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1.
Cancer Chemother Pharmacol ; 43(6): 471-8, 1999.
Artículo en Inglés | MEDLINE | ID: mdl-10321507

RESUMEN

PURPOSE: Correlation between aging and doxorubicin-induced congestive heart failure in patients with metastatic breast cancer was studied to determine whether doxorubicin-induced congestive heart failure in elderly patients with metastatic breast cancer is a clinically significant issue. METHODS: This was a retrospective study with a median follow-up of 16.8 years. The setting was a comprehensive cancer center in a large city. A group of 682 consecutive patients with metastatic breast cancer presented to The University of Texas M.D. Anderson Cancer Center between 1973 and 1980. All patients received doxorubicin by bolus infusion. Patients in group 1 (n = 538) were aged 50 to 64 years; patients in group 2 (n = 144) were aged 65 years and older. Medical records of all patients were reviewed. Patients who had congestive heart failure were identified and analyzed. The diagnosis of doxorubicin-induced congestive heart failure was made and confirmed by a cardiologist at the time of its development. The main outcome measure was the cumulative probability of developing doxorubicin-induced congestive heart failure in elderly patients with metastatic breast cancer compared to a younger age group. RESULTS: In group 1, 33 patients, and in group 2, 13 patients developed doxorubicin-related congestive heart failure. The cumulative doses of doxorubicin administered to patients with congestive heart failure were 410 mg/m2 (range 150-550 mg/m2) and 400 (range 100-570 mg/m2), respectively. The time interval from the last date of doxorubicin treatment to the development of congestive heart failure was, respectively, 5 months (range < 1-65 months) and 9 months (range < 1-28 months). There was no statistically significant difference between the two congestive heart failure subgroups, nor were we able to identify risk factors that could have increased the risk of congestive heart failure among these patients. CONCLUSION: Older patients with metastatic breast cancer and no significant comorbidity can be treated with doxorubicin-based chemotherapy with no added risk of developing congestive heart failure beyond that in the younger age group.


Asunto(s)
Antibióticos Antineoplásicos/efectos adversos , Neoplasias de la Mama/tratamiento farmacológico , Doxorrubicina/efectos adversos , Insuficiencia Cardíaca/inducido químicamente , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Metástasis de la Neoplasia , Estudios Retrospectivos
2.
Cancer ; 80(12): 2240-9, 1997 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-9404700

RESUMEN

BACKGROUND: Sialyl-Tn (STn) represents an aberrantly glycosylated mucin epitope that is expressed in breast carcinoma and other adenocarcinomas and is an important factor in the development of novel immunotherapeutic approaches. The primary aim of the current study was to investigate the influence of STn expression on the prognoses of patients with breast carcinoma. METHODS: A cohort of 207 women diagnosed with invasive breast carcinoma who were treated with anthracycline-containing adjuvant chemotherapy and were enrolled in a randomized clinical trial were studied. Expression of STn was determined by an immunohistochemical procedure in which the B72.3 monoclonal antibody was used. Kaplan-Meier and Cox proportional regression survival analyses were used to compare low STn and high STn patients. RESULTS: Forty-eight (23%) of the 207 specimens demonstrated high STn staining (>25% cells were immunoreactive). During a median follow-up of 5 years, high STn patients had worse disease free survival than low STn patients (55% vs. 74%, respectively; P = 0.03). High STn expression was significantly associated with age (P = 0.04) but not with other conventional prognostic markers. In multivariate analysis using the Cox regression model, high STn emerged as an independent prognostic indicator for disease free survival (hazard ratio [HR], 2.02; 95% confidence interval [CI], 1.09-3.73) and for overall survival (HR, 2.16; 95% CI, 0.95-4.92). CONCLUSIONS: The results of this study suggest that STn may be a valuable marker for identifying women at high risk of developing recurrent breast carcinoma who may be candidates for trials investigating new therapies in combination with standard adjuvant therapy.


Asunto(s)
Antígenos de Carbohidratos Asociados a Tumores/biosíntesis , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias de la Mama/patología , Carcinoma Ductal de Mama/patología , Carcinoma Lobular/patología , Adulto , Anciano , Anticuerpos Monoclonales/análisis , Anticuerpos Antineoplásicos/análisis , Biomarcadores de Tumor , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/metabolismo , Carcinoma Ductal de Mama/tratamiento farmacológico , Carcinoma Ductal de Mama/metabolismo , Carcinoma Lobular/tratamiento farmacológico , Carcinoma Lobular/metabolismo , Quimioterapia Adyuvante , Estudios de Cohortes , Ciclofosfamida/administración & dosificación , Supervivencia sin Enfermedad , Doxorrubicina/administración & dosificación , Femenino , Fluorouracilo/administración & dosificación , Humanos , Técnicas para Inmunoenzimas , Leucovorina/administración & dosificación , Metotrexato/administración & dosificación , Persona de Mediana Edad , Pronóstico , Vinblastina/administración & dosificación
3.
J Clin Oncol ; 15(10): 3171-7, 1997 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-9336352

RESUMEN

PURPOSE: Most of the data about high-dose chemotherapy (HDCT) for metastatic breast cancer are derived from phase II studies. The interpretation of these data depends on comparisons with data from properly selected historical control patients treated with standard therapy under similar circumstances. We report the long-term results of patients with metastatic breast cancer who were eligible for HDCT but were treated with doxorubicin-containing standard-dose chemotherapy. PATIENTS AND METHODS: Prospectively collected data from 18 successive doxorubicin-containing protocols for the treatment of metastatic breast cancer were evaluated. Using common eligibility criteria for HDCT, we identified patients who would have been candidates for HDCT. We analyzed response rates, progression-free survival (PFS), and overall survival (OS) for all patients, potential HDCT candidates, and noncandidates. RESULTS: A total of 1,581 patients was enrolled onto the 18 studies. Six hundred forty-five were HDCT candidates, and 936 were noncandidates. The complete response rate was 27% for HDCT candidates and 7% for noncandidates; median PFS was 16 and 8 months and median OS was 30 and 17 months, respectively. Survival rates for HDCT candidates and noncandidates, respectively, were 21% and 6% at 5 years and 7% and 2% at 10 years. CONCLUSION: This study suggests that encouraging results of single-arm trials of HDCT could partially be due to selection of patients with better prognoses and further stresses the importance of completing ongoing randomized trials of HDCT to assess the relative efficacy of HDCT in patients with metastatic breast cancer.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/patología , Selección de Paciente , Neoplasias de la Mama/mortalidad , Ciclofosfamida/administración & dosificación , Progresión de la Enfermedad , Doxorrubicina/administración & dosificación , Femenino , Fluorouracilo/administración & dosificación , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Pronóstico , Sesgo de Selección , Tasa de Supervivencia
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