Female patients of child-bearing potential (pre-menopausal and not surgically sterilized) who are breast-feeding or have a positive blood beta-human chorionic gonadotropin pregnancy test at Screening Positive beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization; Negative pregnancy test in female patients of childbearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization. Women of child bearing potential must be willing to use an effective contraceptive measure while on study. Positive beta HCG test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization and willing to use an effective contraceptive measure while on study. Positive beta HCG in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or breast-feeding. Positive beta human chorionic gonadotropin (HCG) in female of child-bearing potential defined as not postmenopausal for 24 months or no previous surgical sterilization or lactating females. Positive beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Negative beta HCG test in a woman with child bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization; women of child bearing potential must be willing to use an effective contraceptive measure while on study Negative pregnancy test in a woman with childbearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months Positive beta human chorionic gonadotropin (HCG) in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or lactating females Pregnancy (positive beta human chorionic gonadotropin [HCG] test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization) or currently breast-feeding; pregnancy testing is not required for post-menopausal or surgically sterilized women Negative beta-human chorionic gonadotropin (HCG) test in a woman of child-bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization Negative pregnancy test in female patients of childbearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization; women of child bearing potential must be willing to use an effective contraceptive measure while on study Positive pregnancy test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization; women of child bearing potential must be willing to use an effective contraceptive measure while on study Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months and no previous surgical sterilization Positive pregnancy test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Pregnancy: positive pregnancy test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Pregnancy (positive beta human chorionic gonadotropin [HCG] test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization) or currently breast-feeding; pregnancy testing is not required for post-menopausal or surgically sterilized women Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential (defined as not post-menopausal for 12 months or no previous surgical sterilization) or currently breast-feeding; pregnancy testing is not required for post-menopausal or surgically sterilized women Positive pregnancy test in a female patient of childbearing potential defined as not post-menopausal for twelve months or no previous surgical sterilization Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 24 months or no previous surgical sterilization and willing to ongoing pregnancy testing while on treatment with lenalidomide Positive beta human chorionic gonadotropin (HCG) in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or lactating females. Positive beta human chorionic gonadotropin (HCG) in female of child-bearing potential defined as not postmenopausal for 24 months or no previous surgical sterilization or lactating females Negative pregnancy test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Positive beta human chorionic gonadotropin (HCG) in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or lactating females Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization; women of child bearing potential must be willing to use an effective contraceptive measure while on study Patient of child-bearing potential is evidently pregnant (eg, positive human chorionic gonadotropin test) or is breast feeding; a woman with child bearing potential is defined as not surgically sterile or being post-menopausal for less than 6 months Negative beta human chorionic gonadotropin (HCG) test within 30 days in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization); pregnancy testing is not required for post-menopausal or surgically sterilized women Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization; women of child bearing potential must be willing to use an effective contraceptive measure while on study Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization and willing to use an effective contraceptive measure while on study Positive beta HCG in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or breast-feeding Negative beta human chorionic gonadotropin (HCG) test in a woman with childbearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization and if fertile, males and females must agree to use contraceptives Positive beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization Pregnant (Positive Beta HCG test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization) or currently breast-feeding. Pregnancy testing is not required for post-menopausal or surgically sterilized women. Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization and willing to use an effective contraceptive measure while on study Positive beta HCG in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or breast-feeding Negative beta human chorionic gonadotropin (HCG) test in a woman with child-bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization and willing to ongoing pregnancy testing while on treatment with lenalidomide Positive beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization Negative beta human chorionic gonadotropin (HCG) test in a woman with child bearing potential defined as not post-menopausal for 12 months and no previous surgical sterilization Negative beta human chorionic gonadotropin (HCG) test in woman with child bearing potential, defined as not post-menopausal for 12 months or no previous sterilization Positive beta-human chorionic gonadotropin (HCG) in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or lactating females Positive beta human chorionic gonadotropin (HCG) within 7 days prior to consent in female of child-bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization or breast-feeding