PMID- 38063405 OWN - NLM STAT- MEDLINE DCOM- 20240101 LR - 20240123 IS - 2045-7634 (Electronic) IS - 2045-7634 (Linking) VI - 12 IP - 24 DP - 2023 Dec TI - Efficacy and safety of fruquintinib dose-escalation strategy for elderly patients with refractory metastatic colorectal cancer: A single-arm, multicenter, phase II study. PG - 22038-22046 LID - 10.1002/cam4.6786 [doi] AB - BACKGROUND: Fruquintinib has demonstrated significant improvement in overall survival (OS) among previously treated metastatic colorectal cancer (mCRC) patients. However, the utilization of fruquintinib has been constrained by various toxicities, such as hand-foot skin reaction (HFSR) and hypertension, particularly in elderly patients with reduced tolerance to the standard dosage. This study aims to investigate the efficacy and safety of fruquintinib dose-escalation strategy for elderly refractory mCRC patients. PATIENTS AND METHODS: This open-label, single-arm, phase II trial included patients aged 65 years or over with mCRC who had progressed after two or more lines of chemotherapy. Fruquintinib was administered for 21 consecutive days of a 28-day treatment cycle. The starting dose of fruquintinib was 3 mg/day and escalated to 4 mg/day in Week 2 and 5 mg/day in Week 3 if no significant drug-related toxicity was observed. The highest tolerated dose from Cycle 1 would be administered in Cycle 2 and all subsequent cycles. Before commencing treatment, all enrolled patients underwent a G8 questionnaire and comprehensive geriatric assessments. The primary endpoint of the study was progression-free survival (PFS). RESULTS: A total of 29 patients were enrolled and all started fruquintinib at 3 mg/day. Fifteen patients (51.7%) were subsequently escalated to 4 mg/day and 4 (13.8%) to 5 mg/day. Only four (13.8%) patients discontinued treatment due to adverse events (AEs). The median PFS was 3.8 months (95% CI, 2.7-4.9), and the median OS was 7.6 months (95% CI, 6.5-8.7). Treatment-related adverse events (TRAEs) were observed in all 29 patients (100%). The most frequently occurring (>10%) TRAEs greater than Grade 3 were HFSR (20.7%), hypertension (20.7%), and diarrhea (10.3%). CONCLUSION: Our study indicated that a dose of 4 mg/day was well tolerated by most elderly patients, suggesting that fruquintinib dose-escalation strategy during the first cycle could serve as a viable alternative to the standard 5 mg/day dosing. CI - (c) 2023 The Authors. Cancer Medicine published by John Wiley & Sons Ltd. FAU - Tan, Sirui AU - Tan S AD - Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Sichuan, China. FAU - Zhang, Shunyu AU - Zhang S AD - Gastric Cancer Center, West China Hospital, Sichuan University, Sichuan, China. FAU - Zhou, Nan AU - Zhou N AD - Gastric Cancer Center, West China Hospital, Sichuan University, Sichuan, China. FAU - Cai, Xiaohong AU - Cai X AD - Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China. FAU - Yi, Cheng AU - Yi C AUID- ORCID: 0000-0002-5963-5751 AD - Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Sichuan, China. FAU - Gou, Hongfeng AU - Gou H AUID- ORCID: 0000-0002-2071-6773 AD - Department of Medical Oncology, Cancer Center, West China Hospital, Sichuan University, Sichuan, China. AD - Gastric Cancer Center, West China Hospital, Sichuan University, Sichuan, China. LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study DEP - 20231208 PL - United States TA - Cancer Med JT - Cancer medicine JID - 101595310 RN - 49DXG3M5ZW (HMPL-013) RN - 0 (Benzofurans) SB - IM MH - Aged MH - Humans MH - *Colorectal Neoplasms/pathology MH - *Colonic Neoplasms/drug therapy MH - *Benzofurans/adverse effects MH - *Rectal Neoplasms/drug therapy MH - *Hypertension/chemically induced MH - Antineoplastic Combined Chemotherapy Protocols/therapeutic use PMC - PMC10757135 OTO - NOTNLM OT - dose-escalation OT - fruquintinib OT - geriatric assessment OT - mCRC OT - third-line therapy COIS- The authors have no conflict of interest. EDAT- 2023/12/08 12:42 MHDA- 2024/01/02 11:42 PMCR- 2023/12/08 CRDT- 2023/12/08 09:04 PHST- 2023/08/24 00:00 [revised] PHST- 2023/07/03 00:00 [received] PHST- 2023/09/30 00:00 [accepted] PHST- 2024/01/02 11:42 [medline] PHST- 2023/12/08 12:42 [pubmed] PHST- 2023/12/08 09:04 [entrez] PHST- 2023/12/08 00:00 [pmc-release] AID - CAM46786 [pii] AID - 10.1002/cam4.6786 [doi] PST - ppublish SO - Cancer Med. 2023 Dec;12(24):22038-22046. doi: 10.1002/cam4.6786. Epub 2023 Dec 8.