This is a non-interventional, non-treatment, non-randomized, single coordinating center, study to determine the feasibility of decentralized bio-specimen collection in USA-based adult subjects with SCLC, to be conducted in conformance with Good Clinical Practices. Potential study subjects will be referred to contact staff through a dedicated study webpage form or dedicated study phone hotline at the coordinating center (ALCMI) who will handle informed consent, coordinate remote blood sample collection with study subjects, and collect medical records to confirm diagnosis and treatment history. Subjects will also be asked to complete a baseline and follow up questionnaire/survey documenting their self-report diagnosis, treatment history, factors impacting care and quality of life, and needs/preferences regarding supportive resources.
Patients who have been diagnosed with either extensive stage primary SCLC or patients diagnosed with primary NSCLC who experienced histological "transformation" with a SCLC component after initial diagnosis and subsequent treatment (transformed SCLC; tSCLC) will be invited to volunteer for this study.
