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CTRI Number  CTRI/2014/10/005148 [Registered on: 28/10/2014] Trial Registered Prospectively
Last Modified On: 28/05/2015
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug
Surgical/Anesthesia 
Study Design  Non-randomized, Multiple Arm Trial 
Public Title of Study   Study to check the effect of drug called Dexmedetomidine on blood flow regulation to brain in patients having brain tumour 
Scientific Title of Study   Effect of Dexmedetomidine on cerebral blood flow auto-regulation in patients with intracranial tumours. 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  ARULVELAN 
Designation  Assistant professor 
Affiliation  Sree Chitra tirunal institute for medical sccience and technology 
Address  Assistant professor, Neuroanesthesiology, Sri chitra tirunal institute for medical science and technology, medical college post, thiruvananthapuram
44, Avittom road residents association, kumarapuram, trivandrum, kerala.
Thiruvananthapuram
KERALA
695011
India 
Phone  9048842282  
Fax  04712446433  
Email  drarulvelan@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  MANIKANDAN S 
Designation  Additional professor 
Affiliation  Sree Chitra tirunal institute for medical sccience and technology 
Address  Additional professor, Neuroanesthesiology, Sri chitra tirunal institute for medical science and technology, medical college post, thiruvananthapuram
B-10, staff quarters, Sree chitra institute, kumarapuram, trivandrum, kerala
Thiruvananthapuram
KERALA
695011
India 
Phone  9446334711  
Fax  04712446433  
Email  kanmanisethu@gmail.com  
 
Details of Contact Person
Public Query
 
Name  ARULVELAN 
Designation  Assistant professor 
Affiliation  Sree Chitra tirunal institute for medical sccience and technology 
Address  Assistant professor, Neuroanesthesiology, Sri chitra tirunal institute for medical science and technology, medical college post, thiruvananthapuram
44, Avittom road residents association, kumarapuram, trivandrum, kerala
Thiruvananthapuram
KERALA
695011
India 
Phone  9048842282  
Fax  04712446433  
Email  drarulvelan@gmail.com  
 
Source of Monetary or Material Support  
SREE CHITRA TIRUNAL INSTITUTE FOR MEDICAL SCIENCE AND TECHNOLOGY 
 
Primary Sponsor  
Name  Sri Chitra Tirunal Institute for Medical Science and Technology 
Address  Sri Chitra Tirunal Institute for Medical science and Technology, medical college post, ulloor, thirvananthapuram. PIN 695011 
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 
Arulvelan  Sri chitra tirunal institute for medical science and technology  Room no 404, Department of anesthesiology, Neurosurgical complex, Sri chitra tirunal institute for medical science and technology, medical college post ulloor, thiruvananthapuram
Thiruvananthapuram
KERALA 
9048842282

drarulvelan@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
institutional ethics comittee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  neurologically stable patients,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Patients with glial neoplasm  DEXMEDETOMIDINE will be given as infusion 1 microgram/kg over 10 minutes. (single dosage) 
Comparator Agent  patients with no pathology in brain  DEXMEDETOMIDINE will be given as infusion - 1 microgram/Kg over 10 minutes. (single dosage) 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  40.00 Year(s)
Gender  Both 
Details  two groups (15 patients in each group)
Group I - patients with unilateral Glioma, Glascow coma scale 15, American society of anesthesiology Grading 1 and 2.
Group II - patients having no intracranial pathology ( patients posted for lumbar and thoracic spinal cord surgeries (laminectomy, discectomy), American society of anesthesiology Grading 1 and 2. 
 
ExclusionCriteria 
Details  Patient refusal, American society of Anesthesiology (ASA) class 3 and above, Age less than 18 years and more than 35 years, Preoperative Glasgow coma scale (GCS) <15, Intracranial vascular abnormalities, Documented cases of Carotid stenosis, atherosclerosis, Infra tentorial / posterior fossa tumours, Emergency surgery, Preoperative heart rate <50 bpm, Systemic hypertension stage III & above, Heart block, Known allergy to Dexmedetomidine, Patient on beta blockers, Coronary artery disease, Left ventricular dysfunction,Pregnant or Nursing woman.
Antihypertensive medication with alpha-methyldopa, clonidine or other a2-adrenergic agonist, Vascular pathology ( Plaque, calcification, narrowing, stenosis, abnormal flow pattern ) identified during pre-induction sonography, Difficulty in localizing intracranial vasculature by TCCDI, Abnormal bone window, Participation in another drug study during the preceding 1 month period.
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
effect of dexmedetomidine on cerebral vascular autoregulation  immediately after completion of Dexmedetomidine infusion  
 
Secondary Outcome  
Outcome  TimePoints 
cerebral hemodynamics, and cerebral vascular resistance  immediately after infusion of Dexmedetomidine  
 
Target Sample Size   Total Sample Size="30"
Sample Size from India="30" 
Final Enrollment numbers achieved (Total)= ""
Final Enrollment numbers achieved (India)="" 
Phase of Trial   Phase 4 
Date of First Enrollment (India)   03/11/2014 
Date of Study Completion (India) Date Missing 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="0"
Months="2"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
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  

Informed consent will be taken from Patients satisfying inclusion criteria. Consenting patients will be included in the study protocol.

Patient will be shifted in to operating room. Monitors will be attached and baseline HR, NIBP, SpO2, EtCO2  will be recorded.

Ultrasound scan ( grey scale & Doppler ) of  bilateral carotid arteries to rule out plaque, stenosis or other flow limiting lesions.

 

Under Lignocaine (2%) skin infiltration I.V access and arterial access will be obtained.

baseline analysis :

·         TCCDI analysis of Right  and left Middle cerebral artery flow velocity

·         Baseline flow velocity for 5 seconds

·         Flow velocity Compression of Rt. Side carotid artery (  3 sec )

·         Flow velocity  After release of compression for 5 seconds

 

· 

 

infusion of  Inj. Dexmedetomidine 1 mcg/Kg/ 10 min by infusion pump.

Continuous Vital parameters monitoring 10 min ( HR/IBP/SpO2/EtCO2 )

Post dexmedetomidine analysis :

Continuous Vital parameters monitoring ( HR/IBP/SpO2/EtCO2 )

·         TCCDI analysis of Right and left  MCA flow velocity

·         Baseline flow velocity for 5 seconds

·         Flow velocity Compression of Rt. Side carotid artery (  3 sec )

·         Flow velocity  After release of compression for 5 seconds

 

·         

 

After induction routine anaesthesia protocol will be employed.

 

 Data collection: manual entry into the study proforma.

Observations:

Baseline heart rate, Invasive blood pressure (sys/ dias/ mean), oxygen saturation before starting the anesthesia induction .

Baseline recording of  MCA flow velocity, pulsatility index & resistance index on both hemispheres using Transcranial colour Doppler imaging.

Auto regulation assed by Transient hyperaemic response 

The hemodynamic variables (HR ,SBP,DBP and MAP) ,oxygen saturation, End tidal carbon dioxide (EtCO2) & respiratory rate during induction with Dexmedetomidine

Heart rate, Invasive blood pressure (sys/ dias/ mean), oxygen saturation after induction with Dexmedetomidine.

Recording of  MCA flow velocity, pulsatility index & resistance index on both hemispheres using Transcranial  colour Doppler imaging after induction with Dexmedetomidine.

Auto regulation - Transient hyperaemic response  after induction

Any hemodynamic and respiratory adverse  events such as hypotension, hypertension, Bradycardia, oxygen desaturation and other events will be recorded.

 
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