Question · Q3 2025
Catherine asked about potential risks associated with using the ordinal two-step DRSS endpoint for the DR program, particularly concerning a smaller patient population, higher placebo effect, or patient variability compared to traditional endpoints.
Answer
Pravin U. Dugel, Executive Chairman, President and CEO, expressed strong confidence in the ordinal endpoint, citing overwhelming success data from the Helios 1 study where a single XPAXLY injection showed improvement across all parameters for DR and DME patients. He highlighted that Helios 2 has an FDA-approved SPA validating the study design and endpoint, and both Helios 2 and 3 are superiority studies.
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