RT Journal Article T1 Assessing Dysferlinopathy Patients Over Three Years With a New Motor Scale. A1 Jacobs, Marni B A1 James, Meredoith K A1 Lowes, Linda P A1 Alfano, Lindsay N A1 Eagle, Michelle A1 Muni-Lofra, Robert A1 Moore, Ursula A1 Feng, Jia A1 Rufibach, Laura E A1 Rose, Kristy A1 Duong, Tina A1 Bello, Luca A1 Pedrosa-Hernandez, Irene A1 Holsten, Scott A1 Sakamoto, Chikako A1 Canal, Aurelie A1 Sanchez-Aguilera-Praxedes, Nieves A1 Thiele, Simone A1 Siener, Catherine A1 Vandevelde, Bruno A1 DeWolf, Brittney A1 Maron, Elke A1 Guglieri, Michela A1 Hogrel, Jean-Yves A1 Blamire, Andrew M A1 Carlier, Pierre G A1 Spuler, Simone A1 Day, John W A1 Jones, Kristi J A1 Bharucha-Goebel, Diana X A1 Salort-Campana, Emmanuelle A1 Pestronk, Alan A1 Walter, Maggie C A1 Paradas, Carmen A1 Stojkovic, Tanya A1 Mori-Yoshimura, Madoka A1 Bravver, Elena A1 Diaz-Manera, Jordi A1 Pegoraro, Elena A1 Mendell, Jerry R A1 Mayhew, Anna G A1 Straub, Volker K1 Adolescent K1 Aged K1 Clinical Trials as Topic K1 Female K1 Male K1 Psychometrics AB Dysferlinopathy is a muscular dystrophy with a highly variable clinical presentation and currently unpredictable progression. This variability and unpredictability presents difficulties for prognostication and clinical trial design. The Jain Clinical Outcomes Study of Dysferlinopathy aims to establish the validity of the North Star Assessment for Limb Girdle Type Muscular Dystrophies (NSAD) scale and identify factors that influence the rate of disease progression using NSAD. We collected a longitudinal series of functional assessments from 187 patients with dysferlinopathy over 3 years. Rasch analysis was used to develop the NSAD, a motor performance scale suitable for ambulant and nonambulant patients. Generalized estimating equations were used to evaluate the impact of patient factors on outcome trajectories. The NSAD detected significant change in clinical progression over 1 year. The steepest functional decline occurred during the first 10 years after symptom onset, with more rapid decline noted in patients who developed symptoms at a younger age (p = 0.04). The most rapidly deteriorating group over the study was patients 3 to 8 years post symptom onset at baseline. The NSAD is the first validated limb girdle specific scale of motor performance, suitable for use in clinical practice and clinical trials. Longitudinal analysis showed it may be possible to identify patient factors associated with greater functional decline both across the disease course and in the short-term for clinical trial preparation. Through further work and validation in this cohort, we anticipate that a disease model incorporating functional performance will allow for more accurate prognosis for patients with dysferlinopathy. ANN NEUROL 2021;89:967-978. PB John Wiley & Sons, Inc. YR 2021 FD 2021-04-16 LK http://hdl.handle.net/10668/17164 UL http://hdl.handle.net/10668/17164 LA en NO Jacobs MB, James MK, Lowes LP, Alfano LN, Eagle M, Muni Lofra R, et al. Assessing Dysferlinopathy Patients Over Three Years With a New Motor Scale. Ann Neurol. 2021 May;89(5):967-978. DS RISalud RD Apr 18, 2025