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Boeckxstaens G, Ayad S, Dukes G, Essandoh M, Gryder R, Kamble P, Tackett J, Thakker P, Williams J, Zhang Y, Wade PR. A randomized phase 2 study of the 5-HT 4 receptor agonist felcisetrag for postoperative gastrointestinal dysfunction after bowel surgery. Am J Surg 2024; 234:162-171. [PMID: 38724293 DOI: 10.1016/j.amjsurg.2024.04.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/15/2024] [Accepted: 04/26/2024] [Indexed: 07/06/2024]
Abstract
BACKGROUND Felcisetrag (5-hydroxytryptamine-4 receptor [5-HT4] agonist) is under investigation as prophylaxis or active treatment for accelerating resolution of gastrointestinal function post-surgery. METHODS Phase 2, randomized, placebo-controlled, parallel five-arm, double-blind, multicenter study (NCT03827655) in 209 adults undergoing open or laparoscopic-assisted bowel surgery. Patients received intravenous placebo, felcisetrag 0.1 mg/100 mL or 0.5 mg/100 mL pre-surgery only, or pre-surgery and daily post-surgery until return of gastrointestinal function or for up to 10 days. PRIMARY ENDPOINT time to recovery of gastrointestinal function. RESULTS Median time to recovery of gastrointestinal function was 2.6 days for both felcisetrag 0.5 mg daily and 0.5 mg pre-surgery versus 1.9 days for placebo (p > 0.05). There were no notable differences in adverse events between treatment arms. CONCLUSIONS Felcisetrag was well tolerated with no new safety concerns. However, no clinically meaningful difference in time to recovery of gastrointestinal function versus placebo was observed. Further investigation of the utility of 5-HT4 agonists in complicated, open abdominal surgeries may be warranted.
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Affiliation(s)
- Guy Boeckxstaens
- Center of Intestinal Neuroimmune Interaction, Division of Gastroenterology, Translational Research Center for Gastrointestinal Disorders (TARGID), University Hospital Leuven, 3000, Leuven, Belgium.
| | - Sabry Ayad
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH and Department of Outcomes Research, Anesthesiology Institute, Fairview Hospital, Cleveland Clinic, Cleveland, OH, 44111, USA
| | - George Dukes
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
| | - Michael Essandoh
- Clinical Anesthesiology, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
| | - Ryan Gryder
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
| | - Pravin Kamble
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
| | - Jason Tackett
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
| | - Paresh Thakker
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
| | - James Williams
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
| | - Yanwei Zhang
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
| | - Paul R Wade
- Takeda Development Center Americas, Inc., Cambridge, MA, 02142, USA
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Talwar G, Sharma S, McKechnie T, Yang S, Khamar J, Hong D, Doumouras A, Eskicioglu C. Prucalopride and Bowel Function Post Gastrointestinal Surgery: Systematic Review and Meta-Analysis of Randomized Controlled Trials. Am Surg 2024; 90:1682-1701. [PMID: 38530772 DOI: 10.1177/00031348241241683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
BACKGROUND Prolonged postoperative ileus (PPOI) contributes to morbidity and prolonged hospitalization. Prucalopride, a selective 5-hydroxytryptamine receptor agonist, may enhance bowel motility. This review assesses whether the perioperative use of prucalopride compared to placebo is associated with accelerated return of bowel function post gastrointestinal (GI) surgery. METHODS OVID, CENTRAL, and EMBASE were searched as of January 2024 to identify randomized controlled trials (RCTs) comparing prucalopride and placebo for prevention of PPOI in adult patients undergoing GI surgery. The primary outcomes were time to stool, time to flatus, and time to oral tolerance. The secondary outcomes were incidence of PPOI, length of stay (LOS), postoperative complications, adverse events, and overall costs. The Cochrane risk of bias tool for randomized trials and the Grading of Recommendations, Assessment, Development, and Evaluations framework were used. An inverse variance random effects model was used. RESULTS From 174 citations, 3 RCTs with 139 patients in each treatment group were included. Patients underwent a variety of GI surgeries. Patients treated with prucalopride had a decreased time to stool (mean difference 36.82 hours, 95% CI 59.4 to 14.24 hours lower, I2 = 62%, low certainty evidence). Other outcomes were not statistically significantly different (very low certainty evidence). Postoperative complications and adverse events could not be meta-analyzed due to heterogeneity; yet individual studies suggested no significant differences (very low certainty evidence). DISCUSSION Current RCT evidence suggests that prucalopride may enhance postoperative return of bowel function. Larger RCTs assessing patient important outcomes and associated costs are needed before routine use of this agent.
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Affiliation(s)
- Gaurav Talwar
- Department of Surgery, Division of General Surgery, McMaster University, Hamilton, ON, Canada
| | - Sahil Sharma
- Department of Surgery, Division of General Surgery, McMaster University, Hamilton, ON, Canada
| | - Tyler McKechnie
- Department of Surgery, Division of General Surgery, McMaster University, Hamilton, ON, Canada
| | - Shuling Yang
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Jigish Khamar
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada
| | - Dennis Hong
- Department of Surgery, Division of General Surgery, McMaster University, Hamilton, ON, Canada
- Department of Surgery, Division of General Surgery, St. Joseph's Healthcare, Hamilton, ON, Canada
| | - Aristithes Doumouras
- Department of Surgery, Division of General Surgery, McMaster University, Hamilton, ON, Canada
- Department of Surgery, Division of General Surgery, St. Joseph's Healthcare, Hamilton, ON, Canada
| | - Cagla Eskicioglu
- Department of Surgery, Division of General Surgery, McMaster University, Hamilton, ON, Canada
- Department of Surgery, Division of General Surgery, St. Joseph's Healthcare, Hamilton, ON, Canada
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Liu GXH, Milne T, Xu W, Varghese C, Keane C, O'Grady G, Bissett IP, Wells CI. Risk prediction algorithms for prolonged postoperative ileus: A systematic review. Colorectal Dis 2024; 26:1101-1113. [PMID: 38698504 DOI: 10.1111/codi.17010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/12/2024] [Accepted: 03/12/2024] [Indexed: 05/05/2024]
Abstract
AIM Prolonged postoperative ileus (PPOI) is common and is associated with a significant healthcare burden. Previous studies have attempted to predict PPOI clinically using risk prediction algorithms. The aim of this work was to systematically review and compare risk prediction algorithms for PPOI following colorectal surgery. METHOD A systematic literature search was conducted using MEDLINE, Embase, Web of Science and CINAHL Plus. Studies that developed and/or validated a risk prediction algorithm for PPOI in adults following colorectal surgery were included. Data were collected on study design, population and operative characteristics, the definition of PPOI used and risk prediction algorithm design and performance. Quality appraisal was assessed using the PROBAST tool. RESULTS Eleven studies with 87 549 participants were included in our review. Most were retrospective, single-centre analyses (6/11, 55%) and rates of PPOI varied from 10% to 28%. The most commonly used variables were sex (8/11, 73%), age (6/11, 55%) and surgical approach (5/11, 45%). Area under the curve ranged from 0.68-0.78, and only three models were validated. However, there was significant variation in the definition of PPOI used. No study reported sensitivity, specificity or positive/negative predictive values. CONCLUSION Currently available risk prediction algorithms for PPOI appear to discriminate moderately well, although there is a lack of validation data. Future studies should aim to use a standardized definition of PPOI, comprehensively report model performance and validate their findings using internal and external methodologies.
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Affiliation(s)
- Gordon Xin Hua Liu
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Tony Milne
- Department of General Surgery, Auckland City Hospital, Te Whatu Ora Te Toka Tumai Auckland, Auckland, New Zealand
- Department of General Surgery, Middlemore Hospital, Te Whatu Ora Counties Manukau, Auckland, New Zealand
| | - William Xu
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Chris Varghese
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Celia Keane
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
- Department of General Surgery, Whangarei Hospital, Te Whatu Ora Te Tai Tokerau, Northland, New Zealand
| | - Greg O'Grady
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
- Department of General Surgery, Auckland City Hospital, Te Whatu Ora Te Toka Tumai Auckland, Auckland, New Zealand
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - Ian P Bissett
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
- Department of General Surgery, Auckland City Hospital, Te Whatu Ora Te Toka Tumai Auckland, Auckland, New Zealand
| | - Cameron I Wells
- Department of Surgery, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
- Department of General Surgery, Auckland City Hospital, Te Whatu Ora Te Toka Tumai Auckland, Auckland, New Zealand
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Zhou L, Lian H, Yin Y, Zheng YS, Han YX, Liu GQ, Wang ZY. New insights into muscularis macrophages in the gut: from their origin to therapeutic targeting. Immunol Res 2023; 71:785-799. [PMID: 37219708 DOI: 10.1007/s12026-023-09397-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/15/2023] [Indexed: 05/24/2023]
Abstract
Muscularis macrophages, as the most abundant immune cells in the intestinal muscularis externa, exhibit tissue protective phenotype in the steady state. Owing to tremendous advances in technology, we now know the fact that muscularis macrophages are a heterogeneous population of cells which could be divided into different functional subsets depending on their anatomic niches. There is emerging evidence showing that these subsets, through molecular interactions with their neighbours, take part in a wide range of physiological and pathophysiological processes in the gut. In this review, we summarize recent progress (particularly over the past 4 years) on distribution, morphology, origin and functions of muscularis macrophages and, where possible, the characteristics of specific subsets in response to the microenvironment they occupy, with particular emphasis on their role in muscular inflammation. Furthermore, we also integrate their role in inflammation-related gastrointestinal disorders, such as post-operative ileus and diabetic gastroparesis, in order to propose future therapeutic strategies.
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Affiliation(s)
- Li Zhou
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
- Xinxiang Key Laboratory of Molecular Neurology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Hui Lian
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
- Xinxiang Key Laboratory of Molecular Neurology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yue Yin
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Yuan-Sheng Zheng
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Yu-Xin Han
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Gao-Qi Liu
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Zhi-Yong Wang
- Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China.
- Xinxiang Key Laboratory of Molecular Neurology, Xinxiang Medical University, Xinxiang, 453003, China.
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Traeger L, Koullouros M, Bedrikovetski S, Kroon HM, Moore JW, Sammour T. Global cost of postoperative ileus following abdominal surgery: meta-analysis. BJS Open 2023; 7:zrad054. [PMID: 37352872 PMCID: PMC10289829 DOI: 10.1093/bjsopen/zrad054] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/02/2023] [Accepted: 04/09/2023] [Indexed: 06/25/2023] Open
Abstract
BACKGROUND Following abdominal surgery, postoperative ileus is a common complication significantly increasing patient morbidity and cost of hospital admission. This is the first systematic review aimed at determining the average global hospital cost per patient associated with postoperative ileus. METHODS A systematic search of electronic databases was performed from January 2000 to March 2023. Studies included compared patients undergoing abdominal surgery who developed postoperative ileus to those who did not, focusing on costing data. The primary outcome was the total cost of inpatient stay. Risk of bias was assessed using the Newcastle-Ottawa assessment tool. Summary meta-analysis was performed. RESULTS Of the 2071 studies identified, 88 papers were assessed for full eligibility. The systematic review included nine studies (2005-2022), investigating 1 860 889 patients undergoing general, colorectal, gynaecological and urological surgery. These studies showed significant variations in the definition of postoperative ileus. Six studies were eligible for meta-analysis showing an increase of €8233 (95 per cent c.i. (5176 to 11 290), P < 0.0001, I2 = 95.5 per cent) per patient with postoperative ileus resulting in a 66.3 per cent increase in total hospital costs (95 per cent c.i. (34.8 to 97.9), P < 0.0001, I2 = 98.4 per cent). However, there was significant bias between studies. Five colorectal-surgery-specific studies showed an increase of €7242 (95 per cent c.i. (4502 to 9983), P < 0.0001, I2 = 86.0 per cent) per patient with postoperative ileus resulting in a 57.3 per cent increase in total hospital costs (95 per cent c.i. (36.3 to 78.3), P < 0.0001, I2 = 85.7 per cent). CONCLUSION The global financial burden of postoperative ileus following abdominal surgery is significant. While further multicentre data using a uniform postoperative ileus definition would be useful, reducing the incidence and impact of postoperative ileus are a priority to mitigate healthcare-related costs, and improve patient outcomes.
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Affiliation(s)
- Luke Traeger
- Colorectal Unit, Department of Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Michalis Koullouros
- Colorectal Unit, Department of Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Sergei Bedrikovetski
- Colorectal Unit, Department of Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Hidde M Kroon
- Colorectal Unit, Department of Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - James W Moore
- Colorectal Unit, Department of Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Tarik Sammour
- Colorectal Unit, Department of Surgery, Royal Adelaide Hospital, Adelaide, South Australia, Australia
- Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
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