Skip to content

Efficacy of a Two-Day Split-Dose Bowel Preparation for Colonoscopy: A Single-Center Prospective Study

A Single-Center Prospective Observational Study to Evaluate the Efficacy of a Two-Day Split-Dose Regimen for Bowel Preparation before Colonoscopy - 2D-Prep Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-jRCT1051250142
Enrollment
100
Registered
2025-10-27
Start date
2025-10-27
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diseases requiring colonoscopy colonoscopy

Interventions

None listed

Sponsors

Kanesaka Takashi
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1.Patients who undergo total colonoscopy at our institution. 2.Patients who receive a two-day split-dose regimen of Salprep oral solution as bowel preparation for colonoscopy. 3.Patients who have received sufficient explanation of the study and have provided written informed consent. 4.Patients aged 18 years or older. Individuals who meet all of the above criteria (1-4) will be considered eligible for inclusion.

Exclusion criteria

Exclusion criteria: 1.Patients with a history of gastrointestinal surgery. 2.Patients with suspected gastrointestinal obstruction or stenosis. 3.Patients with a history or suspicion of inflammatory bowel disease. 4.Patients with suspected intestinal perforation, toxic megacolon, or gastric emptying disorder. 5.Patients with severe renal dysfunction (creatinine clearance <30 mL/min). 6.Patients with a history of hypersensitivity to any component of the study medication. 7.Patients deemed inappropriate for inclusion by the attending physician. Individuals who meet any of the above criteria (1-7) will be considered ineligible for participation.

Design outcomes

Primary

MeasureTime frame
1.Quality of bowel preparation before colonoscopy 2.Quality of intraluminal bowel preparation

Secondary

MeasureTime frame
1.Acceptability of the two-day split-dose bowel preparation regimen 2.Adverse events

Contacts

Public ContactMuneshin Morita

Osaka International Cancer Institute

muneshin.m7@gmail.com+81-6-6945-1181

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026