The goal of the study is to collect data on patients treated outside of a clinical trial (in routine clinical practice) with standard of care osimertinib with or without chemotherapy in Epidermal Growth Factor Receptor (EGFR)-mutant Non-Small Cell Lung Cancer (NSCLC) to better understand the safety and effectiveness of these standard of care regimens.

This study tests the feasibility of using real-world data collection through the recruitment of well-characterized patients into a registry, spanning academic and community practice sites to determine patient outcomes in all-comers. The scientific community would further benefit from a greater understanding of the safety and effectiveness of newly approved therapies prescribed in routine clinical practice.

Non-interventional (observational) study with 250 participants per exposure group (maximum accrual up to 538 total participants) comparing outcomes in patients with EGFR-mutated NSCLC, not being treated in a clinical trial but receiving standard of care osimertinib +/- chemotherapy.

The treating physician determines whether a patient will receive standard of care single agent osimertinib or osimertinib with chemotherapy and the planned treatment is recorded at registration.

Clinical/Imaging assessments will be per the treating physician.

Inclusion Criteria:

• Patient must have a pathologically-confirmed diagnosis of non-small cell lung cancer (NSCLC).
• Patient must have advanced disease, defined as IIIB (not amenable to definitive multi-modality therapy), IIIC, or IV (includes local or distant recurrent disease after a prior diagnosis of Stage I-III disease). All staging is via the American Joint Committee on Cancer (AJCC)/International Association for the Study of Lung Cancer (IASLC) 8th edition staging criteria.
• Patient tumor must have somatic activating sensitizing mutation in EGFR (e.g., but not limited to Exon 19 deletion, L858R, E709X, G719X, exon 19 insertions, L861Q, S768I). Patients with non-sensitizing mutations in EGFR (EGFR exon 20 insertions) are not eligible. Plasma, cytology, or tumor tissue can be utilized for standard of care mutation testing.
• Prior chemotherapy and/or immunotherapy administered as primary treatment for NSCLC before EGFR mutation was identified is allowed ≤ 45 days of study registration to allow for return of sequencing information.
• Prior treatment with osimertinib administered as primary treatment for NSCLC is allowed ≤ 30 days of study registration (prior treatment with any other EGFR TKI agent is not allowed).
• Patient must not be participating in EA5182 or any other cancer treatment trial. Osimertinib or osimertinib + chemotherapy/immunotherapy given as first-line treatment for this disease cannot be given as part of a clinical trial.
• Patients that have received prior radiation therapy in any setting for this disease are eligible.
• Adults age ≥ 18 years.

Patients with EGFR-mutated NSCLC, not being treated in a clinical trial but receiving osimertinib +/- chemotherapy at academic and community practices participating in PrE1702 registry.

Data is proprietary.