Finding the best lidocaine dose to reduce pain during propofol injection for anesthesia

Optimal Lidocaine Propofol Mixture for Painless Induction of Anesthesia

Sohag University · NCT05898061

This study is testing the best amount of lidocaine to mix with propofol to see if it can reduce pain during the injection for people having elective surgery.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years to 60 Years
SexAll
SponsorSohag University (other)
Locations1 site (Sohag)
Trial IDNCT05898061 on ClinicalTrials.gov

What this trial studies

This research aims to identify the optimal dose of lidocaine mixed with propofol to minimize pain during the injection of propofol for general anesthesia. The study will utilize a modified Dixon's up-and-down method to assess pain severity in patients aged 18-60 years undergoing elective surgery. It will evaluate various outcomes, including pain scale during injection, heart rate changes, and patient satisfaction. The study will be conducted at Sohag University Hospital with a focus on ASA I and II patients, excluding those with certain medical conditions.

Who should consider this trial

Good fit: Ideal candidates are patients aged 18 to 60 years scheduled for elective surgery under general anesthesia with ASA physical status I or II.

Not a fit: Patients with a history of drug allergies, hepatic or renal impairment, cardiac issues, neurologic deficits, psychiatric disorders, or those requiring preoperative sedation may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could significantly improve the comfort of patients during anesthesia induction by reducing injection pain.

How similar studies have performed: Previous studies have explored lidocaine's effectiveness in reducing propofol injection pain, but this specific evaluation of optimal dosing is less commonly tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients scheduled for elective surgery under general anesthesia.
* Aged 18 to 60 years
* American Society of Anesthesiologists physical status I \& II

Exclusion Criteria

* History of drug allergy
* Hepatic or renal impairment .Cardiac disease
* Neurologic deficits ,psychiatric disorders
* Anxious patients who need sedation preoperatively

Where this trial is running

Sohag

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Pain, During Injection of Propofol for Induction of Anesthesia, Propofol - Lidocaine - Painless Induction

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.