Status:

COMPLETED

Propofol Dose-Finding for Colonoscope Insertion in Adult Patients

Lead Sponsor:

Kocaeli City Hospital

Conditions:

Effect of Drug

Eligibility:

All Genders

18-65 years

Phase:

NA

Brief Summary

The aim of this prospective dose-finding study is to determine the ED50 of propofol required for successful colonoscope insertion in adult patients. The study is designed using Dixon's up-and-down seq...

Detailed Description

The procedure is performed by an experienced endoscopist. If, during passage of the colonoscope through the rectosigmoid junction, the patient moves, experiences pain, vocalizes, or if the MOAA/S scor...

Eligibility Criteria

Inclusion

  • Patients who provided informed consent to participate
  • Patients scheduled for colonoscopy
  • ASA physical status I-III
  • Male and female patients aged 18-65 years

Exclusion

  • Patients who did not provide consent
  • Known allergy to propofol
  • Body weight \<40 kg
  • Body mass index (BMI) \>30 kg/m²
  • Presence of acute or chronic pain
  • Chronic alcohol consumption
  • Use of antipsychotic, antidepressant, or hypnotic medications
  • Patients with obstructive sleep apnea syndrome (STOP-Bang score ≥3)
  • Patients with known anorectal diseases such as hemorrhoids, anal fissure, or anal fistula
  • History of oncological disease
  • Uncontrolled hypertension (blood pressure \>180/110 mmHg)
  • Severe hepatic or renal dysfunction
  • Acute respiratory tract infection or other chronic respiratory disorders
  • Patients with a history of colorectal surgery

Key Trial Info

Start Date :

September 12 2025

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

October 15 2025

Estimated Enrollment :

27 Patients enrolled

Trial Details

Trial ID

NCT07166640

Start Date

September 12 2025

End Date

October 15 2025

Last Update

November 18 2025

Active Locations (1)

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1

University of Health Sciences Kocaeli City Hospital

Kocaeli, Izmit, Turkey (Türkiye), 41100