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1.
World J Surg ; 45(3): 822-830, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33210163

RESUMEN

BACKGROUND: To report the current clinical practice of French physicians for metachronous resectable liver metastasis (LM) occurring after a FOLFOX adjuvant chemotherapy for primary cancer. METHODS: Twenty four clinical situations were proposed to a panel of experts via 4 learned societies. Clinical situations varied according time of recurrence (early between 6 and 12 month or > 12 month), extension of LM (limited ≤ 2 or extended > 2 lesions), presence of a neuropathy or not, and of a RAS or BRAF mutation. RESULTS: A total of 157 physicians participated in this study. A consensus was reached in 17 (71%) clinical situations. For an early limited recurrence, whatever presence of neuropathy, the preferred therapeutic approach (45%) was upfront surgery. For an early extended recurrence, whatever presence of neuropathy, there was a consensus (64%) for a preoperative chemotherapy by FOLFIRI + biologic agent. For a late recurrence without neuropathy, there was a consensus (50%) for a preoperative FOLFOX chemotherapy, whatever the extension of LM. For a late recurrence with neuropathy, upfront surgery was chosen (52%) for limited LM, and preoperative chemotherapy by FOLFIRI + biologic agent (73%) for extended LM. No response was influenced by the RAS mutation status. There was a strong consensus for intensified preoperative chemotherapy in all clinical situations for BRAF-mutated LM. CONCLUSIONS: This national survey provides an overview of the practice patterns in the treatment of LM occurring after adjuvant FOLFOX for primary. It could be a basis to establish expert's recommendations for the clinical practice.


Asunto(s)
Neoplasias Colorrectales , Neoplasias Hepáticas , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Quimioterapia Adyuvante , Neoplasias Colorrectales/tratamiento farmacológico , Fluorouracilo/uso terapéutico , Humanos , Leucovorina/uso terapéutico , Neoplasias Hepáticas/tratamiento farmacológico , Neoplasias Hepáticas/cirugía , Recurrencia Local de Neoplasia , Oxaliplatino/uso terapéutico
2.
Bull Cancer ; 106(11): 959-968, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31623835

RESUMEN

INTRODUCTION: Totally implanted venous access (TIVA) improves the safety and welfare of patients treated with cancer chemotherapy (CCT). We aimed to evaluate patients' perception of TIVA placement, TIVA use, and information on TIVA, and to assess the association between patients' perception and their attitude regarding a potential TIVA re-implantation. METHODS: We conducted a single center cross-sectional survey in a university hospital in Northern France. Patients included were consecutive urologic or digestive cancer inpatients admitted for a CCT cycle via TIVA between April 9th and May 9th 2014. We analyzed patients' satisfaction, experience, and attitude, especially when requiring potential TIVA re-implantation under local anesthesia (LA), using a standardized questionnaire and medical records. We analyzed risk factors for refusing potential TIVA re-implantation under LA using multivariate logistic regression. RESULTS: Eighty-one patients were interviewed (no refusals), including 57 with a TIVA device placed under LA in our university hospital. Among them, 52/57 (91%) reported satisfactory TIVA placement, but respectively 21/57 (37%) and 18/57 (32%) complained of painful or uncomfortable TIVA placement; 51/57 (89%) were satisfied with care provided during CCT cycles. Risk factors for refusing potential re-implantation under LA were: TIVA placement considered painful (P=0.012) or uncomfortable (P=0.038) and dissatisfaction with care provided during CCT cycles (P=0.028). DISCUSSION: We show that despite good overall satisfaction regarding TIVA, some aspects were less positive and warrant improvement actions. It suggests that these actions could not only improve patients' experience of TIVA use but could also facilitate continuation of treatment in the long term.


Asunto(s)
Actitud , Neoplasias del Sistema Digestivo/psicología , Satisfacción del Paciente , Neoplasias Urológicas/psicología , Dispositivos de Acceso Vascular , Adulto , Anciano , Anciano de 80 o más Años , Anestesia Local , Estudios Transversales , Neoplasias del Sistema Digestivo/tratamiento farmacológico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dolor Asociado a Procedimientos Médicos/etiología , Análisis de Regresión , Retratamiento/psicología , Factores de Riesgo , Encuestas y Cuestionarios , Negativa del Paciente al Tratamiento/psicología , Negativa del Paciente al Tratamiento/estadística & datos numéricos , Neoplasias Urológicas/tratamiento farmacológico , Dispositivos de Acceso Vascular/efectos adversos
3.
Dig Liver Dis ; 51(2): 318-320, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30581069

RESUMEN

INTRODUCTION: Combination of cisplatine and Gemcitabine (CisGem) is the reference 1st line Chemotherapy in patients with advanced biliary cancer. FOLFIRINOX demonstrated an overall survival superiority when compared to gemcitabine in 1st line for patients with metastatic pancreatic adenocarcinoma. Because of similarities between pancreatic and biliary cancers, we proposed a randomized trial comparing mFOLFIRINOX and CisGEm. AIM: PRODIGE38-AMEBICA is a phase II/III trial evaluating efficacy of modifed FOLFIRINOX (D1 bolus removed) or CisGEm on patients with locally advanced non resectable or metastatic biliary tract cancer. PATIENTS AND METHODS: Main inclusion criteria are histologically or cytologically proven biliary tract tumor (intra or extra hepatic or hilar or gallbladder carcinoma), measurable disease (metastases and/or primary tumor), Bilirubin <1,5 N and transaminases <5 N. The randomization (ratio 1:1) will be stratified on center, stage of the disease, tumor localization and previous adjuvant treatment. The Phase II trial has an objective of 73% patients alive and without progression at 6 months for Folfirinox (versus 59% for Gemcis). 128 additional patients should be added in the phase III trial with an objective of overall survival improvement of 4 months in favor of mFOLFIRINOX. CONCLUSION: The study is opened in France (EudraCT no.: 2015-002282-35). All the patients (188) of the phase II part are currently randomized.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias de los Conductos Biliares , Carcinoma , Cisplatino/administración & dosificación , Desoxicitidina/análogos & derivados , Antineoplásicos/administración & dosificación , Neoplasias de los Conductos Biliares/tratamiento farmacológico , Neoplasias de los Conductos Biliares/patología , Carcinoma/tratamiento farmacológico , Carcinoma/patología , Desoxicitidina/administración & dosificación , Monitoreo de Drogas , Femenino , Fluorouracilo/administración & dosificación , Francia , Humanos , Irinotecán/administración & dosificación , Leucovorina/administración & dosificación , Masculino , Invasividad Neoplásica , Estadificación de Neoplasias , Oxaliplatino/administración & dosificación , Gemcitabina
4.
BMC Cancer ; 18(1): 762, 2018 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-30041614

RESUMEN

BACKGROUND: At time of diagnosis, less than 10% of patients with pancreatic adenocarcinomas (PDAC) are considered to be immediately operable (i.e. resectable). Considering their poor overall survival (OS), only tumours without vascular invasion (NCCN 2017) should be considered for resection, i.e. those for which resection with disease-free margins (R0) is theoretically possible in absence of presurgery treatment. With regard to high R1 rates and undetectable locoregional and/or metastatic spreading prior to surgery explain (at least in part) the observed 1-year relapse and mortality rates of 50 and 25%, respectively. Today, upfront surgery followed by adjuvant chemotherapy is the reference treatment in Europe. The main limitation of the adjuvant approach is the low rate of completion of the full therapeutic sequence. Indeed, only 47 to 60% patients received any adjuvant therapy after resection compared to more than 75% for neoadjuvant therapy. No previous prospective study has compared this approach to a neoadjuvant FOLFIRINOX or FOLFOX chemotherapy for resectable PDAC. METHODS: PANACHE01-PRODIGE48 is a prospective multicentre controlled randomized non comparative Phase II trial, evaluating the safety and efficacy of two regimens of neo-adjuvant chemotherapy (4 cycles of mFOLFIRINOX or FOLFOX) relative to the current reference treatment (surgery and then adjuvant chemotherapy) in patients with resectable PDAC. The main co-primary endpoints are OS rate at 12 months and the rate of patients undergoing the full therapeutic sequence. DISCUSSION: The "ideal" cancer treatment for resectable PDAC would have the following characteristics: administration to the highest possible proportion of patients, ability to identify fast-progressing patients (i.e. poor candidates for surgery), a low rate of R1 resections (through optimisation of local disease control), and an acceptable toxicity profile. The neoadjuvant approach may meet all these criteria. With respect to published data on the efficacy of FOLFOX and mFOLFIRINOX, these two regimens are potential candidates for neoadjuvant use in the aim to optimising oncological outcomes in resectable PDAC. TRIAL REGISTRATION: ClinicalTrials.gov , NCT02959879 . Trial registration date: November 9, 2016.


Asunto(s)
Adenocarcinoma , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Fluorouracilo/uso terapéutico , Leucovorina/uso terapéutico , Terapia Neoadyuvante , Compuestos Organometálicos/uso terapéutico , Neoplasias Pancreáticas , Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/cirugía , Ensayos Clínicos Fase II como Asunto , Combinación de Medicamentos , Humanos , Irinotecán , Estudios Multicéntricos como Asunto , Oxaliplatino , Neoplasias Pancreáticas/tratamiento farmacológico , Neoplasias Pancreáticas/cirugía , Ensayos Clínicos Controlados Aleatorios como Asunto , Neoplasias Pancreáticas
5.
JAMA Oncol ; 4(7): e173695, 2018 07 12.
Artículo en Inglés | MEDLINE | ID: mdl-29167892

RESUMEN

Importance: We know of no data on the prognostic value of primary tumor location (PTL) according to BRAF, RAS, and microsatellite instability (MSI) status in patients who have undergone resection for colon cancer (CC) and have been treated with current standard adjuvant chemotherapy. Objective: To determine the prognostic and predictive value of PTL according to BRAF, RAS, and MSI status in patients with stage III CC receiving adjuvant treatment with FOLFOX (folinic acid [leucovorin calcium], fluorouracil, and oxaliplatin) with or without cetuximab. Design, Setting, and Participants: This post hoc analysis included patients with available tumor blocks of resected stage III colon adenocarcinoma who participated in the Pan-European Trials in Alimentary Tract Cancer (PETACC)-8 phase 3 randomized trial. Among the 2559 patients who underwent randomization, 1900 were screened by next-generation sequencing, which showed that 1869 had full information concerning PTL. We categorized primary tumor site as located proximal (right) or distal (left) to the splenic flexure. Main Outcomes and Measures: The associations between PTL (right- vs left-sided) and disease-free survival (DFS), survival after relapse (SAR), and overall survival (OS) were assessed by Cox models and adjusted for clinical and pathological features, treatment, and MSI, BRAF, and RAS status. Results: Among the 1869 patients (1056 [57%] male; mean [SD] age, 59.4 [9.5] years) with full molecular data analyzed, 755 (40%) had a right-sided tumor, 164 (10%) had MSI, 942 (50%) had RAS mutations, and 212 (11%) had BRAF mutations. Right-sided tumor location was not prognostic for DFS in the whole population but was associated with a shorter SAR (hazard ratio [HR], 1.54; 95% CI, 1.23-1.93; P = .001) and OS (HR, 1.25; 95% CI, 1.02-1.54; P = .03). When looking at DFS in the different molecular subgroups, we found similar results for microsatellite-stable tumors and tumors with MSI; a better DFS in right-sided vs left-sided tumors in patients with RAS mutations (HR, 0.80; 95% CI, 0.64-1.00; P = .046); and a worse DFS in right-sided vs left-sided tumors in patients with RAS and BRAF double wild type (HR, 1.39; 95% CI, 1.01-1.92; P = .04). These results were found independently of the treatment received, and no beneficial effect of cetuximab on DFS or OS was observed in left-sided tumors. Conclusions and Relevance: Although right-sided tumor location is associated with poor survival in patients with metastatic CC as previously reported, the association with disease recurrence appears to vary for patients with stage III CC and RAS or BRAF mutations vs those with double wild type.


Asunto(s)
Neoplasias del Colon/genética , Proteínas Proto-Oncogénicas B-raf/genética , Proteínas Proto-Oncogénicas p21(ras)/genética , Neoplasias del Colon/mortalidad , Neoplasias del Colon/patología , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Mutación , Estadificación de Neoplasias , Pronóstico
6.
Support Care Cancer ; 24(4): 1857-63, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26454864

RESUMEN

PURPOSE: Although considered safer than central venous catheters for administration of cancer chemotherapy, totally implanted venous access (TIVA) is associated with adverse events that may impair prognosis and quality of life of patients receiving chemotherapy. Our aim was to assess the feasibility and interest of surveillance of cancer chemotherapy TIVA-adverse events (AE), associated with morbidity-mortality conferences (MMCs) on TIVA-AE. METHODS: We performed a prospective interventional study in two hospitals (a university hospital and a comprehensive care center). For each cancer chemotherapy care pathway within each hospital, we set up surveillance of TIVA-AE and MMC on these events. Patients included in surveillance were those with a TIVA either placed or used for chemotherapy cycles in one of the participating wards. Feasibility of MMC was assessed by the number of MMC meetings that actually took place and the number of participants at each meeting. The interest of MMC was assessed by the number of TIVA-AE identified and analyzed, and the number and type of improvement actions selected and actually implemented. RESULTS: We recorded 0.41 adverse events per 1000 TIVA-day. MMCs were implemented in all care pathways, with sustained pluriprofessional attendance throughout the survey; 39 improvement actions were identified during meetings, and 18 were actually implemented. CONCLUSIONS: Surveillance of TIVA-AE associated with MMC is feasible and helps change practices. It could be useful for improving care of patients undergoing cancer chemotherapy.


Asunto(s)
Catéteres Venosos Centrales/efectos adversos , Neoplasias/mortalidad , Catéteres Venosos Centrales/estadística & datos numéricos , Femenino , Humanos , Masculino , Morbilidad , Neoplasias/complicaciones , Neoplasias/tratamiento farmacológico , Estudios Prospectivos , Calidad de Vida
7.
Mol Cancer Ther ; 14(12): 2782-8, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26494856

RESUMEN

High-dose FOLFIRI has an acceptable safety profile and promising efficacy. UDP-glucuronosyltransferase: (UGT1A1) polymorphism may be predictive of toxicity and efficacy of irinotecan. This phase II study aimed to evaluate the combination of high-dose FOLFIRI plus bevacizumab in patients with previously untreated metastatic colorectal cancer (MCRC) based on their UGT1A1 genotype. Patients with the UGT1A1 *1/*1 (group 1) or *1/*28 (group 2) genotype received bevacizumab plus high-dose FOLFIRI every 2 weeks. Using the Bryant and Day design with objective response rate and toxicity as the primary endpoints, 54 patients in each group were required with a planned interim analysis after inclusion of 17 patients per group. We planned to stop the trial at the interim analysis if ≤ 7 patients exhibited an objective response (OR) and/or ≥ 3 patients exhibited severe toxicity. At the interim analysis, ORs were higher than the number expected: 52.9% (group 1) and 58.8% (group 2). More than three toxic events occurred in both groups and, according to the interim analysis rule, the trial was closed due to unacceptable toxicity. Recruitment was stopped when 86 patients were included and an analysis on overall population was done for overall survival (OS) and progression-free survival (PFS). The median PFS was 10.7 months (group 1) and 10.4 months (group 2). The median OS was 25.5 months (group 1) and 23.9 months (group 2). This trial does not support the use of the intensive treatment with HD-FOLFIRI plus bevacizumab combination for MCRC in patients with the UGTA1*1/UGT1A1*1 or UGT1A1*1/UGT1A1*28 genotype.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Bevacizumab/administración & dosificación , Camptotecina/análogos & derivados , Neoplasias Colorrectales/tratamiento farmacológico , Glucuronosiltransferasa/genética , Adolescente , Adulto , Anciano , Camptotecina/administración & dosificación , Neoplasias Colorrectales/genética , Neoplasias Colorrectales/patología , Supervivencia sin Enfermedad , Femenino , Fluorouracilo/administración & dosificación , Genotipo , Humanos , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Polimorfismo Genético
8.
Forensic Sci Int ; 236: 10-5, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24529769

RESUMEN

In April of 2013, letters addressed to the President of United States and other government officials were intercepted and found to be contaminated with ricin, heightening awareness about the need to evaluate laboratory methods for detecting ricin. This study evaluated commercial DNA purification methods for isolating Ricinus communis DNA as measured by real-time polymerase chain reaction (PCR). Four commercially available DNA purification methods (two automated, MagNA Pure compact and MagNA Pure LC, and two manual, MasterPure complete DNA and RNA purification kit and QIAamp DNA blood mini kit) were evaluated. We compared their ability to purify detectable levels of R. communis DNA from four different sample types, including crude preparations of ricin that could be used for biological crimes or acts of bioterrorism. Castor beans, spiked swabs, and spiked powders were included to simulate sample types typically tested during criminal and public health investigations. Real-time PCR analysis indicated that the QIAamp kit resulted in the greatest sensitivity for ricin preparations; the MasterPure kit performed best with spiked powders. The four methods detected equivalent levels by real-time PCR when castor beans and spiked swabs were used. All four methods yielded DNA free of PCR inhibitors as determined by the use of a PCR inhibition control assay. This study demonstrated that DNA purification methods differ in their ability to purify R. communis DNA; therefore, the purification method used for a given sample type can influence the sensitivity of real-time PCR assays for R. communis.


Asunto(s)
ADN de Plantas/aislamiento & purificación , Ricinus/genética , Manejo de Especímenes/métodos , Automatización de Laboratorios , Ricinus communis/química , Sustancias para la Guerra Química/análisis , Extractos Vegetales/genética , Extractos Vegetales/aislamiento & purificación , Polvos/química , Reacción en Cadena en Tiempo Real de la Polimerasa , Ricina/análisis
9.
Eur J Cancer ; 50(6): 1076-83, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24433843

RESUMEN

BACKGROUND: For resectable gastric cancer, both postoperative chemoradiotherapy and perioperative chemotherapy demonstrate high-level evidence for improved survival in Western populations. To evaluate the feasibility of pre- or postoperative chemoradiotherapy, we proposed two multicentre phase II studies. PATIENTS AND METHODS: Patients with localised, histologically confirmed gastric cancer and Eastern Cooperative Oncology Group (ECOG) performance status <2 judged suitable for curative resection were eligible. Eligible patients were assigned to either preoperative chemoradiotherapy followed by surgical resection or surgical resection followed by chemoradiotherapy depending on each centre. Chemoradiotherapy regimen included four courses of FOLFIRI (5 Fluorouracil, Leucovorin, Irinotecan) regimen then Concurrent fluorouracil at 200 mg/m2/d by continuous infusion 5 days each week. A dose of 50 Gy in 25 fractions in the preoperative study, or 45 Gy in 25 fractions in the postoperative study, was delivered. The primary end-point for both studies was the proportion of patients, who completed the therapeutic sequence. RESULTS: Between September 2007 and January 2010, 63 patients were included in both studies. The postoperative study was stopped for futility at the first step. In the preoperative study, 31 patients (73.8%, confidence interval (CI) 95%: 65.8-90.1%) received complete therapeutic sequence. Serum albumin and dietary restriction evaluated by QLQ-STO22 (Quality of Life-Stomach module) score were significantly linked with chemoradiotherapy feasibility in univariate analysis with respectively Odds-ratio (OR) 1.16 [CI 95%: 1.01-1.33] and 0.17 [0.03-0.89], p=0.04. Median overall survival time was 26.4 months in the preoperative study. CONCLUSION: Feasibility of chemoradiotherapy was not achieved for these studies: 73.8% (CI 95%: 65.8-90.1) and 42.9% (CI 95%: 21.8-66%) in preoperative and postoperative settings respectively.


Asunto(s)
Adenocarcinoma/terapia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Fraccionamiento de la Dosis de Radiación , Neoplasias Gástricas/terapia , Adenocarcinoma/cirugía , Adulto , Anciano , Camptotecina/administración & dosificación , Camptotecina/análogos & derivados , Quimioradioterapia , Estudios de Factibilidad , Femenino , Fluorouracilo/administración & dosificación , Humanos , Irinotecán , Leucovorina/administración & dosificación , Masculino , Persona de Mediana Edad , Análisis Multivariante , Periodo Posoperatorio , Periodo Preoperatorio , Estómago/efectos de los fármacos , Estómago/efectos de la radiación , Estómago/cirugía , Neoplasias Gástricas/cirugía , Análisis de Supervivencia , Resultado del Tratamiento
10.
Neurosci Biobehav Rev ; 37(5): 930-49, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23583615

RESUMEN

Motor imagery (MI) or the mental simulation of action is now increasingly being studied using neuroimaging techniques such as positron emission tomography and functional magnetic resonance imaging. The booming interest in capturing the neural underpinning of MI has provided a large amount of data which until now have never been quantitatively summarized. The aim of this activation likelihood estimation (ALE) meta-analysis was to provide a map of the brain structures involved in MI. Combining the data from 75 papers revealed that MI consistently recruits a large fronto-parietal network in addition to subcortical and cerebellar regions. Although the primary motor cortex was not shown to be consistently activated, the MI network includes several regions which are known to play a role during actual motor execution. The body part involved in the movements, the modality of MI and the nature of the MI tasks used all seem to influence the consistency of activation within the general MI network. In addition to providing the first quantitative cortical map of MI, we highlight methodological issues that should be addressed in future research.


Asunto(s)
Mapeo Encefálico , Encéfalo/anatomía & histología , Encéfalo/fisiología , Imágenes en Psicoterapia , Funciones de Verosimilitud , Bases de Datos Factuales/estadística & datos numéricos , Extremidades/fisiología , Humanos , Imaginación , Vías Nerviosas/anatomía & histología , Vías Nerviosas/fisiología
11.
Dig Liver Dis ; 44(4): 350-4, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22119617

RESUMEN

BACKGROUND: The risks of chemoradiotherapy in elderly patients with rectal cancer have not yet been well-characterised. METHODS: We retrospectively reviewed the charts of patients with rectal cancer over 70 years old who were treated with chemoradiotherapy in two French university hospitals. RESULTS: A total of 125 patients were evaluated. Mean age was 75.1 ± 4.1 years and ranged from 70 to 90 years. Adverse effects ≥ grade 2 were observed in 32% of the patients and adverse effects ≥ grade 3 in 15%. Dose reduction for toxicity was performed in 18% of the patients and chemoradiotherapy discontinuation was necessary in 9%. Postoperative morbidity was 16% with two treatment-related deaths. Two-year survival rate was 84%. No variables had any influence on treatment-related adverse events. CONCLUSIONS: In selected elderly patients, chemoradiotherapy is well-tolerated, without any significant increase in adverse events, and the results are similar to those recorded in younger patients.


Asunto(s)
Antineoplásicos/uso terapéutico , Quimioradioterapia Adyuvante/efectos adversos , Neoplasias del Recto/patología , Neoplasias del Recto/terapia , Anciano , Anciano de 80 o más Años , Capecitabina , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapéutico , Supervivencia sin Enfermedad , Femenino , Fluorouracilo/análogos & derivados , Fluorouracilo/uso terapéutico , Francia , Humanos , Estimación de Kaplan-Meier , Leucovorina/uso terapéutico , Masculino , Metástasis de la Neoplasia , Estadificación de Neoplasias , Compuestos Organoplatinos/uso terapéutico , Oxaliplatino , Estudios Retrospectivos , Tegafur/uso terapéutico , Complejo Vitamínico B/uso terapéutico
12.
Lancet Oncol ; 12(11): 1032-44, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21903473

RESUMEN

BACKGROUND: The optimum use of cytotoxic drugs for advanced colorectal cancer has not been defined. Our aim was to investigate whether combination treatment is better than the sequential administration of the same drugs in patients with advanced colorectal cancer. METHODS: In this open-label, randomised, phase 3 trial, we randomly assigned patients (1:1 ratio) with advanced, measurable, non-resectable colorectal cancer and WHO performance status 0-2 to receive either first-line treatment with bolus (400 mg/m(2)) and infusional (2400 mg/m(2)) fluorouracil plus leucovorin (400 mg/m(2)) (simplified LV5FU2 regimen), second-line LV5FU2 plus oxaliplatin (100 mg/m(2)) (FOLFOX6), and third-line LV5FU2 plus irinotecan (180 mg/m(2)) (FOLFIRI) or first-line FOLFOX6 and second-line FOLFIRI. Chemotherapy was administered every 2 weeks. Randomisation was done centrally using minimisation (minimisation factors were WHO performance status, previous adjuvant chemotherapy, number of disease sites, and centre). The primary endpoint was progression-free survival after two lines of treatment. Analyses were by intention-to-treat. This trial is registered at ClinicalTrials.gov, NCT00126256. FINDINGS: 205 patients were randomly assigned to the sequential group and 205 to the combination group. 161 (79%) patients in the sequential group and 161 (79%) in the combination group died during the study. Median progression-free survival after two lines was 10·5 months (95% CI 9·6-11·5) in the sequential group and 10·3 months (9·0-11·9) in the combination group (hazard ratio 0·95, 95% CI 0·77-1·16; p=0·61). All six deaths caused by toxic effects of treatment occurred in the combination group. During first-line chemotherapy, significantly fewer severe (grade 3-4) haematological adverse events (12 events in 203 patients in sequential group vs 83 events in 203 patients in combination group; p<0·0001) and non-haematological adverse events (26 events vs 186 events; p<0·0001) occurred in the sequential group than in the combination group. INTERPRETATION: Upfront combination chemotherapy is more toxic and is not more effective than the sequential use of the same cytotoxic drugs in patients with advanced, non-resectable colorectal cancer. FUNDING: Sanofi-Aventis France.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias Colorrectales/tratamiento farmacológico , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Camptotecina/administración & dosificación , Camptotecina/efectos adversos , Camptotecina/análogos & derivados , Distribución de Chi-Cuadrado , Neoplasias Colorrectales/mortalidad , Neoplasias Colorrectales/patología , Supervivencia sin Enfermedad , Esquema de Medicación , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/efectos adversos , Francia , Humanos , Irinotecán , Estimación de Kaplan-Meier , Leucovorina/administración & dosificación , Leucovorina/efectos adversos , Masculino , Persona de Mediana Edad , Compuestos Organoplatinos/administración & dosificación , Compuestos Organoplatinos/efectos adversos , Oxaliplatino , Modelos de Riesgos Proporcionales , Medición de Riesgo , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento
13.
Int J Phytoremediation ; 12(6): 616-32, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21166285

RESUMEN

This study evaluates the feasibility of using the grass species Rendlia altera, Monocymbium ceresiiforme, Cynodon dactylon, and amendments (compost and lime) for the phytostabilisation of soils contaminated by Cu in the province of Katanga (Democratic Republic of Congo). Species were grown on control and Cu-contaminated plots (artificially contaminated with 2,500 mg kg(-1) Cu) unamended (NA), amended with 4.5 kg compost m(-2) or 0.2 kg lime m(-2). R. altera was also grown on contaminated plots amended with 22.5 kg compost m(-2) or 1 kg lime m(-2). Plant survival, growth, and reproduction were monitored for two years. Cu-concentration in leaves of R. altera and M. ceresiiforme were analysed. pH and extractable Cu (0.01 M CaCl2) in soil were analysed in April 2007 and 2008. Results showed that R. altera seems to be the best candidate because of its highest survival on NA, followed by M. ceresiiforme, while liming was necessary to ensure survival of C. dactylon. Lime increased plant reproduction and reduced Cu accumulation in leaves compared to compost. However, higher survival and number of spikes of R. altera obtained in experiment 2 with 22.5 kg compost m(-2) suggest that lime x compost interactions should be investigated in further studies.


Asunto(s)
Biodegradación Ambiental , Cobre/metabolismo , Poaceae/metabolismo , Contaminantes del Suelo/metabolismo , Compuestos de Calcio , Cynodon/crecimiento & desarrollo , Cynodon/metabolismo , República Democrática del Congo , Contaminación Ambiental , Concentración de Iones de Hidrógeno , Óxidos , Desarrollo de la Planta , Fenómenos Fisiológicos de las Plantas
14.
Am J Gastroenterol ; 103(9): 2215-9, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18844614

RESUMEN

INTRODUCTION: Photodynamic therapy (PDT) is a therapeutic option in patients with a superficial esophageal cancer. Recently, PDT was shown to be effective as a salvage therapy for a local recurrence after chemoradiotherapy (CRT). AIM: To compare retrospectively the results and the complications rate of PDT between consecutive patients treated in primary intent for a superficial esophageal cancer versus patients treated by PDT for a local recurrence after CRT. METHODS: Between 1999 and 2007 in a single center, 40 consecutive patients were treated by PDT for a superficial esophageal cancer, 25 (group 1) in primary intent and 15 (group 2) for a local recurrence after CRT. Two days after intravenous (IV) Photofrin (2 mg/kg), the phototherapy was performed with a dye laser. The treatment response and severe complications, defined as perforation and stricture requiring endoscopic dilation, were compared between the two groups. RESULTS: The patient and tumor characteristics were not different between the two groups. In group 1, 19 out of 25 patients (76%) were successfully treated versus 8 out of 15 patients (53%) in group 2 (P= 0.17). Severe complications occurred more frequently in patients with a prior CRT (8%vs 46.7%, P= 0.008) and included two perforations and five strictures requiring endoscopic dilation, while only two strictures occurred in group 1. A prior CRT was an independent risk factor of severe complications (odds ratio [OR] 8.05; 95% confidence interval [CI]1.22-43.0). CONCLUSIONS: Severe complications were significantly more frequent in patients treated after a prior CRT. PDT as a salvage therapy in patients with a local recurrence after CRT for esophageal cancer tended to be less efficient than in first-line treatment.


Asunto(s)
Neoplasias Esofágicas/terapia , Fotoquimioterapia/efectos adversos , Anciano , Distribución de Chi-Cuadrado , Terapia Combinada , Éter de Dihematoporfirina/efectos adversos , Éter de Dihematoporfirina/uso terapéutico , Neoplasias Esofágicas/tratamiento farmacológico , Neoplasias Esofágicas/patología , Neoplasias Esofágicas/radioterapia , Esofagoscopía , Femenino , Humanos , Modelos Logísticos , Masculino , Estadificación de Neoplasias , Fármacos Fotosensibilizantes/efectos adversos , Fármacos Fotosensibilizantes/uso terapéutico , Estudios Retrospectivos , Factores de Riesgo , Terapia Recuperativa , Estadísticas no Paramétricas , Resultado del Tratamiento
15.
Am J Gastroenterol ; 102(11): 2557-63, 2007 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17680847

RESUMEN

OBJECTIVES: To assess the impact of baseline nutritional status on treatment response and survival in nonmetastatic patients with a locally advanced esophageal cancer (LAEC) treated with definitive chemoradiotherapy (CRT). METHODS: One hundred five patients with LAEC treated by definitive CRT were retrospectively included. The CRT regimen was based on an external radiotherapy (RT) delivered concomitantly to a cisplatin-based chemotherapy (CT). Patients were considered to have a complete response (CR) to CRT when no residual tumor was detected on CT scan and esophagoscopy performed 2 months after the end of CRT. Multivariate analysis of predictive factors of response to CRT and survival were performed using a logistic regression and a Cox model, respectively. RESULTS: Mean value of baseline nutritional parameters was significantly different between nonresponder (N = 42) and responder (N = 63) patients to CRT (weight loss 10%vs 5.8%, P= 0.0047; serum albumin level 35 g/L vs 38.7 g/L, P= 0.0004; BMI 22.8 kg/m2vs 25.2 kg/m2, P= 0.01). In multivariate analysis, serum albumin level > 35 g/L was the only independent predictive factor of CR to CRT (P= 0.009). Independent prognostic factors of survival were BMI > 18 kg/m2 (P= 0.003), dysphagia Atkinson score <2 (P= 0.008), dose of RT > 50 Grays (Gy) (P < 0.0001) and CR to CRT (P < 0.0001). CONCLUSIONS: Survival was influenced by baseline nutritional status as well as dysphagia, dose of RT, and CR to CRT. Despite the retrospective design of the study, our results may provide the concept basis for performing a prospective nutritional intervention study in patients treated by definitive CRT for an esophageal cancer.


Asunto(s)
Neoplasias Esofágicas/tratamiento farmacológico , Neoplasias Esofágicas/radioterapia , Estado Nutricional , Distribución de Chi-Cuadrado , Cisplatino/uso terapéutico , Trastornos de Deglución/complicaciones , Neoplasias Esofágicas/mortalidad , Neoplasias Esofágicas/patología , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Valor Predictivo de las Pruebas , Modelos de Riesgos Proporcionales , Dosificación Radioterapéutica , Estudios Retrospectivos , Factores de Riesgo , Estadísticas no Paramétricas , Análisis de Supervivencia , Resultado del Tratamiento
16.
Gastroenterol Clin Biol ; 30(11): 1297-300, 2006 Nov.
Artículo en Francés | MEDLINE | ID: mdl-17185971

RESUMEN

Peritoneal carcinomatosis has been treated by extensive cytoreduction surgery and hyperthermic intraperitoneal chemotherapy (HIPEC). We report here our experience of 5 patients treated twice or three times by recurrent procedure of HIPEC and cytoreduction. The mortality rate was 0% and morbidity one 30%. Three patients have died at 6, 10, 18 months respectively after the second cytoreduction surgery and HIPEC, and two patients are still alive at 40 and 67 months. Our results might suggest that recurrent peritoneal carcinomatosis after cytoreduction and HIPEC, could be usefully treated by another cytoreduction and HIPEC procedure in a curative approach superior to more conventional treatments.


Asunto(s)
Carcinoma/terapia , Quimioterapia del Cáncer por Perfusión Regional/métodos , Hipertermia Inducida , Recurrencia Local de Neoplasia/terapia , Neoplasias Peritoneales/terapia , Adulto , Carcinoma/mortalidad , Terapia Combinada/métodos , Estudios de Factibilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/mortalidad , Neoplasias Peritoneales/mortalidad , Análisis de Supervivencia , Resultado del Tratamiento
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