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CTRI Number  CTRI/2025/08/093360 [Registered on: 20/08/2025] Trial Registered Prospectively
Last Modified On: 16/08/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A study to compare the effect of intrathecal 0.75 (H) Ropivacaine and 0.5 %(H) Bupivacaine in orthopaedic patients undergoing lower limb surgeries under spinal anesthesia  
Scientific Title of Study   A Prospective double blind randomised study to compare the effect of intrathecal 0.75 (H) Ropivacaine and 0.5 %(H) Bupivacaine in orthopaedic patients undergoing lower limb surgeries under subarachnoid block 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Neetiksha 
Designation  Senior Resident 
Affiliation  Pt JLNGMC ,chamba, HP 
Address  Deptt of anesthesia Pt JLNGMC chamba HP

Chamba
HIMACHAL PRADESH
176310
India 
Phone  9816200698  
Fax    
Email  neetikshasingh@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Neetiksha 
Designation  Senior Resident 
Affiliation  Pt JLNGMC ,chamba, HP 
Address  Deptt of anesthesia Pt JLNGMC chamba HP

Chamba
HIMACHAL PRADESH
176310
India 
Phone  9816200698  
Fax    
Email  neetikshasingh@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Neetiksha 
Designation  Senior Resident 
Affiliation  Pt JLNGMC ,chamba, HP 
Address  Deptt of anesthesia Pt JLNGMC chamba HP

Chamba
HIMACHAL PRADESH
176310
India 
Phone  9816200698  
Fax    
Email  neetikshasingh@gmail.com  
 
Source of Monetary or Material Support  
NIL 
 
Primary Sponsor  
Name  Neetiksha 
Address  Pt JLNGMC Chamba ,HP 
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 
Neetiksha  Operation theatre, department of anaesthesia , Pt JLNGMC Chamba  Department of anesthesia, Pt JLNGMC chamba
Chamba
HIMACHAL PRADESH 
9816200698

neetikshasingh@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional ethics committee, GMC , chamba  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  0.5% H Bupivacaine  Subarachnoid block using fixed dose of 0.5% H Bupivacine 
Intervention  0.75% H Ropivacaine  Subarachnoid block using fixed dose 0.75 %H Ropivacaine 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Patient for orthopaedic lower limb surgery
ASAI and II
BMI less than 30kg per metre sq
Height in between 150 to 180 cm 
 
ExclusionCriteria 
Details  Patient not giving cons
ASA III or more
Contraindication for SAB
SAB converted into GA 
 
Method of Generating Random Sequence   Coin toss, Lottery, toss of dice, shuffling cards etc 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
Onset and duration of sensory block
Onset and duration of motor block
Two segments dermatome regression time for sensory blockade 
1 year 
 
Secondary Outcome  
Outcome  TimePoints 
Time of first requirement of rescue analgesia
Haemodynamic parameters bp and hr
Adverse effects hypotension, bradycardia, respiratory depression, shivering 
1 year 
 
Target Sample Size   Total Sample Size="40"
Sample Size from India="40" 
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)   30/08/2025 
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="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   Study to compare the clinical efficacy , safety, hemodynamic effects and complications of hyperbaric fixed intrathecal dose of 0.5 % H bupivacaine and 0.75 % H ropivacaine in patients undergoing lower limb orthopaedic surgies 
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