NCT07026708

Brief Summary

This prospective observational study aims to evaluate the prognostic significance of the neutrophil-to-lymphocyte ratio (NLR) as a predictor of mortality in patients following an episode of Acute Coronary Syndrome (ACS). Despite advancements in interventional cardiology and medical therapy, mortality remains significant in post-ACS patients, and early risk stratification is essential for optimizing outcomes. Recent studies have suggested that systemic inflammatory markers, such as NLR, are associated with adverse cardiovascular events. It is an easily obtainable and cost-effective laboratory parameter derived from a routine complete blood count. However, its value as an independent predictor of mortality post-ACS has not yet been fully established in our population. The study will include patients aged, admitted with a confirmed diagnosis of ACS (STEMI or Non-STEMI) and treated with percutaneous coronary intervention (PCI). NLR values will be measured from the first blood draw upon hospital admission, 24 and 48 hours post PCI. Patients will be followed up for up to 6 months after discharge through telephone interviews . First, primary outcomes of the study will be the association between NLR values and mortality (all cause mortality and cardiovascular mortality), MACE (MACE was defined as the composite of all-cause mortality, cardiac death, unplanned revascularization, non-fatal myocardial infarction that was attributable and not related to stent failure or unplanned revascularization not related to stent failure) within 6 months post-ACS. Secondary outcomes will include:

  1. 1.Differences in mean NLR between STEMI and NSTEMI patients.
  2. 2.Association between elevated NLR and the presence of multivessel coronary artery disease on angiography.
  3. 3.Correlation of NLR with other biomarkers, including the platelet-to-lymphocyte ratio (PLR), C-reactive protein (CRP), high-density lipoprotein (HDL) cholesterol, and maximum troponin levels (as an indicator of myocardial infarction size)

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,600

participants targeted

Target at P75+ for all trials

Timeline
13mo left

Started Nov 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress59%
Nov 2024Jun 2027

Study Start

First participant enrolled

November 1, 2024

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

June 10, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 18, 2025

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2026

Expected
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

September 30, 2025

Status Verified

September 1, 2025

Enrollment Period

2 years

First QC Date

June 10, 2025

Last Update Submit

September 27, 2025

Conditions

Keywords

Residual inflammationMyocardial infarctionPercutaneous Coronary InterventionAcute Coronary Syndrome

Outcome Measures

Primary Outcomes (3)

  • Neutrophil-to-Lymphocyte Ratio (NLR)

    Association Between Neutrophil-to-Lymphocyte Ratio (NLR) and Mortality (all cause mortality and cardiovascular mortality), MACE (MACE was defined as the composite of all-cause mortality, cardiac death, unplanned revascularization, non-fatal myocardial infarction that was attributable and not related to stent failure or unplanned revascularization not related to stent failure) in Post-Acute Coronary Syndrome (ACS) Patients . This outcome assesses the predictive value of NLR levels for mortality within 6 months following an ACS event.

    6 months post-ACS with a potential prolonged period of roughly 12 months

  • Mortality (all cause mortality and cardiovascular mortality)

    Mortality (all cause mortality and cardiovascular mortality) in Post-Acute Coronary Syndrome (ACS) Patients .

    6 months post-ACS with a potential prolonged period of roughly 12 months

  • MACE (Major Acute Coronary Events)

    MACE was defined as the composite of all-cause mortality, cardiac death, unplanned revascularization, non-fatal myocardial infarction that was attributable and not related to stent failure or unplanned revascularization not related to stent failure in Post-Acute Coronary Syndrome (ACS) Patients .

    6 months post-ACS with a potential prolonged period of roughly 12 months

Secondary Outcomes (4)

  • Difference in Mean NLR Between STEMI and NSTEMI Patients

    At hospital admission

  • Association Between High NLR and Presence of Multivessel Coronary Artery Disease

    During initial coronary angiography

  • Correlation Between NLR and Other Inflammatory Markers (PLR, CRP, HDL-Cholesterol)

    Within 48 hours of hospital admission

  • Correlation Between NLR and Peak Troponin Levels

    During hospitalization (within first 5 days of admission)

Study Arms (1)

Acute Coronary Syndrome Patients

Data Collection: General patient information, diagnosis, comorbidities, CRP levels, neutrophil and lymphocyte counts, thrombocyte count, HDL cholesterol, LDL cholesterol, and complications (electrical and mechanical) will be collected from the medical records in the cardiology department of our main tertiary hospital "Mother Teresa Hospital". Angiographic data and treatment information will be gathered from standard coronary angiography reports used at our cardiac catheterization laboratories. The follow-up form used for telephone interviews with patients is based on standardized instruments, including the WHO Rose Angina Questionnaire, Seattle Angina Questionnaire, EQ-5D-5L, MacNew Heart Disease Health-Related Quality of Life Questionnaire, McGill Pain Questionnaire, and the MRC Dyspnoea Scale. Patient status will be evaluated at 24 hours, 48 hours, and 6 months after the onset of symptoms. The symptom onset time will be obtained from medical records documented upon patient referral.

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

General patient information, diagnosis, comorbidities, CRP levels, neutrophil and lymphocyte counts, thrombocyte count, HDL cholesterol, LDL cholesterol, and complications (electrical and mechanical) will be collected from the medical records in the cardiology department of our main tertiary hospital "Mother Teresa Hospital". Angiographic data and treatment information will be gathered from standard coronary angiography reports used at our cardiac catheterization laboratories. The follow-up form used for telephone interviews with patients is based on standardized instruments, including the WHO Rose Angina Questionnaire, Seattle Angina Questionnaire, EQ-5D-5L, MacNew Heart Disease Health-Related Quality of Life Questionnaire, McGill Pain Questionnaire, and the MRC Dyspnoea Scale. Patient status will be evaluated at 24 hours, 48 hours, and 6 months after the onset of symptoms. The symptom onset time will be obtained from medical records documented upon patient referral.

You may qualify if:

  • \- All patients (undergoing PCI, aged 18-85 years) presenting to the cardiology department or/and the cardiology intensive care unit with a diagnosis of ACS

You may not qualify if:

  • Patients presenting to the cardiology department or/and the cardiology intensive care unit with diagnoses other than ACS and/or UA. Patients who died before undergoing PCI and those who did not provide a contact number.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Faculty of Medicine Tirana

Tirana, 1005, Albania

RECRUITING

MeSH Terms

Conditions

Acute Coronary SyndromeMyocardial InfarctionMyocarditisNon-ST Elevated Myocardial InfarctionST Elevation Myocardial Infarction

Condition Hierarchy (Ancestors)

Myocardial IschemiaHeart DiseasesCardiovascular DiseasesVascular DiseasesInfarctionIschemiaPathologic ProcessesPathological Conditions, Signs and SymptomsNecrosisCardiomyopathies

Study Officials

  • Andi Rroku, MD

    Deutsches Herzzentrum der Charité (DHZC) - Campus Benjamin Franklin

    PRINCIPAL INVESTIGATOR
  • Alban Dibra, Prof. Dr, Phd

    University of Medicine, Tirana

    STUDY DIRECTOR
  • Martiola Kola, MD

    University of Medicine, Tirana

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 10, 2025

First Posted

June 18, 2025

Study Start

November 1, 2024

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

June 1, 2027

Last Updated

September 30, 2025

Record last verified: 2025-09

Locations