NCT04353232

Brief Summary

The purpose of this study is to determine the impact of individually lifetime accumulated exposure to air and noise pollution on the incidence and prevalence of cardiovascular diseases (CVD) and mortality. Air as well as noise pollution have harmful effects on human health. Experimental and clinical studies have shown a strong impact between particulate matter (PM2.5) and cardiovascular disease (CVD). Prolonged exposure to PM2.5 has been associated with the development of atherosclerosis and adverse cardiovascular events. However, also short-term exposure has been linked to acute coronary events. PM2.5 is, however, a combination of many components of specific pollutants that have a size of two and a half microns or less in width. However, there is a knowledge gap, as investigation into which specific components of air pollutants that contribute the most to the development of CVD is lacking. There is a need to adopt and encourage preventive measures but also put in place environmental policies that are effective in promoting the reduction of exposure to pollutants. We want to aid in this shift by showing which specific pollutants contribute the most to the development of CVD so that we can better target these specific air pollutants for better prevention initiatives.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
33,723

participants targeted

Target at P75+ for all trials

Timeline
4mo left

Started Jan 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

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

Study Progress95%
Jan 2020Sep 2026

Study Start

First participant enrolled

January 2, 2020

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

April 15, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 20, 2020

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2022

Completed
4.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2026

Expected
Last Updated

October 24, 2023

Status Verified

October 1, 2023

Enrollment Period

2 years

First QC Date

April 15, 2020

Last Update Submit

October 20, 2023

Conditions

Keywords

Air PollutionEnvironmental ExposureDANCAVASVIVADEHM/UBN/AirGISNoise Pollution

Outcome Measures

Primary Outcomes (4)

  • Subclinical and Clinical CVD events, CVD-specific mortality, all-cause mortality

    The amount of accumulated air as well as noise pollution as an independent significant risk factor for clinical CVD and mortality, when accounting for all traditional cardiovascular risk factors.

    40 years

  • Maximal infrarenal aortic diameter in mm and presence of abdominal aortic Aneurisme (Yes/N0)

    Aortic abdominal aneurism

    40 years

  • Coronary artery calcium (CAC)

    the total amount of calcium in the coronary artery

    40 years

  • Measures of blod pressure on the ankle in mmHg and brachial in mmHg to determined periferal arterial disease (PAD)

    lowest measured ankle brachial blood pressure index or presence of PAD

    40 years

Study Arms (2)

DANCAVAS trial

We performed a population-based, parallel-group, randomized, controlled trial involving men 65 to 74 years of age living in 15 Danish municipalities. The participants were randomly assigned in a 1:2 ratio to undergo screening (the invited group) or not to undergo screening (the control group) for subclinical cardiovascular disease. Randomization was based on computer-generated random numbers and stratified according to municipality. A total of 46,611 participants underwent randomization. After exclusion of 85 men who had died or emigrated before being invited to undergo screening, there were 16,736 men in the invited group and 29,790 men in the control group; 10,471 of the men in the invited group underwent screening (62.6%). In intention-to-treat analyses, after a median follow-up of 5.6 years, 2106 men (12.6%) in the invited group and 3915 men (13.1%) in the control group had died.

VIVA trial

In this randomised controlled trial, we randomly allocated (1:1) all men aged 65-74 years living in the Central Denmark Region to screening for abdominal aortic aneurysm, peripheral arterial disease, and hypertension, or to no screening. We based allocation on computer-generated random numbers from 1 to 100 in blocks of 1067 to 4392, stratified by 19 municipalities. Only the non-screening group and the investigator assessing outcomes were masked. We invited participants who were found to have abdominal aortic aneurysm or peripheral arterial disease back for confirmation and eventual initiation of relevant pharmacological therapy. We further offered participants with abdominal aortic aneurysm annual control or surgical repair. We referred participants with suspected hypertension to their general practitioner. The primary outcome was all-cause mortality, assessed 5 years after randomisation. This trial is registered at ClinicalTrials.gov, number NCT00662480.

Eligibility Criteria

Age60 Years - 74 Years
Sexmale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Men aged 60-74 from DANCAVAS and VIVA trials

You may qualify if:

  • \- male gender, age between 60-74 years living on the Island of Funen, or in the surrounding communities of Vejle, Silkeborg and Nykøbing Falster.

You may not qualify if:

  • VIVA study
  • \- male gender, age between 65-74 years living in the region of Mid Denmark (Viborg County).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cardiovascular Research Unit - OUH Svendborg

Svendborg, 5700, Denmark

Location

Related Publications (1)

  • Mayntz SP, Mohamed RA, Mejldal A, Moller JK, Lindholt JS, Diederichsen AC, Frohn LM, Brandt J, Ketzel M, Khan J, Lambrechtsen J. Long-Term Road Traffic Noise, Air Pollution, and Cardiovascular Disease: AIRCARD: A Prospective Cohort Study. JACC Adv. 2025 Jun;4(6 Pt 1):101787. doi: 10.1016/j.jacadv.2025.101787. Epub 2025 May 21.

MeSH Terms

Conditions

Cardiovascular DiseasesArteriosclerosis

Condition Hierarchy (Ancestors)

Arterial Occlusive DiseasesVascular Diseases

Study Officials

  • Stephan P Mayntz, MD, MPH

    Odense University Hospital

    PRINCIPAL INVESTIGATOR
  • Jess Lambrechtsen, Prof., MD

    Odense University Hospital

    PRINCIPAL INVESTIGATOR
  • Roda A Mohamed, MD

    Odense University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
10 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor, MD, PhD, Head of Research

Study Record Dates

First Submitted

April 15, 2020

First Posted

April 20, 2020

Study Start

January 2, 2020

Primary Completion

January 1, 2022

Study Completion (Estimated)

September 1, 2026

Last Updated

October 24, 2023

Record last verified: 2023-10

Locations