FDA Approves Jazz’ Rylaze for Cancer Chemo Regimen

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FDA has approved Jazz Pharmaceuticals’ Rylaze (asparaginase erwinia chrysanthemi (recombinant)-rywn) as a component of a chemotherapy regimen to treat acute lymphoblastic leukemia and lymphoblastic lymphoma in adult and pediatric patients who are allergic to the E. coli-derived asparaginase products used most commonly for treatment. An agency statement says the only other FDA-approved drug for such patients with allergic reactions has been in global shortage for years.

Rylaze’s effectiveness was evaluated in a study of 102 patients who either had a hypersensitivity to E. coli-derived asparaginases or experienced silent inactivation. The study found that the recommended dosage of Rylaze would provide the target level of asparaginase activity in 94% of patients.

The drug’s most common side effects include hypersensitivity reactions, pancreatic toxicity, blood clots, hemorrhage, and liver toxicity.

The review was conducted under Project Orbis through the FDA Oncology Center of Excellence. Project Orbis provides a framework for concurrent submissions and review of oncology drugs among international partners. For this review, the statement says, FDA collaborated with Health Canada, where the application review is pending. Rylaze received fast track and orphan drug designations for this indication.

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