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Integrated safety profile of single-agent carfilzomib: experience from 526 patients enrolled in 4 phase II clinical studies.

TitleIntegrated safety profile of single-agent carfilzomib: experience from 526 patients enrolled in 4 phase II clinical studies.
Publication TypeJournal Article
Year of Publication2013
AuthorsSiegel D, Martin T, Nooka A, R Harvey D, Vij R, Niesvizky R, Badros AZ, Jagannath S, McCulloch L, Rajangam K, Lonial S
JournalHaematologica
Volume98
Issue11
Pagination1753-61
Date Published2013 Nov
ISSN1592-8721
KeywordsAdult, Aged, Aged, 80 and over, Female, Heart Diseases, Humans, Kidney Diseases, Male, Middle Aged, Multiple Myeloma, Neutropenia, Oligopeptides, Proteasome Inhibitors, Survival Rate, Treatment Outcome
Abstract

Carfilzomib, a selective proteasome inhibitor, was approved in 2012 for the treatment of relapsed and refractory multiple myeloma. Safety data for single-agent carfilzomib have been analyzed for 526 patients with advanced multiple myeloma who took part in one of 4 phase II studies (PX-171-003-A0, PX-171-003-A1, PX-171-004, and PX-171-005). Overall analyses of adverse events and treatment modifications are presented, as well as specific analyses of adverse events by organ system. Overall, the most common adverse events of any grade included fatigue (55.5%), anemia (46.8%), and nausea (44.9%). In the grouped analyses, any grade adverse events were reported in 22.1% for any cardiac (7.2% cardiac failure), 69.0% for any respiratory (42.2% dyspnea), and 33.1% for any grouped renal impairment adverse event (24.1% increased serum creatinine). The most common non-hematologic adverse events were generally Grade 1 or 2 in severity, while Grade 3/4 adverse events were primarily hematologic and mostly reversible. There was no evidence of cumulative bone marrow suppression, either neutropenia or thrombocytopenia, and febrile neutropenia occurred infrequently (1.1%). Notably, the incidence of peripheral neuropathy was low overall (13.9%), including patients with baseline peripheral neuropathy (12.7%). Additionally, the incidence of discontinuations or dose reductions attributable to adverse events was low. These data demonstrate that single-agent carfilzomib has an acceptable safety profile in heavily pre-treated patients with relapsed/refractory multiple myeloma. The tolerable safety profile allows for administration of full-dose carfilzomib, both for extended periods and in a wide spectrum of patients with advanced multiple myeloma, including those with pre-existing comorbidities.

DOI10.3324/haematol.2013.089334
Alternate JournalHaematologica
PubMed ID23935022
PubMed Central IDPMC3815177