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1.
Lancet ; 371(9617): 1007-16, 2008 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-18358928

RESUMO

BACKGROUND: Surgical resection alone is regarded as the standard of care for patients with liver metastases from colorectal cancer, but relapse is common. We assessed the combination of perioperative chemotherapy and surgery compared with surgery alone for patients with initially resectable liver metastases from colorectal cancer. METHODS: This parallel-group study reports the trial's final data for progression-free survival for a protocol unspecified interim time-point, while overall survival is still being monitored. 364 patients with histologically proven colorectal cancer and up to four liver metastases were randomly assigned to either six cycles of FOLFOX4 before and six cycles after surgery or to surgery alone (182 in perioperative chemotherapy group vs 182 in surgery group). Patients were centrally randomised by minimisation, adjusting for centre and risk score. The primary objective was to detect a hazard ratio (HR) of 0.71 or less for progression-free survival. Primary analysis was by intention to treat. Analyses were repeated for all eligible (171 vs 171) and resected patients (151 vs 152). This trial is registered with ClinicalTrials.gov, number NCT00006479. FINDINGS: In the perioperative chemotherapy group, 151 (83%) patients were resected after a median of six (range 1-6) preoperative cycles and 115 (63%) patients received a median six (1-8) postoperative cycles. 152 (84%) patients were resected in the surgery group. The absolute increase in rate of progression-free survival at 3 years was 7.3% (from 28.1% [95.66% CI 21.3-35.5] to 35.4% [28.1-42.7]; HR 0.79 [0.62-1.02]; p=0.058) in randomised patients; 8.1% (from 28.1% [21.2-36.6] to 36.2% [28.7-43.8]; HR 0.77 [0.60-1.00]; p=0.041) in eligible patients; and 9.2% (from 33.2% [25.3-41.2] to 42.4% [34.0-50.5]; HR 0.73 [0.55-0.97]; p=0.025) in patients undergoing resection. 139 patients died (64 in perioperative chemotherapy group vs 75 in surgery group). Reversible postoperative complications occurred more often after chemotherapy than after surgery (40/159 [25%] vs 27/170 [16%]; p=0.04). After surgery we recorded two deaths in the surgery alone group and one in the perioperative chemotherapy group. INTERPRETATION: Perioperative chemotherapy with FOLFOX4 is compatible with major liver surgery and reduces the risk of events of progression-free survival in eligible and resected patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/patologia , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/cirurgia , Assistência Perioperatória/métodos , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Terapia Combinada , Feminino , Fluoruracila/administração & dosagem , Humanos , Neoplasias Hepáticas/secundário , Masculino , Pessoa de Meia-Idade , Compostos Organoplatínicos/administração & dosagem , Oxaliplatina
2.
J Clin Oncol ; 23(36): 9250-6, 2005 Dec 20.
Artigo em Inglês | MEDLINE | ID: mdl-16361622

RESUMO

PURPOSE: To define the efficacy and toxicity of docetaxel plus gemcitabine or docetaxel plus cisplatin for advanced pancreatic carcinoma. PATIENTS AND METHODS: Chemotherapy-naive patients with measurable disease and WHO performance status less than 2 were randomly assigned to receive 21-day cycles of gemcitabine 800 mg/m2 on days 1 and 8 plus docetaxel 85 mg/m2 on day 8 (arm A) or docetaxel 75 mg/m2 on day 1 plus cisplatin 75 mg/m2 on day 1 (arm B). Primary end points were tumor response and rate of febrile neutropenia grade. RESULTS: Of 96 randomly assigned patients (49 patients in arm A and 47 patients in arm B), 70 patients were analyzed for response (36 in arm A and 34 in arm B) and 89 patients were analyzed for safety (45 in arm A and 44 in arm B). Confirmed responses were observed in 19.4% (95% CI, 8.2% to 36.0%) of patients in arm A and 23.5% (95% CI, 10.7% to 41.2%) in arm B. In arm A, the median progression-free survival (PFS) was 3.9 months (95% CI, 3.0 to 4.7 months), median survival was 7.4 months (95% CI, 5.6 to 11.0 months), and 1-year survival was 30%. In arm B, the median PFS was 2.8 months (95% CI, 2.6 to 4.6 months), median survival was 7.1 months (95% CI, 4.8 to 8.7 months), and 1-year survival was 16%. Febrile neutropenia occurred in 9% and 16% of patients in arms A and B, respectively. CONCLUSION: Both regimens are well tolerated and show activity in advanced pancreatic carcinoma. The safety profile and survival analyses favor docetaxel plus gemcitabine for further evaluation.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma/tratamento farmacológico , Neoplasias Pancreáticas/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma/patologia , Cisplatino/administração & dosagem , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Progressão da Doença , Docetaxel , Feminino , Humanos , Infusões Intravenosas , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/patologia , Análise de Sobrevida , Taxoides/administração & dosagem , Gencitabina
3.
Hist Cienc Saude Manguinhos ; 12(Suppl): 349-64, 2005.
Artigo em Português | MEDLINE | ID: mdl-16680877

RESUMO

During their first visit to Brazil, in 2001, Michel Van Praet, Jean Davallon, and Daniel Jacobi - French researchers in the field of museology - discussed the complex nature of the museum experience. Professor Van Praet underscores the unique character of natural history museums and offers an evaluation of his work as head of the restoration project at Paris's Grande Gallery of Evolution, inaugurated in 1994. Professor Davallon discusses the contribution of semiotics and reception theory in analyzing how an exhibit communicates and how meaning is constructed within it. Dr. Jacobi defines some characteristics of the dissemination of science at museums and points to problems encountered in achieving this end.


Assuntos
Museus , História Natural , Ciência , Tecnologia , Brasil , Educação/história , Educação/tendências , França , História do Século XX , História do Século XXI , Museus/história , História Natural/educação , História Natural/história , História Natural/tendências , Ciência/educação , Ciência/história , Ciência/tendências , Tecnologia/educação , Tecnologia/história , Tecnologia/tendências
4.
J Clin Oncol ; 31(30): 3831-7, 2013 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-24019551

RESUMO

PURPOSE: The GM2 ganglioside is an antigen expressed in the majority of melanomas. The GM2-KLH/QS-21 vaccine induces high immunoglobulin M (IgM) and IgG antibody responses. The EORTC 18961 trial compared the efficacy of GM2-KLH/QS-21 vaccination versus observation. PATIENTS AND METHODS: A total of 1,314 patients with a primary tumor > 1.50 mm in thickness (T3-4N0M0; American Joint Committee on Cancer stage II) were randomly assigned to GM2-KLH/QS-21 vaccination (n = 657) or observation (n = 657). Treatment consisted of subcutaneous injections once per week from week 1 to 4, then every 3 months for the first 2 years and every 6 months during the third year. Primary end point was relapse-free survival (RFS). Secondary end points were distant metastasis-free survival (DMFS) and overall survival (OS). Analyses were by intent to treat. RESULTS: After a median follow-up of 1.8 years, the trial was stopped at the second interim analysis for futility regarding RFS (hazard ratio [HR], 1.00; P = .99) and detrimental outcome regarding OS (HR, 1.66; P = .02). After a median follow-up of 4.2 years, we had recorded 400 relapses, nine deaths without relapse, a total of 236 deaths. At 4 years, the vaccination arm showed a decreased RFS rate of 1.2% (HR, 1.03; 95% CI, 0.84 to 1.25) and OS rate of 2.1% (HR, 1.16; 95% CI, 0.90 to 1.51). Toxicity was acceptable, with 4.6% of patients ending study participation because of toxicity. CONCLUSION: GM2-KLH/QS-21 vaccination does not improve outcome for patients with stage II melanoma.


Assuntos
Vacinas Anticâncer/uso terapêutico , Gangliosídeo G(M2)/uso terapêutico , Hemocianinas/uso terapêutico , Melanoma/patologia , Melanoma/cirurgia , Neoplasias Cutâneas/patologia , Neoplasias Cutâneas/cirurgia , Conduta Expectante , Adjuvantes Imunológicos/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Intervalo Livre de Doença , Feminino , Humanos , Estimativa de Kaplan-Meier , Linfonodos/patologia , Linfonodos/cirurgia , Metástase Linfática , Masculino , Melanoma/mortalidade , Melanoma/prevenção & controle , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Saponinas/uso terapêutico , Neoplasias Cutâneas/mortalidade , Neoplasias Cutâneas/prevenção & controle
5.
J Clin Oncol ; 28(29): 4450-6, 2010 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-20837948

RESUMO

PURPOSE: The role of adjuvant chemoradiotherapy (CRT) in resectable pancreatic cancer is still debated. This randomized phase II intergroup study explores the feasibility and tolerability of a gemcitabine-based CRT regimen after R0 resection of pancreatic head cancer. PATIENTS AND METHODS: Within 8 weeks after surgery, patients were randomly assigned to receive either four cycles of gemcitabine (control arm) or gemcitabine for two cycles followed by weekly gemcitabine with concurrent radiation (50.4 Gy; CRT arm). The primary objective was to exclude a < 60% treatment completion and a > 40% rate of grade 4 hematologic or GI toxicity in the CRT arm with type I and II errors of 10%. Secondary end points were late toxicity, disease-free survival (DFS), and overall survival (OS). RESULTS: Between September 2004 and January 2007, 90 patients were randomly assigned (45:45). Patient characteristics were similar in both arms. Treatment was completed per protocol by 86.7% and 73.3% (80% CI, 63.1% to 81.9%; 95% CI, 58.1% to 85.4%) in the control and CRT arms, respectively, and grade 4 toxicity was 0% and 4.7% (two of 43; 80% CI, 1.2% to 11.9%), respectively. In the CRT arm, three patients experienced grade 3-related late toxicity. Median DFS was 12 months in the CRT arm and 11 months in the control arm. Median OS was 24 months in both arms. First local recurrence was less frequent in the CRT arm (11% v 24%). CONCLUSION: Adjuvant gemcitabine-based CRT is feasible, well-tolerated, and not deleterious; adding this treatment to full-dose adjuvant gemcitabine after resection of pancreatic cancer should be evaluated in a phase III trial.


Assuntos
Desoxicitidina/análogos & derivados , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/radioterapia , Adulto , Idoso , Antimetabólitos Antineoplásicos/efeitos adversos , Antimetabólitos Antineoplásicos/uso terapêutico , Quimioterapia Adjuvante , Terapia Combinada , Desoxicitidina/efeitos adversos , Desoxicitidina/uso terapêutico , Diarreia/induzido quimicamente , Esquema de Medicação , Fadiga/induzido quimicamente , Estudos de Viabilidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Náusea/induzido quimicamente , Neoplasias Pancreáticas/cirurgia , Radioterapia Adjuvante , Resultado do Tratamento , Gencitabina
6.
Eur J Cancer ; 44(15): 2204-11, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18707870

RESUMO

OBJECTIVES: PETACC-1 assessed if raltitrexed is non-inferior to 5-fluorouracil and leucovorin for relapse-free survival (RFS) and overall survival (OS) in adjuvant stage III colon cancer. METHODS: Non-inferiority required both HR for RFS and OS<1.25 at 1-sided alpha=0.05. Patients (1921) were randomised to six cycles of 5-FU/LV (n=969) or eight cycles of raltitrexed (n=952). We report the final results in 993 eligible patients who started and completed the allocated treatment (489 5-FU/LV and n=504 Raltitrexed) of whom respectively 146 and 148 died, respectively. RESULTS: The trial closed prematurely when 17 (1.9%) raltitrexed-related deaths were reported. Haematological and gastrointestinal toxicities were more frequent with 5-FU/LV, liver toxicities with raltitrexed. Raltitrexed was stopped for toxicity in 13.2% and 5-FU/LV in 8.5%. Sixty-day mortality was 9% versus 7%. With 4.1 years median follow-up, the HR for RFS was 1.16 (90% CI 0.99-1.37) and that for OS was 1.01 (90% CI 0.84-1.23). CONCLUSION: The trial failed to demonstrate non-inferiority of raltitrexed. FUNDING: Free drugs and financial support from AstraZeneca.


Assuntos
Antimetabólitos Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias do Colo/tratamento farmacológico , Quinazolinas/uso terapêutico , Tiofenos/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antimetabólitos Antineoplásicos/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Quimioterapia Adjuvante , Neoplasias do Colo/patologia , Neoplasias do Colo/cirurgia , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/efeitos adversos , Humanos , Leucovorina/administração & dosagem , Leucovorina/efeitos adversos , Masculino , Pessoa de Meia-Idade , Quinazolinas/efeitos adversos , Análise de Sobrevida , Tiofenos/efeitos adversos , Resultado do Tratamento , Adulto Jovem
7.
J Clin Oncol ; 25(18): 2580-5, 2007 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-17577037

RESUMO

PURPOSE: This multicentric, randomized, two-stage phase II trial evaluated three simplified weekly infusional regimens of fluorouracil (FU) or FU plus folinic acid (FA) and cisplatin (Cis) with the aim to select a regimen for future phase III trials. PATIENTS AND METHODS: A total of 145 patients with advanced gastric cancer where randomly assigned to weekly FU 3,000 mg/m2/24 hours (HD-FU), FU 2,600 mg/m2/24 hours plus dl-FA 500 mg/m2 or l-FA 250 mg/m2 (HD-FU/FA), or FU 2000 mg/m2/24 hours plus FA plus biweekly Cis 50 mg/m2, each administered for 6 weeks with a 1-week rest. The primary end point was the response rate. RESULTS: Confirmed responses were observed in 6.1% (two of 33) of the eligible patients treated with HD-FU, in 25% (12 of 48, including one complete remission [CR]) with HD-FU/FA, and in 45.7% (21 of 46, including four CRs) with HD-FU/FA/Cis. The HD-FU arm was closed after stage 1 because the required minimum number of responses was not met. The median progression-free survival of all patients in the HD-FU, HD-FU/FA, and HD-FU/FA/Cis arm was 1.9, 4.0, and 6.1 months, respectively. The median overall survival was 7.1, 8.9, and 9.7 months, and the survival rate at 1 year was 24.3%, 30.3%, and 45.3%, respectively. Grade 4 toxicities were rare. The most relevant grade 3/4 toxicities were neutropenia in 1.9%, 5.4%, and 19.6%, and diarrhea in 2.7%, 1.9%, and 3.9% of the cycles in the HD-FU, HD-FU/FA, and HD-/FU/Cis arms, respectively. CONCLUSION: Weekly infusional FU/FA plus biweekly Cis is effective and safe in patients with gastric cancer.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Gástricas/tratamento farmacológico , Idoso , Cisplatino/administração & dosagem , Europa (Continente) , Feminino , Fluoruracila/administração & dosagem , Humanos , Infusões Intravenosas , Leucovorina/administração & dosagem , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Taxa de Sobrevida , Resultado do Tratamento
8.
Hist. ciênc. saúde-Manguinhos ; 12(supl): 349-364, 2005.
Artigo em Português | LILACS | ID: lil-570820

RESUMO

Em sua primeira visita ao Brasil, em 2001, os professores Michel Van Praet, Jean Davallon e Daniel Jacobi, pesquisadores e profissionais do campo museal francês, discutiram a natureza complexa da experiência museal. Michel Van Praet salienta a particularidade dos museus de história natural e avalia o trabalho que realisou à frente do projeto de renovação da Grande Galeria da Evolução do Museu Nacional de História Natural, inaugurada, em 1994, em Paris. Jean Davallon discute a contribuição da semiótica e da teoria da recepção para analisar como a exposição comunica e como se dá a construção de sentido em seu interior. Daniel Jacobi define algumas características da divulgação das ciências nos museus e aponta dificuldades para a sua realização.


During their first visit to Brazil, in 2001, Michel Van Praet, Jean Davallon, and Daniel Jacobi – French researchers in the field of museology – discussed the complex nature of the museum experience. Professor Van Praet underscores the unique character of natural history museums and offers an evaluation of his work as head of the restoration project at Paris's Grande Gallery of Evolution, inaugurated in 1994. Professor Davallon discusses the contribution of semiotics and reception theory in analyzing how an exhibit communicates and how meaning is constructed within it. Dr. Jacobi defines some characteristics of the dissemination of science at museums and points to problems encountered in achieving this end.


Assuntos
História do Século XX , História do Século XXI , Museus , História Natural , Ciência , Tecnologia , Brasil , Educação/história , Educação/tendências , França , Museus/história , História Natural/educação , História Natural/história , História Natural/tendências , Ciência/educação , Ciência/história , Ciência/tendências , Tecnologia/educação , Tecnologia/história , Tecnologia/tendências
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