Introduction: CNS metastases mean a great challenge. It has been suggested that the brain metastases incidence could be high in metastasic breast cancer patients receiving trastuzumab based-therapies.
Material And Methods: We performed a descriptive analysis of our experience in this setting. 86 patients met the criteria (From Oct/99 to Oct/03).
Results: CNS progression occurred in 17 patients (19.5%). Mean age of CNS progression disease patients was 45.4 years while mean age for all the patients was 50.5 years. Response rate for the entire group of patients was: OR 39.7%; CB (OR + SD) 69%. Response rate to trastuzumab based-therapy was OR 82.4% and CB 88.2 at the time of CNS progression. Median time from the start of trastuzumab therapy up to the CNS progression was 10 months. OS was 23.4 weeks.
Conclusions: The incidence of CNS involvement is high in young metastasic breast cancer women responding to trastuzumab-based therapies. This may lead to prophylactic cranial irradiation strategies or to the early detection in asymptomatic patients to improve surgery or radiosurgery results in these patients.
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