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CTRI Number  CTRI/2025/08/092844 [Registered on: 11/08/2025] Trial Registered Prospectively
Last Modified On: 05/08/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   Sedation for MRI in children:a comparison of Ketamine–Dexmedetomidine and Ketamine–Midazolam  
Scientific Title of Study   Premedication in paediatric patients undergoing MRI: comparative study of intramuscular ketamine 3mg/kg with dexmedetomidine 1.5mcg/kg versus ketamine 3mg/kg with midazolam 0.05mg/kg 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Anuja Gopi 
Designation  Resident Doctor 
Affiliation  Sri Satya Sai Institute of Higher Medical Sciences 
Address  Edathara house Vakery p o Sulthan Bathery Wayanad, kerala

Wayanad
KERALA
673592
India 
Phone  8921602741  
Fax    
Email  anujagopi.online@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Kolli S Chalam 
Designation  Senior Consultant 
Affiliation  Sri Satya Sai Institute of Higher Medical Sciences 
Address  Sri Sathya Sai Institute of Higher Medical Sciences EPIP Area, Whitefield, Bangalore

Bangalore
KARNATAKA
560066
India 
Phone  9945210967  
Fax    
Email  chalam.k@sssihms.org.in  
 
Details of Contact Person
Public Query
 
Name  Dr Vrushali Choudhary 
Designation  Additional Senior Consultant 
Affiliation  Sri Satya Sai Institute of Higher Medical Sciences 
Address  Sri Sathya Sai Institute of Higher Medical Sciences EPIP Area, Whitefield, Bangalore

Bangalore
KARNATAKA
560066
India 
Phone  8308836873  
Fax    
Email  choudhary.vrushali@gmail.com  
 
Source of Monetary or Material Support  
Sri Sathya Sai Institute of Higher Medical Sciences KIADB Export Promotion Industrial Area,Whitefield,Bengaluru,Karnataka ,India pin:560066 
 
Primary Sponsor  
Name  Sri Sathya Sai Institute of Higher Medical Sciences 
Address  EPIP Area,Whitefield,Bangalore -560066 
Type of Sponsor  Other [Trust Hospital] 
 
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 Anuja Gopi  Sri Satya Sai Institute of Higher Medical Sciences  Department of Radiology, G600, Ground Floor Sri Sathya Sai Institute of Higher Medical Sciences, KIADB Export Promotion Industrial Area, Whitefield 560066
Bangalore
KARNATAKA 
08921602741

anujagopi.online@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTIONAL ETHICS COMMITTEE-Sri Sathya Sai Institute of Higher Medical Sciences ,Whitefield  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: G259||Extrapyramidal and movement disorder, unspecified, (2) ICD-10 Condition: G809||Cerebral palsy, unspecified, (3) ICD-10 Condition: G409||Epilepsy, unspecified, (4) ICD-10 Condition: G468||Other vascular syndromes of brainin cerebrovascular diseases, (5) ICD-10 Condition: D496||Neoplasm of unspecified behavior of brain,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Intramuscular ketamine with dexmedetomidine for pediatric MRI  In paediatric patients aged 1 to 10 years,a single intramuscular injection with combination of ketamine 3mg/kg with dexmedetomidine 1.5mcg/kg will be given in anterolateral aspect of thigh.Intravenous propofol 0.5mg/kg will be given ,if child awakens during the procedure.Ease of parental seperation,Acceptance of IV cannulation ,additional requirement of propofol for completion of study,hemodynamics,time for discharge and adverse events if any will be observed 
Comparator Agent  Intramuscular ketamine with midazolam for paediatric MRI  In paediatric patients aged 1 to 10 years, a single intramuscular injection with combination of ketamine 3mg/kg with midazolam 0.05mg/kg will be given in the anterolateral aspect of thigh.Intravenous propofol 0.5mg/kg will be given ,if child awakens during the procedure.Ease of parental seperation,Acceptance of IV cannulation ,additional requirement of propofol for completion of study,hemodynamics,time for discharge and adverse events if any will be observed 
 
Inclusion Criteria  
Age From  1.00 Year(s)
Age To  10.00 Year(s)
Gender  Both 
Details  All patients between the age group of 1 to 10 years belonging to ASA I and II scheduled for elective MRI under sedation will be included in the study. 
 
ExclusionCriteria 
Details  Patients with active upper respiratory tract infections.
Patients with history of psychiatric illness.
Patients with morbid obesity and syndromic children.
Patients with raised intracranial tension.
Patients with history of known allergy to any of the study drugs, will be excluded from the 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 ease of parental separation
2.To assess acceptance of iv cannulation
3.To assess the requirement of additional supplementation of IV propofol during the procedure. 
Attempt to seperate from parent-Ten minutes after the intramuscular injection.
2.attempt for iv cannulation -one minute after seperating from parent
3.To assess the requirement of additional supplementation of IV propofol:propofol will be given if the child awakens during the mri procedure  
 
Secondary Outcome  
Outcome  TimePoints 
1.To compare heart rate, blood pressure, respiratory rate & oxygen saturation in both groups during procedure.
2.To compare the readiness of discharge from recovery room.
3.To compare the incidence of adverse events if any. 
1.Hemodynamics - baseline vitals will be recorded ,5 minute,10 minute,15 minute,20 minute,25 minute,30 minute, 45 minute,60 minute, 75minute, 90 minute,105 minute,120 min
2.Readiness of discharge till child meets the discharge criteria,assessment will be done at 120 minute,150 minute,180 min,210 minute,240 minute,300 minute 
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
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)   20/08/2025 
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="1"
Months="6"
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   A  total of sixty patients aged between one to ten years undergoing elective MRI will be enrolled in the study and will be randomly divided in to two groups DK-dexmedetomidine ketamine and group MK-midazolam ketamine.DK groups will receive intramuscular injection of ketamine 3mg/kg with dexmedetomidine 1.5mcg/kg and group MK will receive intramuscular injection of ketamine 3 mg/kg with midazolam 0.05mg/kg. Injection glycopyrrolate at dose of 5mcg/kg will be given to both groups. Baseline vitals will be recorded. Following this, intramuscular injection at anterolateral aspect of thigh will be given. After ten minutes of injection, attempt will be made to separate the child from the parent and ease of parent separation will be assessed according to scoring scale. Once child is separated, an attempt for securing an intravenous cannula will be done and the ease of securing the cannula will also be given scores according to the scale. After this, child will be taken into the mri suite. pulse rate, oxygen saturation, respiratory rate and blood pressure will be documented every five minutes till the first thirty minutes of procedure followed by documentation every fifteen mins till two hours. If child awakens during the procedure intravenous propofol at a dose of 0.5mg/kg will be given and the total dose will be recorded. Once the procedure is completed child will be transferred to the recovery room and will be observed till the child meets the discharge criteria. Time taken to fulfill the criteria will also be recorded.
Parent separation anxiety scale
  • Patient unafraid, cooperative, asleep=1
  • Slight fear or crying, cooperative with reassurance=2
  • Moderate fear, crying, not quiet with reassurance=3
  • Crying, need for restraint=4

Ease of IV cannulation
  • No reaction=1
  • Minor resistance=2
  • Fights without success=3
  • Fights with success=4
 
Discharge criteria
  • Cardiovascular function and airway patency are satisfactory and stable
  • The patient is easily arousable, and protective reflexes are intact
  • The patient can talk/phonate (if age appropriate)
  • The patient can sit up unaided (if age appropriate)
  • For a very young or handicapped child incapable of the usually expected responses, the pre sedation level of responsiveness or a level as close as possible to the normal level for the child should be achieved
  • The state of hydration is adequate


 
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