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1.
Alzheimers Dement ; 20(5): 3649-3656, 2024 05.
Artículo en Inglés | MEDLINE | ID: mdl-38480678

RESUMEN

Prior authorization criteria for Federal Drug Administration (FDA) approved immunotherapeutics, among the class of anti-amyloid monoclonal antibodies (mAbs), established by state drug formulary committees, are tailored for adults with late-onset Alzheimer's disease. This overlooks adults with Down syndrome (DS), who often experience dementia at a younger age and with different diagnostic assessment outcomes. This exclusion may deny DS adults access to potential disease-modifying treatments. To address this issue, an international expert panel convened to establish adaptations of prescribing criteria suitable for DS patients and parameters for access to Centers for Medicare & Medicaid Services (CMS) registries. The panel proposed mitigating disparities by modifying CMS and payer criteria to account for younger onset age, using alternative language and assessment instruments validated for cognitive decline in the DS population. The panel also recommended enhancing prescribing clinicians' diagnostic capabilities for DS and initiated awareness-raising activities within healthcare organizations. These efforts facilitated discussions with federal officials, aimed at achieving equity in access to anti-amyloid immunotherapeutics, with implications for national authorities worldwide evaluating these and other new disease-modifying therapeutics for Alzheimer's disease.


Asunto(s)
Síndrome de Down , Humanos , Estados Unidos , Enfermedad de Alzheimer/tratamiento farmacológico , Adulto , Anticuerpos Monoclonales/uso terapéutico , Inmunoterapia/métodos
2.
Nurs Crit Care ; 28(5): 781-788, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-36575807

RESUMEN

Focused ultrasound can be used to rapidly diagnose COVID-19 disease, assess disease severity, and inform management of COVID-19 and associated pathologies, reducing radiation exposure from other imaging modalities and minimizing spread of infection. Ultrasound examinations performed by trained nurses in the intensive care unit (ICU) enable more patients to receive these assessments. This case series evaluates the use of nurse-led focused cardiac and lung ultrasound for clinical management of ICU patients with COVID-19. We describe common pathophysiological findings and how findings were used to inform clinical decision-making. An ultrasound trained ICU nurse performed Focused Ultrasound in Intensive Care (FUSIC) cardiac and lung scans enabling calculation of a lung severity score on adult ICU patients with a confirmed COVID-19 diagnosis in a single-centre setting. Fifteen scans were performed on 15 patients. Thirteen (87%) patients had normal left ventricular function; 12 (80%) normal right ventricular function. All 15 (100%) scans identified abnormal lung findings including irregular thickened pleura, B-lines, sub-pleural consolidation and hepatization. Worse lung severity scores were correlated with higher Acute Physiology and Chronic Health Evaluation (APACHE II) scores (r = 0.70; p = .003). Of the 15 scans, 10 (67%) identified abnormal pathology contributing to a change in clinical management. This included targeted fluid removal (4, 27%), change in respiratory management (3, 20%) and need for formal echocardiographic assessment (3, 20%). Findings from five (33%) scans required no intervention. This case series demonstrates nurse-led ultrasound could be a useful adjunct in the management of the COVID-19 patient.


Asunto(s)
COVID-19 , Adulto , Humanos , COVID-19/complicaciones , Sistemas de Atención de Punto , Enfermedad Crítica , Prueba de COVID-19 , Rol de la Enfermera , Unidades de Cuidados Intensivos , Cuidados Críticos/métodos
3.
Am J Med Genet A ; 188(11): 3331-3342, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35971781

RESUMEN

TAB2 is a gene located on chromosome 6q25.1 and plays a key role in development of the heart. Existing literature describes congenital heart disease as a common recognized phenotype of TAB2 gene variants, with evidence of a distinct syndromic phenotype also existing beyond this. Here we describe 14 newly identified individuals with nine novel, pathogenic TAB2 variants. The majority of individuals were identified through the Deciphering Developmental Disorders study through trio whole exome sequencing. Eight individuals had de novo variants, the other six individuals were found to have maternally inherited, or likely maternally inherited, variants. Five individuals from the same family were identified following cardiac disease gene panel in the proband and subsequent targeted familial gene sequencing. The clinical features of this cohort were compared to the existing literature. Common clinical features include distinctive facial features, growth abnormalities, joint hypermobility, hypotonia, and developmental delay. Newly identified features included feeding difficulties, sleep problems, visual problems, genitourinary abnormality, and other anatomical variations. Here we report 14 new individuals, including novel TAB2 variants, in order to expand the emerging syndromic clinical phenotype and provide further genotype-phenotype correlation.


Asunto(s)
Cardiopatías Congénitas , Discapacidad Intelectual , Proteínas Adaptadoras Transductoras de Señales/genética , Niño , Discapacidades del Desarrollo/genética , Estudios de Asociación Genética , Cardiopatías Congénitas/genética , Humanos , Discapacidad Intelectual/genética , Fenotipo , Secuenciación del Exoma
4.
J Natl Compr Canc Netw ; 20(2): 160-166, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35130494

RESUMEN

BACKGROUND: Most safety and efficacy trials of the SARS-CoV-2 vaccines excluded patients with cancer, yet these patients are more likely than healthy individuals to contract SARS-CoV-2 and more likely to become seriously ill after infection. Our objective was to record short-term adverse reactions to the COVID-19 vaccine in patients with cancer, to compare the magnitude and duration of these reactions with those of patients without cancer, and to determine whether adverse reactions are related to active cancer therapy. PATIENTS AND METHODS: A prospective, single-institution observational study was performed at an NCI-designated Comprehensive Cancer Center. All study participants received 2 doses of the Pfizer BNT162b2 vaccine separated by approximately 3 weeks. A report of adverse reactions to dose 1 of the vaccine was completed upon return to the clinic for dose 2. Participants completed an identical survey either online or by telephone 2 weeks after the second vaccine dose. RESULTS: The cohort of 1,753 patients included 67.5% who had a history of cancer and 12.0% who were receiving active cancer treatment. Local pain at the injection site was the most frequently reported symptom for all respondents and did not distinguish patients with cancer from those without cancer after either dose 1 (39.3% vs 43.9%; P=.07) or dose 2 (42.5% vs 40.3%; P=.45). Among patients with cancer, those receiving active treatment were less likely to report pain at the injection site after dose 1 compared with those not receiving active treatment (30.0% vs 41.4%; P=.002). The onset and duration of adverse events was otherwise unrelated to active cancer treatment. CONCLUSIONS: When patients with cancer were compared with those without cancer, few differences in reported adverse events were noted. Active cancer treatment had little impact on adverse event profiles.


Asunto(s)
COVID-19 , Neoplasias , Vacuna BNT162 , Vacunas contra la COVID-19 , Humanos , Neoplasias/tratamiento farmacológico , Estudios Prospectivos , ARN Mensajero , SARS-CoV-2
5.
Perfusion ; 37(5): 526-529, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-34053349

RESUMEN

Harlequin Syndrome (also known as North-South Syndrome) is a complication of veno-arterial extracorporeal membrane oxygenation (V-A ECMO) that can occur when left ventricular function starts to recover. While most commonly due to continued impaired gas exchange in the lungs, we present a case caused by right ventricular dysfunction, successfully managed by conversion of the ECMO circuit to a veno-veno-arterial (VV-A) configuration.


Asunto(s)
Oxigenación por Membrana Extracorpórea , Hipohidrosis , Enfermedades del Sistema Nervioso Autónomo , Rubor , Ventrículos Cardíacos , Humanos
6.
Am J Med Genet A ; 185(11): 3446-3458, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34436830

RESUMEN

The study aimed at widening the clinical and genetic spectrum of ASXL3-related syndrome, a neurodevelopmental disorder, caused by truncating variants in the ASXL3 gene. In this international collaborative study, we have undertaken a detailed clinical and molecular analysis of 45 previously unpublished individuals with ASXL3-related syndrome, as well as a review of all previously published individuals. We have reviewed the rather limited functional characterization of pathogenic variants in ASXL3 and discuss current understanding of the consequences of the different ASXL3 variants. In this comprehensive analysis of ASXL3-related syndrome, we define its natural history and clinical evolution occurring with age. We report familial ASXL3 pathogenic variants, characterize the phenotype in mildly affected individuals and discuss nonpenetrance. We also discuss the role of missense variants in ASXL3. We delineate a variable but consistent phenotype. The most characteristic features are neurodevelopmental delay with consistently limited speech, significant neuro-behavioral issues, hypotonia, and feeding difficulties. Distinctive features include downslanting palpebral fissures, hypertelorism, tubular nose with a prominent nasal bridge, and low-hanging columella. The presented data will inform clinical management of individuals with ASXL3-related syndrome and improve interpretation of new ASXL3 sequence variants.


Asunto(s)
Discapacidades del Desarrollo/genética , Predisposición Genética a la Enfermedad , Trastornos del Neurodesarrollo/genética , Factores de Transcripción/genética , Adolescente , Adulto , Niño , Preescolar , Discapacidades del Desarrollo/epidemiología , Discapacidades del Desarrollo/fisiopatología , Femenino , Variación Genética/genética , Humanos , Hipertelorismo/genética , Hipertelorismo/fisiopatología , Discapacidad Intelectual/genética , Discapacidad Intelectual/fisiopatología , Masculino , Hipotonía Muscular/genética , Hipotonía Muscular/fisiopatología , Mutación/genética , Trastornos del Neurodesarrollo/epidemiología , Trastornos del Neurodesarrollo/fisiopatología , Fenotipo , Adulto Joven
7.
J Thromb Thrombolysis ; 52(1): 272-280, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34143384

RESUMEN

In this prospective, 3-arm, repeated-measure multicenter investigation in 280 patients with cardiovascular risk factors, platelet aggregation was measured with the novel AggreGuide A-100 ADP (A-100 ADP) and VerifyNow (VN)-PRU assays at baseline, and after United States Food and Drug Administration approved loading and 7 days maintenance doses of clopidogrel (n = 94), prasugrel (n = 43) or ticagrelor, (n = 143). Based on the predetermined cutoff values of < 4.7 platelet activity index with A-100 ADP assay to indicate antiplatelet response, more than 91% of patients met the criteria following loading and maintenance doses of prasugrel and more than 84% patients met the criteria following loading and maintenance doses of ticagrelor whereas only 32% and 51% of patients met the criteria following loading and maintenance doses of clopidogrel, respectively. The total percent agreement between the A-100 ADP and VN-PRU assays was 89%. The A-100 ADP assay, which includes whole blood in motion, performs comparably to the VN-PRU assay in a study of patients with cardiovascular risk factors treated with P2Y12 inhibitors possessing known differences in antiplatelet potencies. Trial registration ClinicalTrials.gov Identifier: NCT3111420.


Asunto(s)
Adenosina , Inhibidores de Agregación Plaquetaria , Adenosina/farmacología , Adenosina Difosfato/farmacología , Plaquetas , Clopidogrel/farmacología , Humanos , Agregación Plaquetaria/efectos de los fármacos , Inhibidores de Agregación Plaquetaria/farmacología , Pruebas de Función Plaquetaria , Clorhidrato de Prasugrel/farmacología , Estudios Prospectivos , Antagonistas del Receptor Purinérgico P2Y/farmacología , Ticagrelor
8.
BMC Nephrol ; 22(1): 359, 2021 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-34719384

RESUMEN

BACKGROUND: Acute kidney injury (AKI) is common among patients hospitalised with COVID-19 and associated with worse prognosis. The aim of this study was to investigate the epidemiology, risk factors and outcomes of AKI in patients with COVID-19 in a large UK tertiary centre. METHODS: We analysed data of consecutive adults admitted with a laboratory-confirmed diagnosis of COVID-19 across two sites of a hospital in London, UK, from 1st January to 13th May 2020. RESULTS: Of the 1248 inpatients included, 487 (39%) experienced AKI (51% stage 1, 13% stage 2, and 36% stage 3). The weekly AKI incidence rate gradually increased to peak at week 5 (3.12 cases/100 patient-days), before reducing to its nadir (0.83 cases/100 patient-days) at the end the study period (week 10). Among AKI survivors, 84.0% had recovered renal function to pre-admission levels before discharge and none required on-going renal replacement therapy (RRT). Pre-existing renal impairment [odds ratio (OR) 3.05, 95%CI 2.24-4,18; p <  0.0001], and inpatient diuretic use (OR 1.79, 95%CI 1.27-2.53; p <  0.005) were independently associated with a higher risk for AKI. AKI was a strong predictor of 30-day mortality with an increasing risk across AKI stages [adjusted hazard ratio (HR) 1.59 (95%CI 1.19-2.13) for stage 1; p < 0.005, 2.71(95%CI 1.82-4.05); p < 0.001for stage 2 and 2.99 (95%CI 2.17-4.11); p < 0.001for stage 3]. One third of AKI3 survivors (30.7%), had newly established renal impairment at 3 to 6 months. CONCLUSIONS: This large UK cohort demonstrated a high AKI incidence and was associated with increased mortality even at stage 1. Inpatient diuretic use was linked to a higher AKI risk. One third of survivors with AKI3 exhibited newly established renal impairment already at 3-6 months.


Asunto(s)
Lesión Renal Aguda , COVID-19 , Terapia de Reemplazo Renal , Lesión Renal Aguda/diagnóstico , Lesión Renal Aguda/etiología , Lesión Renal Aguda/mortalidad , Lesión Renal Aguda/terapia , COVID-19/complicaciones , COVID-19/diagnóstico , COVID-19/epidemiología , Estudios de Cohortes , Mortalidad Hospitalaria , Humanos , Incidencia , Unidades de Cuidados Intensivos/estadística & datos numéricos , Pruebas de Función Renal/métodos , Masculino , Persona de Mediana Edad , Evaluación de Procesos y Resultados en Atención de Salud , Gravedad del Paciente , Terapia de Reemplazo Renal/métodos , Terapia de Reemplazo Renal/estadística & datos numéricos , Factores de Riesgo , SARS-CoV-2/aislamiento & purificación , Índice de Severidad de la Enfermedad , Reino Unido/epidemiología
9.
Lancet Oncol ; 21(10): 1331-1340, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-33002437

RESUMEN

BACKGROUND: Adjuvant radiotherapy has been shown to halve the risk of biochemical progression for patients with high-risk disease after radical prostatectomy. Early salvage radiotherapy could result in similar biochemical control with lower treatment toxicity. We aimed to compare biochemical progression between patients given adjuvant radiotherapy and those given salvage radiotherapy. METHODS: We did a phase 3, randomised, controlled, non-inferiority trial across 32 oncology centres in Australia and New Zealand. Eligible patients were aged at least 18 years and had undergone a radical prostatectomy for adenocarcinoma of the prostate with pathological staging showing high-risk features defined as positive surgical margins, extraprostatic extension, or seminal vesicle invasion; had an Eastern Cooperative Oncology Group performance status of 0-1, and had a postoperative prostate-specific antigen (PSA) concentration of 0·10 ng/mL or less. Patients were randomly assigned (1:1) using a minimisation technique via an internet-based, independently generated allocation to either adjuvant radiotherapy within 6 months of radical prostatectomy or early salvage radiotherapy triggered by a PSA of 0·20 ng/mL or more. Allocation sequence was concealed from investigators and patients, but treatment assignment for individual randomisations was not masked. Patients were stratified by radiotherapy centre, preoperative PSA, Gleason score, surgical margin status, and seminal vesicle invasion status. Radiotherapy in both groups was 64 Gy in 32 fractions to the prostate bed without androgen deprivation therapy with real-time review of plan quality on all cases before treatment. The primary endpoint was freedom from biochemical progression. Salvage radiotherapy would be deemed non-inferior to adjuvant radiotherapy if freedom from biochemical progression at 5 years was within 10% of that for adjuvant radiotherapy with a hazard ratio (HR) for salvage radiotherapy versus adjuvant radiotherapy of 1·48. The primary analysis was done on an intention-to-treat basis. This study is registered with ClinicalTrials.gov, NCT00860652. FINDINGS: Between March 27, 2009, and Dec 31, 2015, 333 patients were randomly assigned (166 to adjuvant radiotherapy; 167 to salvage radiotherapy). Median follow-up was 6·1 years (IQR 4·3-7·5). An independent data monitoring committee recommended premature closure of enrolment because of unexpectedly low event rates. 84 (50%) patients in the salvage radiotherapy group had radiotherapy triggered by a PSA of 0·20 ng/mL or more. 5-year freedom from biochemical progression was 86% (95% CI 81-92) in the adjuvant radiotherapy group versus 87% (82-93) in the salvage radiotherapy group (stratified HR 1·12, 95% CI 0·65-1·90; pnon-inferiority=0·15). The grade 2 or worse genitourinary toxicity rate was lower in the salvage radiotherapy group (90 [54%] of 167) than in the adjuvant radiotherapy group (116 [70%] of 166). The grade 2 or worse gastrointestinal toxicity rate was similar between the salvage radiotherapy group (16 [10%]) and the adjuvant radiotherapy group (24 [14%]). INTERPRETATION: Salvage radiotherapy did not meet trial specified criteria for non-inferiority. However, these data support the use of salvage radiotherapy as it results in similar biochemical control to adjuvant radiotherapy, spares around half of men from pelvic radiation, and is associated with significantly lower genitourinary toxicity. FUNDING: New Zealand Health Research Council, Australian National Health Medical Research Council, Cancer Council Victoria, Cancer Council NSW, Auckland Hospital Charitable Trust, Trans-Tasman Radiation Oncology Group Seed Funding, Cancer Research Trust New Zealand, Royal Australian and New Zealand College of Radiologists, Cancer Institute NSW, Prostate Cancer Foundation Australia, and Cancer Australia.


Asunto(s)
Adenocarcinoma/radioterapia , Prostatectomía , Neoplasias de la Próstata/radioterapia , Terapia Recuperativa , Adenocarcinoma/patología , Adenocarcinoma/cirugía , Adulto , Anciano , Australia , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Fraccionamiento de la Dosis de Radiación , Humanos , Masculino , Enfermedades Urogenitales Masculinas/epidemiología , Enfermedades Urogenitales Masculinas/etiología , Persona de Mediana Edad , Nueva Zelanda , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/cirugía , Radioterapia Adyuvante/efectos adversos , Terapia Recuperativa/efectos adversos , Resultado del Tratamiento
10.
Genet Med ; 22(3): 598-609, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31700164

RESUMEN

PURPOSE: Most classical aniridia is caused by PAX6 haploinsufficiency. PAX6 missense variants can be hypomorphic or mimic haploinsufficiency. We hypothesized that missense variants also cause previously undescribed disease by altering the affinity and/or specificity of PAX6 genomic interactions. METHODS: We screened PAX6 in 372 individuals with bilateral microphthalmia, anophthalmia, or coloboma (MAC) from the Medical Research Council Human Genetics Unit eye malformation cohort (HGUeye) and reviewed data from the Deciphering Developmental Disorders study. We performed cluster analysis on PAX6-associated ocular phenotypes by variant type and molecular modeling of the structural impact of 86 different PAX6 causative missense variants. RESULTS: Eight different PAX6 missense variants were identified in 17 individuals (15 families) with MAC, accounting for 4% (15/372) of our cohort. Seven altered the paired domain (p.[Arg26Gln]x1, p.[Gly36Val]x1, p.[Arg38Trp]x2, p.[Arg38Gln]x1, p.[Gly51Arg]x2, p.[Ser54Arg]x2, p.[Asn124Lys]x5) and one the homeodomain (p.[Asn260Tyr]x1). p.Ser54Arg and p.Asn124Lys were exclusively associated with severe bilateral microphthalmia. MAC-associated variants were predicted to alter but not ablate DNA interaction, consistent with the electrophoretic mobility shifts observed using mutant paired domains with well-characterized PAX6-binding sites. We found no strong evidence for novel PAX6-associated extraocular disease. CONCLUSION: Altering the affinity and specificity of PAX6-binding genome-wide provides a plausible mechanism for the worse-than-null effects of MAC-associated missense variants.


Asunto(s)
Anomalías del Ojo/genética , Predisposición Genética a la Enfermedad , Microftalmía/genética , Factor de Transcripción PAX6/genética , Adolescente , Adulto , Sitios de Unión/genética , Niño , Preescolar , Estudios de Cohortes , Proteínas de Unión al ADN/genética , Anomalías del Ojo/patología , Femenino , Heterocigoto , Humanos , Lactante , Masculino , Microftalmía/patología , Mutación Missense/genética , Linaje , Adulto Joven
11.
J Natl Compr Canc Netw ; 17(11.5): 1414-1416, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31766017

RESUMEN

Over the past several decades, tremendous progress has been made in the treatment of follicular lymphoma. The addition of rituximab to chemotherapy led to significant improvements in survival in the 1990s. Current standard of care in advanced-stage, previously untreated follicular lymphoma is rituximab plus chemotherapy, sometimes followed by rituximab maintenance. Now, as more research is conducted in the field of chemotherapy-free treatment, Dr. Richard I. Fisher discussed the importance of carefully constructed phase II or III trials at the NCCN 2019 Annual Congress: Hematologic Malignancies. He maintained that a nonchemotherapy treatment regimen comprising rituximab + lenalidomide can be considered in carefully selected patients, and that it is currently the only chemotherapy-free treatment that should be recommended.


Asunto(s)
Linfoma Folicular/tratamiento farmacológico , Femenino , Humanos , Masculino
12.
Biol Blood Marrow Transplant ; 24(4): 700-707, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29289757

RESUMEN

Based on promising pilot data a phase II tandem autologous hematopoietic stem cell transplant (AHSCT) trial for relapsed/refractory Hodgkin lymphoma (HL) was performed in the US intergroup setting to determine if long-term progression-free survival (PFS) could be improved. Patients were enrolled after salvage therapy and stem cell collection. Sensitivity to salvage was defined by 1999 Standardized Response Criteria and did not include fluorodeoxyglucose-positron emission tomography. Cycle 1 consisted of melphalan 150 mg/m2 with half of the stem cells. For stable disease or better, patients received cycle 2 consisting of single doses of etoposide 60 mg/kg and cyclophosphamide 100 mg/kg and either total body radiation 12 Gy in 8 fractions over 4 days or BCNU 150 mg/m2/day for 3 days with the remaining stem cells. Of 98 enrolled patients, 89 were eligible and treated: 82 completed both cycles of AHSCT, 47 (53%) had primary refractory HL, and 72 (81%) were resistant to salvage therapy. There were no treatment-related deaths in the first year after AHSCT. With a median follow-up of 6.2 years (range, 2 to 7.7) for eligible patients who remained alive, the 2-year and 5-year PFS were 63% (95% CI, 52% to 72%) and 55% (95% CI, 44% to 64%) respectively; the 2-year and 5-year overall survival were 91% (95% CI, 83% to 95%) and 84% (95% CI, 74% to 90%), respectively. Univariate Cox regression analysis showed Zubrod performance status and lactate dehydrogenase levels > 1 times upper limit of normal at the time of enrollment were significantly associated with PFS. The observed 5-year PFS of 55% suggests the tandem approach appears to be effective in treating HL patients demonstrated to have poor prognosis in prior single AHSCT trials. This trial was registered at www.clinicaltrials.gov as NCT00233987.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Enfermedad de Hodgkin/terapia , Adulto , Anciano , Autoinjertos , Niño , Ciclofosfamida/administración & dosificación , Supervivencia sin Enfermedad , Etopósido/administración & dosificación , Femenino , Enfermedad de Hodgkin/diagnóstico por imagen , Enfermedad de Hodgkin/mortalidad , Humanos , Masculino , Melfalán/administración & dosificación , Persona de Mediana Edad , Tomografía de Emisión de Positrones , Recurrencia , Tasa de Supervivencia , Irradiación Corporal Total
13.
Am J Hematol ; 93(4): 486-493, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29266344

RESUMEN

Loss of major histocompatibility Class II expression (MHCII) in diffuse large B-cell lymphoma (DLBCL) correlates with decreased survival. MHCII transcription is in part regulated by histone acetylation. We tested the hypothesis that combination of histone deacetylase inhibitor (HDACI) with standard chemotherapy would improve outcomes in DLBCL in part through increased MHCII expression. S0806 was a single arm phase I/II trial of vorinostat given at 400 mg po daily on days 1-9 (subsequently amended to days 1-5 due to toxicity), combined with R-CHOP given on day 3 of a 21-day cycle for 8 cycles, with primary phase II endpoint of 2-year progression free survival (PFS). With 72 evaluable patients, at median follow up of 3 years, 2-year PFS estimate was 73%, and OS estimate was 86%. Considering that the regimen fell short of predefined efficacy improvement and was associated with high rates of febrile neutropenia (38%) and sepsis (19%), it cannot be recommended for general use. Consistent with our hypothesis, patients with low MCHII expression on S0806 had numerically superior outcomes compared to those from trial S0433 which did not use an HDACI, but the difference was not statistically significant. Current studies are focused on finding biomarkers of response to HDACI.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Ciclofosfamida/administración & dosificación , Ciclofosfamida/efectos adversos , Citocinas/sangre , Doxorrubicina/administración & dosificación , Doxorrubicina/efectos adversos , Neutropenia Febril/etiología , Neutropenia Febril/inmunología , Femenino , Estudios de Seguimiento , Antígenos HLA-D/biosíntesis , Inhibidores de Histona Desacetilasas/administración & dosificación , Inhibidores de Histona Desacetilasas/efectos adversos , Humanos , Linfoma de Células B Grandes Difuso/patología , Masculino , Persona de Mediana Edad , Prednisona/administración & dosificación , Prednisona/efectos adversos , Supervivencia sin Progresión , Rituximab/administración & dosificación , Rituximab/efectos adversos , Sepsis/inducido químicamente , Sepsis/inmunología , Resultado del Tratamiento , Vincristina/administración & dosificación , Vincristina/efectos adversos , Vorinostat/administración & dosificación , Vorinostat/efectos adversos , Adulto Joven
14.
Nature ; 490(7418): 116-20, 2012 Oct 04.
Artículo en Inglés | MEDLINE | ID: mdl-22885699

RESUMEN

Burkitt's lymphoma (BL) can often be cured by intensive chemotherapy, but the toxicity of such therapy precludes its use in the elderly and in patients with endemic BL in developing countries, necessitating new strategies. The normal germinal centre B cell is the presumed cell of origin for both BL and diffuse large B-cell lymphoma (DLBCL), yet gene expression analysis suggests that these malignancies may use different oncogenic pathways. BL is subdivided into a sporadic subtype that is diagnosed in developed countries, the Epstein-Barr-virus-associated endemic subtype, and an HIV-associated subtype, but it is unclear whether these subtypes use similar or divergent oncogenic mechanisms. Here we used high-throughput RNA sequencing and RNA interference screening to discover essential regulatory pathways in BL that cooperate with MYC, the defining oncogene of this cancer. In 70% of sporadic BL cases, mutations affecting the transcription factor TCF3 (E2A) or its negative regulator ID3 fostered TCF3 dependency. TCF3 activated the pro-survival phosphatidylinositol-3-OH kinase pathway in BL, in part by augmenting tonic B-cell receptor signalling. In 38% of sporadic BL cases, oncogenic CCND3 mutations produced highly stable cyclin D3 isoforms that drive cell cycle progression. These findings suggest opportunities to improve therapy for patients with BL.


Asunto(s)
Linfoma de Burkitt/tratamiento farmacológico , Linfoma de Burkitt/genética , Genómica , Terapia Molecular Dirigida , Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/antagonistas & inhibidores , Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/genética , Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/metabolismo , Linfoma de Burkitt/metabolismo , Linfoma de Burkitt/patología , Ciclo Celular , Ciclina D3/genética , Ciclina D3/metabolismo , Quinasa 6 Dependiente de la Ciclina/metabolismo , Genes myc/genética , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Proteínas Inhibidoras de la Diferenciación/genética , Proteínas Inhibidoras de la Diferenciación/metabolismo , Proteínas de Neoplasias/genética , Proteínas de Neoplasias/metabolismo , Fosfatidilinositol 3-Quinasas/metabolismo , Interferencia de ARN , Receptores de Antígenos de Linfocitos B/metabolismo , Transducción de Señal
16.
Br J Haematol ; 176(5): 759-769, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-27992063

RESUMEN

Aggressive induction chemotherapy followed by autologous haematopoietic stem cell transplant (auto-HCT) is effective for younger patients with mantle cell lymphoma (MCL). However, the optimal induction regimen is widely debated. The Southwestern Oncology Group S1106 trial was designed to assess rituximab plus hyperCVAD/MTX/ARAC (hyperfractionated cyclophosphamide, vincristine, doxorubicin and dexamethasone, alternating with high dose cytarabine and methotrexate) (RH) versus rituximab plus bendamustine (RB) in a randomized phase II trial to select a pre-transplant induction regimen for future development. Patients had previously untreated stage III, IV, or bulky stage II MCL and received either 4 cycles of RH or 6 cycles of RB, followed by auto-HCT. Fifty-three of a planned 160 patients were accrued; an unacceptably high mobilization failure rate (29%) on the RH arm prompted premature study closure. The estimated 2-year progression-free survival (PFS) was 81% vs. 82% and overall survival (OS) was 87% vs. 88% for RB and RH, respectively. RH is not an ideal platform for future multi-centre transplant trials in MCL. RB achieved a 2-year PFS of 81% and a 78% MRD negative rate. Premature closure of the study limited the sample size and the precision of PFS estimates and MRD rates. However, RB can achieve a deep remission and could be a platform for future trials in MCL.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Clorhidrato de Bendamustina/administración & dosificación , Trasplante de Células Madre Hematopoyéticas/métodos , Linfoma de Células del Manto/terapia , Inducción de Remisión/métodos , Rituximab/administración & dosificación , Adolescente , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Terapia Combinada/métodos , Terapia Combinada/mortalidad , Ciclofosfamida/administración & dosificación , Citarabina/administración & dosificación , Dexametasona/administración & dosificación , Supervivencia sin Enfermedad , Doxorrubicina/administración & dosificación , Femenino , Trasplante de Células Madre Hematopoyéticas/mortalidad , Humanos , Linfoma de Células del Manto/mortalidad , Masculino , Metotrexato/administración & dosificación , Persona de Mediana Edad , Neoplasia Residual/diagnóstico , Trasplante Autólogo , Resultado del Tratamiento , Vincristina/administración & dosificación , Adulto Joven
17.
Ann Surg ; 265(5): 882-888, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-27631775

RESUMEN

OBJECTIVE: To compare acute adverse events (AE) and postoperative complication rates in a randomized trial of short-course (SC) versus long-course (LC) preoperative radiotherapy. BACKGROUND: Evidence demonstrates that adding neoadjuvant radiotherapy to surgery offers better local control in the management of rectal cancer. With both SC and LC therapy there is a potential for acute treatment-related toxicity and increased patient morbidity. METHODS: Eligible patients had clinical-stage T3 rectal adenocarcinoma within 12 cm of the anal verge with no evidence of metastasis. SC consisted of pelvic radiotherapy 5 × 5 Gy in 1 week, early surgery and 6 courses of adjuvant chemotherapy. LC was 50.4 Gy administered in 28 fractions during 5.5 weeks, with infusion 5-fluorouracil, surgery in 4 to 6 weeks, and 4 courses of chemotherapy. RESULTS: All SC patients and 93% of LC patients received preoperative planned radiotherapy. There was no 30-day operative mortality. A statistically significant higher percentage of at least 1 AE occurred in the LC group (SC, 72.3%; LC, 99.4%; P < 0.001). There were significant differences in favor of SC for grade 3 AE: radiation dermatitis (0% vs 5.6%, P = 0.003), proctitis (0% vs 3.7% P = 0.016), nausea (0% vs 3.1%, P = 0.029), fatigue (0% vs 3.7%, P = 0.016) and grade 3/4 diarrhea rates (1.3% vs 14.2% P < 0.001). No statistically significant differences in surgical complication rates were seen (SC 53.2 vs 50.4% LC, p = 0.68), although permanent stoma (38.0% vs 29.8%, P = 0.13) and anastomotic breakdown (7.1% vs 3.5%, P = 0.26) rates favored LC with perineal wound complications (38.3% vs 50.0%, P = 0.26) in favor of SC. CONCLUSIONS: LC had significantly higher AEs compared with SC with no statistically significant differences in postoperative complications. There were clinical trends in permanent stoma rates and anastomotic leaks in favor of LC but with an increased perineal wound breakdown rate.


Asunto(s)
Adenocarcinoma/cirugía , Causas de Muerte , Quimioradioterapia/efectos adversos , Complicaciones Posoperatorias/mortalidad , Neoplasias del Recto/cirugía , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Adulto , Anciano , Quimioradioterapia/métodos , Colectomía/métodos , Supervivencia sin Enfermedad , Relación Dosis-Respuesta en la Radiación , Fluorouracilo/uso terapéutico , Humanos , Persona de Mediana Edad , Terapia Neoadyuvante/efectos adversos , Terapia Neoadyuvante/métodos , Invasividad Neoplásica/patología , Estadificación de Neoplasias , Complicaciones Posoperatorias/fisiopatología , Cuidados Preoperatorios , Pronóstico , Estudios Prospectivos , Dosificación Radioterapéutica , Radioterapia Adyuvante/efectos adversos , Neoplasias del Recto/mortalidad , Neoplasias del Recto/patología , Medición de Riesgo , Análisis de Supervivencia , Tasmania , Factores de Tiempo , Resultado del Tratamiento
18.
Blood ; 126(16): 1869-70, 2015 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-26472733

RESUMEN

In this issue of Blood, Offner et al report the results of LYM-2034, a phase 2 multinational trial in which 164 patients with nongerminal center B-cell­like diffuse large B-cell lymphoma (non-GCB DLBCL) were randomized to receive rituximab, cyclophosphamide, adriamycin, prednisone, and either vincristine (R-CHOP) or bortezomib (VR-CAP). DLBCL, previously recognized as a single disease entity, represents a heterogeneous group of diseases.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Linfoma de Células B Grandes Difuso/mortalidad , Femenino , Humanos , Masculino
19.
Blood ; 125(2): 236-41, 2015 Jan 08.
Artículo en Inglés | MEDLINE | ID: mdl-25395425

RESUMEN

In the S0313 trial, we evaluated the impact of adding ibritumomab tiuxetan consolidation to 3 cycles of standard cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP) chemotherapy plus involved field radiotherapy (IFRT) in patients with limited-stage aggressive B-cell non-Hodgkin lymphoma (LD-NHL). Patients with at least 1 stage-modified adverse risk factor (nonbulky stage II, age >60 years, elevated lactate dehydrogenase, or World Health Organization performance status of 2) were treated with CHOP on days 1, 22, and 43, followed 3 weeks later by 40 to 50 Gy of IFRT. An ibritumomab tiuxetan regimen was initiated 3 to 6 weeks following IFRT. Forty-six patients were registered and eligible, with median follow-up of 7.3 years. The progression-free survival estimate is 89% at 2 years, 82% at 5 years, and 75% at 7 years. The overall survival estimate is 91% at 2 years, 87% at 5 years, and 82% at 7 years. Grade 4 adverse events occurring more than once included neutropenia (8), leukopenia (5), and lymphopenia (2). Febrile neutropenia was observed in 4 patients. No cases of treatment-related myeloid neoplasms were noted. In conclusion, patients with high-risk LD-NHL treated with 3 cycles of CHOP plus IFRT followed by ibritumomab tiuxetan consolidation had outcomes that compare favorably to our historical experience. The clinical trial was registered at www.clinicaltrials.gov as #NCT00070018.


Asunto(s)
Anticuerpos Monoclonales/uso terapéutico , Quimioradioterapia , Quimioterapia de Consolidación/métodos , Linfoma de Células B/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Quimioradioterapia/métodos , Ciclofosfamida/administración & dosificación , Supervivencia sin Enfermedad , Doxorrubicina/administración & dosificación , Femenino , Humanos , Estimación de Kaplan-Meier , Linfoma de Células B/mortalidad , Linfoma de Células B/radioterapia , Masculino , Persona de Mediana Edad , Prednisona/administración & dosificación , Vincristina/administración & dosificación , Adulto Joven
20.
J Natl Compr Canc Netw ; 15(3): 293-311, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-28275031

RESUMEN

Chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL) are different manifestations of the same disease and managed in much the same way. The advent of novel CD20 monoclonal antibodies led to the development of effective chemoimmunotherapy regimens. More recently, small molecule inhibitors targeting kinases involved in a number of critical signaling pathways and a small molecule inhibitor of the BCL-2 family of proteins have demonstrated activity for the treatment of patients with CLL/SLL. These NCCN Guidelines Insights highlight important updates to the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for CLL/SLL for the treatment of patients with newly diagnosed or relapsed/refractory CLL/SLL.


Asunto(s)
Leucemia Linfocítica Crónica de Células B/diagnóstico , Leucemia Linfocítica Crónica de Células B/terapia , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Comorbilidad , Resistencia a Antineoplásicos , Humanos , Leucemia Linfocítica Crónica de Células B/etiología , Leucemia Linfocítica Crónica de Células B/mortalidad , Terapia Molecular Dirigida , Estadificación de Neoplasias , Recurrencia , Retratamiento , Resultado del Tratamiento
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