8. Any other situation raising problems for maintenance of stable doses of steroids and immunosuppressive drugs during the period between 4 weeks before D0 and the M2 evaluation. Authorized immunosuppressive therapies that must be maintained at stable dose are steroid eye drops, systemic steroid therapy and once weekly oral or subcutaneous MTX at a dose of 0.3 to 0.6 mg (without exceeding 25 mg).