Volume 76, Issue 5 pp. 399-404

First-line therapy with thalidomide, dexamethasone and zoledronic acid decreases bone resorption markers in patients with multiple myeloma

Patrizia Tosi

Patrizia Tosi

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Elena Zamagni

Elena Zamagni

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Claudia Cellini

Claudia Cellini

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Raffaele Parente

Raffaele Parente

Central Laboratory, Policlinico S. Orsola, Bologna, Italy

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Delia Cangini

Delia Cangini

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Paola Tacchetti

Paola Tacchetti

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Giulia Perrone

Giulia Perrone

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Michela Ceccolini

Michela Ceccolini

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Paola Boni

Paola Boni

Central Laboratory, Policlinico S. Orsola, Bologna, Italy

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Sante Tura

Sante Tura

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Michele Baccarani

Michele Baccarani

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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Michele Cavo

Michele Cavo

Institute of Hematology and Medical Oncology ‘L. e A. Seràgnoli’ Bologna University, Bologna, Italy

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First published: 15 February 2006
Citations: 47
Patrizia Tosi, MD, Istituto di Ematologia e Oncologia Medica ‘Seràgnoli’, Policlinico S. Orsola, Via Massarenti, 9, 40138 – Bologna, Italy
Tel: +390516363700
Fax: +390516364037
e-mail [email protected]

Abstract

Abstract: Background: Bone involvement is frequently observed in multiple myeloma (MM) patients both at diagnosis and during the course of the disease. The evaluation of biochemical markers of bone turnover could allow a dynamic evaluation of the effects of a given therapy on bone metabolism. Methods: In the present study, markers of bone resorption [urinary free pyridinoline (PYD), deoxypyridinoline (DPYD), N-terminal telopeptide of collagen I (NTX) and C-terminal telopeptide (serum crosslaps)] and of bone formation [bone alkaline phosphatase (BAP) and osteocalcin] were evaluated at diagnosis and after induction therapy in 40 patients (23M, 17F, median age = 53.5 yr) enrolled in the ‘Bologna 2002’ clinical trial. By study design, all patients received 4 months of combined thalidomide (100 mg/d for 2 wk then 200 mg/d), dexamethasone (40 mg/d on days 1–4, 9–12, 17–20/28 on odd cycles and on days 1–4 on even cycles) and zoledronic acid (4 mg/28 d). Results: At diagnosis, although bone resorption markers were increased in more than 40% of the patients, only NTX (P = 0.029) and crosslaps (P = 0.000) were significantly related to the extent of skeletal lesions, as assessed by X-ray. After 4 months of therapy, a significant decrease in mean (±SE) urinary NTX (52.7 ±6.9 nmol/mmol creatinine ±6.9 vs. 14 ± 1.42 nmol/mmol creatinine, P = 0.000) and serum crosslaps (6242.4 ±945 pmol/L vs. 1414.9 ± 173.8 pmol/L, P = 0.000) was observed in patients obtaining ≥partial response, at variance to what has been detected in patients showing <partial response. Conclusions: Among all bone resorption markers, urinary NTX and serum crosslaps seem to be strictly related to the extent of bone involvement in MM. Combined thalidomide + dexamethasone and zoledronic acid seem to be highly effective in reducing bone resorption in sensitive patients, although the relative contribution of each drug cannot yet be determined.

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