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2.
Encephale ; 49(3): 219-226, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35221022

RESUMEN

CONTEXT: In France, care workers and health students have been intensely mobilized during the first wave of the COVID-19 pandemic. But few studies have evaluated psychological distress on non-medical health students, in addition to the challenges posed by pedagogical continuity while universities are closed following health and safety regulations. OBJECTIVES: This study aims to assess COVID-19's impact on health students in France on different levels: psychological, educational and social. METHODS: An online national cross-sectional study, from April 11 to May 30 2020, included sociodemographic, work conditions and numeric scales. RESULTS: A total of 4411 students answered. Regarding the K6 scale, 39% of students had moderate distress, and 21% had a high level of distress. Risk factors of psychological distress included being a woman (P<0.001), being between 19 and 21 years old (P<0.001), living alone (P=0.008), and not having the ability to isolate (P<0.001). Students on the frontline had less psychological distress (57 vs 62%, P=0.003), better quality of sleep (34% vs 28% high quality, P<0.001) but a higher consumption of medical (8.5% vs 6.5%, P=0.044) and non-medical (18% vs 10%, P<0.001) psychotropic drugs. Nurse and medical students had more distress and used more non-medical psychotropic substances than other health students (15% vs 9.2%). DISCUSSION: COVID-19' crisis had an important impact on health students' mental health, social life and training with discrepancies regarding the speciality whether they were on the frontline or not. There is an urgent need for psychological and pedagogical support for students, and even more so regarding the prolongation of the COVID-19 epidemic.


Asunto(s)
COVID-19 , Estudiantes de Medicina , Femenino , Humanos , Adulto Joven , Adulto , COVID-19/epidemiología , SARS-CoV-2 , Pandemias , Estudios Transversales , Estudiantes de Medicina/psicología
3.
Eur J Cancer ; 87: 140-146, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-29149760

RESUMEN

BACKGROUND: The GETUG 13 phase III trial tested personalised chemotherapy based on tumour marker decline in patients with poor-prognosis germ-cell tumour (GCT) and demonstrated that a dose-dense regimen improves progression-free survival in patients with an unfavourable decline. We investigated the pattern of relapse for patients included in GETUG 13. METHODS: We conducted an analysis of relapse events in patients from GETUG 13. Baseline procedures before inclusion in the trial comprised a thoraco-abdomino-pelvic computed tomography scan and a magnetic resonance imaging of the brain. RESULTS: With a median follow-up of 4.1 years (0.3; 8.8 years), a progression event was observed in 109/254 patients (43%). First event consisted in a marker progression only in 47 patients (43%), a radiographic progression only in 35 patients (32%), a mix progression on both markers and imaging in 12 patients (11%) and death in 15 patients (14%). In patients with radiographic progression only, brain was the predominant site (n = 19/35, 54%). Among patients with unfavourable decline who experienced a radiographic progression (as first and subsequent progression event, n = 58), brain was a site of progression in 28 patients (48%): 12/30 (40%) in patients treated with cisplatin, bleomycin and etoposide and 16/28 (57%) in those treated with dose-dense chemotherapy. CONCLUSIONS: Brain metastases develop often, early and frequently as the only site of relapse in the course of poor-prognosis GCT. This raises the question of early detection and optimal treatment of brain metastases in these patients, e.g. by integrating a systematic brain MRI after 2-3 months of chemotherapy.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Encefálicas/secundario , Neoplasias de Células Germinales y Embrionarias/tratamiento farmacológico , Neoplasias de Células Germinales y Embrionarias/secundario , Neoplasias Testiculares/tratamiento farmacológico , Neoplasias Testiculares/patología , Neoplasias Encefálicas/diagnóstico por imagen , Neoplasias Encefálicas/mortalidad , Ensayos Clínicos Fase III como Asunto , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Francia , Humanos , Estimación de Kaplan-Meier , Imagen por Resonancia Magnética , Masculino , Estudios Multicéntricos como Asunto , Neoplasias de Células Germinales y Embrionarias/diagnóstico por imagen , Neoplasias de Células Germinales y Embrionarias/mortalidad , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , Factores de Riesgo , Neoplasias Testiculares/diagnóstico por imagen , Neoplasias Testiculares/mortalidad , Factores de Tiempo , Tomografía Computarizada por Rayos X , Resultado del Tratamiento , Estados Unidos
4.
Eur J Cancer ; 65: 109-12, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27494036

RESUMEN

The long-term results of the EORTC 24954 trial comparing sequential versus alternating chemotherapy and radiotherapy (RT) for patients with locally advanced laryngeal and hypopharyngeal cancer are reported. From 1996 to 2004, 450 patients were randomly assigned (1-1) to a sequential arm (SA = induction cisplatin-5fluorouracil followed by a 70Gy-RT for the responders or a total laryngectomy and post-operative RT for the non-responders) and an alternating arm (AA = cisplatin-5fluorouracil alternated with three 2-week courses of 20 Gy-RT for a total dose of 60 Gy). Median follow-up was 10.2 years. Ten-year survival with functional larynx (primary end-point) and overall survival were similar in both arms (18.7% and 33.6% in SA versus 18.3% and 31.6% in AA). Late toxicity was also similar; however, a trend for higher larynx preservation and better laryngeal function was observed in AA.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Escamosas/terapia , Quimioradioterapia/métodos , Neoplasias Hipofaríngeas/terapia , Neoplasias Laríngeas/terapia , Laringe , Tratamientos Conservadores del Órgano/métodos , Adulto , Anciano , Carcinoma de Células Escamosas/patología , Cisplatino/administración & dosificación , Progresión de la Enfermedad , Fraccionamiento de la Dosis de Radiación , Femenino , Fluorouracilo/administración & dosificación , Humanos , Neoplasias Hipofaríngeas/patología , Neoplasias Laríngeas/patología , Laringectomía , Masculino , Persona de Mediana Edad , Análisis de Supervivencia , Adulto Joven
5.
Ann Oncol ; 26(12): 2392-8, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26371288

RESUMEN

BACKGROUND: In clinical trials, the use of intermediate time-to-event end points (TEEs) is increasingly common, yet their choice and definitions are not standardized. This limits the usefulness for comparing treatment effects between studies. The aim of the DATECAN Kidney project is to clarify and recommend definitions of TEE in renal cell cancer (RCC) through a formal consensus method for end point definitions. MATERIALS AND METHODS: A formal modified Delphi method was used for establishing consensus. From a 2006-2009 literature review, the Steering Committee (SC) selected 9 TEE and 15 events in the nonmetastatic (NM) and metastatic/advanced (MA) RCC disease settings. Events were scored on the range of 1 (totally disagree to include) to 9 (totally agree to include) in the definition of each end point. Rating Committee (RC) experts were contacted for the scoring rounds. From these results, final recommendations were established for selecting pertinent end points and the associated events. RESULTS: Thirty-four experts scored 121 events for 9 end points. Consensus was reached for 31%, 43% and 85% events during the first, second and third rounds, respectively. The expert recommend the use of three and two endpoints in NM and MA setting, respectively. In the NM setting: disease-free survival (contralateral RCC, appearance of metastases, local or regional recurrence, death from RCC or protocol treatment), metastasis-free survival (appearance of metastases, regional recurrence, death from RCC); and local-regional-free survival (local or regional recurrence, death from RCC). In the MA setting: kidney cancer-specific survival (death from RCC or protocol treatment) and progression-free survival (death from RCC, local, regional, or metastatic progression). CONCLUSIONS: The consensus method revealed that intermediate end points have not been well defined, because all of the selected end points had at least one event definition for which no consensus was obtained. These clarified definitions of TEE should become standard practice in all RCC clinical trials, thus facilitating reporting and increasing precision in between trial comparisons.


Asunto(s)
Carcinoma de Células Renales/terapia , Determinación de Punto Final/normas , Adhesión a Directriz/normas , Neoplasias Renales/terapia , Ensayos Clínicos Controlados Aleatorios como Asunto/normas , Carcinoma de Células Renales/mortalidad , Técnica Delphi , Supervivencia sin Enfermedad , Determinación de Punto Final/métodos , Humanos , Neoplasias Renales/mortalidad , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/terapia , Ensayos Clínicos Controlados Aleatorios como Asunto/métodos
6.
Rev Mal Respir ; 32(9): 895-902, 2015 Nov.
Artículo en Francés | MEDLINE | ID: mdl-26050081

RESUMEN

INTRODUCTION: Noninvasive ventilation (NIV) is considered as the first choice treatment for selected patients with acute respiratory failure (ARF), but many hospitals are forced to start NIV on medical wards. METHODS: The aim of this retrospective study was to assess the outcomes of NIV initiated for ARF on a respiratory ward and to find the criteria predictive of failure. All patients were treated in a four-bed ward specifically dedicated to NIV. Failure of NIV was defined as the need for intubation and transfer to ICU, or death. RESULTS: Among 105 admissions with ARF, 49 episodes needed NIV. These episodes were divided into 2 groups: PaCO2<45mmHg (10) and PaCO2>45mmHg (39). The overall failure rate of NIV and overall in-hospital mortality rate were 26.5% and 17% respectively. On multivariate analysis, SAPS II and respiratory acidosis with a pH less than 7.30 were significantly associated with failure of NIV. CONCLUSIONS: NIV is practicable and is effective in the management of mild to moderate ARF on a respiratory ward. However, patients with respiratory acidosis and a pH less than 7.30 are at risk of NIV failure.


Asunto(s)
Ventilación no Invasiva , Insuficiencia Respiratoria/terapia , Enfermedad Aguda , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ventilación no Invasiva/estadística & datos numéricos , Admisión del Paciente/estadística & datos numéricos , Enfermedad Pulmonar Obstructiva Crónica/complicaciones , Enfermedad Pulmonar Obstructiva Crónica/epidemiología , Enfermedad Pulmonar Obstructiva Crónica/terapia , Neumología , Síndrome de Dificultad Respiratoria/epidemiología , Síndrome de Dificultad Respiratoria/etiología , Síndrome de Dificultad Respiratoria/terapia , Insuficiencia Respiratoria/epidemiología , Insuficiencia Respiratoria/etiología , Estudios Retrospectivos
7.
Ann Oncol ; 26(6): 1123-1128, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25802238

RESUMEN

BACKGROUND: Papillary renal cell carcinoma (PRCC), type 1 and type 2, represents 10%-15% of renal cell carcinomas (RCC). There is no standard first-line treatment of metastatic PRCC (mPRCC). Anti-angiogenics have shown activity in retrospective studies but no prospective studies in pure papillary histology have been reported, but one with foretinib. PATIENTS AND METHODS: A prospective phase II study evaluated sunitinib in first-line treatment of mPRCC. The primary end point was overall response rate (ORR). Secondary end points were progression-free survival (PFS) and overall survival (OS). RESULTS: Fifteen and 46 patients, respectively, with type 1 and type 2 mPRCC were enrolled. Using the MSKCC scoring system: 12 (20%), 33 (55%) and 9 (15%) patients were, respectively, in the favourable, intermediate or poor risk group and 7 undetermined. Median follow-up is 51.4 months. In type 1, 2 patients 13% [95% confidence interval (CI) 0.1-30.5] had a partial response (PR), 10 had stable disease (SD) with 5 (33%) ≥12 weeks. In type 2, 5 patients 11% (95% CI 1.9-20.3) had a PR, 25 had SD with 10(22%) ≥12 weeks. Median PFS was 6.6 months (95% CI 2.8-14.8) in type 1 and 5.5 months (95% CI 3.8-7.1) in type 2. Median OS was 17.8 (95% CI 5.7-26.1) and 12.4 (95% CI 8.2-14.3) months, respectively, in type 1 and 2. Safety was as expected with sunitinib for metastatic RCC. CONCLUSION: Sunitinib showed activity in treatment of type 1 and 2 mPRCC but lower than in clear-cell mRCC. Both PFS and OS are longer in type I PRCC. Sunitinib represents an acceptable option in first-line treatment of mPRCC.


Asunto(s)
Inhibidores de la Angiogénesis/uso terapéutico , Carcinoma de Células Renales/tratamiento farmacológico , Indoles/uso terapéutico , Neoplasias Renales/tratamiento farmacológico , Pirroles/uso terapéutico , Anciano , Inhibidores de la Angiogénesis/efectos adversos , Carcinoma de Células Renales/mortalidad , Carcinoma de Células Renales/secundario , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Femenino , Francia , Humanos , Indoles/efectos adversos , Estimación de Kaplan-Meier , Neoplasias Renales/mortalidad , Neoplasias Renales/patología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Pirroles/efectos adversos , Factores de Riesgo , Sunitinib , Factores de Tiempo , Resultado del Tratamiento
8.
Ann Oncol ; 25(5): 987-91, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24595454

RESUMEN

BACKGROUND: The standard treatment of patients with metastatic germ-cell tumor (GCT) relapsing after first-line chemotherapy is based on a cisplatin and ifosfamide-containing three-drug regimen, which usually yields a complete response (CR) rate <50%. As gemcitabine consistently displayed activity in patients with advanced GCT and as synergy with cisplatin was reported, we integrated this drug into the salvage triplet regimen and assessed its activity in this phase II study. PATIENTS AND METHODS: The GIP regimen consisted in gemcitabine 1000 mg/m(2) day 1 and 5, ifosfamide 1200 mg/m(2)/day day 1-5, cisplatin 20 mg/m(2)/day day 1-5, and granulocyte colony-stimulating factor 263 µg/day day 7-15, repeated every 3 weeks for four cycles. Eligibility criteria were that patients had favorable prognostic factors to conventional-dose salvage chemotherapy including a testis primary tumor and a previous CR to first-line chemotherapy for metastatic disease. The primary end point was the CR rate and a two-stage Simon design was used. RESULTS: Thirty-seven patients were accrued and 29 (78%) achieved a favorable response, including a CR in 20 (54%) and a partial response with normalization of tumor markers (PRm-) in 9 (24%). With a median follow-up of 53 months (13-81), the 2-year overall survival rate is 73% (57%-84%) and the continuous progression-free survival rate is 51% (35%-66%). Myelosuppression was the main toxicity including febrile neutropenia in 8 (22%) patients and 18 (50%) cases required platelet infusion. No grade 3 and 4 peripheral neurotoxicity or renal toxicity occurred. Two patients died of treatment-related toxicity, one of them with cancer progression. CONCLUSION: In a multicenter context, four cycles of the GIP regimen achieved a high CR rate in patients with relapsed testicular GCT. The GIP regimen avoided severe neurotoxicity and yielded a high survival rate. CLINICAL TRIAL NUMBER: NCT00127049.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Neoplasias de Células Germinales y Embrionarias/tratamiento farmacológico , Neoplasias Testiculares/tratamiento farmacológico , Adulto , Cisplatino/administración & dosificación , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Esquema de Medicación , Humanos , Ifosfamida/administración & dosificación , Estimación de Kaplan-Meier , Metástasis Linfática , Masculino , Persona de Mediana Edad , Neoplasias de Células Germinales y Embrionarias/mortalidad , Neoplasias de Células Germinales y Embrionarias/secundario , Estudios Prospectivos , Terapia Recuperativa , Neoplasias Testiculares/mortalidad , Neoplasias Testiculares/patología , Resultado del Tratamiento , Adulto Joven , Gemcitabina
10.
Bull Cancer ; 100(10): 983-97, 2013 Oct.
Artículo en Francés | MEDLINE | ID: mdl-24126183

RESUMEN

Head and neck cancers are the fifth among the most common cancers in France. Two thirds of cases occur at an advanced stage. For advanced disease, progression-free survival, despite undeniable progress, remains below 50% at three years. The last 20 years have been marked by the necessity to identify situations where less intense surgery and/or radiotherapy and/or chemotherapy is possible without jeopardizing the prognosis, and situations where a therapeutic intensification is necessary and results in a gain in survival while better preserving function with less toxicity. French cooperative groups gathering radiation oncologists (GORTEC), surgeons (GETTEC) and medical oncologists or physicians involved in the management of systemic treatments in head and neck cancers (GERCOR) are now belonging to the INCa-labelled Intergroup ORL to deal with the challenges of head and neck cancers.


Asunto(s)
Otolaringología/organización & administración , Neoplasias de Oído, Nariz y Garganta/terapia , Oncología por Radiación/organización & administración , Quimioradioterapia/métodos , Quimioradioterapia/tendencias , Supervivencia sin Enfermedad , Francia , Humanos , Quimioterapia de Inducción/métodos , Láseres de Gas/uso terapéutico , Oncología Médica/organización & administración , Tratamientos Conservadores del Órgano/métodos , Otolaringología/métodos , Otolaringología/tendencias , Neoplasias de Oído, Nariz y Garganta/mortalidad , Neoplasias de Oído, Nariz y Garganta/patología , Neoplasias de Oído, Nariz y Garganta/virología , Infecciones por Papillomavirus/complicaciones , Neoplasias de los Senos Paranasales/cirugía , Fototerapia/métodos , Oncología por Radiación/métodos , Oncología por Radiación/tendencias , Retratamiento/métodos , Robótica/métodos , Biopsia del Ganglio Linfático Centinela
11.
Eur Ann Otorhinolaryngol Head Neck Dis ; 130(3): 165-72, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23332168

RESUMEN

OBJECTIVES: The French Society of Otorhinolaryngology (SFORL) set up a work group to draw up guidelines for initial staging of head and neck squamous cell carcinoma. Locoregional and remote extension assessment are dealt with in two separate reports. The present part 3 deals with the assessment of frequent associated symptoms and pathologies, requiring early treatment and the collection of data on a certain number of clinical and paraclinical parameters for therapeutic decision-making in the multidisciplinary team meeting. MATERIALS AND METHODS: A multidisciplinary critical analysis of the literature was conducted. General assessment here covers screening, assessment and initial management of the following: usual risk factors (smoking, alcohol, HPV), the most frequent medical comorbidities, nutritional status, social and psychological status, dental status, pain and possible anemia. As oncologic management frequently associates surgery, radiation therapy and chemotherapy, the underlying examinations should be early, as part of initial staging. The levels of evidence for the examinations were estimated so as to grade guidelines, failing which expert consensuses were established. RESULTS: The high rates of pain, malnutrition and anemia call for systematic screening and early management, especially as rapidly effective treatments exist. Assessing comorbidity and social and psychological status enables general health status to be assessed, along with possible contraindications to the usual treatments. Tracheal intubation problems may require intubation under flexible endoscopy or jet-ventilation by inter-cricothyroid catheterization from the diagnostic endoscopy stage. Assessment and adapted dental care should be conducted if radiation therapy is likely or certain. CONCLUSION: Early management of symptoms and comorbidity and anticipation of subsequent treatment are intended to shorten initial staging time and to collate the data needed for therapeutic decision-making. This assessment should be performed at the same time as the locoregional and remote extension assessment, and is obviously to be adapted according to tumoral extension stage and the possible treatment options.


Asunto(s)
Carcinoma de Células Escamosas/patología , Neoplasias Laríngeas/patología , Neoplasias de la Boca/patología , Neoplasias Faríngeas/patología , Carcinoma de Células Escamosas/terapia , Humanos , Comunicación Interdisciplinaria , Neoplasias Laríngeas/terapia , Neoplasias de la Boca/terapia , Estadificación de Neoplasias , Grupo de Atención al Paciente , Neoplasias Faríngeas/terapia , Medición de Riesgo , Factores de Riesgo
12.
Prog Urol ; 21 Suppl 2: S43-5, 2011 Mar.
Artículo en Francés | MEDLINE | ID: mdl-21397827

RESUMEN

The aim of this article is to make a synthesis of news headlines concerning the management of upper tract urinary carcinoma. For non muscle-invasive upper tract urinary tumors, ureteroscopy with biopsies is a part of the systematic diagnostic assessment in case of suspicious imaging. For muscle-invasive upper tract urinary tumors, there is low level of evidence of expert's opinion guidelines about neoadjuvant or adjuvant chemotherapy. These therapeutic strategies can be sometimes discussed, by arguing analogy with bladder tumors.


Asunto(s)
Carcinoma de Células Transicionales/diagnóstico , Carcinoma de Células Transicionales/tratamiento farmacológico , Neoplasias Renales/diagnóstico , Neoplasias Renales/tratamiento farmacológico , Neoplasias Ureterales/diagnóstico , Neoplasias Ureterales/tratamiento farmacológico , Humanos
13.
Bull Cancer ; 96(10): 1013-28, 2009 Oct.
Artículo en Francés | MEDLINE | ID: mdl-19744919

RESUMEN

PURPOSE: The purpose of the present article was to evaluate indications, regimens, treatment modalities, and predictive factors of response to treatment in locally advanced squamous cell carcinoma of the head and neck (SCCHN). METHODS: An expert panel including otolaryngology and head and neck surgery specialists, oncologists, radiotherapists and biologists analyzed the literature providing a synthesis and giving some recommendations. SYNTHESIS: Findings from the main randomized phase III trials highlight that the TPF regimen (docetaxel, cisplatin, fluorouracil) represent a preferential option when induction chemotherapy is indicated in either operable or non-operable patients. Given the potential fragility of patients presenting with SCCHN, treatment modalities in routine use require applying preventive measures and tailored follow-up according to each patient's profile. As regards predictive factors of response to TPF regimen, no factor is currently validated, but ongoing trials should provide better knowledge. CONCLUSION: Progresses in induction chemotherapy have allowed improving the prognosis of patients with locally advanced SCCHN. The TPF regimen represents a major improvement in this indication, and ongoing strategic clinical trials should refine its indications.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Escamosas/tratamiento farmacológico , Consenso , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/metabolismo , Biomarcadores/análisis , Carcinoma de Células Escamosas/patología , Cisplatino/administración & dosificación , Cisplatino/metabolismo , Ensayos Clínicos Fase III como Asunto , Femenino , Fluorouracilo/administración & dosificación , Fluorouracilo/metabolismo , Francia , Neoplasias de Cabeza y Cuello/metabolismo , Neoplasias de Cabeza y Cuello/patología , Humanos , Masculino , Persona de Mediana Edad , Ensayos Clínicos Controlados Aleatorios como Asunto , Inducción de Remisión/métodos , Taxoides/administración & dosificación , Taxoides/metabolismo
14.
J Natl Cancer Inst ; 101(3): 142-52, 2009 Feb 04.
Artículo en Inglés | MEDLINE | ID: mdl-19176454

RESUMEN

BACKGROUND: Both induction chemotherapy followed by irradiation and concurrent chemotherapy and radiotherapy have been reported as valuable alternatives to total laryngectomy in patients with advanced larynx or hypopharynx cancer. We report results of the randomized phase 3 trial 24954 from the European Organization for Research and Treatment of Cancer. METHODS: Patients with resectable advanced squamous cell carcinoma of the larynx (tumor stage T3-T4) or hypopharynx (T2-T4), with regional lymph nodes in the neck staged as N0-N2 and with no metastasis, were randomly assigned to treatment in the sequential (or control) or the alternating (or experimental) arm. In the sequential arm, patients with a 50% or more reduction in primary tumor size after two cycles of cisplatin and 5-fluorouracil received another two cycles, followed by radiotherapy (70 Gy total). In the alternating arm, a total of four cycles of cisplatin and 5-fluorouracil (in weeks 1, 4, 7, and 10) were alternated with radiotherapy with 20 Gy during the three 2-week intervals between chemotherapy cycles (60 Gy total). All nonresponders underwent salvage surgery and postoperative radiotherapy. The Kaplan-Meier method was used to obtain time-to-event data. RESULTS: The 450 patients were randomly assigned to treatment (224 to the sequential arm and 226 to the alternating arm). Median follow-up was 6.5 years. Survival with a functional larynx was similar in sequential and alternating arms (hazard ratio of death and/or event = 0.85, 95% confidence interval = 0.68 to 1.06), as were median overall survival (4.4 and 5.1 years, respectively) and median progression-free interval (3.0 and 3.1 years, respectively). Grade 3 or 4 mucositis occurred in 64 (32%) of the 200 patients in the sequential arm who received radiotherapy and in 47 (21%) of the 220 patients in the alternating arm. Late severe edema and/or fibrosis was observed in 32 (16%) patients in the sequential arm and in 25 (11%) in the alternating arm. CONCLUSIONS: Larynx preservation, progression-free interval, and overall survival were similar in both arms, as were acute and late toxic effects.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/radioterapia , Quimioterapia Adyuvante/métodos , Neoplasias Laríngeas/tratamiento farmacológico , Neoplasias Laríngeas/radioterapia , Laringectomía , Radioterapia Adyuvante/métodos , Adulto , Anciano , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/fisiopatología , Carcinoma de Células Escamosas/cirugía , Quimioterapia Adyuvante/efectos adversos , Cisplatino/administración & dosificación , Supervivencia sin Enfermedad , Europa (Continente) , Femenino , Fibrosis/etiología , Fluorouracilo/administración & dosificación , Estudios de Seguimiento , Humanos , Estimación de Kaplan-Meier , Edema Laríngeo/etiología , Neoplasias Laríngeas/patología , Neoplasias Laríngeas/fisiopatología , Neoplasias Laríngeas/cirugía , Laringectomía/métodos , Masculino , Persona de Mediana Edad , Mucositis/etiología , Estadificación de Neoplasias , Selección de Paciente , Dosificación Radioterapéutica , Radioterapia Adyuvante/efectos adversos , Recuperación de la Función , Inducción de Remisión , Proyectos de Investigación , Terapia Recuperativa/métodos , Insuficiencia del Tratamiento , Resultado del Tratamiento
15.
Rev Chir Orthop Reparatrice Appar Mot ; 93(6): 546-54, 2007 Oct.
Artículo en Francés | MEDLINE | ID: mdl-18065863

RESUMEN

PURPOSE OF THE STUDY: Extra-abdominal aggressive fibromatosis (EAAF) is a benign desmoid tumor with a potentially aggressive behavior. Surgical treatment is compromised by a very high rate of recurrence, sometimes with significant morbidity. We conducted a prospective surveillance of our patients (clinical and MRI) with EAAF to search for prognostic factors. MATERIAL AND METHODS: This cohort included 17 patients with EAAF. For nine patients, biopsy alone was performed. For eight, the tumor was a recurrence after surgical removal. Patients were seen for a clinical assessment and MRI every six months. RESULTS: Median follow-up was 42 months (range 6-114). Three patients worsened clinically with pain or functional impairment. One patient required neurosurgery to control pain (good stable outcome). MRI showed progression for two tumors (12%) but with a short follow-up since diagnosis (9 and 14 months), in one case despite medical treatment. Three tumors regressed and twelve remained stable on successive MRI. On average the tumor growth lasted ten months. DISCUSSION: Tumor growth was never noted beyond 36 months. This notion of an interruption in tumor growth is mentioned sporadically in reports on EAAF, which have generally included recurrent tumors. To our knowledge this is the first series reporting tumors left in place a followed with modern imaging techniques. The high rate of spontaneous interruption of tumor growth must be counterbalanced with the difficult task of local treatment: the risk of recurrence is particularly high after surgery and functional sequelae can be significant when wide resection is proposed in an anatomically difficult localization. The precise role for surgery, and combined radiotherapy, remain to be determined. There are only scarce reports on general treatments. Considering these facts, we propose that surgical resection should not be considered the only solution for the treatment of EAAF. Further work is needed to define the useful contribution of simple surveillance of these benign tumors.


Asunto(s)
Fibromatosis Agresiva/fisiopatología , Recurrencia Local de Neoplasia/fisiopatología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Biopsia , Quimioterapia Adyuvante , Estudios de Cohortes , Progresión de la Enfermedad , Femenino , Fibromatosis Agresiva/patología , Fibromatosis Agresiva/cirugía , Estudios de Seguimiento , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Cuidados Paliativos , Estudios Prospectivos , Radioterapia Adyuvante , Inducción de Remisión , Resultado del Tratamiento
16.
Br J Cancer ; 94(10): 1395-401, 2006 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-16622447

RESUMEN

A multicentre phase II trial to determine the efficacy of vinflunine as second-line therapy in patients with advanced transitional cell carcinoma (TCC) of the bladder; secondary objectives were to assess duration of response, progression-free survival (PFS) and overall survival (OS), and to evaluate the toxicity associated with this treatment. Patients had tumours that failed or progressed after first-line platinum-containing regimens for advanced or metastatic disease, or had progressive disease after platinum-containing chemotherapy given with adjuvant or neoadjuvant intent. Response and adverse events were assessed according to WHO criteria and NCI-CTC (version 2), respectively. Out of 51 patients treated with 320 mg m(-2) of vinflunine, nine patients responded to the therapy yielding an overall response rate of 18% (95% CI: 8.4-30.9%), and 67% (95%CI: 52.1-79.3%) achieved disease control (PR+SD). Of note, responses were seen in patients with relatively poor prognostic factors such as a short (<12 months) interval from prior platinum therapy (19%, including an 11% response rate in those progressing <3 months after platinum treatment), prior treatment for metastatic disease (24%), prior treatment with vinca alkaloids (14%) and visceral involvement (20%). The median duration of response was 9.1 months (95% CI: 4.2-15.0) and the median PFS was 3.0 months (95% CI: 2.4-3.8). The median OS was 6.6 months (95% CI: 4.8-7.6). The main haematological toxicity was grade 3-4 neutropenia, observed in 67% of patients (42% of cycles). Febrile neutropenia was observed in five patients (10%) and among them two were fatal. Constipation was frequently observed (but was manageable and noncumulative) and was grade 3-4 in only 8% of patients. The incidence of grade 3 nausea and vomiting was very low (4 and 6% of patients, respectively). Neither grade 3-4 sensory neuropathy nor severe venous irritation was observed. Moreover, and of importance in this particular study population, no grade 3-4 renal function impairment was observed. Vinflunine is an active agent for the treatment of platinum-pretreated bladder cancer, and these results warrant further investigation in phase III trials, either as monotherapy or in combination with other agents as treatment of advanced/metastatic TCC of the bladder.


Asunto(s)
Antineoplásicos Fitogénicos/uso terapéutico , Carcinoma de Células Transicionales/tratamiento farmacológico , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Vinblastina/análogos & derivados , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Transicionales/secundario , Femenino , Humanos , Masculino , Persona de Mediana Edad , Compuestos Organoplatinos/administración & dosificación , Compuestos Organoplatinos/efectos adversos , Neoplasias de la Vejiga Urinaria/patología , Vinblastina/uso terapéutico
17.
Biochem Soc Trans ; 33(Pt 1): 253-6, 2005 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-15667319

RESUMEN

The cAMP-protein kinase A (PKA) pathway in the yeast Saccharomyces cerevisiae controls a variety of properties that depend on the nutrient composition of the medium. High activity of the pathway occurs in the presence of rapidly fermented sugars like glucose or sucrose, but only as long as growth is maintained. Growth arrest of fermenting cells or growth on a respiratory carbon source, like glycerol or ethanol, is associated with low activity of the PKA pathway. We have studied how different nutrients trigger rapid activation of the pathway. Glucose and sucrose activate cAMP synthesis through a G-protein-coupled receptor system, consisting of the GPCR Gpr1, the Galpha protein Gpa2 and its RGS protein Rgs2. Glucose is also sensed intracellularly through its phosphorylation. Specific mutations in Gpr1 abolish glucose but not sucrose signalling. Activation of the PKA pathway by addition of a nitrogen source or phosphate to nitrogen- or phosphate-starved cells, respectively, is not mediated by an increase in cAMP. Activation by amino acids is triggered by the general amino acid permease Gap1, which functions as a transporter/receptor. Short truncation of the C-terminus results in constitutively activating alleles. Activation by ammonium uses the ammonium permeases Mep1 and Mep2 as receptor. Specific point mutations in Mep2 uncouple signalling from transport. Activation by phosphate is triggered a.o. by the Pho84 phosphate permease. Several mutations in Pho84 separating transport and signalling or triggering constitutive activation have been obtained.


Asunto(s)
Proteínas Quinasas Dependientes de AMP Cíclico/metabolismo , Saccharomyces cerevisiae/metabolismo , Activación Enzimática , Glucosa/metabolismo , Proteínas de Transporte de Membrana/metabolismo , Fosfatos/metabolismo , Fosforilación , Saccharomyces cerevisiae/enzimología , Sacarosa/metabolismo
18.
Biochem Soc Trans ; 33(Pt 1): 269-71, 2005 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-15667323

RESUMEN

Plant sugar signalling operates in a complex network with plant-specific hormone signalling pathways. Hexokinase was identified as an evolutionarily conserved glucose sensor that integrates light, hormone and nutrient signalling to control plant growth and development.


Asunto(s)
Glucosa/metabolismo , Plantas/metabolismo , Transducción de Señal , Proteínas de Arabidopsis/metabolismo , Genoma de Planta , Hexoquinasa/metabolismo , Plantas/genética , Proteoma
19.
Eur J Cancer ; 40(18): 2748-52, 2004 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-15571957

RESUMEN

The purpose of this study was to evaluate the activity and safety of OSI-211, the liposomal form of lurtotecan, in patients ineligible for curative surgery or radiotherapy and with metastatic/locoregional recurrent squamous cell carcinoma of the head and neck (SCCHN) and target lesions either within a previously irradiated field ("within") or outside a previously irradiated field ("outside"). OSI-211 was given intravenously over 30 min on days 1 and 8 at 2.4 mg/m2/day, repeated every 21 days (1 cycle). From July 2001 to March 2002, 32 patients from 14 institutions were enrolled in the "within" arm and 18 in the "outside" arm. In the "within" arm, two patients were ineligible because their tumour site was not allowed in the protocol (nasopharynx, skin) and two other patients never started treatment. Of the 46 eligible patients who started treatment, there was one objective response (response rate: 2.2% (95% Confidence Interval (CI): [0-11.5%]). Twelve patients in the "within" arm and 6 in the "outside" arm had stable disease, with a median duration of 18 weeks, 95% CI (12.7-25.7). The median time to progression was 6 weeks (95%CI: [5.9-12.7] weeks). Haematological toxicity was moderate in both arms. The most common haematological toxicity was grade 1-2 anaemia in 79% of patients. Non-haematological toxicity was mild in both arms. The most common grade 3-4 non-haematological toxicity was infection in 8.5% of patients. OSI-211 administered on d1 and d8, every 3 weeks, is well tolerated, but shows only minimal activity in locally advanced/metastatic SCCHN.


Asunto(s)
Antineoplásicos/uso terapéutico , Camptotecina/análogos & derivados , Camptotecina/uso terapéutico , Carcinoma de Células Escamosas/tratamiento farmacológico , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos/efectos adversos , Antineoplásicos/farmacocinética , Camptotecina/efectos adversos , Camptotecina/farmacocinética , Carcinoma de Células Escamosas/secundario , Femenino , Humanos , Masculino , Persona de Mediana Edad , Análisis de Supervivencia
20.
Ann Oncol ; 14(3): 373-7, 2003 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-12598340

RESUMEN

BACKGROUND: The purpose of this study was to carry out two randomised phase II trials of S16020, a new olivacine derivative, tested as a single agent in patients with recurrent head and neck cancer, using methotrexate as the control arm to validate the results. PATIENTS AND METHODS: S16020 at either 80 or 100 mg/m2 was administered as a 3-h infusion every 3 weeks. Methotrexate, 40 or 50 mg/m2, was given by bolus injection, weekly for a minimum of 6 weeks. In total, 36 patients were entered in the randomised studies (25 in an initial study, 11 in a confirmatory study) of whom 24 received S16020 and 12 received methotrexate. RESULTS: A scheduled interim analysis showed one patient having a non-confirmed objective response with S16020 and three patients having a confirmed objective response with methotrexate. In the methotrexate group, there were no patients with severe non-haematological toxicity. With S16020, there was a high incidence of severe non-haematological toxicities, including asthenia, oedema of the face, oedema and pain at the tumour sites and erythematous rash; consequently, both studies were stopped. CONCLUSIONS: Both studies were stopped due to the poor anticipated benefit/risk ratio for S16020, although time to progression and overall survival time were similar in both treatment arms.


Asunto(s)
Antimetabolitos Antineoplásicos/efectos adversos , Antimetabolitos Antineoplásicos/uso terapéutico , Carbazoles/efectos adversos , Carbazoles/uso terapéutico , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Metotrexato/efectos adversos , Metotrexato/uso terapéutico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Piridinas/efectos adversos , Piridinas/uso terapéutico , Adulto , Anciano , Antimetabolitos Antineoplásicos/administración & dosificación , Carbazoles/administración & dosificación , Progresión de la Enfermedad , Esquema de Medicación , Edema/etiología , Femenino , Neoplasias de Cabeza y Cuello/patología , Humanos , Infusiones Intravenosas , Inyecciones Intravenosas , Masculino , Metotrexato/administración & dosificación , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Piridinas/administración & dosificación , Análisis de Supervivencia , Resultado del Tratamiento
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