PMID- 16982549 OWN - NLM STAT- MEDLINE DCOM- 20070216 LR - 20210417 IS - 0284-186X (Print) IS - 0284-186X (Linking) VI - 45 IP - 7 DP - 2006 TI - Interim analysis of a prospective phase I/II trial of SBRT for liver metastases. PG - 848-55 AB - Stereotactic Body Radiation Therapy (SBRT) is a potent means of systemic cytoreductive therapy for selected patients with metastatic cancer. We here report an interim analysis of a prospective Phase I/II study of SBRT for liver metastases. Eligible patients with liver metastases met these criteria: (1) maximum tumor diameter < 6 cm; (2) < or =3 discrete lesions; (3) treatment planning confirmed > or = 700 cm3 of normal liver receives < or =15 Gy. The gross tumor volume (GTV) was expanded 5-10 mm to yield the planning target volume, which received 60 Gy in 3 fractions of SBRT over 3-14 days in the Phase II component of the trial. As of July, 2006, 36 patients have been enrolled: 18 in Phase I, 18 in Phase II. The median age was 58 years (range 27-91); the M:F ratio was 20:16. The most common primary sites were lung (n = 10), colorectal (n = 9), and breast (n = 4). Among 21 pts with > or = 6 months post-SBRT follow-up (median 19 months, range 6-29), one instance of SBRT-related grade 3 toxicity occurred in subcutaneous tissue superficial to the liver. No grade IV toxicity occurred. For 28 discrete lesions treated (median GTV 14 cm3, range 1-98) the 18 month actuarial local control estimate is 93%. This interim analysis indicates that a very high rate of durable in-field tumor control can be safely achieved with SBRT to 1-3 liver lesions as administered in this protocol, to a prescription dose of 60 Gy in 3 fractions. FAU - Kavanagh, Brian D AU - Kavanagh BD AD - Department of Radiation Oncology, University of Colorado, Aurora, Colorado 80045, USA. Brian.Kavanagh@uchsc.edu FAU - Schefter, Tracey E AU - Schefter TE FAU - Cardenes, Higinia R AU - Cardenes HR FAU - Stieber, Volker W AU - Stieber VW FAU - Raben, David AU - Raben D FAU - Timmerman, Robert D AU - Timmerman RD FAU - McCarter, Martin D AU - McCarter MD FAU - Burri, Stuart AU - Burri S FAU - Nedzi, Lucien A AU - Nedzi LA FAU - Sawyer, Timothy E AU - Sawyer TE FAU - Gaspar, Laurie E AU - Gaspar LE LA - eng PT - Clinical Trial, Phase I PT - Clinical Trial, Phase II PT - Journal Article PL - Sweden TA - Acta Oncol JT - Acta oncologica (Stockholm, Sweden) JID - 8709065 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma/diagnostic imaging/*secondary/*surgery/therapy MH - Combined Modality Therapy/adverse effects MH - Drug-Related Side Effects and Adverse Reactions MH - Female MH - Humans MH - Liver Neoplasms/diagnostic imaging/*secondary/*surgery/therapy MH - Male MH - Middle Aged MH - Positron-Emission Tomography MH - Radiography MH - Radiosurgery/adverse effects/*methods MH - Radiotherapy/adverse effects MH - Radiotherapy Dosage MH - Salvage Therapy MH - Whole Body Imaging EDAT- 2006/09/20 09:00 MHDA- 2007/02/17 09:00 CRDT- 2006/09/20 09:00 PHST- 2006/09/20 09:00 [pubmed] PHST- 2007/02/17 09:00 [medline] PHST- 2006/09/20 09:00 [entrez] AID - V383JQ33614Q00H7 [pii] AID - 10.1080/02841860600904870 [doi] PST - ppublish SO - Acta Oncol. 2006;45(7):848-55. doi: 10.1080/02841860600904870.