Phase II Study of Cabazitaxel-XRP6258 in Advanced Non-Small Cell Lung Cancer

A substantial number of patients with lung cancer progress after first line treatment and require second line chemotherapy. Lung cancer appears to account for 40-50% of all known brain metastasis. The incidence of brain metastases among lung cancer patients ranges from 16-20%. Chemotherapy has had limited utility due to problems crossing the blood brain barrier. Currently there are three drugs approved by the FDA for second line treatment of NSCLC but each has distinct toxicities. Cabazitaxel-XRP6258 is a potent novel taxane with enhanced activity against an increased number of cell lines including lung, prostate, colon, pancreas, head and neck, kidney, gastric, glioblastoma, and melanoma. It also has the ability to cross the blood brain barrier. Cabazitaxel-XRP6258 was found to have an improved antiproliferative activity than other chemotherapy agents against insensitive cell lines. The Phase I studies of Cabazitaxel-SRP6258 have determined dosage and schedule recommendations in advanced NSCLC patients to be utilized for a Phase II multicenter study. Subjects will be placed on one of two schedules (A or B) each with a specified dosage and administration schedule. All subjects will be followed for survival/progression after every 2 cycles of therapy with imaging studies. A two stage design will be used for each of the two schedules. Fourteen subjects will be accrued for each schedule in the first stage with possible accrual of an additional 34 subjects per schedule depending upon the first stage results.