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1.
BMC Cancer ; 19(1): 990, 2019 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-31646981

RESUMEN

BACKGROUND: Biliary tract cancer (BTC) has a high mortality. Primary diagnosis is frequently delayed due to mostly unspecific symptoms, resulting in a high number of advanced cases at the time of diagnosis. Advanced BTCs are in principle chemotherapy sensitive as determined by improved disease control, survival and quality of life (QoL). However, median OS does not exceed 11.7 months with the current standard of care gemcitabine plus cisplatin. Thereby, novel drug formulations like nanoliposomal-irinotecan (nal-IRI) in combination with 5- fluorouracil (5-FU)/leucovorin may have the potential to improve therapeutic outcomes in this disease. METHODS: NIFE is an interventional, prospective, randomized, controlled, open label, two-sided phase II study. Within the study, 2 × 46 patients with locally advanced, non-resectable or metastatic BTC are to be enrolled by two stage design of Simon. Data analysis will be done unconnected for both arms. Patients are allocated in two arms: Arm A (experimental intervention) nal-IRI mg/m2, 46 h infusion)/5-FU (2400 mg/m2, 46 h infusion)/leucovorin (400 mg/m2, 0.5 h infusion) d1 on 14 day-cycles; Arm B (standard of care) cisplatin (25 mg/m2, 1 h infusion)/gemcitabine (1000 mg/m2, 0.5 h infusion) d1 and d8 on 21 day-cycles. The randomization (1:1) is stratified for tumor site (intrahepatic vs. extrahepatic biliary tract), disease stage (advanced vs. metastatic), age (≤70 vs. > 70 years), sex (male vs. female) and WHO performance score (ECOG 0 vs. ECOG 1). Primary endpoint of the study is the progression free survival (PFS) rate at 4 months after randomization by an intention-to-treat analysis in each of the groups. Secondary endpoints are the overall PFS rate, the 3-year overall survival rate, the disease control rate after 2 months, safety and patient related outcome with quality of life. The initial assessment of tumor resectability for locally advanced BTCs is planned to be reviewed retrospectively by a central surgical board. Exploratory objectives aim at establishing novel biomarkers and molecular signatures to predict response. The study was initiated January 2018 in Germany. DISCUSSION: The NIFE trial evaluates the potential of a nanoliposomal-irinotecan/5-FU/leucovorin combination in the first line therapy of advanced BTCs and additionally offers a unique chance for translational research. TRIAL REGISTRATION: Clinicaltrials.gov NCT03044587. Registration Date February 7th 2017.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias del Sistema Biliar/tratamiento farmacológico , Fluorouracilo/uso terapéutico , Irinotecán/uso terapéutico , Leucovorina/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neoplasias del Sistema Biliar/patología , Cisplatino/administración & dosificación , Cisplatino/uso terapéutico , Ensayos Clínicos Fase II como Asunto , Desoxicitidina/administración & dosificación , Desoxicitidina/análogos & derivados , Desoxicitidina/uso terapéutico , Supervivencia sin Enfermedad , Femenino , Fluorouracilo/administración & dosificación , Humanos , Irinotecán/administración & dosificación , Irinotecán/efectos adversos , Irinotecán/química , Leucovorina/administración & dosificación , Masculino , Fosfolípidos/química , Supervivencia sin Progresión , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Gemcitabina
2.
Regul Pept ; 140(1-2): 5-11, 2007 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-17196676

RESUMEN

The present study was designed to evaluate, in Wistar rats, the effect of high- or low-salt diet on the hemodynamic parameters and on the renal and lumbar sympathetic nerve activity. The renal gene expression of the renin angiotensin system components was also evaluated, aiming to find some correlation between salt intake, sodium homeostasis and blood pressure increase. Male Wistar rats received low (0.06% Na, TD 92141-Harlan Teklad), a normal (0.5% Na, TD 92140), or a high-salt diet (3.12% Na, TD 92142) from weaning to adulthood. Hemodynamic parameters such as cardiac output and total peripheral resistance, and the renal and lumbar sympathetic nerve activity were determined (n=45). Plasma renin activity, plasma and renal content of angiotensin (ANG) I and II, and the renal mRNA expression of angiotensinogen, renin, AT1 and AT2 receptors were also measured (n=24). Compared to normal- and low-salt diet-, high-salt-treated rats were hypertensive and developed an increase (P<0.05) in total peripheral resistance and lumbar sympathetic nerve activity. A decrease in renal renin and angiotensinogen-mRNAs and in plasma ANG II and plasma renin activity was also found in salt overloaded animals. The renal sympathetic nerve activity was higher (P<0.05) in low- compared to high-salt-treated rats, and was associated with an increase (P<0.05) in renal ANG I and II and with a decrease (P<0.05) in AT2 renal mRNA. Plasma ANG I and II and plasma renin activity were higher in low- than in normal-salt rats. Our results show that increased blood pressure is associated with increases in lumbar sympathetic nerve activity and total peripheral resistance in high-salt-treated rats. However, in low-salt-treated rats an increase in the renal sympathetic nerve was correlated with an increase in the renal content of ANG I and II and with a decrease in AT2 renal mRNA. These changes are probably in favor of the antinatriuretic response and the sodium homeostasis in the low-salt group.


Asunto(s)
Angiotensinógeno/genética , Angiotensinas/genética , Cloruro de Sodio Dietético/farmacología , Sistema Nervioso Simpático/efectos de los fármacos , Angiotensina I/sangre , Angiotensina I/genética , Angiotensina I/metabolismo , Angiotensina II/sangre , Angiotensina II/genética , Angiotensina II/metabolismo , Angiotensinógeno/sangre , Angiotensinógeno/metabolismo , Angiotensinas/sangre , Angiotensinas/metabolismo , Animales , Regulación de la Expresión Génica/efectos de los fármacos , Hipertensión/inducido químicamente , Hipertensión/fisiopatología , Riñón/efectos de los fármacos , Riñón/inervación , Riñón/metabolismo , Masculino , ARN Mensajero/genética , ARN Mensajero/metabolismo , Ratas , Ratas Wistar , Renina/sangre , Renina/genética , Renina/metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Sistema Nervioso Simpático/fisiología
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