Many Patients Excluded From Lung Cancer Clinical Trials Due to Prior Cancer, Study Finds

Lung cancer clinical trials exclude a substantial proportion of patients due to a history of prior cancer, research shows. "The resulting impact on study accrual is sobering," said one author who projected that the effects of these exclusions will only increase with time; there are currently more than 13 million cancer survivors in the U.S., which is a four-fold increase over the past 30 years.