Medline ® Abstract for Reference 171
A phase II trial of nab-Paclitaxel as second-line therapy in patients with advanced pancreatic cancer.
Hosein PJ, de Lima Lopes G Jr, Pastorini VH, Gomez C, Macintyre J, Zayas G, Reis I, Montero AJ, Merchan JR, Rocha Lima CM
Am J Clin Oncol. 2013;36(2):151.
OBJECTIVE: nab-Paclitaxel has been shown to disrupt pancreatic cancer stroma and was effective in combination with gemcitabine in a phase I/II trial. This study was designed to determine the efficacy of nab-paclitaxel monotherapy in previously treated pancreatic cancer patients.
METHODS: In this phase II trial, patients with advanced pancreatic cancer who progressed on gemcitabine-based therapy, received nab-paclitaxel 100 mg/m over 30 minutes on days 1, 8, and 15 of a 28-day cycle. The primary endpoint was 6-month overall survival (OS). Secondary endpoints were response rate (by Response Evaluation Criteria In Solid Tumors), progression-free survival, safety, and toxicity profile.
RESULTS: Among 19 patients treated, the median age was 61 years, 9 (47%) were male patients and 18 (95%) had stage-IV disease. The primary endpoint of the study was reached with a 6-month OS of 58% [95% confidence interval (95% CI), 33%-76%]and an estimated median OS of 7.3 months (95% CI, 2.8-15.8 mo). The median progression-free survival was 1.7 months (95% CI, 1.5-3.5 mo). One patient had a confirmed partial response and 6 (32%) had stable disease as their best response. Nonhematological toxicities were generally mild with grades 1-2 nausea, anorexia, hypocalcemia, and vomiting occurring in 63%, 47%, 37%, and 26% of patients, respectively. Grades 3-4 neutropenia, neutropenic fever, and anemia occurred in 32%, 11%, and 11% of patients, respectively. Only 2 of 15 available tumors stained positive for secreted protein acid rich in cysteine, and neither of these patients benefited from the therapy.
CONCLUSIONS: nab-Paclitaxel was well tolerated, and it demonstrated preliminary evidence of activity in a subset of patients who progressed on gemcitabine-based therapy.
*Department of Medicine, Division of Hematology/Oncology, Miller School of Medicine, University of Miami, Miami, FL†Department of Oncology, Johns Hopkins Singapore International Medical Center, Singapore, Republic of Singapore.