PMID- 24488322 OWN - NLM STAT- MEDLINE DCOM- 20140715 LR - 20140326 IS - 1432-0843 (Electronic) IS - 0344-5704 (Linking) VI - 73 IP - 4 DP - 2014 Apr TI - Figitumumab in patients with refractory metastatic colorectal cancer previously treated with standard therapies: a nonrandomized, open-label, phase II trial. PG - 695-702 LID - 10.1007/s00280-014-2391-2 [doi] AB - PURPOSE: Figitumumab (CP-751,871) is a human IgG2 monoclonal antibody that binds and down-regulates insulin-like growth factor receptor-1 (IGF-1R) and inhibits activation of this receptor by IGF-1 and IGF-2. This nonrandomized, open-label, single-arm, phase II trial evaluated the antitumor activity and safety of figitumumab in patients with metastatic colorectal cancer that was refractory to >/=2 systemic therapies. METHODS: Cohorts A and B received intravenous figitumumab 20 and 30 mg/kg in 3-week cycles, respectively. Both received loading doses (20 or 30 mg/kg) on days 1 and 2 of cycle 1. The primary endpoint was 6-month survival (null hypothesis for each cohort, H0: p6 mo surv = 0.45). Secondary endpoints included progression-free survival (PFS), overall survival (OS), objective response, safety, and pharmacokinetics. RESULTS: A total of 168 patients (Cohort A, n = 85; Cohort B, n = 83) received figitumumab. Estimated 6-month survival was 49.4 % (95 % CI 38.8-60.0) in Cohort A and 44.1 % (95 % CI 33.4-54.9) in Cohort B. Median OS was 5.8 and 5.6 months, respectively; median PFS was 1.4 months in both cohorts. No objective partial or complete responses occurred. The respective rates of treatment discontinuation due to treatment-related adverse events (AEs) were 5 and 7 %. The most common grade 3/4 nonhematologic AEs in both cohorts were hyperglycemia and asthenia. No grade 4 hematologic laboratory abnormalities occurred. Most deaths were reported as due to progressive disease; none were due to figitumumab. CONCLUSION: Six-month survival data do not support further study of figitumumab 20 or 30 mg/kg in this patient population. FAU - Becerra, Carlos R AU - Becerra CR AD - Texas Oncology-Sammons Cancer Center at Baylor, 3410 Worth Street, Dallas, TX, 75246, USA, Carlos.Becerra@usoncology.com. FAU - Salazar, Ramon AU - Salazar R FAU - Garcia-Carbonero, Rocio AU - Garcia-Carbonero R FAU - Thomas, Anne L AU - Thomas AL FAU - Vazquez-Mazon, Federico J AU - Vazquez-Mazon FJ FAU - Cassidy, James AU - Cassidy J FAU - Maughan, Tim AU - Maughan T FAU - Castillo, Manuel Gallen AU - Castillo MG FAU - Iveson, Tim AU - Iveson T FAU - Yin, Donghua AU - Yin D FAU - Green, Stephanie AU - Green S FAU - Bergsland, Emily K AU - Bergsland EK LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20140201 PL - Germany TA - Cancer Chemother Pharmacol JT - Cancer chemotherapy and pharmacology JID - 7806519 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antineoplastic Agents) RN - VE267FC2UB (figitumumab) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Antibodies, Monoclonal/adverse effects/*therapeutic use MH - Antineoplastic Agents/adverse effects/therapeutic use MH - Cohort Studies MH - Colorectal Neoplasms/*drug therapy/pathology MH - Female MH - Humans MH - Male MH - Middle Aged MH - Neoplasm Metastasis MH - Neoplasm Staging MH - Survival Analysis EDAT- 2014/02/04 06:00 MHDA- 2014/07/16 06:00 CRDT- 2014/02/04 06:00 PHST- 2013/12/20 00:00 [received] PHST- 2014/01/13 00:00 [accepted] PHST- 2014/02/04 06:00 [entrez] PHST- 2014/02/04 06:00 [pubmed] PHST- 2014/07/16 06:00 [medline] AID - 10.1007/s00280-014-2391-2 [doi] PST - ppublish SO - Cancer Chemother Pharmacol. 2014 Apr;73(4):695-702. doi: 10.1007/s00280-014-2391-2. Epub 2014 Feb 1.