Datopotamab Deruxtecan (Dato-DXd) for Non-Small Cell Lung Cancer (NSCLC) Patients With Active Brain Metastases

This trial will study a type of advanced lung cancer that is defined as non-squamous non-small cell lung cancer (NSCLC) with active brain metastases (BMs). This type of cancer originates in peripheral lung tissue, which is composed of cancer cells that look different from normal lung cells when viewed under a microscope and is characterized by the presence of BMs, which indicates the spreading of such cancer cells into the brain. NSCLC tumors often have specific genetic alterations or mutations that drive their growth and are known as actionable genomic alterations (AGA). This trial will include patients with NSCLC tumors characterized by the presence or absence of such AGA. Patients will be treated with datopotamab deruxtecan (Dato-DXd), a Tumor-associated calcium signal transducer 2 (TROP2)-directed antibody drug conjugate (ADC) that works by targeting TROP2 protein that is differentially expressed in cancer cells. The main purpose of the study is to analyze the efficacy (to find out how effective a treatment is) of Dato-DXd in patients who have NSCLC with active BMs. Dato-DXd efficacy will be determined by assessing the proportion of patients who experience a significant reduction in tumor size or whose cancer disappears completely, as determined at any timepoint during the study period by the investigators conducting the trial.