To evaluate safety and tolerability associated with the combination of ATRA/ celecoxib/itraconazole given after a salvage transplant for relapsed myeloma in 25 patients in a cycle schedule consisting of three weeks of treatment followed by a rest period of two weeks for a total of five cycles. Subjects will be evaluable only if they have received at least one dose of maintenance treatment. The salvage transplant is not part of this study.