approved by European Commission as a potential new standard of care for the treatment of Pompe Disease
- Approved for the treatment of the full spectrum of both late-onset Pompe disease and infantile-onset Pompe disease
- First new treatment option approved for the Pompe community in Europe in more than 15 years
Paris, June 28, 2022 – The European Commission has granted marketing authorization for Nexviadyme® (avalglucosidase alfa), an enzyme replacement therapy (ERT) for the long-term treatment of both late-onset and infantile-onset Pompe disease, a rare, progressive and debilitating muscle disorder. Nexviadyme is the first and only newly approved medicine for Pompe disease in Europe since 2006, when the European Commission authorized the marketing
of alglucosidase alfa, branded Myozyme®.
Senior Consultant and Professor, Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University Munich
"The approval of Nexviadyme in Europe to treat Pompe disease is backed by a robust body of evidence showing clinically meaningful improvements that can impact quality of life. The totality and rigor of the data is particularly noteworthy given the complexities of research and development for such a rare and progressive condition.
Nexviadyme’s demonstrated clinical benefit and molecular innovation bring a new treatment option to people living with Pompe disease who continue to face unmet needs.”
Addressing an unmet need for people living with Pompe disease
Pompe disease can present as infantile-onset Pompe disease (IOPD), the most severe form of the disease with rapid onset in infancy, or late-onset Pompe disease (LOPD), which progressively damages muscles over time. If left untreated, IOPD can lead to heart failure and death within the first year of life, while people with LOPD may require mechanical ventilation to help with breathing or a wheelchair to assist with mobility as the disease progresses.
Nexviadyme now approved in many countries around the world
Nexviadyme is approved in multiple markets around the world for the treatment of certain people living with Pompe disease, including the European Union, the United States, Japan, Canada, Switzerland, Australia, Brazil, Taiwan and the United Arab Emirates. Outside of Europe, the treatment is marketed under the brand name Nexviazyme. In the U.S. and Japan, the majority of the Myozyme (alglucosidase alfa)-treated population has started, or is in the process of starting, treatment with Nexviazyme (avalglucosidase alfa).
In November 2021, Sanofi announced that as part of the European Medicines Agency’s (EMA) review of Nexviadyme, the Committee for Medicinal Products for Human Use (CHMP) issued an opinion that the therapy does not qualify as a New Active Substance (NAS). In April 2022, the Committee for Orphan Medicinal Product (COMP) also recommended Nexviadyme be removed from the Community Register of Orphan Medicinal Products (OMP).
Sanofi strongly disagrees with both opinions and believes these conclusions were the result of an erroneous and very narrow interpretation of the NAS and OMP principles that demonstrate molecular innovation and clinical benefit. Sanofi stands by the totality of data in support of Nexviadyme as a potential new standard of care and is concerned that such narrow interpretation will undermine rare disease incentive mechanisms in Europe. We believe withholding these distinct designations could negatively impact patient health in Europe by restricting access to innovative advancements in care.
Executive Vice President, Specialty Care, Sanofi
"For more than two decades, we’ve been working with the community and leveraging our scientific expertise to improve care for people living with Pompe disease.
We strongly believe in the meaningful clinical benefits of this medicine as a new standard of care and will work hard to ensure the broadest possible access in Europe despite the European Commission’s failure to recognize Nexviadyme’s NAS and OMP designations.
We call on patient advocacy groups, policymakers, clinicians
and patients to join us in our efforts to ensure innovative treatments are appropriately recognized and made available
to patients in Europe and beyond.”
Nexviadyme, a new ERT for late-onset Pompe disease and infantile-onset Pompe Disease
Positive outcomes in key disease burden measures
In a robust clinical development program, Nexviadyme demonstrated clinically meaningful differences in key areas of disease burden for people living with late-onset Pompe disease and infantile-onset Pompe disease.
Results from the COMET study comparing Nexviadyme to alglucosidase alfa in LOPD at 49 weeks included:
- Patients treated with Nexviadyme showed a 2.9% improvement from baseline (SE=0.9) in forced vital capacity (FVC) percent-predicted, a key measure of respiratory function and the study’s primary endpoint, which was 2.4% points greater as compared to the change with alglucosidase alfa. This difference exceeded the non-inferiority margin (p=0.0074; 95% CI, -0.13, 4.99). Statistical superiority was narrowly missed (p=0.06).
- Patients treated with Nexviadyme walked 32.2 meters farther (SE=9.9) compared to baseline in the 6-minute walk test (6MWT), a key secondary endpoint, which was 30 meters farther (p=0.040; 95% CI, 1.33, 58.69) than the change with alglucosidase alfa. Formal statistical testing for all secondary endpoints was not conducted.
Results from the Mini-COMET study evaluating Nexviadyme in IOPD patients showed improvement or stabilization at six months in efficacy outcomes, the trial’s secondary objective, of gross motor function measure (GMFM-88), quick motor function test (QMFT), pediatric evaluation of disability index (Pompe-PEDI), left ventricular mass z-score (LVMZ), and eyelid position measurements in patients previously declining or insufficiently controlled with alglucosidase alfa.
A pooled safety analysis from four clinical studies found serious adverse reactions reported in patients treated with Nexviadyme included chills (1.4%), headache, dyspnoea, respiratory distress, nausea, skin discoloration, chest discomfort, pyrexia, blood pressure increased, body temperature increased, heart rate increased, and oxygen saturation decreased (0.7% each). Additionally, hypersensitivity reactions (43.5%), anaphylaxis (1.4%) and infusion-associated reactions (26.1%) were reported. The most frequently reported adverse drug reactions (ADRs) (>5%) were pruritus (9.4%), rash (8%), headache (7.2%), urticaria (6.5%), fatigue (6.5%), nausea (5.8%), and chills (5.1%).
Mechanism of action designed for increased uptake
People living with Pompe disease have low levels of the enzyme acid alpha-glucosidase (GAA), which results in build-up of glycogen, leading to irreversible damage to skeletal and cardiac muscles. Nexviadyme is specifically designed to target the mannose-6-phosphate (M6P) receptor, the key pathway for cellular uptake of ERT and transport to the lysosome, and has an average 15-fold higher level of M6P moieties as compared to alglucosidase alfa. Nexviadyme aims to help improve uptake and enhance glycogen clearance in target tissues as compared to alglucosidase alfa, which was used as the comparator arm in the pivotal Phase 3 COMET study.
We are an innovative global healthcare company, driven by one purpose: we chase the miracles of science to improve people’s lives. Our team, across some 100 countries, is dedicated to transforming the practice of medicine by working to turn the impossible into the possible. We provide potentially life-changing treatment options and life-saving vaccine protection to millions of people globally, while putting sustainability and social responsibility at the center of our ambitions.
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