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CTRI Number  CTRI/2025/09/094011 [Registered on: 01/09/2025] Trial Registered Prospectively
Last Modified On: 29/08/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Multiple Arm Trial 
Public Title of Study   EFFICACY OF INTRAPERITONEAL INSTILLATION OF ROPIVACAINE WITH DEXMEDETOMIDINE VERSUS BUPIVACAINE WITH DEXMEDETOMIDINE FOR POST OPERATIVE ANALGESIA IN LAPAROSCOPIC CHOLECYSTECTOMY; RANDOMISED CONTROLLED TRIAL 
Scientific Title of Study   A Randomized Controlled Trial to Evaluate the Efficacy of Intraperitoneal Instillation of Ropivacaine with Dexmedetomidine versus Bupivacaine with Dexmedetomidine for Postoperative Analgesia in Patients Undergoing Laparoscopic Cholecystectomy" 
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 Prakriti Choudhury 
Designation  Post Graduate Trainee 
Affiliation  Pradyumna Bal Memorial Hospital, Kalinga Institute of Medical Sciences  
Address  Department of Anaesthesiology, Kalinga Institute of Medical Sciences, KIIT deemed to be university, Bhubaneswar; Khordha; Orissa; 751024; India

Khordha
ORISSA
751024
India 
Phone  9706126777  
Fax    
Email  2487018@kims.ac.in  
 
Details of Contact Person
Scientific Query
 
Name  Prof. Dr. Mousumi Das 
Designation  Professor 
Affiliation  Pradyumna Bal Memorial Hospital, Kalinga Institute of Medical Sciences  
Address  Department of Anaesthesiology, Kalinga Institute of Medical Sciences, KIIT deemed to be university, Bhubaneswar; Khordha; Orissa; 751024; India

Khordha
ORISSA
751024
India 
Phone  9937928790  
Fax    
Email  mousumi.das1503@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Prakriti Choudhury 
Designation  Post Graduate Trainee 
Affiliation  Pradyumna Bal Memorial Hospital, Kalinga Institute of Medical Sciences  
Address  Department of Anaesthesiology, Kalinga Institute of Medical Sciences, KIIT deemed to be university, Bhubaneswar; Khordha; Orissa; 751024; India

Khordha
ORISSA
751024
India 
Phone  9706126777  
Fax    
Email  2487018@kims.ac.in  
 
Source of Monetary or Material Support  
KALINGA INSTITUTE OF MEDICAL SCIENCES 
 
Primary Sponsor  
Name  Dr Prakriti Choudhury 
Address  Department of Anaesthesiologist, KIIT Deemed to be university, Bhubaneswar, PIN 751024 university,Bhubaneswar,PIN:751024  
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 Prakriti Choudhury  Pradyumna Bal Memorial Hospital, Kalinga Institute of Medical Sciences   Department of Anaesthesia Kalinga Institute of Medical Sciences,Bhubaneswar,751024 Khordha ORISSA
Khordha
ORISSA 
9706126777

2487018@kims.ac.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTIONAL ETHICS COMMITTEE KALINGA INSTITUTE OF MEDICAL SCIENCES  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  Intraperitoneal instillation of Bupivacaine 0.25% (35 mL) with Dexmedetomidine 0.5 mcg/kg  Route: Intraperitoneal Timing: At the end of surgery, before trocar removal Frequency: Single administration Duration: One-time administration during surgery Group: Intervention Group (Group 1) Administered by: Surgeon Blinding: Patient and primary investigator are blinded Group 2: Will receive intraperitoneal 35 mL of 0.25% Bupivacaine with 0.5mcg/kg dexmedetomidine 
Comparator Agent  Intraperitoneal instillation of Bupivacaine 0.25% (35 mL) with Dexmedetomidine 0.5mcg/kg  Route: Intraperitoneal Timing: At the end of surgery, before trocar removal Frequency: Single administration Duration: One-time administration during surgery Group: Comparator Group (Group 2) Administered by: Surgeon Blinding: Patient and primary investigator are blinded 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  ASA grade I or II

Age between 18 and 65
years

Hemodynamically stable

Undergoing elective
laparoscopic
cholecystectomy

Provided written informed
consent 
 
ExclusionCriteria 
Details  Emergency procedures

Significant comorbidities
(neurological, cardiac,
respiratory, metabolic,
hepatic, renal)

Coagulation disorders

Known allergy to study
drugs 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant, Investigator, Outcome Assessor and Date-entry Operator Blinded 
Primary Outcome  
Outcome  TimePoints 
The time duration (in hours)
from the completion of
surgery to the time patient
requested for first rescue
analgesic medication. 
From the end of surgery (trocar removal) until the first patient request for rescue analgesia, within the first 24 hours postoperatively. 
 
Secondary Outcome  
Outcome  TimePoints 
1 .The total rescue analgesic
dose requirements in first 24
hours post operatively.

2. The intensity of pain using
Visual Analog Scale (VAS) score

Immediately postoperatively

Hourly up to first 4
hours(1,2,3,4 hrs)

Every 4 hours upto 12
hours(8,12 hrs)

At 24 hours

3.Heart Rate(bpm) &
MAP(mmHg) (Observation time
same as vas) 
Immediately postoperatively

Hourly up to first 4
hours(1,2,3,4 hrs)

Every 4 hours upto 12
hours(8,12 hrs)

At 24 hours 
 
Target Sample Size   Total Sample Size="92"
Sample Size from India="92" 
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)   30/09/2025 
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="2"
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  

This randomized, double-blind clinical trial aims to compare the analgesic efficacy of intraperitoneal instillation of 0.25% bupivacaine versus 0.25% ropivacaine, both combined with dexmedetomidine (0.5 mcg/kg), in patients undergoing elective laparoscopic cholecystectomy. Conducted at KIMS, Bhubaneswar from August 2025 to July 2027, the study includes 92 ASA I/II patients aged 18–65 years. The primary outcome is the time to first rescue analgesia; secondary outcomes include total analgesic requirement, VAS pain scores, heart rate, and MAP over 24 hours. The study follows standardized anesthesia protocols and pain assessments. 

 
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