{"entity":{"id":"robert-timmerman","kind":"person","name":"Robert D. Timmerman","aka":[],"tldr":"Pioneer of stereotactic body radiotherapy, whose RTOG 0236 trial made SBRT the standard for inoperable early lung cancer.","summary":"Robert Timmerman led the Indiana and RTOG 0236 trials that established stereotactic body radiotherapy as a curative option for medically inoperable stage I lung cancer, with local control above 90%. He defined the toxicity limits for central tumours and leads NRG trials of SBRT in operable patients and oligometastatic disease. His work made ablative radiotherapy a mainstream modality.","asOf":"2026-09-10","links":[{"label":"PubMed","url":"https://pubmed.ncbi.nlm.nih.gov/?term=Timmerman%20RD%5BAuthor%5D%20stereotactic%20lung"}],"tags":["radiotherapy","sbrt","lung"],"related":[],"cancers":["nsclc"],"sections":[],"technologies":["sbrt"],"targets":[],"drugs":[],"companies":[],"institutions":["utsw-simmons"],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":[],"role":"Professor of Radiation Oncology, UT Southwestern Simmons Comprehensive Cancer Center","institutionId":"utsw-simmons","specialisms":["Stereotactic body radiotherapy","Early-stage lung cancer","Oligometastatic disease"],"profiles":[{"label":"PubMed","url":"https://pubmed.ncbi.nlm.nih.gov/?term=Timmerman%20RD%5BAuthor%5D%20stereotactic%20lung"}],"papers":[{"title":"Stereotactic body radiation therapy for inoperable early stage lung cancer (RTOG 0236)","journal":"JAMA","year":2010,"doi":"10.1001/jama.2010.261"},{"title":"Excessive toxicity when treating central tumors in a phase II study of stereotactic body radiation therapy for medically inoperable early-stage lung cancer","journal":"JCO","year":2006,"doi":"10.1200/JCO.2006.07.5937"}]},"route":"/people/robert-timmerman/","neighbours":{"cancer":[{"id":"nsclc","kind":"cancer","name":"Non-small-cell lung cancer","route":"/cancers/nsclc/"}],"technology":[{"id":"sbrt","kind":"technology","name":"SBRT / SABR (stereotactic radiotherapy)","route":"/technologies/sbrt/"}],"institution":[{"id":"utsw-simmons","kind":"institution","name":"Harold C. Simmons Comprehensive Cancer Center, UT Southwestern","route":"/institutions/utsw-simmons/"}]}}