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Plasma Thrombopoietin Levels are Unlikely to Account for the Platelet-sparing Effect of Paclitaxel in Lung Cancer Patients


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Title: Plasma Thrombopoietin Levels are Unlikely to Account for the Platelet-sparing Effect of Paclitaxel in Lung Cancer Patients
Authors: Kasai, Takashi / Soda, Hiroshi / Oka, Mikio / Nakamura, Yoichi / Tsurutani, Junji / Nagashima, Seiji / Fukuda, Minoru / Takatani, Hiroshi / Fukuda, Masaaki / Kinoshita, Akitoshi / Kanda, Tetsuro / Kohno, Shigeru
Issue Date: 24-Dec-2003
Citation: Acta medica Nagasakiensia. 2003, 48(3-4), p.101-105
Abstract: Purpose: The present study was designed to determine whether the combination of carboplatin (CBDCA) with paclitaxel (PTX) spared CBDCA-induced thrombocytopenia by increased plasma thrombopoietin (TPO) levels. Methods: Patients with non-small-cell and small-cell lung cancer were consecutively assigned to CBDCA with PTX regimen (CBDCA/PTX) and CBDCA with irinotecan (CPT-11) regimen (CBDCA/CPT-11), respectively. Results: Ten patients were entered into either CBDCA/PTX (n=5) or CBDCA/CPT-11 (n=5). CBDCA/PTX showed a lesser reduction of platelet counts than CBDCA/CPT-11 (p<0.05), although more severe neutropenia was observed in CBDCA/PTX (p<0.01). The plasma TPO levels were inversely correlated with circulating platelet counts in CBDCA/PTX and CBDCA/CPT-11. However, the increased rate of plasma TPO levels in CBDCA/PTX was not significantly different from that in CBDCA/CPT-11. Conclusions: These findings suggest that the increased plasma TPO levels in CBDCA/PTX result secondarily from thrombocytopenia, and that circulating TPO is probably not involved in the platelet-sparing effect of PTX.
Keywords: thrombopoietin / carboplatin / paclitaxel / thrombocytopenia
URI: http://hdl.handle.net/10069/16252
ISSN: 00016055
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 48, No. 3-4

Citable URI : http://hdl.handle.net/10069/16252

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