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CTRI Number  CTRI/2025/09/095286 [Registered on: 23/09/2025] Trial Registered Prospectively
Last Modified On: 22/09/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Diagnostic 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Study of Diagnostic accuracy of HBcrAg biomarker in comparison to HBV DNA PCR in Hepatitis B infetcted patients. 
Scientific Title of Study   Evaluation of Hepatitis B core related antigen (HBcrAg) Immunoassay in Chronic Hepatitis B infected cases 
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 Ekta Gupta 
Designation  Professor 
Affiliation  Institute of Liver and Biliary Sciences 
Address  Department of Clinical Virology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi

New Delhi
DELHI
110070
India 
Phone  9899975974  
Fax    
Email  ektagaurisha@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Ekta Gupta 
Designation  Professor 
Affiliation  Institute of Liver and Biliary Sciences 
Address  Department of Clinical Virology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi

New Delhi
DELHI
110070
India 
Phone  9899975974  
Fax    
Email  ektagaurisha@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Ekta Gupta 
Designation  Professor 
Affiliation  Institute of Liver and Biliary Sciences 
Address  Department of Clinical Virology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi

New Delhi
DELHI
110070
India 
Phone  9899975974  
Fax    
Email  ektagaurisha@gmail.com  
 
Source of Monetary or Material Support  
Agappe Diagnostics Limited, Agappe Hills, Pattimattom P O, Ernakulam, Kerala, India, Pincode - 683562 
 
Primary Sponsor  
Name  Agappe Diagnostics Limited 
Address  Agappe Hills, Patimattom P O, Ernakulam, Kerala, India, Pincode - 683562 
Type of Sponsor  Other [IVD Manufacturer] 
 
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 Ekta Gupta  Institute of Liver and Biliary Sciences  Department of Clinical Virology, Institute of Liver and Biliary Sciences, D-1, Vasant Kunj, New Delhi
New Delhi
DELHI 
09899975974

ektagaurisha@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institute of Liver and Biliary Sciences  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: B189||Chronic viral hepatitis, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  HBcrAg biomarker quantitation.  HBcrAg protein quantification using Chemiluminescence enzyme immunoassay. Duration of the intervention-6 months. 
Comparator Agent  HBV DNA RT PCR as the comparator.  HBcrAg biomarker quantitation in reference to HBV DNA RT PCR. Duration of the intervention-6 months. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  70.00 Year(s)
Gender  Both 
Details  Study group (n=250): Adult population (Above 18 years) diagnosed with CHB (HBsAg and /or HBV DNA
positive for more than 6 months or histopathologically confirmed chronic hepatitis with HBsAg positive), both
treatment naïve and experienced in different groups in which adequate specimen volume (minimum 1
ml) could be retrieved.
Control group (n=50): True negative which is defined as virologically confirmed Hepatitis B negative
cases (HBsAg negative and or anti-HBcore total negative and or HBV DNA negative), adult population
(above 18 years) in which adequate specimen volume (minimum 1 ml) could be retrieved. 
 
ExclusionCriteria 
Details  Co-infection with other hepatotropic virus (Hepatitis A/C/D/E)
Cases with underlying other chronic liver disease
Co-infection with HIV
Patients on other immunosuppressive therapy
Pregnant females 
 
Method of Generating Random Sequence   Adaptive randomization, such as minimization 
Method of Concealment   An Open list of random numbers 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Diagnostic accuracy confirmation of HBcrAg biomarker in comparison to HBV DNA real time PCR.   6 months 
 
Secondary Outcome  
Outcome  TimePoints 
NIL   
 
Target Sample Size   Total Sample Size="300"
Sample Size from India="300" 
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)   15/10/2025 
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="6"
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  
Chronic Hepatitis B (CHB) remains a significant global health concern, affecting over 254
million individuals worldwide and contributing to serious complications such as hepatic fibrosis,
cirrhosis, and hepatocellular carcinoma (HCC). Traditional serological and virological markers,
including HBsAg, HBeAg, and HBV DNA, play essential roles in diagnosis and monitoring but have
limited capacity to accurately reflect intrahepatic viral replication and covalently closed circular DNA
(cccDNA) activity.
There is an increasing need for novel, non-invasive biomarkers that can better assess the replicative
status of HBV, predict treatment response, and identify early risk of reactivation. Among these,
Hepatitis B core-related antigen (HBcrAg) has emerged as a promising candidate. Comprising
HBcAg, HBeAg, and a 22-kDa core-related protein (p22cr), HBcrAg reflects transcriptional activity
from the cccDNA minichromosome. Studies have shown that serum HBcrAg levels fluctuate across
different phases of CHB, correlate better with intrahepatic cccDNA than quantitative HBsAg, and serve
as better predictors of HBeAg seroconversion and treatment cessation.
Despite its clinical utility being recognized globally, no Indian studies have yet evaluated HBcrAg in
the context of CHB management.There are no commercially available kits or instruments for
this biomarker detection.TheMISPA i60 HBcrAg is a chemiluminescent enzyme immunoassay (CLEIA) that
uses chemiluminescent substrate (AMPPD) for measurement.This has recently been launched in Japan
and is used extensively globally. This kit or instrument is launched in India for the first time. The present
study aims to evaluate the diagnostic performance of MISPA i60 HBcrAg CLEIA assay for
quantitative detection of HBcrAg in clinical samples from CHB infected cases and to compare it with
traditional virological markers such as quantitative HBsAg and HBV DNA.
 
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