Exhibit 99.1 Gain Therapeutics Reports Financial Results for Second Quarter 2025 and Provides Corporate Update Reached full enrolment of Phase 1b study evaluating GT-02287 in Parkinson's Disease (PD) with or without GBA1 mutations during 2Q 2025, earlier than anticipated Analysis of functional changes and biomarker activity at 90 days will be available during 4Q 2025 In July 2025 following the close of 2Q 2025, Gain completed an underwritten public of ering that resulted in approximately $7.1 million of net ...