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CTRI Number  CTRI/2025/11/097507 [Registered on: 17/11/2025] Trial Registered Prospectively
Last Modified On: 15/11/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia
Preventive 
Study Design  Other 
Public Title of Study   Pain control in adults undergoing knee replacement using two types of local anaesthetic injections with clonidine. 
Scientific Title of Study   Comparative Study Of Ropivacaine Vs Levobupivacaine With Clonidine In Ultrasound Guided Adductor Canal Block For Postoperative Analgesia In Total Knee Arthroplasty 
Trial Acronym  Nil 
Secondary IDs if Any  
Secondary ID  Identifier 
Nil  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Taranjot Singh 
Designation  Junior Resident 
Affiliation  Guru Gobind Singh Medical College Hospital  
Address  Department of Anesthesiology Guru Gobind Singh Medical College Hospital Faridkot Punjab India

Faridkot
PUNJAB
151203
India 
Phone  7889824320  
Fax    
Email  taranjotkahlon60@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Sarvjeet Kaur 
Designation  Professor and Head 
Affiliation  Guru Gobind Singh Medical College Hospital  
Address  Department of Anesthesiology Guru Gobind Singh Medical College Hospital Faridkot Punjab

Faridkot
PUNJAB
151203
India 
Phone  9915680508  
Fax    
Email  drsarvjeetk@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Sarvjeet Kaur 
Designation  Professor and Head 
Affiliation  Guru Gobind Singh Medical College Hospital  
Address  Department of Anesthesiology Guru Gobind Singh Medical College Hospital Faridkot Punjab


PUNJAB
151203
India 
Phone  9915680508  
Fax    
Email  drsarvjeetk@gmail.com  
 
Source of Monetary or Material Support  
Department of Anesthesiology Guru Gobind Singh Medical College Hospital Faridkot Punjab 151203 India 
 
Primary Sponsor  
Name  Guru Gobind Singh Medical College Hospital  
Address  Department of Anesthesiology Guru Gobind Singh Medical College Hospital Faridkot Punjab India  
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 
Taranjot Singh   Guru Gobind Singh Medical College Hospital   Department of Anesthesiology Guru Gobind Singh Medical College Hospital Faridkot Punjab India
Faridkot
PUNJAB 
7889824320

taranjotkahlon60@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Ethics Committee Guru Gobind Singh Medical College   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: M179||Osteoarthritis of knee, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Levobupivacaine   Participants will receive 20 mL of 0.25% levobupivacaine combined with clonidine (1 mcg/kg) administered as a single-shot, ultrasound-guided adductor canal block (ACB) preoperatively. This block will provide analgesia until the patient requires rescue analgesia, which marks the end of the intervention duration. 
Intervention  Ropivacaine   Participants will receive 20 mL of 0.25% ropivacaine combined with clonidine (1 mcg/kg) administered as a single-shot, ultrasound-guided adductor canal block (ACB) preoperatively. This block will provide analgesia until the patient requires rescue analgesia, which marks the end of the intervention duration. 
 
Inclusion Criteria  
Age From  40.00 Year(s)
Age To  75.00 Year(s)
Gender  Both 
Details  Patients aged between 40 to 75 years of either gender giving written willingness consent.

Patient belonging to American Society of Anaesthesiology class 1 and 2 and scheduled for elective orthopedic Total knee arthroplasty surgeries under spinal Anaesthesia. 
 
ExclusionCriteria 
Details  Patients having history of coagulation abnormalities chronic kidney diseases chronic liver diseases
Any history of allergy or contraindication to study drugs
Any contraindication for neuroaxial anaesthesia  
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant Blinded 
Primary Outcome  
Outcome  TimePoints 
Duration of postoperative analgesia, measured as the time from completion of the ultrasound-guided adductor canal block to the first request for rescue analgesia ( assessed using NRS pain score)  Immediately after adductor canal block  
 
Secondary Outcome  
Outcome  TimePoints 
Postoperative pain scores at rest & on movement using the Numerical Rating Scale (NRS) at 0,2,4,6,8,12, & 24 hours.
Total rescue analgesia consumption in the first 24 hours postoperatively
Incidence of adverse events ( nausea, vomiting, hypotension, bradycardia, block-related complications).
Patient satisfaction score at 24 hours post-block.
 
After every 2hour till 24 hours 
 
Target Sample Size   Total Sample Size="80"
Sample Size from India="80" 
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)   31/03/2025 
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 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   Adductor canal block is a regional anaesthesia technique increasingly used for postoperative analgesia in lower limb surgeries 
Ropivacaine is a long acting amide local anaesthetic agent with less cardiotoxic effect compared to bupivacaine 
Levobupivacaine show safer pharmacological profile with less cardiac and neurotoxic adverse effects
Clonidine is a frequently used adjuvant to local anaesthetic
This study aims to determine the efficacy of ropivacaine with clonidine vs levobupivacaine with clonidine for adductor canal block in total knee arthroplasty surgeries for postoperative analgesia
 
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