NCT06496958

Brief Summary

The goal of this trial is to evaluate whether water exchange colonoscopy and CO2-insufflation colonoscopy with an abdominal compression device (Maxbelt me3 type, Nippon Sigmax Co., Tokyo, Japan) can achieve a significantly lower proportion of patients requiring manual abdominal pressure during colonoscopic insertion compared with CO2 insufflation alone.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
400

participants targeted

Target at P75+ for not_applicable

Timeline
5mo left

Started Sep 2024

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress81%
Sep 2024Sep 2026

First Submitted

Initial submission to the registry

June 20, 2024

Completed
21 days until next milestone

First Posted

Study publicly available on registry

July 11, 2024

Completed
2 months until next milestone

Study Start

First participant enrolled

September 2, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2026

Last Updated

November 5, 2024

Status Verified

November 1, 2024

Enrollment Period

2 years

First QC Date

June 20, 2024

Last Update Submit

November 3, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Frequency of manual pressure

    The proportion of patients who need at least one application of manual abdominal pressure during colonoscopic insertion.

    One day

Secondary Outcomes (7)

  • Frequency of repositioning

    One day

  • Ergonomic pain of after colonoscopy

    One day

  • Colonoscopy difficulty

    One day

  • Post-colonoscopy abdominal pain

    One day

  • Cecal intubation time

    One day

  • +2 more secondary outcomes

Study Arms (3)

CO2 insufflation colonoscopy with an abdominal compression device

EXPERIMENTAL

Colonoscopic insertion will be performed with CO2 insufflation with assistance by an abdominal compression device.

Device: CO2 insufflation with an abdominal compression device

CO2 insufflation colonoscopy with a sham abdominal compression device

SHAM COMPARATOR

Colonoscopic insertion will be performed with CO2 insufflation in standard method. A sham abdominal compression device will be used as a sham comparator.

Device: CO2 insufflation with a sham abdominal compression device

Water exchange colonoscopy

ACTIVE COMPARATOR

Colonoscopic insertion will be performed with water exchange method.

Device: Water exchange colonoscopy

Interventions

For participants randomized to the intervention group, the back brace support belt, Maxbelt (me3 type, Nippon Sigmax Co., Tokyo, Japan), will be applied around the circumference of the lower abdomen. Five sizes of Maxbelt will be employed in this study. According to the manufacturer, the ultra small-size (XS-size) belt will be used in those patients with an abdominal circumference of 55 cm-65 cm, the small-size (S-size) belt will be used in those patients with an abdominal circumference of 65 cm-75 cm, the medium-size (M-size) belt will be used for a circumference of 75 cm-85 cm, the large-size (L-size) belt will be used for a circumference of 85 cm-95 cm, and the ultra large-size (XL-size) will be used for a circumference of 95 cm-105 cm. Once applied, participants will be asked to assess and confirm that the belt is fastened tightly but not uncomfortably.

CO2 insufflation colonoscopy with an abdominal compression device

The study coordinator will fit the sham device in a private bay alone with the patient. For participants randomized to the sham control group, a larger-sized Maxbelt with loose fitting will be used as a sham device. The L-size Maxbelt will be used in those patients with an abdominal circumference of 55 cm-71 cm, the XL-size Maxbelt will be used in in those patients with an abdominal circumference of 72 cm-88 cm, and the 2 XL-size Maxbelt will be used in in those patients with abdominal circumference 89 cm-105 cm.

CO2 insufflation colonoscopy with a sham abdominal compression device

In those patients assigned to the water exchange (WE) group, the air pump will be turned off during the insertion phase of colonoscopy, while the colon is irrigated with warm-to-touch distilled water or half normal saline using a flushing pump. The WE approach involves the simultaneous infusion of water to facilitate luminal expansion and suction of unclean water during insertion. Any encountered air pockets will be aspirated to ensure optimal WE maneuvers in salvage cleaning.

Water exchange colonoscopy

Eligibility Criteria

Age45 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients aged 45-80 years having an average risk for colorectal cancer who plan to undergo sedated outpatient colonoscopy for screening, surveillance, and those who have received a positive fecal immunochemical test result

You may not qualify if:

  • Patients with hereditary colorectal cancer syndrome, including familial adenomatous polyposis and hereditary nonpolyposis colorectal cancer (Lynch syndrome)
  • Patients with serrated polyposis syndrome
  • Patients with known or suspected inflammatory bowel disease
  • Patients with a history of colorectal cancer or other intra-abdominal malignancy
  • Patients with a history of colorectal resection
  • Patients with a history of abdominal aortic aneurysm, cirrhosis, ascites, or other severe comorbid illnesses
  • Patients with recent wounds or skin rash on the anterior abdominal wall and back
  • Patients with known ventral hernia
  • Patients with unsedated procedure
  • Patients with planned bidirectional endoscopy
  • Patients with body mass index \>35 kg/m2
  • Patients with waist circumference \<55 cm or \>105 cm
  • Patients with known or suspected gastroparesis
  • Patients with planned therapeutic procedures (e.g., hemostasis, removal of a large polyp)
  • Patients with mental retardation
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

E-Da Dachang Hospital

Kaohsiung City, 807, Taiwan

RECRUITING

Evergreen General Hospital

Taoyuan District, 320, Taiwan

RECRUITING

Related Publications (6)

  • Crockett SD, Cirri HO, Kelapure R, Galanko JA, Martin CF, Dellon ES. Use of an Abdominal Compression Device in Colonoscopy: A Randomized, Sham-Controlled Trial. Clin Gastroenterol Hepatol. 2016 Jun;14(6):850-857.e3. doi: 10.1016/j.cgh.2015.12.039. Epub 2016 Jan 6.

    PMID: 26767313BACKGROUND
  • Toyoshima O, Nishizawa T, Sakitani K, Yamakawa T, Yoshida S, Fukagawa K, Hata K, Ishihara S, Suzuki H. Colonoscopy using back brace support belt: A randomized, prospective trial. JGH Open. 2019 Nov 7;4(3):441-445. doi: 10.1002/jgh3.12276. eCollection 2020 Jun.

    PMID: 32514451BACKGROUND
  • Costello B, James T, Hall C, Shergill A, Schlossberg N. Does Manual Abdominal Pressure During Colonoscopy Put Endoscopy Staff and Patients at Risk? Experiences of Endoscopy Nurses and Technicians. Gastroenterol Nurs. 2023 Sep-Oct 01;46(5):386-392. doi: 10.1097/SGA.0000000000000756. Epub 2023 Jun 8.

    PMID: 37289853BACKGROUND
  • Crockett S, Dellon ES, Biggers L, Ernst DA. Use of Patient Abdominal Compression Device Reduces Staff Musculoskeletal Pain Associated With Supporting Colonoscopy: Results From a Randomized Controlled Trial. Gastroenterol Nurs. 2021 Mar-Apr 01;44(2):136-145. doi: 10.1097/SGA.0000000000000550.

    PMID: 33795622BACKGROUND
  • Cadoni S, Falt P, Gallittu P, Liggi M, Mura D, Smajstrla V, Erriu M, Leung FW. Water Exchange Is the Least Painful Colonoscope Insertion Technique and Increases Completion of Unsedated Colonoscopy. Clin Gastroenterol Hepatol. 2015 Nov;13(11):1972-80.e1-3. doi: 10.1016/j.cgh.2015.04.178. Epub 2015 May 5.

    PMID: 25956838BACKGROUND
  • Hsieh YH, Tseng CW, Hu CT, Koo M, Leung FW. Prospective multicenter randomized controlled trial comparing adenoma detection rate in colonoscopy using water exchange, water immersion, and air insufflation. Gastrointest Endosc. 2017 Jul;86(1):192-201. doi: 10.1016/j.gie.2016.12.005. Epub 2016 Dec 15.

    PMID: 27988288BACKGROUND

MeSH Terms

Conditions

Colonic Polyps

Condition Hierarchy (Ancestors)

Intestinal PolypsPolypsPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Officials

  • Chi-Liang Cheng

    Evergreen General Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Chi-Liang Cheng, MD

CONTACT

Jen-Hao Yeh, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 20, 2024

First Posted

July 11, 2024

Study Start

September 2, 2024

Primary Completion (Estimated)

August 31, 2026

Study Completion (Estimated)

September 30, 2026

Last Updated

November 5, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations