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Published on: February 12, 2017
Standard versus low-dose nab-paclitaxel in previously treated patients with advanced non-small cell lung cancer: A
Susumu Takeuchi1, Kaoru Kubota1, Shunichi Sugawara2
1Department of Pulmonary Medicine and Oncology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan.
Background:
Nab-paclitaxel (nab-PTX) has better transfer to tumor tissue than cremophor-based paclitaxel. It suggests that the optimum dose of nab-PTX might be lower than the dose and schedule that is widely used. We designed a randomized phase II trial to examine the clinical utility and safety of nab-PTX in patients with previously treated advanced non-small cell lung cancer (NSCLC).
Methods:
Patients were randomly allocated (1:1) to receive nab-PTX monotherapy at 100 mg/m2 (group A) or 70 mg/m2 (group B). The primary endpoint was progression-free survival (PFS). Secondary endpoints included overall survival (OS), objective response rate (ORR), and adverse events (AEs).
Results:
Finally, 81 patients were randomized. Similar results were observed in both groups for PFS (3.75 vs. 3.71 months), OS (13.50 vs. 16.13 months), or ORR (20.5% vs. 23.1%). The incidences of grade 3 or worse AEs were 57.5% in group A and 41.5% in group B. The proportion of serious side effects was 10.0% in group A and 4.9% in group B.
Conclusion:
Both standard dose and low dose of nab-PTX monotherapy are active for previously treated NSCLC patients with better safety profile. Therefore, nab-PTX 70 mg/m2 dose and schedule in the trial would be a reasonable option.
