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CTRI Number  CTRI/2025/08/093575 [Registered on: 25/08/2025] Trial Registered Prospectively
Last Modified On: 22/08/2025
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 comparing two types of nerve blocks (quadratus lumborum vs transversus abdominis plane) to control pain after cesarean section 
Scientific Title of Study   A Comparative Study Of the Analgesics Efficacy of Ultrasound-Guided Quadratus Lumborum Block(QL) VS Transversus Abdominis Plane (TAP)Block For Patients Undergoing Elective Caesarean Section In a Tertiary Care Hospital A Prospective Randomised Double Blinded Study 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Pratheeksha Ballal 
Designation  Postgraduate student  
Affiliation  Shri Sathya sai medical college and research institute  
Address  Department of Anaesthesiology 2nd floor ,hospital block Shri Sathya sai medical college and research institute Ammapettai Kancheepuram Tamil nadu India
Department of Anaesthesiology 2nd floor , Hospital block Shri Sathya sai medical college and research institute Ammapettai Kancheepuram Tamil nadu India
Kancheepuram
TAMIL NADU
603108
India 
Phone  9448965734  
Fax    
Email  ballalpratheekshaballal@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Prof. Dr Dilip Kumar. G 
Designation  HOD and Proffesor  
Affiliation  Shri Sathya sai medical college and research institute  
Address  Department of Anaesthesiology 2nd floor , Hospital block Shri Sathya sai medical college and research institute Ammapettai Kancheepuram Tamil nadu India
Department of anaesthesiology 2nd floor , Hospital block Shri Sathya sai medical college and research institute Ammapettai Kancheepuram Tamil nadu India
Kancheepuram
TAMIL NADU
603108
India 
Phone  9094940243  
Fax    
Email  dilipko@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Pratheeksha Ballal 
Designation  Postgraduate student 
Affiliation  Shri Sathya sai medical college and research institute  
Address  Department of Anaesthesiology 2nd floor , Hospital block Shri Sathya sai medical college and research institute Ammapettai Kancheepuram Tamil nadu India
Department of Anaesthesiology 2nd floor , Hospital block Shri Sathya sai medical college and research institute Ammapettai Kancheepuram Tamil nadu India
Kancheepuram
TAMIL NADU
603108
India 
Phone  9448965734  
Fax    
Email  ballalpratheekshaballal@gmail.com  
 
Source of Monetary or Material Support  
Shri Sathya Sai Medical college and research institute  
 
Primary Sponsor  
Name  Pratheeksha Ballal 
Address  SSSMCRI womens hostel Shri Sathya Sai Medical College And Research Institute Ammapettai Kancheepuram Tamil Nadu India 
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 Pratheeksha Ballal  Shri Sathya Sai Medical college and Research institute   Department of Anaesthesiology 2nd floor , hospital block ,Shri Sathya Sai Medical college and Research Institute
Kancheepuram
TAMIL NADU 
09448965734

ballalpratheekshaballal@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Comittee  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  Quadratus Lumborum Block   20ml of 0.25percentage BUPIVACAINE injected using ultrasound guidance  
Comparator Agent  Transversus Abdominis Plane block   20ml of 0.25percentage of BUPIVACAINE injected using ultrasound guidance and compared for analgesics efficacy  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  40.00 Year(s)
Gender  Female 
Details  1.Patients falling under ASA physical status I and II
2.Patients under the Age 18 to 40 years
3.Patient with BMI of18 to 35
 
 
ExclusionCriteria 
Details  1.Patients Allergic to local anaesthetics
2.Patients with Seizure disorders
3.Patients with Coagulopathy or anticoagulant therapy
4.Patient with Infection at injection site
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   An Open list of random numbers 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
Postoperative pain score using Visual Analogue Scale (VAS) at rest and movement over 24 hours 
Pain score (VAS at rest and on movement) at 1, 4, 8, 12, and 24 hours postoperatively 
 
Secondary Outcome  
Outcome  TimePoints 
NIL  NIL 
 
Target Sample Size   Total Sample Size="70"
Sample Size from India="70" 
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)   20/09/2025 
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 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   This study is a prospective randomized double blinded controlled trial being conducted at Sri Sathya Sai Medical College and Research Institute. It aims to compare the analgesic efficacy of ultrasound guided quadratus lumborum block and transversus abdominis plane block in women aged 18 to 40 years with ASA physical status I or II undergoing elective caesarean section under spinal anaesthesia. A total of 70 participants will be randomized into two groups of 35 each. Group QL will receive 20 ml of 0.25 percent bupivacaine bilaterally in the quadratus lumborum block and Group TAP will receive 20 ml of 0.25 percent bupivacaine bilaterally in the transversus abdominis plane block. The primary objective is to compare the duration of effective postoperative analgesia between the two groups using visual analogue scale scores, while secondary objectives include assessing the time to first rescue analgesia, total analgesic consumption, and adverse events. Institutional ethics committee approval has been obtained and written informed consent will be taken from all participants. 
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