TY - JOUR
T1 - A phase I study of a 2-day lapatinib chemosensitization pulse preceding nanoparticle albumin-bound paclitaxel for advanced solid malignancies
AU - Chien, Amy J.
AU - Illi, Julie A.
AU - Ko, Andrew H.
AU - Korn, Wolfgang M.
AU - Fong, Lawrence
AU - Chen, Lee May
AU - Kashani-Sabet, Mohammed
AU - Ryan, Charles J.
AU - Rosenberg, Jonathan E.
AU - Dubey, Sarita
AU - Small, Eric J.
AU - Jahan, Thierry M.
AU - Hylton, Nola M.
AU - Yeh, Benjamin M.
AU - Huang, Yong
AU - Koch, Kevin M.
AU - Moasser, Mark M.
PY - 2009/9/1
Y1 - 2009/9/1
N2 - Purpose: Systemic chemotherapy fails to access much of the tumor burden in patients with advanced cancer, significantly limiting its efficacy. In preclinical studies, brief high doses of tyrosine kinase inhibitors (TKI) targeting the human epidermal growth factor receptor (HER) family can prime tumor vasculature for optimal chemotherapeutic delivery and efficacy. This study investigates the clinical relevance of this approach. Experimental Design: A phase I clinical study of escalating doses of the HER TKI lapatinib given as a 2-day pulse before a weekly infusion of nab-paclitaxel (100 mg/m2) was conducted in patients with advanced solid tumors. Results: Twenty-five patients were treated. Treatment was associated with grade 1 to 2 toxicities including diarrhea, nausea, rash, neutropenia, neuropathy, fatigue, alopecia, and anemia. The two dose-limiting toxicities were grade 3 vomiting and grade 4 neutropenia, and the maximum tolerated dose of lapatinib was defined as 5250 mg/day in divided doses. Lapatinib concentrations increased with increasing dose. Dynamic Contrast Enhanced Magnetic Resonance Imaging studies in a subset of patients confirmed a decrease in tumor vascular permeability immediately following a lapatinib pulse. Sixty-five percent of evaluable patients experienced a partial or stable response on this therapy, 72% of whom were previously taxane-refractory. Conclusion: A 2-day pulse of high-dose lapatinib given before weekly nab-paclitaxel is a feasible and tolerable clinical regimen, suitable for testing this novel vascular-priming chemosensitization hypothesis developed in preclinical models.
AB - Purpose: Systemic chemotherapy fails to access much of the tumor burden in patients with advanced cancer, significantly limiting its efficacy. In preclinical studies, brief high doses of tyrosine kinase inhibitors (TKI) targeting the human epidermal growth factor receptor (HER) family can prime tumor vasculature for optimal chemotherapeutic delivery and efficacy. This study investigates the clinical relevance of this approach. Experimental Design: A phase I clinical study of escalating doses of the HER TKI lapatinib given as a 2-day pulse before a weekly infusion of nab-paclitaxel (100 mg/m2) was conducted in patients with advanced solid tumors. Results: Twenty-five patients were treated. Treatment was associated with grade 1 to 2 toxicities including diarrhea, nausea, rash, neutropenia, neuropathy, fatigue, alopecia, and anemia. The two dose-limiting toxicities were grade 3 vomiting and grade 4 neutropenia, and the maximum tolerated dose of lapatinib was defined as 5250 mg/day in divided doses. Lapatinib concentrations increased with increasing dose. Dynamic Contrast Enhanced Magnetic Resonance Imaging studies in a subset of patients confirmed a decrease in tumor vascular permeability immediately following a lapatinib pulse. Sixty-five percent of evaluable patients experienced a partial or stable response on this therapy, 72% of whom were previously taxane-refractory. Conclusion: A 2-day pulse of high-dose lapatinib given before weekly nab-paclitaxel is a feasible and tolerable clinical regimen, suitable for testing this novel vascular-priming chemosensitization hypothesis developed in preclinical models.
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U2 - 10.1158/1078-0432.CCR-09-0522
DO - 10.1158/1078-0432.CCR-09-0522
M3 - Article
C2 - 19706807
AN - SCOPUS:69949100006
SN - 1078-0432
VL - 15
SP - 5569
EP - 5575
JO - Clinical Cancer Research
JF - Clinical Cancer Research
IS - 17
ER -