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CTRI Number  CTRI/2025/07/091408 [Registered on: 22/07/2025] Trial Registered Prospectively
Last Modified On: 21/07/2025
Post Graduate Thesis  No 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   Evaluation of the AS76 with PBS device for Peripheral Blood Smear Examination. 
Scientific Title of Study   Clinical Evaluation of AS76 with PBS versus light microscopy 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Tathagato Rai Dastidar 
Designation  CEO 
Affiliation  Sigtuple Technologies Private Limited 
Address  SigTuple Technologies Pvt Ltd L-162 14th Cross Road 6th Sector HSR Layout Bangalore 560102 INDIA

Bangalore
KARNATAKA
560102
India 
Phone  9036839020  
Fax    
Email  trd@sigtuple.com  
 
Details of Contact Person
Scientific Query
 
Name  Tathagato Rai Dastidar 
Designation  CEO 
Affiliation  Sigtuple Technologies Private Limited 
Address  SigTuple Technologies Pvt Ltd L-162 14th Cross Road 6th Sector HSR Layout Bangalore 560102 INDIA

Bangalore
KARNATAKA
560102
India 
Phone  9036839020  
Fax    
Email  trd@sigtuple.com  
 
Details of Contact Person
Public Query
 
Name  Tathagato Rai Dastidar 
Designation  CEO 
Affiliation  Sigtuple Technologies Private Limited 
Address  SigTuple Technologies Pvt Ltd L-162 14th Cross Road 6th Sector HSR Layout Bangalore 560102 INDIA

Bangalore
KARNATAKA
560102
India 
Phone  9036839020  
Fax    
Email  trd@sigtuple.com  
 
Source of Monetary or Material Support  
SigTuple Technologies Private Limited, L-162 14th Cross Rd, Sector 6, HSR Layout Bengaluru ( Bangalore) Karnataka 560102 India 
 
Primary Sponsor  
Name  SigTuple Technologies Pvt Ltd 
Address  SigTuple Technologies Pvt Ltd L-162 14th Cross Road 6th Sector HSR Layout Bangalore 560102 INDIA  
Type of Sponsor  Other [Medical Device 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 Jayaprakash C S   Father Muller Medical College  Central Laboratory Department of Pathology Father Muller Research Center Father Muller Road Kankanady Mangalore 575002 Karnataka India
Dakshina Kannada
KARNATAKA 
08242238327

csjayaprakash@fathermuller.in 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Father Muller Institutional Ethics Committee (FMIEC)   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: R70-R79||Abnormal findings on examination of blood, without diagnosis,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Nil  Nil 
Intervention  Nil  Nil 
Intervention  Nil  Nil 
 
Inclusion Criteria  
Age From  0.00 Day(s)
Age To  99.00 Year(s)
Gender  Both 
Details  The study is an “all comers” study that shall include samples from healthy individuals and samples from individuals with various hematological conditions and distributional abnormalities such as anemia, thrombocytopenia, leukopenia, leukocytosis, elevated hematocrit, elevated nucleated red blood cells, leukemia, etc.
The abnormal samples shall align with the recommendations of the CLSI H20-A2 standard. Samples from both genders shall be used. Samples from individuals belonging to any race/ethnicity can be used. 
 
ExclusionCriteria 
Details  The following sample exclusion criteria shall be applied -
1. Slides that are not prepared adequately shall be excluded from the study. For example – slides that are
not smeared well or are stained poorly.
2. Slides that have been prepared from degenerated blood and are considered unsuitable for evaluation
by the qualified reviewers after examination under a light microscope (as per the standard procedures
of the laboratory).
3. Slides considered unsuitable for evaluation by the qualified reviewers after examination under light
microscope (as per the laboratory’s standard procedures). 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Agreement between AS76 with PBS and light microscopy in evaluating white blood cell (WBC), red blood cell (RBC), and platelet (PLT) morphologies. For WBCs: Passing-Bablok regression (slope, intercept, bias) will be used for differential counts. Sensitivity, specificity, and overall agreement will be calculated for detecting WBC abnormalities. For RBCs and PLTs: sensitivity, specificity, and overall agreement for morphological abnormalities.





 
The outcomes will be analyzed 3 months from the date of study initiation.  
 
Secondary Outcome  
Outcome  TimePoints 
Nil  Nil 
 
Target Sample Size   Total Sample Size="200"
Sample Size from India="200" 
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)   04/08/2025 
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="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
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  

 The AS76 with PBS device is an automated cell-locating device intended for 

 

1.Quantitative analysis of WBC (Differential count of white blood cell types) 

2.Semi-quantitative analysis of RBC (Morphological analysis of red blood cells)

3.Quantitative (Estimation of Platelet count) and Semi-quantitative analysis of platelets (Morphological analysis of Platelets).

 

Study Objective

 

The objective of this study is to evaluate the clinical performance of the AS76 with PBS system using peripheral blood smear (hereafter referred to as PBS) and establish equivalence with the reference method, manual review under a light microscope

 

Study Endpoint

 

The endpoint of the study is the comparison of operator-classified results of White Blood Cell (WBC) morphologies, Red Blood Cell (RBC) morphologies and Platelet (PLT) morphologies against manual microscopy using multiple statistical measures.

 
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