Usefulness of Blood Biomarkers for Overall Survival in NSCLC

Launched by MAASTRICHT RADIATION ONCOLOGY · Sep 5, 2013

Keywords

ClinConnect Summary

Lung cancer is the most common cancer type worldwide, with more than 1.1 million annual deaths. There are two types of the disease, namely non-small cell lung cancer (NSCLC) and small-cell lung cancer (SCLC), with the first accounting for 85% of the total number of cases. The 5-year survival across stages remains disappointingly low, around 10% in most countries, due to a high incidence of both loco-regional and distant failure \[3\]. However, during the last decade improved radiotherapy techniques allowed an increase of the radiation dose, while at the same time more effective chemo radiat...

Gender

ALL

Eligibility criteria

• • The cohort consists of approximately 250 patients. As a rule of thumb 5-10 events per variable are needed to avoid overfitting a model. To model 6 clinical variables + 9 biomarker variables 75-150 events are needed. Assuming a two-year survival of 40%, the calculated (constant) hazard rate is 0.46 per year. With an inclusion rate of 50 patients per year, and a follow-up time varying between 0.5 and 4 year, at the time of analysis (November/December 2013) it is expected that there will be 138 events available for analysis.

Trial Officials