TYK MEDICINES-B (02410) surged nearly 7% before noon, gaining 5.82% to HKD 15.08 by the time of writing, with a turnover of HKD 73.088 million.
The company recently announced that early clinical research results for three of its key cyclin-dependent kinase inhibitors (CDKi) drugs—TYK-00540 (CDK2/4i), TY-2699a (CDK7i), and TY-302 (CDK4/6i)—were presented in poster format at the 2025 ESMO Annual Meeting. The ESMO 2025 conference was held from October 17 to 21 in Berlin, Germany.
Notably, at the World Conference on Lung Cancer in September 2025, TYK MEDICINES-B's Phase II pivotal trial of Aidotinib (TY-9591) for non-small cell lung cancer with brain metastases drew significant attention from peers. Aidotinib is a highly selective small-molecule inhibitor developed by the company for EGFR classical mutations.
The company completed enrollment of 224 patients for conditional approval eligibility in November 2024 and submitted a pre-NDA application in April 2025. A formal conditional New Drug Application (NDA) is expected to be filed in Q4 2025.

