In order to take part in this study, you must register into and follow the requirements of the POMALYST REMS™ program of Celgene Corporation. This program provides education and counseling on the risks of exposing unborn children to the study drug, and the risks of blood clots and reduced blood counts. You will be required to receive counseling, follow the pregnancy testing and birth control requirements of the program that are appropriate for you, and take surveys regarding how well you are following with the POMALYST REMS™ program.