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Colonoscopy's carbon footprint under the microscope

NCT ID NCT07171853

Knowledge-focused Sponsor: King Chulalongkorn Memorial 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Aug 05, 2026 · Updated 3 times

Summary

This study measures the carbon dioxide emissions produced during colonoscopy for colorectal cancer screening, including energy use, equipment, medications, and waste. Researchers will also compare different polypectomy techniques to see which are more eco-friendly. The goal is to establish baseline data and identify ways to reduce the environmental impact of this common procedure.

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 successful, this could help hospitals adopt greener practices for colonoscopy, reducing the carbon footprint of routine cancer screening.
What could go wrong
This is an observational study measuring emissions, not testing a treatment. The findings may not apply to all hospitals or regions.

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.

Participants

362 people

The number who actually took part.

Started

Oct 2025

Finished

Apr 2026

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.

Who is studied

Patients aged 18-80 years who received a colonoscopy at King Chulalongkorn Memorial Hospital

Ages

18 to 80 years

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: * Patients aged 18-80 years Exclusion Criteria: * Patient status grade III-V according to the American Society of Anesthesiologists (ASA) * Poor bowel preparation (grade \<6 in the Boston Bowel Preparation Scale \[BBPS\]) * Endoscopic JNET type III or suspicion of malignancy * Hematologic or coagulation disorders, Plt\<140,000/mcL, INR\>1.5 * anti-platelet/anticoagulant medication that could not be paused as recommended in the current guideline * Emergency colonoscopy, GI bleeding, unstable vital sign, critical ill patient * Inflammatory bowel disease * Pregnancy * Severe cardiopulmonary disease * Severe infection * Malignancy * History of allergy to IV sedative medication

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Conditions

The condition(s) this trial relates to.

colorectal cancer

As listed by the trial registrant

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

Colonoscopy

Contacts and locations

Locations

  • King Chulalongkorn Memorial Hospital

    Bangkok, Bangkok, 10330, Thailand

More trials for these conditions

Other studies related to the condition(s) this trial covers.