NCT05564793Recruiting
Improving CRT Outcome With Non-Invasive Cardiac Mapping
ICONIC-M: Improving CRT Outcome With Non-Invasive Cardiac Mapping. A Multicenter Randomized Controlled Study To Assess Patient Response to CRT Comparing ECGI Map Guided Left Ventricular Lead Placement With Empirical Lead Placement
Source: ClinicalTrials.gov · Last updated 7 Aug 2025 · Not updated for over 12 months - ask the site whether it is still open
Brief summary (registry, in English)
The ICONIC-M study is a multicenter randomized controlled study to assess patient response to CRT comparing ECGI map guided left ventricular lead placement with empirical lead placement. The hypothesis of the investigation is to demonstrate that CRT LV lead implantation guided by a map obtained with the Amycard 01C System and showing LV Latest Electrical Activated Site (LEAS) in combination with a CT cardiac venogram improves CRT outcome. An improved CRT outcome is defined as a ≥30% increase in LVESVi reduction compared to empiric CRT LV lead implantation. The sample size will be 136 in the Control arm and 194 in the Active arm. A total of 330 subjects. The study follows an adaptive design, in where one interim analysis at 70% enrollment will be performed. The sponsor may stop enrollment when either one of the following conditions apply: * Statistical significant difference between groups in the primary endpoint has been reached confirming a difference in reduction of the LVESVi of ≥30% in the Active arm compared to the Control arm * There is no trend or reason to believe statistical significance will be reached with a higher sample size. Statistical significance (primary endpoint) is reached at interim (70%) or at total (100%) of enrollment with a significance value P lower than 0.025.
- Status (registry)
- Recruiting
- Study type
- Interventional
- Enrollment
- 330 (estimated)
- First submitted
- 29 Sept 2022
- Start date
- 20 Dec 2023
- Primary completion date
- Sept 2027
- Lead sponsor
- EP Solutions SA
- Diseases
- Heart failure
- NCT number
- NCT05564793
What you commit to
- Study type: Interventional
- Planned participants: 330
- From 20 Dec 2023 to the primary completion date, Sept 2027
- 11 sites in 4 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Previous cardiac pacemaker/CRT/ICD implantation
Other illness
- Acute diseases or exacerbations of chronic diseases (as per the investigator's discretion)
- Contraindications to body surface ECG mapping: (ongoing wound healing on the chest (e.g. recent surgery), skin diseases, allergic reactions to surface mapping electrodes and medical band-aid)
Lab values
- Pregnant, or subjects planning to become pregnant within 6 months after signing informed consent (a documented negative pregnancy test (serum or blood) is required for women of childbearing potential)
Other
- Contraindications to CT scanning
- Incapacitated individuals, defined as persons who are mentally ill, mentally handicapped, or individuals without legal authority, are excluded from the study population
Who the study is looking for
- Appropriately signed and dated informed consent.
- Age ≥18 years at time of consent.
- Received optimal medical therapy for HF for at least 3 months before screening
- Patient in sinus rhythm at the time of screening fulfilling Class I or IIa criteria per ESC CRT guidelines 2013 .
- Patient is intended for placement of a CRT device with biventricular (BiV) pacing.
Age in the registry: 18 years to 85 years · Sex: All · Does not accept healthy volunteers
Sites (11)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| King's College Coordinator of this site? Confirm its status | London | United Kingdom | Not yet recruiting |
| Bart's Hospital Coordinator of this site? Confirm its status | London | United Kingdom | Not yet recruiting |
| Oxford University Hospital Coordinator of this site? Confirm its status | Oxford | United Kingdom | Not yet recruiting |
| Amsterdam University Medical Center Coordinator of this site? Confirm its status | Amsterdam | Netherlands | Not yet recruiting |
| Groningen University Medical Center Coordinator of this site? Confirm its status | Groningen | Netherlands | Not yet recruiting |
| Leids Universitair Medical Center Coordinator of this site? Confirm its status | Leiden | Netherlands | Not yet recruiting |
| Maastricht University Hospital Coordinator of this site? Confirm its status | Maastricht | Netherlands | Recruiting |
| Utrecht University Medical Center Coordinator of this site? Confirm its status | Utrecht | Netherlands | Not yet recruiting |
| Hospital da Luz Coordinator of this site? Confirm its status | Lisbon | Portugal | Not yet recruiting |
| Lund University Hospital Coordinator of this site? Confirm its status | Lund | Sweden | Not yet recruiting |
| Karolinska University Hospital Coordinator of this site? Confirm its status | Stockholm | Sweden | Not yet recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.