Preventing shivering after spinal anesthesia using nefopam, dexmedetomidine, and meperidine

Efficacy of Intravenous Nefopam, Dexmedetomidine, and Meperidine in Preventing Post-Spinal Anesthesia Shivering in Adult Patients Undergoing Lower Abdominal and Lower Limb Surgeries: A Double-Blind Comparative Study

Not applicable Interventional Kasr El Aini Hospital · NCT06627816

This study is testing whether nefopam, dexmedetomidine, or meperidine can help prevent shivering in adults after they receive spinal anesthesia for lower abdominal and leg surgeries.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment240 (estimated)
Ages21 Years to 60 Years
SexAll
SponsorKasr El Aini Hospital Academic / other
Locations1 site (Cairo)
Trial IDNCT06627816 on ClinicalTrials.gov

What this trial studies

This prospective, randomized, controlled, double-blinded study evaluates the effectiveness of nefopam in comparison to dexmedetomidine and meperidine for preventing post-spinal anesthesia shivering in adult patients undergoing lower abdominal and lower limb surgeries. The study aims to minimize side effects while assessing the efficacy of these medications. Previous studies have shown nefopam to be effective in treating postoperative shivering, and this research seeks to further explore its benefits specifically after neuraxial blockades.

Who should consider this trial

Good fit: Ideal candidates are adult patients aged 21-60 undergoing elective lower abdominal, urological, gynecological, lower limb, orthopedic, or plastic surgeries under spinal anesthesia.

Not a fit: Patients with known hypersensitivity to the study medications or those with severe comorbid conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective and safer option for preventing shivering in patients after spinal anesthesia.

How similar studies have performed: Previous studies have shown success with nefopam in preventing postoperative shivering, indicating a promising approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patients aged 21-60 undergoing elective lower abdominal, urological, gynecological, lower limb, orthopedic, or plastic surgeries under spinal anesthesia.

  * ASA physical status I and II.

Exclusion Criteria:

* • Known hypersensitivity to nefopam, dexmedetomidine, or pethidine.

  * Thyroid disorders, psychiatric disorders, severe diabetes, or autonomic neuropathies
  * Known history of substance or alcohol abuse
  * A history of convulsive disorders or severe neurological diseases
  * Severe cardiac, pulmonary, renal, or hepatic disease
  * Obstetric procedures and procedures requiring transfusion of blood and blood products.
  * A contraindication to spinal anesthesia, e.g., coagulation disorders, local or general infection, increased intracranial tension, and progressive neurological disorders.
  * Failed or partial spinal block.

Where this trial is running

Cairo

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.
Conditions NefopamDexmeditomidineMeperidinePost-spinal Anesthesia Shivering
Last reviewed 2026-06-13 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.