In a significant leap forward in the clinical trial world, Ultragenyx Pharmaceutical Inc., a leading biopharmaceutical company in the field of rare and ultra-rare genetic diseases, announced the completion of patient enrollment in their Phase 3 Orbit and Cosmic studies. The participants in these studies are being evaluated for the treatment of Osteogenesis Imperfecta (OI) using setrusumab (UX143).
Osteogenesis Imperfecta (OI), also known as brittle bone disease, is a genetic disorder that prevents the body from building strong bones. As a result, individuals with this condition can experience bones that break easily. The Orbital and Cosmic studies represent a promising step forward in researching treatments for this debilitating condition.
The pivotal Phase 3 part of the Orbit study has successfully randomized 158 patients from 5 to 25 years of age. The randomization process in clinical trials allows for a balanced distribution of patients in different treatment groups, reducing potential bias. This large-scale, rigorous approach offers further credibility to whatever outcomes may arise from the study.
In tandem to the Orbit study, the Cosmic study has completed the enrollment of 66 patients, ranging in age from 2 to less than 7 years. This focus on pediatric and young patient population is noteworthy, considering the impact of OI within these age groups.
Setrusumab (UX143), the investigational drug at the heart of these studies, has shown promise in prior trials. Clinical research for pediatric and young adults with OI is crucial given the lifelong implications of this condition.
As all the patient enrollments have been finalized, the next phase would involve closely observing the impact of setrusumab on these patient groups. Research teams working on the Orbit and Cosmic studies may anticipate initial results over the next few months, paving the way for potential breakthroughs in the treatment of Osteogenesis Imperfecta.
Ultragenyx Pharmaceutical Inc. has long been at the forefront of developing innovative therapies for rare genetic diseases. The completion of enrollment for these Phase 3 trials underscores the company’s relentless effort to address unmet medical needs in the rare disease community.

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