Breast cancer is the most common malignancy among women in Poland and all over the world. Despite the development of modern therapies, cytostatics still play one of the main roles in treatment of this disease. Classic anthracyclines, besides unquestionable efficacy in this disease, have a disadvantageous toxicity profile. Therefore, until now, there has been a limitation in using these drugs in patients with cardiological conditions and in patients who had previously taken anthracyclines. That was the cause for the development of a less toxic form of drug, which is liposomal doxorubicin – being as effective as classic anthracycline it has reduced cardiotoxicity. This article presents the case of a patient with metastatic breast cancer, in whom, after treatment with classic doxorubicin, liposomal form was administered which caused regression of liver metastases. Moreover, during treatment with liposomal doxorubicin, there has been no evidence of heart impairment.
A frequent dilemma faced by an oncologist about to take decision on a chemotherapeutic regime for patients with metastatic breast cancer is how to maintain balance between the expected treatment efficacy and predictable adverse events. In the case of anthracyclines what is problematic is their significant cardiotoxicity, in particular with reference to patients previously treated with them as part of adjuvant therapy. A relatively new method is replacement of conventional doxorubicin with its non-pegylated form, encapsulated in liposomes, which is capable of minimizing the side effects without compromising its therapeutic index. The present article discusses three cases of patients treated with non-pegylated liposomal doxorubicin (NPLD) as first-line chemotherapy administered for metastatic breast cancer. In all three cases considerable clinical improvement was observed, involving remission of pathological lesions and good quality of life.
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