A Study to Evaluate the Efficacy and Safety of Taldefgrobep Alfa in Participants With Spinal Muscular Atrophy (RESILIENT)
Spinal Muscular Atrophy, Neuromuscular Diseases, SMA
About this trial
This is an interventional treatment trial for Spinal Muscular Atrophy
Eligibility Criteria
Key Inclusion Criteria:
- Spinal Muscular Atrophy confirmed by genetic diagnosis of 5q-autosomal recessive SMA as well as SMN2 copy number
- Ambulant or Non-Ambulant
- Treated with an SMA disease-modifying therapy and anticipated to remain on that same treatment regimen and dose throughout the trial including nusinersen, risdiplam, and/or a history of onasemnogene abeparvovec
Key Exclusion Criteria:
- Cannot have previously taken anti-myostatin therapies
- Must weigh at least 15kg
- Respiratory insufficiency, defined by the medical necessity for invasive or non-invasive ventilation for daytime treatment while awake (use overnight or during daytime naps is acceptable)
- History of Spinal Fusion within 6 months of Screening. MAGEC rod nonsurgical adjustments are allowed during the study
- Presence of an implanted shunt for the drainage of CSF or an implanted central nervous system (CNS) catheter
Sites / Locations
- Phoenix Children's
- UCSD & Rady Children's
- Children's Hospital of Los Angeles
- UCSF Benioff Children's Hospital, Medical Center
- Children's Hospital Colorado
- Yale University
- Children's National Medical Center
- UF Health, Shands Hospital
- Rare Disease Research
- Northwestern University - Feinberg School of Medicine - Ann & Robert H. Lurie Children's Hospital of Chicago
- Indiana University -Riley Research
- University of Iowa
- University of Kansas Medical Center
- Boston Children's Hospital - Harvard
- BSHS Office of Research
- Washington University in St. Louis
- Columbia University Medical Center
- Stony Brook University Hospital
- Duke University Medicine
- Cincinnati Children's Hospital Medical Center
- Nationwide Children's Hospital
- Penn State College of Medicine
- CHOP Children's Hospital of Philadelphia
- UPMC Children's Hospital of Pittsburgh
- Vanderbilt University Medical Center
- UT Pediatric Neurosciences/Dell Children's Medical Center
- Neurology Rare Disease Center
- Cook Children's Hospital
- Baylor College of Medicine at The Children's Hospital of San Antonio
- University of Virginia Children's Hospital
- Children's Hospital of The King's Daughters
- MultiCare Institute of Research and Innovation
- Medical College of Wisconsin
- University Hospital Antwerp
- University Hospital Ghent
- University Hospital Leuven
- Chr Citadella
- University Hospital Brno - Dept. of Pediatric Neurology
- Motol University Hospital
- University Hospital Essen (Public-Law Institution) - Dept. of Pediatrics I
- University Hospital Freiburg, Center For Children and Adolescent Medicine, Dept. of Neuropediatrics and Muscle Disorders
- Dr. Von Haunersches Children'S Hospital - Lmu Munich
- Irccs Institute of Neurological Sciences of Bologna - Bellaria Hospital
- Nemo-Brescia Clinical Center For Neuromuscular Diseases
- IRCCS NEUROLOGICAL INSTITUTE C. MONDINO CHILD and NEUROPSYCHIATRIC UNIT
- Bambino Gesù Children'S Research Hospital Irccs - San Paolo Office Dept. of Neuroscience
- University Medical Center Utrecht
- University Clinical Centre in Gdansk - Dept. of Developmental Neurology
- Heliodor Swiecicki Clinical Hospital At Medical University - Child and Adolescents Neurology Clinic
- The Children'S Memorial Health Institute - Dept. of Neurology and Epileptology
- T. Marciniak Lower Silesian Specialist Hospital, Pediatric Neurology Dept.
- Donostia University Hospital
- Hospital Sant Joan de Déu
- Maternal-Child'S Hospital of Málaga, Regional University Hospital - Pediatric Neurology Unit
- La Fe University and Polytechnic Hospital
- Royal Hospital For Children
- Royal Manchester Children'S Hospital
- John Radcliffe Hospital
Arms of the Study
Arm 1
Arm 2
Experimental
Placebo Comparator
taldefgrobep alfa
Placebo
taldefgrobep alfa - Double-blind (DB) Phase: Participants receive weight based 35 mg/50 mg weekly subcutaneous injection for 48-week DB phase. taldefgrobep alfa/taldefgrobep alfa - Extension Phase: Participants receive weight based 35 mg/50 mg weekly subcutaneous injection for 48-week Open label Extension (OLE) phase.
Placebo - Double-blind (DB) Phase: Participants receive weight based 35 mg/50 mg weekly subcutaneous injection for 48-week DB phase. Placebo/taldefgrobep alfa - Extension Phase: Participants who receive placebo during DB phase, receive weight based 35 mg/50 mg weekly subcutaneous taldefgrobep alfa injection for 48-week OLE phase.