Clinical Trials

Experts featured in this series.

All panelists select lorlatinib at 600 mg for this patient based on response rates, duration of disease control, favorable tolerability, and its design intent to achieve superior CNS penetration compared to earlier-generation ROS1 inhibitors, which is particularly relevant given the patient's age, symptomatic disease burden, and risk of future CNS progression.

Experts featured in this series.

Beyond efficacy, the panel identifies the key factors influencing agent selection: brain metastasis activity given the high prevalence of CNS involvement in younger ROS1-positive patients; toxicity profiles (earlier agents cause significant dizziness, taste changes, and neuropathic pain that are poorly tolerated chronically); frequency of clinic visits; and insurance access.

Experts featured in this series.

The panel discusses how patients with ROS1-positive advanced NSCLC arrive in clinic through in-system diagnosis, second opinions, or new patient referrals and the detective work required to ensure complete molecular testing is available before treatment decisions.

Experts featured in this series.

ROS1 gene fusions occur in approximately 1% to 2% of advanced NSCLC cases, a small but clinically meaningful subset predominantly found in younger patients, women, light or never smokers, and those with non-squamous histology, most commonly adenocarcinoma.