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VT AblationPhase 4APOLO-VTNCT07746336

Treatment Based on High Precision Cardiac Mapping

A Phase 4 study testing ACORYS Mapping System in people with VT Ablation and Arrhythmic Burden, run by Hospital Clinic of Barcelona at 1 site in Spain.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

APOLO-VT aims to evaluate the feasibility, safety, and clinical impact of an integrated multimodal mapping workflow combining non-invasive structural and functional substrate characterization using Volumetric Electrocardiographic Imaging (ECGi) with invasive Electroanatomical Mapping (EAM) to support Ventricular… Read more about this study

Who is it for?
Ages 18 to 99 years
What is being tested?
ACORYS Mapping System
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteSpain
Study dates
15 Jul 2026to 31 Dec 2028
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age ≥18 years.
  • Diagnosis of structural heart disease (ischemic or non-ischemic cardiomyopathy).
  • Documented sustained monomorphic VT (clinical or inducible), or recurrent ICD therapies for VT.
  • Scheduled for catheter ablation of VT according to current international guidelines.
  • Ability to provide written informed consent.
  • Ability to remain upright or seated to allow a video for 3D torso reconstruction for ECGi acquisition.

Who cannot join

  • Age <18 years.
  • Pregnant or breastfeeding women.
  • Inability to provide informed consent due to physical or mental condition.
  • Contraindication to computed tomography or cardiac magnetic resonance (magnetic resonance imaging-incompatible devices, claustrophobia).
  • Contraindication to contrast agents (gadolinium allergy or severe renal dysfunction with estimated glomerular filtration rate <30 mL/min/1.73 m²).
  • Inability to remain upright for torso 3D reconstruction required for ECGi.
  • Life expectancy <1 year due to non-cardiac comorbidity.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Spain1 site, 1 recruiting

  • Hospital Clinic, University of Barcelona

    Barcelona, 08036

    Ivo Roca-Luque, M.D., Ph.D., iroca@clinic.cat

    Lluis Mont, M.D., Ph.D., lmont@clinic.cat

    Recruiting

Other trials in Spain

About this study

Official title: Treatment Based on High Precision Cardiac Mapping: Advancing Personalized Outcomes Through Optimized Localization

APOLO-VT aims to evaluate the feasibility, safety, and clinical impact of an integrated multimodal mapping workflow combining non-invasive structural and functional substrate characterization using Volumetric Electrocardiographic Imaging (ECGi) with invasive Electroanatomical Mapping (EAM) to support Ventricular tachycardia (VT) ablation targeting and verification.

Being tested
ACORYS Mapping System

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ACORYS Mapping SystemDevice

    ADAS 3D (ADAS 3D Medical, Barcelona; CE 714517) and the ACORYS Mapping System (Corify Care SL, Madrid; CE 775709) are two independently operating, CE-marked devices used within their approved intended use. ADAS 3D processes cardiac magnetic resonance images to characterize myocardial scar, border zone, and conduction corridors. ACORYS performs non-invasive electrocardiographic mapping, importing the ADAS 3D-derived anatomy to contextualize its electrophysiological maps. The structural and functional information from both devices is reviewed by the treating electrophysiologist as decision-support information, alongside invasive electroanatomic mapping; the ablation strategy and all treatment decisions remain at the physician's clinical discretion.

Study groups in NCT07746336
Study groupRoleWhat they receive
Ablation strategyExperimentalAblation is guided by an integrated non-invasive mapping strategy, combining structural targets from late gadolinium enhancement cardiac magnetic resonance and/or functional targets (deceleration zones) from non-invasive Volumetric ECGi in sinus rhythm (SR) and pacing protocol; both are merged with invasive electroanatomic mapping. Before ablation, programmed stimulation assesses VT inducibility; if VT is induced, its Volumetric ECGi-derived critical isthmus is added as a further target. Lesions are delivered to these non-invasively defined target regions, with adequacy defined as loss of local capture on pacing at the ablation site. Afterwards, SR and paced Volumetric ECGi remapping reassesses residual deceleration zones, with further ablation and remapping if substrate persists. Programmed stimulation is repeated, with invasive remapping and ablation for validation. Acute procedural success requires VT non-inducibility and elimination of relevant functional substrate.
Receives: Device: ACORYS Mapping System

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. VT recurrence

    Recurrence of sustained ventricular tachycardia after the index ablation.

    Measured: 12 months

Secondary outcomes (4)

  1. Acute procedural outcomes

    Rate of acute procedural success, defined as non-inducibility of sustained monomorphic ventricular tachycardia and absence of relevant residual deceleration zones on post-ablation remapping. Procedural efficiency (procedure duration, fluoroscopy time, radiofrequency application time).

    Measured: Baseline

  2. Procedure complications

    Acute and late complications related to ablation (vascular complications, tamponade, stroke, and mortality) as well as late complications (pericarditis, phrenic nerve injury, device-related events)

    Measured: Baseline

  3. Electrophysiological endpoints

    Correlation between non-invasive structural and functional targets (defined by the APOLO-VT ablation strategy) and invasive electrogram characteristics (low-voltage zones, fractionated or late potentials). Assessment of whether these non-invasive targets predict VT inducibility after ablation.

    Measured: Baseline

  4. Clinical outcomes during follow-up

    Effect of the APOLO-VT ablation strategy on ICD therapies, heart failure hospitalization, and all-cause mortality during follow-up.

    Measured: 12 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Aug 2026
  2. Study start15 Jul 2026
  3. Primary completion31 Dec 2027 (estimated)
  4. Study completion31 Dec 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07746336
Sponsor's protocol ID
APOLO-VT
Acronym
APOLO-VT
Status last verified
Aug 2026
First submitted
20 Jul 2026
Last updated
25 Aug 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Zeppenfeld K, Tfelt-Hansen J, de Riva M, Winkel BG, Behr ER, Blom NA, Charron P, Corrado D, Dagres N, de Chillou C, Eckardt L, Friede T, Haugaa KH, Hocini M, Lambiase PD, Marijon E, Merino JL, Peichl P, Priori SG, Reichlin T, Schulz-Menger J, Sticherling C, Tzeis S, Verstrael A, Volterrani M; ESC Scientific Document Group. 2022 ESC Guidelines for the management of patients with ventricular arrhythmias and the prevention of sudden cardiac death. Eur Heart J. 2022 Oct 21;43(40):3997-4126. doi: 10.1093/eurheartj/ehac262. No abstract available.

    PubMed 36017572

  • Arenal A, Avila P, Jimenez-Candil J, Tercedor L, Calvo D, Arribas F, Fernandez-Portales J, Merino JL, Hernandez-Madrid A, Fernandez-Aviles FJ, Berruezo A. Substrate Ablation vs Antiarrhythmic Drug Therapy for Symptomatic Ventricular Tachycardia. J Am Coll Cardiol. 2022 Apr 19;79(15):1441-1453. doi: 10.1016/j.jacc.2022.01.050.

    PubMed 35422240

  • Tung R, Xue Y, Chen M, Jiang C, Shatz DY, Besser SA, Hu H, Chung FP, Nakahara S, Kim YH, Satomi K, Shen L, Liang E, Liao H, Gu K, Jiang R, Jiang J, Hori Y, Choi JI, Ueda A, Komatsu Y, Kazawa S, Soejima K, Chen SA, Nogami A, Yao Y; PAUSE-SCD Investigators. First-Line Catheter Ablation of Monomorphic Ventricular Tachycardia in Cardiomyopathy Concurrent With Defibrillator Implantation: The PAUSE-SCD Randomized Trial. Circulation. 2022 Jun 21;145(25):1839-1849. doi: 10.1161/CIRCULATIONAHA.122.060039. Epub 2022 May 4.

    PubMed 35507499

  • Cronin EM, Bogun FM, Maury P, Peichl P, Chen M, Namboodiri N, Aguinaga L, Leite LR, Al-Khatib SM, Anter E, Berruezo A, Callans DJ, Chung MK, Cuculich P, d'Avila A, Deal BJ, Della Bella P, Deneke T, Dickfeld TM, Hadid C, Haqqani HM, Kay GN, Latchamsetty R, Marchlinski F, Miller JM, Nogami A, Patel AR, Pathak RK, Saenz Morales LC, Santangeli P, Sapp JL, Sarkozy A, Soejima K, Stevenson WG, Tedrow UB, Tzou WS, Varma N, Zeppenfeld K; ESC Scientific Document Group. 2019 HRS/EHRA/APHRS/LAHRS expert consensus statement on catheter ablation of ventricular arrhythmias. Europace. 2019 Aug 1;21(8):1143-1144. doi: 10.1093/europace/euz132.

    PubMed 31075787

  • Laan D, Hopman LHGA, Figueras I Ventura RM, Sore B, Allaart CP, Kemme MJB, Gotte MJW, Postema PG, Bhagirath P. Ventricular tachycardia substrate mapping with cardiac computed tomography and cardiac magnetic resonance imaging: Head-to-head comparison of two clinically available postprocessing platforms. Heart Rhythm. 2026 Mar;23(3):721-729. doi: 10.1016/j.hrthm.2025.09.028. Epub 2025 Sep 19.

    PubMed 40976541

  • Reventos-Presmanes J, Hernandez-Romero I, Pellicer-Sendra B, Guillen-Buisan E, Serrano-Campaner J, Invers-Rubio E, Regany-Closa M, Garre P, Borras R, Costafreda A, Arbelo E, Tolosana JM, Guasch E, Althoff TF, Guichard JB, Falzone PV, Vazquez-Calvo S, Ayauja E, Guillem MS, Porta-Sanchez A, Mont L, Climent AM, Roca-Luque I. Noninvasive assessment of the ventricular arrhythmogenic substrate using electrocardiographic imaging during sinus rhythm: The NIAVAS study. Heart Rhythm. 2026 Feb;23(2):249-263. doi: 10.1016/j.hrthm.2025.07.020. Epub 2025 Jul 17.

    PubMed 40683550

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing ACORYS Mapping System in people with VT Ablation and Arrhythmic Burden, run by Hospital Clinic of Barcelona at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 25 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

VT recurrence (time frame: 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07746336, which also lists 6 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Aug 2026.

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