Adults 45 to 80, any sex, with Right Colon Adenoma Miss Rate or Right Colon Hyperplastic Polyp Miss Rate. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Percentage of Adenomas and Hyperplastic Polyps Missed During Initial Right Colon ExaminationPrimary· One day
Lesions detected on the tandem (second) right colon examination are used for the calculation of adenoma and hyperplastic polyp miss rate. Right colon adenoma miss rate (AMR) and right colon hyperplastic polyp miss rate (HPMR) are calculated as the number of adenomas and hyperplastic polyps detected during the second right colon examination divided by the total number of adenoma and hyperplastic polyps detected during both the first and second right colon examinations.
Group
Value
95% CI
Water Exchange (WE) Colonoscopy
18.0
13.9 – 23.2
CO2 Insufflation Colonoscopy
36.7
30.0 – 44.8
Sponsor's own description
This will be a prospective randomized controlled trial comparing CO2 insufflation and WE in terms of right colon combined adenoma miss rate (AMR) and hyperplastic polyp miss rate (HPMR) by tandem inspection. It will be a single-site study conducted in Taiwan.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
NCT03444090 — Impacts of Inspection During Instrument Insertion on Colonoscopy Quality
· NA
· completed
Other Evergreen General Hospital, Taiwan trials
Trials by the same sponsor.
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· NA
· recruiting
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· NA
· recruiting
NCT06173258 — Water Exchange Colonoscopy With Artificial Intelligence-assisted Detection
· NA
· completed
NCT05125939 — Can Overall Adenoma Detection Rate Replace Screening Adenoma Detection Rate ? Multicenter Study
· recruiting
NCT04769739 — Dose the Saline Reduce the Mucus Production When Water Exchange Colonoscopy is Used?
· NA
· completed
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Evergreen General Hospital, Taiwan
Last refreshed: 17 December 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03845933.