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CTRI Number  CTRI/2025/02/080423 [Registered on: 12/02/2025] Trial Registered Prospectively
Last Modified On: 11/02/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   A study to compare 3 different drug combination for post operative analgesia for patients undergoing knee surgeries 
Scientific Title of Study   A Randomized control Trail Comparing Post operative Analgesic Effect of Dexmeditomidine vs Nalbuphine as an Adjuvant with Ropivacaine in USG Guided Adductor Canal Block in Patients Undergoing Knee Surgeries 
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 T Shalini 
Designation  Postgraduate ( MD Anaesthesiology) 
Affiliation  SRM Medical College and Research Institute 
Address  B-BLOCK 2nd floor Department of anesthesiology SRM Medical college and Research Institute Kattankulathur Kancheepuram TAMIL NADU 603203 India

Kancheepuram
TAMIL NADU
621216
India 
Phone  9600826518  
Fax    
Email  shalinithiyagarajan99@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr K Karthik 
Designation  Professor of Department of Anaesthesiology 
Affiliation  SRM Institute Of Science and Technology 
Address  Room no:209, B-BLOCK, 2nd floor, Department of anesthesiology, SRM Medical college and Research Institute

Kancheepuram
TAMIL NADU
603203
India 
Phone  9884360796  
Fax    
Email  karthikkrishnamoorthy1981@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr K Karthik 
Designation  Professor of Department of Anaesthesiology 
Affiliation  SRM Institute Of Science and Technology 
Address  Room no:209, B-BLOCK, 2nd floor, Department of anesthesiology, SRM Medical college and Research Institute

Kancheepuram
TAMIL NADU
603203
India 
Phone  9884360796  
Fax    
Email  karthikkrishnamoorthy1981@gmail.com  
 
Source of Monetary or Material Support  
BBLOCK 2nd floor Department of anesthesiology SRM Medical college and Research Institute Kattankulathur Kancheepuram TAMIL NADU 603203 India 
 
Primary Sponsor  
Name  SRM MEDICAL COLLEGE AND RESEARCH INSTITUTE 
Address  B BLOCK 2nd floor Department of anesthesiology SRM Medical college and Research Institute Kattankulathur Kancheepuram TAMIL NADU 603203 India 
Type of Sponsor  Private 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 K Karthik  SRM MEDICAL COLLEGE AND RESEARCH INSTITUTE  B-BLOCK 2nd floor Department of anesthesiology SRM Medical college and Research Institute Kattankulathur Kancheepuram TAMIL NADU 603203 India
Kancheepuram
TAMIL NADU 
9600826518

shalinithiyagarajan99@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
SRM Institutional Ethics Committee- Students  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  ropivacaine with nalbuphine  ultrasound guided adductor canal block with ropivacaine (0.5% 20ml)with nalbuphine(10mg) and post operative pain assessed for the first 24 hours 
Intervention  ropivacaine with dexmeditomidine  ultrasound guided adductor canal nerve block with ropivacaine(0.5% 20ml) with dexmeditomidine(50mcg)and postoperative pain within the first 24 hours is asseseed 
Comparator Agent  ultrasound guided adductor canal block with plain ropivacaine  plain ropivacaine(0.5% 20ml)given and post operative pain assessed for the first 24 hours 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  Age 18-65
ASA PS 1-2
All patients undergoing knee surgeries.
Both sexes
 
 
ExclusionCriteria 
Details  Patient refusal
Contraindications to regional nerve block:
Cellulitis / infection at the local site
Coagulopathy
Allergy to local anaesthetic agents
Patients with pre existing nerve injury.
 
 
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 
Time to first rescue analgesia demand. If VAS score more than 3 Inj.paracetamol and if VAS 3-6 Inj. tramadol 100mg in 100ml NS.
 
1st hour,2nd hour,3rd hour,4th hour,5th hour,6th hour,12th hour,18th hour,24th hour 
 
Secondary Outcome  
Outcome  TimePoints 
Requirement of total analgesic doses in first 24hours.
VAS score for first 24hours
Early ambulation based on TUG TEST.
 
1st hour,2nd hour,3rd hour,4th hour,5th hour,6th hour,12th hour,18th hour,24th hour 
 
Target Sample Size   Total Sample Size="120"
Sample Size from India="120" 
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 4 
Date of First Enrollment (India)   22/02/2025 
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 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  

A total of 120 patients belonging to age group 18 to 65 years  , ASA class I and II scheduled for knee procedures will be prospectively studied. In this double-blinded randomized control trial,a total of 120 participants will be allocated into three groups -  Randomisation into 3 groups by computer generated randomisation  –Group D,Group N,GROUP R. GROUP D- Patients receive Inj. Ropivacaine 0.5% 20ml +Inj. Dexmedetomidine 50mcg/kg.GROUP N- Patients receive Inj. Ropivacaine 0.5% 20ml + Inj. Nalbuphine 10ml.Group R – Patients receive Inj.ropivacaine0.5% plain 20ml  +10ml of distilled water.Under ASP, spinal anesthesia given with 0.5% of bupivacaine(H) 3ml @L3-L4 space with Quincke 25g needle to the assigned group.Under ASP, Adductor canal block will be given to the assigned  group.Post operative pain will be assessed for the 1st 24 hours.Data collection will be done by observation and measurement of various parameters.

 
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