Ontology highlight
ABSTRACT: Purpose
Ganetespib is a novel inhibitor of the heat shock protein 90 (Hsp90), a chaperone protein critical to tumor growth and proliferation. In this phase II study, we evaluated the activity and tolerability of ganetespib in previously treated patients with non-small cell lung cancer (NSCLC).Experimental design
Patients were enrolled into cohort A (mutant EGFR), B (mutant KRAS), or C (no EGFR or KRAS mutations). Patients were treated with 200 mg/m(2) ganetespib by intravenous infusion once weekly for 3 weeks followed by 1 week of rest, until disease progression. The primary endpoint was progression-free survival (PFS) at 16 weeks. Secondary endpoints included objective response (ORR), duration of treatment, tolerability, median PFS, overall survival (OS), and correlative studies.Results
Ninety-nine patients with a median of 2 prior systemic therapies were enrolled; 98 were assigned to cohort A (n = 15), B (n = 17), or C (n = 66), with PFS rates at 16 weeks of 13.3%, 5.9%, and 19.7%, respectively. Four patients (4%) achieved partial response (PR); all had disease that harbored anaplastic lymphoma kinase (ALK) gene rearrangement, retrospectively detected by FISH (n = 1) or PCR-based assays (n = 3), in crizotinib-naïve patients enrolled to cohort C. Eight patients (8.1%) experienced treatment-related serious adverse events (AE); 2 of these (cardiac arrest and renal failure) resulted in death. The most common AEs were diarrhea, fatigue, nausea, and anorexia.Conclusions
Ganetespib monotherapy showed a manageable side effect profile as well as clinical activity in heavily pretreated patients with advanced NSCLCs, particularly in patients with tumors harboring ALK gene rearrangement.
SUBMITTER: Socinski MA
PROVIDER: S-EPMC3874465 | biostudies-literature | 2013 Jun
REPOSITORIES: biostudies-literature
Socinski Mark A MA Goldman Jonathan J El-Hariry Iman I Koczywas Marianna M Vukovic Vojo V Horn Leora L Paschold Eugene E Salgia Ravi R West Howard H Sequist Lecia V LV Bonomi Philip P Brahmer Julie J Chen Lin-Chi LC Sandler Alan A Belani Chandra P CP Webb Timothy T Harper Harry H Huberman Mark M Ramalingam Suresh S Wong Kwok-Kin KK Teofilovici Florentina F Guo Wei W Shapiro Geoffrey I GI
Clinical cancer research : an official journal of the American Association for Cancer Research 20130403 11
<h4>Purpose</h4>Ganetespib is a novel inhibitor of the heat shock protein 90 (Hsp90), a chaperone protein critical to tumor growth and proliferation. In this phase II study, we evaluated the activity and tolerability of ganetespib in previously treated patients with non-small cell lung cancer (NSCLC).<h4>Experimental design</h4>Patients were enrolled into cohort A (mutant EGFR), B (mutant KRAS), or C (no EGFR or KRAS mutations). Patients were treated with 200 mg/m(2) ganetespib by intravenous in ...[more]