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CTRI Number  CTRI/2025/10/096703 [Registered on: 31/10/2025] Trial Registered Prospectively
Last Modified On: 30/10/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Comparative Evaluation of Two Doses of Dexmedetomidine as an Adjuvant to Ropivacaine in Ultrasound-Guided Supraclavicular Brachial Plexus Block 
Scientific Title of Study   Comparison of efficacy of two doses of dexmedetomidine as adjuvant to ropivacaine in ultrasound guided supraclavicular brachial plexus block: A Randomised Clinical Trail 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Muhamed Shakeel  
Designation  Post Graduate Trainee 
Affiliation  Regional Institutions of Medical Sciences 
Address  Department of Anaesthesiology, Regional Institute of Medical Sciences, Imphal West, Manipur - 795004, India

Imphal West
MANIPUR
795004
India 
Phone  9048606029  
Fax    
Email  shakmd31@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Ashem Jack Meitei 
Designation  Assistant Professor 
Affiliation  Regional Institute of Medical Sciences, Imphal West, Manipur 
Address  Department of Anaesthesiology, Regional Institute of Medical Sciences, Imphal West, Manipur - 795004, India

Imphal West
MANIPUR
795004
India 
Phone  9774262996  
Fax    
Email  jack2k49@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Ashem Jack Meitei 
Designation  Assistant Professor 
Affiliation  Regional Institute of Medical Sciences, Imphal West, Manipur 
Address  Department of Anaesthesiology, Regional Institute of Medical Sciences, Imphal West, Manipur - 795004, India


MANIPUR
795004
India 
Phone  9774262996  
Fax    
Email  jack2k49@gmail.com  
 
Source of Monetary or Material Support  
Department of Anaesthesiology, Regional Institute of Medical Sciences, Imphal Manipur,India. Pincode:795004 
 
Primary Sponsor  
Name  Muhamed Shakeel 
Address  Regional Institute of Medical Sciences, Imphal, Manipur 
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 Muhamed Shakeel  Regional Institute of Medical Sciences, Imphal West, Manipur  Elective surgery Operation theatre complex (OT 1-8), Department of Anaesthesiology, Regional Institute of Mediccal Sciences, Imphal West, Manipur.
Imphal West
MANIPUR 
9048606029

shakmd31@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 
Comparator Agent  Group A - 19ml of 0.5% ropivacaine + 0.5mcg/kg dexmedetomidine diluted in 1ml of Normal saline  Study participants will be randomized into two groups. Comparator group receiving 19ml of 0.5% ropivacaine + 0.5mcg/kg dexmedetomidine diluted in 1 ml Normal saline before surgery. 
Intervention  Group B - 19ml of 0.5% ropivacaine + 1mcg/kg dexmedetomidine diluted in 1ml of normal saline  Study participants will be randomized into two groups. Intervention group receiving 19ml of 0.5% ropivacaine + 1mcg/kg dexmedetomidine diluted in 1ml normal saline before surgery 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  1) American Society of Anaesthesiologist - Physical State (ASA - PS) grade I and II 
 
ExclusionCriteria 
Details  1) Patients having hypertension, diabetes mellitus, neuropathy, perioheral nerve injury.
2) Pregnancy and lactation
3) Patient on anticoagulants or bleeding disorder.
4) Hypersensitivity to amide group of local anaesthetic agents.
5) Patient refusal to procedure. 
 
Method of Generating Random Sequence   Permuted block randomization, fixed 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
Onset and duration of sensory and motor block (using hollmen scale and modified bromage scale)  From injection of study drug till the time patient feels pain (sensory) and able to move upper limb (motor) 
 
Secondary Outcome  
Outcome  TimePoints 
Duration of analgesia  From injection of study drug till pain complains of pain 
Hemodynamic parameters like systolic blood pressure, diastolic blood pressure, mean arterial pressure, heart rate, peripheral oxygen saturation)  From injection of study drug to upto 2 hours. 
 
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   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="1"
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   Regional anaesthesia techniques have advantages including excellent pain control, side effects, and shortened stay in post anaesthesia care unit. Ultrasound guided regional blocks are considered safer with better success rates. Supraclavicular block has high efficacy for providing anaesthesia in upper limb surgeries. Ropivacaine with lesser cardiac side effects is the preferred local anaesthetic agent. Dexmedetomidine is used to reduce the onset time, prolong the analgesic and motor blockade effect without systemic side effects and reduce total dose of local anaesthetic requirement.
Here, in our study we determine the duration of analgesia and compare the hemodynamic parameters with two different doses of dexmedetomidine with 0.5% ropivcaine. 
We also try to find any adverse reaction to the study drugs. A total of 60 patients undergoing upper limb surgeries will be divided into two groups - Group A and Group B by block randomisation. Group A will receive Ropivacaine 0.5% with 1ml of 0.5mcg/ kg dexmedetomidine and Group B will receive Ropivacaine 0.5% with 1ml of 1mcg/kg dexmedetomidine. Duration of analgesia, onset of sensory and motor blockade effect, time requirement of rescue analgesia will be studied.
Hemodynamic parameters and adverse effects will be recorded.
The findings and observations made during the entire study will be tabulated, graphically analysed and inference will be drawn.
 
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