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12th Congress of the European Hematology ... - Haematologica

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ash, muscolar cramps, diarrhoea, hepatotoxicity), was not different<br />

from that reported in literature. Only 5 <strong>of</strong> 37 patients with severe comorbidities<br />

discontinued imatinib <strong>the</strong>rapy for toxicity. Response rate (87%<br />

complete hematological and 56% complete cytogenetical remission in<br />

chronic phase patients) was just a little lower than reported for younger<br />

patients. All patients treated in 1st chronic phase are alive after a median<br />

4 year follow up. Five <strong>of</strong> <strong>the</strong> 6 patients treated in advanced phase died<br />

(4 <strong>of</strong> CML progression, 1 <strong>of</strong> second neoplasm) at 3-25 months from diagnosis.<br />

In conclusion, this study shows that Imatinib <strong>the</strong>rapy can be fairly<br />

tolerated and provide cytogenetic complete responses and long-term<br />

survival also in advanced age patients in chronic phase CML. It can be<br />

regarded as <strong>the</strong> treatment <strong>of</strong> choice for very old patients too, unless<br />

affected by severe comorbidities with short life expectancy.<br />

0660<br />

HYPOPHOSPHATAEMIA IN PATIENTS RECEIVING IMATINIB THERAPY<br />

A.-M. Watson, L. Dunlop, J. Gallo, M. Harvey, D. Heaton, P. Motum,<br />

D. Rosenfeld<br />

Liverpool Hospital, LIVERPOOL BC, Australia<br />

Background. A recent report found a high incidence <strong>of</strong> hypophosphataemia<br />

and changes in bone metabolism in patients receiving imatinib<br />

<strong>the</strong>rapy. 1 Aims. To determine whe<strong>the</strong>r <strong>the</strong>re is a similar significant<br />

incidence <strong>of</strong> hypophosphataemia in patients receiving long-term imatinib<br />

<strong>the</strong>rapy for haematological disorders within our institution and<br />

identify any factors that may be linked to development <strong>of</strong> hypophosphataemia.<br />

Methods. The records and biochemistry results <strong>of</strong> patients<br />

receiving imatinib <strong>the</strong>rapy for haematological disorders for >1 month<br />

duration were reviewed to identify development <strong>of</strong> hypophosphataemia<br />

(phosphate

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