Simplified Exercise-based Risk Assessment in Lung Cancer

Physiological evaluation is part of the preoperative risk estimation in patients with lung cancer, and it aids in the choice of treatment. Ventilatory efficiency during exercise has emerged as a strong predictor of major postoperative complications, so far determined during a maximal cardiopulmonary exercise test. However, this test is limited by its availability and high cost, due to the requirement of high-technological equipment and advanced expertise. The current project aims to evaluate a simplified and accessible method for risk evaluation before decision on treatment in lung cancer. It builds on recent advances in technology and knowledge and combines a simple, low-intensity cycling test with measurement of ventilatory efficiency (end-tidal carbon dioxide pressure) with a handheld monitor. In a prospective, multi-center design the investigators will include patients evaluated for suspected lung cancer. The main objective is to establish threshold values for end-tidal carbon dioxide associated with low respectively high risk of major complications in patients undergoing surgery. In addition, the study aims to determine if end-tidal carbon dioxide can predict severe side-effects during neoadjuvant or curatively aiming systemic therapy. The project is closely linked to clinical practice, and the results can be easily implemented due to the simple and cost-efficient methodology. the suggested simplified approach would also allow access to physiological evaluation where more advanced methods are unavailable.

NCT Number	NCT07506889
Lead Sponsor	Linkoeping University Collaborators: Region Östergötland, Region Skane, Region Kalmar län, Region Blekinge, Region Jönköping County
Conditions	Lung Cancer (Diagnosis), Lobectomy, Surgery Complications, Neoadjuvant Chemoimmunotherapy, End-Tidal Carbon Dioxide, Exercise
Enrollment	500 participants
Start Date	2026-04-01
Primary Completion	2029-12 (estimated)
Study Completion	2029-12 (estimated)
Updated on ClinicalTrials.gov	2026-04-08