Actively Recruiting

Phase 4
Age: 18Years - 60Years
All Genders
ID07456111

Comparison of Remimazolam Besylate and Propofol Sedation During Colonoscopic Polypectomy Procedures

Led by Clinical Hospital Centre Zagreb · Updated on 2026-03-06

90

Participants Needed

1

Research Sites

56 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This clinical trial is investigating sedation methods during colonoscopic polypectomy procedures. It aims to compare the effects of remimazolam besylate combined with sufentanyl versus propofol combined with sufentanyl on circulatory and respiratory stability. The study also evaluates the incidence of hypotension and respiratory depression, as well as the overall sedation success and recovery times in adult patients. Participants are randomly assigned to one of two groups: a study group receiving remimazolam besylate and sufentanyl, and a control group receiving propofol and sufentanyl. In both groups, patients receive intravenous sufentanyl followed by the sedative drug, with doses tailored to achieve the desired sedation level assessed by BIS monitoring and the Modified Observers Assessment of Alertness and Sedation Scale (MOAA/S). Continuous oxygen flow and non-invasive monitoring are applied during the procedure. Throughout the study, patients are monitored for vital signs including oxygen saturation, heart rate, blood pressure, and respiratory rate before, during, and after the procedure. Sedation depth, time to adequate sedation, full alertness, and recovery readiness are measured. Researchers also track drug doses, procedure duration, infusion volumes, and post-procedure symptoms such as pain, nausea, and vomiting. The total observation period per participant spans approximately 2 to 4 hours.

CONDITIONS

Brief Title

A Comparison of Remimazolam Besylate and Propofol Sedation in Patients Undergoing Colonoscopic Polypectomy

Who Can Participate

Age: 18Years - 60Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Patients of any gender aged 18 to 60 years
  • Confirmed diagnosis of one or more colonic polyps and scheduled for colonoscopy and polypectomy
  • Colonoscopy duration expected between 30 and 50 minutes
  • ASA physical status classification I to III
  • Body Mass Index between 18.5 and 29.9 kg/m2
  • Signed informed consent to participate in the study
Not Eligible

You will not qualify if you...

  • Age over 60 years
  • ASA physical status classification IV or V
  • Body Mass Index greater than 29.9 kg/m2
  • High risk of vomiting, regurgitation, or aspiration of gastric contents
  • Uncontrolled hypertension with systolic pressure over 160 mmHg
  • Heart diseases including cardiomyopathy, rhythm disorders, low ejection fraction, valve issues, or coronary disease
  • Lung diseases such as pneumonia, COPD, asthma, or pulmonary tumors
  • Kidney failure or impaired kidney function (glomerular filtration rate 30-59 ml/min/1.73m2)
  • Liver diseases
  • Blood clotting or lymphatic tissue disorders
  • Advanced malignant disease
  • Allergies to soy, benzodiazepines, propofol, or opioids
  • Current use of analgesics or psycho-pharmaceutical medications
  • History of illicit drug use
  • Children, pregnant or nursing women
  • Alcohol dependency
  • Participation in other clinical studies
  • Refusal or failure to sign informed consent form

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - Approximately 30 to 50 minutes

Participants receive sedation with either remimazolam besylate or propofol during their colonoscopic polypectomy procedure. Sedation is carefully monitored using BIS and MOAA/S scales, with continuous measurement of vital signs including oxygen saturation, respiratory rate, heart rate, and blood pressure to ensure safety and effectiveness.

1 procedure visit (in-person)

Follow-up

Duration - Up to 2 hours after the procedure

Participants are monitored after the procedure until full recovery, including assessment of time to full alertness and readiness for discharge based on recovery criteria.

1 to 2 post-procedure visits (in-person)

Trial Site Locations

Total: 1 location

1

UHC Zagreb

Zagreb, Croatia, 10000

Actively Recruiting

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Research Team

Ž

Željko Drvar, MD, PhD

How is the study designed?

Study Type

INTERVENTIONAL

Masking

SINGLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Published Research Related To This Trial

The hemodynamic stability of remimazolam compared with propofol in patients undergoing endoscopic submucosal dissection: A randomized trial.

Yuwei Qiu, Wei Gu, Mingye Zhao...

https://pubmed.ncbi.nlm.nih.gov/36004376

Remimazolam tosilate compared with propofol for gastrointestinal endoscopy in elderly patients: a prospective, randomized and controlled study.

Jian Guo, Yitao Qian, Xiaojin Zhang...

https://pubmed.ncbi.nlm.nih.gov/35689208

Sedative effect of remimazolam combined with alfentanil in colonoscopic polypectomy: a prospective, randomized, controlled clinical trial.

Yueyang Xin, Tiantian Chu, Jinxu Wang...

https://pubmed.ncbi.nlm.nih.gov/35974309

Remimazolam tosilate in upper gastrointestinal endoscopy: A multicenter, randomized, non-inferiority, phase III trial.

Shao-Hui Chen, Tang-Mi Yuan, Jiao Zhang...

https://pubmed.ncbi.nlm.nih.gov/32677707

A Phase IIa, randomized, double-blind study of remimazolam (CNS 7056) versus midazolam for sedation in upper gastrointestinal endoscopy.

Keith M Borkett, Dennis S Riff, Howard I Schwartz...

https://pubmed.ncbi.nlm.nih.gov/25502841

A phase III study evaluating the efficacy and safety of remimazolam (CNS 7056) compared with placebo and midazolam in patients undergoing colonoscopy.

Douglas K Rex, Raj Bhandari, Taddese Desta...

https://pubmed.ncbi.nlm.nih.gov/29723512