MediLink announces positive Phase III data for Tam-Peli

14 September 2026

Over the weekend, Roche (ROG: SIX) announced that its collaborator MediLink Therapeutics released interim results from the randomised phase III TAISHAN-302 trial evaluating Tam-Peli (tambotatug pelitecan, YL201) versus topotecan in Chinese patients with relapsed small-cell lung cancer (SCLC) who progressed after prior platinum-based chemotherapy with or without a PD-L1 inhibitor.

The trial met its primary endpoint of overall survival (OS) with Tam-Peli demonstrating a statistically-significant and clinically-meaningful OS benefit, reducing the risk of death by 54% (median OS 13.3 versus 9.4 months; stratified HR=0.46; p<0.0001). Tam-Peli also showed robust efficacy across secondary endpoints, significantly extending progression-free survival (PFS) (median PFS 7.4 vs 2.8 months) and response rates (59.1% vs 9.7%) compared to standard-of-care topotecan.1

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