1,875 results match your criteria: "University Hospitals g Leuven; Leuven Cancer Institute LKI[Affiliation]"

Identification of HER2-positive breast cancer molecular subtypes with potential clinical implications in the ALTTO clinical trial.

Nat Commun

November 2024

Breast Cancer Translational Research Laboratory, Institut Jules Bordet, Hôpital Universitaire de Bruxelles (H.U.B), Université Libre de Bruxelles (ULB), Brussels, Belgium.

In HER2-positive breast cancer, clinical outcome and sensitivity to HER2-targeted therapies are influenced by both tumor and microenvironment features. However, we are currently unable to depict the molecular heterogeneity of this disease with sufficient granularity. Here, by performing gene expression profiling in HER2-positive breast cancers from patients receiving adjuvant trastuzumab in the ALTTO clinical trial (NCT00490139), we identify and characterize five molecular subtypes associated with the risk of distant recurrence: immune-enriched, proliferative/metabolic-enriched, mesenchymal/stroma-enriched, luminal, and ERBB2-dependent.

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Purpose: To investigate the predictive value of RECIST response within 3, 6, or 12 months on long-term survival, and explore differences between nivolumab+ipilimumab and nivolumab monotherapy, we analyzed pooled 5-year data of 935 responder and non-responder patients at various time points after treatment initiation in CheckMate 069, 066, and 067 studies.

Patients And Methods: Treatment-naive advanced melanoma patients received nivolumab+ipilimumab or nivolumab monotherapy. To decrease immortal time bias, 3-, 6-, or 12-month overall survival (OS) and progression-free survival (PFS) landmark analyses were performed.

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Nivolumab plus Ipilimumab in Microsatellite-Instability-High Metastatic Colorectal Cancer.

N Engl J Med

November 2024

From Sorbonne Université, Hôpital Saint Antoine, Assistance Publique-Hôpitaux de Paris, Unité Mixte de Recherche Scientifique 938, and SIRIC CURAMUS, Paris (T.A.), Hopital Foch, Suresnes (J.B.), and Institut Paoli-Calmettes (C.F.), and La Timone, Aix Marseille Université (L.D.), Marseille - all in France; Vall d'Hebron University Hospital and Institute of Oncology (VHIO), Universitat Autònoma de Barcelona, Barcelona (E.E.), Hospital Universitario Virgen del Rocío, Seville (M.L.L.), Institut Català d'Oncologia, Hospital Universitario Germans Trias i Pujol, Badalona (J.L.M.M.), and Hospital Universitario 12 de Octubre, Imas12, Medicine Department-UCM, Madrid (R.G.-C.) - all in Spain; University Hospitals Gasthuisberg and University of Leuven (KU Leuven), Leuven, Belgium (E.V.C.); the University Hospital of Southern Denmark, Vejle Hospital, Vejle (L.H.J.); Hospital Universitario Fundacion Favaloro, Buenos Aires (G.M.); Centrul de Oncologie Sf Nectarie, Craiova, Romania (M.S.); the National Cancer Center Hospital East, Chiba, Japan (T.Y.); Shanghai East Hospital, Shanghai, China (J.L.); the University of Southern California Norris Comprehensive Cancer Center, Los Angeles (H.-J.L.); Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome (G.T.), and Veneto Institute of Oncology IOV-IRCCS, Padua (S.L.) - both in Italy; the Netherlands Cancer Institute, Amsterdam (M.C.); Cancer Research SA, Adelaide, SA, Australia (R.J.); Hematology-Oncology Practice Eppendorf (HOPE) and University Cancer Center Hamburg (UCCH), Hamburg, Germany (E.G.); the Institute of Cancer of São Paulo, São Paulo (M.I.B.); Adana City Education and Research Hospital, Adana, Turkey (T. Cil); and Bristol Myers Squibb, Princeton, NJ (E.C., T. Chen, M.L., M.D., S.A.).

Background: Patients with microsatellite-instability-high (MSI-H) or mismatch-repair-deficient (dMMR) metastatic colorectal cancer have poor outcomes with standard chemotherapy with or without targeted therapies. Nivolumab plus ipilimumab has shown clinical benefit in nonrandomized studies of MSI-H or dMMR metastatic colorectal cancer.

Methods: In this phase 3 open-label trial, we randomly assigned patients with unresectable or metastatic colorectal cancer and MSI-H or dMMR status according to local testing to receive, in a 2:2:1 ratio, nivolumab plus ipilimumab, nivolumab alone, or chemotherapy with or without targeted therapies.

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Mevalonate kinase deficiency (MKD), a rare auto-inflammatory disorder, arises from mutations in the gene, disrupting isoprenoid biosynthesis, and affecting cellular processes. This comprehensive review provides an updated perspective on MKD, including its aetiology, pathogenesis, diagnostic modalities, and therapeutic strategies. Based on recent research and clinical advances, our objective is to bridge the knowledge gaps in the 2015 SHARE guidelines.

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Objectives: This study evaluated the psychometric properties of the ceroid lipofuscinosis type 2 Quality of Life (CLN2 QoL) questionnaire.

Methods: Data from children with CLN2 disease aged 3-16 years receiving cerliponase alfa in the BMN 190-201 and BMN 190-202 clinical studies, collected via purposive sampling, were used to assess convergent and divergent validity, internal consistency and reliability. The clinically important difference (CID) was estimated with distribution- and anchor-based methods.

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Hepatic glucose production rises with the histological severity of metabolic dysfunction-associated steatohepatitis.

Cell Rep Med

November 2024

Cardiometabolic Risk Unit, Institute of Clinical Physiology, CNR, 56121 Pisa, Italy; Diabetes Division, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA. Electronic address:

Metabolic dysfunction-associated steatotic liver disease (MASLD) and steatohepatitis (MASH) are associated with a high prevalence of type 2 diabetes (T2D). Individuals with MASLD exhibit insulin resistance (IR) and hyperglycemia, but it is unclear whether hepatic glucose production (HGP) is increased with MASLD severity. We evaluated HGP in a cohort of histologically characterized individuals with MASL/MASH using stable isotope infusion (6,6-H-glucose, U-H-glycerol) and liver-specific genome-scale metabolic models (GEMs).

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Article Synopsis
  • Prostate cancer treatment resistance is a major challenge, with genomic studies revealing how cancer cells evade therapies, yet the tumor microenvironment's (TME) role remains unclear.
  • A study using advanced techniques on samples from 120 patients offers a detailed transcriptomic profile of the prostate TME throughout the treatment process.
  • The research highlights a unique cell type called club-like cells that interact with the immune system, suggesting their involvement in inflammation and resistance to androgen deprivation therapy, indicating they could be potential targets for new treatments.
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The study aimed to develop structured, expert-based clinical guidance on the prenatal and postnatal management of hemolytic disease of the fetus and newborn. A Delphi procedure was conducted among an international panel of experts in fetal medicine, neonatology, and hematology. Experts were selected based on their expertise, relevant publications, and affiliations.

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Background: Achieving competence in endoscopic retrograde cholangiopancreatography (ERCP) requires extensive training. Recognizing the potential of simulator-based education for safe and effective skill development, we aimed to assess whether initial training with the Boškoski-Costamagna ERCP Trainer (BCT) is beneficial compared with conventional training alone (i.e.

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Background: Etrasimod is an oral, once-daily (QD), selective sphingosine 1-phosphate (S1P) receptor modulator for the treatment of moderately to severely active ulcerative colitis (UC). It is known that non-serious treatment-emergent adverse events (TEAEs) may not lead to UC drug discontinuation but can affect treatment tolerability.

Objectives: This post hoc analysis evaluated the incidence of specific, common, non-serious TEAEs reported in the etrasimod UC clinical programme and the characteristics of affected patients.

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Article Synopsis
  • - The PROPEL trial studied the effects of cipaglucosidase alfa plus miglustat (cipa+mig) versus alglucosidase alfa plus placebo (alg+pbo) on adults with late-onset Pompe disease (LOPD) over 52 weeks, finding improvements in motor and respiratory function for those switching to cipa+mig.
  • - Patient-reported outcomes (PROs) evaluated included various measures of physical function, fatigue, and overall quality of life, with statistical analyses comparing responses between the two treatment groups.
  • - Results showed that cipa+mig significantly improved patient-reported impressions of change in ability to move around and generally outperformed alg+pbo in most PRO measures, indicating enhanced
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Association of Initial Side of Brain Atrophy With Clinical Features and Disease Progression in Patients With Frontotemporal Dementia.

Neurology

December 2024

From the Alzheimer's Disease and Other Cognitive Disorders Unit (S.B.-E., J.J.-P., A.P.M., M.B., A.L., R.S.-V.), Neurology Service, Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Universitat de Barcelona, Spain; VIB Center for Molecular Neurology (M.V., R.R.); Department of Biomedical Sciences (M.V., R.R.), University of Antwerp, Belgium; Dementia Research Centre (A.B., L.L.R., P.H.F., E.F.-B., J.D.R.), Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, United Kingdom; Department of Neurology (J.C.V.S., L.C.J., H.S.), Erasmus Medical Centre, Rotterdam, Netherlands; Clinique Interdisciplinaire de Mémoire (R.L.), Département des Sciences Neurologiques, CHU de Québec, and Faculté de Médecine, Université Laval, Canada; Division of Neurogeriatrics, Bioclinicum (C.G.), Department of Neurobiology, Care Sciences and Society; Center for Alzheimer Research, Karolinska Institutet; Unit for Hereditary Dementias (C.G.), Theme Inflammation and Aging, Karolinska University Hospital, Solna, Sweden; Department of Biomedical (D.G.), Surgical and Dental Sciences, University of Milan; Fondazione Ca' Granda (D.G.), IRCCS Ospedale Policlinico, Milan, Italy; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Service (R.V.), University Hospitals Leuven; Leuven Brain Institute (R.V.), KU Leuven, Belgium; Faculty of Medicine (A.M.), University of Lisbon, Portugal; Fondazione IRCCS Istituto Neurologico Carlo Besta (P.T.), Milano, Italy; Neurology Service (I.S.), Faculty of Medicine, University Hospital of Coimbra (HUC), University of Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Division of Psychology Communication and Human Neuroscience (A.G.), Wolfson Molecular Imaging Centre, University of Manchester, United Kingdom; Department of Nuclear Medicine (A.G.), Center for Translational Neuro- and Behavioral Sciences, University Medicine Essen; Department of Geriatric Medicine (A.G.), Klinikum Hochsauerland, Arnsberg; Department of Neurology (J.L.), Ludwig-Maximilians Universität München; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster of Systems Neurology (SyNergy) (J.L.), Munich, Germany; Department of Neurofarba (S.S.), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S.S.), Florence, Italy; Department of Neurology (M.O.), University of Ulm, Germany; Univ Lille (F.P.), France; Department of Psychiatry (S.D.), McGill University Health Centre, McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University, Montreal, Québec, Canada; Medical Sciences Division (C.B.), Nuffield Department of Clinical Neurosciences, University of Oxford, Department of Brain Sciences (C.B.), Imperial College London, United Kingdom; Sorbonne Université (I.L.B.), Paris Brain Institute-Institut du Cerveau-ICM, Inserm U1127, CNRS UMR 7225; Centre de référence des démences rares ou précoces (I.L.B.), IM2A, Département de Neurologie; Département de Neurologie (I.L.B.), AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), Ontario; Sunnybrook Health Sciences Centre (M.M.), Sunnybrook Research Institute, University of Toronto, Canada; Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust (J.B.R.), University of Cambridge, United Kingdom; Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Germany; Cognitive Disorders Unit (F.M.), Department of Neurology, Donostia Universitary Hospital, San Sebastian, Spain; Neurology Unit (B.B.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; and Department of Neuroscience (R.R.), Mayo Clinic, Jacksonville, FL.

Background And Objectives: Pathogenic variants in the gene cause frontotemporal dementia (FTD-) with marked brain asymmetry. This study aims to assess whether the disease progression of FTD- depends on the initial side of the atrophy. We also investigated the potential use of brain asymmetry as a biomarker of the disease.

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Background: The European Organization of Research and Treatment of Cancer (EORTC) has recently developed and validated a patient-reported outcome measure (PROM) for sexual health (SH) in cancer patients. Here, we present results from a secondary analysis of the EORTC QLQ-SH22 validation study. The objective was to investigate the impact of cancer treatment on SH over the disease trajectory into survivorship in patients who underwent curative treatment.

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Background: The phase II PRIMMO trial investigated a pembrolizumab-based regimen in patients with recurrent and/or metastatic cervical (CC) or endometrial (EC) carcinoma who had at least one prior line of systemic therapy. Here, exploratory studies of the gut microbiome (GM) are presented.

Methods: The microbial composition of 77 longitudinal fecal samples obtained from 35 patients (CC, n = 15; EC, n = 20) was characterized using 16S rRNA gene sequencing.

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Letermovir and maribavir have demonstrated efficacy in the prevention and treatment, respectively, of immunosuppressed patients with cytomegalovirus (CMV) infection and disease. These patients often have polypharmacy making them at risk for drug-drug interactions. Both letermovir and maribavir can be perpetrators and victims of drug-drug interactions.

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Background: Lymphatic disorders such as protein-losing enteropathy, plastic bronchitis, and chylothorax are important complications of the Fontan circulation and ultimately result in an increased risk of early death. Several European centers are now performing lymphatic procedures. The aim of this study is to map the extent of these lymphatic disorders and treatments provided across European pediatric cardiology centers.

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Article Synopsis
  • Most patients with acute ischemic stroke and large vessel occlusion are initially evaluated at non-thrombectomy centers before being transferred to specialized facilities for treatment, leading to potential delays and worse outcomes.
  • The review highlights that changes in clinical and radiological status during transfers vary among patients and can affect their recovery, emphasizing the need for better care during this critical time.
  • It also explores potential strategies, like penumbral protection, to minimize damage during transfer and outlines important factors to consider when designing clinical trials aimed at improving patient outcomes.
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Background: The serum antiglycopeptidolipid core IgA antibody test has been proposed as a diagnostic tool for Mycobacterium avium complex pulmonary diseases. Cross-reactivity with other nontuberculous mycobacteria (NTM), including Mycobacterium abscessus, indicates that it may have a role as a broader screening test for nontuberculous mycobacterial pulmonary disease (NTM-PD). NTM-PD is believed to be underdiagnosed in patients with bronchiectasis.

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Background And Aims: Normalization of high-sensitivity C-reactive protein [hs-CRP] and fecal calprotectin [FCP] are suggested Crohn's disease [CD] intermediate treatment targets. This analysis evaluates achievement of biomarker normalization and the relationship between improvements in biomarker concentrations and clinical and endoscopic outcomes among patients treated with risankizumab.

Methods: This post hoc analysis included patients with moderately to severely active CD and elevated baseline hs-CRP [> 5 mg/L] or FCP [> 250 µg/g] concentrations from the 12-week ADVANCE and MOTIVATE induction studies, and the 52-week FORTIFY maintenance study.

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Implementing verifiable oncological imaging by quality assurance and optimization (i‑Violin) : Protocol for a European multicenter study.

Radiologie (Heidelb)

November 2024

Institute of Medical Technology, Faculty for electrical engineering and Information Technology, Otto-von-Guericke-University Magdeburg, Otto-Hahn-Str. 2, 39106, Magdeburg, Germany.

Background: Advanced imaging techniques play a pivotal role in oncology. A large variety of computed tomography (CT) scanners, scan protocols, and acquisition techniques have led to a wide range in image quality and radiation exposure. This study aims at implementing verifiable oncological imaging by quality assurance and optimization (i-Violin) through harmonizing image quality and radiation dose across Europe.

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Coronary Physiological Indexes to Evaluate Myocardial Ischemia in Patients With Aortic Stenosis Undergoing Valve Replacement.

JACC Cardiovasc Interv

October 2024

Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; Department of Cardiovascular Medicine, University Hospitals Leuven, Leuven Belgium.

Background: The evaluation of myocardial ischemia in patients with aortic valve stenosis (AS) with concomitant coronary artery disease (CAD) and possible microvascular dysfunction (MVD) is challenging because fractional flow reserve (FFR) and the resting full-cycle ratio (RFR) have not been validated in this clinical setting.

Objectives: The objectives of this study in patients with AS and CAD were: 1) to describe the relationship between hyperemic and resting indexes; 2) to investigate the acute and long-term effects of aortic valve replacement (AVR) on epicardial indexes and microvascular function; 3) to assess the impact of these changes on clinical decision making; and 4) to determine FFR/RFR ischemia cutoff points in AS.

Methods: In this prospective multicentric study, we performed serial measurements of FFR and RFR and evaluated MVD by means of coronary flow reserve, the index of microvascular resistance, and microvascular resistance reserve in patients with severe AS and intermediate to severe CAD before and 6 months after AVR.

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This European Academy of Allergy and Clinical Immunology (EAACI) guideline provides recommendations for the management of IgE-mediated food allergy and was developed using the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) approach. Following the confirmation of IgE-mediated food allergy diagnosis, allergen avoidance and dietary advice (with support of a specialised dietitian, if possible) together with the provision of a written treatment plan, education on the recognition of allergic symptoms and prescription of medication including adrenaline using an auto-injector are essential. Patients with significant anxiety and requirement for coping strategies may benefit from support from a clinical psychologist.

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Epidemiology and genetic diversity of human respiratory syncytial virus in Belgium between 2011 and 2019.

Virol J

October 2024

Laboratory of Clinical and Epidemiological Virology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Herestraat 49 Box 1040, 3000, Leuven, Belgium.

Article Synopsis
  • - The Human Respiratory Syncytial Virus (HRSV) significantly impacts young children and the elderly, with two main subtypes (A and B) and various genotypes, making it a focus of surveillance in Belgium.
  • - This study analyzed HRSV circulation in Belgium over eight seasons (2011-2019) prior to the COVID-19 pandemic, testing nearly 27,400 respiratory samples for HRSV using advanced PCR techniques.
  • - Findings showed a consistent winter pattern of HRSV with both subtypes co-existing; notably, subtype A strains with a specific genetic duplication replaced other strains from the 2014-2015 season onwards.
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Efficacy and safety of apraglutide in short bowel syndrome with intestinal failure and colon-in-continuity: A multicenter, open-label, metabolic balance study.

Clin Nutr

December 2024

Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Leuven, Belgium; Leuven Intestinal Failure and Transplantation Center (LIFT), University Hospitals Leuven, Leuven, Belgium. Electronic address:

Article Synopsis
  • Apraglutide is a new long-acting GLP-2 analog being tested for short bowel syndrome with intestinal failure (SBS-IF) in a phase 2 study.
  • The study involved 9 adult patients receiving weekly injections of apraglutide over 52 weeks, measuring its safety and effects on their nutritional needs and intestinal health.
  • Results showed significant improvements, including a 52% decrease in parenteral support needs and enhanced absorption of nutrients, alongside a manageable safety profile with mostly mild adverse events.
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Consensus on drivers of maintenance treatment choice and patterns of care in advanced ovarian cancer.

Int J Gynecol Cancer

January 2025

Early phase trial unit in oncology (CITOHL- EPSILYON), Centre pour l'lnnovation en Cancérologie de Lyon (CICLY), Lyon University Hospital (HCL), Lyon, France.

Article Synopsis
  • Maintenance therapies like PARP inhibitors and bevacizumab have improved outcomes for advanced ovarian cancer patients, prompting a study to explore treatment variability across Europe.
  • A Delphi study was conducted with experts to understand maintenance treatment strategies and gauge consensus on best practices.
  • Key factors influencing treatment choices include tumor mutation status and perceived risk of disease progression, with high-risk cases defined by advanced FIGO stages or residual disease after initial treatment.
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