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Abelacimab versus Rivaroxaban in Patients with Atrial Fibrillation.
N Engl J Med
January 2025
From the TIMI Study Group, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston (C.T.R., S.M.P., R.P.G., D.A.M., J.F.K., E.L.G., S.A.M., S.D.W., M.S.S.); Anthos Therapeutics, Cambridge, MA (B.H., S.P., D.B.); the Heart Rhythm Center, Taipei Veterans General Hospital and Cardiovascular Center, Taipei, Taiwan (S.-A.C.); Taichung Veterans Hospital, Taichung, Taiwan (S.-A.C.); National Yang Ming Chiao Tung University, Hsinchu, Taiwan (S.-A.C.); National Chung Hsing University, Taichung, Taiwan (S.-A.C.); St. Michael's Hospital, Unity Health Toronto, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto (S.G.G.); Canadian VIGOUR Centre, University of Alberta, Edmonton, Canada (S.G.G.); the Division of Cardiology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea (B.J.); the Department of Cardiology, Central Hospital of Northern Pest-Military Hospital, Budapest, Hungary (R.G.K.); the Heart and Vascular Center, Semmelweis University, Budapest, Hungary (R.G.K.); the Internal Cardiology Department, St. Ann University Hospital and Masaryk University, Brno, Czech Republic (J.S.); the Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland (W.W.); the Departments of Medicine and of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada (J.W.); and the Thrombosis and Atherosclerosis Research Institute, Hamilton, ON, Canada (J.W.).
Background: Abelacimab is a fully human monoclonal antibody that binds to the inactive form of factor XI and blocks its activation. The safety of abelacimab as compared with a direct oral anticoagulant in patients with atrial fibrillation is unknown.
Methods: Patients with atrial fibrillation and a moderate-to-high risk of stroke were randomly assigned, in a 1:1:1 ratio, to receive subcutaneous injection of abelacimab (150 mg or 90 mg once monthly) administered in a blinded fashion or oral rivaroxaban (20 mg once daily) administered in an open-label fashion.
Automated extracellular volume fraction measurement for diagnosis and prognostication in patients with light-chain cardiac amyloidosis.
PLoS One
January 2025
Phantomics, Inc., Seoul, South Korea.
Aims: T1 mapping on cardiac magnetic resonance (CMR) imaging is useful for diagnosis and prognostication in patients with light-chain cardiac amyloidosis (AL-CA). We conducted this study to evaluate the performance of T1 mapping parameters, derived from artificial intelligence (AI)-automated segmentation, for detection of cardiac amyloidosis (CA) in patients with left ventricular hypertrophy (LVH) and their prognostic values in patients with AL-CA.
Methods And Results: A total of 300 consecutive patients who underwent CMR for differential diagnosis of LVH were analyzed.
Reanalysis of Urothelial Cancer Chemoimmunotherapy Trials With Differential Censoring.
JAMA Netw Open
January 2025
Davidoff Cancer Center, Rabin Medical Center, Petach Tikvah, Israel.
Importance: Three similar phase 3 randomized clinical trials have investigated PD-1/PD-L1 (programmed cell death 1 protein/programmed cell death 1 ligand 1) inhibitors in combination with platinum-based chemotherapy vs chemotherapy alone as first-line treatment for advanced urothelial carcinoma (IMvigor130, atezolizumab; KEYNOTE-361, pembrolizumab; and CheckMate901, nivolumab). Only CheckMate901 reported overall survival (OS) benefit for the combination. The reason for these inconsistent results is unclear.
View Article and Find Full Text PDFEvaluating CK20 and MCPyV Antibody Clones in Diagnosing Merkel Cell Carcinoma.
Endocr Pathol
January 2025
Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Millet Caddesi, Fatih, Istanbul, 34093, Turkey.
Merkel cell carcinoma (MCC) is diagnosed through histopathological and immunohistochemical examination of biopsies from skin or other organs. Its distinguishing features include perinuclear dot-like staining with Cytokeratin 20 (CK20) and detection of Merkel cell polyomavirus (MCPyV) using various methods. However, CK20 and MCPyV negative MCC cases have been reported at varying rates.
View Article and Find Full Text PDFN-Glycosylation modulators for targeted manipulation of glycosylation for monoclonal antibodies.
Appl Microbiol Biotechnol
January 2025
School of Interdisciplinary Research, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
Monoclonal antibodies are extensively used as biotherapeutics for treatment of a variety of diseases. Glycosylation of therapeutic antibodies is considered a critical quality attribute as it influences the effector function, circulatory half-life, immunogenicity, and eventually efficacy and patient safety. During upstream process development, media components play a significant role in determining the glycosylation profile.
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