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1.
Oncologist ; 24(4): 521-528, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30266892

RESUMO

BACKGROUND: We assessed the efficacy and safety of bevacizumab (BEV) through multiple lines in patients with recurrent glioblastoma who had progressed after first-line treatment with radiotherapy, temozolomide, and BEV. PATIENTS AND METHODS: TAMIGA (NCT01860638) was a phase II, randomized, double-blind, placebo-controlled, multicenter trial in adult patients with glioblastoma. Following surgery, patients with newly diagnosed glioblastoma received first-line treatment consisting of radiotherapy plus temozolomide and BEV, followed by six cycles of temozolomide and BEV, then BEV monotherapy until disease progression (PD1). Randomization occurred at PD1 (second line), and patients received lomustine (CCNU) plus BEV (CCNU + BEV) or CCNU plus placebo (CCNU + placebo) until further disease progression (PD2). At PD2 (third line), patients continued BEV or placebo with chemotherapy (investigator's choice). The primary endpoint was survival from randomization. Secondary endpoints were progression-free survival in the second and third lines (PFS2 and PFS3) and safety. RESULTS: Of the 296 patients enrolled, 123 were randomized at PD1 (CCNU + BEV, n = 61; CCNU + placebo, n = 62). The study was terminated prematurely because of the high drop-out rate during first-line treatment, implying underpowered inferential testing. The proportion of patients receiving corticosteroids at randomization was similar (BEV 33%, placebo 31%). For the CCNU + BEV and CCNU + placebo groups, respectively, median survival from randomization was 6.4 versus 5.5 months (stratified hazard ratio [HR], 1.04; 95% confidence interval [CI], 0.69-1.59), median PFS2 was 2.3 versus 1.8 months (stratified HR, 0.70; 95% CI, 0.48-1.00), median PFS3 was 2.0 versus 2.2 months (stratified HR, 0.70; 95% CI, 0.37-1.33), and median time from randomization to a deterioration in health-related quality of life was 1.4 versus 1.3 months (stratified HR, 0.76; 95% CI, 0.52-1.12). The incidence of treatment-related grade 3 to 4 adverse events was 19% (CCNU + BEV) versus 15% (CCNU + placebo). CONCLUSION: There was no survival benefit and no detriment observed with continuing BEV through multiple lines in patients with recurrent glioblastoma. IMPLICATIONS FOR PRACTICE: Previous research suggested that there may be value in continuing bevacizumab (BEV) beyond progression through multiple lines of therapy. No survival benefit was observed with the use of BEV through multiple lines in patients with glioblastoma who had progressed after first-line treatment (radiotherapy + temozolomide + BEV). No new safety concerns arose from the use of BEV through multiple lines of therapy.


Assuntos
Antineoplásicos Imunológicos/uso terapêutico , Bevacizumab/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Glioblastoma/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Adulto , Idoso , Neoplasias Encefálicas/patologia , Método Duplo-Cego , Feminino , Seguimentos , Glioblastoma/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Prognóstico , Taxa de Sobrevida
2.
Oncologist ; 23(5): 524-e44, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29472310

RESUMO

LESSONS LEARNED: Results suggest that the combination of bevacizumab plus temozolomide is active in terms of response rate, survival, performance, quality of life, and cognition in elderly patients with glioblastoma multiforme with poor performance status.Whether this combination is superior to temozolomide alone remains to be demonstrated by a randomized study. BACKGROUND: The optimal treatment of glioblastoma multiforme (GBM) in patients aged ≥70 years with a Karnofsky performance status (KPS) <70 is not established. This clinical trial evaluated the efficacy and safety of upfront temozolomide (TMZ) and bevacizumab (Bev) in patients aged ≥70 years and a KPS <70. MATERIALS AND METHODS: Patients aged ≥70 years with a KPS <70 and biopsy-proven GBM were eligible for this multicenter, prospective, nonrandomized, phase II trial of older patients with impaired performance status. Treatment consisted of TMZ administered at 130-150 mg/m2 per day for 5 days every 4 weeks plus Bev administered at 10 mg/kg every 2 weeks. RESULTS: The trial included 66 patients (median age of 76 years; median KPS of 60). The median overall survival (OS) was 23.9 weeks (95% confidence interval [CI], 19-27.6), and the median progression-free survival (PFS) was 15.3 weeks (95% CI, 12.9-19.3). Twenty-two (33%) patients became transiently capable of self-care (i.e., KPS >70). Cognition and quality of life significantly improved over time during treatment. Grade ≥3 hematological adverse events occurred in 13 (20%) patients, high blood pressure in 16 (24%), venous thromboembolism in 3 (4.5%), cerebral hemorrhage in 2 (3%), and intestinal perforation in 2 (3%). CONCLUSION: This study suggests that TMZ + Bev treatment is active in elderly patients with GBM with low KPS and has an acceptable tolerance level.


Assuntos
Bevacizumab/uso terapêutico , Glioblastoma/tratamento farmacológico , Temozolomida/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Bevacizumab/farmacologia , Feminino , Humanos , Masculino , Temozolomida/farmacologia
3.
J Neurosurg ; 128(1): 3-13, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-28298039

RESUMO

OBJECTIVE The goal of this study was to provide insight into the influence of gliomas on gestational outcomes, the impact of pregnancy on gliomas, and the identification of patients at risk. METHODS In this multiinstitutional retrospective study, the authors identified 52 pregnancies in 50 women diagnosed with a glioma. RESULTS For gliomas known prior to pregnancy (n = 24), we found the following: 1) An increase in the quantified imaging growth rates occurred during pregnancy in 87% of cases. 2) Clinical deterioration occurred in 38% of cases, with seizures alone resolving after delivery in 57.2% of cases. 3) Oncological treatments were immediately performed after delivery in 25% of cases. For gliomas diagnosed during pregnancy (n = 28), we demonstrated the following: 1) The tumor was discovered during the second and third trimesters in 29% and 54% of cases, respectively, with seizures being the presenting symptom in 68% of cases. 2) The quantified imaging growth rates did not significantly decrease after delivery and before oncological treatment. 3) Clinical deterioration resolved after delivery in 21.4% of cases. 4) Oncological treatments were immediately performed after delivery in 70% of cases. Gliomas with a high grade of malignancy, negative immunoexpression of alpha-internexin, or positive immunoexpression for p53 were more likely to be associated with tumor progression during pregnancy. Deliveries were all uneventful (cesarean section in 54.5% of cases and vaginal delivery in 45.5%), and the infants were developmentally normal. CONCLUSIONS When a woman harboring a glioma envisions a pregnancy, or when a glioma is discovered in a pregnant patient, the authors suggest informing her and her partner that pregnancy may impact the evolution of the glioma clinically and radiologically. They strongly advise a multidisciplinary approach to management. ■ CLASSIFICATION OF EVIDENCE Type of question: association; study design: case series; evidence: Class IV.


Assuntos
Neoplasias Encefálicas/epidemiologia , Glioma/epidemiologia , Complicações Neoplásicas na Gravidez/epidemiologia , Adulto , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/terapia , Progressão da Doença , Feminino , Seguimentos , Glioma/diagnóstico , Glioma/terapia , Humanos , Gravidez , Complicações Neoplásicas na Gravidez/diagnóstico , Complicações Neoplásicas na Gravidez/terapia , Resultado da Gravidez , Estudos Retrospectivos , Análise de Sobrevida , Adulto Jovem
4.
Neurology ; 85(15): 1325-31, 2015 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-26385879

RESUMO

OBJECTIVES: We aimed to study the potential clinical relevance of 9p allelic loss, with or without copy number variation, in 1p/19q codeleted anaplastic oligodendroglial tumors (AOTs). METHODS: This study enrolled 216 patients with 1p/19q codeleted AOT. The prognostic value of 9p allelic loss was investigated using a French nation-wide prospective registry, POLA (prise en charge des tumeurs oligodendrogliales anaplasiques) and high-density single nucleotide polymorphism arrays. We validated our results using the Repository of Molecular Brain Neoplasia Data (REMBRANDT) dataset. RESULTS: The minimal common region of allelic loss in chromosome arm 9p was 9p21.3. Allelic loss of 9p21.3, detected in 41.7% of tumors, was associated with shorter progression-free and overall survival rates in univariate (p = 0.008 and p < 0.001, respectively) and multivariate analyses (p = 0.009 and p = 0.009, respectively). This finding was validated in the REMBRANDT dataset in univariate and multivariate analysis (p = 0.01 and p = 0.01, respectively). CONCLUSION: Our study highlights a novel potential prognostic biomarker in 1p/19q codeleted AOT. Further prospective studies are warranted to investigate our finding.


Assuntos
Neoplasias Encefálicas/genética , Cromossomos Humanos Par 1/genética , Cromossomos Humanos Par 9/genética , Variações do Número de Cópias de DNA/genética , Glioma/diagnóstico , Glioma/epidemiologia , Perda de Heterozigosidade/genética , Adulto , Idoso , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/patologia , Deleção Cromossômica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos
5.
Cancers (Basel) ; 5(4): 1199-211, 2013 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-24202441

RESUMO

Glioblastomas are considered to be one of the most radio resistant tumors. Despite new therapies, the prognosis of this disease remains dismal. Also, the mechanisms of radiation resistance in mammalian cells are more complex than once believed. Experimental studies have indicated that some human cell lines are sensitive to low radiation doses of <1 Gy. This phenomenon has been termed low-dose hyper-radio-sensitivity (HRS), and is more apparent in radio resistant cell lines, such as glioblastoma cells. Sensitivity may result from the inability of low dose radiation to efficiently induce repair mechanisms, whereas higher doses cause enough damage to trigger repair responses for radio resistance. In vitro studies have demonstrated this phenomenon using various human malignant glioma cell lines: (1) daily repeated irradiation of cells with low doses compared to irradiation using a single biologically equivalent dose resulted in significantly higher cell killing; (2) experiments conducted on glioma xenografts demonstrated that repeated irradiation with low doses was more effective for inhibiting tumor growth than a single dose. In order to confirm and validate these promising studies on HRS, a few phase II trials were developed. For translating the experimental observations into the clinic, ultra fractionation protocols (with three daily doses) were tested in glioblastoma patients. Tolerance and toxicity were the primary endpoints, with overall survival as a secondary endpoint. These protocols were initiated before concomitant radio chemotherapy became the standard of care. For these trials, patients with an unfavorable clinical prognostic factor of newly unresectable GBM were included. When comparing the results of these trials with international literature using multivariate analysis for both progression free survival and overall survival, ultra fractionated irradiation showed superiority over radiotherapy alone. In addition, it was found to be equivalent to treatment using radiotherapy and temozolomide. Therefore, ultra fractionated protocols may prolong survival of glioblastoma patients. In this review, we describe the main experimental data regarding low-dose hypersensitivity as well as the findings of clinical trials that have investigated this new radiotherapy regimen.

6.
Anticancer Res ; 33(8): 3467-74, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23898121

RESUMO

BACKGROUND: Radiotherapy with concomitant and adjuvant temozolomide (six cycles) is the standard treatment after surgery in glioblastoma patients. Few studies have assessed the impact of additional cycles of temozolomide on survival. PATIENTS AND METHODS: We conducted a bi-centric retrospective study comparing survival and toxicity according to the number of cycles of adjuvant temozolomide. RESULTS: Fifty-eight patients were included. All patients received radiotherapy with concomitant temozolomide. Thirty-eight patients received six cycles, while 20 received nine or more (median=14) cycles. The risk of recurrence was significantly higher in the group receiving six cycles compared to the other group. Prolonged treatment improved progression-free survival (p=0.03) and overall survival (p=0.01) in multivariate analysis without a significant increase in toxicity. CONCLUSION: Prolonged administration of temozolomide seems to improve progression-free and overall survival, without increased toxicity. Prospective studies in larger populations are needed to better-define the population to whom it can be proposed and its optimal duration.


Assuntos
Antineoplásicos Alquilantes/administração & dosagem , Antineoplásicos Alquilantes/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Dacarbazina/análogos & derivados , Glioblastoma/tratamento farmacológico , Adolescente , Corticosteroides/uso terapêutico , Adulto , Idoso , Antineoplásicos Alquilantes/efeitos adversos , Quimioterapia Adjuvante , Dacarbazina/administração & dosagem , Dacarbazina/efeitos adversos , Dacarbazina/uso terapêutico , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva , Temozolomida , Resultado do Tratamento , Adulto Jovem
7.
J Neurooncol ; 113(2): 267-75, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23479036

RESUMO

The involvement of eloquent brain areas may preclude the total/subtotal surgical resection of diffuse low-grade gliomas (DLGGs). The feasibility and functional tolerance of neoadjuvant chemotherapy have been demonstrated in such cases. The present study assesses the clinical and radiological impact of neoadjuvant chemotherapy on the natural course of DLGG. Seventeen patients without feasible surgical resection (infiltration of functional areas and/or large contralateral extension) were retrospectively selected. Temozolomide based neoadjuvant chemotherapy was initiated, inducing a tumor volume decrease and allowing a functional based maximal surgical resection. The median follow-up since initial radiological diagnosis was 5.9 years (range, 1.4-11). The median time to malignant transformation was 5.9 years. Six patients (35 %) had 1p19q codeletion, 12 patients (70 %) with IDH mutation and MGMT promoter methylation, and eight patients (47 %) had p53 overexpression. Chemotherapy reduced tumor volume (median -35.6 %, range -61.6 to -5.1 %) in contralateral hemisphere through the corpus callosum in seven cases (41 %) and in ipsi-lesional functional areas in ten cases (59 %). Chemotherapy significantly decreased the imaging tumor growth (measured by the velocity of diametric expansion VDE) with a median of -3.2 mm/year (range, -29.8 to -0.9 mm/year) (p < 0.001). A tumor volume decrease of more than 20 % was correlated with a lower postoperative residual tumor (median 2 cc, p = 0.04), a greater extent of resection (93.1 vs. 89.5 %), a higher probability of total/subtotal removal. Neoadjuvant chemotherapy with Temozolomide could optimize the surgical resection of DLGGs and could impact their natural history. Further large prospective studies with long-term follow-up are needed.


Assuntos
Antineoplásicos Alquilantes/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Dacarbazina/análogos & derivados , Glioma/tratamento farmacológico , Terapia Neoadjuvante , Procedimentos Neurocirúrgicos , Adolescente , Adulto , Idoso , Biomarcadores Tumorais/análise , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/cirurgia , Terapia Combinada , Dacarbazina/uso terapêutico , Feminino , Seguimentos , Glioma/patologia , Glioma/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Gradação de Tumores , Prognóstico , Estudos Prospectivos , Estudos Retrospectivos , Taxa de Sobrevida , Temozolomida , Carga Tumoral , Organização Mundial da Saúde , Adulto Jovem
8.
Case Rep Oncol ; 5(3): 530-6, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23139667

RESUMO

Unresectable glioblastomas with severe neurological impairment at diagnosis have a poor prognosis. The conventional approach using a temozolomide-based chemoradiotherapy has limited efficiency on patients in the RTOG RPA V-VI classes. The activity of the antiangiogenic monoclonal antibody bevacizumab is well defined in recurrent glioblastoma, despite the fact that its impact on survival is not yet established. We wondered if neoadjuvant bevacizumab, used as upfront treatment in combination with a cytotoxic agent, was tolerable and active on neurological signs in patients with severe alteration of the neurological status due to the tumor being located in functional areas. Eight patients received intravenous bevacizumab, 10 mg/kg every 2 weeks, and either oral temozolomide (150-200 mg/m(2)/day for 5 days every 4 weeks) or intravenous fotemustine (80 mg/m(2) every 2 weeks). After an average of 5 cycles of bevacizumab, a clinical improvement of neurological functions was recorded in 8/8 patients who could then receive radiotherapy at a conventional dose (60 Gy in 30 fractions) with continuation of bevacizumab and the cytotoxic agent. Four out of the 8 patients benefited from a durable stabilization and experienced an unusually long survival in such a bad situation at diagnosis. In conclusion, neoadjuvant bevacizumab with chemotherapy appears to be feasible and efficient in a category of patients from the RTOG RPA V-VI classes, by allowing the completion of full-dose radiotherapy. A clinical trial is planned to confirm these retrospective observations.

9.
PLoS One ; 7(10): e45950, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23071531

RESUMO

Anaplastic oligodendrogliomas (AOD) are rare glial tumors in adults with relative homogeneous clinical, radiological and histological features at the time of diagnosis but dramatically various clinical courses. Studies have identified several molecular abnormalities with clinical or biological relevance to AOD (e.g. t(1;19)(q10;p10), IDH1, IDH2, CIC and FUBP1 mutations).To better characterize the clinical and biological behavior of this tumor type, the creation of a national multicentric network, named "Prise en charge des OLigodendrogliomes Anaplasiques (POLA)," has been supported by the Institut National du Cancer (InCA). Newly diagnosed and centrally validated AOD patients and their related biological material (tumor and blood samples) were prospectively included in the POLA clinical database and tissue bank, respectively.At the molecular level, we have conducted a high-resolution single nucleotide polymorphism array analysis, which included 83 patients. Despite a careful central pathological review, AOD have been found to exhibit heterogeneous genomic features. A total of 82% of the tumors exhibited a 1p/19q-co-deletion, while 18% harbor a distinct chromosome pattern. Novel focal abnormalities, including homozygously deleted, amplified and disrupted regions, have been identified. Recurring copy neutral losses of heterozygosity (CNLOH) inducing the modulation of gene expression have also been discovered. CNLOH in the CDKN2A locus was associated with protein silencing in 1/3 of the cases. In addition, FUBP1 homozygous deletion was detected in one case suggesting a putative tumor suppressor role of FUBP1 in AOD.Our study showed that the genomic and pathological analyses of AOD are synergistic in detecting relevant clinical and biological subgroups of AOD.


Assuntos
Neoplasias Encefálicas/genética , Deleção de Genes , Perda de Heterozigosidade , Oligodendroglioma/genética , Adulto , Idoso , Feminino , Genes p16/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Mutação , Polimorfismo de Nucleotídeo Único
11.
J Neurooncol ; 106(2): 353-66, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21785913

RESUMO

Diffuse WHO grade II (GIIG) may be unresectable when involving critical structures. To assess the feasibility and functional tolerance (cognition and quality of life) of an original therapeutic strategy combining neoadjuvant chemotherapy followed by surgical resection for initially inoperable GIIG. Ten patients underwent Temozolomide for unresectable GIIG, as initial treatment or at recurrence after previous partial resection, due to invasion of eloquent areas or bi-hemispheric diffusion preventing a total/subtotal removal. Functional outcome after both treatments was assessed, with evaluation of seven cognitive domains. Chemotherapy induced tumor shrinkage (median volume decrease 38.9%) in ipsilateral functional areas in six patients and in the contralateral hemisphere in four. Only four patients had a 1p19q codeletion. The tumor shrinkage made possible the resection (mean extent of resection 93.3%, 9 total or subtotal removals) of initially inoperable tumors. Postoperatively, three patients had no deficits, while verbal episodic memory and executive functions were slightly impaired in seven patients. However, global quality of life was roughly preserved on the EORTC QLQ C30 + BN 20 (median score: 66.7%). Role functioning score was relatively reduced (median score: 66.7%) whereas KPS was preserved (median score: 90, range 80-100). Seven patients became seizure-free while three improved. This combined treatment is feasible, efficient (surgery made possible by neoadjuvant chemotherapy) and well-tolerated (preservation of quality of life, no serious cognitive disturbances). Cognitive deficits seem mostly related to tumor location. Because KPS is not reliable enough, a detailed neuropsychological assessment should be systematically performed in GIIG.


Assuntos
Neoplasias Encefálicas/tratamento farmacológico , Neoplasias Encefálicas/cirurgia , Cognição , Glioma/tratamento farmacológico , Glioma/cirurgia , Terapia Neoadjuvante , Qualidade de Vida , Adulto , Antineoplásicos/uso terapêutico , Neoplasias Encefálicas/patologia , Quimioterapia Adjuvante/efeitos adversos , Quimioterapia Adjuvante/métodos , Cognição/efeitos dos fármacos , Dacarbazina/análogos & derivados , Dacarbazina/uso terapêutico , Feminino , Glioma/patologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante/efeitos adversos , Terapia Neoadjuvante/métodos , Gradação de Tumores , Testes Neuropsicológicos , Procedimentos Neurocirúrgicos , Estudos Retrospectivos , Temozolomida , Resultado do Tratamento , Adulto Jovem
12.
Cancers (Basel) ; 4(1): 77-87, 2012 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-24213227

RESUMO

Malignant gliomas account for approximately 60% of all primary brain tumors in adults. The prognosis for patients with malignant glioma has not changed significantly in recent years. Despite debulking surgery, radiotherapy and cytotoxic chemotherapy, the median survival time is nine to 12 months, and very few, if any, patients are cured from this illness. Fotemustine is an alkylating agent characterized by the grafting of a phosphonoalanine group onto the nitrosourea radical with consequent high lipophilicity and improved diffusion through the cell membrane and the blood-brain barrier. Fotemustine has been registered for use in two indications: disseminated malignant melanoma, including cerebral metastases, and primary brain tumors. Fotemustine is currently used in Europe, particularly in France and Italy, as a salvage therapy for recurrent malignant gliomas. Myelosuppression, leucopenia and thrombocytopenia are the most frequent side effects of treatment with fotemustine. The objective response to this treatment is between 26% and 70%, and the reported median survival time is 10 months. New drug combinations containing fotemustine and angiogenesis inhibitors, such as bevacizumab, are currently under development. In this review, we describe all the combinations of fotemustine currently used in clinical practice for recurrent malignant gliomas.

13.
J Clin Oncol ; 29(22): 3050-5, 2011 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-21709196

RESUMO

PURPOSE: The management of glioblastoma multiforme (GBM) in elderly patients with poor performance status is not well established. A trial evaluating the efficacy and safety of temozolomide alone in this population was undertaken. PATIENTS AND METHODS: Patients age 70 years or older with newly diagnosed GBM and postoperative Karnofsky performance score (KPS) less than 70 were eligible for this nonrandomized phase II trial. Treatment consisted of 150 to 200 mg/m(2)/d temozolomide for 5 days every 4 weeks until disease progression. Radiotherapy was not administered. The primary end point was overall survival (OS); secondary end points included progression-free survival (PFS), safety, quality of life, and cognition. RESULTS: Seventy patients (median age, 77 years; median KPS, 60) were enrolled between July 2007 and February 2009. Grade 3 to 4 neutropenia and thrombocytopenia occurred in 13% and 14% of patients, respectively. Median PFS was 16 weeks (95% CI, 10 to 20 weeks), and median OS was 25 weeks (95% CI, 19 to 28 weeks), comparing favorably with a 12- to 16-week OS expected from a purely supportive approach. Twenty-three patients (33%) improved their KPS by 10 or more points, and 18 (26%) became capable of self-care (KPS ≥ 70). Overall quality of life and cognition improved over time before disease progression. In the 31 tumors evaluated for O(6)-methylguanine-DNA methyltransferase (MGMT) promoter methylation, a methylated status indicated longer PFS (26 v 11 weeks; P = .03) and OS (31 v 19 weeks; P = .03). CONCLUSION: Temozolomide has an acceptable tolerance in elderly patients with GBM and KPS less than 70. It is associated with improvement of functional status in 33% of patients and appears to increase survival compared with supportive care alone, especially in patients with methylated MGMT promoter.


Assuntos
Antineoplásicos Alquilantes/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Dacarbazina/análogos & derivados , Glioblastoma/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos Alquilantes/administração & dosagem , Antineoplásicos Alquilantes/efeitos adversos , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/metabolismo , Neoplasias Encefálicas/mortalidade , Neoplasias Encefálicas/cirurgia , Cognição , Metilação de DNA/efeitos dos fármacos , Metilases de Modificação do DNA/metabolismo , Enzimas Reparadoras do DNA/metabolismo , Dacarbazina/administração & dosagem , Dacarbazina/efeitos adversos , Dacarbazina/uso terapêutico , Intervalo Livre de Doença , Esquema de Medicação , Feminino , França/epidemiologia , Glioblastoma/diagnóstico , Glioblastoma/metabolismo , Glioblastoma/mortalidade , Glioblastoma/cirurgia , Humanos , Estimativa de Kaplan-Meier , Avaliação de Estado de Karnofsky , Masculino , Reação em Cadeia da Polimerase , Estudos Prospectivos , Qualidade de Vida , Inquéritos e Questionários , Temozolomida , Resultado do Tratamento , Proteínas Supressoras de Tumor/metabolismo
14.
Cancers (Basel) ; 3(1): 461-77, 2011 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-24212625

RESUMO

Malignant gliomas account for approximately 60% of all primary brain tumors in adults. Prognosis for these patients has not significantly changed in recent years-despite debulking surgery, radiotherapy and cytotoxic chemotherapy-with a median survival of 9-12 months. Virtually no patients are cured of their illness. Malignant gliomas are usually locally invasive tumors, though extra-neural metastases can sometimes occur late in the course of the disease (median of two years). They generally appear after craniotomy although spontaneous metastases have also been reported. The incidence of these metastases from primary intra-cranial malignant gliomas is low; it is estimated at less than 2% of all cases. Extra-neural metastases from gliomas frequently occur late in the course of the disease (median of two years), and generally appear after craniotomy, but spontaneous metastases have also been reported. Malignant glioma metastases usually involve the regional lymph nodes, lungs and pleural cavity, and occasionally the bone and liver. In this review, we present three cases of extra-neural metastasis of malignant gliomas from our department, summarize the main reported cases in literature, and try to understand the mechanisms underlying these systemic metastases.

15.
Lancet Oncol ; 11(9): 871-9, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20598636

RESUMO

Neoplastic meningitis consists of diffuse involvement of the leptomeninges by infiltrating cancer cells, and can be caused by systemic or primary CNS tumours, such as solid cancers or lymphoproliferative malignant disease. Neoplastic meningitis is characterised by multifocal neurological signs and symptoms. Thus, careful neurological examination is needed for diagnosis of secondary diffuse involvement. Survival of patients with neoplastic meningitis is short (3-4 months), although some patients have long-lasting remission. Because most patients with neoplastic meningitis have diffuse systemic disease, treatment is typically palliative. However, more aggressive treatments are available to low-risk patients, which could increase survival. Therefore, identification of low-risk patients is important. Intrathecal chemotherapy is currently the main treatment for patients with neoplastic meningitis, but optimum anticancer chemotherapy is being studied.


Assuntos
Antineoplásicos/administração & dosagem , Carcinomatose Meníngea/tratamento farmacológico , Carcinomatose Meníngea/secundário , Metástase Neoplásica/tratamento farmacológico , Humanos , Injeções Espinhais , Meningite/etiologia , Neoplasias/complicações , Neoplasias/tratamento farmacológico , Neoplasias/patologia
16.
Neuro Oncol ; 12(6): 595-602, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20511183

RESUMO

Ultrafractionation of radiation therapy is a novel regimen consisting of irradiating tumors several times daily, delivering low doses (<0.75 Gy) at which hyperradiosensitivity occurs. We recently demonstrated the high efficiency of ultrafractionated radiotherapy (RT) on glioma xenografts and report here on a phase II clinical trial to determine the safety, tolerability, and efficacy of an ultrafractionation regimen in patients with newly and inoperable glioblastoma (GBM). Thirty-one patients with histologically proven, newly diagnosed, and unresectable supratentorial GBM (WHO grade IV) were enrolled. Three daily doses of 0.75 Gy were delivered at least 4 hours apart, 5 days per week over 6-7 consecutive weeks (90 fractions for a total of 67.5 Gy). Conformal irradiation included the tumor bulk with a margin of 2.5 cm. The primary end points were safety, toxicity, and tolerability, and the secondary end points were overall survival (OS) and progression-free survival (PFS). Multivariate analysis was used to compare the OS and PFS with the EORTC-NCIC trial 26981-22981/CE.3 of RT alone vs radiation therapy and temozolomide (TMZ). The ultrafractionation radiation regimen was safe and well tolerated. No acute Grade III and/or IV CNS toxicity was observed. Median PFS and OS from initial diagnosis were 5.1 and 9.5 months, respectively. When comparing with the EORTC/NCIC trial, in both PFS and OS multivariate analysis, ultrafractionation showed superiority over RT alone, but not over RT and TMZ. The ultrafractionation regimen is safe and may prolong the survival of patients with GBM. Further investigation is warranted and a trial associating ultra-fractionation and TMZ is ongoing.


Assuntos
Glioblastoma/mortalidade , Glioblastoma/radioterapia , Adulto , Idoso , Relação Dose-Resposta à Radiação , Feminino , Seguimentos , Glioblastoma/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Taxa de Sobrevida/tendências
17.
Cancer Chemother Pharmacol ; 64(1): 171-5, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19352662

RESUMO

PURPOSE: Fotemustine is a nitrosourea compound used for the treatment of malignant gliomas, especially in France. Recently, an EORTC-NCIC study has shown that a concomitant combination of radiotherapy plus temozolomide (an oral cytotoxic drug) improved survival in glioblastoma patients. We set out to test a concurrent combination of radiotherapy and fotemustine for newly malignant gliomas. METHODS: A prospective single-center phase II study opened for accrual in September 2004. Patients over 18 years of age able to give informed consent and with histologically proven, newly diagnosed supratentorial malignant gliomas were eligible. All patients were treated by a standard cranial irradiation (conformal irradiation, tumor bulk plus a margin of 2.5 cm) and concomitant daily administration of 10 mg/m(2) of fotemustine (5 days per week, 6 weeks, 1 h 30 min before radiation therapy). Adjuvant chemotherapy, fotemustine, was administered at tumor progression as standard and classic regimen. RESULTS: Twenty-two patients were enrolled, 16 men and 6 women, median age 56 years (range 32-74), median Karnofsky performance status 70 (range 60-90). Histology included 16 glioblastomas, 3 anaplastic astrocytomas, 2 anaplastic oligodendrogliomas and 1 mixed glioma. Eight patients underwent surgery (three total resections). Fourteen patients had a stereotactic biopsy. The concurrent radiotherapy-fotemustine combination was well tolerated: toxicity was mild and three hematologic toxicities grade 3-4 were observed. Median survival from the initial diagnosis was 9.9 months, two patients are currently alive. Median survival was 11 months for surgery and 9 months for stereotactic biopsy. CONCLUSIONS: Concomitant radiotherapy-fotemustine combination is safe and well tolerated. Overall survival of over 10 months for the whole population compares favorably with other reports.


Assuntos
Antineoplásicos/uso terapêutico , Glioma/tratamento farmacológico , Compostos de Nitrosoureia/uso terapêutico , Compostos Organofosforados/uso terapêutico , Neoplasias Supratentoriais/tratamento farmacológico , Adulto , Idoso , Antineoplásicos/efeitos adversos , Quimioterapia Adjuvante/métodos , Terapia Combinada , Progressão da Doença , Feminino , Glioma/radioterapia , Doenças Hematológicas/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Compostos de Nitrosoureia/efeitos adversos , Compostos Organofosforados/efeitos adversos , Estudos Prospectivos , Técnicas Estereotáxicas , Neoplasias Supratentoriais/radioterapia , Taxa de Sobrevida
20.
J Nucl Med ; 45(3): 409-13, 2004 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15001680

RESUMO

UNLABELLED: This prospective clinical study used (99m)Tc-sestamibi (MIBI) brain SPECT to assess residual tumor volume and determine whether it would be prognostic of survival at the end of cranial irradiation in patients with malignant glioma. METHODS: Fifty-seven patients with supratentorial malignant glioma were included in this clinical trial. Tomoscintigraphy was performed 4 h after an intravenous injection of MIBI (1,110 MBq). The images were obtained from a dual-head gamma-camera using fanbeam collimators. Transverse, coronal, and sagittal views were reconstructed. Metabolic tumor volume (MTV), using an ellipsoid model, was calculated from the 3 slices. The first posttherapeutic neuroradiologic evaluation was performed at the end of each patient's radiation therapy. RESULTS: (99m)Tc-MIBI brain SPECT performed at the end of cranial irradiation provided data that allowed the identification of residual tumor and could be used to accurately predict survival of malignant glioma patients, taking into account the established prognostic factors. Patients with an MTV < 32 cm(3) had a median survival of 358 d, as opposed to 238 d in patients with an MTV >or= 32 cm(3) (P = 0.05). Moreover, half of CT scans performed at the same time were considered to show doubtful or only suggestive findings. No diagnosis of tumor progression or inflammatory changes was possible. CONCLUSION: (99m)Tc-MIBI brain SPECT may help in establishing the prognosis of glioma patients at the end of radiation therapy. Consequently, the management of patients can be adapted. These new data should be considered in the design of future clinical studies of malignant glioma patients as a way to quickly assess the efficiency of therapies.


Assuntos
Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/mortalidade , Encéfalo/diagnóstico por imagem , Glioma/diagnóstico por imagem , Glioma/mortalidade , Tecnécio Tc 99m Sestamibi , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Neoplasias Encefálicas/diagnóstico , Neoplasias Encefálicas/radioterapia , Intervalo Livre de Doença , Feminino , Glioma/diagnóstico , Glioma/radioterapia , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Compostos Radiofarmacêuticos , Reprodutibilidade dos Testes , Medição de Risco/métodos , Sensibilidade e Especificidade , Taxa de Sobrevida , Resultado do Tratamento , Estados Unidos/epidemiologia
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