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CTRI Number  CTRI/2026/01/102470 [Registered on: 29/01/2026] Trial Registered Prospectively
Last Modified On: 29/01/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Comparision of intravenous lignocaine (local anaesthetic) + sub anaesthetic (low dose) ketamine (intravenous induction agent) versus scalp block (regional anesthesia) in blunting the fight or flight response to skull pin head holder application in elective craniotomy. 
Scientific Title of Study   Comparision of sub-anaesthetic dose of intravenous ketamine plus lignocaine versus lignocaine scalp block in blunting the sympathetic response to skull pin head holder application for elective.craniotomy- a non inferiority trial 
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 Kruti Jain 
Designation  Postgraduate junior resident 
Affiliation  All India Institue of Medical Sciences, Raipur 
Address  B block major Operation theatre complex, 4th floor,Department of Anaesthesiology, AIIMS Raipur, Tatibandh, Raipur.

Raipur
CHHATTISGARH
492099
India 
Phone  7680915957  
Fax    
Email  krutibhuta@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Prof Dr Subrata Kumar Singha  
Designation  Professor and head of the department of Anaesthesiology and critical care  
Affiliation  All India Institue of Medical Sciences, Raipur 
Address  B block major Operation theatre complex, 4th floor,Department of Anaesthesiology,AIIMS Raipur, Tatibandh, Raipur.

Raipur
CHHATTISGARH
492099
India 
Phone  8518881767  
Fax    
Email  subrat@aiimsraipur.edu.in  
 
Details of Contact Person
Public Query
 
Name  Dr Kruti Jain 
Designation  Postgraduate junior resident 
Affiliation  All India Institue of Medical Sciences, Raipur 
Address  B block major Operation theatre complex, 4th floor, Department of Anaesthesiology, AIIMS Raipur, Tatibandh, Raipur.

Raipur
CHHATTISGARH
492099
India 
Phone  7680915957  
Fax    
Email  krutibhuta@gmail.com  
 
Source of Monetary or Material Support  
Dr Kruti Jain postgraduate resident in Department of Anaesthesiology AIIMS Raipur Tatibandh Raipur Chhattisgarh India 492099 
 
Primary Sponsor  
Name  DrKruti Jain 
Address  B block 4th floor major Operation theatre Department of Anaesthesiology AIIMS Raipur Tatibandh Raipur Chhattisgarh India 492099 
Type of Sponsor  Other [Self] 
 
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 Kruti Jain  All India Institue Of Medical Sciences  Department of Anaesthesiology fourth floor B block major Operation theatre AIIMS Raipur Tatibandh Raipur Chhattisgarh 492099
Raipur
CHHATTISGARH 
7680915957

krutibhuta@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
IECAIIMSRAIPUR  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O||Medical and Surgical,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Intravenous lignocaine plus ketamine   Intravenous lignocaine will be given as a bolus dose of 1.5 mg/kg followed by an intravenous infusion of lignocaine at 1.5 mg/kg/hr for 10 minutes and intravenous ketamine in the dose of 0.3 mg/kg followed by an intravenous infusion Of ketamine at the rate of 0.3mg/kg/hr for 10 minutes prior to application of the skull pin head holder after the patient has been induced with standard general anesthesia protocol This will be a one time intervention  
Comparator Agent  Scalp block   Lignocaine 1% 20 ml will be infiltrated in the scalp using landmark guided technique after the induction of general anaesthesia using standard protocol and the skull pin head holder will be applied after 5 minutes of administering the scalp block the sympathetic response to skull pin head holder application will be seen This will be a one time intervention. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  a.Patients in age group 18-60 years, both males and females.
b.Patients posted for elective craniotomy.
Patients with ASA PS 1-3. 
 
ExclusionCriteria 
Details  a.Patients with pre-operative GCS less than 8/15.
b.Patients allergic to drugs used in the study.
c.Patients with co-morbidities like uncontrolled hypertension, coronary artery disease, heart failure,chronic liver disease, BMI greater than 30kg/m2, seizure disorders.
d.Pregnant women.
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant Blinded 
Primary Outcome  
Outcome  TimePoints 
Subanesthetic dose of intravenous ketamine with lignocaine is non-inferior to scalp block in blunting the hemodynamic responses to skull pin application for craniotomy.  The heart rate and blood pressure will be measured in both the groups of patient immediately after application of skull pin head holder and there after at 1 minute 2 minutes 5 minutes 10 minutes and 15 minutes 
 
Secondary Outcome  
Outcome  TimePoints 
Quantifying the requirement of rescue intravenous fentanyl boluses in both the groups  At the end of 15 minutes after the application of skull pin head holder  
 
Target Sample Size   Total Sample Size="54"
Sample Size from India="54" 
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 2 
Date of First Enrollment (India)   16/02/2026 
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="1"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
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   Application of skull pin head holder in craniotomies is routinely used which elicits a roboust sympathetic response which has the potential to affect the homeostasis negatively one of the principles of anaesthesia is to ensure adequate analgesia and patients undergoing surgeries will be voluntarily enrollled after they meet the inclusion criteria and will be randomised into two groups one with intravenous lignocaine and ketamine whilst the other into scalp block group 
hemodynamic changes will be noted when the skull pin head holder is applied and intermittently until the next fifteen minutes.
 
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