<qa>  What is the name of the treatment that may be considered for maintenance therapy?Patients whose disease remains under control with cessation of all steroids may begin maintenance ECP, 2 days in a row every 4 weeks for an additional 20 weeks another 10 treatments, with the same follow-up as described above, and a full physical examination 4 weeks after the final treatment. Patients who were able to reduce, but not stop, steroid treatment may be considered for maintenance therapy if it is thought that continuing treatment may enable further reduction of steroids. Patients whose disease symptoms worsen with ECP or who have not been able to decrease their steroid dose will not be eligible for maintenance therapy and their participation in the study will end. 