Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 65
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
J Urol ; 200(6): 1207-1214, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30012366

RESUMEN

PURPOSE: We evaluated the impact of the number of cycles of platinum based, first line chemotherapy (fewer than 6 cycles vs the conventional 6 cycles or more) on the survival of patients with metastatic urothelial carcinoma. MATERIALS AND METHODS: We used the RISC (Retrospective International Study of Invasive/Advanced Cancer of the Urothelium) database. The association of the number of cycles of chemotherapy with overall survival was investigated by Cox multiple regression analysis after controlling for recognized prognostic factors. We excluded patients who received fewer than 3 or more than 9 platinum chemotherapy cycles to reduce confounding factors. The primary analysis was a comparison of overall survival for 3 to 5 vs 6 to 9 cycles using 6-month landmark analysis when 281 death events were observed. RESULTS: Of the 1,020 patients in the RISC 472 received cisplatin or carboplatin, of whom 338 and 134, respectively, were evaluable. A total of 157 patients received 3 to 5 cycles (median 4) and 315 received 6 to 9 cycles (median 6). There was no significant difference in overall survival between 3 to 5 and 6 to 9 cycles (HR 1.02, 95% CI 0.78-1.33, p = 0.91). No significant interactions were observed for the type of platinum (p = 0.09) and completed planned chemotherapy (p = 0.56). The limitations of a hypothesis generating, retrospective analysis applied. CONCLUSIONS: Four cycles of platinum based, first line chemotherapy appeared adequate and did not significantly compromise the survival of patients with advanced urothelial carcinoma. The omission of excessive cycles may avoid unnecessary cumulative toxicity and facilitate a better transition to second line therapy and investigational switch maintenance therapy strategies. These results require prospective validation but they may impact practice in select patients.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Carcinoma de Células Transicionales/tratamiento farmacológico , Compuestos de Platino/administración & dosificación , Neoplasias Urológicas/tratamiento farmacológico , Anciano , Carcinoma de Células Transicionales/mortalidad , Carcinoma de Células Transicionales/patología , Esquema de Medicación , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos , Resultado del Tratamiento , Neoplasias Urológicas/mortalidad , Neoplasias Urológicas/patología
2.
Oncologist ; 22(6): 667-679, 2017 06.
Artículo en Inglés | MEDLINE | ID: mdl-28592625

RESUMEN

The landscape of local and systemic therapy of renal cell carcinoma (RCC) is rapidly changing. The increase in the incidental finding of small renal tumors has increased the application of nephron-sparing procedures, while ten novel agents targeting the vascular endothelial growth factor (VEGF) or the mammalian target of rapamycin pathways, or inhibiting the interaction of the programmed death 1 receptor with its ligand, have been approved since 2006 and have dramatically improved the prognosis of metastatic RCC (mRCC). These rapid developments have resulted in continuous changes in the respective Clinical Practice Guidelines/Expert Recommendations. We conducted a systematic review of the existing guidelines in MEDLINE according to the Preferred Reporting Items for Systematic Review and Meta-Analyses statement, aiming to identify areas of agreement and discrepancy among them and to evaluate the underlying reasons for such discrepancies. Data synthesis identified selection criteria for nonsurgical approaches in renal masses; the role of modern laparoscopic techniques in the context of partial nephrectomy; selection criteria for cytoreductive nephrectomy and metastasectomy in mRCC; systemic therapy of metastatic non-clear-cell renal cancers; and optimal sequence of available agents in mRCC relapsed after anti-VEGF therapy as the major areas of uncertainty. Agreement or uncertainty was not always correlated with the availability of data from phase III randomized controlled trials. Our review suggests that the combination of systematic review and critical evaluation can define practices of wide applicability and areas for future research by identifying areas of agreement and uncertainty among existing guidelines. IMPLICATIONS FOR PRACTICE: Currently, there is uncertainity on the role of surgery in MRCC and on the choice of available guidelines in relapsed RCC. The best practice is individualization of targeted therapies. Systematic review of guidelines can help to identify unmet medical needs and areas of future research.


Asunto(s)
Carcinoma de Células Renales/tratamiento farmacológico , Carcinoma de Células Renales/cirugía , Recurrencia Local de Neoplasia/tratamiento farmacológico , Factor A de Crecimiento Endotelial Vascular/genética , Antineoplásicos/uso terapéutico , Carcinoma de Células Renales/genética , Carcinoma de Células Renales/patología , Humanos , Terapia Molecular Dirigida , Metástasis de la Neoplasia , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/cirugía , Guías de Práctica Clínica como Asunto , Factor A de Crecimiento Endotelial Vascular/antagonistas & inhibidores
3.
Arch Gynecol Obstet ; 290(2): 335-9, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24639289

RESUMEN

PURPOSE: The establishment of high dependency units (HDUs) has been an undoubted advance in the management of patients undergoing major oncological procedures. The aim of this study was to examine the impact of various preoperative and perioperative patients' characteristics on the prolonged HDU stay. METHODS: We conducted a retrospective study including all gynecologic oncology patients who underwent surgical management and were admitted postoperatively to our hospitals' HDU from 2006 to 2010. RESULTS: A total of 1,014 patients were transferred to the HDU and divided into two groups according to the length of HDU stay. Group A consisted of 840 (82.8 %) patients who stayed in the HDU for ≤24 h and Group B included 174 (17.2 %) patients who remained in the HDU under close observation for >24 h. Older age was the only preoperative characteristic that remained significantly associated with HDU prolonged stay. In addition, three intraoperative factors such as use of invasive hemodynamic monitoring, bowel resection and estimated blood loss were proved to be independently associated with prolonged HDU stay. CONCLUSION: Certain characteristics could identify those patients who are more likely to benefit most from HDU admission.


Asunto(s)
Neoplasias de los Genitales Femeninos/cirugía , Unidades de Cuidados Intensivos/estadística & datos numéricos , Factores de Edad , Anciano , Femenino , Procedimientos Quirúrgicos Ginecológicos , Humanos , Unidades de Cuidados Intensivos/provisión & distribución , Tiempo de Internación/estadística & datos numéricos , Persona de Mediana Edad , Cuidados Posoperatorios , Estudios Retrospectivos , Medición de Riesgo
4.
Cancer ; 119(16): 3020-6, 2013 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-23720197

RESUMEN

BACKGROUND: Use of progression-free survival (PFS) as a clinical trial endpoint in first-line treatment of patients with metastatic urothelial carcinoma (UC) is attractive, but would be enhanced by establishing a correlation between PFS and overall survival (OS). METHODS: Data was pooled from 7 phase 2 and 3 trials evaluating cisplatin-based chemotherapy in metastatic UC. An independent cohort of patients enrolled on a phase 3 trial was used for external validation. Landmark analyses for progression at 6 and 9 months after treatment initiation were performed to minimize lead-time bias. A proportional hazards model was used to assess the utility of PFS for predicting OS. RESULTS: A total of 364 patients were included in the initial cohort. The median PFS was 8.21 months (95% confidence interval = 7.43, 8.39) and the median OS was 13.50 months (95% confidence interval = 11.80, 15.67). In the landmark analysis, the median OS for patients who progressed at 6 months was 3.87 months compared with 15.06 months for those patients who did not progress (P < .0001) and the median OS for patients who progressed at 9 months was 5.65 months compared with 21.39 months for those patients who did not progress (P < .0001). A Fleischer model demonstrated a statistically significant dependent correlation between PFS and OS. The findings were externally validated in an independent cohort. CONCLUSIONS: PFS at 6 and 9 months predicted OS in this analysis of patients with metastatic UC treated with first-line cisplatin-based chemotherapy and could potentially serve as endpoints in (randomized) phase 2 trials to screen the activity of novel regimens.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Cisplatino/administración & dosificación , Ensayos Clínicos Fase II como Asunto , Ensayos Clínicos Fase III como Asunto , Estudios de Cohortes , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Modelos de Riesgos Proporcionales , Ensayos Clínicos Controlados Aleatorios como Asunto , Resultado del Tratamiento
5.
Cancer ; 119(16): 3012-9, 2013 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-23720216

RESUMEN

BACKGROUND: The current study was conducted to develop a pretreatment prognostic model for patients with unresectable and/or metastatic urothelial cancer who were treated with first-line, cisplatin-based chemotherapy. METHODS: Individual data were pooled from 399 patients who were enrolled on 8 phase 2 and 3 trials evaluating cisplatin-based, first-line chemotherapy in patients with metastatic urothelial carcinoma. Variables selected for inclusion in the model were combined in a Cox proportional hazards model to produce a points-based nomogram with which to predict the median, 1-year, 2-year, and 5-year survival. The nomogram was validated externally using data from a randomized trial of the combination of methotrexate, vinblastine, doxorubicin plus cisplatin versus docetaxel plus cisplatin. RESULTS: The median survival of the development cohort was 13.8 months (95% confidence interval, 12.1 months-16.0 months); 68.2% of the patients had died at the time of last follow-up. On multivariable analysis, the number of visceral metastatic sites, Eastern Cooperative Oncology Group performance status, and leukocyte count were each found to be associated with overall survival (P < .05), whereas the site of the primary tumor and the presence of lymph node metastases were not. All 5 variables were included in the nomogram. When subjected to internal validation, the nomogram achieved a bootstrap-corrected concordance index of 0.626. When applied to the external validation cohort, the nomogram achieved a concordance index of 0.634. Calibration plots suggested that the nomogram was well calibrated for all predictions. CONCLUSIONS: Based on routinely measured pretreatment variables, a nomogram was constructed that predicts survival in patients with unresectable and/or metastatic urothelial cancer who are treated with cisplatin-based chemotherapy. This model may be useful in patient counseling and clinical trial design.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Nomogramas , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Cisplatino/administración & dosificación , Cisplatino/efectos adversos , Ensayos Clínicos Fase II como Asunto , Ensayos Clínicos Fase III como Asunto , Estudios de Cohortes , Humanos , Persona de Mediana Edad , Modelos Estadísticos , Metástasis de la Neoplasia , Valor Predictivo de las Pruebas , Ensayos Clínicos Controlados Aleatorios como Asunto , Análisis de Supervivencia , Resultado del Tratamiento , Neoplasias de la Vejiga Urinaria/patología
6.
Oncology ; 84(3): 158-65, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23296063

RESUMEN

OBJECTIVE: The prognosis for patients with platinum-resistant advanced ovarian cancer remains poor. The impact of approved agents on survival has not been clarified during the last decade. We studied survival trends during the last 15 years in platinum-resistant patients treated with cytoreductive surgery followed by paclitaxel/platinum chemotherapy. METHODS: Patients with epithelial ovarian, fallopian or peritoneal cancer, stages III/IV and platinum-resistant disease after first-line chemotherapy with paclitaxel/platinum were included. They were grouped according to the period of chemotherapy: group A 31/3/1995-31/12/2001 (n = 56) and Group B 1/1/2002-24/12/2008 (n = 57). In order to compensate for the difference in follow-up between the 2 groups, we performed minimum follow-up (MFU) analyses by considering as cases only women who had an event within 3 years of follow-up. Patients with no events for up to 3 years were censored at that time. RESULTS: MFU analyses showed that median overall survival (OS) was significantly longer in group B: 12.3 vs. 17.5 months (p = 0.012). This was due to a doubling of the median OS after relapse: 5.7 vs. 10.9 months (p = 0.0180). Multivariate Cox regression indicated group and histology as factors statistically significantly associated with OS. Following relapse, patients in group B were predominantly treated with liposomal doxorubicin and gemcitabine, and patients in group A were treated with platinum compounds, docetaxel and oral etoposide (p < 0.001). CONCLUSIONS: The introduction of novel agents without cross-resistance to platinum or taxanes has improved the prognosis of platinum-resistant patients.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Resistencia a Antineoplásicos/efectos de los fármacos , Neoplasias de las Trompas Uterinas/mortalidad , Recurrencia Local de Neoplasia/mortalidad , Neoplasias Ováricas/mortalidad , Neoplasias Peritoneales/mortalidad , Adenocarcinoma de Células Claras/tratamiento farmacológico , Adenocarcinoma de Células Claras/mortalidad , Adenocarcinoma de Células Claras/patología , Adenocarcinoma Mucinoso/tratamiento farmacológico , Adenocarcinoma Mucinoso/mortalidad , Adenocarcinoma Mucinoso/patología , Anciano , Carboplatino/administración & dosificación , Cisplatino/administración & dosificación , Cistadenocarcinoma Seroso/tratamiento farmacológico , Cistadenocarcinoma Seroso/mortalidad , Cistadenocarcinoma Seroso/patología , Neoplasias Endometriales/tratamiento farmacológico , Neoplasias Endometriales/mortalidad , Neoplasias Endometriales/patología , Neoplasias de las Trompas Uterinas/tratamiento farmacológico , Neoplasias de las Trompas Uterinas/patología , Femenino , Estudios de Seguimiento , Humanos , Clasificación del Tumor , Recurrencia Local de Neoplasia/tratamiento farmacológico , Recurrencia Local de Neoplasia/patología , Estadificación de Neoplasias , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/patología , Paclitaxel/administración & dosificación , Neoplasias Peritoneales/tratamiento farmacológico , Neoplasias Peritoneales/patología , Pronóstico , Tasa de Supervivencia
7.
Int J Mol Sci ; 14(8): 15885-909, 2013 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-23903048

RESUMEN

Ovarian Cancer represents the most fatal type of gynecological malignancies. A number of processes are involved in the pathogenesis of ovarian cancer, especially within the tumor microenvironment. Angiogenesis represents a hallmark phenomenon in cancer, and it is responsible for tumor spread and metastasis in ovarian cancer, among other tumor types, as it leads to new blood vessel formation. In recent years angiogenesis has been given considerable attention in order to identify targets for developing effective anti-tumor therapies. Growth factors have been identified to play key roles in driving angiogenesis and, thus, the formation of new blood vessels that assist in "feeding" cancer. Such molecules include the vascular endothelial growth factor (VEGF), the platelet derived growth factor (PDGF), the fibroblast growth factor (FGF), and the angiopoietin/Tie2 receptor complex. These proteins are key players in complex molecular pathways within the tumor cell and they have been in the spotlight of the development of anti-angiogenic molecules that may act as stand-alone therapeutics, or in concert with standard treatment regimes such as chemotherapy. The pathways involved in angiogenesis and molecules that have been developed in order to combat angiogenesis are described in this paper.


Asunto(s)
Neovascularización Patológica , Neoplasias Ováricas/patología , Inhibidores de la Angiogénesis/uso terapéutico , Femenino , Factores de Crecimiento de Fibroblastos/metabolismo , Humanos , Neoplasias Ováricas/tratamiento farmacológico , Neoplasias Ováricas/metabolismo , Factor de Crecimiento Derivado de Plaquetas/metabolismo , Receptor TIE-2/metabolismo , Transducción de Señal , Factor A de Crecimiento Endotelial Vascular/metabolismo
8.
Ther Adv Med Oncol ; 15: 17588359231208960, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38028141

RESUMEN

Despite the developments of the last few years, metastatic castration-resistant prostate cancer (PC) remains a deadly disease. Until recently, almost all guidelines recommended magnetic resonance imaging (MRI) or computed tomography (CT) for the initial staging and local/systematic recurrence. Positron emission tomography/computed tomography (PET/CT) with prostate-specific membrane antigen (PSMA) at the present stage, emerged as a promising diagnostic imaging tool for PC. PSMA PET/CT alone or in combination with multiparametric magnetic resonance imaging (mpMRI) can improve the detection of clinically significant PC, especially for Prostate Imaging Reporting & Data System (PI-RADS) = 3 lesions. In addition, PSMA PET/CT is more accurate than CT and bone scan for intermediate to high-risk disease at the initial staging. Contrariwise, a negative PET is not useful for surgeons to avoid a pelvic nodal dissection. PET-PSMA imaging is appropriate for prostate-specific antigen (PSA) persistence or PSA rise from undetectable level after radical prostatectomy or for PSA rise above nadir after definitive radiotherapy. Also, it is recommended for patients fit for curative salvage treatment. It should be noted that in patients, candidates for radionuclide therapy with Lutetium-177 (117Lu), a PSMA strong expression from PET/CT at baseline is considered necessary. This review summarizes the evolution of PSMA PET/CT and its current role in the management of PC.

9.
Int J Cancer ; 130(4): 857-64, 2012 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-21445972

RESUMEN

The role of vascular endothelial growth factor (VEGF) in tumor angiogenesis is well characterized; nevertheless, it is also a key element in promoting tumor evasion of the immune system by downregulating dendritic cell maturation and thus T cell activation. We sought to investigate the possible direct effect of VEGF on T cell activation and through which type of VEGF receptor (VEGFR) it exerts this effect. Circulating T cells from healthy donors and ovarian cancer patients were expanded in cultures with anti-CD3 and IL-2 with or without VEGF for 14 days, and the number of T cells was assessed. Cultured T cells were also tested for their cytotoxic activity in a standard 4-hr (51) Cr-release assay, and the expression of VEGFRs 1, 2 and 3 was assayed by flow cytometry, immunocytochemistry and Western blotting. To assess the ability of activated T cells to secrete VEGF, levels in culture supernatants were measured by enzyme linked immunosorbent assay. The addition of VEGF in cultures significantly reduced T cell proliferation in a dose-dependent manner. Protein expression studies demonstrated that CD3(+) T cells express VEGFR-2 on their surface upon activation. Experiments with anti-VEGFR-2 antibodies showed that the direct suppressive effect of VEGF on T cell proliferation is mediated by VEGFR-2. We also showed that VEGF significantly reduced the cytotoxic activity of T cells and that activated T cells secrete VEGF in the culture environment. Overall, our study shows that T cells secret VEGF and expresses VEGFR-2 upon activation. VEGF directly suppresses T cell activation via VEGF receptor type 2.


Asunto(s)
Activación de Linfocitos , Neoplasias Ováricas/inmunología , Linfocitos T/inmunología , Factor A de Crecimiento Endotelial Vascular/fisiología , Receptor 2 de Factores de Crecimiento Endotelial Vascular/fisiología , Células Cultivadas , Citotoxicidad Inmunológica , Femenino , Humanos , Receptor 2 de Factores de Crecimiento Endotelial Vascular/análisis
10.
Int J Gynecol Pathol ; 31(4): 319-27, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-22653344

RESUMEN

Replication protein A (RPA) is an ssDNA-binding protein required for the initiation of DNA replication and the stabilization of ssDNA. Collaboration with several molecules, that is, the MCM2-7 complex, has been suggested to be imperative for its multifaceted role. In this study, we investigated the immunohistochemical expression of the RPA2 subunit in correlation with the MCM-2 and MCM-5 and Ki67 index, and assessed its prognostic significance in 76 patients with nonearly ovarian adenocarcinomas, the majority of whom had a serous histotype. RPA2 protein expression was observed in all cases, whereas the staining intensity varied from weak to strong. RPA2 expression was correlated with the tumor stage in the entire cohort and in serous tumors (P=0.0053 in both relationships). Moreover, RPA2 immunoexpression was positively correlated with MCM-2 (P=0.0001) and MCM-5 (P<0.0001) expression, but was unrelated to the Ki67 index (P>0.10). In multivariate survival analysis, RPA2 expression emerged as an independent predictor of adverse outcome (P<0.0001) along with tumor histologic grade. RPA2 remained an independent predictor of survival (P=0.002) even after adjustment for MCM-2 and MCM-5 expression and when analysis was restricted to serous carcinomas (P=0.004). Our results further support the interrelation of RPA2 protein with MCM-2 and MCM-5 in OCs. Moreover, RPA2 protein may play an important role in ovarian tumorigenesis, and may serve as a useful independent molecular marker for stratifying patients with OC in terms of prognosis.


Asunto(s)
Adenocarcinoma/metabolismo , Adenocarcinoma/patología , Biomarcadores de Tumor/metabolismo , Neoplasias Ováricas/metabolismo , Neoplasias Ováricas/patología , Proteínas de Ciclo Celular/metabolismo , Estudios de Cohortes , Proteínas de Unión al ADN/metabolismo , Femenino , Humanos , Inmunohistoquímica , Estimación de Kaplan-Meier , Antígeno Ki-67/metabolismo , Componente 2 del Complejo de Mantenimiento de Minicromosoma , Componente 7 del Complejo de Mantenimiento de Minicromosoma , Proteínas Nucleares/metabolismo , Proteína de Replicación A/metabolismo , Estudios Retrospectivos , Análisis de Supervivencia
11.
Cancer ; 117(24): 5500-8, 2011 Dec 15.
Artículo en Inglés | MEDLINE | ID: mdl-21638278

RESUMEN

BACKGROUND: Urothelial carcinoma of the upper urinary tract (UUT-UC) was a rare, aggressive urologic cancer with a propensity for multifocality, local recurrence, and metastasis. High-risk patients had poor outcomes. Because of the rarity of these tumors, randomized clinical trials and data regarding adjuvant chemotherapy in locally advanced tumors are currently unavailable. Our objective was to assess the effect of adjuvant chemotherapy and the impact of potential prognostic factors on survival in high-risk, postsurgical UUT-UC patients. METHODS: Using a multi-institutional, international retrospective database, identified were 627 patients with high risk UUT-UCs (pT3N0, pT4N0 and/or N+ and/or M+) who underwent surgical removal. Only patients who received adjuvant chemotherapy were included. RESULTS: Overall, 140 patients (22.6%) with a median age of 67 years were included. The median follow-up was 22.5 months. The 5-year, overall survival for the entire cohort was 43%, the 5-year recurrence-free survival was 54%, and metastasis-free survival was 53% at 5 years. Positive surgical margins were an independent prognostic factor for recurrence (P = .06), cancer-specific mortality (P = .05), and overall mortality (P = .02) of any cause. Adjuvant chemotherapy was not linked with overall or cancer-specific survival in patients with high risk disease (adjuvant chemotherapy [n = 140] vs no treatment [n = 487]) (P >.5). CONCLUSIONS: Adjuvant postoperative chemotherapy did not offer any significant benefit to overall survival in our population. Additional data were necessary, and studies enrolling patients at high risk in clinical trials investigating neoadjuvant chemotherapy in conjunction with chemotherapy should have been highly encouraged.


Asunto(s)
Carcinoma de Células Transicionales/tratamiento farmacológico , Neoplasias Urológicas/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Transicionales/patología , Carcinoma de Células Transicionales/cirugía , Quimioterapia Adyuvante , Cisplatino/administración & dosificación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Pronóstico , Estudios Retrospectivos , Análisis de Supervivencia , Resultado del Tratamiento , Neoplasias Urológicas/patología , Neoplasias Urológicas/cirugía
12.
Oncology ; 81(5-6): 365-71, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-22248920

RESUMEN

OBJECTIVE: We investigated the efficacy of risk-adapted adjuvant paclitaxel/carboplatin chemotherapy in early-stage ovarian carcinoma. METHODS: Fifty-three patients were treated according to the risk of relapse: patients with stages IA or IB or with grade 1 (low risk) received 4 cycles of paclitaxel and carboplatin; patients with IC/IIA and grade 2 or 3 (high risk) received 6 cycles of chemotherapy. The outcome was compared with that of 95 patients who were all treated with 4 cycles. RESULTS: Median follow-up was 88, 113 and 42 months for the whole cohort, non-risk-adapted and risk-adapted treatment, respectively. Five-year relapse-free and disease-specific survival was 86 and 93% for the whole population, 96 and 97% for low-risk and 81 and 91% for high-risk patients. Risk classification was the only significant prognostic factor for relapse-free (p = 0.011) and disease-specific survival (p = 0.039). Among high-risk patients, the administration of 6 cycles was associated with a significantly lower relapse rate after censoring events, which occurred beyond 2 years (3 vs. 18%; p = 0.013), but this difference was diminished at 5 years (23 vs. 25%; p = 0.797). CONCLUSIONS: Six cycles of chemotherapy reduced the risk of relapse within 2 years, but the benefit from two additional cycles beyond this time is questionable.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Carcinoma/tratamiento farmacológico , Neoplasias Ováricas/tratamiento farmacológico , Adulto , Anciano , Carboplatino/administración & dosificación , Carcinoma/patología , Carcinoma/cirugía , Quimioterapia Adyuvante , Estudios de Cohortes , Supervivencia sin Enfermedad , Esquema de Medicación , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia/tratamiento farmacológico , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/prevención & control , Estadificación de Neoplasias/métodos , Neoplasias Ováricas/patología , Paclitaxel/administración & dosificación , Pronóstico , Factores de Riesgo , Resultado del Tratamiento , Adulto Joven
13.
Eur J Cancer ; 126: 125-135, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31927213

RESUMEN

BACKGROUND: Overexpression of c-Myc is commonly seen in human ovarian cancers, and this could be a potentially novel therapeutic target for this disease. JQ1, a selective small-molecule BET (Bromodomain and extraterminal domain family) bromodomain (BRDs) inhibitor, has been found to suppress tumour progression in several cancer cell types. RESULTS: Using a panel of ovarian cancer cell lines and primary cell cultures from human ovarian cancer ascites, we demonstrated that JQ1 significantly suppressed cell proliferation and induced apoptosis in an ovarian cancer cell by targeting BRD4 and c-Μyc. In addition, JQ1 sensitized ovarian cancer cells to cisplatin, the most commonly used chemotherapeutic agent in ovarian cancer. Importantly, this effect was observed in ovarian cells, which exhibited resistance to cisplatin alone. Finally, we show that JQ1 interacts with the JAK-STAT signalling pathway, a pathway important in supporting ovarian cancer cell survival by suppressing or inducing genes involved in cell survival and apoptosis, respectively. CONCLUSION: Our data, taken together, suggest that JQ1 is an attractive antitumour candidate for further investigation in the treatment of ovarian cancer, as it associates with cell proliferation, apoptosis, and alterations in the JAK-STAT signalling pathway, especially in patients with a platinum-resistant profile or in patients with relapsed disease.


Asunto(s)
Azepinas/farmacología , Proliferación Celular/efectos de los fármacos , Cisplatino/farmacología , Quinasas Janus/metabolismo , Factores de Transcripción STAT/metabolismo , Transducción de Señal/efectos de los fármacos , Triazoles/farmacología , Antineoplásicos/farmacología , Apoptosis/efectos de los fármacos , Apoptosis/genética , Proteínas de Ciclo Celular/genética , Proteínas de Ciclo Celular/metabolismo , Línea Celular Tumoral , Proliferación Celular/genética , Supervivencia Celular/efectos de los fármacos , Supervivencia Celular/genética , Femenino , Regulación Neoplásica de la Expresión Génica/efectos de los fármacos , Humanos , Quinasas Janus/genética , Neoplasias Ováricas/genética , Neoplasias Ováricas/metabolismo , Neoplasias Ováricas/patología , Proteínas Proto-Oncogénicas c-myc/genética , Proteínas Proto-Oncogénicas c-myc/metabolismo , Factores de Transcripción STAT/genética , Transducción de Señal/genética , Factores de Transcripción/genética , Factores de Transcripción/metabolismo
14.
Eur Urol ; 77(2): 223-250, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31753752

RESUMEN

BACKGROUND: Although guidelines exist for advanced and variant bladder cancer management, evidence is limited/conflicting in some areas and the optimal approach remains controversial. OBJECTIVE: To bring together a large multidisciplinary group of experts to develop consensus statements on controversial topics in bladder cancer management. DESIGN: A steering committee compiled proposed statements regarding advanced and variant bladder cancer management which were assessed by 113 experts in a Delphi survey. Statements not reaching consensus were reviewed; those prioritised were revised by a panel of 45 experts prior to voting during a consensus conference. SETTING: Online Delphi survey and consensus conference. PARTICIPANTS: The European Association of Urology (EAU), the European Society for Medical Oncology (ESMO), experts in bladder cancer management. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Statements were ranked by experts according to their level of agreement: 1-3 (disagree), 4-6 (equivocal), and 7-9 (agree). A priori (level 1) consensus was defined as ≥70% agreement and ≤15% disagreement, or vice versa. In the Delphi survey, a second analysis was restricted to stakeholder group(s) considered to have adequate expertise relating to each statement (to achieve level 2 consensus). RESULTS AND LIMITATIONS: Overall, 116 statements were included in the Delphi survey. Of these statements, 33 (28%) achieved level 1 consensus and 49 (42%) achieved level 1 or 2 consensus. At the consensus conference, 22 of 27 (81%) statements achieved consensus. These consensus statements provide further guidance across a broad range of topics, including the management of variant histologies, the role/limitations of prognostic biomarkers in clinical decision making, bladder preservation strategies, modern radiotherapy techniques, the management of oligometastatic disease, and the evolving role of checkpoint inhibitor therapy in metastatic disease. CONCLUSIONS: These consensus statements provide further guidance on controversial topics in advanced and variant bladder cancer management until a time when further evidence is available to guide our approach. PATIENT SUMMARY: This report summarises findings from an international, multistakeholder project organised by the EAU and ESMO. In this project, a steering committee identified areas of bladder cancer management where there is currently no good-quality evidence to guide treatment decisions. From this, they developed a series of proposed statements, 71 of which achieved consensus by a large group of experts in the field of bladder cancer. It is anticipated that these statements will provide further guidance to health care professionals and could help improve patient outcomes until a time when good-quality evidence is available.


Asunto(s)
Neoplasias de la Vejiga Urinaria/terapia , Humanos , Cooperación Internacional , Estadificación de Neoplasias , Neoplasias de la Vejiga Urinaria/patología
15.
Int J Cancer ; 124(1): 103-8, 2009 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-18844223

RESUMEN

Wnt pathway signaling is crucial in many cancers and data indicate crosstalk with other key cancer pathways, however in urothelial carcinogenesis it has not been extensively studied. We searched for mutations in adenomatous polyposis coli (APC), a key regulator of the pathway, and studied b-catenin expression and interactions with the expression of other markers of apoptosis, angiogenesis, and proliferation in patients with invasive urothelial cancer. The mutation cluster region of APC was directly sequenced in 70 patients with muscle invasive disease who were treated with surgery and adjuvant chemotherapy. COX-2, p53, Ki67, and b-catenin were studied immunohistochemically and micro vessel density was quantified by CD105 expression. Single somatic amino-acid substitutions (missense) were found in 9 (13%) and frameshift deletions in 2 (3%) tumors, all located in regions adjacent to b-catenin binding sites. Patients having either APC missense mutations or b-catenin nuclear accumulation had less frequent COX-2 overexpression (24% vs. 76%, p = 0.043) and more frequent lymph node involvement (75% vs. 38%, p = 0.023). Patients with either APC mutations or b-catenin accumulation had shorter disease-free interval (13.4 vs. 28 months, p = 0.07), whereas in multivariate analysis they had shorter disease-specific survival (60.5 vs. 20.6 months, p = 0.048). Somatic APC missense mutations are not rare in advanced urothelial neoplasms. Either APC mutations and/or aberrant expression of b-catenin are associated with worse outcome. Further study of the role of the Wnt pathway, potential crosstalk with other pathways and potential candidate therapeutic targets in urothelial cancer is needed.


Asunto(s)
Proteína de la Poliposis Adenomatosa del Colon/genética , Carcinoma/genética , Núcleo Celular/metabolismo , Mutación , Neoplasias de la Vejiga Urinaria/genética , Urotelio/patología , Proteínas Wnt/metabolismo , beta Catenina/biosíntesis , Adulto , Anciano , Antineoplásicos/farmacología , Carboplatino/farmacología , Carcinoma/diagnóstico , Quimioterapia Adyuvante/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Paclitaxel/farmacología , Neoplasias de la Vejiga Urinaria/diagnóstico , Neoplasias de la Vejiga Urinaria/tratamiento farmacológico
16.
Onkologie ; 32(12): 758-61, 2009 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-20016239

RESUMEN

BACKGROUND: The most common sites of metastasis in prostate cancer include bone and regional lymph nodes followed by lung, liver, and brain. Peritoneal metastasis without skeletal involvement is extremely rare. CASE REPORT: We present herein a patient with hormone refractory prostate cancer with peritoneal metastasis accompanied by ascites but without bone metastasis. The patient initially experienced an excellent response to docetaxel-based chemotherapy. CONCLUSIONS: Prostate cancer can present with distant metastasis in unexpected sites. The lack of skeletal involvement does not exclude the possibility of distant metastases. The presence of ascites may indicate peritoneal disease which could be responsive to current standard chemotherapy.


Asunto(s)
Adenocarcinoma/diagnóstico , Adenocarcinoma/secundario , Ascitis/diagnóstico , Epiplón/patología , Neoplasias Peritoneales/secundario , Neoplasias de la Próstata/patología , Enfermedades Raras/diagnóstico , Anciano , Humanos , Masculino
17.
Expert Rev Pharmacoecon Outcomes Res ; 19(4): 491-501, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30417707

RESUMEN

Background:Metastatic RCC (mRCC) treatment has been revolutionized with 11 approved targeted agents. We report patterns of practice, outcomes and pharmacoeconomic analyses after the introduction of targeted therapy. Patients and methods: CRISIS was a retrospective multicenter study of mRCCpatients who received targeted therapy . Results were related to the start of 1st-line therapy, with a cut off at 1 January 2011 in order to depict the impact of increased availability of effective options. Results: 164 patients, were included. 70.1% and 44.5% received 2nd and 3rd-line therapy, respectively. More patients were treated in 2nd-line after 1 January 2011. After a median follow-up of 55.1 months, median progression-free (PFS) and overall survival (OS) were 10.7 (95% confidence intervals [CI]: 8.3-13.7), 7.3 (95% CI: 5.1-8.6), 5.8 (95% CI: 3.8-7.8) and 34 (95% CI: 28.5-39.8), 22.4 (95% CI: 16-32.1), 18.3 (95% CI: 12.4-26.4) months for first, second and third line, respectively. Efficacy of sunitinib and pazopanib in 1st-line were similar. The mean total cost/patient was 35,012.2 Euros (standard deviation [SD]: 28,971.5). Conclusions: Our study confirms previous real-world data suggesting that continuing advances in the treatment of mRCC produce favorable outcomes in everyday practice. Pharmacoeconomic analyses are important for cost-effective utilization of emerging novel therapies.


Asunto(s)
Carcinoma de Células Renales/tratamiento farmacológico , Economía Farmacéutica , Neoplasias Renales/tratamiento farmacológico , Terapia Molecular Dirigida/métodos , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos/administración & dosificación , Antineoplásicos/economía , Carcinoma de Células Renales/economía , Análisis Costo-Beneficio , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Grecia , Humanos , Indazoles , Neoplasias Renales/economía , Masculino , Persona de Mediana Edad , Terapia Molecular Dirigida/economía , Metástasis de la Neoplasia , Pautas de la Práctica en Medicina/estadística & datos numéricos , Pirimidinas/administración & dosificación , Pirimidinas/economía , Estudios Retrospectivos , Sulfonamidas/administración & dosificación , Sulfonamidas/economía , Sunitinib/administración & dosificación , Sunitinib/economía , Tasa de Supervivencia
18.
Haematologica ; 92(4): 546-9, 2007 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-17488666

RESUMEN

The impact of high dose dexamethasone containing regimens with or without the novel agents thalidomide and bortezomib on the reversal of renal failure (RF) was evaluated in 41 consecutive newly diagnosed patients with multiple myeloma (MM) treated in a single institution. RF was reversed in 73% of all patients within a median of 1.9 months. In patients treated with dexamethasone and novel agents (thalidomide and/or bortezomib) the reversibility rate was 80% within a median of 0.8 months. Severe RF and significant Bence Jones proteinuria were associated with a lower probability of RF reversal. Patients who responded to treatment achieved RF reversal more often than in those who did not (85% versus 56%, p=0.046). In conclusion, RF is reversible in the majority of newly diagnosed MM patients treated with high-dose dexamethasone containing regimens. The addition of novel agents induces a more rapid RF reversal.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Fallo Renal Crónico/tratamiento farmacológico , Mieloma Múltiple/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Proteína de Bence Jones/orina , Ácidos Borónicos/administración & dosificación , Bortezomib , Dexametasona/administración & dosificación , Doxorrubicina/administración & dosificación , Femenino , Humanos , Hipercalcemia/tratamiento farmacológico , Hipercalcemia/etiología , Fallo Renal Crónico/etiología , Fallo Renal Crónico/orina , Masculino , Melfalán/administración & dosificación , Persona de Mediana Edad , Mieloma Múltiple/complicaciones , Proteínas de Mieloma/análisis , Proteinuria/etiología , Pirazinas/administración & dosificación , Talidomida/administración & dosificación , Resultado del Tratamiento , Vincristina/administración & dosificación
19.
Oncology ; 73(5-6): 290-7, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-18477854

RESUMEN

OBJECTIVE: We evaluated safety and efficacy of first-line gemcitabine/carboplatin in unfit-for-cisplatin patients with advanced urothelial carcinoma and the effect on the quality of life and functional status of elderly patients (aged >70). METHODS: Unfit patients had ECOG performance status (PS) > or =2, creatinine clearance <50 ml/min or comorbidities precluding cisplatin administration. Carboplatin at area under the curve of 2.5 and gemcitabine 1,250 mg/m(2) were administered biweekly. Elderly patients were stratified into group 1 (no activities of daily living (ADL) or instrumental ADL dependency and no comorbidities), group 2 (instrumental ADL dependency or 1-2 comorbidities) and group 3 (ADL dependency or > or =2 comorbidities). RESULTS: Thirty-four patients were enrolled: 68% had PS 2-3, 69% a creatinine clearance <50 ml/min and 65% had 1 or more comorbidities. There were 3 cases of grade 3 toxicity (9%). Response rate was 24% [95% confidence interval (CI) 11-41]. Median follow-up was 8 months, median progression-free survival 4.4 months (95% CI 1.03-7.75) and median overall survival 9.8 months (95% CI 4.7-14.9). Patients in geriatric assessment groups 1 and 2 had a significantly longer median progression-free survival compared to group 3 [6.9 months (95% CI 1.3-12.4) vs. 1.9 months (95% CI 0.5-3.2); p = 0.005]. CONCLUSION: First-line gemcitabine/carboplatin combination is active in unfit-for-cisplatin patients with advanced urothelial carcinoma. Pretreatment quality of life and geriatric assessment may be useful in selecting patients likely to benefit from this treatment.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Transicionales/tratamiento farmacológico , Calidad de Vida , Neoplasias Urológicas/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carboplatino/administración & dosificación , Carcinoma de Células Transicionales/mortalidad , Carcinoma de Células Transicionales/patología , Cisplatino/efectos adversos , Creatinina/metabolismo , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Esquema de Medicación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Selección de Paciente , Análisis de Supervivencia , Resultado del Tratamiento , Neoplasias Urológicas/mortalidad , Neoplasias Urológicas/patología , Gemcitabina
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA