Monday, Jan 24, 2022
Interim data submitted to the FDA show majority of pre-symptomatic babies
treated with Evrysdi for at least one year were able to sit, stand and walk
within timeframes typical of healthy babies, as well as maintain swallowing
Evrysdi is approved in 70 countries and submitted in a further 31 with more than 4,500 patients treated to date
South San Francisco, CA -- January 24, 2022 --
Genentech, a member of the Roche Group (SIX: RO, ROG; OTCQX: RHHBY), today announced that the U.S. Food and Drug Administration (FDA) has granted priority review of a supplemental new drug application (sNDA) for the use of Evrysdi® (risdiplam) to treat pre-symptomatic babies under two months of age with spinal muscular atrophy (SMA). The sNDA submission incorporates interim data from the RAINBOWFISH study, which shows the majority of pre-symptomatic babies treated with Evrysdi achieved key milestones such as sitting, standing, walking and maintained the ability to swallow following 12 months of treatment.
“Treating very young babies with Evrysdi before SMA symptoms arise may help them to achieve milestones such as standing and walking within timeframes typical of healthy infants,” said Levi Garraway, M.D., Ph.D., Genentech’s chief medical officer and head of Global Product Development. “Extending treatment access for the youngest members of the SMA community is crucial and we look forward to working with the FDA on this application.”
Evrysdi is designed to treat SMA by increasing and sustaining production of the survival motor neuron (SMN) protein in the central nervous system (CNS) and peripheral tissues. SMN protein is found throughout the body and is critical for maintaining healthy motor neurons and movement. Evrysdi’s existing FDA label is for the treatment of SMA in adults, children and babies two months and older. If approved, Evrysdi would be the first medicine administered at home for pre-symptomatic babies with SMA.
Initial interim data from the RAINBOWFISH study, presented at the World Muscle Society (WMS) Virtual Congress 2021, showed that of the babies included in the interim efficacy analysis, all (5/5), maintained the ability to swallow and were able to feed exclusively orally after 12 months of treatment. Eighty percent (4/5) treated with Evrysdi for at least 12 months achieved milestones such as standing and walking independently within World Health Organization windows for healthy children. All participants (n=5) met Hammersmith Infant Neurological Examination, Section 2 (HINE-2) motor milestones of head control, sitting upright, rolling and crawling after 12 months of treatment with Evrysdi.
No treatment-related serious adverse events were reported in any of the babies treated with Evrysdi through the interim safety analysis period (n=12). Four treatment-emergent adverse events were reported, and all were resolved or were resolving with ongoing treatment with Evrysdi. The most common adverse events (AEs) were nasal congestion (33%), cough (25%), teething (25%), vomiting (25%), eczema (17%), abdominal pain (17%), diarrhea (17%), gastroenteritis (17%), papule (17%) and pyrexia (17%). The AEs were reflective of the age of the babies rather than the underlying SMA. The RAINBOWFISH study is currently recruiting.
The latest results from the RAINBOWFISH study will be presented at the Muscular Dystrophy Association (MDA) Clinical and Scientific Conference in March 2022.
Genentech leads the clinical development of Evrysdi as part of a collaboration with the SMA Foundation and PTC Therapeutics.
About Evrysdi® (risdiplam)
Evrysdi is a survival motor neuron 2 (SMN2) splicing modifier designed to treat SMA caused by mutations in chromosome 5q that lead to survival motor neuron (SMN) protein deficiency. Evrysdi is administered daily at home in liquid form by mouth or by feeding tube.
Evrysdi is designed to treat SMA by increasing and sustaining the production of SMN protein levels in the central nervous system (CNS) and peripheral tissues as demonstrated in animal models. SMN protein is found throughout the body and is critical for maintaining healthy motor neurons and movement.
Evrysdi was granted PRIME designation by the European Medicines Agency (EMA) in 2018 and Orphan Drug Designation by the U.S Food and Drug Administration in 2017. In 2021, Evrysdi was awarded Drug Discovery of the Year by the British Pharmacological Society as well as the Society for Medicines Research Award for Drug Discovery. Evrysdi is currently approved in 70 countries and the dossier is under review in a further 31 countries.
Evrysdi is currently being evaluated in five multicenter trials in people with SMA:
SMA is a severe, progressive neuromuscular disease that can be fatal. It affects approximately one in 10,000 babies and is the leading genetic cause of infant mortality. SMA is caused by a mutation of the survival motor neuron 1 (SMN1) gene, which leads to a deficiency of SMN protein. This protein is found throughout the body and is essential to the function of nerves that control muscles and movement. Without it, nerve cells cannot function correctly, leading to muscle weakness over time. Depending on the type of SMA, an individual’s physical strength and their ability to walk, eat or breathe can be significantly diminished or lost.
What is Evrysdi?
Evrysdi is a prescription medicine used to treat spinal muscular atrophy (SMA) in adults and children 2 months of age and older.
It is not known if Evrysdi is safe and effective in children under 2 months of age.
Important Safety Information
These are not all of the possible side effects of Evrysdi. For more information on the risk and benefits profile of Evrysdi, patients should ask their healthcare provider or pharmacist.
Patients may report side effects to the FDA at 1-800-FDA-1088 or http://www.fda.gov/medwatch. Patients may also report side effects to Genentech at 1-888-835-2555.
Please see the full Prescribing Information for additional Important Safety Information.
About Genentech in Neuroscience
Neuroscience is a major focus of research and development at Genentech. Our goal is to pursue groundbreaking science to develop new treatments that help improve the lives of people with chronic and potentially devastating diseases.
Genentech and Roche are investigating more than a dozen medicines for neurological disorders, including multiple sclerosis, neuromyelitis optica spectrum disorder, Alzheimer’s disease, Huntington’s disease, Parkinson’s disease, Duchenne muscular dystrophy and autism spectrum disorder. Together with our partners, we are committed to pushing the boundaries of scientific understanding to solve some of the most difficult challenges in neuroscience today.
Founded more than 40 years ago, Genentech is a leading biotechnology company that discovers, develops, manufactures and commercializes medicines to treat patients with serious and life-threatening medical conditions. The company, a member of the Roche Group, has headquarters in South San Francisco, California. For additional information about the company, please visit http://www.gene.com.
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