A Study Comparing the Castor Oil Plus PEG (Polyethylene Glycol) with Regular Dose PEG for Colon Cleansing in Preparation for Colonoscopy

A Randomized, Assessor-Blinded, Single-Center Study Investigating the Efficacy, Safety, and Tolerability of Low Dose PEG (Polyethylene Glycol), Castor Oil plus Asc (Ascorbic acid) versus Low Dose PEG Plus Castor Oil Versus Regular Dose PEG for Colon Cleansing in Preparation for Colonoscopy

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR-IIR-17012418

Enrollment

Unknown

Registered

2017-08-19

Start date

2017-10-10

Completion date

Unknown

Last updated

2017-08-21

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

Conditions

Bowel Preparation

Interventions

Control Group:3L PEG

Study Group 1:2L PEG plus 30ML CaO

Study Group 2:1L PEG plus 30mL CaO plus 5g Asc

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Inclusion criteria

Inclusion criteria: (1) outpatient colonoscopy (patients of either sex, aged from 18-75 years); (2) not participating in other clinical study regarding bowel preparation; and (3) with normal cognitive ability.

Exclusion criteria

Exclusion criteria: (1) pregnancy; (2) abdominal surgery (such as gynecologic surgery, appendix surgery, and laparoscopic surgery); (3) never system diseases; (4) contraindication for colonoscopy; (5) allergy for ingredient of PEG, CaO and Asc.

Design outcomes

Primary

Measure	Time frame
Bowel preparation efficacy;	—

Secondary

Measure	Time frame
The first defecation time;Total number of defecation;Intubation time;Detection rate of ployp;Safety;Tolerability;	—

Countries

China

Contacts

Public ContactWei-Qing CHEN

Chongqing Cancer Institute & Hospital & Cancer Center

chenwq20140809@163.com+86 023 65313859

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 21, 2026