Dataset Information

An open-label, single-arm, phase 2 study of single-agent carfilzomib in patients with relapsed and/or refractory multiple myeloma who have been previously treated with bortezomib.

ABSTRACT: Carfilzomib is a next-generation proteasome inhibitor that selectively and irreversibly binds to its target. In clinical studies, carfilzomib has shown efficacy in patients with relapsed and/or refractory multiple myeloma (MM) and has demonstrated a tolerable safety profile. In this phase 2, open-label, multicentre clinical trial, 35 patients with relapsed and/or refractory MM following 1-3 prior therapies, including at least one bortezomib-based regimen, received carfilzomib 20 mg/m(2) in a twice-weekly, consecutive-day dosing schedule for ?12 monthly cycles. The best overall response rate (ORR) was 17·1% and the clinical benefit response rate (ORR + minimal response) was 31·4%. The median duration of response was >10·6 months and the median time to progression was 4·6 months. The most common adverse events were fatigue (62·9%), nausea (60·0%), and vomiting (42·9%). No exacerbation of baseline peripheral neuropathy was observed. Single-agent carfilzomib was generally well tolerated for up to 12 treatment cycles and showed activity in patients with relapsed and/or refractory MM who had received prior treatment with bortezomib. These data, combined with an acceptable toxicity profile, support the potential use of carfilzomib in patients with relapsed and/or refractory MM and warrant continued investigation of carfilzomib as single agent or in combination with other agents.

SUBMITTER: Vij R

PROVIDER: S-EPMC5818209 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature

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An open-label, single-arm, phase 2 study of single-agent carfilzomib in patients with relapsed and/or refractory multiple myeloma who have been previously treated with bortezomib.

Vij Ravi R Siegel David S DS Jagannath Sundar S Jakubowiak Andrzej J AJ Stewart Alexander Keith AK McDonagh Kevin K Bahlis Nizar N Belch Andrew A Kunkel Lori A LA Wear Sandra S Wong Alvin F AF Wang Michael M

British journal of haematology 20120730 6

Carfilzomib is a next-generation proteasome inhibitor that selectively and irreversibly binds to its target. In clinical studies, carfilzomib has shown efficacy in patients with relapsed and/or refractory multiple myeloma (MM) and has demonstrated a tolerable safety profile. In this phase 2, open-label, multicentre clinical trial, 35 patients with relapsed and/or refractory MM following 1-3 prior therapies, including at least one bortezomib-based regimen, received carfilzomib 20 mg/m(2) in a twi ...[more]

PMID: 22845873

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Project description:IntroductionPanobinostat, bortezomib, and dexamethasone combination therapy demonstrated progression-free survival (PFS) benefit over bortezomib and dexamethasone alone in the PANORAMA-1 study in relapsed/refractory multiple myeloma (MM). Here, we present data from a phase II study (NCT02290431) of this combination in Japanese patients with relapsed or relapsed-and-refractory MM.MethodsPatients received 3-week cycles of 20-mg oral panobinostat (weeks 1 and 2), 1.3-mg/m2 subcutaneous bortezomib (days 1, 4, 8, and 11), and 20-mg oral dexamethasone (day of and the day following bortezomib administration) for a total of 8 cycles (24 weeks; treatment phase 1). Patients with treatment benefit had an option to enter the extension phase to receive 6-week (42-day) cycles of panobinostat (weeks 1, 2, 4, and 5) plus bortezomib (days 1, 8, 22, and 29) and dexamethasone (day of and the day following bortezomib treatment) for 24 weeks. The primary objective was complete response (CR) + near CR (nCR) rate after treatment phase 1 as per the modified European Society for Blood and Marrow Transplantation criteria.ResultsOf the 31 patients, 4 (12.9%) completed the treatment and 27 (87.1%) discontinued; 17 (54.8%) entered the extension phase. In total, 24 patients (77.4%) entered the survival follow-up phase and followed until study closure when the last patient was treated for 1 year after treatment phase 1. The CR + nCR rate was 48.4% (90% CI: 33.6-63.2). The overall response rate (CR + nCR + partial response) was 80.6%. The median PFS, duration of response, time to response, and time to progression were 15.3, 22.7, 1.4, and 15.3 months, respectively. All patients experienced adverse events (AEs), with diarrhea (80.6%), decreased appetite (58.1%), and thrombocytopenia (54.8%) being the most frequent, regardless of relationship to the study treatment. Thrombocytopenia (48.4%), fatigue (25.8%), diarrhea (22.6%), neutrophil count decrease (22.6%), platelet count decrease (22.6%), and lymphocyte count decrease (22.6%) were the most frequent grade 3/4 AEs.ConclusionThe study met the primary objective with 48.4% CR + nCR rate. The AEs associated with the combination treatment were safely managed using the existing AE management guidelines, including dose interruption/modification and/or supportive medical intervention. This treatment regimen is an effective option with a favorable benefit/risk profile for Japanese patients with relapsed/refractory MM.

Dataset Information

An open-label, single-arm, phase 2 study of single-agent carfilzomib in patients with relapsed and/or refractory multiple myeloma who have been previously treated with bortezomib.

Publications

An open-label, single-arm, phase 2 study of single-agent carfilzomib in patients with relapsed and/or refractory multiple myeloma who have been previously treated with bortezomib.

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