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Phase 1/1B trial of the heat shock protein 90 inhibitor NVP-AUY922 as monotherapy or in combination with bortezomib in patients with relapsed or refractory multiple myeloma

Seggewiss-Bernhardt, Ruth, Bargou, Ralf C., Goh, Yeow Tee, Stewart, A. Keith, Spencer, Andrew, Alegre, Adrian, Blade, Joan, Ottmann, Oliver, Fernandez-Ibarra, Cristina, Lu, Hong, Pain, Scott, Akimov, Mikhail and Iyer, Swaminathan Padmanabhan 2015. Phase 1/1B trial of the heat shock protein 90 inhibitor NVP-AUY922 as monotherapy or in combination with bortezomib in patients with relapsed or refractory multiple myeloma. Cancer 121 (13) , pp. 2185-2192. 10.1002/cncr.29339

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Abstract

BACKGROUND NVP‐AUY922 (AUY; Luminespib) with or without bortezomib showed preclinical activity against multiple myeloma (MM) cells. This phase 1/1B study assessed NVP‐AUY922 alone and with bortezomib in patients with relapsed or refractory MM. METHODS Dose escalation was guided by an adaptive Bayesian logistic regression model. In phase 1, patients who progressed after 2 to 4 prior therapies received NVP‐AUY922 intravenously once weekly. In phase 1B, patients who progressed after 2 or fewer prior therapies received NVP‐AUY922 plus bortezomib. The primary objective was to determine the maximum tolerated dose (MTD) of NVP‐AUY922. RESULTS Twenty‐four patients received NVP‐AUY922 monotherapy at doses of 8 to 70 mg/m2. One dose‐limiting toxicity (DLT) was observed (grade 3 blurred vision at 70 mg/m2); no MTD was reached. The recommended phase 2 dose was 70 mg/m2. The most frequent drug‐related adverse events (AEs) were diarrhea, nausea, and ocular toxicities. Grade 3/4 AEs were uncommon (<10%). Eight patients discontinued treatment because of AEs; 5 had ocular toxicities (≥45 mg/m2). The best response was stable disease in 66.7% of the patients. There were no partial or complete responses. Five patients received NVP‐AUY922 (which was started at 50 mg/m2) plus bortezomib (1.3 mg/m2). Three of these patients experienced DLT. No further dose escalation was performed; the MTD for NVP‐AUY922 plus bortezomib was not established. CONCLUSIONS This study showed disease stabilization with NVP‐AUY922 in patients with relapsed or refractory MM. The MTD for NVP‐AUY922 was not reached, but reversible ocular toxicity has been reported at high dose levels. Bortezomib at the standard recommended dose plus NVP‐AUY922 was not tolerated.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Publisher: Wiley-Blackwell
ISSN: 1097-0142
Date of Acceptance: 20 January 2015
Last Modified: 14 Jun 2019 10:15
URI: http://orca-mwe.cf.ac.uk/id/eprint/96768

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