NCT04054895

Brief Summary

The LEVEL-AT Trial (LEft VEntricuLar Activation Time Shortening with Physiological Pacing vs Biventricular Resynchronization therapy: a randomized study) is a non-inferiority study that aims to determine if physiological pacing could decrease the left ventricular activation time compared with biventricular therapy.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
70

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Sep 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

August 7, 2019

Completed
6 days until next milestone

First Posted

Study publicly available on registry

August 13, 2019

Completed
19 days until next milestone

Study Start

First participant enrolled

September 1, 2019

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2022

Completed
Last Updated

August 4, 2022

Status Verified

August 1, 2022

Enrollment Period

2.8 years

First QC Date

August 7, 2019

Last Update Submit

August 3, 2022

Conditions

Keywords

Physiological pacingResynchronization therapyElectrocardiographic imaging

Outcome Measures

Primary Outcomes (1)

  • Left ventricular activation time.

    Left ventricular activation time measured by eletrocardiographic imaging.

    45 days

Secondary Outcomes (7)

  • QRS duration.

    Implant, 6 months and 12 months.

  • Left ventricular activation time.

    6 months and 12 months.

  • Change in left ventricular function.

    6 months and 12 months.

  • Change in end-systolic volume.

    6 months and 12 months.

  • Change in NYHA functional class.

    6 months and 12 months.

  • +2 more secondary outcomes

Study Arms (2)

Physiological pacing

EXPERIMENTAL

Pacing the his-purkinje system. Crossover to biventricular CRT will be allowed in the following situations: failed physiological pacing lead implantation; high thresholds (\>3.5V / 1ms); no shortening of QRS (shortening \<20%) or failure to meet non-selective HBP criteria \[Europace. 2019 Oct 9. doi: 10.1093/europace/euz275\].

Device: Lead placed in the His-Purkinje system in order to achieve QRS shortening.

Biventricular resynchronization therapy

ACTIVE COMPARATOR

Pacing from the right ventricular and coronary sinus leads. Electrocardiographic optimization with fusion-optimized intervals. Crossover from biventricular CRT to physiological pacing will be allowed in the following situations: coronary sinus cannot be cannulated; no lateral or posterolateral branches; or phrenic stimulation.

Device: Lead is placed in a tributary of the coronary sinus.

Interventions

Physiologic pacing to achieve QRS shortening. If the patient has indication of stimulation (AV block), a backup lead will be implanted in the right ventricle. All patients will have a lead placed in the right atrium (except those that have permanent atrial fibrillation).

Physiological pacing

Biventricular Resynchronization Therapy is the use of a pacemaker with two endocardial leads placed in the right atrium and right ventricle. The third lead is placed in a tributary of the coronary sinus.

Biventricular resynchronization therapy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The patient must indicate their acceptance to participate in the study by signing an informed consent document.
  • The patient must be ≥ 18 years of age.
  • Left bundle branch block, QRS ≥130 and FEVI \<=35% (Indication of cardiac resynchronization IA or IB ESC Guidelines). No indication of stimulation for AV block.
  • Patients with indication of resynchronization therapy for ventricular dysfunction and indication of cardiac stimulation for AV block according to ESC Guidelines (IA ESC Guidelines).
  • Non-left bundle branch block, QRS ≥150 and FEVI \<=35% (Indication of cardiac resynchronization IIaB ESC Guidelines).

You may not qualify if:

  • Myocardial infarction, unstable angina or cardiac revascularization during the previous 3 months.
  • Pregnancy.
  • Participating currently in a clinical investigation that includes an active treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Clinic de Barcelona

Barcelona, Select, 08036, Spain

Location

Related Publications (2)

  • Pujol-Lopez M, Ferro E, Borras R, Garre P, Guasch E, Jimenez-Arjona R, Garcia-Ribas C, Doltra A, Niebla M, Carro E, Roca-Luque I, Guichard JB, Puente JL, Uribe L, Vazquez-Calvo S, Castel MA, Arbelo E, Porta-Sanchez A, Sitges M, Tolosana JM, Mont L. Stepwise application of ECG and electrogram-based criteria to ensure electrical resynchronization with left bundle branch pacing. Europace. 2023 Jun 2;25(6):euad128. doi: 10.1093/europace/euad128.

  • Pujol-Lopez M, Jimenez-Arjona R, Garre P, Guasch E, Borras R, Doltra A, Ferro E, Garcia-Ribas C, Niebla M, Carro E, Puente JL, Vazquez-Calvo S, Invers-Rubio E, Roca-Luque I, Castel MA, Arbelo E, Sitges M, Brugada J, Tolosana JM, Mont L. Conduction System Pacing vs Biventricular Pacing in Heart Failure and Wide QRS Patients: LEVEL-AT Trial. JACC Clin Electrophysiol. 2022 Nov;8(11):1431-1445. doi: 10.1016/j.jacep.2022.08.001. Epub 2022 Oct 26.

Study Officials

  • Jose M Tolosana, MD, PhD

    Hospital Clinic of Barcelona

    PRINCIPAL INVESTIGATOR
  • Margarida Pujol Lopez, MD

    Hospital Clinic of Barcelona

    PRINCIPAL INVESTIGATOR
  • Lluis Mont Girbau, MD, PhD

    Hospital Clinic of Barcelona

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
The patient will be explained to be randomized to either of the two branches. The type of therapy applied will not be communicated to the patient. The follow-up will be the same in the two branches. During the visits it will not be said which therapy has been applied.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized, unicentric, simple blind.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Head of Arrhythmia Section. Professor of Cardiology

Study Record Dates

First Submitted

August 7, 2019

First Posted

August 13, 2019

Study Start

September 1, 2019

Primary Completion

June 30, 2022

Study Completion

June 30, 2022

Last Updated

August 4, 2022

Record last verified: 2022-08

Data Sharing

IPD Sharing
Will not share

Locations