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CTRI Number  CTRI/2025/10/096508 [Registered on: 28/10/2025] Trial Registered Prospectively
Last Modified On: 24/10/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Multiple Arm Trial 
Public Title of Study   Effectiveness of magnesium sulphate, lignocaine and dexmedetomidine in attenuating the stress response during tracheal extubation- prospective randomized study 
Scientific Title of Study   Effect of Magnesium sulphate,Lidocaine and Dexmedetomidine on tracheal extubation response in patients under General anaesthesia - A double blinded randomised comparative prospective study 
Trial Acronym  nil 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Ajith K N  
Designation  post graduate student 
Affiliation  Kidwai Memorial Institute of Oncology 
Address  Department of Anaesthesia and pain relief Kidwawi Memorial Institute on Oncology Dr. M H Marigowda Road Bangalore

Bangalore
KARNATAKA
560029
India 
Phone  7019079776  
Fax    
Email  doctor.ajithkn@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Mamatha H S 
Designation  Associate Professor 
Affiliation  Kidwai Memorial Institute of Oncology 
Address  Department of Anaesthesia and pain relief Kidwawi Memorial Institute on Oncology Dr. M H Marigowda Road Bangalore

Bangalore
KARNATAKA
560029
India 
Phone  7624815394  
Fax    
Email  drmamathah@yahoo.com  
 
Details of Contact Person
Public Query
 
Name  Dr Ajith K N  
Designation  post graduate student 
Affiliation  Kidwai Memorial Institute of Oncology 
Address  Department of Anaesthesia and pain relief Kidwawi Memorial Institute on Oncology Dr. M H Marigowda Road Bangalore

Bangalore
KARNATAKA
560029
India 
Phone  7019079776  
Fax    
Email  doctor.ajithkn@gmail.com  
 
Source of Monetary or Material Support  
Kidwai memorial Institute of oncology  
 
Primary Sponsor  
Name  Nil 
Address  Nil 
Type of Sponsor  Other [Kidwai Memorial Institue of Oncology] 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Mamatha H S  Kidwai Memorial Institute of Oncology  Department of Anaesthesia and pain relief Kiwdai Memorial Institute on Oncology Dr M H Marigowda road, Bangalore 560029
Bangalore
KARNATAKA 
7624815394

drmamathah@yahoo.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
MEDICAL ETHICS COMMITTEE  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: C509||Malignant neoplasm of breast of unspecified site,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Dexmedetomidine  Dexmedetomidine 0.5 micrograms per kg bodyweight will be administred once the last stitch on the skin is place by the surgeon,the last painful stimulus of surgery 
Comparator Agent  Lidocaine   Lidocaine 1.5 milligrams per kg body weight will be administered once the last stitch on the skin is placed by the surgeon, the last painful stimulus of the surgery 
Intervention  Magnesium sulphate   Magnesium sulphate 30 milligrams per kg body weight shall be administered once the last stitch on the skin is placed by the surgeon the last painful stimulus of the surgery. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Patients undergoing elective oncosurgery under general anaesthesia
ASA grade I and II
Mallampati grade I or II
 
 
ExclusionCriteria 
Details  History of Asthma or COPD
Substance abuse, smoking , sedatives
Active airway infection or history of tracheal or laryngeal surgery 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   On-site computer system 
Blinding/Masking   Double Blind Double Dummy 
Primary Outcome  
Outcome  TimePoints 
To compare the efficacy of intravenous magnesium sulphate, lidocaine and dexmedetomidine in attenuating
(1) Hemodynamic responses ( Heart rate and blood pressure ) during tracheal extubation
(2) Tracheal responses ( bucking, coughing and desaturation) during tracheal extubation  
(1) Immediately before extubation
(2) Immediately after extubation
(3) Every 5minutes for first 60 minutes and 2 hours after extubation
 
 
Secondary Outcome  
Outcome  TimePoints 
To evaluate the time to extubation & recovery characteristics
To assess sedation levels post extubation
To monitor any adverse effects related to these agents 
(1) Immediately after extubation
(2) Every 5minutes for first 60 minutes & 2 hours after extubation
 
 
Target Sample Size   Total Sample Size="150"
Sample Size from India="150" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   10/11/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   Tracheal extubation is a critical phase of general anaesthesia and is not simply a reversal of the process of intubation because conditions are often less favourable that at the start of anaesthesia . At extubation, there is a transition from a controlled to an uncontrolled situation often associated with undesirable airway and hemodynamic responses including coughing, hypertension, tachycardia, laryngospasm and increased intracranial or intraocular pressure. These responses can lead to significant complications, especially in high risk patients. To mitigate these effects, several agents have been used. Magenisum sulphate acts as a calcium antagonist and NMDA receptor blocker, providing smooth muscle relaxation and attenuation of sympathetic responses. Lidocaine, a local anesthetic, stabilizes neuronal membranes and suppresses airway reflexes. Dexmedetomidine, a selective alpha 2 adrenergic agonist offers sedation, analgesia and sympatholysis, thus promoting smooth extubation. This study aims to compare the effictiveness of magnesium sulphate, lidocaine and dexmedetomidine in attenuating extubation responses in patients undergoing oncosurgery under general anaesthesia 
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