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Efficacy of Intravenous Ketamine, Lidocaine, and Magnesium Sulfate (KLM) Regimen on 24-Hour Cumulative Morphine Consumption in Ambulatory Laparoscopic Cholecystectomy: A Randomized Controlled Trial

Efficacy of Intravenous Ketamine, Lidocaine, and Magnesium Sulfate (KLM) Regimen on 24-Hour Cumulative Morphine Consumption in Ambulatory Laparoscopic Cholecystectomy: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20260525002
Enrollment
60
Registered
2026-05-25
Start date
2026-05-25
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Postoperative Pain Cholelithiasis Laparoscopic Cholecystectomy Postoperative Pain Ambulatory Surgical Procedures Ketamine Lidocaine Magnesium Sulfate Morphine

Interventions

Participants in this experimental group will receive an intravenous infusion of the KLM regimen, consisting of lidocaine 1.5 mg/kg, ketamine 0.15 mg/kg, and magnesium sulfate 30 mg/kg. The medication
Experimental Drug,Placebo Comparator Drug
KLM Regimen,NSS

Sponsors

Sawanpracharak Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Patients scheduled for elective laparoscopic cholecystectomy under the One-Day Surgery (ODS) program at Sawanpracharak Hospital. 2. American Society of Anesthesiologists (ASA) physical status I or II. 3. Body Mass Index (BMI) less than 30 kg/m2. 4. Ability to communicate in Thai, understand the Numerical Rating Scale (NRS) for pain assessment, and comprehend the functional recovery assessment steps. 5. Willingness to participate in the study and sign the informed consent form.

Exclusion criteria

Exclusion criteria: 1. Physiological and physical limitations increasing the risk of complications, including age < 18 or > 65 years, BMI >= 30 kg/m2, or ASA physical status >= III. 2. Medical contraindications to the KLM regimen, including a history of allergy to lidocaine, ketamine, or magnesium sulfate, severe hepatic impairment (Child-Pugh C), chronic renal failure, or a history of epilepsy. 3. Cardiovascular abnormalities, including uncontrolled hypertension (systolic BP >= 180 mmHg or diastolic BP >= 110 mmHg), bradycardia (2nd-3rd degree heart block), or cardiac conduction abnormalities. 4. Neuropsychiatric limitations or risky behaviors, including a history of psychiatric disorders or active psychosis, a history of substance or alcohol abuse, or chronic opioid use (continuous use for more than 3 months). 5. Specific medical and surgical conditions affecting study outcomes, including pregnancy or lactation, acute cholecystitis, or inability to assess pain and communicate according to the research protocol.

Design outcomes

Primary

MeasureTime frame
24-hour cumulative morphine consumption At 24 hours postoperatively Total morphine dose in milligrams (mg)

Secondary

MeasureTime frame
Postoperative pain intensity At 0, 30, and 60 minutes in the PACU Numerical Rating Scale (NRS, 0-10),Incidence of postoperative nausea and vomiting (PONV), sheivering, sedation and dizziness From immediately post-operation until discharge Presence or absence,Incidence of perioperative hemodynamic instability Before intervention, after intervention, after endotracheal intubation, and after surgical incision Incidence of hypertension, hypotension, or tachycardia (defined as more than 20% change in BP or HR from baseline),Time to first ambulation Assessed every 2 hours until successful ambulation Time recorded via prompted ambulation protocol,Incidence of delayed emergence At the end of surgery Presence or absence of delayed emergence (defined as time from the discontinuation of anesthetics to extubation exceeding 30 minutes)

Countries

Thailand

Contacts

Public ContactChompoonik Jiemjitpolchai

Department of Anesthesiology, Sawanpracharak Hospital, Nakhonsawan, Thailand

chompoonik.jiem@gmail.com0619492635

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 10, 2026