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1.
J Clin Oncol ; 18(5): 1058-61, 2000 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-10694557

RESUMEN

PURPOSE: Cisplatin and paclitaxel are active agents in advanced urothelial cancer. A phase II trial of this combination was performed to determine the activity and toxicity of these agents in a multi-institutional setting. PATIENTS AND METHODS: Fifty-two patients with advanced urothelial carcinoma were treated on one day with paclitaxel 175 mg/m(2) over 3 hours followed by cisplatin 75 mg/m(2), both intravenously, every 21 days. Cycles were repeated every 21 days until progression or a maximum of six cycles. RESULTS: Twenty-six patients obtained an objective response, for an overall response rate of 50% (95% confidence interval, 36% to 64%). Four patients achieved complete clinical responses. The median overall survival time for the group was 10.6 months. Toxicity was moderate, with granulocytopenia and neurotoxicity being the most common side effects noted. CONCLUSION: The combination of cisplatin and paclitaxel is active in advanced urothelial cancer. Responses in visceral, nodal, and soft tissues sites were observed. Granulocytopenia without fever and grade 2/3 neurotoxicity were common. The confidence interval of the overall response rate in this study overlaps most of the other reported regimens. The optimal therapy for advanced urothelial cancer remains undefined.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Transicionales/tratamiento farmacológico , Cisplatino/uso terapéutico , Paclitaxel/uso terapéutico , Neoplasias Urológicas/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Cisplatino/administración & dosificación , Cisplatino/efectos adversos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Paclitaxel/administración & dosificación , Paclitaxel/efectos adversos , Resultado del Tratamiento , Urotelio
2.
J Clin Oncol ; 11(4): 762-7, 1993 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-8478668

RESUMEN

PURPOSE: Several placebo-controlled randomized clinical trials have demonstrated that megestrol acetate can result in appetite stimulation and nonfluid weight gain in patients with cancer anorexia/cachexia. The present trial was designed to compare megestrol acetate doses ranging from 160 to 1,280 mg/d. METHODS: This trial randomized 342 assessable patients with cancer anorexia/cachexia to receive oral megestrol acetate at doses of 160, 480, 800, or 1,280 mg/d. Patients were evaluated monthly by history, examination, patient-completed questionnaires, and serum albumin levels. RESULTS: The data demonstrate that there is a positive dose-response effect for megestrol acetate on appetite stimulation (P < or = .02). In concert, there was a trend for more nonfluid weight gain with higher drug doses. Megestrol acetate was well tolerated in this group of patients with advanced malignant disease. CONCLUSION: The positive dose-response effect that we observed for megestrol acetate on appetite stimulation supports both our prestudy hypothesis and other available literature. Nonetheless, based primarily on the cost and inconvenience associated with the use of higher doses of this drug, it is reasonable to use 160 mg/d for the initial treatment of cancer anorexia/cachexia in routine clinical practice.


Asunto(s)
Anorexia/tratamiento farmacológico , Caquexia/tratamiento farmacológico , Megestrol/análogos & derivados , Neoplasias/complicaciones , Adulto , Anciano , Anciano de 80 o más Años , Anorexia/etiología , Apetito/efectos de los fármacos , Caquexia/etiología , Relación Dosis-Respuesta a Droga , Ingestión de Alimentos/efectos de los fármacos , Femenino , Humanos , Masculino , Megestrol/administración & dosificación , Megestrol/efectos adversos , Acetato de Megestrol , Persona de Mediana Edad , Estudios Prospectivos , Aumento de Peso/efectos de los fármacos
3.
J Clin Oncol ; 15(8): 2974-80, 1997 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-9256142

RESUMEN

PURPOSE: A minority of cancer survivors develops long-term postsurgical neuropathic pain. Based on evidence that capsaicin, the pungent ingredient in hot chili peppers, might be useful for treating neuropathic pain, we developed the present clinical trial. PATIENTS AND METHODS: Ninety-nine assessable patients with postsurgical neuropathic pain were entered onto this study. After stratification, patients were to receive 8 weeks of a 0.075% capsaicin cream followed by 8 weeks of an identical-appearing placebo cream, or vice versa. A capsaicin/placebo cream was to be applied to the painful site four times daily. Treatment evaluation was performed by patient-completed weekly questionnaires. RESULTS: During the first 8-week study period, the capsaicin-cream arm was associated with substantially more skin burning, skin redness, and coughing (P < .0001 for each). Nonetheless, treatment was stopped for patient refusal or toxicity just as often while patients were receiving the placebo as compared with the capsaicin. The capsaicin cream arm had substantially more pain relief (P = .01) after the first 8 weeks, with an average pain reduction of 53% versus 17%. On completion of the 16-week study period, patients were asked which treatment period was most beneficial. Of the responding patients, 60% chose the capsaicin arm, 18% chose the placebo arm, and 22% chose neither (P = .001). CONCLUSION: A topical capsaicin cream decreases postsurgical neuropathic pain and, despite some toxicities, is preferred by patients over a placebo by a three-to-one margin among those expressing a preference.


Asunto(s)
Capsaicina/administración & dosificación , Neoplasias/cirugía , Neuralgia/tratamiento farmacológico , Dolor Postoperatorio/tratamiento farmacológico , Administración Tópica , Anciano , Capsaicina/efectos adversos , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neuralgia/etiología , Pomadas , Dimensión del Dolor
4.
J Clin Oncol ; 15(3): 1235-8, 1997 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-9060567

RESUMEN

PURPOSE: Stomatitis is a major dose-limiting toxicity of bolus fluorouracil (5FU)-based chemotherapy regimens, despite the use of oral cryotherapy. Pursuant to preliminary data that suggested a sucralfate oral solution could alleviate chemotherapy-induced oral mucositis, we developed a prospective trial to test this contention. PATIENTS AND METHODS: A phase III, double-blind, placebo-controlled clinical trial was designed. Patients were entered onto the study at the time of the first cycle of 5FU-based chemotherapy. All patients received oral cryotherapy for 30 minutes with each dose of 5FU. In addition, each patient was randomized to receive either a sucralfate solution or a placebo solution to be used if they developed mouth tenderness or mouth sores. The study solution was to be used four times daily for 7 days starting on the first day of mouth tenderness or mouth sores. Stomatitis scores were determined by health care providers and by patients themselves. RESULTS: There was a total of 131 assessable patients entered onto this trial, 50 of whom developed mucositis and used the study medication (27 sucralfate and 23 placebo). There was no suggestion of any difference in stomatitis severity or duration on either protocol arm. CONCLUSION: The resultant data from this clinical trial did not support the prestudy hypothesis that sucralfate would be beneficial for the treatment of 5FU-induced stomatitis.


Asunto(s)
Antiulcerosos/uso terapéutico , Antimetabolitos Antineoplásicos/efectos adversos , Fluorouracilo/efectos adversos , Estomatitis/tratamiento farmacológico , Sucralfato/uso terapéutico , Método Doble Ciego , Humanos , Estudios Prospectivos , Estomatitis/inducido químicamente
5.
J Clin Oncol ; 15(11): 3320-9, 1997 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-9363861

RESUMEN

PURPOSE: A three-arm randomized phase III trial in advanced colorectal cancer patients was designed to test whether substitution of an equivalent dose of (1) l-leucovorin or (2) oral leucovorin would more effectively potentiate fluorouracil (5-FU) than standard intravenous (I.V.) (d,l)-leucovorin. PATIENTS AND METHODS: A total of 926 chemotherapy-naive patients participated. Patients received one of three treatments: (A) intensive-course 5-FU plus l-leucovorin with I.V. leucovorin (Immunex Corp, Seattle, WA) at 100 mg/m2 and I.V. 5-FU at 370 mg/m2; (B) intensive-course 5-FU plus oral (d,l)-leucovorin with oral leucovarin at 125 mg/m2 on hours 0, 1, 2, and 3 (total dose, 500 mg/m2) followed by 5-FU 370 mg/m2 on hour 4; or (C) intensive-course 5-FU plus I.V. (d,l)-leucovorin with I.V. leucovorin 200 mg/m2 and 5-FU 370 mg/m2. Drugs were administered daily for 5 consecutive days. Courses were repeated at 4 and 8 weeks, and every 5 weeks thereafter. Dosage was reduced for neutropenia, thrombocytopenia, diarrhea, stomatitis, and dermatitis. RESULTS: Of 926 eligible patients, 756 have died. The overall response rate for patients with measurable disease was 32% (165 of 514). There were no differences between regimens in response rates (arm A, 28% [47 of 140]; arm B, 34% [60 of 174]; and arm C, 34% [58 of 170]) or in survival. There have been nine possible chemotherapy-related fatalities. Grade III to IV toxic effects did not differ appreciably by arm and included stomatitis (12% to 14%), diarrhea (15% to 19%), nausea (7% to 9%), and vomiting (6% to 8%). CONCLUSION: There was no difference in response, survival, or toxicity between these three different leucovorin formulations combined with 5-FU.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Administración Oral , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neoplasias Colorrectales/mortalidad , Esquema de Medicación , Femenino , Fluorouracilo/administración & dosificación , Humanos , Inyecciones Intravenosas , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Análisis de Supervivencia , Resultado del Tratamiento
6.
J Clin Oncol ; 19(15): 3539-46, 2001 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-11481361

RESUMEN

PURPOSE: This article summarizes the third step of a research program to identify variables that supplement the predictive power of the the Eastern Cooperative Oncology Group (ECOG) performance status (PS) for survival. The objective was to produce a simple, practical, stratification factor for phase III oncology clinical trials involving patients with advanced malignant disease. PATIENTS AND METHODS: A questionnaire was administered to 729 patients with metastatic colorectal or lung cancers. Patients provided a Karnofsky index and appetite rating while physicians provided a survival estimate and the ECOG-PS. Scores for each item were categorized as having a positive, neutral, or negative indication for survival. A patient was classified as having a relatively good prognosis if three or more of the four items showed a positive indication, a bad prognosis if three or more items were negative, and an uncertain prognosis otherwise (Good/Bad/Uncertain [GBU] index). RESULTS: The GBU index improved on the prognostic power of a Cox model quartile index and PS alone and increased the accuracy of survival classification estimates by 5% to 10% more than ECOG-PS alone. For patients with PS of 0 or 1, significant survival patterns exist between GBU groups (P=.002 and.0001, respectively). CONCLUSION: The GBU index may be recommended as a supplementary stratification factor for certain future phase III trials in metastatic lung or colorectal cancer where patient heterogeneity is a particular concern. The GBU represents a relatively modest increase to the cost and patient burden of a clinical trial given the additional control that is achieved over the potentially confounding concomitant to the treatment variable.


Asunto(s)
Neoplasias Colorrectales/mortalidad , Neoplasias Pulmonares/mortalidad , Índice de Severidad de la Enfermedad , Anciano , Ensayos Clínicos Fase III como Asunto/métodos , Neoplasias Colorrectales/fisiopatología , Femenino , Humanos , Neoplasias Pulmonares/fisiopatología , Masculino , Valor Predictivo de las Pruebas , Pronóstico , Modelos de Riesgos Proporcionales , Encuestas y Cuestionarios , Análisis de Supervivencia
7.
Clin Cancer Res ; 6(9): 3486-92, 2000 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-10999733

RESUMEN

There continues to be a need for new systemic approaches for the treatment of advanced pancreatic cancer. The purpose of this study was to compare the antitumor activity of the somatostatin analogue octreotide to 5-fluorouracil chemotherapy in a Phase III setting. Eighty-four patients with an Eastern Cooperative Oncology Group performance status of 0 or 1 and limited tumor volume were randomized to receive octreotide 200 microg three times daily or 5-fluorouracil with or without leucovorin. After the first 12 patients had been randomized to octreotide, we increased the dose in the remaining patients to 500 microg three times daily. This change was based on early reports in other studies, suggesting that our original dose may not have been effective and that higher doses of octreotide were well tolerated. A planned interim analysis performed after 84 patients were enrolled demonstrated inferior time to progression and survival for the patients randomized to octreotide. Further accrual to the octreotide arm of this protocol was therefore terminated. Octreotide in doses of 200-500 microg three times daily does not delay progression or extend survival in patients with advanced pancreatic cancer compared with treatment with 5-fluorouracil with or without leucovorin.


Asunto(s)
Antimetabolitos Antineoplásicos/uso terapéutico , Antineoplásicos Hormonales/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma Ductal Pancreático/tratamiento farmacológico , Fluorouracilo/uso terapéutico , Octreótido/uso terapéutico , Neoplasias Pancreáticas/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Antimetabolitos Antineoplásicos/administración & dosificación , Antimetabolitos Antineoplásicos/efectos adversos , Antineoplásicos Hormonales/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Progresión de la Enfermedad , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Humanos , Leucovorina/administración & dosificación , Leucovorina/efectos adversos , Masculino , Persona de Mediana Edad , Octreótido/efectos adversos , Tasa de Supervivencia
8.
Lung Cancer ; 28(2): 157-62, 2000 May.
Artículo en Inglés | MEDLINE | ID: mdl-10717333

RESUMEN

We conducted a randomized phase II trial of two different schedules of topotecan in patients with advanced-stage non small lung cancer (NSCLC) without prior cytotoxic chemotherapy. All patients had histologic or cytologic confirmation of stage IV (M1) or III-B NSCLC. Patients were stratified by performance status, stage and weight loss. Patients were randomized to receive topotecan at intravenous doses of 1.5 mg/m(2)/day over 30 min for 5 days every 3 weeks (Arm A) or 1.3 mg/m(2)grade 3 in both arms included leukopenia, thrombocytopenia, malaise, constipation, diarrhea, lethargy, pulmonary, vomiting, infection and myalgia. Severe (> or = grade 3) thrombocytopenia occurred in 15.8% of Arm A patients and 37.8% of Arm B patients and this difference was statistically significant (P=0.03). The median times to progression are 101 and 63 days (P=0. 75) and the median survival times are 257 and 179 days (P=0.83) for Arms A and B, respectively. These differences in time to progression and overall survival are not statistically significant. Topotecan has limited, single agent activity in advanced NSCLC when given as 1. 5 mg/m(2)/day over 30 min for 5 days every 3 weeks. We do not intend to pursue further investigations with topotecan in patients with NSCLC.


Asunto(s)
Antineoplásicos/administración & dosificación , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Topotecan/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos/efectos adversos , Carcinoma de Pulmón de Células no Pequeñas/patología , Progresión de la Enfermedad , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Humanos , Infusiones Intravenosas , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Análisis de Supervivencia , Trombocitopenia/inducido químicamente , Resultado del Tratamiento
9.
J Pain Symptom Manage ; 13(2): 112-7, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9095569

RESUMEN

Based on evidence that suggested that systemically administered local anesthetics might be useful in chronic pain, we initiated a pilot study to evaluate the activity and toxicity of mexiletene and flecainide in the treatment of cancer pain. Twenty-one courses of either mexiletine or flecainide were administered to patients with an Eastern Cooperative Oncology Group performance status of three or better, who were suffering from cancer pain inadequately controlled with opioid analgesics. Pain control was assessed by patient questionnaires to monitor benefit and toxicity. In 17 cases, there was no suggestion of benefit. Two cases had relatively clear-cut analgesic benefit, and two others had some suggestion of mild-to-moderate analgesic relief. Flecainide was relatively well tolerated, but mexiletine appeared to cause nausea and/or vomiting in five of eight patients. This pilot trial suggests that systemically administered local anesthetics can relieve pain in a minority of patients with cancer pain.


Asunto(s)
Anestésicos Locales/uso terapéutico , Neoplasias/complicaciones , Dolor/tratamiento farmacológico , Administración Oral , Anestésicos Locales/efectos adversos , Estudios de Evaluación como Asunto , Humanos , Dolor/etiología , Proyectos Piloto
10.
Am J Clin Oncol ; 24(1): 10-8, 2001 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-11232942

RESUMEN

Histologic evaluation and reporting of invasive breast cancer has effectively used Nottingham combined histologic grade (NCHG). This approach to predict outcome in invasive breast cancer has not been tested in multicenter cooperative trials. Histologic slides from selected breast cancer cases entered on node-negative Eastern Cooperative Oncology Group trials were assigned grades. Two pathologists evaluated cases for NCHG defined from differentiation, mitotic index, and nuclear grade. The study population consisted of separate samples from low- and high-risk strata, where low risk was estrogen receptor positive with a tumor size of less than 3 cm and high risk was estrogen receptor negative or tumor size greater than or equal to 3 cm. The rate of agreement was generally good, with 80% of cases classified the same for mitotic count and 76% of the cases classified the same for combined grade. There were no cases disagreeing from the lowest to the highest of the three categories. The median follow-up is 11.6 years, but for analysis of survival, this was truncated at 5 years. Mitotic index and combined grade as assessed by both pathologists showed significant associations with survival. High combined histologic grade was predictive for response to cyclophosphamide/methotrexate/5-fluorouracil (CMF) with survival differences at 5 years of 30% in the treated high-grade patients over the untreated patients. Overall, it is clear that pathologists can have close agreement in assignment of combined histologic grades, with highly significant prediction in univariate and borderline significance in multivariate analysis in prognostication of time to recurrence as well as survival. Thus, stratification used in these trials was highly prognostic as hoped, leaving a role for histologic grading in these relatively large tumors, more powerful than S-phase analysis in this series. In the subgroups of high-risk patients randomized between CMF and observation, there was a suggestion that the high-combined-grade group was predictive of treatment efficacy. We conclude that a combined histologic grade with defined criteria may be reliably assigned by practiced pathologists using readily available criteria, and that the measure may be of use in prognostication and prediction of therapeutic responsiveness when done in a technically ideal fashion.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Ganglios Linfáticos/patología , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias de la Mama/mortalidad , Quimioterapia Adyuvante , Ciclofosfamida/administración & dosificación , Supervivencia sin Enfermedad , Femenino , Citometría de Flujo , Fluorouracilo/administración & dosificación , Humanos , Metástasis Linfática , Inutilidad Médica , Metotrexato/administración & dosificación , Análisis Multivariante , Valor Predictivo de las Pruebas , Prednisona/administración & dosificación , Modelos de Riesgos Proporcionales , Reproducibilidad de los Resultados , Fase S/fisiología , Tasa de Supervivencia
11.
Am J Clin Oncol ; 21(5): 475-8, 1998 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-9781603

RESUMEN

Cimetidine is an H2-receptor antagonist used in the management of peptic ulcer disease and other hypersecretory gastrointestinal disorders. This agent has intriguing immunomodulatory characteristics. A phase II trial of cimetidine in 19 patients with advanced malignant melanoma yielded an objective response rate of 16%. Having demonstrated that cimetidine is active in malignant melanoma, the authors conducted a phase II trial of cimetidine, 800 mg twice daily by mouth, in patients with advanced renal cell cancer. Among the 31 eligible patients, only one (3.2%) achieved a regression. It was a partial regression lasting 93 days. Median time to treatment failure was 83 days. The combination of interferon alpha-2A (IFL-RA) and 5-fluorouracil (5-FU) has been shown to be synergistic against experimental cell lines in vitro. Citrovorum factor (CF) added to 5-FU has been shown to improve objective tumor response compared with single-agent 5-FU in patients with advanced colorectal cancer. Fluorinated pyrimidines have shown some activity against renal cell cancer. We conducted a phase II trial of the combination of CF at 20 mg/m2 intravenous push followed by 5-FU at 325 mg/m2 intravenously daily for 5 days every week with interferon alpha-2A 5 x 10(6) units/m2 subcutaneously on days 1, 3, 5 in patients with advanced renal cell cancer. Among the 31 eligible patients, only two (6.5%) achieved a regression. Both were partial regressions. Median time to treatment failure was 84 days. Neither regimen is recommended for further testing in patients with advanced renal cell adenocarcinoma.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Renales/tratamiento farmacológico , Cimetidina/uso terapéutico , Antagonistas de los Receptores H2 de la Histamina/uso terapéutico , Neoplasias Renales/tratamiento farmacológico , Adulto , Anciano , Femenino , Fluorouracilo/administración & dosificación , Humanos , Interferón alfa-2 , Interferón-alfa/administración & dosificación , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Proteínas Recombinantes , Inducción de Remisión , Análisis de Supervivencia
14.
Soc Work Health Care ; 13(1): 101-12, 1987.
Artículo en Inglés | MEDLINE | ID: mdl-3448788

RESUMEN

One way to gain a better understanding of cancer patients' experiences in the workplace is to study their relationships with their co-workers. A study of 61 cancer patients who continued to work during treatment or who returned to work following treatment found that, in general, these cancer patients believed that their co-workers had positive attitudes toward them. Nevertheless, some reported that they encountered changed and sometimes difficult interactions with their co-workers. Their experiences suggest ways in which social workers can help cancer patients prepare for their encounters with co-workers.


Asunto(s)
Relaciones Interpersonales , Neoplasias/rehabilitación , Rehabilitación Vocacional/psicología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Prejuicio , Rol del Enfermo
15.
South Med J ; 79(6): 755-7, 1986 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-2424100

RESUMEN

Based upon the cases reported in this paper and upon a literature review encompassing 1,783 patients having received HAIC, it is our opinion that upper gastrointestinal tract ulceration is a potentially significant complication of hepatic artery infusion chemotherapy. In addition, we believe that the mechanism responsible for HAIC-induced ulceration often involves direct perfusion of the gastric arterial supply with chemotherapeutic agents. The occurrence of ulcerations in patients with surgically placed catheters is disconcerting, and does not allow for any apparent easy method of alleviating HAIC-induced ulceration. Clinicians should be alerted to the possibility of gastric and duodenal ulceration in patients treated with HAIC, and should afford particular attention to gastrointestinal symptoms during hepatic artery infusion chemotherapy.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Catéteres de Permanencia/efectos adversos , Úlcera Gástrica/inducido químicamente , Adenocarcinoma/tratamiento farmacológico , Femenino , Arteria Hepática , Humanos , Neoplasias Hepáticas/tratamiento farmacológico , Persona de Mediana Edad , Cuidados Paliativos , Agregado de Albúmina Marcado con Tecnecio Tc 99m
16.
Invest New Drugs ; 14(2): 235-7, 1996.
Artículo en Inglés | MEDLINE | ID: mdl-8913847

RESUMEN

Octreotide is a synthetic somatostatin analogue which has shown inhibitory activity against human breast cancer cells in culture. Ten patients with metastatic breast cancer and no prior hormonal therapy exposure received octreotide at 150 micrograms subcutaneously thrice daily. No objective responses were observed and the median time to treatment failure was short at 57 days.


Asunto(s)
Antineoplásicos Hormonales/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Octreótido/uso terapéutico , Anciano , Antineoplásicos Hormonales/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/patología , Femenino , Humanos , Persona de Mediana Edad , Metástasis de la Neoplasia , Octreótido/efectos adversos , Tamoxifeno/administración & dosificación , Tamoxifeno/uso terapéutico
17.
Ann Intern Med ; 119(2): 121-6, 1993 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-8099769

RESUMEN

OBJECTIVE: The Eastern Cooperative Oncology Group (ECOG) conducted a groupwide survey to determine the amount of knowledge about cancer pain and its treatment among physicians practicing in ECOG-affiliated institutions and to determine the methods of pain control being used by these physicians. DESIGN: Survey. SETTING: A questionnaire was sent to all ECOG physicians with patient care responsibilities (medical oncologists, hematologists, surgeons, and radiation therapists), practicing in university institutions, Community Clinical Oncology Program (CCOP) institutions, and Cooperative Group Outreach Programs (CGOP) institutions. MEASUREMENTS: A physician cancer pain questionnaire developed by the Pain Research Group at the University of Wisconsin was used. The questionnaire was designed to assess physicians' estimates of the magnitude of pain as a specific problem for cancer patients, their perceptions of the adequacy of cancer pain management, and their report of how they manage pain in their own practice setting. RESULTS: The study analyzed responses to 897 of 1800 surveys. In regard to the use of analgesics for cancer pain in the United States, 86% felt that the majority of patients with pain were undermedicated. Only 51% believed pain control in their own practice setting was good or very good; 31% would wait until the patient's prognosis was 6 months or less before they would start maximal analgesia. Adjuvants and prophylactic side-effect management should have been used more frequently in the treatment plan. Concerns about side-effect management and tolerance were reported as limiting analgesic prescribing. Poor pain assessment was rated by 76% of physicians as the single most important barrier to adequate pain management. Other barriers included patient reluctance to report pain and patient reluctance to take analgesics (both by 62%) as well as physician reluctance to prescribe opioids (61%). CONCLUSIONS: Professional education needs to focus on the proper assessment of pain, focus on the management of side effects, and focus on the use of adjuvant medications. A better understanding of the pharmacology of opioid analgesics is also needed. Physicians also need to educate patients to report pain and to effectively use the medications that are prescribed for pain management.


Asunto(s)
Analgésicos/uso terapéutico , Neoplasias/complicaciones , Dolor/tratamiento farmacológico , Pautas de la Práctica en Medicina/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Analgésicos Opioides/uso terapéutico , Prescripciones de Medicamentos/estadística & datos numéricos , Educación Médica , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Masculino , Persona de Mediana Edad , Dolor/etiología , Análisis de Regresión , Encuestas y Cuestionarios
18.
N Engl J Med ; 330(9): 592-6, 1994 Mar 03.
Artículo en Inglés | MEDLINE | ID: mdl-7508092

RESUMEN

BACKGROUND AND METHODS: Pain is often inadequately treated in patients with cancer. A total of 1308 outpatients with metastatic cancer from 54 treatment locations affiliated with the Eastern Cooperative Oncology Group rated the severity of their pain during the preceding week, as well as the degree of pain-related functional impairment and the degree of relief provided by analgesic drugs. Their physicians attributed the pain to various factors, described its treatment, and estimated the impact of pain on the patients' ability to function. We assessed the adequacy of prescribed analgesic drugs using guidelines developed by the World Health Organization, studied the factors that influenced whether analgesia was adequate, and determined the effects of inadequate analgesia on the patients' perception of pain relief and functional status. RESULTS: Sixty-seven percent of the patients (871 of 1308) reported that they had had pain or had taken analgesic drugs daily during the week preceding the study, and 36 percent (475 of 1308) had pain severe enough to impair their ability to function. Forty-two percent of those with pain (250 of the 597 patients for whom we had complete information) were not given adequate analgesic therapy. Patients seen at centers that treated predominantly minorities were three times more likely than those treated elsewhere to have inadequate pain management. A discrepancy between patient and physician in judging the severity of the patient's pain was predictive of inadequate pain management (odds ratio, 2.3). Other factors that predicted inadequate pain management included pain that physicians did not attribute to cancer (odds ratio, 1.9), better performance status (odds ratio, 1.8), age of 70 years or older (odds ratio, 2.4), and female sex (odds ratio, 1.5). Patients with less adequate analgesia reported less pain relief and greater pain-related impairment of function. CONCLUSIONS: Despite published guidelines for pain management, many patients with cancer have considerable pain and receive inadequate analgesia.


Asunto(s)
Atención Ambulatoria/normas , Analgésicos/uso terapéutico , Metástasis de la Neoplasia/fisiopatología , Dolor/tratamiento farmacológico , Cuidados Paliativos/normas , Adulto , Anciano , Anciano de 80 o más Años , Utilización de Medicamentos , Femenino , Necesidades y Demandas de Servicios de Salud , Humanos , Masculino , Persona de Mediana Edad , Dolor/fisiopatología , Dimensión del Dolor
19.
Cancer ; 89(8): 1699-705, 2000 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-11042563

RESUMEN

BACKGROUND: Topoisomerase I inhibitors have demonstrated clinical activity in patients with metastatic colorectal carcinoma. The authors performed a Phase II study to evaluate the objective tumor response rate of 2 different doses and schedules of 9-aminocamptothecin (9-AC) in previously untreated patients with measurable recurrent metastatic colorectal carcinoma. METHODS: Fifty-one patients were registered. One schedule evaluated 9-AC given at 1100 microgram/m(2)/24 hours by continuous infusion for 72 hours along with granulocyte-colony stimulating factor at 5 microgram/kg/day on Days 5 through 12. Another schedule involved 9-AC at 480 microgram/m(2)/24 hours by continuous infusion for 120 hours on Days 1, 8, and 15 given every 4 weeks. RESULTS: Forty-eight of 51 patients (94%) were evaluable (28 patients who received 72-hour infusion and 20 patients who received 120-hour infusion) for response and toxicity. Significant hematologic toxicities were encountered, especially with the 72-hour infusion schedule, in which 43% (12 of 28) and 28% (8 of 28) experienced Grade 4 (National Cancer Institute Common Toxicity Criteria) leukopenia and thrombocytopenia, respectively. Grade 4 neutropenia was encountered in 61% (17 of 28) and 11% (2 of 19) of patients on the 72-hour and 120-hour infusion schedules, respectively. Diarrhea, nausea, vomiting, and hepatotoxicity were troublesome nonhematologic toxicities. Seventy-nine percent (11 of 14) and 57% (4 of 7) of the patients experiencing Grade 3 or 4 nonhematologic toxicity were on the 72-hour infusion schedule. Three patients died of chemotherapy-related toxicity. One response was observed in 48 evaluable patients (2%). CONCLUSIONS: 9-AC did not demonstrate sufficient antitumor activity and had unacceptable toxicity in previously untreated patients with metastatic colorectal carcinoma.


Asunto(s)
Antineoplásicos/uso terapéutico , Camptotecina/análogos & derivados , Neoplasias Colorrectales/tratamiento farmacológico , Adulto , Anciano , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Camptotecina/administración & dosificación , Camptotecina/efectos adversos , Camptotecina/uso terapéutico , Neoplasias Colorrectales/patología , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Esquema de Medicación , Femenino , Factor Estimulante de Colonias de Granulocitos/uso terapéutico , Humanos , Infusiones Intravenosas , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Estadificación de Neoplasias , Análisis de Supervivencia , Factores de Tiempo
20.
Cancer ; 72(7): 2234-8, 1993 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-8374882

RESUMEN

BACKGROUND: The authors previously reported that 30 minutes of oral cryotherapy inhibits 5-fluorouracil (5-FU)-induced stomatitis. The current trial was designed to determine whether a longer duration of cryotherapy would provide additional protection. METHODS: This trial involved patients who were receiving their first course of a 5-FU plus leucovorin chemotherapy regimen, for which stomatitis is a major dose-limiting toxicity. These patients were randomized to receive either 30 or 60 minutes of oral cryotherapy given at around the same time as the 5-FU therapy. RESULTS: A total of 178 evaluable patients were studied. Both cryotherapy groups had similar degrees of mucositis. CONCLUSION: The authors continue to recommend the use of 30 minutes of oral cryotherapy for patients receiving bolus intensive courses of 5-FU-based chemotherapy.


Asunto(s)
Criocirugía/métodos , Fluorouracilo/análogos & derivados , Estomatitis/inducido químicamente , Estomatitis/prevención & control , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Humanos , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad
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