Giant Cell Arteritis Clinical Trial
Official title:
Efficacy of Tocilizumab in Association to Steroids in Giant Cell Arteritis With Cerebro-vascular Involvement (ToGiAC)
A French multicenter randomised and placebo-controlled study recruiting patients who present neurovascular involvement related to GCA (> 60 years) with symptomatic (stroke) or asymptomatic forms. The aim of this study is to assess the efficacy of tocilizumab to induce complete remission of GCA with cerebrovascular involvement (clinical and biological) and absence of clinical and MRI ischemic stroke recurrence at 24 weeks.
Giant cell arteritis (GCA) in the elderly is considered a medical emergency in case of ischemic complication, urgent treatment is needed and high doses of intravenous steroids are used. To date, usual treatments added to steroids have not been shown to be effective in reducing the risk of ischemic event recurrence in GCA. Recently, the efficacy of tocilizumab has been demonstrated as a steroid-sparing agent and a long-term complete remission agent. The aim of this study is to address the potential benefits of tocilizumab as induction therapy in combination with high dose steroids to improve the neurovascular involvement in GCA. The study will enroll 66 subjects with GCA (according to ACR criteria or positive temporal artery biopsy) and neurovascular involvement (symptomatic or asymptomatic). It consist of a screening phase (up to 30 days), a baseline/randomization phase and a treatment phase with experimental treatment or placebo (weekly administrated) which could be combined with usual treatments for stroke as antiaggregants and/or anticoagulants (24 weeks). Regular visit will be performed to follow the GCA remission, adverse treatments effects and proceed to radiological and biological evaluations (visit assessment at weeks 2, 4, 8, 12, 16, 20, 24, 28, 32, 36) until end of study visit at week 52. ;
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