Bortezomib-dexamethasone combination in a patient with refractory multiple myeloma and impaired renal function

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Background: Multiple myeloma (MM) is a hematologic neoplasia characterized by the monoclonal proliferation of bone marrow plasma cells. Renal failure occurs in 20% to 30% of MM patients at diagnosis and in >50% with an advanced form of the disease. For those with advanced MM, often a high-risk group of patients with poor prognosis, salvage treatment for renal failure needs to avoid nephrotoxic drugs. Case Summary: We report a case of a 78-year-old white male (weight, 90 kg) presented to the Department of Medical Oncology and Hematology, Istituto Clinico Humanitas, Rozzano, Milan, Italy, with refractory MM immunoglobulin G kappa (IgGκ), Durie-Salmon Stage IIA, with progressive renal failure after an oral melphalan, prednisone, and thalidomide regimen (4 mg/m 2 · d, 40 mg/m 2 · d for 7 days every 6 weeks, and 100 mg/d, respectively). The patient had documented increments of serum monoclonal component (M-protein), anemia, and renal failure with Bence Jones proteinuria (serum creatinine, 2.9 mg/dL; creatinine clearance, 30 mL/min; hemoglobin, 10.9 g/dL; serum IgGκ M-protein, 3.9 g/dL; proteinuria 3.5 g/d;light-chain level in urine, 1.2 g/L). After 2 cycles with bortezomib at a reduced dose (1.0 mg/m 2 twice weekly for 2 weeks followed by a 10-day rest period) to evaluate tolerability and renal toxicity, the patient completed another 3 cycles at the standard dose (1.3 mg/m 2) in combination with dexamethasone (20 mg on the day of bortezomib administration and the day after). This led to an improvement of the renal function with a reduction of serum and urinary M-protein (serum creatinine 1.4 mg/dL; serum IgGκ M-protein, 2.9 g/dL; proteinuria, 2 g/d; κ light-chain level in urine, 0.7 g/L). The patient developed thrombocytopenia but did not suffer from some of the more severe adverse events associated with bortezomib, such as infection or peripheral neuropathy, even at full dose. Conclusion: We report an elderly patient with refractory MM and progression with renal failure who responded to bortezomib treatment. Bortezomib was well tolerated in this patient.

Original languageEnglish
Pages (from-to)953-959
Number of pages7
JournalClinical Therapeutics
Issue number6
Publication statusPublished - Jun 2006


  • bortezomib
  • multiple myeloma
  • renal failure

ASJC Scopus subject areas

  • Pharmacology


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