Datopotamab deruxtecan showed clinically meaningful overall survival improvement vs. chemotherapy in patients with advanced nonsquamous non-small cell lung cancer in TROPION-Lung01 Phase III trial

High-level overall survival (OS) results from the TROPION-Lung01 Phase III trial, which previously met the dual primary endpoint of progression-free survival (PFS), numerically favoured datopotamab deruxtecan (Dato-DXd) compared to docetaxel in the overall trial population of patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) treated with at least one prior line of therapy. Survival results did not reach statistical significance in the overall trial population. In the prespecified subgroup of patients with nonsquamous NSCLC, datopotamab deruxtecan showed a clinically meaningful improvement in OS compared to docetaxel, the current standard-of-care chemotherapy.

The final analysis of OS builds on the positive progression-free survival (PFS) results presented at the 2023 European Society for Medical Oncology Congress which showed datopotamab deruxtecan demonstrated a statistically significant improvement in PFS in the overall trial population and a clinically meaningful PFS benefit in patients with nonsquamous NSCLC. In TROPION-Lung01, patient enrolment by tumour histology was balanced across treatment arms and consistent with real-world incidence with approximately 75% of patients having nonsquamous NSCLC.^1,2

The safety profile of datopotamab deruxtecan in TROPION-Lung01 was consistent with the previous analysis including fewer dose reductions or discontinuations due to adverse events compared to docetaxel, and no new safety concerns identified. No new interstitial lung disease events of any grade were adjudicated as drug-related.

Susan Galbraith, Executive Vice President, Oncology R&D, AstraZeneca, said: “Datopotamab deruxtecan is the only investigational therapy to show a clinically meaningful survival improvement in patients with previously treated nonsquamous non-small cell lung cancer versus docetaxel, which has long been unsurpassed in this post-targeted treatment and post-immunotherapy setting. These results reinforce the potential for datopotamab deruxtecan to replace conventional chemotherapy in this late-line setting and underscore our confidence in ongoing trials evaluating this therapy in first-line lung cancer.”