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CTRI Number  CTRI/2013/11/004174 [Registered on: 28/11/2013] Trial Registered Retrospectively
Last Modified On: 25/09/2023
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   A trial to study whether dexmedetomidine, a new anaesthetic drug added to local anaesthetic ropivacaine for blocking nerves supplying upper limb improves the quality of anaesthesia. 
Scientific Title of Study   To evaluate the effect of dexmedetomidine added to 0.5% ropivacaine for supraclavicular brachial plexus block on the onset time, duration of sensory, motor block and analgesia. 
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 Indira Gurajala 
Designation  Assistant Professor, Department of Anaesthesiology and Critical Care, 
Affiliation  Nizams Institute of Medical Sciences, Hyderabad. 
Address  1-9-485/2, Lalithanagar,Jamai Osmania, Hyderabad.

Hyderabad
ANDHRA PRADESH
500044
India 
Phone  07729932044  
Fax  091-40-23310076  
Email  indiradevraj@yahoo.co.in  
 
Details of Contact Person
Scientific Query
 
Name  Dr Indira Gurajala 
Designation  Assistant Professor, Department of Anaesthesiology and Critical Care, 
Affiliation  Nizams Institute of Medical Sciences, Hyderabad. 
Address  1-9-485/2, Lalithanagar,Jamai Osmania, Hyderabad.

Hyderabad
ANDHRA PRADESH
500044
India 
Phone  07729932044  
Fax  091-40-23310076  
Email  indiradevraj@yahoo.co.in  
 
Details of Contact Person
Public Query
 
Name  Dr Indira Gurajala 
Designation  Assistant Professor, Department of Anaesthesiology and Critical Care, 
Affiliation  Nizams Institute of Medical Sciences, Hyderabad. 
Address  1-9-485/2, Lalithanagar,Jamai Osmania, Hyderabad.

Hyderabad
ANDHRA PRADESH
500044
India 
Phone  07729932044  
Fax  091-40-23310076  
Email  indiradevraj@yahoo.co.in  
 
Source of Monetary or Material Support  
Institution –Nizams Institute of Medical Sciences, Hyderabad 
 
Primary Sponsor  
Name  NIZAMS INSTITUTE OF MEDICAL SCIENCES HYDERABAD 
Address  Nizams Institute of Medical Sciences, Hyderabad.  
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 
DrIndira Gurajala  orthopaedic operation theatre, Main operation theatre complex and postoperative ward no 9   Nizams Institute Of Medical Sciences, Hyderabad.
Hyderabad
ANDHRA PRADESH 
07729932044
091-40-23310076
indiradevraj@yahoo.co.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
NIMS Institutional Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  In patients undergoing upper limb orthopedic surgery,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  dexmedetomidine   dexmedetomidine ,50 micrograms(0.5 ml) added to 35 ml of 0.5% ropivacaine will be injected once around the nerves (brachial plexus)supplying the upper limb 
Comparator Agent  saline  0.5 ml of saline (placebo) is added to 35 ml of 0.5% ropivacaine for injection once around the nerves(brachial plexus) supplying the upper limb 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Inclusion criteria:
• Patients undergoing upperlimb orthopedic surgery under supraclavicular brachial plexus block and general anaesthesia.
• Age more than 18 years.
• ASA physical status 1&2
 
 
ExclusionCriteria 
Details  Exclusion criteria:
• Patients receiving adrenoreceptor agonist or antagonist therapy;
• those with a history of cardiac, respiratory, hepatic,or renal failure;
• patients with head injury and known psychiatric disordes
• and pregnant women were excluded. 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   On-site computer system 
Blinding/Masking   Participant, Investigator and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
To evaluate the effect of dexmedetomidine added to 0.5% ropivacaine for supraclavicular brachial plexus block on the onset time, duration of sensory, motor block and analgesia.  24 hrs 
 
Secondary Outcome  
Outcome  TimePoints 
The secondary objective is to evaluate whether dexmedetomidine added to 0.5% ropivacaine for supraclavicular brachial plexus block reduces the requirements of general anaesthetics.  24 hrs 
 
Target Sample Size   Total Sample Size="30"
Sample Size from India="30" 
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 4 
Date of First Enrollment (India)   05/08/2013 
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="1"
Days="15" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Closed to Recruitment of Participants 
Publication Details
Modification(s)  
The trial CTRI/2013/11/004174 is complete. The study titled "To evaluate the effect of dexmedetomidine added to 0.5% ropivacaine for supraclavicular brachial plexus block on the onset time, duration of analgesia, sensory block and motor block and its interaction with general anaesthesia." has been accepted for publication in Indian Journal of Anaesthesia. Thanking You Yours sincerely Indira Gurajala  
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

  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 - Any purpose.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [indiradevraj@yahoo.co.in].

  6. For how long will this data be available start date provided 01-05-2015 and end date provided 01-02-2020?
    Response - Beginning 3 months and ending 5 years following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary
Modification(s)  

Background and aims: The effect of perineural dexmedetomidine on the time to onset, quality and duration of motor block with ropivacaine has been equivocal and its interaction with general anaesthesia (GA) has not been reported. We assessed the influence of dexmedetomidine added to 0.5% ropivacaine on the characteristics of supraclavicular brachial plexus block and its interaction with GA.

Methods: In a randomised, double blind study, 36 patients scheduled for orthopaedic surgery on the upper limb under supraclavicular block and GA were divided into either R group (35 ml of 0.5% ropivacaine with 0.5 ml of normal saline [n - 18]) or RD group (35 mL of 0.5% ropivacaine with 50 μg dexmedetomidine [n - 18]). The onset time and duration of motor and sensory blockade were noted. The requirement of general anaesthetics was recorded.

Results: Both the groups were comparable in demographic characteristics. The time of onset of sensory block was not significantly different. The proportion of patients who achieved complete motor blockade was more in the RD group. The onset of motor block was earlier in group RD than group R (P < 0.05). The durations of analgesia, sensory and motor blockade were significantly prolonged in group RD (P < 0.00). The requirement of entropy guided anaesthetic agents was not different in both groups.

Conclusions: The addition of dexmedetomidine to 0.5% ropivacaine improved the time of onset, quality and duration of supraclavicular brachial plexus block but did not decrease the requirement of anaesthetic agents during GA.

Keywords: Dexmedetomidine; brachial plexus block; requirement of general anaesthetics.


 
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