- Restaging studies: Patients undergo restaging studies with CT scan and positron emission tomography (PET). Patients who are chemosensitive with a normal PET scan proceed to radiotherapy, HDC, and ASCT. Patients who progress on ICE, or who respond but have an abnormal PET scan, proceed to noncross-resistant chemotherapy comprising gemcitabine hydrochloride, vinorelbine, and doxorubicin HCl liposome (GND).