Clinical Trial: Cyclophosphamide vs. Infliximab for Refractory Idiopathic Scleritis (CIRIS)

Study Status: Not yet recruiting
Recruit Status: Not yet recruiting
Study Type: Interventional




Official Title: A Multicenter Randomized Open-label Trial Comparing the Efficacy and Safety of Infliximab Versus Cyclophosphamide in Subjects With Idiopathic Refractory Scleritis

Brief Summary:

This study will evaluate the Efficacy and Safety of Infliximab versus Cyclophosphamide in Subjects with Idiopathic Refractory Scleritis.

The term scleritis describes a chronic inflammation that involves the outermost cost and skeleton of the eye. Scleritis is classified anatomically as either anterior or posterior based on the principal location of the inflammation. Thirty to forty percent of scleritis cases are associated with systemic autoimmune conditions including rheumatoid arthritis and granulomatosis with polyangiitis. Infectious causes including herpes virus and varicella zoster account for 5 to 10% of patients. The remaining 50% of cases are classified as idiopathic.

CIRIS, is the first prospective randomized, head to head study, comparing infliximab to cyclophosphamide in refractory idiopathic scleritis. There is no firm evidence or randomized controlled trials directly addressing the best biologic agent in severe and refractory idiopathic scleritis. If left untreated or insufficiently treated, scleritis can progress to peripheral ulcerative keratitis, uveitis and glaucoma. Visual loss occurs in approximately 10% of patients with anterior scleritis and in up to 75% of patients with posterior scleritis. The incidence of burden in ocular inflammation (uveitis and scleritis) has been dramatically reduced in the recent years with the use of biologics, raising the question of whether these compounds should be used earlier in the treatment of severe non infectious scleritis. Contrasting with other immunosuppressors, cyclophosphamide and infliximab act rapidly and are highly effective in steroid's sparing.

Despite a strong rationale, these compounds are not yet approved in idiopathic refractory scleritis, which guarantees the innovative nature of this study that aims sel