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CTRI Number  CTRI/2025/09/095383 [Registered on: 24/09/2025] Trial Registered Prospectively
Last Modified On: 19/09/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   To study the effectiveness of intranasal atomized dexmedetomidine versus ketamine as a premedication for providing sedation and anxiolysis in children undergoing adenotonsillectomy in general anaesthesia. 
Scientific Title of Study   A randomized comparative study of intranasal atomized dexmedetomidine versus ketamine as a premedication in children undergoing adenotonsillectomy in general anaesthesia at SMS Medical College Jaipur 
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 Mamta Sharma 
Designation  Senior Professor 
Affiliation  Sawai Man Singh Medical College Jaipur 
Address  ENT OT Charak Bhawan Department of Anaesthesia SMS Medical College Jaipur

Jaipur
RAJASTHAN
302004
India 
Phone  9829566077  
Fax    
Email  drmamtasharma@hotmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Mamta Sharma 
Designation  Senior Professor 
Affiliation  Sawai Man Singh Medical College Jaipur 
Address  ENT OT Charak Bhawan Department of Anaesthesia SMS Medical College Jaipur

Jaipur
RAJASTHAN
302004
India 
Phone  9829566077  
Fax    
Email  drmamtasharma@hotmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Mahak Goyal 
Designation  Junior Resident  
Affiliation  Sawai Man Singh Medical College Jaipur 
Address  Department of Anaestheisa SMS Medical College Jaipur

Jaipur
RAJASTHAN
302004
India 
Phone  9413146822  
Fax    
Email  mahakgoyal1403@gmail.com  
 
Source of Monetary or Material Support  
Department of Anaesthesia Sawai Man Singh Medical College Jaipur 
 
Primary Sponsor  
Name  Department of Anaesthesia Sawai Man Singh Medical College Jaipur 
Address  Department of Anaestheisa SMS Medical College Jaipur 302004 Rajasthan 
Type of Sponsor  Government medical college 
 
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 Mahak Goyal  Sawai Man Singh Medical College and Attached Hospitals   ENT OT Charak Bhawan Department of Anaestheisa SMS Medical College Jaipur
Jaipur
RAJASTHAN 
9413146822

mahakgoyal1403@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Office of Ethics Committee SMS Medical College Jaipur   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: J353||Hypertrophy of tonsils with hypertrophy of adenoids,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Intranasal atomized dexmedetomidine (2.5 mcg per kg)  Patients will be administered intranasal atomized dexmedetomidine (2.5 mcg per kg diluted to 2.6 mL with 0.9 percent saline) using intranasal mucosal atomization device as premedication 30 minutes before induction and level of sedation and anxiolysis is assessed.  
Comparator Agent  Intranasal atomized ketamine (5mg per kg)  Patients will be administered intranasal atomized ketamine (5mg per kg diluted to 2.6 mL with 0.9 percent saline) using intranasal mucosal atomization device as premedication 30 minutes before induction and level of sedation and anxiolysis is assessed.  
 
Inclusion Criteria  
Age From  3.00 Year(s)
Age To  10.00 Year(s)
Gender  Both 
Details  1.Children scheduled for adenotonsillectomy under general anaesthesia.
2.Patients belonging to American Society of Anaesthesiologists (ASA) class I and II.
3.Patient’s parents willing to give informed written consent.
 
 
ExclusionCriteria 
Details  1.Patients with known allergies to dexmedetomidine or ketamine.
2.Patients with weight greater than 25 kg.
3.Patients with any congenital anomaly or syndrome.
4.Patients with history of seizures.
5.Patients with upper respiratory tract infection.
6.Patients with airway malformations or anticipated difficult airway.
7.Patients with intellectual disability.
8.Patients involved in any other study.


 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
1.To assess and compare the degree of sedation using the University of Michigan Sedation Scale (UMSS) between intranasal atomized dexmedetomidine versus ketamine.
2.To assess and compare the ease of parental separation using Parental Separation Anxiety Score (PSAS) between the two groups
 
10 minutes, 20 minutes, 30 minutes 
 
Secondary Outcome  
Outcome  TimePoints 
1.To assess and compare mask acceptance using Mask Acceptance Score (MAS) between the two groups .
2.To assess and compare the ease of venous cannulation using Groningen Distress Rating Scale (GDRS) between the two groups.
3.To assess and compare vital parameters like Heart Rate, blood pressure, oxygen saturation between the two groups.
4.To assess and compare adverse effects if any, between the two groups.
5.To assess and compare the incidence of emergence agitation using WATCHA Scale between the two groups.

 
10 minutes, 20 minutes, 30 minutes 
 
Target Sample Size   Total Sample Size="100"
Sample Size from India="100" 
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   N/A 
Date of First Enrollment (India)   13/10/2025 
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="0"
Months="3"
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  
Paediatric  patients present a unique set of challenges to the anaesthetist as preoperative anxiety in children leads to a difficulty in parental separation, i.v. cannulation, induction of anaesthesia, greater analgesic requirements and emergence agitation .Hence, the administration of balanced short-acting sedative agents with minimal risk of respiratory dysfunction is recommended under close monitoring of vitals. Dexmedetomidine is a selective alpha 2 agonist similar to clonidine, but with higher affinity to the alpha 2 receptor. It produces dose-dependent sedation, anxiolysis, and analgesia without respiratory depression and minimal effect on respiratory rate and tidal volume. Ketamine acts on the N methyl D aspartate receptor (NMDA R) producing a dissociative anesthesia. Ketamine is known to reduce central sensitization to pain, decrease overall opioid utilization, and produce effective sedation level. Oral administration has low bioavailability. Parenteral and intramuscular routes are invasive and painful. Intranasal application is a relatively non-invasive and easy route of administration which has the additional benefit of not requiring patient cooperation. With this background, we have planned this study to compare the efficacy of intranasal atomized dexmedetomidine versus ketamine as a premedication for anxiolysis and sedation in pediatric patients undergoing adenotonsillectomy in general anaesthesia.
 
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