COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC:

Get the latest research information from NIH:

Key Record Dates Identifier: NCT01993810
Brief Title: Comparing Photon Therapy To Proton Therapy To Treat Patients With Lung Cancer

First Submitted : November 12, 2013
First Submitted that Met QC Criteria : November 20, 2013
First Posted : November 25, 2013 (Estimate)

Last Update Submitted that Met QC Criteria : August 31, 2018
Last Update Posted : September 5, 2018