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CTRI Number  CTRI/2026/02/104923 [Registered on: 26/02/2026] Trial Registered Prospectively
Last Modified On: 25/02/2026
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Comparing the effect of two drugs in reducing morphine requirement in adult patients undergoing robotic operation in leg-up head-down position 
Scientific Title of Study   Comparison of Target controlled infusions of dexmedetomidine versus propofol for robot-assisted surgery in steep Trendelenberg position: A randomised clinical 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  Dr Shagun Bhatia Shah 
Designation  Senior Consultant Anaesthesiologist 
Affiliation  Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi 
Address  Department of Anaesthesia;Third Floor; Major Operation Theatre Division; Consultants Room; Rajiv Gandhi Cancer Institute and Research Centre Sector-5 ; Rohini

North West
DELHI
110085
India 
Phone  09891769779  
Fax    
Email  drshagun_2010@rediffmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Shagun Bhatia Shah 
Designation  Senior Consultant Anaesthesiologist 
Affiliation  Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi 
Address  Department of Anaesthesia;Third Floor; Major Operation Theatre Division; Consultants Room; Rajiv Gandhi Cancer Institute and Research Centre Sector-5 ; Rohini


DELHI
110085
India 
Phone  09891769779  
Fax    
Email  drshagun_2010@rediffmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Shagun Bhatia Shah 
Designation  Senior Consultant Anaesthesiologist 
Affiliation  Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi 
Address  Department of Anaesthesia;Third Floor; Major Operation Theatre Division; Consultants Room; Rajiv Gandhi Cancer Institute and Research Centre Sector-5 ; Rohini


DELHI
110085
India 
Phone  09891769779  
Fax    
Email  drshagun_2010@rediffmail.com  
 
Source of Monetary or Material Support  
Rajiv Gandhi Cancer Institute and Research Centre, Sector 5, Rohini, Delhi 110085, India 
 
Primary Sponsor  
Name  Dr Shagun Bhatia Shah  
Address  Department of Anaesthesia;Third Floor; Major Operation Theatre Division; Consultants Room; Rajiv Gandhi Cancer Institute and Research Centre Sector-5 ; Rohini 
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 Shagun Bhatia Shah  Rajiv Gandhi Cancer Institute and Research Centre   Department of Anaesthesia;Third Floor; Major Operation Theatre Division; Consultants Room; Rajiv Gandhi Cancer Institute and Research Centre Sector-5 ; Rohini DELHI
North West
DELHI 
09891769779

drshagun_2010@rediffmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Review Board of Rajiv Gandhi Cancer Institute and Research Centre, Delhi  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  Target controlled infusion of dexmedetomidine   During robot-assisted surgery in steep Trendelenberg position, Medcaptain infusion pump shall be used to administer dexmedetomidine after selecting the Hannivoort pharmacokinetic model, entering the age, gender, weight and height of the patient, with effect site concentration set at 1-2ng/ml, titrated to bispectral index 40-60.  
Comparator Agent  Target controlled infusion of propofol   During robot-assisted surgery in steep Trendelenberg position, Medcaptain infusion pump shall be used to administer propofol after selecting the Eleveld pharmacokinetic model, entering the age, gender, and weight of the patient, with effect site concentration set at 2-4 µg/ml titrated to bispectral index 40-60.  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  70.00 Year(s)
Gender  Both 
Details  Weighing 45-80kg
Posted for robot-assisted surgery in steep Trendelenberg position 
 
ExclusionCriteria 
Details  Refusal to give consent
Egg allergy
Soy allergy
Raised intracranial pressure
Bradyarrhythmia
Deranged LFT
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Total opioid requirement   5min after surgery 
 
Secondary Outcome  
Outcome  TimePoints 
Total sevoflurane consumption  At the end of surgery 
Numeric Rating Scale score for pain  2h, 4h, 6h, 8h, 12h, and 24h post surgery 
Heart rate  Baseline
Attaining effect site drug concentration
Intubation
5 min post intubation
Pneumoperitoneum
After 1min, 1h, 2h, 3h in Steep Trendelenberg position
1 min after supination 
Mean arterial pressure  Baseline
Attaining effect site drug concentration
Intubation
5 min post intubation
Pneumoperitoneum
After 1min, 1h, 2h, 3h in Steep Trendelenberg position
1 min after supination 
Perfusion index  Baseline
Attaining effect site drug concentration
Intubation
5 min post intubation
Pneumoperitoneum
After 1min, 1h, 2h, 3h in Steep Trendelenberg position
1 min after supination 
Optic nerve sheath diameter  Baseline
Attaining effect site drug concentration
Intubation
5 min post intubation
Pneumoperitoneum
After 1min, 1h, 2h, 3h in Steep Trendelenberg position
1 min after supination 
Richmond agitation sedation score   2h, 4h, 6h, 8h, 12h, and 24h post surgery 
Post operative nausea and vomiting  2h, 4h, 6h, 8h, 12h, and 24h post surgery 
Length of surgical intensive care unit stay  Shifting patient to ward orders 
Total study drug consumption  At the end of surgery 
Complications  Intraoperative period
Postoperative period 
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
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)   18/03/2026 
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="0"
Months="8"
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 - YES
  1. What data in particular will be shared?
    Response - Individual participant data that underlie the results reported in this article, after de-identification (text, tables, figures, and appendices).

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response -  Statistical Analysis Plan
    Response - Informed Consent Form
    Response - Clinical Study Report

  3. Who will be able to view these files?
    Response - Researchers who provide a methodologically sound proposal.

  4. For what types of analyses will this data be available?
    Response - To achieve aims in the approved proposal.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [drshagun_2010@rediffmail.com].

  6. For how long will this data be available start date provided 08-08-2027 and end date provided 07-08-2030?
    Response - Beginning 9 months and ending 36 months following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary   This prospective, interventional, single-centred, parallel arm, randomised controlled study aims to compare a target controlled infusion of dexmedetomidine with a target controlled infusion of propofol for an opioid sparing effect during robot-assisted surgery in steep Trendelenberg position at doses that maintain surgical depth of anesthesia (bispectral index 40-60). The study shall include 60 adult ASA I-II patients of either sex, aged 18-70 years,  weighing 45-80 kg, undergoing robot-assisted surgery in steep Trendelenberg position. Patients who refuse to give consent, have egg allergy, soyabean allergy, bradyarrhythmias, raised intracranial pressure, glaucoma, or deranged hepatorenal function tests shall be excluded from the study. The study spanning 8 months shall be conducted at Rajiv Gandhi Cancer Institute and Research Centre, Delhi. Our primary outcome measure would be the difference in intraoperative opioid consumption between the two groups. Our secondary outcome measures would be the intraoperative sevoflurane consumption, the numeric rating scale score for pain, the Richmond agitation-sedation score, and postoperative nausea vomiting at 2h, 4h, 6h, 8h, 12h, and 24h post surgery, the heart rate, mean arterial pressure, perfusion index, and optic nerve sheath diameter measured at baseline, total study drug consumed intraoperatively, length of surgical intensive unit stay, and any complications in the intraoperative period and postoperative period. 
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