Colonoscopy (Procedure)NCT07295405
Water Temperature and Bowel Cleansing Quality
An observational study of Colonoscopy (Procedure), run by Bakirkoy Dr. Sadi Konuk Research and Training Hospital at 1 site in Turkey (Türkiye).
Trial summary
Observational study The aim of this observational study is to investigate the effect of water temperature used during pre-colonoscopy bowel preparation on the quality of bowel cleansing. Read more about this study
- Who is it for?
- Ages 18 to 90 years
- Conditions the study is for
- Colonoscopy (Procedure)
- How many people
- 260 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Feb 2025to 1 Aug 2025
- How long will I take part?
- 1 Day
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: patients admitted to the general surgery endoscopy clinic of a tertiary-care hospital for colonoscopy
Inclusion Criteria: -Patients aged ≥ 18 years undergoing elective colonoscopy -Ability to provide informed consent -Planned bowel preparation using water-based regimens -No contraindication to warm or cold water intake
Exclusion Criteria: - Emergency colonoscopy -History of inflammatory bowel disease -Prior colorectal surgery -Severe heart failure, renal failure, or electrolyte imbalance -Pregnancy -Inability to complete bowel preparation protocol -Use of additional laxatives outside the study protocol
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Bakırköy Dr. Sadi Konuk Training and Research Hospital
Istanbul, Istanbul, 34147
About this study
Official title: Effect of Water Temperature on Bowel Cleansing Quality: A Prospective Observational Study
Observational study The aim of this observational study is to investigate the effect of water temperature used during pre-colonoscopy bowel preparation on the quality of bowel cleansing. The primary research question to be addressed is as follows: Which water temperature results in better bowel cleansing quality? For this purpose, patients will be divided into two groups based on the use of warm water or cold water, and the quality of bowel preparation will be compared between the groups.
Read the detailed description
The aim of this observational study is to investigate the effect of water temperature used during pre-colonoscopy bowel preparation on the quality of bowel cleansing. The primary research question to be addressed is as follows: Which water temperature results in better bowel cleansing quality? For this purpose, patients will be divided into two groups based on the use of warm water or cold water, and the quality of bowel preparation will be compared between the groups.
- Conditions
- Colonoscopy (Procedure)
- Keywords
- Colonoscopy, Bowel Preparation, Water Temperature, Boston Bowel Preparation Scale
What is being measured
The primary outcome is the main question the study is designed to answer.
quality of bowel preparation
The quality of bowel preparation will be assessed using the Boston Bowel Preparation Scale.
Measured: 01.02.2025-01.07.2025
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Dec 2025
- Study start1 Feb 2025
- Primary completion1 Jul 2025
- Study completion1 Aug 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Colonoscopy (Procedure)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 260 participants (actual)
- Target duration
- 1 Day
Sponsor and investigators
- Lead sponsor
- Bakirkoy Dr. Sadi Konuk Research and Training Hospital
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Nurettin Şahin, Bakirkoy Dr. Sadi Konuk Research and Training Hospital
- Investigators
- Nurettin Şahin, MD, Principal investigator, Bakirkoy Dr. Sadi Konuk Research and Training Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07295405
- Sponsor's protocol ID
- Bakırkoy Sadi konuk trials
- Status last verified
- Jan 2026
- First submitted
- 8 Dec 2025
- Last updated
- 21 Jan 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: All study data will be retained by the principal investigator and may be shared when required.
Publications
Shahini E, Sinagra E, Vitello A, Ranaldo R, Contaldo A, Facciorusso A, Maida M. Factors affecting the quality of bowel preparation for colonoscopy in hard-to-prepare patients: Evidence from the literature. World J Gastroenterol. 2023 Mar 21;29(11):1685-1707. doi: 10.3748/wjg.v29.i11.1685.
PubMed 37077514
Study at a glance
From the registry record, last updated by the sponsor on 21 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of Water Temperature on Bowel Cleansing Quality: A Prospective Observational Study
- ClinicalTrials.gov ID
- NCT07295405
- Acronym / sponsor ID
- Bakırkoy Sadi konuk trials
- Conditions
- Colonoscopy (Procedure)
- Keywords
- Colonoscopy, Bowel Preparation, Water Temperature, Boston Bowel Preparation Scale
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 260 participants (actual)
- Lead sponsor
- Bakirkoy Dr. Sadi Konuk Research and Training HospitalOther government
- Study start
- 1 Feb 2025 (actual)
- Primary completion
- 1 Jul 2025 (actual)
- Study completion
- 1 Aug 2025 (actual)
- First posted
- 19 Dec 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Observational study The aim of this observational study is to investigate the effect of water temperature used during pre-colonoscopy bowel preparation on the quality of bowel cleansing. The primary research question to be addressed is as follows: Which water temperature results in better bowel cleansing quality? For this purpose, patients will be divided into two groups based on the use of warm water or cold water, and the quality of bowel preparation will be compared between the groups.
Detailed description
The aim of this observational study is to investigate the effect of water temperature used during pre-colonoscopy bowel preparation on the quality of bowel cleansing. The primary research question to be addressed is as follows: Which water temperature results in better bowel cleansing quality? For this purpose, patients will be divided into two groups based on the use of warm water or cold water, and the quality of bowel preparation will be compared between the groups.
Study design
- Observational model
- Other
- Time perspective
- Prospective
- Target follow-up
- 1 Day
Who may qualify
- Ages
- 18 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- patients admitted to the general surgery endoscopy clinic of a tertiary-care hospital for colonoscopy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
quality of bowel preparation
Time frame: 01.02.2025-01.07.2025
The quality of bowel preparation will be assessed using the Boston Bowel Preparation Scale.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Jan 2026.
- Results publication: PubMed 37077514Shahini E, Sinagra E, Vitello A, Ranaldo R, Contaldo A, Facciorusso A, Maida M. Factors affecting the quality of bowel preparation for colonoscopy in hard-to-prepare patients: Evidence from the literature. World J Gastroenterol. 2023 Mar 21;29(11):1685-1707. doi: 10.3748/wjg.v29.i11.1685.
- Individual participant dataSharing planned: Undecided. All study data will be retained by the principal investigator and may be shared when required.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Nurettin Şahin, MD principal investigator
Bakirkoy Dr. Sadi Konuk Research and Training Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Colonoscopy (Procedure), run by Bakirkoy Dr. Sadi Konuk Research and Training Hospital at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 21 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
quality of bowel preparation (time frame: 01.02.2025-01.07.2025). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT07295405, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Jan 2026.