Giant Cell Arteritis Clinical Trial
Official title:
Open Label Phase II Randomized Non-comparative Study of SC Tocilizumab Associated With IV Pulse Steroid Versus IV Pulse Steroid Alone for the Treatment of Acute Anterior Ischemic Optic Neuropathy Associated With Giant Cell Arteritis
AION is the main cause of blindness in patients with GCA. High dose steroid is the reference treatment of this condition, but medical unmet need remains. Subcutaneous tocilizumab, a targeted biotherapy, recently received marketing authorization for the treatment of GCA, but only demonstrated at yet that it can allow steroid dose sparing. The aim of this study is to assess the benefit of tocilizumab and IV steroids combination or IV steroids alone, in the treatment of AION due to GCA.
Tocilizumab will be proposed to eligible patients as an emergency treatment, in addition to the standard high-dose steroid treatment. Each patient will receive the reference treatment, i.e. one pulse of high dose intravenous methylprednisolone per day during 3 days, followed by 1 mg/kg/day oral prednisone, and low dose aspirin. Depending on the randomization, each patient will receive the reference treatment only, or will received in addition to the reference treatment four subcutaneous injections of tocilizumab 162 mg over one month (1 injection per week), the first tocilizumab injection being delivered on the same day than the first steroid IV pulse. Study visits will take place at 4, 8 and 13 weeks. The primary endpoint will be the ocular improvement at W8, defined as an increase of at least two lines of visual acuity on the ETRS chart. For each patient, the duration of participation will by of 3 months. The study duration is expected to be 15 months. ;
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