FULL DETAILS (Read-only)  -> Click Here to Create PDF for Current Dataset of Trial
CTRI Number  CTRI/2025/12/098836 [Registered on: 10/12/2025] Trial Registered Prospectively
Last Modified On: 01/12/2025
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Longitudinal 
Study Design  Other 
Public Title of Study   Studying the Immune Systems Reaction to the Flu Shot in healthcare workers 
Scientific Title of Study   Characterization of immune response post influenza vaccination among health care workers 
Trial Acronym  Nil 
Secondary IDs if Any  
Secondary ID  Identifier 
Nil  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Anup Jayaram 
Designation  Lecturer 
Affiliation  Manipal Institute of Virology, Manipal Academy of Higher Education 
Address  Room No. 108 Manipal Institute of Virology, Manipal Academy of Higher Education, Manipal, Karnataka - 576104

Udupi
KARNATAKA
576104
India 
Phone  9482406560  
Fax  08202922719  
Email  anup.jayaram@manipal.edu  
 
Details of Contact Person
Scientific Query
 
Name  Anup Jayaram 
Designation  Lecturer 
Affiliation  Manipal Institute of Virology, Manipal Academy of Higher Education 
Address  Room No. 108 Manipal Institute of Virology, Manipal Academy of Higher Education, Manipal, Karnataka - 576104

Udupi
KARNATAKA
576104
India 
Phone  9482406560  
Fax  08202922719  
Email  anup.jayaram@manipal.edu  
 
Details of Contact Person
Public Query
 
Name  Anup Jayaram 
Designation  Lecturer 
Affiliation  Manipal Institute of Virology, Manipal Academy of Higher Education 
Address  Room No. 108 Manipal Institute of Virology, Manipal Academy of Higher Education, Manipal, Karnataka - 576104

Udupi
KARNATAKA
576104
India 
Phone  9482406560  
Fax  08202922719  
Email  anup.jayaram@manipal.edu  
 
Source of Monetary or Material Support  
Manipal Institute of Virology, Manipal Academy of Higher Education, Madhav Nagar, Manipal, Karnataka, India - 576104 
 
Primary Sponsor  
Name  Manipal Academy of Higher Education 
Address  Madhav Nagar, Manipal, Karnataka - 576104 
Type of Sponsor  Research institution 
 
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 Chiranjay Mukhopadhyay  Manipal Institute of Virology  Room No. 107, Madhav Nagar, Manipal, Karnataka - 576104
Udupi
KARNATAKA 
9845513057
08202922719
chiranjay.m@manipal.edu 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Kasturba Medical College and Kasturba Hospital Institutional Ethics Committee - 2 (Student Research)  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  ICD-10-CM 
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Nil  Nil 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Consented individual

Individuals who are willing to provide pre and post vaccination blood sample as per schedule  
 
ExclusionCriteria 
Details  Participants who have recently diagnosed with Influenza virus infection (within 3 months)

Participants who have received medication/ therapy recently (last six months)

Participants that have refused or withdrawn from study  
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
This study will provide insights in to evidence-based improvement of immunization protocol in high-risk clinical settings.  12 Months 
 
Secondary Outcome  
Outcome  TimePoints 
Nil  Nil 
 
Target Sample Size   Total Sample Size="90"
Sample Size from India="90" 
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)   14/12/2026 
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="1"
Months="0"
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 - NO
Brief Summary   Influenza vaccination is essential for healthcare workers, a priority risk group due to their high exposure and vital role in healthcare delivery. By specifically evaluating vaccine-induced immunity within this group, the study will provide valuable insights into determinants of immune protection, help identify potential gaps in vaccine effectiveness, and contribute to strengthening vaccination strategies and public health preparedness in India. Host factors such as age, prior exposure, vaccination history, co-morbidities, and occupational risk influence immune responses following vaccination This study will assess how host factors such as age, prior exposure, vaccination history, co-morbidities, and occupational risk influence vaccine-induced immunity, thereby identifying potential gaps in protection and supporting stronger vaccination strategies and public health preparedness in India.
 
Close