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1.
Breast Cancer Res Treat ; 151(3): 597-606, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25981896

RESUMEN

Anthracycline and taxane-based primary chemotherapy (PCT) is the standard treatment for high-risk breast cancer (HRBC). However, conventional anthracyclines are not commonly used in elderly patients or those prone to cardiotoxicity. Pegylated liposomal doxorubicin, (PLD) has comparable efficacy, but less cardiotoxicity than conventional anthracyclines. We conducted a phase II single-arm trial to assess the efficacy and safety of PCT based on PLD followed by paclitaxel (PTX) in a HRBC population usually undertreated. Fifty patients with stage II-IIIB breast cancer and at least one risk factor for developing cardiotoxicity initiated PLD 35 mg/m(2) plus cyclophosphamide 600 mg/m(2) every 4 weeks for four cycles, followed by 80 mg/m(2) weekly PTX for 12. Close cardiac monitoring was performed. Primary endpoint was the pathological complete response rate (pCR) in the breast. Treatment delivery and toxicities were assessed. Eighty-four per cent of patients were older than 65 years, 64 % suffered from hypertension, and 10 % had prior cardiac disease. In an intention-to-treat analysis, breast pCR was 32 % (95 % CI 19.5-46.7 %) and pCR in breast and axilla was 24 % (95 % CI 12.1-35.8 %). At diagnosis only, 26 % of patients were candidates for breast conservative surgery, which increased to 58.7 % after PCT. No significant decrease in left ventricular ejection fraction was seen. PLD followed by PTX was feasible in a fragile population of patients who were not candidates for conventional doxorubicin. Moreover, it achieved a pCR similar to standard therapy and could therefore be an option for elderly patients or cardiotoxicity-prone who present HRBC.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Biomarcadores de Tumor , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Cardiotoxicidad , Comorbilidad , Ciclofosfamida/administración & dosificación , Doxorrubicina/administración & dosificación , Doxorrubicina/análogos & derivados , Femenino , Cardiopatías/diagnóstico , Cardiopatías/etiología , Cardiopatías/fisiopatología , Humanos , Persona de Mediana Edad , Estadificación de Neoplasias , Paclitaxel/administración & dosificación , Polietilenglicoles/administración & dosificación , Factores de Riesgo , Resultado del Tratamiento
2.
Br J Cancer ; 89(6): 1002-7, 2003 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-12966416

RESUMEN

The study consisted of a cost-minimisation analysis since the findings from a multicentre randomised phase III trial showed that pegylated liposomal doxorubicin hydrochloride was at least as efficacious as topotecan. An economic model from the Spanish hospitals perspective was constructed to compare the costs derived from the treatment using both drugs in patients with recurrent epithelial ovarian cancer who failed a first-line platinum-containing regimen. The cost evaluation included direct medical costs: drug, drug administration and costs of managing adverse events. Estimation of resources used in managing adverse events was made retrospectively through an expert panel. Results obtained per patient were: cost of drug and administration, 8647.70 euros for pegylated liposomal doxorubicin hydrochloride and 8519.94 euros for topotecan, while cost of managing adverse events was 967.02 euros in the pegylated liposomal doxorubicin hydrochloride arm and 3304.75 euros for topotecan. The total cost per patient was therefore estimated to be 9614.72 euros for pegylated liposomal doxorubicin hydrochloride and 11 824.69 euros for topotecan, showing that pegylated liposomal doxorubicin hydrochloride produces a cost saving of 2209.97 euros per patient in comparison to topotecan. Sensitivity analyses verified the robustness of the results. These findings suggest that pegylated liposomal doxorubicin hydrochloride is an efficient therapy and can be used as a cost-saving option for treatment of patients with recurrent epithelial ovarian cancer who have failed a first-line platinum-containing regimen.


Asunto(s)
Antineoplásicos/economía , Doxorrubicina/economía , Costos de los Medicamentos , Recurrencia Local de Neoplasia/economía , Neoplasias Glandulares y Epiteliales/economía , Neoplasias Ováricas/economía , Topotecan/economía , Antineoplásicos/uso terapéutico , Análisis Costo-Beneficio , Doxorrubicina/uso terapéutico , Economía Farmacéutica , Femenino , Costos de la Atención en Salud/estadística & datos numéricos , Humanos , Infusiones Intravenosas , Liposomas , Recurrencia Local de Neoplasia/tratamiento farmacológico , Neoplasias Glandulares y Epiteliales/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Polietilenglicoles , Terapia Recuperativa , España , Topotecan/uso terapéutico
3.
Breast Cancer Res Treat ; 42(1): 83-6, 1997 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-9116322

RESUMEN

We measure EGF in saliva and plasma from 52 patients with active breast cancer, 22 breast cancer patients in follow-up (non-active) and 33 healthy women. EGF concentrations in saliva were significantly higher in patients with active and non-active breast cancer than healthy women, whereas the opposite results were found in plasma. The highest values of EGF in saliva were found in the local recurrence subgroup.


Asunto(s)
Neoplasias de la Mama/sangre , Factor de Crecimiento Epidérmico/análisis , Saliva/química , Adulto , Anciano , Neoplasias de la Mama/patología , Factor de Crecimiento Epidérmico/sangre , Femenino , Humanos , Persona de Mediana Edad , Metástasis de la Neoplasia , Recurrencia Local de Neoplasia
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