ClinicalTrials.gg
CompletedNCT03395041ATHERODENTUpdated Aug 2, 2022

Periodontal Disease, Inflammation and Acute Coronary Syndromes

An observational study in Coronary Stenosis, Periodontal Diseases and Acute Coronary Syndrome, sponsored by Cardio Med Medical Center. Completed at 1 site in Romania. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-08-02.

Sponsored by Cardio Med Medical Center · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
149
Ages
18 Years and older
Sex
All
01

Study summary

Recent studies have shown that the systemic inflammation caused by periodontal disease (PD) can determine important changes in the coronary arteries, favoring atherosclerosis progression and development of acute coronary syndromes (ACS). The aim of ATHERODENT study is to assess the interrelation between PD, inflammation and progression of coronary atherosclerosis in patients with ACS. Material and methods: This case-control observational study will enroll 100 patients (group 1 - ACS and associated PD, and group 2 -ACS and no PD), in whom the following data will be collected: (1) demographic and clinical data, (2) cardiovascular risk factors, (3) full characterization of PD markers, (4) systemic inflammatory biomarkers, (5) imaging biomarkers derived from transthoracic echocardiography, computed tomography, coronary angiography, optical coherence tomography and intravascular ultrasound, and (6) assessment of the presence of specific oral bacteria in samples of coronary plaques collected by coronary atherectomy, which will be performed during percutaneous revascularization interventions, when indicated in selected cases, in the atherectomy sub-study. The follow-up will be performed at 1, 3, 6, 12, 15, 18 and 24 months. The primary endpoint of the study will be represented by the rate of major adverse cardiovascular events (MACE rates) in PD vs non-PD patients and in correlation with: (1) the level of systemic inflammation triggered by PD and/or by ACS at baseline; (2) the vulnerability degree of atheromatous plaques in the coronary tree (culprit and non-culprit lesions); and (3) the presence and burden of oral bacteria in atheromatous plaques. Secondary endpoints will be represented by: (1) the rate of progression of vulnerability degree of non-culprit coronary plaques; (2) the rate of progression of atheromatous burden and calcium scoring of the coronary tree; and (3) the rate of occurrence of left ventricular remodeling and postinfarction heart failure.

Read the detailed description

ATHERODENT is a case-controlled observational clinical study, conducted in two clinical sites: University of Medicine and Pharmacy Tirgu Mures, Romania, and Cardio Med Medical Center - Laboratory of Advanced Research in Multimodality Imaging.

The primary objective of ATHERODENT is to assess the interrelation between PD, inflammation and atherosclerosis progression in patients who suffered an ACS and have concomitant PD vs those with ACS and no PD, using (1) invasive and non-invasive imaging techniques for characterization of vulnerable coronary plaques; (2) full characterization of PD; and (3) complex assessment of systemic vulnerability based on systemic inflammation-related biomarkers.

The secondary objectives of ATHERODENT are:

  1. to study the correlation between PD and coronary plaque vulnerability
  2. to assess the correlation between PD and severity of coronary atherosclerosis
  3. to assess the presence and burden of oral bacteria in coronary atheromatous plaques collected during atherectomy and their relation with plaque vulnerability and evolution following an ACS (in the atherectomy sub-study).

Baseline will be considered as the moment of the index event and related hospitalization. The index event will be considered the ACS and patients will be randomized in the study at maximum 7 days post ACS. The follow-up visits will be performed at 1, 3, 6, 12, 15, 18 and 24 months after randomization.

The following procedures will be performed at baseline:

  1. recording of demographic and clinical data (age, gender, personal history)
  2. determination of serum lipids, blood counts, glycemia, urea, creatinine, liver enzymes
  3. determination of the biomarkers expressing the severity of the acute coronary syndrome and heart damage (hs-Troponin, NT-proBNP)
  4. determination of serum levels inflammatory biomarkers and adhesion molecules at the moment of the index event (hs-CRP, matrix metalloprotease, interleukin-6, VCAM, ICAM)
  5. determination of specific micro-RNAs related to plaque vulnerability
  6. echocardiography (+ speckle tracking) for assessment of left ventricular function and size
  7. full characterization of PD (dental plaque/tartar, gingival retraction, gingival bleeding, etc.)
  8. microbiological determination of oral bacteria from the periodontal pockets
  9. non-invasive imaging by coronary angioCT for all the coronary tree and characterization of vulnerability markers and atherosclerosis severity, using surrogate imaging biomarkers such as calcium score, necrotic core, plaque burden, low density atheroma, positive remodeling, epicardial fat volume
  10. invasive imaging performed during invasive revascularization procedures, using intracoronary imaging techniques (OCT, IVUS) and quantification of invasive imaging biomarkers in culprit and non-culprit lesions, such as macrophage content, thickness of fibrous cap and necrotic core.
  11. atherectomy of coronary culprit atheromatous plaques (in the atherectomy sub-study), performed during the revascularization procedure when indicated, in selected cases, followed by histological examination of the samples collected in order to identify specific antigens related to oral microbiota in the atheromatous tissue of coronary vulnerable plaques.

Follow-up will be performed at 1, 3, 6, 12, 15, 18 and 24 months after randomization, including assessment of clinical data, echocardiography and registration of MACE and adverse events.

In addition, complex imaging assessment using Angio CT will be performed at 2 years to assess atherosclerosis progression.

02

Conditions studied

  • Coronary Stenosis
  • Periodontal Diseases
  • Acute Coronary Syndrome
  • Non-ST Elevation Myocardial Infarction
  • Unstable Angina
  • Acute Myocardial Infarction
  • Atherosclerosis
  • Atheromatous Plaques

Keywords

  • vulnerable plaque, CT imaging, oral bacteria, inflammation
03

In context

Coronary Stenosis

326 studies on the registry are indexed under Coronary Stenosis; 57 are open to participants now.

This study's enrollment of 149 is below the median of 200 across 125 observational studies indexed under Coronary Stenosis.

Browse Coronary Stenosis studies →

Lead sponsor

Cardio Med Medical Center is the lead sponsor of 11 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with acute coronary syndromes (unstable angina or NSTEMI), who undergo invasive coronary angiography +/- revascularization (according to local protocols).

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients aged at least 18 years;
  • Patients who have signed the written ;
  • Patients with ACS (unstable angina or non-ST segment elevation myocardial infarction) occurring with maximum 7 days prior to enrollment

Exclusion criteria

Exclusion Criteria:

  • Patient's refusal to participate in the study;
  • Sensitivity to the contrast substance;
  • Women of reproductive age who do not use methods;
  • Pregnant women;
  • Any within the last 5 years;
  • Any disease or comorbidity that can reduce to less than 2 years;
  • Acute or chronic renal failure;
  • Non-compliant patients who, in the opinion of the investigators, will not present to follow-up.
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
149 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • ATD - SG 01

    Patients with acute coronary syndrome in whom dental examination performed in the first 7 days after the index event revealed the presence of periodontal disease. They will undergo complex cardiac imaging tests to assess plaque vulnerability and severity of coronary artery disease.

    Diagnostic Test: cardiac imaging tests

  • ATD - SG 02

    Patients with acute coronary syndrome in whom dental examination performed in the first 7 days after the index event did not reveal the presence of periodontal disease. They will undergo complex cardiac imaging tests to assess plaque vulnerability and severity of coronary artery disease.

    Diagnostic Test: cardiac imaging tests

Interventions

  • Diagnostic testcardiac imaging tests

    cardiac computed tomography, echocardiography, intravascular ultrasound, optical coherence tomography

06

What researchers measure

Primary outcomes

  1. The rate of major adverse cardiovascular events (MACE rates).

    Cardiac death, need for target vessel revascularization (with target vessel defined as the vessel with a vulnerable plaque), or reinfarction.

    Time frame: 24 months

Secondary outcomes

  1. The rate of progression of vulnerability degree of non-culprit coronary plaques

    Increased severity in vulnerability indexes determined by cardiac imaging tests in the coronary tree

    Time frame: 24 months

  2. The rate of progression of atheromatous burden and calcium scoring

    Increase in atheromatous plaque burden and calcium scoring of the entire coronary tree as determined by Cardio CT

    Time frame: 24 months

  3. The occurrence of left ventricular remodeling and post-infarction heart failure

    Development of ventricular remodeling defined as increase in ventricular diameters with\>15% compared to baseline, and of post-infarction heart failure, defined as left ventricular ejection fraction \<45% in the posti-infarction period

    Time frame: 24 months

07

Study locations

1 site
  • Cardio Med
    Târgu-Mureş, Mures, Romania
08

References and documents

Individual participant data

Plan to share: Yes — IPD will be made available to other researchers from the same group and to other collaborating groups and can be used for further statistical sub-analysis

Supporting information: Study protocol, Statistical analysis plan, Clinical study report

Time frame: Data will become available immediately after completion of the enrolment and will remain available for at least 5 years.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 2, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03395041
Lead sponsor
Cardio Med Medical Center
Collaborators
University of Targu Mures, Romania, University Hospital of Targu Mures, Romania
Responsible party
Sponsor
First posted
Jan 10, 2018
Start date
May 15, 2018
Primary completion
Jan 15, 2021
Completion
Jun 1, 2021
Last update
Aug 2, 2022

Study contacts

Theodora Benedek, Prof
principal investigator · University of Medicine and Pharmacy Tirgu Mures, CardioMed Medical Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2019. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion