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Study tests whether lying on your left side makes colonoscopy faster and safer

NCT ID NCT06664762

Knowledge-focused Sponsor: Hospital Civil de Guadalajara 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This completed study looked at 144 adults having a colonoscopy for colorectal cancer screening. Researchers randomly assigned participants to lie either on their left side or on their back during the procedure to see which position allowed the doctor to reach the end of the colon faster and detect more polyps. The goal is to make colonoscopy more efficient and comfortable without added risk or cost.

What this could mean

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

What this could lead to
If one position proves faster or safer, it could become the standard for colonoscopy, improving patient comfort and screening efficiency.
What could go wrong
This is a small, completed study with no phase designation, so results may not apply broadly. The outcome is about procedure optimization, not a new treatment.

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

144 people

The number who actually took part.

Started

Aug 2024

Finished

Aug 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 to 79 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Patients with indication for colonoscopy in our coloproctology service * Both women and men * Patients within an age range of 18-79 years * Patients who agree having a colonoscopy and who sign the informed consent to participate in the protocol Exclusion Criteria: * Patients under 18 or over 80 years old * All patients that won´t like to participate in the protocol or won´t sign the informed consent * Pregnant women * Patients with a medical record of colonic resection, ostomy status, severe cardiopulmonary and renal diseases, major psychiatric disorders, therapeutic colonoscopy or any contraindications for colonoscopy * Non compliance with the colonic preparation regimen * Active bleeding during the procedure * Patients with a known diagnosis of colorectal cancer * Patients with class III obesity Elimination criteria: * Boston score \<6 for colonic preparation * Patients with a colonic lesion that makes it difficult to pass the colonoscope * Patients with insufficient sedation that requires the procedure to stop temporarily * Bowel perforation during colonoscopy * Inability to reach the cecum despite loop reduction maneuvers * Indication to suspend the study given by the anesthesiologist

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As listed by the trial registrant

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

Colorectal cancer screening

Contacts and locations

Locations

  • Antigüo Hospital Civil de Guadalajara "Fray Antonio Alcalde"

    Guadalajara, Jalisco, 44200, Mexico

  • IMSS Hospital General Regional 220 "José Vicente Villada"

    México, Toluca de Lerdo, 50150, Mexico

  • Nuevo Hospital Civil de Guadalajara "Juan I. Menchaca"

    Guadalajara, Jalisco, 44340, Mexico

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