Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 58
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Psychooncology ; 24(11): 1448-55, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25613039

RESUMEN

OBJECTIVE: The aim of this study was to investigate medical decision-making capacity (MDC) in patients with brain metastases. METHODS: Participants were 41 adults with brain metastases with Karnofsky Performance Status scores of ≥70 who were recruited from an academic medical center and 41 demographically matched controls recruited from the community. We evaluated MDC using the Capacity to Consent to Treatment Instrument and its four clinically relevant consent standards (expressing a treatment choice, appreciation, reasoning, and understanding). Capacity impairment ratings (no impairment, mild/moderate impairment, and severe impairment) on the consent standards were also assigned to each participant with brain metastasis using cutoff scores derived statistically from the performance of the control group. RESULTS: The brain metastasis patient group performed significantly below controls on consent standards of understanding and reasoning. Capacity compromise was defined as performance ≤1.5 standard deviations below the control group mean. Using this definition, approximately 60% of the participants with brain metastases demonstrated capacity compromise on at least one MDC standard. CONCLUSION: When defining capacity compromise as performance ≤1.5 standard deviation below the control group mean, over half of patients with brain metastases have reduced capacity to make treatment decisions. This impairment is demonstrated shortly after initial diagnosis of brain metastases and highlights the importance of routine clinical assessment of MDC following diagnosis of brain metastasis. These results also indicate a need for the development and investigation of interventions to support or improve MDC in this patient population.


Asunto(s)
Neoplasias Encefálicas/psicología , Toma de Decisiones , Consentimiento Informado/psicología , Competencia Mental , Metástasis de la Neoplasia , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Encefálicas/terapia , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad
2.
J Neurooncol ; 120(1): 179-85, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25035099

RESUMEN

Cognitive impairment is a common symptom in patients with brain metastasis, and significant cognitive dysfunction is prevalent in a majority of patients who are still able to engage in basic self-care activities. In the current study, the neurocognitive performance of 32 patients with brain metastasis and 32 demographically-matched controls was examined using a battery of standardized neuropsychological tests, with the goal of comprehensively examining the cognitive functioning of newly diagnosed brain metastasis patients. The cognition of all patients was assessed within 1 week of beginning treatment for brain metastasis. Results indicated impairments in verbal memory, attention, executive functioning, and language in relation to healthy controls. Performance in relation to appropriate normative groups was also examined. Overall, cognitive deficits were prevalent and memory was the most common impairment. Given that cognitive dysfunction was present in this cohort of patients with largely minimal functional impairment, these results have implications for patients, caregivers and health care providers treating patients with brain metastasis.


Asunto(s)
Neoplasias Encefálicas/complicaciones , Trastornos del Conocimiento/etiología , Trastornos del Conocimiento/psicología , Adulto , Anciano , Anciano de 80 o más Años , Atención/fisiología , Neoplasias Encefálicas/psicología , Neoplasias Encefálicas/secundario , Neoplasias Encefálicas/terapia , Estudios de Casos y Controles , Función Ejecutiva/fisiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Memoria/fisiología , Persona de Mediana Edad , Estadificación de Neoplasias , Pruebas Neuropsicológicas , Pronóstico
3.
Psychooncology ; 23(6): 626-33, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24339329

RESUMEN

OBJECTIVE: Longitudinal neuropsychological assessments were performed to determine if adjuvant chemotherapy was associated with cognitive dysfunction in men with non-seminomatous germ cell tumors (NSGCT). METHODS: Patients with NSGCT status post-orchiectomy that either received adjuvant chemotherapy (n = 55) or did not (n = 14) were recruited. Patients were tested before chemotherapy, 1 week post-chemotherapy (or 3 months later in the surveillance group) and 12 months after the baseline evaluation. RESULTS: Compared with the surveillance group, patients treated with chemotherapy had higher rates of cognitive decline at 12 months (overall cognitive decline: 0%, 52%, and 67% in the surveillance, low exposure (LE), and high exposure (HE) group, respectively), greater number of tests that declined (mean of 0.1, 1.4, and 2.0 in the surveillance, LE, and HE group, respectively), and more frequent worsening in motor dexterity (0%, 48%, and 46% in the surveillance, LE, and HE group, respectively). Compared with the surveillance group, patients receiving more cycles of chemotherapy demonstrated worse psychomotor speed and learning and memory. Younger age was associated with greater incidence of overall cognitive decline at 12-month follow-up. CONCLUSIONS: Men with NSGCT that received chemotherapy demonstrated greater rates of cognitive decline in a dose-response manner. Reductions in motor dexterity were most common. Decline in learning and memory also was evident particularly at later follow-up time points and in men receiving more chemotherapy. Men that receive chemotherapy for NSGCT are at risk for cognitive decline and may benefit from monitoring and referral for psychosocial care.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Trastornos del Conocimiento/psicología , Neoplasias de Células Germinales y Embrionarias/terapia , Neoplasias Testiculares/terapia , Adolescente , Adulto , Estudios de Casos y Controles , Quimioterapia Adyuvante , Relación Dosis-Respuesta a Droga , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Neoplasias de Células Germinales y Embrionarias/psicología , Pruebas Neuropsicológicas , Orquiectomía , Estudios Prospectivos , Neoplasias Testiculares/psicología , Adulto Joven
4.
Cancer ; 119(21): 3830-8, 2013 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-24037801

RESUMEN

BACKGROUND: Neurosurgical resection and whole-brain radiation therapy (WBRT) are accepted treatments for single and oligometastatic cancer to the brain. To avoid the decline in neurocognitive function (NCF) linked to WBRT, the authors conducted a prospective, multicenter, phase 2 study to determine whether surgery and carmustine wafers (CW), while deferring WBRT, could preserve NCF and achieve local control (LC). METHODS: NCF and LC were measured in 59 patients who underwent resection and received CW for a single (83%) or dominant (oligometastatic, 2 to 3 lesions) metastasis and received stereotactic radiosurgery (SRS) for tiny nodules not treated with resection plus CW. Preservation of NCF was defined as an improvement or a decline ≤ 1 standard deviation from baseline in 3 domains: memory, executive function, and fine motor skills, evaluated at 2-month intervals. RESULTS: Significant improvements in executive function and memory occurred throughout the 1-year follow-up. Preservation or improvement of NCF occurred in all 3 domains for the majority of patients at each of the 2-month intervals. NCF declined in only 1 patient. The chemowafers were well tolerated, and serious adverse events were reversible. There was local recurrence in 28% of the patients at 1-year follow-up. CONCLUSIONS: Patients with brain metastases had improvements in their cognitive trajectory, especially memory and executive function, after treatment with resection plus CW. The rate of LC (78%) was comparable to historic rates of surgery with WBRT and superior to reports of WBRT alone. For patients who undergo resection for symptomatic or large-volume metastasis or for tissue diagnosis, the addition of CW can be considered as an option.


Asunto(s)
Neoplasias Encefálicas/tratamiento farmacológico , Neoplasias Encefálicas/cirugía , Carmustina/administración & dosificación , Cognición/efectos de los fármacos , Recurrencia Local de Neoplasia/prevención & control , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos Alquilantes/administración & dosificación , Neoplasias Encefálicas/secundario , Cognición/fisiología , Trastornos del Conocimiento/epidemiología , Trastornos del Conocimiento/prevención & control , Terapia Combinada , Implantes de Medicamentos , Femenino , Humanos , Infusiones Intralesiones , Masculino , Persona de Mediana Edad , Procedimientos Neuroquirúrgicos
5.
Invest New Drugs ; 30(1): 316-26, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20839029

RESUMEN

BACKGROUND: TAS-106 is a novel nucleoside analog that inhibits RNA polymerases I, II and II and has demonstrated robust antitumor activity in a wide range of models of human cancer in preclinical studies. This study was performed to principally evaluate the feasibility of administering TAS-106 as a bolus intravenous (IV) infusion every 3 weeks. PATIENTS AND METHODS: Patients with advanced solid malignancies were treated with escalating doses of TAS-106 as a single bolus IV infusion every 3 weeks. Plasma and urine sampling were performed during the first course to characterize the pharmacokinetic profile of TAS-106 and assess pharmacodynamic relationships. RESULTS: Thirty patients were treated with 66 courses of TAS-106 at eight dose levels ranging from 0.67-9.46 mg/m(2). A cumulative sensory peripheral neuropathy was the principal dose-limiting toxicity (DLT) of TAS-106 at the 6.31 mg/m(2) dose level, which was determined to be the maximum tolerated dose (MTD). Other mild-moderate drug-related toxicities include asthenia, anorexia, nausea, vomiting, myelosuppression, and dermatologic effects. Major objective antitumor responses were not observed. The pharmacokinetics of TAS-106 were dose-proportional. The terminal elimination half-life (t(1/2)) averaged 11.3 ± 3.3 h. Approximately 71% of TAS-106 was excreted in the urine as unchanged drug. Pharmacodynamic relationships were observed between neuropathy and: C(5min;) AUC(0-inf;) and dermatologic toxicity. CONCLUSIONS: The recommended phase II dose of TAS-106 is 4.21 mg/m(2). However, due to a cumulative drug-related peripheral sensory neuropathy that proved to be dose-limiting, further evaluation of this bolus every 21 day infusion schedule will not be pursued and instead, an alternate dosing schedule of TAS-106 administered as a continuous 24-hour infusion will be explored to decrease C(max) in efforts to minimize peripheral neuropathy and maximize antitumor activity.


Asunto(s)
Antineoplásicos/administración & dosificación , Citidina/análogos & derivados , Inhibidores Enzimáticos/administración & dosificación , Inhibidores Enzimáticos/farmacocinética , Neoplasias/tratamiento farmacológico , ARN Polimerasa III/antagonistas & inhibidores , ARN Polimerasa II/antagonistas & inhibidores , ARN Polimerasa I/antagonistas & inhibidores , Adulto , Anciano , Antineoplásicos/efectos adversos , Antineoplásicos/farmacocinética , Área Bajo la Curva , Biotransformación , Citidina/administración & dosificación , Citidina/efectos adversos , Citidina/farmacocinética , Esquema de Medicación , Inhibidores Enzimáticos/efectos adversos , Estudios de Factibilidad , Femenino , Semivida , Humanos , Infusiones Intravenosas , Estimación de Kaplan-Meier , Masculino , Dosis Máxima Tolerada , Tasa de Depuración Metabólica , Persona de Mediana Edad , Neoplasias/enzimología , Neoplasias/genética , Neoplasias/patología , ARN Polimerasa I/metabolismo , ARN Polimerasa II/metabolismo , ARN Polimerasa III/metabolismo , Texas , Resultado del Tratamiento
6.
J Neurooncol ; 108(2): 227-30, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22451194

RESUMEN

As targeted therapies advance treatment for brain tumors, standard clinical trial endpoints of survival, progression free survival and radiographic response have become insufficient to capture clinical benefit. Brain cancer is a malignancy with neurodegenerative features. In this setting prolongation of life and/or radiographic stability are less clinically meaningful if neurocognitive function substantially declines. Hence evaluation of new therapeutic strategies should routinely include periodic assessment of neurocognitive function.


Asunto(s)
Neoplasias Encefálicas/terapia , Ensayos Clínicos como Asunto/métodos , Determinación de Punto Final , Calidad de Vida , Proyectos de Investigación/normas , Terapia Cognitivo-Conductual , Humanos
7.
Lancet Oncol ; 10(11): 1037-44, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19801201

RESUMEN

BACKGROUND: It is unclear whether the benefit of adding whole-brain radiation therapy (WBRT) to stereotactic radiosurgery (SRS) for the control of brain-tumours outweighs the potential neurocognitive risks. We proposed that the learning and memory functions of patients who undergo SRS plus WBRT are worse than those of patients who undergo SRS alone. We did a randomised controlled trial to test our prediction. METHODS: Patients with one to three newly diagnosed brain metastases were randomly assigned using a standard permutated block algorithm with random block sizes to SRS plus WBRT or SRS alone from Jan 2, 2001, to Sept 14, 2007. Patients were stratified by recursive partitioning analysis class, number of brain metastases, and radioresistant histology. The randomisation sequence was masked until assignation, at which point both clinicians and patients were made aware of the treatment allocation. The primary endpoint was neurocognitive function: objectively measured as a significant deterioration (5-point drop compared with baseline) in Hopkins Verbal Learning Test-Revised (HVLT-R) total recall at 4 months. An independent data monitoring committee monitored the trial using Bayesian statistical methods. Analysis was by intention-to-treat. This trial is registered at www.ClinicalTrials.gov, number NCT00548756. FINDINGS: After 58 patients were recruited (n=30 in the SRS alone group, n=28 in the SRS plus WBRT group), the trial was stopped by the data monitoring committee according to early stopping rules on the basis that there was a high probability (96%) that patients randomly assigned to receive SRS plus WBRT were significantly more likely to show a decline in learning and memory function (mean posterior probability of decline 52%) at 4 months than patients assigned to receive SRS alone (mean posterior probability of decline 24%). At 4 months there were four deaths (13%) in the group that received SRS alone, and eight deaths (29%) in the group that received SRS plus WBRT. 73% of patients in the SRS plus WBRT group were free from CNS recurrence at 1 year, compared with 27% of patients who received SRS alone (p=0.0003). In the SRS plus WBRT group, one case of grade 3 toxicity (seizures, motor neuropathy, depressed level of consciousness) was attributed to radiation treatment. In the group that received SRS, one case of grade 3 toxicity (aphasia) was attributed to radiation treatment. Two cases of grade 4 toxicity in the group that received SRS alone were diagnosed as radiation necrosis. INTERPRETATION: Patients treated with SRS plus WBRT were at a greater risk of a significant decline in learning and memory function by 4 months compared with the group that received SRS alone. Initial treatment with a combination of SRS and close clinical monitoring is recommended as the preferred treatment strategy to better preserve learning and memory in patients with newly diagnosed brain metastases.


Asunto(s)
Neoplasias Encefálicas/radioterapia , Neoplasias Encefálicas/cirugía , Cognición/efectos de la radiación , Irradiación Craneana/efectos adversos , Memoria/efectos de la radiación , Traumatismos por Radiación/etiología , Radiocirugia , Aprendizaje Verbal/efectos de la radiación , Adulto , Anciano , Anciano de 80 o más Años , Teorema de Bayes , Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/psicología , Neoplasias Encefálicas/secundario , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Selección de Paciente , Modelos de Riesgos Proporcionales , Traumatismos por Radiación/psicología , Radioterapia Adyuvante/efectos adversos , Medición de Riesgo , Terapia Recuperativa , Factores de Tiempo , Resultado del Tratamiento
8.
J Neurooncol ; 95(2): 231-237, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19484406

RESUMEN

Cognitive changes associated with interferon treatment include impaired verbal memory, attention, processing speed, and executive functioning. Pegylated interferon is a relatively new, long-lasting form of interferon alpha, but data regarding its cognitive effects in brain tumor patients are limited. Participants in this study were 35 primary brain tumor patients who received pegylated interferon at tumor recurrence. A neuropsychological battery assessed verbal memory, executive functioning, attention, information processing speed, and language functioning. Individual growth curve analyses were used to estimate cognitive change throughout treatment with interferon. Results revealed performance declined on a task of psychomotor speed and upper extremity dexterity. Although decline in a few tests was found, its degree may have been reduced because individuals were tested after tumor recurrence where a substantial amount of cognitive change had already potentially occurred due to surgery, radiation therapy, and chemotherapy. Thus, participants may not have been starting at their baseline cognitive status and the potential neurotoxic effects of interferon may have been obscured by prior treatments. An alternative explanation, however, is that treatment with pegylated interferon did not produce further impairment and patients experienced stability in their cognitive functioning.


Asunto(s)
Antineoplásicos/uso terapéutico , Antivirales/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Cognición/efectos de los fármacos , Interferón-alfa/uso terapéutico , Polietilenglicoles/uso terapéutico , Adulto , Neoplasias Encefálicas/patología , Portadores de Fármacos , Femenino , Humanos , Interferón alfa-2 , Masculino , Pruebas Neuropsicológicas , Pronóstico , Proteínas Recombinantes , Tasa de Supervivencia , Resultado del Tratamiento
9.
J Int Neuropsychol Soc ; 15(6): 1002-11, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-19807940

RESUMEN

Cognitive and affective complaints are common in patients with primary hyperparathyroidism (PHPT), but few studies have used psychometric testing to document these symptoms and their response to parathyroidectomy. The current study sought to clarify the nature of cognitive and affective impairments in PHPT and changes postparathyroidectomy. One hundred eleven patients with PHPT underwent neuropsychological evaluation prior to parathyroidectomy with 68 returning for an early postsurgical evaluation. Changes in cognition were assessed using practice effect corrected reliable change indices. Biochemical and anesthesia variables were compared between groups who improved and declined. In a subset of patients, assessment revealed a significant pattern of cognitive slowing, reductions in psychomotor speed, memory impairment, and depression prior to parathyroidectomy. Postsurgical evaluations revealed a trend for improvements on timed tests and depression but a decline in memory. Older patients responded less well to surgical intervention, as did patients who experienced more dramatic changes in biochemical status following surgery. Cognitive changes early postparathyroidectomy are characterized by improved information processing speed and decline in verbal memory, with younger patients more likely to recover during this acute phase. The need for longer-term follow-up studies and increasing utilization of neuropsychological assessments in this population are discussed.


Asunto(s)
Afecto/fisiología , Cognición/fisiología , Hiperparatiroidismo Primario/complicaciones , Hiperparatiroidismo Primario/cirugía , Paratiroidectomía , Adulto , Anciano , Anciano de 80 o más Años , Calcio/metabolismo , Depresión/etiología , Femenino , Estudios de Seguimiento , Humanos , Hiperparatiroidismo Primario/metabolismo , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Hormona Paratiroidea/metabolismo , Psicometría , Reproducibilidad de los Resultados , Estadística como Asunto , Vitamina D/metabolismo
11.
Curr Opin Obstet Gynecol ; 18(1): 24-8, 2006 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-16493256

RESUMEN

PURPOSE OF REVIEW: Women diagnosed with ovarian cancer or breast cancer often face aggressive chemotherapy involving multiple treatment regimens. These treatments may be associated with significant side-effects that adversely impact patient quality of life. In this review, we will highlight recent research on side-effects of chemotherapy and the quality-of-life concerns of women with ovarian and breast cancer. RECENT FINDINGS: Adjuvant chemotherapy has demonstrated efficacy in the management of ovarian and breast cancers. In addition to physical side-effects, a subset of women receiving chemotherapy will experience significant cognitive dysfunction that adversely affects their perceived quality of life. Variables including disease response, treatment indication and extent of the patient's social support also influence quality-of-life ratings. SUMMARY: Although prolongation of survival remains the primary goal of chemotherapy, the palliation of symptoms and preservation of quality of life are also important treatment considerations. Chemotherapy may be associated with nausea, vomiting, hair loss, cognitive dysfunction, fatigue, changes in sexual functioning and reductions in quality-of-life ratings. Although rare to date, prospective, randomized, longitudinal studies that incorporate a pre-treatment assessment of symptom burden and perceived quality of life are necessary to define the severity and pattern of treatment-related change and subsequently guide intervention strategies. In some cases, quality-of-life issues may help to guide patient-care decisions.


Asunto(s)
Antineoplásicos/efectos adversos , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Calidad de Vida , Antineoplásicos/uso terapéutico , Femenino , Humanos
12.
J Clin Oncol ; 22(1): 157-65, 2004 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-14701778

RESUMEN

PURPOSE: To report the neurocognitive findings in a phase III randomized trial evaluating survival and neurologic and neurocognitive function in patients with brain metastases from solid tumors receiving whole-brain radiation therapy (WBRT) with or without motexafin gadolinium (MGd). PATIENTS AND METHODS: Patients were randomly assigned to receive WBRT 30 Gy in 10 fractions with or without MGd 5 mg/kg/d. Monthly neurocognitive testing for memory, executive function, and fine motor skill was performed. RESULTS: Four hundred one patients were enrolled (251 with non-small-cell lung cancer, 75 with breast cancer, and 75 with other cancers); 90.5% patients had impairment of one or more neurocognitive tests at baseline. Neurocognitive test scores of memory, fine motor speed, executive function, and global neurocognitive impairment at baseline were correlated with brain tumor volume and predictive of survival. There was no statistically significant difference between treatment arms in time to neurocognitive progression. Patients with lung cancer (but not other types of cancer) who were treated with MGd tended to have improved memory and executive function (P =.062) and improved neurologic function as assessed by a blinded events review committee (P =.048). CONCLUSION: Neurocognitive tests are a relatively sensitive measure of brain functioning; a combination of tumor prognostic variables and brain function assessments seems to predict survival better than tumor variables alone. Although the addition of MGd to WBRT did not produce a significant overall improvement between treatment arms, MGd may improve memory and executive function and prolong time to neurocognitive and neurologic progression in patients with brain metastases from lung cancer.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias Encefálicas/radioterapia , Neoplasias Encefálicas/secundario , Neoplasias de la Mama/patología , Trastornos del Conocimiento/etiología , Irradiación Craneana , Neoplasias Pulmonares/patología , Metaloporfirinas/uso terapéutico , Adulto , Anciano , Antineoplásicos/administración & dosificación , Irradiación Craneana/efectos adversos , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Trastornos de la Memoria/etiología , Metaloporfirinas/administración & dosificación , Persona de Mediana Edad , Destreza Motora , Psicometría , Análisis de Supervivencia , Resultado del Tratamiento
13.
J Clin Oncol ; 20(16): 3445-53, 2002 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-12177105

RESUMEN

PURPOSE: Motexafin gadolinium is a redox mediator that selectively targets tumor cells, is detectable by magnetic resonance imaging (MRI), and enhances the effect of radiation therapy. This lead-in phase to a randomized trial served to evaluate radiologic, neurocognitive, and neurologic progression end points and to evaluate the safety and radiologic response of motexafin gadolinium administered concurrently with 30 Gy in 10-fraction whole-brain radiation therapy for the treatment of brain metastases. PATIENTS AND METHODS: Motexafin gadolinium (5.0 mg/kg/d for 10 days) was administered before each radiation treatment in this prospective international trial. Patients were evaluated by MRI, neurologic examinations, and neurocognitive tests. Prospective criteria and centralized review procedures were established for radiologic, neurocognitive, and neurologic progression end points. RESULTS: Twenty-five patients with brain metastases from lung (52%) and breast (24%) cancer, recursive partitioning analysis class 2 (96%), and an average of 11 brain metastases were enrolled. Neurocognitive function was highly impaired at presentation. Motexafin gadolinium was well tolerated. Freedom from neurologic progression was 77% at 1 year. Median survival was 5.0 months. In 29% of patients, the cause of death was brain metastasis progression. The radiologic response rate was 68%. Motexafin gadolinium's tumor selectivity was established with MRI. CONCLUSION: (1) Centralized neurologic progression scoring that incorporated neurocognitive tests was implemented successfully. (2) Motexafin gadolinium was well tolerated. (3) Local control, measured by radiologic response rate, neurologic progression, and death caused by progression of brain metastasis, seemed to be improved compared with historical results. A randomized phase III trial using these methods for evaluation of efficacy has just been completed.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias Encefálicas/secundario , Neoplasias Encefálicas/terapia , Irradiación Craneana , Metaloporfirinas/uso terapéutico , Adulto , Anciano , Cognición/efectos de los fármacos , Supervivencia sin Enfermedad , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante , Estudios Prospectivos , Tasa de Supervivencia
14.
J Clin Oncol ; 20(22): 4440-7, 2002 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-12431966

RESUMEN

PURPOSE: Preclinical studies suggested that the antiangiogenic agent TNP-470 was synergistic with cytotoxic therapy. TNP-470 was administered with paclitaxel to adults with solid tumors to define the safety and optimal dose of the combination regimen and to assess pharmacokinetic interactions. PATIENTS AND METHODS: Thirty-two patients were enrolled chronologically onto one of two treatment arms. Arm A involved a fixed TNP-470 dose with escalating doses of paclitaxel, and Arm B involved a fixed paclitaxel dose with escalating doses of TNP-470. Paclitaxel and TNP-470 pharmacokinetics were evaluated along with toxicity. RESULTS: The combination of TNP-470 administered at 60 mg/m(2) three times per week and paclitaxel 225 mg/m(2) administered over 3 hours every 3 weeks was defined as both the maximum-tolerated dose and the optimal dose. Myelosuppression was similar to that expected with paclitaxel alone. Mild to moderate neurocognitive impairment was observed; however, the majority of changes were subclinical and reversible as determined by prestudy and poststudy neuropsychiatric test results. A clinically insignificant decrease of paclitaxel clearance was observed for the combination. Median survival for all patients was 14.1 months. Partial responses were reported in eight (25%) of 32 patients and in six (38%) of 16 patients with NSCLC, 60% of whom had received prior chemotherapy. CONCLUSION: The combination of TNP-470 and paclitaxel, each at full single-agent dose, seems well tolerated, with minimal pharmacokinetic interaction between the two agents. Further studies of TNP-470 with chemotherapy regimens are warranted in NSCLC and other solid tumors.


Asunto(s)
Inhibidores de la Angiogénesis/efectos adversos , Inhibidores de la Angiogénesis/farmacocinética , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/farmacocinética , Carcinoma de Pulmón de Células no Pequeñas/tratamiento farmacológico , Neoplasias Pulmonares/tratamiento farmacológico , Paclitaxel/efectos adversos , Paclitaxel/farmacocinética , Sesquiterpenos/efectos adversos , Sesquiterpenos/farmacocinética , Adulto , Anciano , Inhibidores de la Angiogénesis/administración & dosificación , Antibióticos Antineoplásicos/efectos adversos , Antibióticos Antineoplásicos/farmacocinética , Antineoplásicos Fitogénicos/efectos adversos , Antineoplásicos Fitogénicos/farmacocinética , Carcinoma de Pulmón de Células no Pequeñas/metabolismo , Ciclohexanos , Esquema de Medicación , Femenino , Humanos , Neoplasias Pulmonares/metabolismo , Masculino , Persona de Mediana Edad , O-(Cloroacetilcarbamoil) Fumagilol , Paclitaxel/administración & dosificación , Sesquiterpenos/administración & dosificación , Sesquiterpenos/química , Resultado del Tratamiento
15.
J Clin Oncol ; 22(21): 4282-9, 2004 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-15514370

RESUMEN

PURPOSE: Fenretinide induces apoptosis in malignant gliomas in vitro. This two-stage phase II trial was conducted to determine the efficacy of fenretinide in adults with recurrent malignant gliomas. PATIENTS AND METHODS: Twenty-two patients with anaplastic gliomas (AG) and 23 patients with glioblastoma (GBM) whose tumors had recurred after radiotherapy and no more than two chemotherapy regimens were enrolled. Fenretinide was given orally on days 1 to 7 and 22 to 28 in 6-week cycles in doses of 600 or 900 mg/m(2) bid. RESULTS: Six of 21 (29%) patients in the AG arm and two of 23 (9%) patients in the GBM arm had stable disease at 6 months. One patient with AG treated at 900 mg/m(2) bid dosage had a partial radiologic response. Median progression-free survival (PFS) was 6 weeks for the AG arm and 6 weeks for the GBM arm. PFS at 6 months was 10% for the AG arm and 0% for the GBM arm. Grade 1 or 2 fatigue, dryness of skin, anemia, and hypoalbuminemia were the most frequent toxicities reported. The trial was closed after the first stage because of the inadequate activity at the fenretinide doses used. The first-administration mean plasma C(max) for fenretinide was 832 +/- 360 ng/mL at the 600 mg/m(2) bid dosage and 1,213 +/- 261 ng/mL at the 900 mg/m(2) bid dosage. CONCLUSION: Fenretinide was inactive against recurrent malignant gliomas at the dosage used in this trial. However, additional studies using higher doses of the agent are warranted based on the tolerability of the agent and the potential for activity of a higher fenretinide dosage, as suggested in this trial.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Fenretinida/uso terapéutico , Glioma/tratamiento farmacológico , Administración Oral , Adulto , Anciano , Antineoplásicos/administración & dosificación , Neoplasias Encefálicas/radioterapia , Femenino , Fenretinida/administración & dosificación , Glioma/radioterapia , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Análisis de Supervivencia , Resultado del Tratamiento
16.
Neuro Oncol ; 5(2): 89-95, 2003 04.
Artículo en Inglés | MEDLINE | ID: mdl-12672280

RESUMEN

Current treatments for brain cancer have, for the most part, equivocal survival benefit. However, clinical trials of new anticancer agents do not adequately assess potential clinical benefits for patient function other than survival and time to tumor progression. We evaluated 56 patients with recurrent brain tumors who were recruited on phase 1 and phase 2 clinical trials and given assessments of cognitive function, quality of life (QOL), and ability to perform activities of daily living (ADL) prior to receiving treatment and at intervals coinciding with MRI scans, generally monthly. Meaningful change on the cognitive and functional assessments was determined by the reliable change index. Cognitive or functional deterioration was then used as a time-dependent covariate in a Cox proportional hazards regression model with tumor progression, as defined by standard criteria, as the end point. Cognitive deterioration occurred 6 weeks prior to radiographic failure (median 7.4 weeks vs. 13.4 weeks). In contrast, median time for QOL to deteriorate was not achieved. Median time for instrumental ADL to decline was 43 weeks, long after tumor progression. For patients with brain cancer, brain function began to worsen before MRI evidence of tumor progression. QOL and ADL function were not strongly tied to cognitive decline or to time to tumor progression, suggesting that these measures may not be sufficiently sensitive to change in clinical trials of new anticancer agents, although they are important measures in terms of patient care. This study also demonstrates the feasibility of performing neurocognitive testing in this patient population. New drugs that slow the cognitive decline of brain tumor patients may be of clinical benefit regardless of the impact on overall survival.


Asunto(s)
Astrocitoma/psicología , Neoplasias Encefálicas/psicología , Ensayos Clínicos como Asunto/estadística & datos numéricos , Trastornos del Conocimiento/psicología , Glioblastoma/psicología , Imagen por Resonancia Magnética , Actividades Cotidianas/psicología , Adulto , Anciano , Astrocitoma/complicaciones , Astrocitoma/patología , Neoplasias Encefálicas/complicaciones , Neoplasias Encefálicas/patología , Trastornos del Conocimiento/diagnóstico , Trastornos del Conocimiento/etiología , Intervalos de Confianza , Femenino , Glioblastoma/complicaciones , Glioblastoma/patología , Humanos , Imagen por Resonancia Magnética/estadística & datos numéricos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas/estadística & datos numéricos , Modelos de Riesgos Proporcionales , Calidad de Vida/psicología
17.
Neuro Oncol ; 5(4): 255-60, 2003 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-14565162

RESUMEN

This retrospective study investigated the relationship between tumor histology and postsurgical cognitive function in patients diagnosed with malignant brain tumors. The neuropsychological functioning of 24 adult patients diagnosed with glioblastoma multiforme (GBM) was compared with the neuropsychological functioning of 24 adult patients diagnosed with anaplastic astrocytoma (AA). The groups were matched with respect to patient age, gender, and education, as well as tumor location and tumor volume. The mean raw test scores of the AA patient group were superior to the mean scores of the GBM patient group on nearly all measures administered. However, significant performance differences were not detected for any of 5 neuropsychological domain scores (Intellectual, Language, Memory, Executive, and Motor Function). Analysis of covariance (ANCOVA) revealed that tumor histology was not a significant predictor of domain score after controlling for tumor volume. Multiple regression and correlation analyses supported the results of the ANCOVA by offering further evidence of weak relationships between tumor type, tumor volume, and neuropsychological test scores. We conclude that tumor histology is not clearly predictive of cognitive performance in adults with AA and GBM.


Asunto(s)
Astrocitoma/psicología , Neoplasias Encefálicas/psicología , Cognición/fisiología , Glioblastoma/psicología , Pruebas Neuropsicológicas/estadística & datos numéricos , Adulto , Análisis de Varianza , Astrocitoma/cirugía , Neoplasias Encefálicas/cirugía , Femenino , Glioblastoma/cirugía , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
18.
Cancer Chemother Pharmacol ; 54(4): 308-14, 2004 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15184994

RESUMEN

PURPOSE: Preclinical studies have demonstrated a synergistic effect with the angiogenesis inhibitor TNP-470 and several cytotoxic agents. A recent clinical trial with the combination of paclitaxel and TNP-470 has shown promising effects. The present study was designed to determine the toxicity and pharmacokinetics of carboplatin in combination with TNP-470 in comparison with the doublet regimen of paclitaxel and carboplatin in patients with solid tumors. EXPERIMENTAL DESIGN: Enrolled in the study were 17 patients with lung (11), head/neck (3), sarcoma (2) and thymoma (1). The patients received intravenous paclitaxel and carboplatin on day 1 followed by TNP-470 (60 mg/m(2) i.v. over 1 h administered thrice weekly on Monday, Wednesday, and Friday). Each cycle of therapy consisted of 3 weeks. The initial cohort of three patients received carboplatin at AUC 5 mg/ml x min. No dose-limiting toxic effects occurred, thus the subsequent cohort received carboplatin at AUC 6 mg/ml x min. In addition to toxicity, the pharmacokinetics of carboplatin were evaluated, and tumor response and patient survival rates were assessed. RESULTS: The administered regimen of paclitaxel (225 mg/m(2) i.v. over 3 h) and carboplatin (AUC 6 mg/ml x min i.v. over 1 h) on day 1 followed by TNP-470 (60 mg/m(2) i.v. over 1 h administered thrice weekly on Monday, Wednesday, and Friday) was defined as both the maximum tolerated and optimal dose. Hematological toxic effects were similar to those expected with the chemotherapy doublet. All neurocognitive impairments were graded as mild to moderate and reversed after discontinuation of TNP-470 administration. No alterations in the pharmacokinetic disposition of carboplatin were noted. Overall, the median survival duration was 297 days. Four patients (24%) had a partial response, and eight (47%) had stable disease. CONCLUSIONS: The combination of TNP-470, paclitaxel, and carboplatin is a reasonably well tolerated regimen. Further randomized studies of TNP-470 with this doublet regimen are now warranted for non-small-cell lung carcinoma and other solid tumors.


Asunto(s)
Inhibidores de la Angiogénesis/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias/tratamiento farmacológico , Paclitaxel/administración & dosificación , Sesquiterpenos/administración & dosificación , Adulto , Anciano , Inhibidores de la Angiogénesis/farmacocinética , Carboplatino , Ciclohexanos , Femenino , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Neoplasias/metabolismo , O-(Cloroacetilcarbamoil) Fumagilol , Sesquiterpenos/farmacocinética
19.
Neurosurgery ; 52(4): 791-8; discussion 798, 2003 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-12657174

RESUMEN

OBJECTIVE: This study assessed the neuropsychological outcome of patients after surgical treatment for third ventricle brain tumors. Neuropsychological consequences of surgical intervention can have a major impact on patients' quality of life and therefore have important implications for treatment planning. METHODS: A retrospective analysis of 33 patients' neuropsychological data was performed. All patients received a comprehensive neuropsychological evaluation after treatment for a primary brain tumor in the third ventricular region. Twenty-six patients underwent surgery, 14 via the transcallosal approach and 12 via a subfrontal, left transcortical, right pterional, or infratentorial supracerebellar approach. Seven patients were not treated by surgical intervention. RESULTS: There was a significantly elevated frequency of cognitive impairment relative to normative values in memory, executive functioning, and fine manual speed and dexterity. There were no differences in mean neuropsychological scores between patients who underwent surgery and those who did not. There were no differences in mean performance on the basis of surgical approach, tumor infiltration, or history of cranial irradiation. Repeated measures data available for two patients revealed memory impairment before and after surgery, and one patient experienced major improvement after surgery on a measure of mental flexibility and problem solving. CONCLUSION: Patients with third ventricle tumors are at risk for developing impairments in memory, executive function, and fine manual speed and dexterity, which are domains associated with frontal subcortical functions. In the current study, different types of treatment were not associated with differential cognitive sequelae, and surgical intervention did not account for cognitive deficits.


Asunto(s)
Daño Encefálico Crónico/diagnóstico , Neoplasias del Ventrículo Cerebral/cirugía , Pruebas Neuropsicológicas , Complicaciones Posoperatorias/diagnóstico , Tercer Ventrículo/cirugía , Adolescente , Adulto , Craneotomía/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Psicometría , Calidad de Vida , Estudios Retrospectivos , Factores de Riesgo
20.
Neurosurgery ; 54(2): 358-66; discussion 366-7, 2004 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-14744282

RESUMEN

OBJECTIVE: To study the incidence of depression among patients undergoing surgery for high-grade glioma, document factors associated with the presence of depression, and examine the relationship between depression and patient outcome. METHODS: Physician and patient reports of depression were analyzed immediately postoperatively and again 3 and 6 months after surgery for high-grade glioma. Physician-reported depression was defined according to the Diagnostic and Statistical Manual of Mental Disorders, ed 4. Patient self-assessment of depression was based on responses to questions contained in two validated functional status surveys. Concordance of physician- and patient-reported depression was examined, along with the extent of use of pharmacological treatment for depression. Additional outcomes examined included quality of life, survival, patient satisfaction, and posttreatment complications. RESULTS: Data from 598 patients were analyzed. In the early postoperative period, physicians reported depression in 15% of patients, whereas 93% of patients reported symptoms consistent with depression. The incidence of patient self-reported depression remained similar at 3- and 6-month follow-up, whereas physician reported depression increased from 15% in the early postoperative period to 22% at both 3- and 6-month follow-up. Concordance between physician recognition of depression and treatment of depression was low initially (33%) and increased at 3 and 6 months (51 and 60%, respectively). As compared with patients who were not depressed, survival was shorter and complications were more common among depressed patients. CONCLUSION: Symptoms of depression were common immediately after surgery for glioma, and they increased throughout the 6-month period after surgery. These findings support the hypothesis that clinically important depression is a common complication in patients with high-grade glioma. Concordance between physician recognition of depression and self-reports of depression by patients was low. Concordance between physician recognition of depression and initiation of pharmacological antidepressant therapy was fair in the early postoperative period and improved somewhat over the subsequent 6-month period; however, within the 6-month period after surgery for glioma, antidepressant therapy was provided for only 60% of patients in whom the physician recognized depressive symptoms and in only 15% of patients who self-reported symptoms of depression. Findings from this observational study suggest the need for a controlled trial that is designed to test the hypothesis that more attention to the identification of postoperative depression and aggressive treatment of depressive symptoms can improve the quality of life and survival of patients after surgery for high-grade glioma.


Asunto(s)
Neoplasias Encefálicas/psicología , Neoplasias Encefálicas/cirugía , Trastorno Depresivo/etiología , Trastorno Depresivo/terapia , Glioma/psicología , Glioma/cirugía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Encefálicas/mortalidad , Trastorno Depresivo/epidemiología , Femenino , Glioma/mortalidad , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Prevalencia , Tasa de Supervivencia , Resultado del Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA