PMID- 31451367 OWN - NLM STAT- MEDLINE DCOM- 20200723 LR - 20200723 IS - 1938-0674 (Electronic) IS - 1533-0028 (Linking) VI - 18 IP - 4 DP - 2019 Dec TI - ACORN: Observational Study of Bevacizumab in Combination With First-Line Chemotherapy for Treatment of Metastatic Colorectal Cancer in the UK. PG - 280-291.e5 LID - S1533-0028(18)30546-2 [pii] LID - 10.1016/j.clcc.2019.07.003 [doi] AB - INTRODUCTION: Survival in metastatic colorectal cancer is worse than expected in the United Kingdom. Real-world data are needed to better understand UK-specific treatment practices that may explain this. PATIENTS AND METHODS: The Avastin ColORectal Non-interventional (ACORN) study is a multicenter, prospective, UK-based, observational, phase 4 study (ClinicalTrials.gov, NCT01506167) that recruited patients with metastatic colorectal cancer scheduled to receive bevacizumab in combination with first-line chemotherapy as part of routine clinical practice. Primary end points included progression-free survival, overall survival (OS), serious adverse events (AEs), and grade 3 to 5 bevacizumab-related AEs. RESULTS: A total of 714 patients were recruited between August 30, 2012, and February 4, 2014. Median follow-up was 16.4 months. Median first-line chemotherapy duration was 5.6 months, with capecitabine/oxaliplatin (265 [37.1%]) being the most common regimen. Median total chemotherapy duration was 8.1 months and did not vary by geographic location in the UK. Median progression-free survival (95% confidence interval) was 8.7 (8.2-9.1) months, and median OS was 17.8 (16.1-19.3) months. There was no significant difference in efficacy by chemotherapy regimen administered. Ninety-nine patients (13.9%) received bevacizumab after disease progression. The safety profile of bevacizumab was consistent with previous studies. CONCLUSION: ACORN provided evidence that there were no clear differences observed in outcomes between bevacizumab with capecitabine-based chemotherapy and fluorouracil-based regimens, and confirmed the safety profile of bevacizumab in a real-world UK-based population. The lower-than-expected OS is likely due to the short total chemotherapy duration, less frequent use of bevacizumab after disease progression, and higher rates of in-situ primary tumors. CI - Copyright (c) 2019 Elsevier Inc. All rights reserved. FAU - Khakoo, Shelize AU - Khakoo S AD - Department of Medicine, The Royal Marsden Hospital, London & Surrey, UK. FAU - Chau, Ian AU - Chau I AD - Department of Medicine, The Royal Marsden Hospital, London & Surrey, UK. FAU - Pedley, Ian AU - Pedley I AD - Northern Centre for Cancer Care, Freeman Hospital, Newcastle-upon-Tyne, UK. FAU - Ellis, Richard AU - Ellis R AD - Department of Clinical Oncology, Royal Cornwall Hospital, Truro, UK. FAU - Steward, Will AU - Steward W AD - Leicester Cancer Research Centre, Leicester Royal Infirmary, Leicester, UK. FAU - Harrison, Mark AU - Harrison M AD - Mount Vernon Cancer Centre, Mount Vernon Hospital, Northwood, UK. FAU - Baijal, Shobhit AU - Baijal S AD - Department of Oncology, Heartlands Hospital, Birmingham, UK. FAU - Tahir, Saad AU - Tahir S AD - Broomfield Hospital, Chelmsford, UK. FAU - Ross, Paul AU - Ross P AD - Department of Oncology, Guy's and St Thomas' Hospital, London, UK. FAU - Raouf, Sherif AU - Raouf S AD - Queen's Hospital, Romford, UK. FAU - Ograbek, Agnes AU - Ograbek A AD - Medical Affairs, Roche Products Limited, Welwyn Garden City, UK. FAU - Cunningham, David AU - Cunningham D AD - Department of Medicine, The Royal Marsden Hospital, London & Surrey, UK. Electronic address: david.cunningham@rmh.nhs.uk. CN - ACORN investigators LA - eng SI - ClinicalTrials.gov/NCT01506167 GR - DH_/Department of Health/United Kingdom PT - Clinical Trial, Phase III PT - Journal Article PT - Multicenter Study PT - Observational Study PT - Research Support, Non-U.S. Gov't DEP - 20190711 PL - United States TA - Clin Colorectal Cancer JT - Clinical colorectal cancer JID - 101120693 RN - 04ZR38536J (Oxaliplatin) RN - 2S9ZZM9Q9V (Bevacizumab) RN - 6804DJ8Z9U (Capecitabine) RN - Q573I9DVLP (Leucovorin) RN - U3P01618RT (Fluorouracil) RN - XT3Z54Z28A (Camptothecin) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Antineoplastic Combined Chemotherapy Protocols/*therapeutic use MH - Bevacizumab/administration & dosage MH - Camptothecin/administration & dosage MH - Capecitabine/administration & dosage MH - Colorectal Neoplasms/*drug therapy/pathology MH - Female MH - Fluorouracil/administration & dosage MH - Follow-Up Studies MH - Humans MH - Leucovorin/administration & dosage MH - Male MH - Middle Aged MH - Neoplasm Metastasis MH - Oxaliplatin/administration & dosage MH - Prognosis MH - Prospective Studies MH - Survival Rate MH - United Kingdom OTO - NOTNLM OT - Overall survival OT - Real world OT - Safety OT - Treatment duration OT - Treatment practices EDAT- 2019/08/28 06:00 MHDA- 2020/07/24 06:00 CRDT- 2019/08/28 06:00 PHST- 2018/11/14 00:00 [received] PHST- 2019/04/26 00:00 [revised] PHST- 2019/07/07 00:00 [accepted] PHST- 2019/08/28 06:00 [pubmed] PHST- 2020/07/24 06:00 [medline] PHST- 2019/08/28 06:00 [entrez] AID - S1533-0028(18)30546-2 [pii] AID - 10.1016/j.clcc.2019.07.003 [doi] PST - ppublish SO - Clin Colorectal Cancer. 2019 Dec;18(4):280-291.e5. doi: 10.1016/j.clcc.2019.07.003. Epub 2019 Jul 11.