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CTRI Number  CTRI/2024/09/073918 [Registered on: 13/09/2024] Trial Registered Prospectively
Last Modified On: 25/08/2025
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   Tha main outcome of study is to find the relation between factors involved in blood clotting and vascular growth factor in patients of retinal vein occlusion 
Scientific Title of Study   Relation between adenosine diphosphate stimulated platelet aggregation and vascular endothelial growth factor release in branch retinal vein occlusion 
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 Punita Kumari Sodhi 
Designation  Director Professor 
Affiliation  Maulana Azad Medical College  
Address  Department of Ophthalmology, Maulana Azad Medical College and Associated Guru Nanak Eye Centre, New Delhi
Department of Ophthalmology, Guru Nanak Eye Centre, New Delhi
New Delhi
DELHI
110002
India 
Phone  9968604414  
Fax    
Email  sodhipunita@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Aditi Yadav 
Designation  Junior Resident 
Affiliation  Maulana Azad Medical College  
Address  Department of Ophthalmology, Maulana Azad Medical College and Associated Guru Nanak Eye Centre, New Delhi

New Delhi
DELHI
110002
India 
Phone  8168396200  
Fax    
Email  aditi108108@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Aditi Yadav 
Designation  Junior Resident 
Affiliation  Maulana Azad Medical College  
Address  Department of Ophthalmology, Maulana Azad Medical College and Associated Guru Nanak Eye Centre, New Delhi

New Delhi
DELHI
110002
India 
Phone  8168396200  
Fax    
Email  aditi108108@gmail.com  
 
Source of Monetary or Material Support  
Maulana Azad Medical College and Associated Guru Nanak Eye Centre, New Delhi, 110002 
 
Primary Sponsor  
Name  Maulana Azad Medical College  
Address  Maulana Azad Medical College and Associated Guru Nanak Eye Centre (Department of Ophthalmology), New Delhi,110002 
Type of Sponsor  Government medical college 
 
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 Aditi Yadav  Maulana Azad Medical College   Department of Ophthalmology, Guru Nanak Eye Centre
New Delhi
DELHI 
8168396200

aditi108108@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: H342||Other retinal artery occlusions,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIL 
 
Inclusion Criteria  
Age From  45.00 Year(s)
Age To  65.00 Year(s)
Gender  Both 
Details  1)Subjects having normal platelet count, prothrombin time and activated partial thromboplastin time.
2)Subjects not on any anti-platelet-aggregating drugs, anticoagulants or non-steroidal anti-inflammatory drugs.
 
 
ExclusionCriteria 
Details  1)Subjects having other ocular diseases like glaucoma, media opacity, optic nerve disorders, high refractive errors, other significant co-existing retinal diseases especially those which affect macular perfusion (e.g. diabetic retinopathy, uveitis and vasculitis)
2)Subjects having best corrected visual acuity lesser than 6/60
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Platelet aggregation response to adenosine diphosphate in subjects of branch retinal vein occlusion.  4weeks 
 
Secondary Outcome  
Outcome  TimePoints 
1)Serum levels of vascular endothelial growth factor-A (VEGF-A)
2)Posterior segment Optical Coherence Tomography parameters (Central foveal thickness and sub-foveal choroidal thickness) and Optical Coherence Tomography Angiography parameters (Foveal Avascular Zone, vessel density)
 
3 months 
 
Target Sample Size   Total Sample Size="30"
Sample Size from India="30" 
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)   24/09/2024 
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)
Modification(s)  
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   A total of thirty treatment naïve subjects in the age group of 45 to 65 years having branch retinal vein occlusion will be enrolled. A thorough history will be taken and a detailed ocular examination will be done. Platelet aggregation will be evaluated by inducing the aggregation of human platelets (250× 103/μl) with adenosine diphosphate (200 μM) using the principle of light transmission aggregometry with aggregometer (Helena AggRAM). For all the subjects, VEGF-A will be estimated by Enzyme Linked Immunosorbent Assay (ELISA) with commercially available kits 
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