Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 7 de 7
Filtrar
1.
J Clin Oncol ; 18(4): 734-42, 2000 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-10673514

RESUMEN

PURPOSE: Several preclinical studies showed that short-term pretreatment of breast cancer cells with estrogens can increase the antitumor efficacy of different cytotoxic drugs. Some early clinical studies in patients with advanced breast cancer did seem to support these findings. Therefore, the efficacy of estrogenic recruitment followed by chemotherapy was compared with that of chemotherapy alone in a randomized phase III study in women with lymph node-positive primary breast cancer. PATIENTS AND METHODS: Three hundred twenty-eight patients with stage II/IIIA breast cancer who were younger than 66 years of age were randomly allocated to chemotherapy with fluorouracil, doxorubicin, and cyclophosphamide (FAC) or FAC plus pretreatment with ethinyl estradiol (EE(2)). FAC (500, 50, and 500 mg/m(2), respectively) was administered intravenously once every 4 weeks for four cycles. EE(2) (0.5 mg) was administered orally, both 24 hours and immediately preceding FAC chemotherapy. RESULTS: Patient and tumor characteristics and chemotherapy dosages were comparable in both treatment groups. Of 318 assessable patients, with a median follow-up of 6.8 years, 177 patients had a relapse and 127 died. No significant differences were observed between the two treatment groups with respect to relapse-free, local recurrence-free, and overall survival according to univariate and multivariate analyses adjusted for age, menopausal status, tumor size, grade, number of positive nodes, and steroid-receptor status. The power for the detection of an increase of 50% in the median relapse-free survival was 80%. CONCLUSION: Estrogenic recruitment of breast cancer cells before FAC chemotherapy did not influence the efficacy of adjuvant chemotherapy in stage II/IIIA breast cancer patients after a follow-up of 6.8 years.


Asunto(s)
Antineoplásicos Hormonales/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Etinilestradiol/administración & dosificación , Adulto , Anciano , Análisis de Varianza , Antibióticos Antineoplásicos/administración & dosificación , Antimetabolitos Antineoplásicos/administración & dosificación , Antineoplásicos Alquilantes/administración & dosificación , Neoplasias de la Mama/cirugía , Quimioterapia Adyuvante , Ciclofosfamida/administración & dosificación , Supervivencia sin Enfermedad , Doxorrubicina/administración & dosificación , Femenino , Fluorouracilo/administración & dosificación , Estudios de Seguimiento , Humanos , Metástasis Linfática/patología , Persona de Mediana Edad , Análisis Multivariante , Recurrencia Local de Neoplasia/patología , Inducción de Remisión , Tasa de Supervivencia
2.
Cancer Chemother Pharmacol ; 37(1-2): 190-2, 1995.
Artículo en Inglés | MEDLINE | ID: mdl-7497592

RESUMEN

A total of 14 patients with platinum-resistant advanced epithelial ovarian cancer were treated with a continuous infusion of high-dose 5-fluorouracil (5-FU, 1200 mg/m2 per day) for 2 consecutive days weekly for 4 weeks and, thereafter, every 2 weeks in combination with a push injection of folinic acid (20 mg/m2) given just before 5-FU and after 24 h. No objective response was documented, and only five patients showed stable disease. The median survival was 6.5 months. There was minimal toxicity. This schedule of 5-FU in combination with folinic acid is not effective as second-line chemotherapy in advanced ovarian cancer.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Anciano , Carboplatino/administración & dosificación , Cisplatino/administración & dosificación , Resistencia a Medicamentos , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Humanos , Leucovorina/administración & dosificación , Leucovorina/efectos adversos , Persona de Mediana Edad , Neoplasias Ováricas/mortalidad , Tasa de Supervivencia
3.
Cancer ; 72(7): 2107-11, 1993 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-8374869

RESUMEN

BACKGROUND: 5-Fluorouracil (5-FU), when combined with leucovorin (LV) or interferon-alpha (IFN-alpha), may result in improved response rates compared with 5-FU alone in patients with advanced colorectal cancer. The authors investigated the clinical efficacy of combining these three agents for patients in this group. METHODS: Forty-five patients were administered outpatient high-dose 5-FU, 60 mg/kg/48 hours (2400 mg/m2/48 hours) continuous intravenous infusion on days 1 and 2; LV, 90 mg orally every 6 hour, 8 times during 5FU infusion; and recombinant IFN-alpha-2b, 10 x 10(6) IU/dose subcutaneously on days 1, 3, and 5. Cycles were repeated weekly for 4 weeks and every 2 weeks thereafter. RESULTS: Forty-four patients were evaluable for response, and 11 patients (25%; 95% confidence interval, 12-38%) achieved a partial response with a median duration of 11 months. Median survival time for all patients was 11 months. Grade 3 and Grade 4 toxicities occurred in 21 patients (47%), which necessitated discontinuation of treatment in 2 patients (4%); permanent dose reductions were necessary in 11 patients (24%). The addition of IFN-alpha produced more 5-FU-related toxicity compared with a previous study in which the same dosage and schedule of 5-FU plus LV was used. CONCLUSIONS: The efficacy of 5-FU continuous infusion combined with LV and IFN-alpha does not appear to differ significantly from earlier reports on treatment using 5-FU plus LV or 5-FU plus IFN-alpha for patients with colorectal cancer. However, this schedule of 5-FU combined with LV and IFN-alpha produces less toxicity compared with previous trials using bolus 5-FU plus IFN-alpha.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias Colorrectales/terapia , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Esquema de Medicación , Femenino , Fluorouracilo/administración & dosificación , Humanos , Infusiones Intravenosas , Interferón-alfa/administración & dosificación , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Proteínas Recombinantes/administración & dosificación , Resultado del Tratamiento
4.
Ann Oncol ; 4(5): 426-8, 1993 May.
Artículo en Inglés | MEDLINE | ID: mdl-8353077

RESUMEN

BACKGROUND: FAMTX (5-fluorouracil, adriamycin, methotrexate) is one of the most effective drug combinations in gastric cancer. Therefore, modifications of FAMTX appear of interest and the FEMTX-P regiment was conceived. PATIENTS AND METHODS: Fifty patients with unresectable locally advanced and/or metastatic gastric carcinoma were treated with methotrexate 1500 mg/m2 i.v. and 5-fluorouracil 1500 mg/m2 i.v. on day 1; leucovorin rescue 15 mg/m2 orally every 6 hours for 8 doses on days 2 and 3; epirubicin 60 mg/m2 i.v. and cisplatin 50 mg/m2 i.v. on day 15, q 4 weeks. RESULTS: Of forty-seven patients evaluable for response, five (11%) achieved complete responses and seventeen (36%) partial responses (total response rate 47%). The median duration of response was 8+ months (range: 5-25+ months). Four of 14 patients with locally advanced disease were successfully downstaged and subsequently resected. The median duration of survival of all patients was 10 months (range: 1-25+ months). Leukopenia grade 4 occurred in 18% of patients and thrombocytopenia grade 4 and mucositis grade 4 in 4% and 2%, respectively. Treatment postponement for hematologic toxicity was necessary in 54% of patients. CONCLUSIONS: The FEMTX-P regimen is an active regimen in advanced gastric carcinoma, with acceptable toxicity.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Gástricas/tratamiento farmacológico , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Cisplatino/administración & dosificación , Epirrubicina/administración & dosificación , Femenino , Fluorouracilo/administración & dosificación , Humanos , Leucopenia/inducido químicamente , Masculino , Metotrexato/administración & dosificación , Persona de Mediana Edad , Trombocitopenia/inducido químicamente
5.
Bull Cancer ; 80(3): 255-60, 1993 Mar.
Artículo en Francés | MEDLINE | ID: mdl-8173178

RESUMEN

In this phase II study, fifty patients with unresectable locally advanced and/or metastatic gastric carcinoma were treated with methotrexate 1.5 g/m2 iv and 5-fluorouracil 1.5 g/m2 iv on day 1; leucovorin rescue 15 mg/m2 orally every 6 h for 8 doses on day 2 and 3; epirubicin 60 mg/m2 iv and cisplatin 50 mg/m2 iv on day 15, q 4 weeks. The median age of the patients was 59 years and their median performance status 1. In forty-eight patients evaluable for response, five (10.4%) of the patients achieved a complete response and seventeen (35.6%) obtained a partial response (total response rate 46%; 95% confidence interval: 32%-60%). The median duration of response was 8+ months (range: 5-25 months). The median duration of survival of all patients was 10 months (range: 1-25+ months). Toxicities > grade 2 included vomiting grade 3 (31%), leucopenia grade 4 (18%) and thrombocytopenia grade 4 (4%). Treatment postponement or dose reduction for hematologic toxicity was necessary in 54% of patients. Median survival was 10 months. In conclusion, the FEMTX-P regimen is an active treatment in advanced gastric carcinoma with acceptable toxicity.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Gástricas/tratamiento farmacológico , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Cisplatino/administración & dosificación , Cisplatino/efectos adversos , Epirrubicina/administración & dosificación , Epirrubicina/efectos adversos , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Humanos , Masculino , Metotrexato/administración & dosificación , Metotrexato/efectos adversos , Persona de Mediana Edad , Metástasis de la Neoplasia , Recurrencia Local de Neoplasia , Resultado del Tratamiento
6.
Semin Oncol ; 19(2 Suppl 3): 208-10, 1992 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-1557649

RESUMEN

Several reports on fluorouracil (5-FU) and alfa interferon (IFN-alpha) combination therapy in patients with advanced colorectal cancer have been published. In our study high-dose continuous infusion 5-FU (60 mg/kg per 48 hours), oral folinic acid (FA) (8 x 90 mg during 5-FU), and IFN-alpha three times weekly were combined. Because the addition of IFN-alpha has not been tested before, and serious toxicity of 5-FU plus IFN-alpha therapy has been reported, the IFN-alpha dose was escalated from 3 to 10 million units (MU)/dose in the first 11 patients. Grade 3 toxicity was noted in four patients, and consisted mainly of oral mucositis. No grade 4 toxicity occurred. Three partial responses were noted. Preliminary results of a phase II study, in which all patients received IFN-alpha at 10 MU/dose, show grade 3 and 4 toxicities in 24% and 4% of patients, respectively. This compares favorably with other trials in which 5-FU and IFN-alpha was used without FA.


Asunto(s)
Neoplasias Colorrectales/terapia , Administración Oral , Adulto , Anciano , Neoplasias Colorrectales/patología , Esquema de Medicación , Evaluación de Medicamentos , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Humanos , Infusiones Intravenosas , Interferón-alfa/administración & dosificación , Interferón-alfa/efectos adversos , Leucovorina/administración & dosificación , Leucovorina/efectos adversos , Persona de Mediana Edad , Metástasis de la Neoplasia
7.
Cancer Chemother Pharmacol ; 29(4): 326-8, 1992.
Artículo en Inglés | MEDLINE | ID: mdl-1537082

RESUMEN

A high rate of response to 5-fluorouracil (5FU) and alpha-interferon (alpha IFN) combination therapy has been reported in metastatic colorectal cancer patients. Therefore, designed a trial of high-dose continuous-infusion 5FU, oral leucovorin (LV), and alpha IFN in this group of patients. Because this combination has not previously been tested and severe toxicity has been reported for 5FU and alpha IFN combination therapy, we conducted a phase I trial in which 11 patients presenting with previously untreated metastatic colorectal cancer were treated with escalating doses of alpha IFN together with fixed doses of 5FU and LV. WHO grade III toxicity consisting mainly of oral mucositis was noted in four patients. No grade IV toxicity occurred. Although alpha IFN may enhance the toxicity of 5FU, the toxicity of this regimen remained manageable. Three partial responses were noted.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Neoplasias Colorrectales/tratamiento farmacológico , Fluorouracilo/administración & dosificación , Interferón-alfa/administración & dosificación , Leucovorina/administración & dosificación , Adulto , Anciano , Evaluación de Medicamentos , Quimioterapia Combinada , Fluorouracilo/efectos adversos , Humanos , Infusiones Intravenosas , Interferón-alfa/efectos adversos , Leucovorina/efectos adversos , Persona de Mediana Edad , Metástasis de la Neoplasia , Inducción de Remisión , Factores de Tiempo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA