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Abstract Details

Results of the Dose-Escalation Portion of a Phase 2 Study of ACE-083, a Local Muscle Therapeutic, in Patients with Charcot-Marie-Tooth (CMT) Disease
Neuromuscular and Clinical Neurophysiology (EMG)
S58 - Therapeutics in Neuromuscular Disorders (1:55 PM-2:06 PM)
006

ACE-083 is a locally-acting protein therapeutic consisting of a modified form of human follistatin that binds myostatin plus other negative regulators of muscle. ACE-083 has been shown to increase muscle mass and force in neuromuscular disease mouse models and to increase muscle mass in healthy volunteers and patients with facioscapulohumeral dystrophy (FSHD).

To evaluate the effects of ACE-083 injected into the tibialis anterior (TA) muscle of patients with CMT1 or CMTX and mild-moderate ankle dorsiflexion weakness. 

This ongoing, multicenter study evaluates safety and tolerability (Part 1); pharmacokinetics, pharmacodynamics, and efficacy (Part 2), of ACE-083 administered bilaterally into the TA every 3 weeks. Part 1 is 3-month, open-label with 3 dose cohorts (150, 200, 240 mg/muscle, n=6 each); Part 2 is 6-month, placebo-controlled, followed by 6-month open-label (n=40 planned). 

As of 24Aug2018, preliminary Part 1 data are: median (range) age 48 yrs (18-62); 11 patients with CMT1A, 4 with CMT1B, and 3 with CMTX1; median (range) baseline fat fraction (FF) 30% (9-45). No serious AEs were reported and related AEs were primarily injection-site related. Changes in MRI parameters across the 3 cohorts are provided at Day 106 (3 weeks after last dose, average left and right sides). Mean percent increase in total muscle volume was 12.6 to 14.2% and contractile muscle volume increased 15.8 to 19.6%. Mean absolute decrease in FF% was -1.7 to -3.5%.

Local muscle injections of ACE-083 were well tolerated in patients with CMT and resulted in increases in muscle volume and decreases in fat fraction. The ongoing, placebo-controlled Part 2 of the study will evaluate effects on function and quality of life.

Authors/Disclosures
Florian P. Thomas, MD, PhD, MA, FAAN (Hackensack Meridian Health)
PRESENTER
Dr. Thomas has received personal compensation for serving as an employee of Hackensack Meridian Health. Dr. Thomas has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Pharnext. Dr. Thomas has received personal compensation in the range of $10,000-$49,999 for serving as an Editor, Associate Editor, or Editorial Advisory Board Member for Journal of Spinal Cord Medicine. Dr. Thomas has received personal compensation in the range of $10,000-$49,999 for serving as an Expert Witness for Gravel & Shae. The institution of Dr. Thomas has received research support from University of Pennsylavania. Dr. Thomas has a non-compensated relationship as a Board Member, Metro New Jersey with National MS Society that is relevant to AAN interests or activities. Dr. Thomas has a non-compensated relationship as a Board Member with American Paraplegia Society that is relevant to AAN interests or activities.
Michael E. Shy, MD, FAAN (University of Iowa) Dr. Shy has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Applied Therapeutics. The institution of Dr. Shy has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for DTx Pharma. The institution of Dr. Shy has received research support from NIH. The institution of Dr. Shy has received research support from Muscular Dystrophy Association. The institution of Dr. Shy has received research support from Charcot Marie Tooth Association. The institution of Dr. Shy has received research support from Applied Therapeutics.
David N. Herrmann, MD, FAAN (University of Rochester Medical Center) Dr. Herrmann has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Acceleron. Dr. Herrmann has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Guidepoint global. Dr. Herrmann has received personal compensation in the range of $500-$4,999 for serving as a Consultant for GLG. Dr. Herrmann has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Neurogene. Dr. Herrmann has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sarepta. Dr. Herrmann has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Regenacy. Dr. Herrmann has received intellectual property interests from a discovery or technology relating to health care.
Jeffrey Statland, MD (University of Kansas Medical Center) Dr. Statland has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Arrowhead. Dr. Statland has received personal compensation in the range of $500-$4,999 for serving as a Consultant for ML Bio. Dr. Statland has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Epic Bio. Dr. Statland has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Armatus . Dr. Statland has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Kate Therapeutics. Dr. Statland has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Vita Therapeutics. Dr. Statland has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Dyne Therapeutics. Dr. Statland has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Avidity . Dr. Statland has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Fulcrum Therapeutics. Dr. Statland has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. Dr. Statland has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Vertex . The institution of Dr. Statland has received research support from NIH. The institution of Dr. Statland has received research support from FSHD Society. The institution of Dr. Statland has received research support from Friends of FSH Research. The institution of Dr. Statland has received research support from FSHD Canada. The institution of Dr. Statland has received research support from MDA.
David Walk, MD, FAAN (Dept. of Neurology) No disclosure on file
Colin Quinn, MD (University of Pennsylvania) Dr. Quinn has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Amylyx Pharmaceuticals. Dr. Quinn has received personal compensation in the range of $0-$499 for serving as a Consultant for Amicus. Dr. Quinn has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sarepta Therapeutics. Dr. Quinn has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Biogen. Dr. Quinn has received personal compensation in the range of $0-$499 for serving as a Consultant for Clene Nanomedicine. Dr. Quinn has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Sanofi. Dr. Quinn has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Partners Health Care. Dr. Quinn has received personal compensation in the range of $10,000-$49,999 for serving as an Expert Witness for Robins Kaplan.
Nicholas E. Johnson, MD, FAAN (Virginia Commonwealth University) Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sarepta Therapuetics. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Dyne Therapeutics. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Vertex Pharma. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Avidity. Dr. Johnson has received personal compensation in the range of $100,000-$499,999 for serving as a Consultant for Arthex. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Juvena. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Rgenta. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Angle Therapeutics. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving as a Consultant for AskBio. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Dr. Johnson has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Argenx. Dr. Johnson has stock in Angle Therapeutics. Dr. Johnson has stock in Juvena Therapeutics. Dr. Johnson has stock in Myogene Therapies. The institution of Dr. Johnson has received research support from Novartis. The institution of Dr. Johnson has received research support from Takeda . The institution of Dr. Johnson has received research support from AMO Pharma. The institution of Dr. Johnson has received research support from Sarepta. The institution of Dr. Johnson has received research support from Dyne Therapeutics. The institution of Dr. Johnson has received research support from AskBio. The institution of Dr. Johnson has received research support from Pepgen. The institution of Dr. Johnson has received research support from ML Bio. The institution of Dr. Johnson has received research support from Vertex. The institution of Dr. Johnson has received research support from Arthex. The institution of Dr. Johnson has received research support from Avidity Biosciences. The institution of Dr. Johnson has received research support from Edgewise. Dr. Johnson has received intellectual property interests from a discovery or technology relating to health care.
S H. Subramony, MBBS, FAAN (University of Florida) Dr. Subramony has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Avidity. Dr. Subramony has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Dyne. Dr. Subramony has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Lupin. Dr. Subramony has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Fallonmedica. Dr. Subramony has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Biogen. Dr. Subramony has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Amicus. Dr. Subramony has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Fulcrum. The institution of Dr. Subramony has received research support from Reata. The institution of Dr. Subramony has received research support from Retrotope. The institution of Dr. Subramony has received research support from Acceleron. The institution of Dr. Subramony has received research support from Biohaven. The institution of Dr. Subramony has received research support from Pharnext. The institution of Dr. Subramony has received research support from Fulcrum. The institution of Dr. Subramony has received research support from National Ataxia Foundation. The institution of Dr. Subramony has received research support from Friedreich Ataxia Research Alliance. The institution of Dr. Subramony has received research support from Muscular Dystrophy Association. The institution of Dr. Subramony has received research support from Univ of Rochester, MDA. The institution of Dr. Subramony has received research support from Virginia Commonwealth Univ (FDA, Wyck Foundation)). The institution of Dr. Subramony has received research support from Children's Hospital, Philadelphia (FDA). The institution of Dr. Subramony has received research support from Houston Methodist (NIH). The institution of Dr. Subramony has received research support from NIHR01 AR076060-01A1 . The institution of Dr. Subramony has received research support from NIH2R42HD089804-04 . The institution of Dr. Subramony has received research support from NIH R01 AR056973 . The institution of Dr. Subramony has received research support from FSHD Society. The institution of Dr. Subramony has received research support from AAVANTI BIO. The institution of Dr. Subramony has received research support from COHAV FL State Dept of Health. The institution of Dr. Subramony has received research support from Avidity. The institution of Dr. Subramony has received research support from PTC. The institution of Dr. Subramony has received research support from Biohaven. The institution of Dr. Subramony has received research support from Fulcrum. The institution of Dr. Subramony has received research support from Vertex. The institution of Dr. Subramony has received research support from Arthrex.
Chafic Y. Karam, MD (University of Pennsylvania) Dr. Karam has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Alnylam. Dr. Karam has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Ionis. Dr. Karam has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Sanofi. Dr. Karam has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Argenx. Dr. Karam has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Alexion. Dr. Karam has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Neuroderm.
Tahseen Mozaffar, MD, FAAN (University of California Irvine) Dr. Mozaffar has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Alexion Pharmaceuticals. Dr. Mozaffar has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Argenx. Dr. Mozaffar has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Sanofi-Genzyme. Dr. Mozaffar has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Amicus. Dr. Mozaffar has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Grifols. Dr. Mozaffar has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Astellas Gene Therapy. Dr. Mozaffar has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Bayer. Dr. Mozaffar has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sarepta. Dr. Mozaffar has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Applied Therapeutics. The institution of Dr. Mozaffar has received research support from NIH. The institution of Dr. Mozaffar has received research support from Muscular Dystrophy Association. The institution of Dr. Mozaffar has received research support from Sanofi. The institution of Dr. Mozaffar has received research support from Argenx. The institution of Dr. Mozaffar has received research support from Amicus Therapeutics. The institution of Dr. Mozaffar has received research support from Astellas Gene Therpay. The institution of Dr. Mozaffar has received research support from Cartesian. The institution of Dr. Mozaffar has received research support from Cabaletta. Dr. Mozaffar has received personal compensation in the range of $500-$4,999 for serving as a Study Section Member with NIH.
Chad E Glasser, PharmD (Cyclerion Therapeutics) Mr. Glasser has received personal compensation for serving as an employee of Cyclerion Therapeutics. Inc. Mr. Glasser has stock in Cyclerion Therapeutics Inc.. Mr. Glasser has received intellectual property interests from a discovery or technology relating to health care.
Barry Miller No disclosure on file
No disclosure on file
No disclosure on file
Kenneth M. Attie, MD (Acceleron Pharma) No disclosure on file