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CTRI Number  CTRI/2025/10/095681 [Registered on: 07/10/2025] Trial Registered Prospectively
Last Modified On: 06/10/2025
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   A Study to Find Out Whether Low-Dose Dexmedetomidine Works Better Than Fentanyl in Preventing Confusion and Restlessness When Adults Wake Up After General Anaesthesia. 
Scientific Title of Study   Low dose Dexmedetomidine versus Fentanyl for Attenuation of Emergence Delirium after General Anaesthesia in Adults: A Randomized Controlled 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  Taba Annu 
Designation  Junior Resident 
Affiliation  Regional Institute of Medical Sciences Imphal Manipur 
Address  LH 2, Department of Anaesthesiology, Regional Institute of Medical Sciences Imphalwest Manipur

Imphal West
MANIPUR
795004
India 
Phone  9205678194  
Fax    
Email  naneannutaba@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  L Pradipkumar Singh 
Designation  Professor 
Affiliation  Regional Institute of Medical Sciences Imphal Manipur 
Address  Department of Anaesthesiology, Regional Insitute of Medical Sciences Imphalwest Manipur

Imphal West
MANIPUR
795004
India 
Phone  7005238251  
Fax    
Email  drlaithangba@gmail.com  
 
Details of Contact Person
Public Query
 
Name  L Pradipkumar Singh 
Designation  Professor 
Affiliation  Regional Institute of Medical Sciences Imphal Manipur 
Address  Department of Anaesthesiology, Regional Institute of Medical Sciences Imphalwest Manipur

Imphal West
MANIPUR
795004
India 
Phone  7005238251  
Fax    
Email  drlaithangba@gmail.com  
 
Source of Monetary or Material Support  
Regional Institute of Medical Sciences Imphalwest Manipur India 795004 
 
Primary Sponsor  
Name  Taba Annu 
Address  Department of Anaesthesiology, Regional Institute of Medical Sciences Imphalwest Manipur India 795004 
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 
Taba Annu  Regional Institute of Medical Sciences Imphal   Modular OT complex, Ground floor, Room Number 1, Department of anaesthesia Regional institute of medical sciences imhalwest manipur India
Imphal West
MANIPUR 
09205678194

naneannutaba@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
RESEARCH ETHICS BOARD RIMS  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  Dexmedetomidine  Patients will be given Fentanyl 1mcg/kg Intravenous bolus plus Dexmedetomidine 0.2mcg/kg/hr intravenous infusion just after induction of anaesthesia till closure of incision. 
Comparator Agent  Fentanyl  Patients will receive a Fentanyl 1mcg/kg Intravenous bolus plus a Fentanyl 1mcg/kg/hr intravenous infusion just after the induction of anaesthesia and will be given till the closure of incision. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Patients of either sex
18- 60 years of age
American Society of Anaesthesiologists physical status I or II
Elective surgery under general anaesthesia
Pre-operative MMSE (Mini-Mental state Examination) score more than or equal to 24
BMI less than or equal to 30 kg per m2
 
 
ExclusionCriteria 
Details  Patient’s refusal to sign a written informed consent.
Severe neurological or psychiatric disorders.
Patients on Tranquilizer or antidepressant medication.
Patients with history of smoking or alcohol consumption during the last 48 hours.
Patients with chronic lung disease.
Oto-laryngological procedures (Which poses additional challenges for emergence
agitation).
Haemodynamically unstable patients.
Anticipated difficult airway (Multiple attempts of endotracheal intubation increases
emergence delirium).
 
 
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 
To compare the mean emergence delirium score in the two study groups  Post extubation 20 minutes 
 
Secondary Outcome  
Outcome  TimePoints 
Time to first rescue analgesia  1st hour 
Extubation time   End of surgery 
Postoperative nausea & vomiting (PONV)  1st hour 
Emergence time  1st hour 
 
Target Sample Size   Total Sample Size="94"
Sample Size from India="94" 
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/ Phase 3 
Date of First Enrollment (India)   17/11/2025 
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 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   This study, Low dose Dexmedetomidine versus Fentanyl for attenuation of Emergence Delirium after general anaesthesia in adults: a randomised controlled trial will be undertaken in the Department of Anaesthesiology, RIMS, Imphal, from August 2025 to July 2027.  After obtaining institutional ethics committee approval and written informed consents from the patients, 94 patients will be randomized into two groups. Group A patients will be started on Inj. Fentanyl 1mcg per kg IV bolus plus Inj. Dexmedetomidine 0.2 mcg per kg per hr IV infusion. Group B patients will receive a Fentanyl 1 mcg per kg IV bolus plus a Fentanyl 1 mcg per kg per hr infusion following induction of anaesthesia with propofol and maintenance with 50 percent Nitrous oxide in oxygen with Sevoflurane 0.6 to 1.5 percent to titrate the BIS value to 40 – 60 and ETCO2 30-35 mmHg. Infusion drugs will be stopped 15-20 minutes before the end of skin closure and inhalational agents will be cut-off 5-10 minutes before end of skin closure. Reversal of residual neuromuscular blockade will be done when the end tidal anaesthetic agent concentration is less than MAC-Awake. Data will be collected and tabulated in excel format for analysis using SPSS. Data will be analysed using appropriate statistics and a p-value of less than 0.05 will be considered significant 
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