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Roche presents positive results for spinal muscular atrophy treatment Evrysdi in babies
![Roche presents positive results for spinal muscular atrophy treatment Evrysdi in babies Roche presents positive results for spinal muscular atrophy treatment Evrysdi in babies](https://medicaldialogues.in/h-upload/2023/01/12/750x450_197706-roche-4.webp)
Basel: Roche has presented positive results from the primary analysis of the ongoing RAINBOWFISH study assessing the efficacy and safety of Evrysdi (risdiplam) in babies with pre-symptomatic SMA (n=26), aged from birth to six weeks. The data were presented at the 28th World Muscle Society (WMS) Congress, 3-7 October 2023.
“Evrysdi is the only non-invasive SMA treatment and can be used within hours of birth, potentially allowing these babies to sit, stand and walk, similar to healthy individuals,” said Levi Garraway, M.D., Ph. D., Roche’s Chief Medical Officer and Head of Global Product Development. “Evrysdi has now demonstrated its safety and efficacy in babies, children and adults and these compelling data continue to reinforce our confidence in this treatment.’’
Clinical studies show that the loss of motor neurons may begin before symptoms start so initiating treatment early is critical for better outcomes. The RAINBOWFISH study included babies with two or more copies of the SMN2 gene. Generally, the lower the number, the more severe the disease.
The study met its primary endpoint with 80% of the primary efficacy population (n=5) sitting without support for at least five seconds after 1 year of Evrysdi treatment, assessed by Bayley Scales of Infant and Toddler Development, third edition (BSID-III). The primary efficacy population included babies with two SMN2 copies and a CMAP amplitude of ≥1.5 mV at baseline. CMAP amplitude measures the muscle response to a stimulus, and a low score correlates with symptom onset in SMA patients and worse functional outcomes. Of the 26 babies in the study, 81% could sit independently for 30 seconds, including all patients with low CMAP amplitude at baseline (<1.5 mV) and the majority were standing and walking. Without treatment, children with Type 1 SMA would never be expected to sit.
RAINBOWFISH was the first trial to assess cognition with a standardised scale (BSID) as an exploratory endpoint and results showed cognitive skills typical of normal child development after 1 year of Evrysdi treatment, assessed by BSID-III.
“These data reinforce the value of beginning treatment for SMA before symptoms appear, with the goal of preserving motor neurons while they are still abundant,” said Richard Finkel, M.D., RAINBOWFISH Principal Investigator and Director of the Experimental Neuroscience Program at St. Jude Children’s Research Hospital. “Coupled with widespread newborn screening programs, early treatment could counteract the effects of the disease to give babies with pre-symptomatic SMA the best possible start in life.”
Roche is also investigating Evrysdi in combination with an anti-myostatin molecule, which is designed to promote muscle growth, among SMA patients 2-10 years of age in the Phase 2/3 MANATEE trial.
Ruchika Sharma joined Medical Dialogue as an Correspondent for the Business Section in 2019. She covers all the updates in the Pharmaceutical field, Policy, Insurance, Business Healthcare, Medical News, Health News, Pharma News, Healthcare and Investment. She has completed her B.Com from Delhi University and then pursued postgraduation in M.Com. She can be contacted at editorial@medicaldialogues.in Contact no. 011-43720751