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CTRI Number  CTRI/2017/11/010588 [Registered on: 22/11/2017] Trial Registered Retrospectively
Last Modified On: 11/12/2019
Post Graduate Thesis  No 
Type of Trial  Observational 
Type of Study   Data Collection 
Study Design  Other 
Public Title of Study   Computer Automated Detection (CAD) programme in identifying the presence of diabetic retinopathy (DR) and diabetic macular edema (DME) in persons with diabetes 
Scientific Title of Study   A Study to assess the effectiveness of a Computer Automated Detection (CAD) programme in identifying the presence of diabetic retinopathy (DR) and diabetic macular edema (DME) in persons with diabetes  
Trial Acronym  CAD-DR 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr R Kim 
Designation  Chief Medical Officer 
Affiliation  Aravind Eye Hospital and PG Institute of Ophthalmology  
Address  Aravind Eye Hospital and PG Institute of Ophthalmology No.1 Anna Nagar, Madurai, Tamilnadu, India

Madurai
TAMIL NADU
625020
India 
Phone  04524356102  
Fax  04522530984  
Email  kim@aravind.org  
 
Details of Contact Person
Scientific Query
 
Name  Dr Varun Gulshan 
Designation  Research Scientist 
Affiliation  Google Inc. 
Address  Google India Pvt Ltd
Tower E, RMZ Infinity Old Madras Road Bangalore
Bangalore
KARNATAKA
560016
India 
Phone  919818043473  
Fax  918067218100  
Email  varungulshan@google.com  
 
Details of Contact Person
Public Query
 
Name  Dr Varun Gulshan 
Designation  Research Scientist 
Affiliation  Google Inc. 
Address  Google India Pvt Ltd
Tower E, RMZ Infinity Old Madras Road Bangalore
Bangalore
KARNATAKA
560016
India 
Phone  919818043473  
Fax  918067218100  
Email  varungulshan@google.com  
 
Source of Monetary or Material Support  
Google Inc 1600 Amphitheatre Pkwy Mountain View, CA, USA 
 
Primary Sponsor  
Name  Google Inc 
Address  1600 Amphitheatre Pkwy Mountain View, CA, USA 
Type of Sponsor  Other [Corporate ] 
 
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 R Kim  Aravind Eye Hospital and PG Institute of Ophthalmology   Retina and Vitreous Department, Roon. No. 200; 2nd Floor, OPD Block, No.1 Anna Nagar, Madurai, 625020, TamilNadu
Madurai
TAMIL NADU 
04524356102
04522530984
kim@aravind.org 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Review Board  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied
Modification(s)  
Health Type  Condition 
Patients  (1) ICD-10 Condition: H350||Background retinopathy and retinalvascular changes, Diabetes Mellitus,  
 
Intervention / Comparator Agent  
Type  Name  Details 
 
Inclusion Criteria  
Age From  40.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  An eligible patient must:(1) have a diagnosis of diabetes mellitus;
(2) have no history of any other retinal vascular disease, glaucoma, or other disease that may affect the appearance of the retina or optic disc (refractive error and ocular surface disease are allowed);
(3) other than cataract surgery, have no history of intraocular surgery, ocular laser treatments for any retinal disease, or ocular injections for diabetic macular edema or proliferative disease;
(4) have no media opacity precluding good retinal photography; and
(5) be of age 40 or older. 
 
ExclusionCriteria 
Details  Non-diabetic patients and other than the above said eligibility criteria 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
The sensitivity and specificity of the software in detecting referable diabetic retinopathy and diabetic macula edema (moderate or worse DR and referable DME) as compared to trained human graders.  4-6 months 
 
Secondary Outcome  
Outcome  TimePoints 
The sensitivity and specificity of the software in detecting severe or worse diabetic retinopathy and referable diabetic macula edema as compared to trained human graders.  4-6 months 
 
Target Sample Size   Total Sample Size="1000"
Sample Size from India="1000" 
Final Enrollment numbers achieved (Total)= "1000"
Final Enrollment numbers achieved (India)="1000" 
Phase of Trial   Post Marketing Surveillance 
Date of First Enrollment (India)   20/04/2016 
Date of Study Completion (India) 20/07/2016 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="0"
Months="5"
Days="30" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details
Modification(s)  
Published in, "The Journal of the American Medical Association" JAMA Ophthalmol. 2019;137(9):987-993. doi:10.1001/jamaophthalmol.2019.2004  
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary
Modification(s)  
The study results demonstrate that an automated algorithm identified referable DR with performance equal to or exceeding the retinal specialists in a prospective clinical setting.  
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