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1.2L polyethylene glycol + ascorbic acid versus 2.0L polyethylene glycol-electrolyte acid for outpatient bowel preparation.

1.2L polyethylene glycol + ascorbic acid versus 2.0L polyethylene glycol-electrolyte acid for outpatient bowel preparation. - 1.2L polyethylene glycol + ascorbic acid versus 2.0L polyethylene glycol-electrolyte acid for outpatient bowel preparation.

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000020904
Enrollment
300
Registered
2016-02-08
Start date
2014-10-31
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

Colon diseases (Patients undergoing routine total colonoscopy)

Interventions

On the day before colonoscopy: 48mg of sennoside once at bedtime. On the day of colonoscopy: 1.2L of polyethylene glycol + ascorbic acid (Moviprep
Ajinomoto Ltd, Tokyo, Japan
composed of 200g of macrogol 4000, electrolytes and 9.400g ascorbic acid) diluted into 2.0L of plain water and at least 0.6L of additional clear fluid. On the day before colonoscopy: 48mg of sennoside
composed of macrogol 4000 and electrolytes) diluted into 2.0L of plain water.

Sponsors

Takamatsu Red Cross Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Patients with an appropriate indication to colonoscopy.

Exclusion criteria

Exclusion criteria: 1. Patients who have known or suspected bowel obstruction or ileus. 2. Patients who have known or suspected perforation. 3. Patients who have significant gastroparesis or gastric outlet obstruction. 4. Patients with severe chronic renal failure (creatinine clearance <30 mL/minute) and severe congestive heart failure (New York Heart Association [NYHA] class III or IV). 5. Patients with sustained tachyarrhythmia. 6. Patients with uncontrolled hypertension (systolic blood pressure >170 mm Hg, diastolic blood pressure >100mmHg). 7. Patients with toxic colitis or megacolon. 8. Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frame
Degree of colon cleansing assessed by Boston Bowel Preparation Scale (BBPS) and an original scoring system.

Secondary

MeasureTime frame
Volume of fluid intake, required time to bowel preparation, result of questionnaire on acceptability and evaluation for safety.

Countries

Japan

Contacts

Public ContactHiroyuki Tamaki

Takamatsu Redcross Hospital Gastroenterology

h-tama@gc4.so-net.ne.jp087-837-7101

Outcome results

None listed

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