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CTRI Number  CTRI/2018/03/012327 [Registered on: 05/03/2018] Trial Registered Retrospectively
Last Modified On: 28/02/2018
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   The effect of Dexmedetomidine on recovery after General Anaesthesia- a randomized controlled study 
Scientific Title of Study   Time course of psychomotor recovery after intravenous dexmedetomidine infusion as a part of balanced anaesthetic technique: A randomized, double-blind study 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Ayyappan C 
Designation  Junior resident 
Affiliation  JIPMER 
Address  Room no:301, Harvey house 2, JIPMER hostel complex, JIPMER, Puducherry
Room no:301, Harvey house 2, JIPMER hostel complex, JIPMER, Puducherry
Pondicherry
PONDICHERRY
605006
India 
Phone  9894696456  
Fax    
Email  ayyappan.ibu@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Sandeep Kumar Mishra 
Designation  Additional Professor & Head 
Affiliation  JIPMER 
Address  Department of Anaesthesiology & Critical Care, Jawaharlal Institute of Postgraduate Medical Education & Research, Dhanvantri nagar
Department of Anaesthesiology & Critical Care, Jawaharlal Institute of Postgraduate Medical Education & Research, Dhanvantri nagar
Pondicherry
PONDICHERRY
605006
India 
Phone  9344668104  
Fax  91413-2296161  
Email  jipmermishra@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Ayyappan C 
Designation  Junior resident 
Affiliation  JIPMER 
Address  Room no:301, Harvey house 2, JIPMER hostel complex, JIPMER, Puducherry
Room no:301, Harvey house 2, JIPMER hostel complex, JIPMER, Puducherry
Pondicherry
PONDICHERRY
605006
India 
Phone  9894696456  
Fax    
Email  ayyappan.ibu@gmail.com  
 
Source of Monetary or Material Support  
Jawaharlal Institute of Postgraduate Medical Education & Research, Dhanvantri nagar, Puducherry 605006, India 
 
Primary Sponsor  
Name  Jawaharlal Institute of Postgraduate Medical Education Research 
Address  Dhanvantri nagar, Puducherry 605006, Puducherry district, India 
Type of Sponsor  Research institution and hospital 
 
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 Ayyappan C  Jawaharlal Institute of Postgraduate Medical Education & Research  Department of Anaesthesiology, Second floor, Old hospital building, Jawaharlal Institute of Postgraduate Medical Education & Research,Dhanvantri Nagar, Gorimedu, Puducherry 605006
Pondicherry
PONDICHERRY 
9894696456

ayyappan.ibu@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
JIPMER Institute ethics committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  Patients undergoing elective surgery under general anaesthesia of expected duration less than 2 hours,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  DEXMEDETOMIDINE  Dexmedetomidine was diluted in 50 ml of 0.9% saline as 2µg/ml concentration and loaded in an infusion pump. After induction of general anaesthesia and intubation, all participants received a loading dose of 0.5 ml/kg over 10 minutes & a maintenance infusion of 0.25 ml/kg/hr. Infusion was stopped during skin closure at the end of surgery. 
Comparator Agent  Normal saline  0.9% saline was loaded in 50 ml syringe and loaded in a infusion pump. After induction of general anaesthesia and intubation, all participants received a loading dose of 0.5 ml/kg over ten minutes & a maintenance infusion of 0.25 ml/kg/hr. Infusion was stopped during skin closure at the end of surgery.  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  50.00 Year(s)
Gender  Both 
Details  ASA 1 & 2 patients undergoing elective surgery of expected duration less than 2 hrs under general anaesthesia 
 
ExclusionCriteria 
Details  Patients refusing consent, known history of psychiatric illness, chronic drug or alcohol abuse, known hypersensitivity to drugs used, family history of malignant hyperthermia, significant cardiopulmonary, hepatic or renal disease, pregnant and breast feeding women, hypertensive patients not on any treatment or those treated with alpha or beta blockers and patients on concurrent sedative medications 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
Psychomotor function was assessed by Trieger dot test (TDT) and Digit symbol substitution test (DSST).  Both the tests were done pre-operatively (baseline), 30 minutes, 60 minutes, 90 minutes and 120 minutes after extubation.  
 
Secondary Outcome  
Outcome  TimePoints 
Total opioid requirement  Fentanyl 1 µg/kg was supplemented whenever there was increase in patients heart rate or blood pressure by 30% from baseline in both the groups during surgery  
 
Target Sample Size   Total Sample Size="90"
Sample Size from India="90" 
Final Enrollment numbers achieved (Total)= "90"
Final Enrollment numbers achieved (India)="90" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   16/04/2015 
Date of Study Completion (India) 06/04/2016 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="2"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details    
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Brief Summary   After informed consent, patients fulfilling the inclusion and exclusion criteria will be randomized to two groups by computer generated random numbers. Pre operatively, psychomotor function of the patient will be assessed with TDT and DSST. Trieger dot test consists of joining 30 dots with a line to form a figure within a time limit of 60 seconds. It is analyzed by number of dots missed, maximum distance of dots missed and average number of dots missed. DSST consists of matching digits with their corresponding symbol within a time limit. The digits along with the corresponding symbols will be located in a legend given at the top of the page. 9 such digits will be assigned symbols in the legend. It is analyzed by the number of digits correctly matched with the corresponding symbols within 90 seconds. On the day before surgery, both the tests will be done thrice to familiarize it to the patient and fourth test will be taken as the baseline psychomotor evaluation for that patient. In each of these patients, after attaching the routine monitors and recording baseline parameters, anaesthesia will be induced with Propofol (up to 2.5 mg/kg) and Fentanyl (2µg/kg). Vecuronium (0.1mg/kg) will be given in both groups and trachea intubated after 3 minutes. Dexmedetomidine will be diluted to 2µg/ml in a total volume of 50 ml and will be blinded against an identical volume of saline. After intubation, each patient’s receive a loading dose of 0.5 ml/kg over 10 minutes & a maintenance infusion of 0.25ml/kg/hr. Anesthesia will be maintained by nitrous oxide 67% in oxygen and sevoflurane whose MAC value will be adjusted to maintain an entropy value of 40 - 60. Supplemental fentanyl will be given as clinically indicated. Fentanyl will not be administered within 30 min of the end of surgery. Inhalational agents and infusions will be stopped at the time of skin closure. TDT and DSST will be conducted at intervals of 30 minutes, 60 minutes, 90 minutes and 120 minutes after the end of the surgery. The clinician performing the postoperative psychomotor analysis would be unaware of the drug that had been administered to the patient. 
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