NCT03375528

Brief Summary

If intimal growth is such that the initial lumen is narrowed significantly, distal blood flow is restricted and chronic tissue ischemia results. This occurs in native coronary arteries and during restenosis after coronary angioplasty or failure of some coronary vein grafts. Stent implantation has become the principal revascularization technique for coronary artery disease. But, in-stent restenosis (ISR) by neointimal hyperplasia persists as a significant limitation of this procedure in the era of drug eluting stent (DES). Coronary intervention might induce an inflammatory response by arterial wall damage, release of inflammatory and chemoattractant factors resulting in leukocyte and platelet activation. Then, Migration and proliferation of neointimal smooth muscle cells together with the deposition of extracellular matrix might lead to the development of ISR. It is known that matrix metalloproteinases (MMPs) play a key role in the pathogenesis of restenosis by controlling extracellular matrix degradation and the release of matrix-degrading MMPs, including MMP -2 and MMP-9, which facilitate intimal remodeling after angioplasty. Previous studies showed that increased levels of MMPs in coronary arteries undergoing percutaneous intervention may be associated with vascular remodeling and restenosis by promoting migration of vascular smooth muscle cells. Recently, Gregory et al. demonstrated that elevated serum activities of MMP-2 and -9 are associated with dramatically increased restenosis rates after PCI with implantation of DES. In patients with DESs, determination of MMP levels might be useful for identification of patients who are at high risk for ISR. However, not much is known about the relationship between MMPs and neointimal hyperplasia in patients with DES. In this study, the serum activity of MMP-2 and 9 were investigated in patients who had undergone follow-up coronary angiography with intravascular ultrasound (IVUS), which performed at 9 months post-DES implantation. Our aim was to evaluate if individual or combined levels of MMPs were associated with increased neointimal hyperplasia volume, that is, to evaluate the relationship, correlation between the levels of MMPs and neointimal hyperplasia volume.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at below P25 for not_applicable coronary-artery-disease

Timeline
Completed

Started Jan 2018

Shorter than P25 for not_applicable coronary-artery-disease

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 20, 2017

Completed
28 days until next milestone

First Posted

Study publicly available on registry

December 18, 2017

Completed
14 days until next milestone

Study Start

First participant enrolled

January 1, 2018

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2019

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2019

Completed
Last Updated

December 18, 2017

Status Verified

December 1, 2017

Enrollment Period

1 year

First QC Date

November 20, 2017

Last Update Submit

December 14, 2017

Conditions

Keywords

Matrix metalloproteinaseneointimal hyperplasia

Outcome Measures

Primary Outcomes (1)

  • Matrix Metalloproteinase expression correlate with neointimal plaque volume measure by intravascular ultrasound at 12 months follow up coronary angiography

    Endogenous MMP-2 and MMP-9 were measured in serum using a standardized enzyme-linked immunosorbent assay (ELISA; R\&D systems). This system measures the endogenous activity of the specific MMPs. Neointimal plaque volume measure by intravascular ultrasound at 12 months follow up coronary angiography

    One time frame - MMP sampling at 12 month follow up coronary angiography.

Study Arms (1)

coronary artery disease patients

EXPERIMENTAL

To define the Matrix metalloproteinases expression level in the neointimal hyperplasia induced by DES implantation

Device: DES implantation

Interventions

Coronary artery intervention using Drug eluting stent and Intravascular Ultrasound is performed.

Also known as: Intravascular Ultrasound
coronary artery disease patients

Eligibility Criteria

Age20 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Ischemic heart disease

You may not qualify if:

  • Left main coronary artery disease (defined as a stenosis of \> 50%)
  • Prior complex lesion morphologies (aorto-ostial, bifurcation with \>2.0 mm side branch, severe calcification, chronic total occlusion)
  • Long lesion that require more than two stents
  • Inflammatory conditions likely to be associated with an acute phase response, autoimmune and neoplastic disease
  • Advanced liver disease, renal failure, and valvular heart disease
  • If there was persistent cardiogenic shock, refractory pulmonary edema, or hemodynamic instability (blood pressure \<90/50 mmHg).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (2)

  • Katsaros KM, Kastl SP, Zorn G, Maurer G, Wojta J, Huber K, Christ G, Speidl WS. Increased restenosis rate after implantation of drug-eluting stents in patients with elevated serum activity of matrix metalloproteinase-2 and -9. JACC Cardiovasc Interv. 2010 Jan;3(1):90-7. doi: 10.1016/j.jcin.2009.10.023.

    PMID: 20129576BACKGROUND
  • Schoenhagen P, Vince DG, Ziada KM, Kapadia SR, Lauer MA, Crowe TD, Nissen SE, Tuzcu EM. Relation of matrix-metalloproteinase 3 found in coronary lesion samples retrieved by directional coronary atherectomy to intravascular ultrasound observations on coronary remodeling. Am J Cardiol. 2002 Jun 15;89(12):1354-9. doi: 10.1016/s0002-9149(02)02346-9.

    PMID: 12062727BACKGROUND

MeSH Terms

Conditions

Coronary Artery Disease

Interventions

Ultrasonography, Interventional

Condition Hierarchy (Ancestors)

Coronary DiseaseMyocardial IschemiaHeart DiseasesCardiovascular DiseasesArteriosclerosisArterial Occlusive DiseasesVascular Diseases

Intervention Hierarchy (Ancestors)

UltrasonographyDiagnostic ImagingDiagnostic Techniques and ProceduresDiagnosisMinimally Invasive Surgical ProceduresSurgical Procedures, Operative

Study Officials

  • Tae Soo Kang, PhD

    Dankook University Hospital 201 Manghyanro, Dongnam-gu, Cheonan-si, Chunchungnam-do, 31116, Republic of Korea

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Tae Soo Kang, PhD

CONTACT

Sung Soo Cho, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Model Details: Patients derived from a population of patients referred to 12 months follow-up coronary angiography for ischemic heart disease who are enable to be performed IVUS will be enrolled in the present trial, between December 2017 and December 2018. The study was an all comers design involving consecutive enrollment of patients with stable angina or acute coronary syndrome who had at least 1 coronary lesion (defined as a stenosis of \>50%) suitable for stent implantation 12 months before. The follow-up coronary angiography was performed according to standard techniques by experienced interventionalists only. Instent restenosis was defined as a diameter stenosis ≥50% of the vessel reference diameter by visual assessment. Detailed demographic details including anthropometric measurements, cardiovascular risk factors and medication use were recorded for the participants.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

November 20, 2017

First Posted

December 18, 2017

Study Start

January 1, 2018

Primary Completion

January 1, 2019

Study Completion

May 1, 2019

Last Updated

December 18, 2017

Record last verified: 2017-12

Data Sharing

IPD Sharing
Will share

De-identified individual participant data for all primary and secondary outcome measures will be made available.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
Data will be available within 1 year of study completion.
Access Criteria
Data acess requests will be reviewed by an external independent Review Panel.