Completed NA INTERVENTIONAL 4-arm NCT02635217

Same Day Bidirectional Endoscopies - Does the Sequence of Procedures or Choice of Insufflator Matter?

Sponsor: Queen's University

Interventions Carbon dioxide insufflation Colonoscopy before EGD (Esophagogastroduodenoscopy) EGD (Esophagogastroduodenoscopy) before Colonoscopy room air insufflation

Updated 7 times since 2017 Last updated: May 8, 2018 Started: Jan 31, 2016 Primary completion: Nov 30, 2017 Completion: Dec 31, 2017

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

Listed as NCT02635217, this NA trial focuses on Anemia and Colon Polyps and remains completed. Sponsored by Queen's University, it has been updated 7 times since 2016, reflecting limited change activity. This study adds to the evidence base for this therapeutic area through structured, versioned documentation.

Status Flow

Change History

7 versions recorded

Jun 2025 — Present [monthly]

Completed NA
Apr 2025 — Jun 2025 [monthly]

Completed NA
Sep 2024 — Apr 2025 [monthly]

Completed NA
Jul 2024 — Sep 2024 [monthly]

Completed NA
Jan 2021 — Jul 2024 [monthly]

Completed NA

▶ Show 2 earlier versions

Jun 2018 — Jan 2021 [monthly]

Completed NA

Status: Recruiting → Completed
Jan 2017 — Jun 2018 [monthly]

Recruiting NA

First recorded

Jan 2016

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Queen's University

Data source: Queen's University

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Kingston, Canada