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CTRI Number  CTRI/2025/08/092850 [Registered on: 12/08/2025] Trial Registered Prospectively
Last Modified On: 11/08/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A Study To Compare The Transversus Abdominis Plane Block and Erector Spinae Plane Block in Minimally Invasive Nephrectomy Surgeries 
Scientific Title of Study   A Randomoised,Prospective, Double Blinded Study To Compare The Efficacy Of Ultrasound Guided Transversus Abdominis Plane Block and Erector Spinae Plane Block in Minimally Invasive Nephrectomy 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  shanmugapriya g 
Designation  STUDENT 
Affiliation  SRM INSTITUTES FOR MEDICAL SCIENCES 
Address  A Block,21,DEPARTMENT OF ANAESTHESIOLOGY,NO 1 ,JAWAHARLAL NEHRU SALAI, VADAPALANI, CHENNAI, TAMIL NADU

Chennai
TAMIL NADU
600026
India 
Phone  6382766629  
Fax    
Email  gopalakrishnanshanmugapriya@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr.Thiyagarajan s 
Designation  SENIOR CONSULTANT, DEPARTMENT OF ANAESTHESIOLOGY  
Affiliation  SRM INSTITUTES FOR MEDICAL SCIENCES 
Address  A BLOCK ,21, DEPARTMENT OF ANAESTHESIOLOGY,NO 1 ,JAWAHARLAL NEHRU SALAI, VADAPALANI, CHENNAI, TAMIL NADU

Chennai
TAMIL NADU
600026
India 
Phone  9790930134  
Fax    
Email  anaes1879@yahoo.com  
 
Details of Contact Person
Public Query
 
Name  shanmugapriya g 
Designation  STUDENT 
Affiliation  SRM INSTITUTES FOR MEDICAL SCIENCES 
Address  A BLOCK,21,DEPARTMENT OF ANAESTHESIOLOGY,NO 1 ,JAWAHARLAL NEHRU SALAI, VADAPALANI, CHENNAI, TAMIL NADU

Chennai
TAMIL NADU
600026
India 
Phone  6382766629  
Fax    
Email  gopalakrishnanshanmugapriya@gmail.com  
 
Source of Monetary or Material Support  
SRM Institutes For Medical Sciences,NO 1 JAWAHARLAL NEHRU SALAI, VADAPALANI, CHENNAI, TAMIL NADU, 60002 
 
Primary Sponsor  
Name  SRM Institutes For Medical Sciences 
Address  NO 1 Jawaharlal Nehru Salai, Vadapalani,Chennai,TamilNadu, 60002 
Type of Sponsor  Private hospital/clinic 
 
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 SHANMUGAPRIYA G  SRM INSTITUTES FOR MEDICAL SCIENCES,  DEPARTMENT OF ANAESTHESIOLOGY,NO 1 JAWAHARLAL NEHRU SALAI, VADAPALANI,CHENNAI,TAMIL NADU, 600026
Chennai
TAMIL NADU 
06382766629

gopalakrishnanshanmugapriya@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
SRM INSTITUITIONAL ETHICS COMMITEE  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: C649||Malignant neoplasm of unspecifiedkidney, except renal pelvis,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  ERECTOR SPINAE PLANE BLOCK   To compare The Efficacy of Erector Spinae Plane Block In Minimally Invasive Nephrectomy Surgeries 
Intervention  Transversus Abdominis Plane Block  To compare The Efficacy of Transversus Abdominis Plane BlockIn Minimally Invasive Nephrectomy Surgeries 
 
Inclusion Criteria  
Age From  20.00 Year(s)
Age To  70.00 Year(s)
Gender  Both 
Details  1)ASA grade 1 and 2,Any gender ,Age 20 to 70 years ,BMI 18 to 30 ,Patients willing to participate in the study ,Patients admitted for minimally invasive nephrectomy surgery ,No history of allergy to Local anaesthetics
 
 
ExclusionCriteria 
Details  1)ASA grade 3, 4, 5,Pregnant and lactating mother,Age less than 20 years and more than 70 years,Obese individuals with BMI more than 30,Chronic history of Opioid abuse,History of allergy to Local anaesthetics,Patients not willing to participate in this study
 
 
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 
1)To observe intraoperative Remifentanil requirement and the pain score using Visual Analog Scale (VAS) score for first 24 hours,postoperative Tramadol requirement for first 24 hours   12 months 
 
Secondary Outcome  
Outcome  TimePoints 
1) To observe the incidence of hemodynamic disturbances during perioperative period
2) To observe the incidence of side effects of opioids such as postoperative nausea, vomiting, sedation and respiratory depression
 
12 months 
 
Target Sample Size   Total Sample Size="50"
Sample Size from India="50" 
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 2/ Phase 3 
Date of First Enrollment (India)   22/08/2025 
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 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   This study is a randomised ,prospective,double blinded comparing the efficacy of ultrasound guided Transversus Abdominis Plane Block and Erector Spinae Plane Block in Minimally Invasive Nephrectomy Surgeries.Primary outcomes will be intraoperative Remifentanil requiremet,the pain score using Visual Analog Scale (VAS) score for first 24 hours,the postoperative Tramadol requirement for first 24 hours.secondary outcomes will be the incidence of hemodynamic disturbances during perioperative period,the incidence of side effects of opioids such as postoperative nausea, vomiting, sedation and respiratory depression. 
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