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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Emil N Holck, MD +45 31419472
eh@clin.au.dk


Evald Christiansen, MD PhD +45 78452028
evald.christiansen@dadlnet.dk


Study Location:

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Be Part of Research - Trial Details - ISCHEMIA-CTO Trial - Revascularisation or Optimal Medical Therapy of CTO

ISCHEMIA-CTO Trial - Revascularisation or Optimal Medical Therapy of CTO

Recruiting

Open to: ALL

Age: 18.0 - N/A

Medical Conditions

Heart Diseases
Myocardial Ischemia
Coronary Artery Disease
Ischemia


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


Study design

Prospective randomized open labeled multicenter study

Hypotheses

1. In asymptomatic patients with ≥ 10% of myocardial ischemia: PCI (Percutaneous Coronary Intervention) with latest generation of drug eluting stents is superior to optimal medical therapy in terms of relative reduction in MACCE (Major Adverse Cardiovascular and Cerebrovascular events). 2. In symptomatic patients with ≥ 5% of myocardial ischemia: PCI with latest generation of drug eluting stents is superior to optimal medical therapy (OMT) in terms of improved life quality measured as an increase of SAQ (Self Assessment Questionnaire) score of 8 points after 6 months.

Inclusion Criteria

* CTO in native coronary artery * Myocardial ischemia in a territory supplied by CTO assessed by nuclear imaging. * Age ≥18 yrs. * Able to provide written Informed consent and willing to comply with the specified follow-up contacts * Target artery ≥ 2.5 mm

Prior to randomization all patients undergo 3 months of OMT. Subsequently the population will be divided into:

Cohort A: Asymptomatic (CCS \< 2 and SAQ QoL \> 60) patients with myocardial ischemia (≥ 10% of LV) in a territory supplied by CTO

Cohort B: Symptomatic patients (CCS class ≥ 2 and/or SAQ QoL score ≤ 60 after treating non CTO lesions and after OMT) with Myocardial ischemia (5% of LV) in a territory supplied a CTO

Cohort C: patients enrolled but not randomized in cohort A or B

Exclusion criteria (for both cohort A and B)

* NSTEMI or STEMI within 1 month * Coronary anatomy not suitable for CTO-procedure * Coronary artery disease involving the left main/three-vessel disease with indication for CABG following heart team conference * Life expectancy \< 2 years * Severe chronic pulmonary disease (FEV1 \< 30 % of predicted value) * Contraindication to dual anti-platelet therapy * Pregnancy * eGFR \< 30 mL/min/1.73 m2 * In multi-vessel disease: if it is deemed unsafe to treat the non-CTO lesion first. * Severe valvular heart disease

Primary endpoint

Cohort A: Composite endpoint of MACCE (all-cause mortality, stroke, any myocardial infarction, clinically driven revascularization\*), hospitalization for heart failure or incidence of malignant arrhythmias.

\*CCS class ≥ 2 and/or QoL score \< 60. Same criteria used as for allocation to Cohort B

Cohort B: SAQ Quality of Life Assessment after 6 months.

Number of patients

1,560 (1200 in cohort A/360 in cohort B

Follow up time

Cohort A: 5 years Cohort B: 6 months

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

Nov 2018 Nov 2028

Publications

"Rinfret S, Sandesara PB. Reducing Ischemia With CTO PCI: Good News, But Questions Remain. JACC Cardiovasc Interv. 2021 Jul 12;14(13):1419-1422. doi: 10.1016/j.jcin.2021.05.028. No abstract available."; "34238552"

INTERVENTIONAL

Intervention Type : PROCEDURE
Intervention Description : PCI of Chronic Total Occlusions

Intervention Arm Group : PCI;

Intervention Type : OTHER
Intervention Description : Initiation and titration of optimal medical therapy in the control arm.

Intervention Arm Group : OMT;



You can take part if:



You may not be able to take part if:


This is in the inclusion criteria above


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Belfast Health and Social Care Trust, Department of Cardiology
    Belfast
    BT9 7AB
  • University Hospital Bristol
    Bristol
    BS1 3NU
  • Barts Health NHS
    London
    SW17 0QT
  • St George's University Hospital
    London
    SW17 0QT

Evald Christiansen, MD PhD +45 78452028
evald.christiansen@dadlnet.dk


Emil N Holck, MD +45 31419472
eh@clin.au.dk



The study is sponsored by Aarhus University Hospital Skejby




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Read full details for Trial ID: NCT03563417
Last updated 05 August 2024

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