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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
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

Full criteria on ClinicalTrials.gov

Sites (11)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
King's College
Coordinator of this site? Confirm its status
LondonUnited KingdomNot yet recruiting
Bart's Hospital
Coordinator of this site? Confirm its status
LondonUnited KingdomNot yet recruiting
Oxford University Hospital
Coordinator of this site? Confirm its status
OxfordUnited KingdomNot yet recruiting
Amsterdam University Medical Center
Coordinator of this site? Confirm its status
AmsterdamNetherlandsNot yet recruiting
Groningen University Medical Center
Coordinator of this site? Confirm its status
GroningenNetherlandsNot yet recruiting
Leids Universitair Medical Center
Coordinator of this site? Confirm its status
LeidenNetherlandsNot yet recruiting
Maastricht University Hospital
Coordinator of this site? Confirm its status
MaastrichtNetherlandsRecruiting
Utrecht University Medical Center
Coordinator of this site? Confirm its status
UtrechtNetherlandsNot yet recruiting
Hospital da Luz
Coordinator of this site? Confirm its status
LisbonPortugalNot yet recruiting
Lund University Hospital
Coordinator of this site? Confirm its status
LundSwedenNot yet recruiting
Karolinska University Hospital
Coordinator of this site? Confirm its status
StockholmSwedenNot yet recruiting

This page is information, not medical advice. Discuss any trial with your doctor.