Roche’s collaborator MediLink announces phase III data for Tam-Peli showing significantly improved overall survival in Chinese patient population with relapsed small-cell lung cancer

Basel, 13 September 2026 - Roche (SIX: RO, ROP; OTCQX: RHHBY) today announced that its collaborator MediLink 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.¹ 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 vs. 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