Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide

Novel agents such as thalidomide, lenalidomide, and bortezomib have been shown to possess potent activity against multiple myeloma. However, the treatment strategy for patients who acquired resistance to these agents has not been established. In addition to switching drug classes, intensified treatm...

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Main Authors: Shigeki Ito, Tatsuo Oyake, Kazunori Murai, Yoji Ishida
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Case Reports in Hematology
Online Access:http://dx.doi.org/10.1155/2013/651902
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author Shigeki Ito
Tatsuo Oyake
Kazunori Murai
Yoji Ishida
author_facet Shigeki Ito
Tatsuo Oyake
Kazunori Murai
Yoji Ishida
author_sort Shigeki Ito
collection DOAJ
description Novel agents such as thalidomide, lenalidomide, and bortezomib have been shown to possess potent activity against multiple myeloma. However, the treatment strategy for patients who acquired resistance to these agents has not been established. In addition to switching drug classes, intensified treatment strategy, including increase in the dosage of current agents and addition of other agents, may be considered for these patients. We here describe 2 myeloma patients with acquired resistance to bortezomib or lenalidomide, in whom add-on therapy with low-dose cyclophosphamide was effective and tolerable. These cases suggest that add-on therapy with cyclophosphamide is one of the treatment options to overcome resistance to novel agents in patients with multiple myeloma. A larger prospective study is needed to clarify the efficacy and safety of this strategy for novel agent-resistant multiple myeloma.
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institution Kabale University
issn 2090-6560
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language English
publishDate 2013-01-01
publisher Wiley
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series Case Reports in Hematology
spelling doaj-art-921fc895c81a4baaac3ed13c34c780ad2025-02-03T01:20:39ZengWileyCase Reports in Hematology2090-65602090-65792013-01-01201310.1155/2013/651902651902Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or LenalidomideShigeki Ito0Tatsuo Oyake1Kazunori Murai2Yoji Ishida3Hematology & Oncology, Department of Internal Medicine, Iwate Medical University School of Medicine, Morioka, Iwate 020-8505, JapanHematology & Oncology, Department of Internal Medicine, Iwate Medical University School of Medicine, Morioka, Iwate 020-8505, JapanHematology & Oncology, Department of Internal Medicine, Iwate Medical University School of Medicine, Morioka, Iwate 020-8505, JapanHematology & Oncology, Department of Internal Medicine, Iwate Medical University School of Medicine, Morioka, Iwate 020-8505, JapanNovel agents such as thalidomide, lenalidomide, and bortezomib have been shown to possess potent activity against multiple myeloma. However, the treatment strategy for patients who acquired resistance to these agents has not been established. In addition to switching drug classes, intensified treatment strategy, including increase in the dosage of current agents and addition of other agents, may be considered for these patients. We here describe 2 myeloma patients with acquired resistance to bortezomib or lenalidomide, in whom add-on therapy with low-dose cyclophosphamide was effective and tolerable. These cases suggest that add-on therapy with cyclophosphamide is one of the treatment options to overcome resistance to novel agents in patients with multiple myeloma. A larger prospective study is needed to clarify the efficacy and safety of this strategy for novel agent-resistant multiple myeloma.http://dx.doi.org/10.1155/2013/651902
spellingShingle Shigeki Ito
Tatsuo Oyake
Kazunori Murai
Yoji Ishida
Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide
Case Reports in Hematology
title Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide
title_full Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide
title_fullStr Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide
title_full_unstemmed Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide
title_short Successful Use of Cyclophosphamide as an Add-On Therapy for Multiple Myeloma Patients with Acquired Resistance to Bortezomib or Lenalidomide
title_sort successful use of cyclophosphamide as an add on therapy for multiple myeloma patients with acquired resistance to bortezomib or lenalidomide
url http://dx.doi.org/10.1155/2013/651902
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