The report containing 2 year effects is at this time only in abstract type but displays that lowered disease action was maintained with ongoing abatacept therapy.
To date, this is a distinctive observation amongst biologic therapies for RA. The extended term ecacy and safety of abatacept have been demonstrated above 5 years with a dose Docetaxel of 10 mg/kg. In a long term extension trial, abatacept was well tolerated and provided durable improvements in disease activity, with no unique safety events reported. These data, combined with relatively high retention rates, conrm that abatacept provides sustained clinical benets in RA. Additionally, abatacept has been shown to provide clinical benets in patients with RA who have previously failed TNF inhibitor treatment, regardless of the previous TNF inhibitor used or the reason for treatment failure. This nding suggests that switching to abatacept may be a useful option for patients who fail TNF inhibitor treatment.
Tocilizumab has also demonstrated ecacy in RA patients who fail to achieve an adequate response with or became refractory to TNF inhibitors. There is a close relationship between normalisation of serum IL 6 levels following treatment with tocilizumab and clinical remission. In the phase III SATORI trial, patients NSCLC whose serum IL 6 levels became normal tended to achieve DAS28 remission. Normal IL 6 levels may therefore provide a good marker to identify patients who can stop tocilizumab treatment without the risk of aring. In the 3 year extension of the SAMURAI study, patients with early RA treated with tocilizumab exhibited strongly suppressed radiographic progression.
Certolizumab was approved for treatment of RA in combination with MTX in the United States and Europe in 2009.
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