Detachable String Magnetically Controlled Capsule Endoscopy for Detecting High-risk Varices in Compensated Cirrhosis

NCT ID: NCT03749954

Last Updated: 2020-11-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

105 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-11-09

Study Completion Date

2022-11-08

Brief Summary

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Gastroesophageal varices is a serious complication of compensated advanced chronic liver disease (cACLD). Primary prophylaxis to reduce the risk of variceal haemorrhage is recommended if high-risk varices (HRV) are detected. We performed this study to compare the accuracy, patients' satisfaction and safety of detection of HRV by detachable string magnetically controlled capsule endoscopy (DS-MCCE) with esophagogastroduodenoscopy (EGD) as the standard.

Detailed Description

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The presence of gastroesophageal varices (GEV) is a common and serious complication of compensated advanced chronic liver disease (cACLD).1-3 GEV hemorrhage is associated with a six week mortality rate of between 15% and 25%.2,3 In order to prevent variceal hemorrhage, screening and surveillance aims to detect high-risk varices (HRV) and determine the need for primary preventative therapy.2,3 Esophagogastroduodenoscopy (EGD) is therefore an important part of the diagnostic work-up in patients with cACLD, serving as the gold standard to diagnose HRV.2,3 However, EGD is invasive and poorly tolerated, with many patients needing intravenous sedatives or general anesthesia. Although EGD with sedation relieves patients' anxiety and discomfort and reduces the potential for physical injury during the procedure, it incurs additional risks of cardiopulmonary adverse events.4 Consequently, patients may decline a screening procedure if they are stable and asymptomatic.

Non-invasive methods for detection of cACLD are being explored.5-13 Although preliminary research is encouraging, these techniques predict the presence, rather than confirm or assess the size, of GEV. By contrast, capsule endoscopy is a non-invasive alternative which also allows direct visualization of GEV.14 A number of well-conducted trials15-19 suggest that EGD and capsule endoscopy may be equivalent in terms of accuracy in the identification and grading of varices. However, concerns remain that the quality of examination may be adversely affected by the uncontrolled and sometimes rapid transit of the capsule through the esophagus.20 String capsule endoscopy was introduced to address this concern by providing control of capsule movement as well as real-time visualization.21 However, this technique is limited by the inability to detach the string from the capsule. Thus, observation of the fundus, one of the predilection sites of varices, is impossible and retrieval of the capsule from the esophagus causes discomfort.

Magnetically controlled capsule endoscopy (MCCE), a novel modality, was developed and approved by the China Food and Drug Administration in 2013.22 Our previous studies initially demonstrated that MCCE was comparable in accuracy to EGD for gastric examination.22,23 Furthermore, it has several strengths including non-invasiveness, no sedation requirement, and easy operation.22,23 We have since combined an innovative detachable string system with the MCCE (detachable string magnetically controlled capsule endoscopy (DS-MCCE)) and carried out a pilot study showing that DS-MCCE was safe and feasible both in healthy volunteers and patients with suspected esophageal disease.24 Moreover, successful detachment of the capsule from the string avoids the discomfort of retrieving the entire capsule from the mouth and allows subsequent investigation of the gastric cardia and fundus. To our knowledge, the diagnostic accuracy of HRV, comfort and safety of DS-MCCE in patients with cACLD have not been explored in a large-scale trial. This prospective, multicenter study aimed to assess the accuracy, patient's satisfaction, and safety of DS-MCCE for detecting HRV in well-characterized patients with cACLD.

Conditions

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Compensated Cirrhosis Gastroesophageal Varices Bleeding

Keywords

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Magnetically controlled capsule endoscopy Gastroesophageal varices bleeding Varices needing treatment

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Overall eligible participants

Eligible participants will receive standard esophagogastroduodenoscopy and magnetically controlled capsule endoscopy (Ankon Medical Technologies Co. Ltd.).

Detachable string magnetically controlled capsule endoscopy

Intervention Type DIAGNOSTIC_TEST

Esophagogastroduodenoscopy is performed 2 hours after the magnetically controlled capsule endoscopy (Ankon Medical Technologies Co. Ltd.).

Interventions

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Detachable string magnetically controlled capsule endoscopy

Esophagogastroduodenoscopy is performed 2 hours after the magnetically controlled capsule endoscopy (Ankon Medical Technologies Co. Ltd.).

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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Esophagogastroduodenoscopy

Eligibility Criteria

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Inclusion Criteria

* age 18-75 years;
* confirmed cirrhosis based on liver biopsy or clinical findings;
* compensated cirrhosis;
* scheduled to undergo esophagogastroduodenoscopy;
* estimated survival time\> 24 months, and model for end-stage liver disease (MELD) score\< 19;
* with written informed consent.

Exclusion Criteria

* contradictions for capsule endoscopy;
* contradictions for standard magnetic resonance imaging examination such as the presence of surgical metallic devices;
* pregnancy or unknown pregnancy status.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Beijing 302 Hospital

OTHER

Sponsor Role collaborator

Sir Run Run Shaw Hospital

OTHER

Sponsor Role collaborator

Zhujiang Hospital

OTHER

Sponsor Role collaborator

Shandong Provincial Hospital

OTHER_GOV

Sponsor Role collaborator

Shanghai Tongji Hospital, Tongji University School of Medicine

OTHER

Sponsor Role collaborator

Third Affiliated Hospital, Sun Yat-Sen University

OTHER

Sponsor Role collaborator

Guangdong Second Provincial General Hospital

OTHER

Sponsor Role collaborator

The Fifth Affiliated Hospital of Zunyi Medical College

OTHER

Sponsor Role collaborator

LanZhou University

OTHER

Sponsor Role collaborator

Sheffield Teaching Hospitals NHS Foundation Trust

OTHER

Sponsor Role collaborator

Changhai Hospital

OTHER

Sponsor Role collaborator

The Second Affiliated Hospital of Baotou Medical College

OTHER

Sponsor Role collaborator

Nanfang Hospital, Southern Medical University

OTHER

Sponsor Role lead

Responsible Party

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Xiaolong Qi

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Xiaolong Qi, M.D.

Role: PRINCIPAL_INVESTIGATOR

LanZhou University

Locations

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The Fifth Medical Center of PLA General Hospital

Beijing, Beijing Municipality, China

Site Status

The First Hospital of Lanzhou University

Lanzhou, Gansu, China

Site Status

Guangdong Second Provincial General Hospital

Guangzhou, Guangdong, China

Site Status

Nanfang Hospital, Southern Medical University

Guangzhou, Guangdong, China

Site Status

Zhujiang Hospital, Southern Medical University

Guangzhou, Guangdong, China

Site Status

The Fifth Affiliated Hospital of Zunyi Medical University

Zhuhai, Guangdong, China

Site Status

Shandong Provincial Hospital affiliated to Shandong University

Jinan, Shandong, China

Site Status

Changhai Hospital

Shanghai, Shanghai Municipality, China

Site Status

Shanghai Tongji Hospital, Tongji University School of Medicine

Shanghai, Shanghai Municipality, China

Site Status

Sir Run Run Shaw Hospital

Hangzhou, Zhejiang, China

Site Status

The Second Affiliated Hospital of Baotou Medical College

Baotou, , China

Site Status

Third Affiliated Hospital of Sun Yat-sen University

Guangzhou, , China

Site Status

Sheffield Teaching Hospitals NHS Trust

Sheffield, , United Kingdom

Site Status

Countries

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China United Kingdom

References

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Qi X, Berzigotti A, Cardenas A, Sarin SK. Emerging non-invasive approaches for diagnosis and monitoring of portal hypertension. Lancet Gastroenterol Hepatol. 2018 Oct;3(10):708-719. doi: 10.1016/S2468-1253(18)30232-2.

Reference Type BACKGROUND
PMID: 30215362 (View on PubMed)

Liu F, Ning Z, Liu Y, Liu D, Tian J, Luo H, An W, Huang Y, Zou J, Liu C, Liu C, Wang L, Liu Z, Qi R, Zuo C, Zhang Q, Wang J, Zhao D, Duan Y, Peng B, Qi X, Zhang Y, Yang Y, Hou J, Dong J, Li Z, Ding H, Zhang Y, Qi X. Development and validation of a radiomics signature for clinically significant portal hypertension in cirrhosis (CHESS1701): a prospective multicenter study. EBioMedicine. 2018 Oct;36:151-158. doi: 10.1016/j.ebiom.2018.09.023. Epub 2018 Sep 27.

Reference Type BACKGROUND
PMID: 30268833 (View on PubMed)

Qi X, Li Z, Huang J, Zhu Y, Liu H, Zhou F, Liu C, Xiao C, Dong J, Zhao Y, Xu M, Xing S, Xu W, Yang C. Virtual portal pressure gradient from anatomic CT angiography. Gut. 2015 Jun;64(6):1004-5. doi: 10.1136/gutjnl-2014-308543. Epub 2014 Nov 14. No abstract available.

Reference Type BACKGROUND
PMID: 25398771 (View on PubMed)

Wang FS, Fan JG, Zhang Z, Gao B, Wang HY. The global burden of liver disease: the major impact of China. Hepatology. 2014 Dec;60(6):2099-108. doi: 10.1002/hep.27406. Epub 2014 Oct 29.

Reference Type BACKGROUND
PMID: 25164003 (View on PubMed)

Zou WB, Hou XH, Xin L, Liu J, Bo LM, Yu GY, Liao Z, Li ZS. Magnetic-controlled capsule endoscopy vs. gastroscopy for gastric diseases: a two-center self-controlled comparative trial. Endoscopy. 2015 Jun;47(6):525-8. doi: 10.1055/s-0034-1391123. Epub 2015 Jan 15.

Reference Type BACKGROUND
PMID: 25590177 (View on PubMed)

Liao Z, Hou X, Lin-Hu EQ, Sheng JQ, Ge ZZ, Jiang B, Hou XH, Liu JY, Li Z, Huang QY, Zhao XJ, Li N, Gao YJ, Zhang Y, Zhou JQ, Wang XY, Liu J, Xie XP, Yang CM, Liu HL, Sun XT, Zou WB, Li ZS. Accuracy of Magnetically Controlled Capsule Endoscopy, Compared With Conventional Gastroscopy, in Detection of Gastric Diseases. Clin Gastroenterol Hepatol. 2016 Sep;14(9):1266-1273.e1. doi: 10.1016/j.cgh.2016.05.013. Epub 2016 May 20.

Reference Type BACKGROUND
PMID: 27211503 (View on PubMed)

de Franchis R; Baveno VI Faculty. Expanding consensus in portal hypertension: Report of the Baveno VI Consensus Workshop: Stratifying risk and individualizing care for portal hypertension. J Hepatol. 2015 Sep;63(3):743-52. doi: 10.1016/j.jhep.2015.05.022. Epub 2015 Jun 3. No abstract available.

Reference Type BACKGROUND
PMID: 26047908 (View on PubMed)

Berzigotti A, Seijo S, Arena U, Abraldes JG, Vizzutti F, Garcia-Pagan JC, Pinzani M, Bosch J. Elastography, spleen size, and platelet count identify portal hypertension in patients with compensated cirrhosis. Gastroenterology. 2013 Jan;144(1):102-111.e1. doi: 10.1053/j.gastro.2012.10.001. Epub 2012 Oct 8.

Reference Type BACKGROUND
PMID: 23058320 (View on PubMed)

Bhardwaj A, Kedarisetty CK, Vashishtha C, Bhadoria AS, Jindal A, Kumar G, Choudhary A, Shasthry SM, Maiwall R, Kumar M, Bhatia V, Sarin SK. Carvedilol delays the progression of small oesophageal varices in patients with cirrhosis: a randomised placebo-controlled trial. Gut. 2017 Oct;66(10):1838-1843. doi: 10.1136/gutjnl-2016-311735. Epub 2016 Jun 13.

Reference Type BACKGROUND
PMID: 27298379 (View on PubMed)

Rey JF, Ogata H, Hosoe N, Ohtsuka K, Ogata N, Ikeda K, Aihara H, Pangtay I, Hibi T, Kudo SE, Tajiri H. Blinded nonrandomized comparative study of gastric examination with a magnetically guided capsule endoscope and standard videoendoscope. Gastrointest Endosc. 2012 Feb;75(2):373-81. doi: 10.1016/j.gie.2011.09.030. Epub 2011 Dec 9.

Reference Type BACKGROUND
PMID: 22154417 (View on PubMed)

Wang S, Huang Y, Hu W, Mao H, McAlindon ME, Liu Y, Yang L, Zhang C, Xu M, He C, Dang T, Wu B, Ji D, Zhang L, Mao X, Zhang L, Liu C, Xu D, Li Y, Li G, Han J, Lv F, Liang X, Jin S, Zhang S, Tai FWD, Xu Q, Yang C, Wang G, Wang L, Li B, Yang H, Xie P, Deng L, Ren L, Chang Z, Wang X, Wang S, Gao X, Li J, Zhu L, Wang F, Zhang L, Zhang G, Jiang X, Pan J, Meng W, Li X, Hou J, Dray X, Liao Z, Qi X. Detachable string magnetically controlled capsule endoscopy for detecting high-risk varices in compensated advanced chronic liver disease (CHESS1801): A prospective multicenter study. Lancet Reg Health West Pac. 2020 Dec 11;6:100072. doi: 10.1016/j.lanwpc.2020.100072. eCollection 2021 Jan.

Reference Type DERIVED
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Huang Y, Huang F, Yang L, Hu W, Liu Y, Lin Z, Meng X, Zeng M, He C, Xu Q, Xie G, Liu C, Liang M, Li X, Kang N, Xu D, Wang J, Zhang L, Mao X, Yang C, Xu M, Qi X, Mao H. Development and validation of a radiomics signature as a non-invasive complementary predictor of gastroesophageal varices and high-risk varices in compensated advanced chronic liver disease: A multicenter study. J Gastroenterol Hepatol. 2021 Jun;36(6):1562-1570. doi: 10.1111/jgh.15306. Epub 2020 Nov 18.

Reference Type DERIVED
PMID: 33074566 (View on PubMed)

Other Identifiers

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CHESS1801

Identifier Type: -

Identifier Source: org_study_id