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Stereotactic body radiation therapy for T1N0M0 non-small cell lung cancer. First report for inoperable population of a phase II trial by Japan Clinical Oncology Group (JCOG-0403). Y. Nagata * , M. Hiraoka # , T. Shibata, H. Onishi , M. Kokubo ,
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Stereotactic body radiation therapy for T1N0M0 non-small cell lung cancer. First report for inoperable population of a phase II trial by Japan Clinical Oncology Group (JCOG-0403) Y. Nagata*,M. Hiraoka#, T. Shibata, H. Onishi, M. Kokubo, K. Karasawa, Y. Shioyama, R. Onimaru,E. Kunieda, S. Ishikura Radiation Therapy Study Group of Japan Clinical Oncology Group *Study Coordinator, #Primary Investigator ASTRO, Boston, Oct. 28-31, 2012.
Stereotactic body radiation therapy (SBRT) delivers very targeted beams of radiation to a small area over a few days • SBRT is less invasive than surgery • SBRT is considered to work against T1N0M0 lung cancers • First report for operable population was presented in ASTRO 2010. • This presentation is the first report for inoperable population.
First clinical trial to study SBRT for both inoperable & operable stage IA lung cancers • From 2004 to 2008, 104 patients from 15 institutions with early-stage inoperable non-small cell lung cancer were studied • Patients underwent 4 times daily radiotherapy over the course of four to eight days • Each treatment is non-invasive and painless, much like receiving an X-ray
Patients followed for almost three years (37 months) after treatment • Overall survival rate for patients three years after SBRT was 60 percent • Patients reported only mild side effects from the treatment • Patients with inoperable early lung cancer should consider this treatment
Conv RT vs. SBRT * In all eligible patients (n=100)