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1.
Neuro Oncol ; 22(6): 830-837, 2020 06 09.
Artículo en Inglés | MEDLINE | ID: mdl-32002556

RESUMEN

BACKGROUND: The optimal radiation dose for adult supratentorial low-grade glioma is unknown. The aim of this study was to provide a final update on oncologic and cognitive outcomes of high-dose versus low-dose radiation for low-grade glioma. METHODS: Between 1986 and 1994, 203 patients with supratentorial low-grade glioma were randomized (1:1) to 50.4 Gy in 28 fractions versus 64.8 Gy in 36 fractions after any degree of resection. RESULTS: For all patients, median overall survival (OS) was 8.4 years (95% CI: 7.2-10.8). Median progression-free survival (PFS) was 5.2 years (95% CI: 4.3-6.6). Median follow-up is 17.2 years for the 33 patients still alive. High-dose radiation did not improve 15-year OS (22.4%) versus low-dose radiation (24.9%, log-rank P = 0.978) or 15-year PFS (high dose, 15.2% vs low dose, 9.5%; P = 0.7142). OS was significantly better for patients with preoperative tumor diameter <5 cm and baseline Mini-Mental State Examination (MMSE) >27 and who underwent gross total resection. PFS was improved for patients with oligodendroglioma versus astrocytoma, preoperative tumor diameter <5 cm, patients who had gross total resection, and patients with baseline MMSE >27. For patients who had normal MMSE at baseline, at 7 years only 1 patient (5%) had a clinically significant decrease in MMSE from the previous time point, with the remainder (95%) stable. None had decrease in MMSE at 10, 12, or 15 years. CONCLUSIONS: Long-term follow-up indicates no benefit to high-dose over low-dose radiation for low-grade gliomas. Cognitive function appeared to be stable after radiation as measured by MMSE.


Asunto(s)
Astrocitoma , Neoplasias Encefálicas , Glioma , Adulto , Neoplasias Encefálicas/radioterapia , Cognición , Glioma/radioterapia , Humanos , Supervivencia sin Progresión , Estudios Prospectivos
2.
Surg Neurol Int ; 4(Suppl 4): S231-5, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23717794

RESUMEN

The multidisciplinary management of brain metastases has generated substantial controversy as treatment has diversified in recent years. Debate about the type, role, and timing of different diagnostic and therapeutic strategies has promoted rigorous scientific research into efficacy. However, much still remains unanswered in the treatment of this difficult disease process. This manuscript seeks to highlight some of the controversies identified in previous sections of this supplement, including prognosis, pathology, radiation and surgical treatment, neuroimaging, and the biochemical underpinnings of brain metastases. By recognizing what is yet unanswered, we hope to identify areas in which further research may yield promising results.

3.
J Support Oncol ; 9(3): 105-12, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21702402

RESUMEN

Vaginal dryness is a common problem for which effective and safe nonestrogenic treatments are needed. Based on preliminary promising data that pilocarpine attenuated vaginal dryness, the current trial was conducted. A double-blind, placebo-controlled, randomized trial design was used to compare pilocarpine, at target doses of 5 mg twice daily and 5 mg four times daily, with a placebo. Vaginal dryness was recorded by patient-completed questionnaires at baseline and weekly for 6 weeks after study initiation. The primary endpoint for this study was the area under the curve summary statistic composed of the longitudinal responses obtained at baseline and through the 6 weeks of treatment to a numerical analogue scale asking patients to rate their perceived amount of vaginal dryness. The primary analysis was carried out by a single t test using a two-side alternative to compare the collective pilocarpine treatment arms with the collective placebo arms. A total of 201 patients enrolled in this trial. The primary analysis, comparing vaginal dryness symptoms in the collective pilocarpine arms against the placebo arm, did not reveal any benefit for the pilocarpine treatment. This finding was confirmed by other secondary analyses. Toxicity evaluation revealed more nausea, sweating, rigors, and urinary frequency with the pilocarpine arms compared with the placebo arm.


Asunto(s)
Agonistas Muscarínicos/uso terapéutico , Pilocarpina/uso terapéutico , Enfermedades Vaginales/tratamiento farmacológico , Administración Oral , Adulto , Anciano , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Femenino , Humanos , Persona de Mediana Edad , Agonistas Muscarínicos/administración & dosificación , Agonistas Muscarínicos/efectos adversos , Pilocarpina/administración & dosificación , Pilocarpina/efectos adversos , Posmenopausia
5.
Am J Ther ; 13(4): 291-7, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16858161

RESUMEN

High-grade prostatic intraepithelial neoplasia (HGPIN) has been identified as a premalignant change in the prostate that indicates increased risk of the subsequent development of prostate adenocarcinoma. Prior studies have suggested that androgen deprivation therapy causes a regression of HGPIN. We therefore conducted a chemoprevention trial assessing the efficacy of flutamide in reducing the rate of prostate adenocarcinoma development in men with HGPIN. Men with biopsyproven HGPIN but no evidence of prostate adenocarcinoma were randomized in a double-blind manner to either flutamide 250 mg/d or a placebo. Treatment was continued for 1 year. Repeat biopsies were obtained at 12 and 24 months. Quality of life and toxicities related to treatment were also measured. Sixty patients were randomized and began therapy with either flutamide or placebo. At 1 year, 14% of men receiving flutamide and 10% of men receiving placebo had developed prostate adenocarcinoma. Flutamide-associated toxicities were mild to moderate in severity. Quality-of-life measures did not show any differences between the 2 groups. This study showed no evidence of benefit from flutamide as a chemoprevention agent in men with HGPIN.


Asunto(s)
Antineoplásicos Hormonales/uso terapéutico , Flutamida/uso terapéutico , Neoplasia Intraepitelial Prostática/tratamiento farmacológico , Neoplasias de la Próstata/prevención & control , Anciano , Anciano de 80 o más Años , Antineoplásicos Hormonales/efectos adversos , Método Doble Ciego , Flutamida/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Neoplasia Intraepitelial Prostática/psicología , Calidad de Vida
6.
Mayo Clin Proc ; 81(6): 758-67, 2006 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16770976

RESUMEN

OBJECTIVE: To prospectively assess whether low-molecular-weight heparin (LMWH) provides a survival benefit in patients with advanced cancer. PATIENTS AND METHODS: Between December 1998 and June 2001, we performed a randomized controlled study of patients with advanced cancer. Initially, the study was double blinded and placebo controlled, with the patients receiving daily injections of 5000 U of LMWH or saline. However, because of low accrual midway through the study, the placebo injection arm was eliminated, and the study became open labeled, with patients receiving either LMWH injections plus standard clinical care or standard clinical care alone. The primary study end point was overall survival. RESULTS: Of 141 patients randomized to this clinical trial, 3 dropped out, leaving 138 patients. The median survival time was 10.5 months (95% confidence interval, 7.6-12.2 months) for the combined standard care and placebo groups. The median survival time for the combined LMWH arms was 7.3 months (95% confidence interval, 4.8-12.2 months). These median survival times were not significantly different (log-rank P = .46). The median survival times for the blinded and unblinded LMWH groups were 6.2 months and 9.0 months, respectively. The median survival times were 10.3 months for the blinded placebo arm and 10.5 months for the standard care arm. The rate of severe or life-threatening venous thromboembolism was 6% in the LMWH arms and 7% in the control arms. The rate of severe or life-threatening bleeding was 3% in the LMWH arms and 7% in the control arms.


Asunto(s)
Anticoagulantes/uso terapéutico , Dalteparina/uso terapéutico , Neoplasias/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Anticoagulantes/efectos adversos , Dalteparina/efectos adversos , Método Doble Ciego , Femenino , Humanos , Inyecciones Subcutáneas , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Calidad de Vida , Análisis de Supervivencia
7.
J Clin Oncol ; 24(9): 1409-14, 2006 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-16505409

RESUMEN

PURPOSE: Vasomotor hot flashes are a common problem in menopausal women. Given concerns regarding estrogen and/or combined hormonal therapy, other treatment options are desired. Prior trials have confirmed that progestational agents and newer antidepressants effectively reduce hot flashes. This current trial compared a single intramuscular dose of medroxyprogesterone acetate (MPA), depot preparation, versus daily oral venlafaxine as treatment for hot flashes. METHODS: Women with bothersome hot flashes were entered onto this trial, were randomly assigned to treatment, and then had a baseline week where hot flash scores were recorded without treatment. They were then treated and observed for 6 weeks; daily diaries were used to measure hot flash frequencies and severities. There were 109 patients per each arm randomly assigned to receive MPA 400 mg intramuscularly for a single dose versus venlafaxine 37.5 mg per day for a week, then 75 mg per day. RESULTS: During the sixth week after random assignment, hot flash scores were reduced by 55% in the venlafaxine arm versus 79% in the MPA arm (P < .0001). In an intention-to-treat analysis, 46% of venlafaxine patients (50 of 109) compared with 74% of the MPA patients (81 of 109) had a decrease in hot flashes by more than 50% from baseline (P < .0001). Less toxicity was reported in the MPA arm. CONCLUSION: A single MPA dose seems to be well tolerated and more effectively reduces hot flashes than does venlafaxine.


Asunto(s)
Antineoplásicos Hormonales/uso terapéutico , Ciclohexanoles/uso terapéutico , Sofocos/tratamiento farmacológico , Acetato de Medroxiprogesterona/uso terapéutico , Inhibidores Selectivos de la Recaptación de Serotonina/uso terapéutico , Administración Oral , Adolescente , Adulto , Anciano , Antineoplásicos Hormonales/administración & dosificación , Antineoplásicos Hormonales/efectos adversos , Ciclohexanoles/administración & dosificación , Ciclohexanoles/efectos adversos , Quimioterapia Combinada , Femenino , Humanos , Acetato de Medroxiprogesterona/administración & dosificación , Acetato de Medroxiprogesterona/efectos adversos , Menopausia , Persona de Mediana Edad , Inhibidores Selectivos de la Recaptación de Serotonina/administración & dosificación , Inhibidores Selectivos de la Recaptación de Serotonina/efectos adversos , Resultado del Tratamiento , Clorhidrato de Venlafaxina
8.
J Clin Oncol ; 23(36): 9243-9, 2005 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-16230673

RESUMEN

PURPOSE: Surgical resection of liver-only metastases from colorectal cancer has undergone extensive evaluation and review. The use of neoadjuvant chemotherapy to improve the likelihood of resection in disease that is not optimally resectable has not been as well studied. PATIENTS AND METHODS: Patients with liver-only metastases from colorectal cancer deemed not optimally resectable by a surgeon with expertise in liver surgery received fluorouracil, leucovorin, and oxaliplatin (FOLFOX4). Patients were periodically reassessed for resectability. Surgical response was classified as completely resectable (S-CR), partially resectable (S-PR), or unresectable (S-UR). Study design specified the accrual of 39 patients, with two or more S-CRs considered evidence of promising activity with respect to increasing the S-CR rate. RESULTS: Forty-two of 44 patients were assessable for this analysis. Twenty-five patients (60%) had tumor reduction by serial imaging. Seventeen patients (40%) underwent surgery (S-CR, n = 14; S-PR, n = 1; and S-UR, n = 2) after a median of 6 months of chemotherapy. With a median postsurgical follow-up of 22 months (range, 13 to 32 months), 11 recurrences have occurred in the 15 S-CR and S-PR patients. Median survival time was 26 months. CONCLUSION: Our data suggest that FOLFOX4 has a high response rate (complete response, partial response, or reduction) in patients with liver-only metastases from colorectal cancer, allowing for successful resection of disease in a portion of patients initially not judged to be optimally resectable. However, a high recurrence rate after surgery was observed, which, in 73% of patients, involved the liver. Further trials are indicated based on the promising results observed in this trial.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/patología , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/secundario , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Progresión de la Enfermedad , Femenino , Fluorouracilo/administración & dosificación , Humanos , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante , Recurrencia Local de Neoplasia , Compuestos Organoplatinos/administración & dosificación
9.
Cancer ; 104(1): 176-82, 2005 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-15912493

RESUMEN

BACKGROUND: Shark cartilage has been a popular complementary or alternative medicine intervention. The basis for this popularity is the claim that sharks rarely get cancer because of the high proportion of cartilage in the shark's body. However, early studies were equivocal. Therefore, a clinical trial was conducted to look at the impact of shark cartilage in patients with advanced cancer. The primary goal of this trial was to determine whether a shark cartilage product improved overall survival for patients with advanced cancer who were getting standard care. Secondary research goals were to evaluate toxicities, tolerability, and quality of life associated with this shark cartilage product. METHODS: The study was a two-arm, randomized, placebo-controlled, double-blind, clinical trial. Patients with incurable breast or colorectal carcinoma had to have good performance status and organ function. Patients could be receiving chemotherapy. Patients were all to receive standard care and then to be randomly selected to receive either a shark cartilage product or an identical-appearing and smelling placebo 3 to 4 times each day. RESULTS: Data on a total of 83 evaluable patients were analyzed. There was no difference in overall survival between patients receiving standard care plus a shark cartilage product versus standard care plus placebo. Likewise, there was no suggestion of improvement in quality of life for patients receiving the shark cartilage, compared with those receiving placebo. CONCLUSION: This trial was unable to demonstrate any suggestion of efficacy for this shark cartilage product in patients with advanced cancer.


Asunto(s)
Neoplasias de la Mama/tratamiento farmacológico , Cartílago/química , Neoplasias Colorrectales/tratamiento farmacológico , Terapias Complementarias , Tiburones , Extractos de Tejidos/uso terapéutico , Anciano , Animales , Neoplasias de la Mama/psicología , Neoplasias Colorrectales/psicología , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Placebos , Calidad de Vida , Tasa de Supervivencia
10.
Cancer ; 103(1): 111-8, 2005 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-15558814

RESUMEN

BACKGROUND: Gemcitabine has broad activity in a variety of solid tumors including biliary tract carcinomas. The authors evaluated 6-month survival, response, and toxicity associated with a combination of gemcitabine, 5-fluorouracil (5-FU), and leucovorin (LV) in patients with unresectable or metastatic biliary tract or gallbladder adenocarcinoma (ACA). METHODS: A 4-week course included 1000 mg/m2 gemcitabine by intravenous infusion over 30 minutes on Days 1, 8, and 15, 25 mg/m2 LV by intravenous push, and 600 mg/m2 5-FU by intravenous push after LV. RESULTS: Forty-two patients were enrolled in 6 months, 35 of whom had metastatic disease. Patients with biliary tract ACA included 24 with hepatic disease (19 patients had intrahepatic disease and 5 patients had extrahepatic disease) and 4 with disease in the ampulla of Vater. All patients were evaluable and received a median of 4 courses of treatment (range, 1-21 courses). Commonly occurring severe toxicity (NCI CTC Grade 3 or worse) included: dyspnea (four patients), nausea (four patients), fatigue (seven patients), thrombocytopenia (six patients), emesis (four patients), and diarrhea (four patients). Five partial responses (9.5%) occurred, 3 of which were sustained for > or = 8 weeks. No treatment-related deaths occurred. Thirty-two patients had disease progression and 38 died after a median follow-up of 20 months (range, 1.4-24 months). The median time to disease progression was 4.6 months (95% confidence interval [95% CI], 2.4-6.6%). The median survival period was 9.7 months (95% CI, 7-12%). CONCLUSIONS: This combination regimen was manageable in patients with advanced biliary tract and gallbladder ACA. Of 42 patients, 24 (57%) survived > or = 6 months, satisfying the primary end point of the trial. The length of survival suggested that gemcitabine, 5-FU, and LV had benefit equivalent to gemcitabine alone.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias del Sistema Biliar/tratamiento farmacológico , Colangiocarcinoma/tratamiento farmacológico , Desoxicitidina/análogos & derivados , Neoplasias de la Vesícula Biliar/tratamiento farmacológico , Adenocarcinoma/patología , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neoplasias del Sistema Biliar/patología , Colangiocarcinoma/patología , Desoxicitidina/administración & dosificación , Femenino , Fluorouracilo/administración & dosificación , Neoplasias de la Vesícula Biliar/patología , Humanos , Infusiones Intravenosas , Inyecciones Intravenosas , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Análisis de Supervivencia , Gemcitabina
11.
J Clin Oncol ; 23(12): 2606-17, 2005 Apr 20.
Artículo en Inglés | MEDLINE | ID: mdl-15452187

RESUMEN

PURPOSE: To determine whether weekly epoetin alfa could improve hemoglobin (HgB) levels, reduce RBC transfusions, and improve quality of life (QOL) in patients with advanced cancer and with anemia after receiving myelosuppressive chemotherapy. PATIENTS AND METHODS: This double-blind, placebo-controlled study randomly assigned patients to placebo or epoetin alfa (Ortho Biotech, Bridgewater, NJ) 40,000 U subcutaneous weekly for 16 weeks. QOL, HgB, and RBC transfusions were measured pretreatment and monthly. RESULTS: The study accrued 344 patients; 330 were assessable for efficacy and 305 were assessable for QOL. Placebo-treated patients had a mean increase in HgB of 0.9 g/dL (range, -3.8 to +5.3) compared with 2.8 g/dL (range, -2.2 to +7.5) for epoetin-treated patients (P < .0001). During the study, 31.7% of placebo-treated patients achieved a > or = 2 g/dL HgB increase compared with 72.7% of epoetin-treated patients (P < .0001). The incidence of RBC transfusion for placebo and epoetin treatment arms was 39.6% and 25.3% (P = .005), respectively. The placebo group received 256 units of RBCs compared with 127 units in the epoetin group (P < .0001). The incidence of toxicity in the groups was similar. Changes in the average QOL scores from baseline to the end of the study were similar in the two groups (P = not significant). The HgB responders (irrespective of treatment arm) had a mean change in Functional Assessment of Cancer Therapy (FACT) fatigue score from a baseline of +5.1 compared with -2.1 for the nonresponders (P = .006). CONCLUSION: Epoetin alfa significantly improved HgB and reduced transfusions in this patient population. These results support the use of weekly epoetin alfa as an ameliorative agent for cancer-related anemia.


Asunto(s)
Anemia/inducido químicamente , Anemia/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Eritropoyetina/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Transfusión Sanguínea , Neoplasias de la Mama/tratamiento farmacológico , Método Doble Ciego , Esquema de Medicación , Epoetina alfa , Eritropoyetina/administración & dosificación , Femenino , Hemoglobinas/análisis , Humanos , Inyecciones Subcutáneas , Neoplasias Pulmonares/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Neoplasias/tratamiento farmacológico , Placebos , Calidad de Vida , Proteínas Recombinantes , Resultado del Tratamiento
12.
Cancer Invest ; 22(4): 537-44, 2004.
Artículo en Inglés | MEDLINE | ID: mdl-15565811

RESUMEN

INTRODUCTION: HER-2/neu overexpression has been associated with poor prognosis in a variety of malignancies. The extent and relevance of HER-2/neu overexpression in human central nervous system (CNS) malignancies is unclear. We retrospectively analyzed a large cohort of patients with primary malignant brain tumors to evaluate the role of HER-2/neu overexpression, clinical characteristics at presentation, and other predisposing factors as predictors of survival. MATERIALS AND METHODS: Records of 347 adult patients (193 males, 154 females) diagnosed and followed between 1986 and 2001 with a biopsy-proven diagnosis of a primary malignant brain tumor at a tertiary care oncology center were reviewed. Archival pathologic samples were analyzed for HER-2/neu overexpression using the Hercep immunohistochemical (IHC) assay (DAKO). A score of 2+ or greater on the assay was considered positive for HER-2/neu overexpression. Mortality and its predictors were evaluated using multiple logistic regression. (This study was approved and reviewed by the Institutional Review Board Committee [IRB] of University of North Dakota School of Medicine and Health Sciences.) RESULTS: Among the 347 adult patients with a mean age of 53 years (range; 41-73 years), overall mean survival was 23 months (range; 0-151 months). It was found that 10.4% of the archival pathologic samples showed presence of HER-2/neu overexpression by IHC. The HER-2/neu overexpression predicted significantly increased mortality [p = 0.01, analysis of variance (ANOVA)]. Other clinical predictors associated with increased mortality included site of tumor (occipital and parietal lobes) (p = 0.02, ANOVA), tumor histology (glioblastoma) (p < 0.01, ANOVA), and presenting symptom (nausea/vomiting) (p < 0.01, ANOVA). Also, there was a higher incidence of associated primary malignancies (outside the CNS) in the HER-2/neu overexpression group (30% vs. 7%). CONCLUSIONS: HER-2/neu overexpression seen in 10.4% appears to predict a slight increased mortality in patients with primary malignant brain tumors, especially glioblastoma multiforme, and is associated with a high incidence of a second primary malignancy outside the CNS. Additionally, our data suggests that other clinical variables were predictive of increased mortality, including tumor location (occipital), histology (glioblastoma), and presenting symptoms (nausea/vomiting). The large, heterogeneous sample employed in our study allows more definitive conclusions to be made with regard to the usefulness of HER-2/neu and other clinical predictors of survival in patients with primary brain tumors.


Asunto(s)
Neoplasias Encefálicas/metabolismo , Receptor ErbB-2/metabolismo , Adulto , Anciano , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/patología , Femenino , Glioblastoma/metabolismo , Glioblastoma/patología , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia
13.
Lung Cancer ; 44(3): 347-53, 2004 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15140548

RESUMEN

BACKGROUND: This study evaluated the activity and tolerance for the combination of oral etoposide and paclitaxel as first-line therapy for patients with extensive SCLC. METHODS: A total of 57 patients were enrolled in this study. A cycle of chemotherapy consisted of oral etoposide administered as 50 mg BID on days 1 through 10 and paclitaxel administered as 150 mg/m(2) IV (3 h infusion) along with the first dose of etoposide on day 10. Patients were assessed for response to therapy (regression, stable disease, progression), survival, time to disease progression, and toxicity. RESULTS/CONCLUSIONS: Fifty-five patients were evaluable for efficacy parameters. Among the 55 patients, there were six with complete regression of disease, 18 with partial regression, 11 with regression, five with stable disease, and 15 with progressive disease, yielding an overall response rate of 63.6% (95% confidence interval, 50.0-76.0%). The 6-month and 1-year progression-free survival rates were 48.2 and 18.9%, respectively. The median time to disease progression was 5.8 months. The overall survival rates were 67.3% at 6 months and 41.8% at 1 year. The combination of oral etoposide and paclitaxel demonstrated significant efficacy as first-line therapy for extensive SCLC, with an overall response rate of 63.6% for 55 evaluable patients. In addition, the treatment was well tolerated with no unexpected toxicities.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Carcinoma de Células Pequeñas/tratamiento farmacológico , Etopósido/administración & dosificación , Neoplasias Pulmonares/tratamiento farmacológico , Paclitaxel/administración & dosificación , Administración Oral , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Pequeñas/patología , Sinergismo Farmacológico , Femenino , Humanos , Infusiones Intravenosas , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Análisis de Supervivencia , Resultado del Tratamiento
14.
Am J Clin Oncol ; 26(4): 332-5, 2003 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-12902879

RESUMEN

Her-2/neu or c-erbB-2, a 185-kD protein is an important prognostic indicator/target for therapy in metastatic breast carcinoma. Recent reports have also identified a role for Her-2/neu overexpression in other solid tumors. We performed a retrospective analysis to evaluate the prevalence and prognostic role of Her-2/neu overexpression in patients with glioblastoma multiforme (GBM). Data collection (chart review) included demographic information, symptoms at presentation, histologic grade, survival time, and treatment offered. Testing for Her-2/neu overexpression was performed on paraffin-embedded archival tumor tissue using immunohistochemistry (IHC) (Hercep test). An IHC score of 2+ or greater was considered overexpression. An experienced pathologist who was blinded from the clinical history performed all the IHC testing. Between 1990 and 2001, 149 subjects (68 females, 81 males) with a biopsy-proven diagnosis of GBM were identified. Age range was 26 to 79 years (mean: 64 years) and overall mean survival was 12 months. Her-2/neu overexpression was detected in 23 patients (15.4%). Interestingly, the median survival for patients whose pathologic specimens revealed Her-2/neu overexpression was 4 months compared to those who lacked overexpression, in whom survival was 8 months. After adjusting for age, performance status, smoking history, and treatment, logistic regression analysis (with a survival of <3 months as the dependent variable) revealed that Her-2/neu overexpression significantly (p < 0.01) increased the odds of early mortality (<3 months). The results of our large study indicate that Her-2/neu overexpression may be a poor prognostic marker in patients with GBM. In addition, in a proportion of subjects (15.4%), Her-2/neu may be a potential target for tumor-specific monoclonal antibody therapy. The role of trastuzumab (alone or in combination with conventional therapy) needs to be evaluated.


Asunto(s)
Glioblastoma/metabolismo , Glioblastoma/mortalidad , Receptor ErbB-2/metabolismo , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Análisis de Supervivencia
15.
Cancer ; 97(10): 2498-503, 2003 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-12733149

RESUMEN

BACKGROUND: The objective of this study was to test the response rate and toxicity of alternating chemotherapy in previously untreated patients with extensive-stage small cell lung carcinoma (SCLC). METHODS: Patients with histologically proven, extensive-stage SCLC, with a performance status of 0-2, and who had received no prior chemotherapy were eligible. The design was a two-stage, Phase II, multicenter trial. Treatment consisted of alternating chemotherapy every 3 weeks with etoposide (100 mg/m(2) on Days 1-3) and cisplatin (30 mg/m(2) on Days 1-3) on Cycles 1, 3, 5 and with topotecan (1 mg/m(2) on Days 1-5) and paclitaxel (200 mg/m(2) on Day 5) on Cycles 2, 4, and 6. Filgrastim support was given with Cycles 2, 4, 6. RESULTS: Forty-four patients were eligible and evaluable. The primary toxicity was myelosuppression. The median absolute neutrophil count was 300/microL with 70% Grade 4 neutropenia. The median platelet count was 58,000/microL with 23% Grade 4 thrombocytopenia. Grade 4 nonhematologic toxicities occurred in 16% of patients. Overall toxicities were not different between the two regimens. There were no treatment-related deaths. Complete or partial responses occurred in 34 patients (77%). The median time to progression was 6.9 months, with a median survival of 10.5 months and with 1-year and 2-year survival rates of 37% and 12%, respectively. CONCLUSIONS: The regimen of alternating chemotherapy was associated with substantial myelosuppression and resulted in a high response rate and good overall survival. The results were similar to those reported in prior trials and did not suggest any improvement in therapy for patients with SCLC.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Pequeñas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carcinoma de Células Pequeñas/mortalidad , Carcinoma de Células Pequeñas/patología , Cisplatino/administración & dosificación , Esquema de Medicación , Etopósido/administración & dosificación , Femenino , Humanos , Illinois , Indiana , Iowa , Neoplasias Pulmonares/mortalidad , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Minnesota , Nebraska , Estadificación de Neoplasias , North Dakota , Paclitaxel/administración & dosificación , South Dakota , Análisis de Supervivencia , Topotecan/administración & dosificación , Resultado del Tratamiento
16.
Nicotine Tob Res ; 5(2): 181-7, 2003 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-12745490

RESUMEN

This multicenter, randomized, open-label clinical trial was conducted to determine whether the combined use of nicotine patch therapy and a nicotine nasal spray would improve smoking abstinence rates compared to either treatment alone, without behavioral counseling. Data were collected at 15 regional cancer control oncology centers within the North Central Cancer Treatment Group. Of the 1384 smokers randomized to the study, 20% were abstinent from smoking at 6 weeks and 8% were abstinent at 6 months. At 6 weeks, the 7-day point prevalence smoking abstinence rate for the patch alone (21.1%) was superior to the spray (13.6%) but was significantly lower than the rate for combination therapy (27.1%). At 6 months, the 7-day point prevalence abstinence rates were not significantly different among the three groups. Combination nicotine nasal spray and nicotine patches were delivered safely in a nonspecialized outpatient clinical setting and enhanced short-term smoking abstinence rates, but these rates were not sustained at 6 months.


Asunto(s)
Nicotina/administración & dosificación , Agonistas Nicotínicos/administración & dosificación , Cese del Hábito de Fumar/métodos , Fumar/terapia , Administración Cutánea , Administración Intranasal , Adulto , Atención Ambulatoria , Terapia Combinada , Femenino , Humanos , Incidencia , Masculino , Prevalencia , Fumar/epidemiología , Cese del Hábito de Fumar/estadística & datos numéricos , Factores de Tiempo
17.
Am J Clin Oncol ; 26(2): 188-91, 2003 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-12714894

RESUMEN

Sarcomas currently represent 1% of adult malignancies and 15% of pediatric malignancies. To determine the prevalence of HER-2/neu overexpression by the histologic type and to identify a possible predictive role in patients with sarcoma, we performed a retrospective study on subjects with a biopsy-proven diagnosis of a soft tissue sarcoma. HER-2/neu overexpression was evaluated using immunohistochemistry (IHC) performed on paraffin-embedded specimens. An IHC score of 2+ or greater was considered positive for overexpression. Two hundred seventy-three patients with soft tissue sarcoma were identified (164 females, 109 males) with a mean age of 56 (range: 1-93). The most common tumors identified were malignant fibrous histiocytoma (MFH) (18.3%), dermatofibrosarcoma (DFS) (16.1%), leiomyosarcoma (13.2%) and carcinosarcomas (CS) (7.3%). Of the 273 specimens, 29 (10.6%) revealed HER-2/neu overexpression. CS, MFH, and DFS specimens showed the highest incidence of HER-2/neu overexpression (40%, 26%, and 18.2%, respectively). The incidence of HER-2/neu overexpression was found to be significantly higher in patients with a survival of less than 8 months (p = 0.035). This demonstrates that HER-2/neu overexpression is preferentially seen in certain soft tissue sarcomas, and when present is associated with a poorer prognosis in patients with sarcoma. Further studies would delineate whether HER-2/neu overexpression renders sarcomas chemoresistant and thus adversely affects outcome. In addition, there may be a role for Herceptin (trastuzumab) alone, or in combination with conventional therapy, in patients with CS, MHF, and DFS.


Asunto(s)
Receptor ErbB-2/metabolismo , Sarcoma/metabolismo , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Carcinosarcoma/metabolismo , Niño , Preescolar , Dermatofibrosarcoma/metabolismo , Femenino , Histiocitoma Fibroso Benigno/metabolismo , Humanos , Inmunohistoquímica , Lactante , Leiomiosarcoma/metabolismo , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Pronóstico , Estudios Retrospectivos , Sarcoma/patología , Análisis de Supervivencia
18.
J Clin Oncol ; 21(2): 251-5, 2003 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-12525516

RESUMEN

PURPOSE: The purpose of this article is to determine the response rate and toxicity of PCV administered before radiation therapy in patients with newly diagnosed LGO/LGOA and to explore correlations between response with 1p/19q deletions and aberrant p53 expression. BACKGROUND: Despite prolonged survival of patients with low-grade oligodendroglioma (LGO) and oligoastrocytoma (LGOA), the majority will succumb to progressive disease. Because procarbazine, lomustine (CCNU), and vincristine (PCV) is active in patients with recurrent LGO/LGOA, we hypothesized that it would be beneficial as primary therapy. METHODS: Adult patients with residual tumor on magnetic resonance imaging scan following biopsy or subtotal resection of LGO/LGOA received up to six cycles of PCV. Radiation therapy (59.4 or 54.0 Gy) began within 10 weeks of completing chemotherapy or immediately if there was evidence of tumor progression on PCV. Tumor tissue was analyzed by fluorescent in situ hybridization for 1p and 19q deletion and by immunohistochemistry for p53 expression. RESULTS: Eight of 28 (29%) and 13 of 25 (52%) eligible patients demonstrated tumor regression as assessed by the treating physician and a blinded central neuroradiology reviewer, respectively. Myelosuppression was the predominant toxicity. Loss of 1p and 19q were associated with LGO but not LGOA (P =.009), were inversely associated with p53 detection, and were not associated with response to PCV (possibly because of the small sample size). CONCLUSION: PCV produces tumor regressions in a meaningful proportion of patients with LGO/LGOA. Toxicity, especially myelosuppression, is significant. Loss of 1p and 19q seems limited to patients with pure LGO and is inversely related to p53 alterations.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Astrocitoma/tratamiento farmacológico , Neoplasias Encefálicas/tratamiento farmacológico , Aberraciones Cromosómicas , Lomustina/uso terapéutico , Oligodendroglioma/tratamiento farmacológico , Procarbazina/uso terapéutico , Vincristina/uso terapéutico , Adulto , Astrocitoma/genética , Astrocitoma/patología , Neoplasias Encefálicas/genética , Neoplasias Encefálicas/patología , Deleción Cromosómica , Cromosomas Humanos Par 1/genética , Cromosomas Humanos Par 19/genética , Femenino , Humanos , Hibridación Fluorescente in Situ , Masculino , Persona de Mediana Edad , Oligodendroglioma/genética , Oligodendroglioma/patología , Pronóstico , Radioterapia Adyuvante
19.
Am J Clin Oncol ; 25(6): 547-51, 2002 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-12477995

RESUMEN

A randomized phase III study was conducted to assess the addition of molgramostim (GM-CSF) to the combination of methotrexate, vinblastine, doxorubicin, and cisplatin (MVAC) in terms of response rate, progression-free survival, and survival in women with advanced, recurrent, or metastatic carcinoma of the cervix or vagina. Patients received four 4-week cycles of methotrexate 30 mg/m2 IV days 1, 15, 22; vinblastine 3 mg/m2 IV days 2, 15, 22; doxorubicin 30 mg/m2 IV day 2; and cisplatin 70 mg/m2 IV day 2 with or without GM-CSF 5 microg/kg every 12 hours subcutaneously days 3 to 12. They were then reevaluated for operability. Those who were not surgical candidates were offered additional chemotherapy until progression or toxicity. Those who were surgical candidates were offered surgical resection of remaining tumor followed by involved-field external beam irradiation to sites of no prior irradiation and intraoperative irradiation to sites of prior external beam irradiation. This trial closed after 36 eligible patients were entered because of poor accrual. Although more than 40% of patients on each arm received fewer than four cycles of MVAC, the clinical response rate was 78% (95% CI: 52-94%) and 50% (95% CI: 26-74%) for MVAC and MVAC + GM-CSF, respectively; the median time to progression was 10.2 and 11.8 months, respectively; and median survival was 13.8 and 16.0 months, respectively. Toxicity was substantial, with more than 40% experiencing grade III to IV leukopenia, and nearly 40% experiencing grade III to IV stomatitis. MVAC with or without GM-CSF support achieves high response rates in patients with advanced, recurrent, or metastatic cervical carcinoma despite dose reductions and deletions. Its progression-free survival and overall survival rates appear promising. These results need to be confirmed within a large randomized phase III clinical trial.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Factor Estimulante de Colonias de Granulocitos y Macrófagos/uso terapéutico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Proteínas Recombinantes/uso terapéutico , Neoplasias del Cuello Uterino/tratamiento farmacológico , Neoplasias Vaginales/tratamiento farmacológico , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Cisplatino/administración & dosificación , Terapia Combinada , Doxorrubicina/administración & dosificación , Femenino , Humanos , Metotrexato/administración & dosificación , Persona de Mediana Edad , Metástasis de la Neoplasia , Recurrencia Local de Neoplasia/radioterapia , Recurrencia Local de Neoplasia/cirugía , Análisis de Supervivencia , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/radioterapia , Neoplasias del Cuello Uterino/cirugía , Neoplasias Vaginales/patología , Neoplasias Vaginales/radioterapia , Neoplasias Vaginales/cirugía , Vinblastina/administración & dosificación
20.
Cancer ; 95(5): 1022-7, 2002 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-12209686

RESUMEN

BACKGROUND: Chemotherapy options for the patients with advanced urothelial carcinoma and renal dysfunction are limited. The authors performed a Phase II trial of paclitaxel plus carboplatin in patients with advanced carcinoma of the urothelium and renal dysfunction. METHODS: Forty-two patients were accrued; 37 eligible patients were treated. Patients received paclitaxel 225 mg/m(2) over three hours followed by carboplatin targeted area under the concentration-time curve = 6 mg/mL. minute every three weeks for up to six cycles. RESULTS: The median number of cycles received was four (range, one to six). The objective response rate was 24.3% (95% confidence interval, 11.9-41.7%). The median progression free survival was 3 months and the median overall survival was 7.1 months. The number of poor prognostic risk factors (Eastern Cooperative Oncology Group performance status > 1 or lung, liver, or bone metastases) significantly predicted for survival. The most common > or = 1 Grade 3 toxicities included granulocytopenia (60%) and neurotoxicity (35%). CONCLUSIONS: Paclitaxel/carboplatin is a chemotherapy option for patients with advanced urothelial carcinoma and renal dysfunction. Future trials in chemotherapy development for this patient population are warranted.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma/tratamiento farmacológico , Enfermedades Renales/complicaciones , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Carboplatino/administración & dosificación , Carcinoma/patología , Femenino , Humanos , Infusiones Intravenosas , Masculino , Persona de Mediana Edad , Paclitaxel/administración & dosificación , Pronóstico , Análisis de Supervivencia , Neoplasias de la Vejiga Urinaria/patología
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