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1.
JAMA ; 311(17): 1750-9, 2014 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-24794368

RESUMEN

IMPORTANCE: Biliary atresia is the most common cause of end-stage liver disease in children. Controversy exists as to whether use of steroids after hepatoportoenterostomy improves clinical outcome. OBJECTIVE: To determine whether the addition of high-dose corticosteroids after hepatoportoenterostomy is superior to surgery alone in improving biliary drainage and survival with the native liver. DESIGN, SETTING, AND PATIENTS: The multicenter, double-blind Steroids in Biliary Atresia Randomized Trial (START) was conducted in 140 infants (mean age, 2.3 months) between September 2005 and February 2011 in the United States; follow-up ended in January 2013. INTERVENTIONS: Participants were randomized to receive intravenous methylprednisolone (4 mg/kg/d for 2 weeks) and oral prednisolone (2 mg/kg/d for 2 weeks) followed by a tapering protocol for 9 weeks (n = 70) or placebo (n = 70) initiated within 72 hours of hepatoportoenterostomy. MAIN OUTCOMES AND MEASURES: The primary end point (powered to detect a 25% absolute treatment difference) was the percentage of participants with a serum total bilirubin level of less than 1.5 mg/dL with his/her native liver at 6 months posthepatoportoenterostomy. Secondary outcomes included survival with native liver at 24 months of age and serious adverse events. RESULTS: The proportion of participants with improved bile drainage was not statistically significantly improved by steroids at 6 months posthepatoportoenterostomy (58.6% [41/70] of steroids group vs 48.6% [34/70] of placebo group; adjusted relative risk, 1.14 [95% CI, 0.83 to 1.57]; P = .43). The adjusted absolute risk difference was 8.7% (95% CI, -10.4% to 27.7%). Transplant-free survival was 58.7% in the steroids group vs 59.4% in the placebo group (adjusted hazard ratio, 1.0 [95% CI, 0.6 to 1.8]; P = .99) at 24 months of age. The percentage of participants with serious adverse events was 81.4% [57/70] of the steroids group and 80.0% [56/70] of the placebo group (P > .99); however, participants receiving steroids had an earlier time of onset of their first serious adverse event by 30 days posthepatoportoenterostomy (37.2% [95% CI, 26.9% to 50.0%] of steroids group vs 19.0% [95% CI, 11.5% to 30.4%] of placebo group; P = .008). CONCLUSIONS AND RELEVANCE: Among infants with biliary atresia who have undergone hepatoportoenterostomy, high-dose steroid therapy following surgery did not result in statistically significant treatment differences in bile drainage at 6 months, although a small clinical benefit could not be excluded. Steroid treatment was associated with earlier onset of serious adverse events in children with biliary atresia. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT00294684.


Asunto(s)
Corticoesteroides/administración & dosificación , Atresia Biliar/tratamiento farmacológico , Atresia Biliar/cirugía , Metilprednisolona/administración & dosificación , Portoenterostomía Hepática , Prednisolona/administración & dosificación , Administración Oral , Corticoesteroides/efectos adversos , Bilirrubina/sangre , Método Doble Ciego , Drenaje/métodos , Femenino , Humanos , Lactante , Infusiones Intravenosas , Masculino , Metilprednisolona/efectos adversos , Prednisolona/efectos adversos , Análisis de Supervivencia , Resultado del Tratamiento
2.
Oncotarget ; 4(6): 899-910, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23765188

RESUMEN

BACKGROUND: Radioimmunotherapy (RIT) has been used to treat relapsed/refractory CD20+ Non-Hodgkin lymphoma (NHL). Myeloablative anti-CD20 RIT followed by autologous stem cell infusion (ASCT) enables high radiation doses to lymphoma sites. We performed a phase I/II trial to assess feasibility and survival. METHODS: Twenty-three patients with relapsed/refractory NHL without complete remission (CR) to salvage chemotherapy were enrolled to evaluate RIT with Iodine-131 labelled rituximab (131I-rituximab) in a myeloablative setting. Biodistribution and dosimetric studies were performed to determine 131I activity required to induce a total body dose of 21-27Gy to critical organs. In 6/23 patients RIT was combined with high-dose chemotherapy. 8/23 patients received a sequential high-dose chemotherapy with a second ASCT. The median follow-up is 9.5 years. RESULTS: 6.956-19.425GBq of 131I was delivered to achieve the limiting organ dose to lungs or kidneys. No grade III/IV non-hematologic toxicity was seen with RIT alone. Significant grade III/IV toxicity (mucositis, fever, infection, one therapy related death) was observed in patients treated with RIT combined with high-dose chemotherapy. The overall response rate was 87% (64% CR). The median progression-free (PFS) and overall survival (OS) is 47.5 and 101.5 months. An international prognostic index score >1 was predictive for OS. CONCLUSION: Myeloablative RIT with 131I-rituximab followed by ASCT is feasible, well-tolerated and effective in high risk CD20+ NHL. Combination of RIT and high-dose chemotherapy increased toxicity significantly. Long-term results for PFS and OS are encouraging.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Linfoma de Células B/terapia , Radioinmunoterapia/métodos , Adulto , Anciano , Anticuerpos Monoclonales de Origen Murino , Terapia Combinada , Supervivencia sin Enfermedad , Femenino , Humanos , Radioisótopos de Yodo/administración & dosificación , Linfoma de Células B/patología , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/terapia , Trasplante de Células Madre de Sangre Periférica/métodos , Radiofármacos/administración & dosificación , Factores de Riesgo , Rituximab , Análisis de Supervivencia , Trasplante Autólogo/métodos
3.
Pediatrics ; 130(3): e607-14, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22891232

RESUMEN

OBJECTIVE: Cholestasis predisposes to fat-soluble vitamin (FSV) deficiencies. A liquid multiple FSV preparation made with tocopheryl polyethylene glycol-1000 succinate (TPGS) is frequently used in infants with biliary atresia (BA) because of ease of administration and presumed efficacy. In this prospective multicenter study, we assessed the prevalence of FSV deficiency in infants with BA who received this FSV/TPGS preparation. METHODS: Infants received FSV/TPGS coadministered with additional vitamin K as routine clinical care in a randomized double-blinded, placebo-controlled trial of corticosteroid therapy after hepatoportoenterostomy (HPE) for BA (identifier NCT 00294684). Levels of FSV, retinol binding protein, total serum lipids, and total bilirubin (TB) were measured 1, 3, and 6 months after HPE. RESULTS: Ninety-two infants with BA were enrolled in this study. Biochemical evidence of FSV insufficiency was common at all time points for vitamin A (29%-36% of patients), vitamin D (21%-37%), vitamin K (10%-22%), and vitamin E (16%-18%). Vitamin levels were inversely correlated with serum TB levels. Biochemical FSV insufficiency was much more common (15%-100% for the different vitamins) in infants whose TB was ≥2 mg/dL. At 3 and 6 months post HPE, only 3 of 24 and 0 of 23 infants, respectively, with TB >2 mg/dL were sufficient in all FSV. CONCLUSIONS: Biochemical FSV insufficiency is commonly observed in infants with BA and persistent cholestasis despite administration of a TPGS containing liquid multiple FSV preparation. Individual vitamin supplementation and careful monitoring are warranted in infants with BA, especially those with TB >2 mg/dL.


Asunto(s)
Avitaminosis/tratamiento farmacológico , Atresia Biliar/complicaciones , Suplementos Dietéticos , Vitamina E/análogos & derivados , Vitamina K/uso terapéutico , Avitaminosis/sangre , Avitaminosis/etiología , Atresia Biliar/cirugía , Bilirrubina/sangre , Método Doble Ciego , Femenino , Humanos , Lactante , Masculino , Polietilenglicoles/uso terapéutico , Portoenterostomía Hepática , Cuidados Posoperatorios , Proteínas de Unión al Retinol/análisis , Vitamina A/sangre , Vitamina D/análogos & derivados , Vitamina D/sangre , Vitamina E/sangre , Vitamina E/uso terapéutico , alfa-Tocoferol/sangre
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