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1.
Blood ; 141(20): 2470-2482, 2023 05 18.
Artículo en Inglés | MEDLINE | ID: mdl-36821767

RESUMEN

Relapse after CD19-directed chimeric antigen receptor T-cell (CAR-T) therapy for large B-cell lymphoma (LBCL) is commonly ascribed to antigen loss or CAR-T exhaustion. Multiantigen targeting and programmed cell death protein-1 blockade are rational approaches to prevent relapse. Here, we test CD19/22 dual-targeting CAR-T (AUTO3) plus pembrolizumab in relapsed/refractory LBCL (NCT03289455). End points include toxicity (primary) and response rates (secondary). Fifty-two patients received AUTO3 and 48/52 received pembrolizumab. Median age was 59 years (range, 27-83), 46/52 had stage III/ IV disease and median follow-up was 21.6 months. AUTO3 was safe; grade 1-2 and grade 3 cytokine release syndrome affected 18/52 (34.6%) and 1/52 (1.9%) patients, neurotoxicity arose in 4 patients (2/4, grade 3-4), and hemophagocytic lymphohistiocytosis affected 2 patients. Outpatient administration was tested in 20 patients, saving a median of 14 hospital days per patient. Overall response rates were 66% (48.9%, complete response [CR]; 17%, partial response). Median duration of remission (DOR) for CR patients was not reached and for all responding patients was 8.3 months (95% confidence interval [CI]: 3.0-not evaluable). 54.4% (CI: 32.8-71.7) of CR patients and 42.6% of all responding patients were projected to remain progression-free at ≥12 months. AUTO3 ± pembrolizumab for relapsed/refractory LBCL was safe and delivered durable remissions in 54.4% of complete responders, associated with robust CAR-T expansion. Neither dual-targeting CAR-T nor pembrolizumab prevented relapse in a significant proportion of patients, and future developments include next-generation-AUTO3, engineered for superior expansion in vivo, and selection of CAR binders active at low antigen densities.


Asunto(s)
Linfoma de Células B Grandes Difuso , Receptores Quiméricos de Antígenos , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Inmunoterapia Adoptiva , Linfocitos T , Antígenos CD19 , Lectina 2 Similar a Ig de Unión al Ácido Siálico
2.
Br J Haematol ; 204(5): 1687-1696, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38488312

RESUMEN

The objective of this guideline, prepared by the ALL subgroup of the Advanced Cell Therapy Sub-Committee of BSBMTCT (British Society of Blood and Marrow Transplantation), is to provide healthcare professionals with practical guidance on the preparation of children and young adults with B-acute lymphoblastic leukaemia from the point of referral to that of admission for CAR T-cell treatment. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) nomenclature was used to evaluate the levels of evidence and to assess the strength of recommendations. The GRADE criteria can be found at http://www.gradeworkinggroup.org.


Asunto(s)
Inmunoterapia Adoptiva , Leucemia-Linfoma Linfoblástico de Células Precursoras B , Humanos , Niño , Inmunoterapia Adoptiva/métodos , Adulto Joven , Adolescente , Leucemia-Linfoma Linfoblástico de Células Precursoras B/terapia , Adulto , Receptores Quiméricos de Antígenos/uso terapéutico
4.
Cytotherapy ; 25(3): 323-329, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36513573

RESUMEN

BACKGROUND AIMS: The most widely accepted starting materials for chimeric antigen receptor T-cell manufacture are autologous CD3+ T cells obtained via the process of leukapheresis, also known as T-cell harvest. As this treatment modality gains momentum and apheresis units struggle to meet demand for harvest slots, strategies to streamline this critical step are warranted. METHODS: This retrospective review of 262 T-cell harvests, with a control cohort of healthy donors, analyzed the parameters impacting CD3+ T-cell yield in adults with B-cell malignancies. The overall aim was to design a novel predictive algorithm to guide the required processed blood volume (PBV) (L) on the apheresis machine to achieve a specific CD3+ target yield. RESULTS: Factors associated with CD3+ T-cell yield on multivariate analysis included peripheral blood CD3+ count (natural log, ×109/L), hematocrit (HCT) and PBV with coefficients of 0.86 (95% confidence interval [CI], 0.80-0.92, P < 0.001), 1.30 (95% CI, 0.51-2.08, P = 0.001) and 0.09 (95% CI, 0.07-0.11, P < 0.001), respectively. The authors' model, incorporating CD3+ cell count, HCT and PBV (L), with an adjusted R2 of 0.87 and root-mean-square error of 0.26 in the training dataset, was highly predictive of CD3+ cell yield in the testing dataset. An online application to estimate PBV using this algorithm can be accessed at https://cd3yield.shinyapps.io/cd3yield/. CONCLUSIONS: The authors propose a transferrable model that incorporates clinical and laboratory variables accessible pre-harvest for use across the field of T-cell therapy. Pending further validation, such a model may be used to generate an individual leukapheresis plan and streamline the process of cell harvest, a well-recognized bottleneck in the industry.


Asunto(s)
Receptores Quiméricos de Antígenos , Adulto , Humanos , Linfocitos T , Recuento de Células Sanguíneas , Trasplante Autólogo , Leucaféresis , Algoritmos
5.
Compr Psychiatry ; 122: 152374, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36758338

RESUMEN

INTRODUCTION: Suicidality among young people is a significant societal issue. The current study conducted a meta-analysis of community and clinical interventions targeting suicide attempts, self-harm, and suicidal ideation in adolescents. METHODS: Interventions targeting suicide attempts, self-harm and suicidal ideation were identified by searching PsychINFO, Medline, CINAHL and Embase in line with the PRISMA statement. Study quality was determined using a risk of bias tool. Meta-analyses examined the efficacy of the interventions. Effect sizes were calculated for suicidal ideation data (continuous data) using Hedge's g for standardised mean differences. Suicide attempts and self-harm (dichotomous data) were calculated using odds ratios (ORs). RESULTS: Seventeen RCTs were included in the meta-analysis. No significant differences were found between treatment and control groups on measures of suicide attempts or self-harm. A small effect-size was observed on measures of suicidal ideation (g = 0.47). A secondary meta-analysis investigated change over time in treatment as usual conditions, finding significant large effect-sizes for suicide attempts (OR = 18.67), self-harm (OR = 12.77), and suicidal ideation (g = 0.86). LIMITATIONS: The methodological decision to focus on specific outcomes over a broad definition of self-harm excluded some papers, which have been included in other reviews. It is unlikely to have significantly affected the overall results. The review was not preregistered. CONCLUSIONS: These twin findings highlight the importance overcoming the methodological difficulty of discerning effective interventions during a period of baseline improvement. We suggest that future trials should move away from broadly addressing "suicidality/self-harm" and encourage a greater targeting of at-risk individuals.


Asunto(s)
Conducta del Adolescente , Conducta Autodestructiva , Humanos , Adolescente , Ideación Suicida , Intento de Suicidio
6.
Br J Haematol ; 198(3): 492-502, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35485402

RESUMEN

CD19 CAR-T have emerged as a new standard treatment for relapsed/refractory (r/r) large B-cell lymphoma (LBCL). CAR-T real-world (RW) outcomes published to date suggest significant variability across countries. We provide results of a large national cohort of patients intended to be treated with CAR-T in the UK. Consecutive patients with r/r LBCL approved for CAR-T by the National CAR-T Clinical Panel between December 2018 and November 2020 across all UK CAR-T centres were included. 404/432 patients were approved [292 axicabtagene ciloleucel (axi-cel), 112 tisagenlecleucel (tisa-cel)], 300 (74%) received the cells. 110/300 (38.3%) patients achieved complete remission (CR) at 6 months (m). The overall response rate was 77% (52% CR) for axi-cel, 57% (44% CR) for tisa-cel. The 12-month progression-free survival was 41.8% (axi-cel) and 27.4% (tisa-cel). Median overall survival for the intention-to-treat population was 10.5 m, 16.2 m for infused patients. The incidence of grade ≥3 cytokine release syndrome and neurotoxicity were 7.6%/19.6% for axi-cel and 7.9%/3.9% for tisa-cel. This prospective RW population of CAR-T eligible patients offers important insights into the clinical benefit of CD19 CAR-T in LBCL in daily practice. Our results confirm long-term efficacy in patients receiving treatment similar to the pivotal trials, but highlight the significance of early CAR-T failure.


Asunto(s)
Inmunoterapia Adoptiva , Linfoma de Células B Grandes Difuso , Receptores Quiméricos de Antígenos , Antígenos CD19/uso terapéutico , Síndrome de Liberación de Citoquinas , Humanos , Inmunoterapia Adoptiva/métodos , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Estudios Prospectivos , Reino Unido/epidemiología
8.
Cytotherapy ; 21(3): 327-340, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30685216

RESUMEN

Clinical trials of adoptively transferred CD19 chimeric antigen receptor (CAR) T cells have delivered unprecedented responses in patients with relapsed refractory B-cell malignancy. These results have prompted Food and Drug Administration (FDA) approval of two CAR T-cell products in this high-risk patient population. The widening range of indications for CAR T-cell therapy and increasing patient numbers present a significant logistical challenge to manufacturers aiming for reproducible delivery systems for high-quality clinical CAR T-cell products. This review discusses current and novel CAR T-cell processing methodologies and the quality control systems needed to meet the increasing clinical demand for these exciting new therapies.


Asunto(s)
Inmunoterapia Adoptiva/métodos , Instalaciones Industriales y de Fabricación/normas , Neoplasias/terapia , Control de Calidad , Receptores Quiméricos de Antígenos , Antígenos CD19/inmunología , Eliminación de Componentes Sanguíneos/métodos , Supervivencia Celular , Criopreservación/métodos , Endotoxinas/análisis , Humanos , Inmunoterapia Adoptiva/efectos adversos , Activación de Linfocitos , Mycoplasma , Linfocitos T/inmunología , Transducción Genética/métodos
9.
Cytotherapy ; 25(8): 902, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37140498
12.
Int J Palliat Nurs ; 23(2): 88-97, 2017 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-28245162

RESUMEN

This paper reports the findings from a Delphi Study undertaken to identify the research priorities in children's palliative care in Ireland. Palliative care for children is a small and highly specialised field of healthcare that focuses on improving the quality of life of children living with, or dying from, a life-limiting condition. Ideally, support for children requiring palliative care begins at the time of diagnosis, which for many children with life-limiting conditions can be from birth. There is a notable overlap between the needs of children requiring palliative care and those with disabilities and other complex care needs, resulting in care being provided by a range of voluntary and statutory agencies. As a new specialty, there is a need to develop an evidence-based approach to providing children's palliative care. In order to do this in a systematic way, identification of the research priorities in children's palliative care within Ireland is required.


Asunto(s)
Cuidados Paliativos , Pediatría , Investigación , Bases de Datos Factuales , Técnica Delphi , Necesidades y Demandas de Servicios de Salud , Cuidados Paliativos al Final de la Vida , Humanos , Irlanda , Padres , Calidad de Vida , Hermanos , Cuidado Terminal
15.
Gut ; 63(12): 1913-20, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25021423

RESUMEN

OBJECTIVE: The commensal microbiota, host immunity and metabolism participate in a signalling network, with diet influencing each component of this triad. In addition to diet, many elements of a modern lifestyle influence the gut microbiota but the degree to which exercise affects this population is unclear. Therefore, we explored exercise and diet for their impact on the gut microbiota. DESIGN: Since extremes of exercise often accompany extremes of diet, we addressed the issue by studying professional athletes from an international rugby union squad. Two groups were included to control for physical size, age and gender. Compositional analysis of the microbiota was explored by 16S rRNA amplicon sequencing. Each participant completed a detailed food frequency questionnaire. RESULTS: As expected, athletes and controls differed significantly with respect to plasma creatine kinase (a marker of extreme exercise), and inflammatory and metabolic markers. More importantly, athletes had a higher diversity of gut micro-organisms, representing 22 distinct phyla, which in turn positively correlated with protein consumption and creatine kinase. CONCLUSIONS: The results provide evidence for a beneficial impact of exercise on gut microbiota diversity but also indicate that the relationship is complex and is related to accompanying dietary extremes.


Asunto(s)
Dieta/efectos adversos , Proteínas en la Dieta/metabolismo , Ejercicio Físico/fisiología , Tracto Gastrointestinal/microbiología , Microbiota/fisiología , Deportes/fisiología , Adulto , Biomarcadores/metabolismo , Índice de Masa Corporal , Creatina Quinasa/sangre , Análisis de los Alimentos , Humanos , Inmunidad/fisiología , Inflamación/metabolismo , Masculino , Fenómenos Fisiológicos en la Nutrición Deportiva
16.
Br J Haematol ; 186(2): 327-329, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30768682
17.
Lancet Infect Dis ; 24(4): e256-e265, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38310904

RESUMEN

Chimeric antigen receptor (CAR) T-cell therapy leads to durable remissions in relapsed B-cell cancers, but treatment-associated immunocompromise leads to a substantial morbidity and mortality risk from atypical infection. Mucormycosis is an aggressive and invasive fungal infection with a mortality risk of 40-80% in patients with haematological malignancies. In this Grand Round, we report a case of mucormycosis in a 54-year-old patient undergoing CAR T-cell therapy who reached complete clinical control of Mucorales with combined aggressive surgical debridement, antifungal pharmacotherapy, and reversal of underlying risk factors, but with substantial morbidity from extensive oro-facial surgery affecting the patient's speech and swallowing. For broader context, we present our case alongside an US Food and Drugs Administration adverse events reporting database analysis and a review of the literature to fully evaluate the clinical burden of mucormycosis in patients treated with CAR T-cell therapy. We discuss epidemiology, clinical features, diagnostic tools, and current frameworks for treatment and prophylaxis. We did this analysis to promote increased vigilance for mucormycosis among physicians specialising in CAR T-cell therapy and microbiologists and to illustrate the importance of early initiation of therapy to effectively manage this condition. Mucormycosis prevention and early diagnosis, through targeted surveillance and mould prevention in patients at highest risk and Mucorales-specific screening assays, is likely to be key to improving outcomes in patients treated with CAR T-cell therapy.


Asunto(s)
Mucormicosis , Receptores Quiméricos de Antígenos , Estados Unidos , Humanos , Persona de Mediana Edad , Inmunoterapia Adoptiva/efectos adversos , Receptores Quiméricos de Antígenos/uso terapéutico , Mucormicosis/etiología , Mucormicosis/terapia , Receptores de Antígenos de Linfocitos T , United States Food and Drug Administration , Recurrencia Local de Neoplasia/etiología , Tratamiento Basado en Trasplante de Células y Tejidos
18.
Artículo en Inglés | MEDLINE | ID: mdl-38408794

RESUMEN

Combination preparations of oxycodone/naloxone are marketed to aid in the management of opioid induced bowel dysfunction, with caution advised in prescribing in cases of liver dysfunction.This case series demonstrates four cases of patients with normal liver function tests who developed significant opioid toxicity on conversion from combination oxycodone/naloxone to oxycodone at equivalent doses, necessitating significant dose reduction.In each case, a cause for intra-hepatic shunting such as cirrhosis, porto-systemic collaterals or thrombosis were identified, highlighting these as cautionary features when prescribing combination preparations of oxycodone/naloxone and the possible need for dose reduction if converting to oxycodone.

19.
Ir J Med Sci ; 193(2): 577-583, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37606800

RESUMEN

BACKGROUND: Palliative radiotherapy (PRT) is commonly used to treat symptoms of advanced cancer. PRT has been associated with elevated 30-day mortality (30DM). A Rapid Access Palliative Clinic (RAPC) can streamline the treatment process for patients receiving treatment. AIMS: We reviewed the PRT practices in a radiation oncology network in Ireland, and the implementation of a RAPC. Patient outcomes were assessed to inform future treatment decisions. METHODS: A retrospective review of all patients who received PRT over 6 months in 2018 in St. Luke's Radiation Oncology Network (SLRON) was undertaken. We assessed 30DM rates, demographics and referral to specialist palliative care (SPC) services. Subsequently, a retrospective analysis was conducted of a RAPC which ran for 6 months from 2019 to 2020. We assessed treatment data and mortality. RESULTS: Over 6 months, 645 patients commenced PRT in the SLRON. The 30DM for this cohort was 15.8% (n = 102), with most patients having lung primaries. Of the 30DM cohort, only 55% (n = 56) were referred to SPC services and only 26.4% (n = 27) had performance status recorded. Over 6 months, 40 patients attended 28 RAPCs. Of these, 88% (n = 35) received PRT. Single fraction therapy was utilised in 60% and 48% of patients underwent CT simulation and treatment on the same day. Ultimately, 75% of patients received SPC referral. CONCLUSIONS: Referral rates to SPC services and documentation of performance status were low in our 30DM retrospective review cohort. The RAPC facilitated quick treatment turnaround, fewer hospital visits and referral to SPC services.


Asunto(s)
Neoplasias , Oncología por Radiación , Humanos , Cuidados Paliativos , Estudios Retrospectivos , Neoplasias/radioterapia , Instituciones de Atención Ambulatoria
20.
Hemasphere ; 8(1): e29, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38434533

RESUMEN

Infection has emerged as the chief cause of non-relapse mortality (NRM) post CD19-targeting chimeric antigen receptor T-cell therapy (CAR-T) therapy. Even though up to 50% of patients may remain infection-free, many suffer multiple severe, life-threatening, or fatal infectious events. The primary aim of this study was to explore severe and life-threatening infections post licensed CAR-T therapy in large B-cell lymphoma, with a focus on the role of disease burden and disease sites in assessing individual risk. We sought to understand the cohort of patients who experience ≥2 infections and those at the highest risk of infectious NRM. Our analysis identifies a higher disease burden after bridging therapy as associated with infection events. Those developing ≥2 infections emerged as a uniquely high-risk cohort, particularly if the second (or beyond) infection occurred during an episode of immune effector cell-associated neurotoxicity syndrome (ICANS) or while on steroids and/or anakinra for ICANS. Herein, we also describe the first reported cases of "CAR-T cold sepsis," a phenomenon characterized by the lack of an appreciable systemic inflammatory response at the time of detection of infection. We propose a risk-based strategy to encourage heightened clinician awareness of cold sepsis, with a view to reducing NRM.

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