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CTRI Number  CTRI/2024/01/061165 [Registered on: 05/01/2024] Trial Registered Prospectively
Last Modified On: 20/12/2023
Post Graduate Thesis  No 
Type of Trial  Observational 
Type of Study   Investigator Initiated Study 
Study Design  Single Arm Study 
Public Title of Study   A prospective, Single-Centre study to investigate the plaque characteristics of lesions in young Indian patients of ≤40 years 
Scientific Title of Study   A prospective, Single-Centre study to investigate the plaque characteristics in the culprit vessels in young Indian patients (≥18 - ≤40 yrs) with ACS undergoing PCI by Optical Coherence Tomography imaging. 
Trial Acronym  YPS40 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Nityanand Tripathi 
Designation  Director and Head 
Affiliation  Fortis Hospital, Shalimar Bagh 
Address  Cardiology and Electrophysiology, Shaheed Udham Singh Marg, A Block, Poorbi Shalimar Bag

New Delhi
DELHI
110088
India 
Phone  9971365522  
Fax  911145302211  
Email  Tripathinityanand@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Nityanand Tripathi 
Designation  Director and Head 
Affiliation  Fortis Hospital, Shalimar Bagh  
Address  Cardiology and Electrophysiology, Shaheed Udham Singh Marg, A Block, Poorbi Shalimar Bag

New Delhi
DELHI
110088
India 
Phone  9971365522  
Fax  911145302211  
Email  Tripathinityanand@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Nityanand Tripathi  
Designation  Director and Head 
Affiliation  Fortis Hospital, Shalimar Bagh  
Address  Cardiology and Electrophysiology, Shaheed Udham Singh Marg, A Block, Poorbi Shalimar Bag

New Delhi
DELHI
110088
India 
Phone  9971365522  
Fax  911145302211  
Email  Tripathinityanand@gmail.com  
 
Source of Monetary or Material Support  
Investigator Initiated Study (Dr Nityanand Tripathi Director and Head, Cardiology and Electrophysiology, Fortis Hospital, Shalimar Bagh) 
 
Primary Sponsor  
Name  Dr Nityanand Tripathi 
Address  Fortis Hospital, Shalimar Bagh, Cardiology and Electrophysiology, Shaheed Udham Singh Marg, A Block, Poorbi Shalimar Bag, NEW DELHI - 110088 
Type of Sponsor  Other [Self] 
 
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 Nityanand Tripathi   Fortis Hospital, Shalimar Bagh  Director and Head, Cardiology and Electrophysiology, Shaheed Udham Singh Marg, AA Block, Poorbi Shalimar Bag
New Delhi
DELHI 
9971365522
911145302211
Tripathinityanand@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee-Fortis Hospital, Shalimar Bagh  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: I248||Other forms of acute ischemic heart disease,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  40.00 Year(s)
Gender  Both 
Details  1. Patient is ≥ 18 and ≤ 40 years of age and going for PCI of the culprit lesion (more than 90 % diameter stenosis)

2. At least ≥1 de novo lesions in a native coronary segment with a visually estimated diameter stenosis between ≥ 40 % and < 90%

3. Patient has documented ACS (unstable angina, NSTEMI or STEMI within the previous 72 hours)

4. Patient demonstrates a left ventricular ejection fraction (LVEF) of ≥ 40% as measured prior to enrolment

5. Patient understands and agrees to comply with all specified study requirements and provides written Informed Consent to this effect 
 
ExclusionCriteria 
Details  1) Patients with a medical condition that limits the life expectancy to 1 years or less
2) Patients scheduled to undergo surgery within 3 months that requires interruption of DAPT
3) Women who are pregnant or planning to be pregnant
4) Patients with allergy to contrast agents
5) Patients with coronary artery occlusion occurring at a site where a stent has already been placed or in whom observation by OCT is considered difficult
6) Patients in shock
7) Patients with a history of adverse reactions to aspirin, clopidogrel, or prasugrel
8) Patients who are ineligible for the study in the opinion of the investigator
9) Patients in whom follow-up at 12 months after the index procedure is considered difficult
10) Patients with renal failure with a serum creatinine level of 2.0 mg/dL or more at presentation (non-HD patients)
11) Patients with active heart failure
12) Patients with acute Mitral regurgitation.  
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Plaque Characteristics  Baseline and 1 year 
 
Secondary Outcome  
Outcome  TimePoints 
Incidence of MACE, a composite of Cardiac
Death, MI or re-hospitalization for progressive
angina 
Day 30, 6 and 12 months 
 
Target Sample Size   Total Sample Size="50"
Sample Size from India="50" 
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)   05/12/2025 
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="4"
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  
Acute coronary syndrome (ACS) is characterized by rapid stenosis or occlusion of the lumen caused by coronary thrombus formation, resulting in myocardial ischemia or necrosis. It is classified into ST-elevation acute myocardial infarction (STEMI), non-ST-elevation acute myocardial infarction (NSTEMI), and unstable angina (UA).  Coronary plaques in ACS are greatly different from those in stable coronary artery disease (SCAD), being characterized by various morphological features and thrombus formation within the coronary artery. Culprit lesions of ACS can be identified as occluded or severely stenotic lesions on a coronary angiogram, but non-culprit lesions that are angiographically shown to be mildly or moderately stenotic also often represent lipid or vulnerable plaques with a necrotic core, suggesting that they are likely to lead to thrombus formation.

Recent advances in intravascular imaging techniques such as intravascular ultrasound (IVUS) and optical coherence tomography (OCT) have made it possible to assess coronary lesions in greater detail. OCT is an imaging technique that employs near-infrared light with a wavelength of about 1300 nm emitted from the tip and visualizes the vascular lumen based on the light reflected from various parts of the lumen. Because of its high resolution (10 to 15 μm), optical coherence tomography (OCT) has played an important role in elucidating the pathology of ACS by, for example, identifying thin-cap fibroatheroma (TCFA) with a large necrotic lipid core, one of the major causes of ACS, and its rupture, and characterizing coronary thrombi as red, white, or mixed thrombi based on morphology and the degree of signal attenuation 


This study will evaluate the plaque characteristics (minimum lumen area, fibrous cap thickness, lipid arc extension, presence of microcalcification macrophages infiltration and microchannel formation at the explored plaques) of culprit lesions at baseline.  This information will be correlated with the follow clinical data in these patients undergoing PCI for ACS in young Indian patients.

 
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