Cancer and Leukemia Group B. A national (US) clinical research group sponsored by the NCI, with its central office headquartered at the University of Chicago and its statistical centre located at Duke University.
Meyerhardt and his group published an analysis of data from a National Cancer Institute-sponsored study called CALGB 89803 that involved 1,264 patients with stage II colon cancer, randomized to treatment with 5-fluorouracil and leucovorin with or without irinotecan following surgical resection.
The phase III CALGB 80405 trial in which patients are randomized to FOLFIRI/FOLFOX plus cetuximab or bevacizumab or cetuximab and bevacizumab  will hopefully answer this question and establish which targeted agent is the preferred combination partner.
The practice is affiliated with national Clinical Study protocol groups, CALGB,(Cancer and Leukemia Group B), and NSABP(National Surgical Adjuvant Breast and Bowel Project), offering patients the opportunity of national clinical studies, through The Vermont Regional Cancer Center.