UCI awarded 5-year, $4.2M grant to study rare muscle disorder affecting aging Americans

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Currently untreatable, sporadic inclusion body myositis (sIBM) causes muscle weakness and severe disability

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Credit: UCI School of Medicine

Irvine, CA – April 6, 2021 – The National Institute of Arthritis and Musculoskeletal and Skin Diseases has awarded UCI a 5-year, $4.2 million grant to study sporadic inclusion body myositis (sIBM), which affects aging adults causing asymmetric muscle weakness and severe disability. The disease is currently untreatable and poorly understood.

Led by principal investigator, Tahseen Mozaffar, MD, a professor of neurology and director of the Division of Neuromuscular Disorders and the UCI-MDA ALS and Neuromuscular Center at University of California Irvine’s School of Medicine, the project aims to provide a detailed characterization of sIBM disease progression over a two-year period and explore biomarkers associated with the disease, along with their influence on disease behavior and progression. This study will be the largest of its kind, enrolling 150 subjects, with a planned two-year follow up, the longest duration to date.

“As the US population above the age of 65 years continues to grow, we expect the prevalence of sIBM is likely to increase. Our hope is to gain a better understanding of this rare, yet devastating disease, so that we can design more effective and efficient clinical trials to identify potential treatments for this currently untreatable disease.”

The goal of the project is to investigate differences in disease phenotype and disease progression in a larger cohort of subjects with sporadic inclusion body myositis subjects, including muscle pathology, and to examine if a set of blood and skeletal muscle-based biomarkers influence the disease behavior. In addition, researchers will continue to examine the distribution of Kv1.3 potassium channels in blood and muscles to see if they can potentially be targeted by pharmacological agents. S. Armando Villalta, PhD, an assistant professor in the Department of Physiology & Biophysics at UCI’s School of Medicine, will conduct the immunological analyses. Bin Nan, PhD, a professor of statistics at UCI’s Donald Bren School of Information & Computer Sciences, will conduct the statistical analyses.

“A major barrier to clinical trials in sIBM has been the lack of a full understanding of the natural history of the disease,” said Mozaffar. “This funding will enable us to conduct the observational study needed to study the disease phenotype, explore factors that influence disease progression and behavior, and ultimately direct future clinical trials designed to uncover potential treatments.”

A thirteen-site consortium of myositis treatment centers has been created and is standing ready to adopt quickly any future clinical trials aimed at changing the course of sIBM.

Effective April 1, 2021, the award, number 1R01AR078340-01, is titled, “Influence of NT5c1A antibodies on disease progression, clinical phenotype and blood and muscle biomarkers in sporadic Inclusion Body Myositis – A prospective evaluation.”

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Each year, the UCI School of Medicine educates more than 400 medical students, and nearly 150 doctoral and master’s students. More than 700 residents and fellows are trained at UCI Medical Center and affiliated institutions. The School of Medicine offers an MD; a dual MD/PhD medical scientist training program; and PhDs and master’s degrees in anatomy and neurobiology, biomedical sciences, genetic counseling, epidemiology, environmental health sciences, pathology, pharmacology, physiology and biophysics, and translational sciences. Medical students also may pursue an MD/MBA, an MD/master’s in public health, or an MD/master’s degree through one of three mission-based programs: the Health Education to Advance Leaders in Integrative Medicine (HEAL-IM), the Leadership Education to Advance Diversity-African, Black and Caribbean (LEAD-ABC), and the Program in Medical Education for the Latino Community (PRIME-LC). The UCI School of Medicine is accredited by the Liaison Committee on Medical Accreditation and ranks among the top 50 nationwide for research. For more information, visit som.uci.edu.

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Anne Warde
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Original Source

https://som.uci.edu/news_releases/grant_awarded_for_sIBM_research.asp

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