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CTRI Number  CTRI/2021/10/037517 [Registered on: 25/10/2021] Trial Registered Prospectively
Last Modified On: 21/10/2021
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   A study to determine the effect of ondansetron in prevention of hypotension in caesarean delivery under spinal anaesthesia 
Scientific Title of Study   Effect of prophylactic intravenous ondansetron in the prevention of spinal anaesthesia induced hypotension during caesarean delivery-A prospective randomized double blinded 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 Monisha Ravichandran 
Designation  Postgraduate 
Affiliation  Sri Ramachandra Institute Of Higher Education And Research 
Address  Department of Anaesthesiology Udayar main block Sri Ramachandra Institute Of Higher Education And Research, Porur, Chennai.
Department of Anaesthesiology Udayar main block Sri Ramachandra Institute Of Higher Education And Research, Porur, Chennai.
Chennai
TAMIL NADU
600116
India 
Phone  9442461287  
Fax    
Email  m2320012@sriramachandra.edu.in  
 
Details of Contact Person
Scientific Query
 
Name  Dr Mahesh Vakamudi 
Designation  Professor and Guide 
Affiliation  Sri Ramachandra Institute Of Higher Education And Research 
Address  Department of Anaesthesiology, Sri Ramachandra Institute Of Higher Education And Research, Porur, Chennai.

Chennai
TAMIL NADU
600116
India 
Phone  9840022626  
Fax    
Email  vakamudi@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Mahesh Vakamudi 
Designation  Professor and Guide 
Affiliation  Sri Ramachandra Institute Of Higher Education And Research 
Address  Department of Anaesthesiology, Sri Ramachandra Institute Of Higher Education And Research, Porur, Chennai.

Chennai
TAMIL NADU
600116
India 
Phone  9840022626  
Fax    
Email  vakamudi@gmail.com  
 
Source of Monetary or Material Support  
Sri Ramachandra Institute Of Higher Education And Research,Porur,Chennai 600116 
 
Primary Sponsor  
Name  Dr Monisha Ravichandran 
Address  Sri Ramachandra Institute Of Higher Education And Research, Porur, Chennai 600116 
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 Monisha Ravichandran  Sri Ramachandra Institute Of Higher Education And Research  OBSTETRICS AND GYNAECOLOGY OPERATION THEATRE COMPLEX, DEPARTMENT OF ANAESTHESIOLOGY, THIRD FLOOR, UDAYAR BLOCK AND G BLOCK
Chennai
TAMIL NADU 
9442461287

m2320012@sriramachandra.edu.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Sri Ramachandra Institutional Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: O00-O9A||Pregnancy, childbirth and the puerperium,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  ONDANSETRON  ONDANSETRON 4mg,intravenous 5 minutes before starting the study ONDANSETRON 8mg,intravenous 5 minutes before starting the study  
Comparator Agent  PLACEBO  Normal saline,intravenous 5 minutes before starting the study 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  45.00 Year(s)
Gender  Female 
Details  1)Parturients aged 18 to 45 years
2)American Society Of Anesthesiologits physical status less than III
3)Singleton term pregnancy(more than 37 weeks gestation)
4)Scheduled for elective caesarean delivery under regional anaesthesia 
 
ExclusionCriteria 
Details  1)Patient refusal
2)Hypersensitivity to Ondansetron
3)Contraindication for spinal anesthesia
4)Hypertensive disorders and diabetes with pregnancy
5)History of nausea,vomiting during the 24 hours before induction of anaesthesia
6)Multiple gestation
7)Patient receiving selective serotonin reuptake inhibitor



 
 
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 
To estimate the magnitude of the effect of Ondansetron versus placebo in reducing the incidence of spinal anaesthesia induced hypotension during caesarean delivery   1 Year 
 
Secondary Outcome  
Outcome  TimePoints 
The requirement of phenylephrine,ephedrine and atropine.

 
1 Year 
 
Target Sample Size   Total Sample Size="150"
Sample Size from India="150" 
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 3 
Date of First Enrollment (India)   01/11/2021 
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="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   NOT YET 
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary   The aim of the study is to determine the effect of Ondansetron in two different doses on the haemodynamic changes associated with spinal block and to estimate the requirement of vasopressors in preventing hypotension with the two different doses of Ondansetron in comparison with placebo in patients undergoing elective caesarean delivery.Consenting parturients aged between 18 to 45 years,ASA less than III,singleton term pregnancy scheduled for elective caesarean delivery under regional anaesthesia will be randomly allocated into three groups.Group A:patients will receive 4mg of of Ondansetron with 8ml of normal saline.Group B:patients will receive 8mg of Ondansetron with 6ml of normal saline.Group C:patients will receive 10ml of normal saline(placebo).Depending on the group,the study solution will be administered to the patients intravenously five minutes before giving spinal block.Intra operatively spinal anaesthesia will be given and haemodynamic parameters such as heart rate,systolic and diastolic blood pressure,mean arterial pressure will be recorded.Incidence of hypotension,volume of intravenous fluid used,requirement of vasopressors like Ephedrine,Phenylephrine and need of Atropine will be noted.   
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