Extension Study on Safety and Rebound Effect of SAT-001 for Myopia in Children

Myopia treatments to date have included both pharmacological and non-pharmacological approaches, with some studies showing effects in reducing myopia progression. However, previous research has also identified a rebound effect, where myopia progresses rapidly after treatment cessation during follow-up. Since myopia progression in children often continues for more than two years, this rebound effect could be a critical factor in determining treatment strategies for pediatric myopia.

This multi-center, open-label, controlled observational study is an extension of a previous confirmatory trial (SAT-001-KP-002) that evaluated SAT-001, a Software as a Medical Device (SaMD) designed to slow myopia progression in pediatric patients. The current study aims to assess the rebound effect and long-term safety of SAT-001 in participants who completed the previous trial, and to collect additional data on rebound myopia and long-term safety outcomes following the completion of the initial trial. A total of 40 participants, aged 5 to less than 9 years, from both the treatment and control groups of the prior study will be followed for 6 months after completing the original trial. Participants from the previous trial who had less than 70% compliance will be excluded from this study. Both groups will continue wearing spectacles, the conventional treatment for myopia, during the extension phase. The primary endpoint is the change in cycloplegic spherical equivalent refractive error (SER) from baseline to 24 weeks, while secondary endpoints include changes in SER at 12 weeks and changes in axial length at 12 and 24 weeks compared to baseline.