sentences:  Phase III clinical trial data has suggested that fenretinide reduces breast cancer relapse in pre-menopausal women.Common side effects associated with fenretinide treatment include skin dryness and night-blindness, which is reversible upon cessation of treatment.Specific types of cancer under investigation include or have included ovarian, prostate, cervical, lung, renal, bladder, breast, glioma, skin, head and neck carcinoma, non-Hodgkin's lymphoma, neuroblastoma, and Ewing's sarcoma.