Volume 171, Issue 4 pp. 539-546
Research Paper

A phase II study of bortezomib added to rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone in patients with previously untreated indolent non-Hodgkin's lymphoma

Jonathon B. Cohen

Jonathon B. Cohen

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Jeffrey M. Switchenko

Jeffrey M. Switchenko

Biostatistics and Bioinformatics, Emory University, Atlanta, GA, USA

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Jean L. Koff

Jean L. Koff

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

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Rajni Sinha

Rajni Sinha

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Jonathan L. Kaufman

Jonathan L. Kaufman

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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H. Jean Khoury

H. Jean Khoury

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Nassoma Bumpers

Nassoma Bumpers

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Amanda Colbert

Amanda Colbert

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Amanda Hutchison-Rzepka

Amanda Hutchison-Rzepka

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Loretta J. Nastoupil

Loretta J. Nastoupil

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

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Leonard T. Heffner

Leonard T. Heffner

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Amelia A. Langston

Amelia A. Langston

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Mary Jo Lechowicz

Mary Jo Lechowicz

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Sagar Lonial

Sagar Lonial

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

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Christopher R. Flowers

Corresponding Author

Christopher R. Flowers

Hematology and Medical Oncology, Emory University, Atlanta, GA, USA

Winship Cancer Institute, Emory University, Atlanta, GA, USA

Correspondence: Christopher R. Flowers, Director, Lymphoma Program, Associate Professor, Department of Hematology & Medical Oncology, Emory University School of Medicine, 1365 Clifton Road, NE, Atlanta, GA 30322, USA.

E-mail: [email protected]

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First published: 07 August 2015
Citations: 13

Summary

Bortezomib-containing combinations are active in non-Hodgkin lymphoma (NHL) although peripheral neuropathy can limit their dose intensity. Based on our phase I findings, we conducted a phase II trial of bortezomib in combination with R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone) with a modified dose of vincristine. Patients with untreated indolent NHL received bortezomib (1·6 mg/m2) on days 1 and 8 of a 21-day cycle for up to 8 cycles and R-CHOP with a 1·5 mg cap of vincristine. Patients achieving a complete response (CR) received maintenance rituximab, and remaining patients received maintenance rituximab and bortezomib. The primary endpoint was CR rate; secondary survival analyses were evaluated using the Kaplan–Meier method. Among 29 eligible patients, NHL morphologies included follicular (n = 20), marginal zone (n = 5) and small lymphocytic lymphoma (n = 4). Nineteen patients had CR (66%) and 10 had partial response (34%), yielding a 100% overall response rate. With a median follow-up of 48·7 months, the 4-year progression-free and overall survivals were 83% and 93%. Twenty-two patients experienced peripheral neuropathy of any grade, and two had grade 3 neuropathy. The combination of bortezomib with R-CHOP is effective for indolent NHL, and we plan to evaluate therapies incorporating novel proteasome inhibitors in future studies in NHL.

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