heepSync: synchronized electrical stimulation of breathing muscles for adults on mechanical ventilation
Official title: Clinical Safety and Feasibility Study for Non-CE Marked Medical Device: Evaluation of heepSync, a Novel Algorithm for Transcutaneous Electrical Stimulation of Respiratory Muscles in Mechanically Ventilated Patients.
Run by Tesai Care SL · NCT07363902 · Data updated 2026-11-12
This trial tests whether the heecap heepSync algorithm can safely sync electrical stimulation to breathing muscles in adults on mechanical ventilation.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 20 (estimated) |
| Sponsor | Tesai Care SL Industry-sponsored |
| Locations | 3 sites (Barcelona, Barcelona and 2 other locations) |
| Status | Recruiting |
| Started | December 1, 2024 |
| Main results expected | October 2026 |
| Study ends | November 2026 |
| Registry record updated | September 21, 2026 |
| Trial ID | NCT07363902 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults in the ICU with acute hypoxemic respiratory failure who have been on controlled or pressure-support mechanical ventilation for ≥24 hours, are clinically stable (SpO2 > 90% on FiO2 ≤ 0.50, PEEP ≤ 10 cm H2O, temperature 35.5–38.5°C), and are not receiving vasoactive drugs or neuromuscular blockers and have no exclusionary conditions such as pacemaker or neuromuscular disease.
✕Probably not a fit
Patients with pacemakers or a history of arrhythmia, neuromuscular disease, ongoing neuromuscular blockade, hemodynamic instability, high oxygen/PEEP requirements, or physical barriers to electrode placement are unlikely to be eligible or to benefit from this device.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Heecap's heepSync algorithm delivers transcutaneous electrical stimulation to inspiratory and expiratory respiratory muscles and attempts to synchronize that stimulation with the patient's own breathing while they remain on mechanical ventilation. The trial enrolls clinically stable adult ICU patients with acute hypoxemic respiratory failure who have been on controlled or pressure-support ventilation for at least 24 hours. Investigators will apply the device at the bedside and monitor synchronization performance, physiologic responses, and safety outcomes including arrhythmia, hemodynamic changes, and tolerance. The primary focus is on preliminary safety and the algorithm's ability to detect and time stimulation to patient breaths.
Why it matters
Potential benefit: If successful, this approach could help preserve respiratory muscle strength and shorten the time patients need mechanical ventilation.
How similar studies have gone: Transcutaneous synchronized stimulation of both inspiratory and expiratory muscles in ventilated patients is largely novel; while some invasive diaphragm or phrenic stimulation approaches have limited supporting data, evidence for this noninvasive algorithmic method is preliminary.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: Patient population 1 * Adult patients with acute hypoxemic respiratory failure who have been under controlled mechanical ventilation for at least 24 hours prior to enrollment. * Clinically stable: oxygen saturation \> 90% with a fractional inspired oxygen ≤ 0.50, eternal PEEP ≤ 10 cm H2O, temperature ranging from 35.5 to 38.5 ºC, no intravenous administration of vasoactive agents. Patient population 2 * Adult patients with acute hypoxemic respiratory failure who have been under pressure support mechanical ventilation for at least 24 hours prior to enrollment. * Clinically stable: oxygen saturation \> 90% with a fractional inspired oxygen ≤ 0.50, eternal PEEP ≤ 10 cm H2O, temperature ranging from 35.5 to 38.5 ºC, no intravenous administration of vasoactive agents. Exclusion Criteria: * Patients treated with neuromuscular blocking agents * Patients with neuromuscular disease * Patients with a pacemaker or past history of arrhythmia * Patients with physical obstacles that prevent thoracic or abdominal electrostimulation (e.g., abdominal trauma, recent abdominal surgery, polytrauma, broken or irritated skin) * BMI \> 40 kg/m2 * Hemodynamically unstable (noradrenaline \>0.1 microgram/kg/min) * Pregnancy * Patients under the age of 18 * The formalized ethical decision to withhold or withdraw life support * Patient under guardianship * Patients deprived of liberties * Patients already enrolled in the present study, in a previous episode of acute respiratory failure. * The patient who does not consent.
Where it's running
-
Hospital Universitari de Vall d'Hebrón
Barcelona, Barcelona, Spain Recruiting -
Hospital Universitari de Bellvitge
L'Hospitalet de Llobregat, Barcelona, Spain Recruiting -
Hospital Universitari Parc Tauli
Sabadell, Barcelona, Spain Recruiting
Study contacts
- Study coordinator: Barbara Flix, PhD
- Email: barbara@heecap.com
- Phone: +34933946511
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Shenfu Injection to help wean and reduce ventilator dependence in adults on mechanical ventilation
This trial tests whether Shenfu Injection, added to standard care, helps critically ill adults on invasive ventilation breathe without the machine sooner and reduces diaphragm dysfunction.
-
AeroPace Diaphragm Pacing Therapy for Ventilator-Dependent Patients
This post-approval study tests whether the AeroPace system can safely and effectively help patients on long-term mechanical ventilation who haven’t been able to wean after 96 hours.
-
Characterization of weaning practices in ICUs in Global South countries
This observational study tests how adult ICU patients on mechanical ventilation who are starting to wean are extubated, observing them for 7 days after extubation and until hospital discharge or death.
-
Monitoring diaphragm electrical activity and breathing effort during ventilator weaning
We will see if surface diaphragm EMG, esophageal pressure, and oxygen use measured during a spontaneous breathing trial can predict who will fail to wean from the ventilator in the ICU.
-
Using levosimendan to shorten time on a ventilator
This will test whether giving levosimendan to adults in the ICU who have failed a breathing trial helps them get off the ventilator sooner.
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How differences in lung stiffness and breathing pressures affect getting off the ventilator after a tracheostomy
This project will test whether measurements of regional lung compliance and transpulmonary driving pressure using electrical impedance tomography and esophageal pressure can explain why some tracheostomized patients on prolonged mechanical ventilation cannot be weaned.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.