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BioMarin Presents Real-World Evidence Further Supporting Safety and Efficacy of VOXZOGO® (vosoritide) in Children with Achondroplasia at the European Society for Paediatric Endocrinology (ESPE) Meeting 2024

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SAN RAFAEL, Calif., Nov. 16, 2024 /PRNewswire/ -- BioMarin Pharmaceutical Inc. (Nasdaq: BMRN) today announced positive and consistent results from multiple real-world evidence studies of VOXZOGO® (vosoritide) in children with achondroplasia. These results, as well as data from the investigational research program for VOXZOGO in hypochondroplasia, were presented at the 62nd Annual European Society for Paediatric Endocrinology (ESPE) Meeting in Liverpool, England, Nov. 16-18, 2024.

BioMarin Pharmaceutical logo (PRNewsfoto/BioMarin Pharmaceutical Inc.)
BioMarin Pharmaceutical logo (PRNewsfoto/BioMarin Pharmaceutical Inc.)

"The extensive clinical data supporting VOXZOGO in children with achondroplasia are well-known, and at ESPE, we shared further results in children who greatly benefited from the medicine in a real-world setting," said Klaus Mohnike, M.D., Ph.D., pediatric endocrinologist at Children's Hospital, Otto-von-Guericke-University in Magdeburg, Germany. "Furthermore, the breadth of clinical and real-world evidence underscores why we continue to advocate for treatment with VOXZOGO as early as possible."

Real-world longitudinal data from the achondroplasia module of the European CrescNet registry involving 452 children at 30 centers across eight countries showed outcomes of treatment with VOXZOGO were consistent with previously reported clinical trials. The median age at time of enrollment was 6.12 years. Among 143 participants treated with VOXZOGO for 12 months, the average height increase was 6.36 centimeters (cm), with a height Z-score improvement of 0.7 compared to an achondroplasia reference population. For 73 participants treated for 24 months, the average height increase was 11.86 cm, with a height Z-score improvement of 1.15 compared to the same reference population.

In addition, in a real-world study in France that included 62 children, results from 17 children above the age of 5 (for whom data is available for 18 months after initial treatment) showed continued efficacy of VOXZOGO. The children who received VOXZOGO experienced an 8.76 cm increase in height, on average, and experienced a mean 0.56 improvement in Z-score compared to an untreated natural history population with achondroplasia and a 0.44 improvement in Z-score compared to a general U.S. population, indicating progress in height compared to the untreated population. The average annualized growth velocity was 5.85 cm/year, representing a substantial improvement in growth-related development over time. There were no discontinuations, and longer-term safety and effectiveness will continue to be monitored.

"These real-world data further reinforce the value of VOXZOGO as the first and only approved treatment for children, including infants, with achondroplasia," said Greg Friberg, M.D., executive vice president and chief research & development officer at BioMarin. "We have now collected more than 6,000 patient-years of safety data through our industry-leading CANOPY clinical program, providing the scientific basis for the rapid development of VOXZOGO in new indications such as hypochondroplasia, where we hope to replicate our success in achondroplasia."