
Secondary
| Measure | Time frame |
|---|---|
| Compare retention rates of TNFα inhibitor monoclonal antibodies (adalimumab and infliximab) and the soluble receptor (etanercept) | 4 years |
| Causes of discontinuing these treatments | 4 years |
| Determine the factors associated with better retention of the first TNFα inhibitors | 4 years |
| Compare retention rates of possible second-line TNFα inhibitors | 4 years |