NCT04755101 Efficacy of a Right-sided Ablation of the Anterior Ganglionated Plexus for Neurally Mediated Syncope
| NCT ID | NCT04755101 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Imelda Hospital, Bonheiden |
| Condition | Syncope, Neurogenic |
| Study Type | INTERVENTIONAL |
| Enrollment | 110 participants |
| Start Date | 2021-03-24 |
| Primary Completion | 2025-12-31 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 110 participants in total. It began in 2021-03-24 with a primary completion date of 2025-12-31.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
The third study on CardNM (CardNMH3 study) is a multicenter, double-blind, randomized trial with a sham control group investigating the efficacy and safety of a computed tomography (CT)-guided, right-sided ablation of the anterior ganglionated plexus to prevent recurrence of syncope in patients with neurally mediated syncope (NMS). The primary goal of the study is to determine whether a CT-guided, right-sided ablation of the anterior ganglionated plexus safely reduces the risk of recurrent episodes of syncope in patients with a history of recurrent NMS. Two-third of the patients will be randomized to the active arm and one-third to the control arm (sham). The study procedure is described in the 'detailed description' and 'intervention description'. Syncope burden, syncope occurrence and quality of life will be assessed by questionnaires at baseline and at 1, 3, 6 and 12 months. A 24-h rhythm registration will be performed at baseline and at 1-, 3- and 6-month follow-up to investigate the influence of the intervention on heart rate. The effect of CardNM on blood pressure and on chronotropic sinus node function will be evaluated in 2 additional substudies. Patients enrolled in the blood-pressure substudy will undergo a 24-h blood pressure monitoring at baseline and at 1, 3 and 6 months. Participants in the sinus node competence substudy will undergo a bicycle exercise test at baseline and at 1, 3 and 6 months. Investigators aim to achieve complete follow-up for 110 patients who meet the study enrollment criteria. If syncope-free survival (primary endpoint) is significantly different between the 2 arms after the enrollment of fewer than 110 patients (minimum 55 patients), enrollment into the trial will be prematurely stopped. The study may also be terminated prematurely if safety concerns occur.
Eligibility Criteria
Inclusion Criteria: * Patients must be in sinus rhythm and have ≥3 syncopes during the last 18 months\* and a previous positive tilt table test (TTT) with a cardioinhibitory or mixed response (VASIS I, IIA or IIB classification). \* syncopes occurring during TTT are not taken into account * Patients have a 'preserved cholinergic SN reserve', defined as ≥20% sinus heart rate increment during a pharmacological test with atropine. Exclusion Criteria: * \<14 years age * Any unstable medical condition, life expectancy \<12 months * Inability to provide consent or undergo follow-up * Syncope due to a non-cardiac disease or due to an advanced neuropathy * Moderate to severe valvular or subvalvular aortic stenosis or mitral stenosis * Overt heart failure or left ventricular ejection fraction \<45% * Current pregnancy * Chronotropic negative medications unless judged mandatory * 4 g amiodarone intake during the 2 months preceding enrollment * Alternating RBBB and LBBB, HV interval \>70 ms * LBBB, bifascicular block (RBBB + LAHB, RBBB + LPHB) * PR interval permanently \>240 ms * Pacemaker or automated implantable cardioverter defibrillator device * Permanent AF, PAF or electrical cardioversion during the last 6 months * Channelopathy * Tilt table test with VASIS III response or with VASIS II response and AV-Block
Contact & Investigator
Philippe Debruyne, MD
PRINCIPAL INVESTIGATOR
Imeldaziekenhuis
Frequently Asked Questions
Who can join the NCT04755101 clinical trial?
This trial is open to participants of all sexes, aged 14 Years or older, studying Syncope, Neurogenic. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT04755101 currently recruiting?
Yes, NCT04755101 is actively recruiting participants. Contact the research team at philippe.debruyne@skynet.be for enrollment information.
Where is the NCT04755101 trial being conducted?
This trial is being conducted at Bonheiden, Belgium, Bruges, Belgium, Leuven, Belgium.
Who is sponsoring the NCT04755101 clinical trial?
NCT04755101 is sponsored by Imelda Hospital, Bonheiden. The principal investigator is Philippe Debruyne, MD at Imeldaziekenhuis. The trial plans to enroll 110 participants.