Amylyx Pharmaceuticals receives Health Canada approval for ALBRIOZA for the treatment of ALS

Health Canada has approved Amylyx Pharmaceuticals’ ALBRIOZA (sodium phenylbutyrate and ursodoxicoltaurine), with conditions, for the treatment of amyotrophic lateral sclerosis (ALS).

Clinical data demonstrated a statistically significant and clinically meaningful benefit in functional outcomes for people with ALS taking ALBRIOZA (also known as AMX0035) compared to people taking placebo, either as a stand-alone therapy or when added to existing treatments for ALS. This decision marks the first marketing approval for ALBRIOZA issued to Amylyx worldwide.

“For nearly a decade, we have been committed to creating more meaningful moments for people living with ALS and their families. We are excited with Health Canada’s decision to approve ALBRIOZA with conditions. ALBRIOZA is a therapy that demonstrated in our CENTAUR trial a statistically significant and clinically meaningful impact on function, alone or in addition to existing ALS therapies. We are grateful to the people who participated in our clinical trials, their families, the researchers, and the ALS community for helping to make this milestone happen,” said Justin Klee and Joshua Cohen, co-CEOs and co-founders of Amylyx.

ALS is a relentlessly progressive and fatal neurodegenerative disorder caused by motor neuron death in the brain and spinal cord. Motor neuron loss in ALS leads to deteriorating muscle function, the inability to move and speak, respiratory paralysis, and eventually death. The vast majority of people with ALS (>90%) have sporadic disease, showing no clear family history. Approximately 3,000 Canadians are currently living with ALS, and the average life expectancy from symptom onset is two to five years. Approximately 1,000 people die from ALS in Canada every year, with a similar number of diagnoses annually.

The approval of ALBRIOZA was authorized under Health Canada’s Notice of Compliance with Conditions (NOC/c) policy. One of the conditions of the approval is the provision of data from the ongoing Phase 3 PHOENIX trial. Other conditions include additional planned or ongoing studies. Amylyx anticipates topline results from the PHOENIX trial in 2024.

The approval of ALBRIOZA is based on data from CENTAUR, a multicenter Phase 2 clinical trial in 137 participants with ALS encompassing a 6-month randomized placebo-controlled phase and an open-label long-term follow-up phase, which demonstrated that participants treated with ALBRIOZA scored, on average, 2.32 points higher on the Amyotrophic Lateral Sclerosis Functional Rating Scale – Revised (ALSFRS-R) over a period of 24 weeks. Detailed data from CENTAUR were published in the New England Journal of MedicineMuscle & Nerve, and the Journal of Neurology, Neurosurgery, and Psychiatry.

“The approval by Health Canada, the first for Amylyx globally, is an important milestone and first step,” said Chris Aiello, general manager and head of Canada at Amylyx. “We anticipate that ALBRIOZA will be available commercially in Canada within the next six weeks. We are prepared to work with the pan-Canadian Pharmaceutical Alliance (pCPA) and federal, provincial and territorial governments to negotiate the listing of ALBRIOZA expeditiously, so that eligible Canadians living with ALS can obtain access as quickly and efficiently as possible.”

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