Integrating Dato-DXd Into Early-Line EGFR-Mutant NSCLC Management

In a discussion with CancerNetwork®, Jacob Sands, MD, assistant professor of Medicine at Harvard Medical School, thoracic oncologist at the Dana-Farber Cancer Institute, and investigator of the phase 2 TROPION-Lung05 trial (NCT04484142) and phase 3 TROPION-Lung01 trial (NCT04656652), which supported the accelerated approval of datopotamab deruxtecan-dlnk (dato-DXd; Datroway) in pretreated EGFR-mutant metastatic NSCLC in June 2025, discussed safety and efficacy considerations for the agent’s use.1-3

He began by outlining a combined cohort of the TROPION-Lung05 and TROPION-Lung01 trials, which collectively showed an efficacy benefit with dato-DXd in patients with EGFR-mutant disease vs docetaxel. In the combined cohort, the median progression-free survival with dato-DXd reached 5.8 months, and the median overall survival was 15.6 months. Additional efficacy data revealed an objective response rate of 45% (95% CI, 35%-54%) and a median duration of response of 6.5 months (95% CI, 4.2-8.4).

Furthermore, Sands highlighted the most common toxicities observed with dato-DXd in this population, which included stomatitis, interstitial lung disease (ILD), and ocular toxicities. He also reviewed management strategies to mitigate their incidence and severity. Specifically, remedies include prophylaxis, oral hygiene, and dose reductions for stomatitis; using preservative-free eye drops and ophthalmology visits for ocular toxicity management and prevention; and monitoring for any incidence of high-grade ILD.

He then touched upon next steps for research in this disease state, including the phase 2 ORCHARD trial (NCT03944772) evaluating dato-DXd with osimertinib (Tagrisso) in the second-line setting after progression on osimertinib and the phase 3 TROPION-Lung15 trial (NCT06417814), which is evaluating chemotherapy vs dato-DXd alone or with osimertinib.4,5

Sands concluded by discussing the implications for toxicity management in patients who experience responses that exceed median outcomes, suggesting that the toxicity profile may be more severe for this group. Emphasizing the broadness of outcomes with any drug, he expressed that patients with experiences that deviate from the observed median outcome are an important consideration for clinical practice.

References

1. Sands J, Ahn MJ, Lisberg A, et al. Datopotamab deruxtecan in advanced or metastatic non-small cell lung cancer with actionable genomic alterations: results from the phase II TROPION-Lung05 study. J Clin Oncol. Published online January 6, 2025. doi:10.1200/JCO-24-01349
2. Ahn MJ, Tanaka K, Paz-Ares L, et al. Datopotamab deruxtecan versus docetaxel for previously treated advanced or metastatic non-small cell lung cancer: the randomized, open-label phase III TROPION-Lung01 study. J Clin Oncol. Published online September 9, 2024. doi:10.1200/JCO-24-01544
3. FDA grants accelerated approval to datopotamab deruxtecan-dlnk for EGFR-mutated non-small cell lung cancer. News release. FDA. June 23, 2025. Accessed July 29, 2025. https://tinyurl.com/mtay7ab9
4. Yu HA, Goldberg SB, Le X, et al. Biomarker-directed phase II platform study in patients with EGFR sensitizing mutation-positive advanced/metastatic non-small cell lung cancer whose disease has progressed on first-line osimertinib therapy (ORCHARD). Clin Lung Cancer. 2021;22(6):601-606. doi:10.1016/j.cllc.2021.06.006
5. A study to investigate the efficacy and safety of dato-DXd with or without osimertinib compared with platinum based doublet chemotherapy in participants with EGFR-mutated locally advanced or metastatic non-small cell lung cancer (TROPION-Lung15). ClinicalTrials.gov. Updated July 16, 2025. Accessed July 29, 2025. https://tinyurl.com/56z3dmsp