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1.
Blood ; 143(4): 336-341, 2024 Jan 25.
Artículo en Inglés | MEDLINE | ID: mdl-37647641

RESUMEN

ABSTRACT: Assessment of measurable residual disease (MRD) by quantitative reverse transcription polymerase chain reaction is strongly prognostic in patients with NPM1-mutated acute myeloid leukemia (AML) treated with intensive chemotherapy; however, there are no data regarding its utility in venetoclax-based nonintensive therapy, despite high efficacy in this genotype. We analyzed the prognostic impact of NPM1 MRD in an international real-world cohort of 76 previously untreated patients with NPM1-mutated AML who achieved complete remission (CR)/CR with incomplete hematological recovery following treatment with venetoclax and hypomethylating agents (HMAs) or low-dose cytarabine (LDAC). A total of 44 patients (58%) achieved bone marrow (BM) MRD negativity, and a further 14 (18%) achieved a reduction of ≥4 log10 from baseline as their best response, with no difference between HMAs and LDAC. The cumulative rates of BM MRD negativity by the end of cycles 2, 4, and 6 were 25%, 47%, and 50%, respectively. Patients achieving BM MRD negativity by the end of cycle 4 had 2-year overall of 84% compared with 46% if MRD was positive. On multivariable analyses, MRD negativity was the strongest prognostic factor. A total of 22 patients electively stopped therapy in BM MRD-negative remission after a median of 8 cycles, with 2-year treatment-free remission of 88%. In patients with NPM1-mutated AML attaining remission with venetoclax combination therapies, NPM1 MRD provides valuable prognostic information.


Asunto(s)
Compuestos Bicíclicos Heterocíclicos con Puentes , Leucemia Mieloide Aguda , Nucleofosmina , Sulfonamidas , Humanos , Pronóstico , Mutación , Leucemia Mieloide Aguda/tratamiento farmacológico , Leucemia Mieloide Aguda/genética , Citarabina , Neoplasia Residual/genética
2.
Blood ; 142(20): 1697-1707, 2023 11 16.
Artículo en Inglés | MEDLINE | ID: mdl-37595359

RESUMEN

Addition of gemtuzumab ozogamicin (GO) to induction chemotherapy improves outcomes in older patients with acute myeloid leukemia (AML), but it is uncertain whether a fractionated schedule provides additional benefit to a single dose. We randomized 852 older adults (median age, 68-years) with AML/high-risk myelodysplasia to GO on day 1 (GO1) or on days 1 and 4 (GO2) of course 1 induction. The median follow-up period was 50.2 months. Although complete remission (CR) rates after course 1 did not significantly differ between arms (GO2, 63%; GO1, 57%; odds ratio [OR], 0.78; P = .08), there were significantly more patients who achieved CR with a measurable residual disease (MRD)<0.1% (50% vs 41%; OR, 0.72; P = .027). This differential MRD reduction with GO2 varied across molecular subtypes, being greatest for IDH mutations. The 5-year overall survival (OS) was 29% for patients in the GO2 arm and 24% for those in the GO1 arm (hazard ratio [HR], 0.89; P = .14). In a sensitivity analysis excluding patients found to have adverse cytogenetics or TP53 mutations, the 5-year OS was 33% for GO2 and 26% for GO1 (HR, 0.83; P = .045). In total, 228 (27%) patients received an allogeneic transplantation in first remission. Posttransplant OS was superior in the GO2 arm (HR, 0.67; P = .033); furthermore, the survival advantage from GO2 in the sensitivity analysis was lost when data of patients were censored at transplantation. In conclusion, GO2 was associated with a greater reduction in MRD and improved survival in older adults with nonadverse risk genetics. This benefit from GO2 was dependent on allogeneic transplantation to translate the better leukemia clearance into improved survival. This trial was registered at www.isrctn.com as #ISRCTN 31682779.


Asunto(s)
Daunorrubicina , Leucemia Mieloide Aguda , Humanos , Anciano , Gemtuzumab/uso terapéutico , Anticuerpos Monoclonales Humanizados , Citarabina , Leucemia Mieloide Aguda/tratamiento farmacológico , Leucemia Mieloide Aguda/genética , Reino Unido , Aminoglicósidos , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos
3.
Br J Haematol ; 204(3): 871-876, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38016651

RESUMEN

Improving outcomes for older patients with acute myeloid leukaemia remains an unmet need. As part of the LI-1 trial, we evaluated lenalidomide (LEN) in combination with low-dose cytosine arabinoside (LDAC) in patients aged >60 years unfit for intensive therapy and compared this to LDAC alone. Two hundred and two patients, randomised 1:1, were evaluable. Overall response rate (CR + CRi) was higher for LDAC + LEN versus LDAC (26% and 13.7% respectively p = 0.031). However, there was no difference in overall survival between the arms (14% and 11.5% at 2 years for LDAC + LEN and LDAC respectively). The addition of LEN was associated with increased toxicity and supportive care requirements.


Asunto(s)
Citarabina , Leucemia Mieloide Aguda , Humanos , Anciano , Lenalidomida/uso terapéutico , Inducción de Remisión , Leucemia Mieloide Aguda/tratamiento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico
4.
Clin Gerontol ; 47(1): 110-121, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-35998237

RESUMEN

OBJECTIVES: This program evaluation examined the feasibility, acceptability, and preliminary effects of an individualized coaching program to help older Veterans use VA mental health mobile apps to address mental health and well-being goals. METHODS: The program delivers individual technical and clinical support to facilitate the use of mobile devices and VA apps. Participants completed assessments of mobile device proficiency, app use frequency, app comfort, quality of life, and mental health symptoms (completed by a subset, n = 11) pre- and post-participation. RESULTS: Of 24 enrollees, 17 completed the program and received an average of 7.58 (SD = 2.87) sessions including the initial assessment. Mobile device proficiency (t (16) = -3.80, p = .002) and number of days/week apps were used (t (16) = -2.34, p = .032) increased significantly from pre- to post-participation. Depressive and anxiety scores decreased significantly (t (10) = 3.16, p = .010; t (10) = 3.29, p = .008) among the subset completing those measures. Overall satisfaction was high; 100% reported they would recommend the program. CONCLUSIONS: Findings suggest the program is feasible, highly acceptable, and increases mobile device proficiency and use of apps. CLINICAL IMPLICATIONS: Coaching programs can equip older adults with the skills to use mental health apps.


Asunto(s)
Tutoría , Aplicaciones Móviles , Telemedicina , Veteranos , Humanos , Anciano , Salud Mental , Estudios de Factibilidad , Calidad de Vida
5.
Clin Gerontol ; 47(1): 90-97, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-36773070

RESUMEN

OBJECTIVES: This paper characterizes a telephone-based e-consult program designed to assess and treat behavioral and psychological symptoms of dementia (BPSD) for older rural Veterans. METHODS: E-consults required geriatricians to conduct chart review and telephone calls to caregivers to determine behavior triggers, prior management attempts, and medications. Pharmacologic and non-pharmacological recommendations were provided with follow-up calls as needed. RESULTS: Evaluation of 364 Veterans (M age = 80.8, 32% in rural/distal clinics) showed 97% (n = 355) of E-consult interventions included caregiver dementia education to prepare them for managing disease progression and provide non-pharmacological strategies for BPSD. Ninety-four percent (n = 244) of Veterans received medication guidance. A total of 37,504 travel miles was saved, with an average of 108 miles for each Veteran. CONCLUSIONS: Findings support continued implementation of telephone and other virtual modalities of assessing and treating BPSD for older Veterans, thereby increasing access to dementia specialists, especially for rural older adults and their caregivers. A limitation to e-consults is the time needed to provide services compared to the maximum workload credit allowed. CLINICAL IMPLICATIONS: Virtual care improves access to Geriatric specialists and semi-urgent care that otherwise is not available. E-consults are effective in providing primary care providers guidance for diagnosis and management of dementia.


Asunto(s)
Demencia , Veteranos , Humanos , Anciano , Anciano de 80 o más Años , Veteranos/psicología , Derivación y Consulta , Cuidadores/psicología , Demencia/psicología
6.
Br J Haematol ; 200(5): 573-578, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36413792

RESUMEN

The survival of acute myeloid leukaemia (AML) patients aged over 60 has been suboptimal historically, whether they are treated using hypomethylating agents, low-dose cytarabine (LDAC) or venetoclax-based regimens. Progress is being made, however, for subgroups with favourable molecular or cytogenetic findings. Arginine metabolism plays a key role in AML pathophysiology. We report the only randomised study of LDAC with recombinant arginase BCT-100 versus LDAC alone in older AML patients unsuitable for intensive therapy. Eighty-three patients were randomised to the study. An overall response rate was seen in 19.5% (all complete remission [CR]) and 15% (7.5% each in CR and CR without evidence of adequate count recovery [CRi]) of patients in the LDAC+BCT-100 and LDAC arms respectively (odds ratio 0.73, confidence interval 0.23-2.33; p = 0.592). No significant difference in overall or median survival between treatment arms was seen. The addition of BCT-100 to LDAC was well tolerated.


Asunto(s)
Citarabina , Leucemia Mieloide Aguda , Humanos , Persona de Mediana Edad , Anciano , Arginasa , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Polietilenglicoles/uso terapéutico
7.
Eur J Haematol ; 111(2): 201-210, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37186398

RESUMEN

INTRODUCTION: Tyrosine kinase inhibitors (TKIs) have become the mainstay of treatment for chronic myeloid leukaemia (CML), but cardiovascular (CV) risk and exacerbation of underlying risk factors associated with TKIs have become widely debated. Real-world evidence reveals little application of CV risk factor screening or continued monitoring within UK CML management. This consensus paper presents practical recommendations to assist healthcare professionals in conducting CV screening/comorbidity management for patients receiving TKIs. METHODS: We conducted a multidisciplinary panel meeting and two iterative surveys involving 10 CML specialists: five haematologists, two cardio-oncologists, one vascular surgeon, one haemato-oncology pharmacist and one specialist nurse practitioner. RESULTS: The panel recommended that patients commencing second-/third-generation TKIs undergo formal CV risk assessment at baseline, with additional investigations and involvement of cardiologists/vascular surgeons for those with high CV risk. During treatment, patients should undergo CV monitoring, with the nature and frequency of testing dependent on TKI and baseline CV risk. For patients who develop CV adverse events, decision-making around TKI interruption, cessation or change should be multidisciplinary and balance CV and haematological risk. CONCLUSION: The panel anticipates these recommendations will support healthcare professionals in implementing CV risk screening and monitoring, broadly and consistently, and thereby help optimise TKI treatment for CML.


Asunto(s)
Antineoplásicos , Enfermedades Cardiovasculares , Leucemia Mielógena Crónica BCR-ABL Positiva , Humanos , Antineoplásicos/uso terapéutico , Enfermedades Cardiovasculares/diagnóstico , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/etiología , Inhibidores de Proteínas Quinasas/efectos adversos , Consenso , Factores de Riesgo , Leucemia Mielógena Crónica BCR-ABL Positiva/complicaciones , Leucemia Mielógena Crónica BCR-ABL Positiva/diagnóstico , Leucemia Mielógena Crónica BCR-ABL Positiva/tratamiento farmacológico , Factores de Riesgo de Enfermedad Cardiaca
8.
Am J Geriatr Psychiatry ; 31(4): 279-290, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36754647

RESUMEN

OBJECTIVES: Cross-facility tele-geriatric psychiatry consultation is a promising model for providing specialty services to regions lacking sufficient geriatric psychiatry expertise. This evaluation focused on assessing the feasibility and acceptability of a consultation program developed by a geriatric psychiatrist in a Veterans Health Administration regional telehealth hub. DESIGN: Concurrent, mixed methods program evaluation. SETTING: A region served by a VA health care system telehealth hub. PARTICIPANTS: Patients with at least 1 geriatric mental health encounter with a geriatric psychiatrist consultant during a 1 year-period; referring providers. INTERVENTION: Virtual psychiatric evaluation of Veterans with time-limited follow-up and e-consultation with providers. MEASUREMENTS: Interviews with consultant, medical record data, and referring provider surveys. RESULTS: Three hundred fifteen Veterans (M = 76.0 ± 9.64 years; 40% rural-dwelling) had 666 encounters (M = 2.11 ± 1.78) with most occurring via clinical video telehealth (n = 443; 67.6%), e-consultation (n = 99; 15.1%), or video to home (n = 95; 14.5%). Most encounters were related to neurocognitive disorders, depressive disorders, trauma-related disorders, or serious mental illness. Referring providers (N = 58) highly recommended the program, reported high satisfaction, followed through with recommendations, and believed that this program increased access to geriatric psychiatry. CONCLUSIONS: This single program was shown to be feasible, acceptable, and valued by the referring providers. The findings highlighted the complex presentations of Veterans referred, and the current unmet need of providers of such Veterans, providing impetus for wider implementation.


Asunto(s)
Telemedicina , Veteranos , Humanos , Anciano , Cuidadores , Proyectos Piloto , Psiquiatría Geriátrica , Telemedicina/métodos , Derivación y Consulta
9.
J Neuroeng Rehabil ; 20(1): 163, 2023 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-38041164

RESUMEN

BACKGROUND: Muscles in the post-stroke arm commonly demonstrate abnormal reflexes that result in increased position- and velocity-dependent resistance to movement. We sought to develop a reliable way to quantify mechanical consequences of abnormal neuromuscular mechanisms throughout the reachable workspace in the hemiparetic arm post-stroke. METHODS: Survivors of hemiparetic stroke (HS) and neurologically intact (NI) control subjects were instructed to relax as a robotic device repositioned the hand of their hemiparetic arm between several testing locations that sampled the arm's passive range of motion. During transitions, the robot induced motions at either the shoulder or elbow joint at three speeds: very slow (6°/s), medium (30°/s), and fast (90°/s). The robot held the hand at the testing location for at least 20 s after each transition. We recorded and analyzed hand force and electromyographic activations from selected muscles spanning the shoulder and elbow joints during and after transitions. RESULTS: Hand forces and electromyographic activations were invariantly small at all speeds and all sample times in NI control subjects but varied systematically by transport speed during and shortly after movement in the HS subjects. Velocity-dependent resistance to stretch diminished within 2 s after movement ceased in the hemiparetic arms. Hand forces and EMGs changed very little from 2 s after the movement ended onward, exhibiting dependence on limb posture but no systematic dependence on movement speed or direction. Although each HS subject displayed a unique field of hand forces and EMG responses across the workspace after movement ceased, the magnitude of steady-state hand forces was generally greater near the outer boundaries of the workspace than in the center of the workspace for the HS group but not the NI group. CONCLUSIONS: In the HS group, electromyographic activations exhibited abnormalities consistent with stroke-related decreases in the stretch reflex thresholds. These observations were consistent across repeated testing days. We expect that the approach described here will enable future studies to elucidate stroke's impact on the interaction between the neural mechanisms mediating control of upper extremity posture and movement during goal-directed actions such as reaching and pointing with the arm and hand.


Asunto(s)
Articulación del Codo , Accidente Cerebrovascular , Humanos , Brazo/fisiología , Electromiografía , Postura/fisiología , Movimiento/fisiología , Articulación del Codo/fisiología , Accidente Cerebrovascular/complicaciones , Músculo Esquelético/fisiología
10.
Gerontol Geriatr Educ ; 44(3): 329-338, 2023 07 03.
Artículo en Inglés | MEDLINE | ID: mdl-35491904

RESUMEN

There is a growing need for psychologists with specialized training in geriatric mental health competencies. The Geriatric Scholars Program for Psychologists (GSP-P) was created to address this shortage within a large integrated healthcare system. In 2019, GSP-P piloted an advanced workshop designed to enhance expertise in geriatric mental health competencies among graduates of its foundational competencies core course. The workshop included 3.5 days of expert-led seminars regarding the biopsychosocial needs of older adults with chronic medical illness and was followed by completion of an individualized learning plan. This paper describes the evaluation of the course using a mixed methods with data collected prior to the workshop, immediately post-workshop, and six months post-workshop. Results indicated enthusiasm for the workshop, significant improvements in four geropsychology domains on the Pikes Peak Geropsychology Knowledge and Skill Assessment Tool, and benefit from completion of the independent learning plans. Our findings demonstrate that continued enhancement of geropsychology competencies through advanced coursework is feasible and improves knowledge and skill, particularly when combined with individualized learning plans.


Asunto(s)
Geriatría , Humanos , Anciano , Geriatría/educación , Psiquiatría Geriátrica/educación
11.
Br J Haematol ; 196(6): 1337-1343, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34957541

RESUMEN

Induction therapy for acute myeloid leukaemia (AML) has changed with the approval of a number of new agents. Clinical guidelines can struggle to keep pace with an evolving treatment and evidence landscape and therefore identifying the most appropriate front-line treatment is challenging for clinicians. Here, we combined drug eligibility criteria and genetic risk stratification into a digital format, allowing the full range of possible treatment eligibility scenarios to be defined. Using exemplar cases representing each of the 22 identified scenarios, we sought to generate consensus on treatment choice from a panel of nine aUK AML experts. We then analysed >2500 real-world cases using the same algorithm, confirming the existence of 21/22 of these scenarios and demonstrating that our novel approach could generate a consensus AML induction treatment in 98% of cases. Our approach, driven by the use of decision trees, is an efficient way to develop consensus guidance rapidly and could be applied to other disease areas. It has the potential to be updated frequently to capture changes in eligibility criteria, novel therapies and emerging trial data. An interactive digital version of the consensus guideline is available.


Asunto(s)
Leucemia Mieloide Aguda , Adulto , Consenso , Humanos , Leucemia Mieloide Aguda/diagnóstico , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/terapia
12.
Blood ; 135(9): 680-688, 2020 02 27.
Artículo en Inglés | MEDLINE | ID: mdl-31932839

RESUMEN

Relapse remains the most common cause of treatment failure for patients with acute myeloid leukemia (AML) who undergo allogeneic stem cell transplantation (alloSCT), and carries a grave prognosis. Multiple studies have identified the presence of measurable residual disease (MRD) assessed by flow cytometry before alloSCT as a strong predictor of relapse, but it is not clear how these findings apply to patients who test positive in molecular MRD assays, which have far greater sensitivity. We analyzed pretransplant blood and bone marrow samples by reverse-transcription polymerase chain reaction in 107 patients with NPM1-mutant AML enrolled in the UK National Cancer Research Institute AML17 study. After a median follow-up of 4.9 years, patients with negative, low (<200 copies per 105ABL in the peripheral blood and <1000 copies in the bone marrow aspirate), and high levels of MRD had an estimated 2-year overall survival (2y-OS) of 83%, 63%, and 13%, respectively (P < .0001). Focusing on patients with low-level MRD before alloSCT, those with FLT3 internal tandem duplications(ITDs) had significantly poorer outcome (hazard ratio [HR], 6.14; P = .01). Combining these variables was highly prognostic, dividing patients into 2 groups with 2y-OS of 17% and 82% (HR, 13.2; P < .0001). T-depletion was associated with significantly reduced survival both in the entire cohort (2y-OS, 56% vs 96%; HR, 3.24; P = .0005) and in MRD-positive patients (2y-OS, 34% vs 100%; HR, 3.78; P = .003), but there was no significant effect of either conditioning regimen or donor source on outcome. Registered at ISRCTN (http://www.isrctn.com/ISRCTN55675535).


Asunto(s)
Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/terapia , Neoplasia Residual , Proteínas Nucleares/genética , Adolescente , Adulto , Anciano , Femenino , Trasplante de Células Madre Hematopoyéticas/mortalidad , Humanos , Leucemia Mieloide Aguda/mortalidad , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/genética , Recurrencia Local de Neoplasia/mortalidad , Neoplasia Residual/diagnóstico , Neoplasia Residual/genética , Nucleofosmina , Recurrencia , Adulto Joven
13.
Am J Hematol ; 96(4): 493-507, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-33368536

RESUMEN

Treatment of older patients with AML remains challenging. Although age, performance status, and comorbidities are commonly employed to determine fitness for intensive treatment, several studies have demonstrated improved outcomes with treatment in older and classically unfit patients, highlighting the importance of other disease-related and patient-related factors that have prognostic value for treatment outcome in AML. However, consistent and objective assessments for fitness are lacking. Multi-parameter geriatric assessment tools offer more comprehensive evaluation, but are limited by the required resources and lack of standardization and consensus regarding prognostic value. These assessments are particularly important considering the emerging new AML therapies that represent a spectrum of intensities. Patients should therefore be evaluated holistically for fitness to receive a specific treatment, with the aim of providing individualized care, and such definitions of fitness should also consistently be applied to clinical trials. This review will examine evolving criteria for the determination of fitness among AML patients and discuss treatment options for older and/or unfit patients with AML.


Asunto(s)
Antineoplásicos/uso terapéutico , Leucemia Mieloide Aguda/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Antineoplásicos/administración & dosificación , Antineoplásicos/efectos adversos , Ensayos Clínicos como Asunto , Comorbilidad , Manejo de la Enfermedad , Femenino , Evaluación Geriátrica , Humanos , Estado de Ejecución de Karnofsky , Masculino , Pruebas de Estado Mental y Demencia , Selección de Paciente , Examen Físico , Medicina de Precisión , Pronóstico , Evaluación de Síntomas , Resultado del Tratamiento
14.
Curr Microbiol ; 78(6): 2183-2193, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33844035

RESUMEN

Toll-like receptors (TLRs) play critical role in the innate recognition of pathogens besides orchestrating innate and adaptive immune responses. These receptors exhibit exquisite specificity for different pathogens or their products and, through a complex network of signalling, generate appropriate immune responses. TLRs induce both pro- and anti-inflammatory signals depending on interactions with the adapter molecules thereby impacting the outcome of infection. Hence, TLR signalling ought to be stringently regulated to avoid harmful effects on the host. Mycobacteria express antigens which are sensed by TLRs leading to activation of various signalling molecules important for initiating the death of infected cells and containment of pathogens. Conversely, it also utilizes TLRs for immune evasion and persistence. Due to the enormous diversity in the repertoire of virulence traits expressed by mycobacteria, genetic variations in TLRs often impair the host's ability to respond to mycobacterial-stress, affecting health and disease manifestations. Thus, understanding TLR signalling is of great importance for insights into host-mycobacterial interactions and designing effective measures for controlling the spread and persistence of the bacterium.


Asunto(s)
Infecciones por Mycobacterium , Mycobacterium , Humanos , Mycobacterium/genética , Transducción de Señal , Receptores Toll-Like/genética
15.
J Neurosci ; 39(27): 5336-5350, 2019 07 03.
Artículo en Inglés | MEDLINE | ID: mdl-31028117

RESUMEN

To make efficient foraging decisions, we must combine information about the values of available options with nonvalue information. Some accounts of ventromedial PFC (vmPFC) suggest that it has a narrow role limited to evaluating immediately available options. We examined responses of neurons in area 14 (a putative macaque homolog of human vmPFC) as 2 male macaques performed a novel foraging search task. Although many neurons encoded the values of immediately available offers, they also independently encoded several other variables that influence choice, but that are conceptually distinct from offer value. These variables include average reward rate, number of offers viewed per trial, previous offer values, previous outcome sizes, and the locations of the currently attended offer. We conclude that, rather than serving as specialized economic value center, vmPFC plays a broad role in integrating relevant environmental information to drive foraging decisions.SIGNIFICANCE STATEMENT Decision makers must often choose whether to take an immediately available option or continue to search for a better one. We hypothesized that this process, which is integral to foraging theory, leaves neural signatures in the brain region ventromedial PFC. Subjects performed a novel foraging task in which they searched through differently valued options and attempted to balance their reward threshold with various time costs. We found that neurons not only encode the values of immediately available offers, but multiplexed these with environmental variables, including reward rate, number of offers viewed, previous offer values, and spatial information. We conclude that vmPFC plays a rich role in encoding and integrating multiple foraging-related variables during economic decisions.


Asunto(s)
Toma de Decisiones/fisiología , Fijación Ocular , Neuronas/fisiología , Corteza Prefrontal/fisiología , Recompensa , Animales , Conducta Animal , Movimientos Oculares , Macaca mulatta , Masculino , Percepción Visual/fisiología
16.
Lancet Oncol ; 20(7): 984-997, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31175001

RESUMEN

BACKGROUND: Patients with relapsed or refractory FLT3 internal tandem duplication (FLT3-ITD)-positive acute myeloid leukaemia have a poor prognosis, including high frequency of relapse, poorer response to salvage therapy, and shorter overall survival than those with FLT3 wild-type disease. We aimed to assess whether single-agent quizartinib, an oral, highly potent and selective type II FLT3 inhibitor, improves overall survival versus salvage chemotherapy. METHODS: QuANTUM-R is a randomised, controlled, phase 3 trial done at 152 hospitals and cancer centres in 19 countries. Eligible patients aged 18 years or older with ECOG performance status 0-2 with relapsed or refractory (duration of first composite complete remission ≤6 months) FLT3-ITD acute myeloid leukaemia after standard therapy with or without allogeneic haemopoietic stem-cell transplantation were randomly assigned (2:1; permuted block size of 6; stratified by response to previous therapy and choice of chemotherapy via a phone-based and web-based interactive response system) to quizartinib (60 mg [30 mg lead-in] orally once daily) or investigator's choice of preselected chemotherapy: subcutaneous low-dose cytarabine (subcutaneous injection of cytarabine 20 mg twice daily on days 1-10 of 28-day cycles); intravenous infusions of mitoxantrone (8 mg/m2 per day), etoposide (100 mg/m2 per day), and cytarabine (1000 mg/m2 per day on days 1-5 of up to two 28-day cycles); or intravenous granulocyte colony-stimulating factor (300 µg/m2 per day or 5 µg/kg per day subcutaneously on days 1-5), fludarabine (intravenous infusion 30 mg/m2 per day on days 2-6), cytarabine (intravenous infusion 2000 mg/m2 per day on days 2-6), and idarubicin (intravenous infusion 10 mg/m2 per day on days 2-4 in up to two 28-day cycles). Patients proceeding to haemopoietic stem-cell transplantation after quizartinib could resume quizartinib after haemopoietic stem-cell transplantation. The primary endpoint was overall survival in the intention-to-treat population. This trial is registered with ClinicalTrials.gov, number NCT02039726, and follow-up is ongoing. FINDINGS: Between May 7, 2014, and Sept 13, 2017, 367 patients were enrolled, of whom 245 were randomly allocated to quizartinib and 122 to chemotherapy. Four patients in the quizartinib group and 28 in the chemotherapy group were not treated. Median follow-up was 23·5 months (IQR 15·4-32·3). Overall survival was longer for quizartinib than for chemotherapy (hazard ratio 0·76 [95% CI 0·58-0·98; p=0·02]). Median overall survival was 6·2 months (5·3-7·2) in the quizartinib group and 4·7 months (4·0-5·5) in the chemotherapy group. The most common non-haematological grade 3-5 treatment-emergent adverse events (within ≤30 days of last dose or >30 days if suspected to be a treatment-related event) for quizartinib (241 patients) and chemotherapy (94 patients) were sepsis or septic shock (46 patients [19%] for quizartinib vs 18 [19%] for chemotherapy), pneumonia (29 [12%] vs eight [9%]), and hypokalaemia (28 [12%] vs eight [9%]). The most frequent treatment-related serious adverse events were febrile neutropenia (18 patients [7%]), sepsis or septic shock (11 [5%]), QT prolongation (five [2%]), and nausea (five [2%]) in the quizartinib group, and febrile neutropenia (five [5%]), sepsis or septic shock (four [4%]), pneumonia (two [2%]), and pyrexia (two [2%]) in the chemotherapy group. Grade 3 QT prolongation in the quizartinib group was uncommon (eight [3%] by central reading, ten [4%] by investigator report); no grade 4 events occurred. There were 80 (33%) treatment-emergent deaths in the quizartinib group (31 [13%] of which were due to adverse events) and 16 (17%) in the chemotherapy group (nine [10%] of which were due to adverse events). INTERPRETATION: Treatment with quizartinib had a survival benefit versus salvage chemotherapy and had a manageable safety profile in patients with rapidly proliferative disease and very poor prognosis. Quizartinib could be considered a new standard of care. Given that there are only a few available treatment options, this study highlights the value of targeting the FLT3-ITD driver mutation with a highly potent and selective FLT3 inhibitor. FUNDING: Daiichi Sankyo.


Asunto(s)
Benzotiazoles/uso terapéutico , Leucemia Mieloide Aguda/tratamiento farmacológico , Leucemia Mieloide Aguda/mortalidad , Recurrencia Local de Neoplasia/tratamiento farmacológico , Recurrencia Local de Neoplasia/mortalidad , Compuestos de Fenilurea/uso terapéutico , Terapia Recuperativa , Adulto , Anciano , Benzotiazoles/farmacología , Femenino , Humanos , Leucemia Mieloide Aguda/genética , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/genética , Compuestos de Fenilurea/farmacología , Tasa de Supervivencia , Secuencias Repetidas en Tándem , Tirosina Quinasa 3 Similar a fms/antagonistas & inhibidores , Tirosina Quinasa 3 Similar a fms/genética
18.
Health Qual Life Outcomes ; 16(1): 66, 2018 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-29669568

RESUMEN

BACKGROUND: Health state (HS) utility values for patients with acute myeloid leukemia (AML), a hematological malignancy, are not available in the United Kingdom (UK). This study aims to develop clinically sound HSs for previously untreated patients with AML and to assign utility values based on preferences of the general UK population. METHODS: This study was conducted in the UK and comprised 2 stages. During the first stage, AML HSs were drafted based on evidence from a literature review of AML clinical and health-related quality-of-life studies (published January 2000-June 2016) and patient-reported outcome measures previously used in this population. A panel of UK hematologists with AML experience validated the clinical relevance and accuracy of the HSs. During the second stage, validated HSs were valued in an elicitation survey with a representative UK population sample using the time trade-off (TTO) method. Descriptive statistics and bivariate tests were obtained and performed. RESULTS: A total of eight HSs were developed and clinically validated, including treatment with chemotherapy, consolidation therapy, transplant, graft-vs-host disease (GvHD), remission, relapse, refractory, and functionally cured. In total, 125 adults participated (mean age, 49.6 years [range, 18-87 years], 52.8% female). Mean (95% confidence interval [CI]) TTO preference values (n = 120), ranked from lowest (worst HS) to highest (best HS) were as follows: refractory - 0.11 (- 0.21 to - 0.01), relapse 0.10 (0.00-0.20), transplant 0.28 (0.20-0.37), treatment with chemotherapy 0.36 (0.28-0.43), GvHD 0.43 (0.36-0.50), consolidation 0.46 (0.40-0.53), remission 0.62 (0.57-0.67), and functionally cured 0.76 (0.72-0.79). Mean (95% CI) visual analog scale preference values followed the same rank order, ranging from 0.15 (0.13-0.17) for refractory to 0.71 (0.68-0.73) for functionally cured. CONCLUSIONS: To our knowledge, this is the first study to report utility values for AML from the UK societal perspective. Participants were able to distinguish differences in severity among AML HSs, and preference values were consistent with clinical perception of HS severity. HS preference values observed in this study may be useful in future evaluations of treatment benefit, including cost-effectiveness analyses and improved patient well-being.


Asunto(s)
Actitud Frente a la Salud , Leucemia Mieloide Aguda/psicología , Prioridad del Paciente , Calidad de Vida/psicología , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Leucemia Mieloide Aguda/terapia , Masculino , Persona de Mediana Edad , Factores Sexuales , Encuestas y Cuestionarios , Reino Unido , Escala Visual Analógica , Adulto Joven
20.
Nutrients ; 16(9)2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38732588

RESUMEN

Nearly every fifth adult in the United States and many older adults worldwide are affected by chronic kidney disease (CKD), which can progress to kidney failure requiring invasive kidney replacement therapy. In this review, we briefly examine the pathophysiology of CKD and discuss emerging mechanisms involving the physiological resolution of kidney injury by transforming growth factor beta 1 (TGFß1) and interleukin-11 (IL-11), as well as the pathological consequences of IL-11 overproduction, which misguides repair processes, ultimately culminating in CKD. Taking these mechanisms into account, we offer an overview of the efficacy of plant-dominant dietary patterns in preventing and managing CKD, while also addressing their limitations in terms of restoring kidney function or preventing kidney failure. In conclusion, this paper outlines novel regeneration strategies aimed at developing a reno-regenerative diet to inhibit IL-11 and promote repair mechanisms in kidneys affected by CKD.


Asunto(s)
Interleucina-11 , Insuficiencia Renal Crónica , Humanos , Interleucina-11/metabolismo , Insuficiencia Renal Crónica/dietoterapia , Riñón/fisiopatología , Riñón/metabolismo , Dieta , Animales , Factor de Crecimiento Transformador beta1/metabolismo
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