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Back or side? a simple choice that could speed up colonoscopies

NCT ID NCT07772648

Knowledge-focused Sponsor: Sisli Hamidiye Etfal Training and Research Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This trial asks whether starting a colonoscopy with the patient lying on their back (supine) versus on their left side (left lateral) changes how efficiently the procedure goes. About 158 adults scheduled for a screening colonoscopy will be randomly assigned to one of the two starting positions. Researchers will measure how long it takes to reach the end of the large intestine (cecum), as well as comfort for both the patient and the doctor, overall procedure time, and how many polyps or adenomas are found. The goal is to see if a simple change in starting position could make colonoscopies faster, more comfortable, and more effective.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Starting position for colonoscopy (supine vs. left lateral)
What this could lead to
If one starting position proves faster and more comfortable, it could become the standard approach for routine colonoscopies, improving efficiency and patient experience.
What could go wrong
This is a single-center trial with a modest number of participants, so results may not apply broadly. The outcome depends on the skill and preference of the endoscopist, and any benefit might be small or inconsistent.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

158 people

The number who actually took part.

Started

Mar 2025

Finished

Dec 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Adults aged 18 years or older. Scheduled to undergo screening colonoscopy. No history of colorectal cancer. No history of colorectal surgery. Exclusion Criteria: Failure to achieve cecal intubation. Inflammatory bowel disease. Inadequate bowel preparation, defined as a Boston Bowel Preparation Scale (BBPS) score \<2.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Colonoscopy (procedure)

Contacts and locations

Locations

  • Şişli Hamidiye Etfal Training and Research Hospital

    Istanbul, Istanbul, 34371, Turkey (Türkiye)

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