SOTIO Biotech, a clinical-stage biopharmaceutical company owned by PPF Group, today announced that the Boards of Appeal of the European Patent Office (EPO) have upheld European Patent EP 3 444 271 B1, reinforcing intellectual property protection for SOT201, the company's next-generation PD-1-targeting immunocytokine currently being evaluated in a Phase 1 clinical trial. The decision strengthens