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The effectiveness and safety of the optimized 2 L polyethylene glycol protocol based on Bristol score and the standard 4 L polyethylene glycol protocol in colonoscopic bowel preparation for constipation patients: a single center, randomized, single blind, non inferiority study

The effectiveness and safety of the optimized 2 L polyethylene glycol protocol based on Bristol score and the standard 4 L polyethylene glycol protocol in colonoscopic bowel preparation for constipation patients: a single center, randomized, single blind, non inferiority study

Status
Active, not recruiting
Phases
Early Phase 1
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200065462
Enrollment
Unknown
Registered
2022-11-04
Start date
2022-10-30
Completion date
Unknown
Last updated
2023-05-15

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

Conditions

Constipation

Interventions

Trail group:optimized 2 L polyethylene glycol protocol based on Bristol score
control group:the standard 4 L polyethylene glycol protocol

Sponsors

Gaoxin Hospital of the First Affiliated Hospital of Nanchang University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18-70 years; 2. Patients with mild to moderate chronic constipation and BSFS 1-3.

Exclusion criteria

Exclusion criteria: 1. History of surgical resection of colon; 2. Suspected colon stenosis or perforation; 3. Incomplete or complete intestinal obstruction; 4. Use prokinetic agents or laxatives within 7 days; 5. Toxic colitis or megacolon; 6. Pregnant and lactating women; 7. Hemodynamic instability; 8. Refractory constipation; 9. BMI > 25 kg/m2; 10. Diabetes; 11. Parkinson; 12. History of stroke or spinal cord injury; 13. Use of tricyclic antidepressants or anesthetics; 14. Colonic polyps have been identified; 15. Intolerable bowel preparation before colonoscopy; 16. Inpatient; 17. History of Inadequate preparation bowel; 18. Use of opioids; 19. Unable to sign the informed consent form.

Design outcomes

Primary

MeasureTime frame
Qualification rate of bowel preparation;—

Countries

China

Contacts

Public ContactHao Zeng

Gaoxin Hospital of the First Affiliated Hospital of Nanchang University

zhenhao388@sohu.com+86 13870627755

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026