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Abstract Details

FIREFISH Part 1: 1-Year Results on Motor Function in Babies with Type 1 SMA
Child Neurology and Developmental Neurology
S25 - Child Neurology: Spinal Muscular Atrophy: Treatments and Outcomes (1:22 PM-1:33 PM)
003
Type 1 SMA is a debilitating neuromuscular disease, in which untreated babies fail to achieve major motor milestones and typically die before 2 years of age. SMA is caused by reduced levels of the survival of motor neuron (SMN) protein from deletions and/or mutations of the SMN1 gene. A second SMN gene, SMN2, produces low levels of functional SMN protein. Risdiplam (RG7916/RO7034067) is an investigational, orally administered, centrally and peripherally distributed small molecule that modulates SMN2 pre-mRNA splicing to increase SMN protein levels.

To determine the effect of risdiplam on motor function in babies with Type 1 spinal muscular atrophy (SMA) in the FIREFISH Part 1 dose-finding study.

FIREFISH (NCT02913482) is an ongoing, multicenter, open-label, operationally seamless study of risdiplam in babies aged 1–7 months at enrollment with Type 1 SMA and two SMN2 gene copies. Exploratory Part 1 (n=21) assesses the safety, tolerability, pharmacokinetics and pharmacodynamics of different risdiplam dose levels. Confirmatory Part 2 (n=40) is assessing the safety and efficacy of risdiplam.

In a Part 1 interim analysis (September 2018), 93% (13/14) of babies had ≥4-point improvement in CHOP-INTEND total score from baseline at 8 months (Day 245; median change of 16 points). From baseline to Day 245 the number of babies meeting the following HINE-2 motor milestones increased: full head control (6/14, 43%), horizontal or upward kicking (7/14, 50%), rolling to side or from prone to supine (4/14, 29%) and sitting with or without support (6/14, 43%). To date, no drug-related safety findings have led to withdrawal of any baby from the study and no significant ophthalmological findings have been observed. One-year motor milestone data will be presented from FIREFISH Part 1.

In the FIREFISH Part 1 dose-finding study, risdiplam improved motor function in babies with Type 1 SMA. FIREFISH Part 2 is ongoing worldwide.

Authors/Disclosures
Giovanni Baranello
PRESENTER
No disclosure on file
Laurent Servais (John Radcliffe Hospital) Laurent Servais has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Biogen. Laurent Servais has received personal compensation in the range of $5,000-$9,999 for serving as a Consultant for Roche. Laurent Servais has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Novartis. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Astellas. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Pfizer. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Sarepta. The institution of Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Evox. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for PTC. Laurent Servais has received personal compensation in the range of $10,000-$49,999 for serving as a Consultant for Sysnav. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for BioHaven. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Dyne. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Zentech. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving as a Consultant for MitoRx. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Lupin. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Fibrogen. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Alltrana. Laurent Servais has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Illumina. Laurent Servais has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche. The institution of Laurent Servais has received research support from Roche. The institution of Laurent Servais has received research support from Novartis. The institution of Laurent Servais has received research support from Biogen. The institution of Laurent Servais has received research support from Zentech. The institution of Laurent Servais has received research support from BioHaven. The institution of Laurent Servais has received research support from PerkinHalmers. The institution of Laurent Servais has received research support from Scholar Rock.
John W. Day, MD, PhD (Stanford University School of Medicine) Dr. Day has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Novartis Gene Therapy. Dr. Day has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Biogen. Dr. Day has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Roche/Genentech. Dr. Day has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Sarepta. Dr. Day 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. Day has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for PepGen. Dr. Day has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Epirium Bio. Dr. Day has received personal compensation in the range of $5,000-$9,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Solid Biosciences. Dr. Day has received personal compensation in the range of $10,000-$49,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Muscular Dystrophy Association. The institution of Dr. Day has received research support from Astellas Pharma. The institution of Dr. Day has received research support from Novartis Gene Therapy. The institution of Dr. Day has received research support from Biogen. The institution of Dr. Day has received research support from Roche/Genentech. The institution of Dr. Day has received research support from Sanofi/Genzyme. The institution of Dr. Day has received research support from Sarepta. The institution of Dr. Day has received research support from Scholar Rock. The institution of Dr. Day has received research support from AMO Pharma. The institution of Dr. Day has received research support from AnnJi. Dr. Day has received research support from CureSMA. The institution of Dr. Day has received research support from Muscular Dystrophy Association. The institution of Dr. Day has received research support from Ionis Pharmaceuticals. The institution of Dr. Day has received research support from NMD Pharma. The institution of Dr. Day has received research support from SMA Foundation. Dr. Day has received intellectual property interests from a discovery or technology relating to health care.
No disclosure on file
No disclosure on file
No disclosure on file
Basil T. Darras, MD (Children'S Hosp Boston Harvard Med School) The institution of Dr. Darras has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Amicus. Dr. Darras has received personal compensation in the range of $0-$499 for serving on a Scientific Advisory or Data Safety Monitoring board for Amicus. The institution of Dr. Darras has received research support from National Institutes of Health/National Institute of Neurological Disorders and Stroke,. The institution of Dr. Darras has received research support from Slaney Family Fund for SMA. The institution of Dr. Darras has received research support from Spinal Muscular Atrophy Foundation. The institution of Dr. Darras has received research support from CureSMA. The institution of Dr. Darras has received research support from Working on Walking Fund . The institution of Dr. Darras has received research support from CHERISH, CS2/CS12 . The institution of Dr. Darras has received research support from Biogen for CS11. The institution of Dr. Darras has received research support from AveXis. The institution of Dr. Darras has received research support from Sarepta Pharmaceuticals. The institution of Dr. Darras has received research support from PTC Therapeutics. The institution of Dr. Darras has received research support from Roche. The institution of Dr. Darras has received research support from Santhera. The institution of Dr. Darras has received research support from Scholar Rock. The institution of Dr. Darras has received research support from Fibrogen. The institution of Dr. Darras has received research support from Summit. Dr. Darras has received publishing royalties from a publication relating to health care. Dr. Darras has received publishing royalties from a publication relating to health care.
No disclosure on file
Heidemarie Kletzl Heidemarie Kletzl has received personal compensation for serving as an employee of Hoffmann-La Roche.
No disclosure on file
No disclosure on file
Timothy Seabrook No disclosure on file
Christian Czech, PhD No disclosure on file
No disclosure on file
No disclosure on file
No disclosure on file
Ksenija Gorni Dr. Gorni has received personal compensation for serving as an employee of Hoffman La Roche.
Omar Khwaja, MD No disclosure on file