Clinical trials
Syncope, Vasovagal clinical trials
Below are recruiting syncope, vasovagal clinical trials, each written for real people, not researchers. We’re tracking 16 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05159687RecruitingPhase 3
Atomoxetine to help prevent fainting from vasovagal episodes
This Phase 3 study tests whether atomoxetine can reduce how often vasovagal fainting happens. It may help people who have frequent fainting episodes with triggers like stress or standing for long periods.
Calgary, AlbertaAges 18 years+ - NCT05755737RecruitingPhase 2
Ondansetron to prevent fainting episodes from vasovagal syncope
This Phase 2 study tests whether ondansetron can help prevent future fainting (vasovagal syncope) in adults who have had recent episodes. If it works, it may reduce how often you faint and improve safety in everyday situations.
Calgary, AlbertaAges 18–100 - NCT06166277Recruiting
Ablation for fainting and slow heartbeat registry
This study tests a procedure called cardioneuroablation for people whose fainting or very slow heartbeat doesn't improve with other treatments. If you are under 60, have no other major heart conditions, and have not had ablation before, it might be an option to reduce or stop your fainting spells.
Chicago, IllinoisAges 18–60 - NCT05621460Recruiting
Water carbonation and how well you tolerate standing up
This study tests whether drinking carbonated (fizzy) water changes how well your body handles standing up without feeling faint. If you are healthy and don’t have certain heart or nerve problems, you may be able to take part.
Burnaby, British ColumbiaAges 19–50 - NCT05633693Recruiting
Exercises to help children with fainting and blood-pressure drops
This study tests whether teaching special standing/balance movements can reduce fainting episodes in children who have recurring vasovagal fainting or certain forms of POTS. It may help your child feel more stable when standing and improve symptoms, while researchers measure balance and “counterpressure” responses during the tests.
Burnaby, British ColumbiaAges 6–18 - NCT06159764Recruiting
Registry of nerve-targeting heart treatment for fainting
This registry tracks people who receive a heart procedure called cardioneuroablation to stop severe fainting spells. The procedure targets nerve signals that cause the heart to pause, and researchers want to learn how well it works in real-world patients.
BronAges 18–100 - NCT06513650Recruiting
Treating fainting caused by low blood pressure
This trial tests if adjusting blood pressure medicines or adding a new medicine (fludrocortisone) can reduce fainting episodes in people who have severe reflex syncope that hasn't improved with lifestyle changes.
MarseilleAges 18 years+ - NCT06440291Recruiting
Nerve treatment for fainting and exercise ability
This study tests if a procedure called cardioneuroablation can help people who faint or feel like they're about to faint due to a slow heart rate. The treatment targets the nerves around the heart to improve heart rate control and exercise capacity.
WarsawAges Any age - NCT07459478Recruiting
Tilt-table test for vasovagal fainting
This study looks at whether using a tilt-table (a special table that tilts you upright to trigger fainting) helps doctors better understand and treat fainting caused by vasovagal syncope. If you have this type of fainting, this study could help find better ways to manage it.
AmsterdamAges 18 years+ - NCT05555771Recruiting
Kids with fainting episodes after arriving at the emergency room
This study looks at children and teens (ages 6–18) who recently fainted but are now back to normal, using a survey. It aims to better understand fainting episodes that happen before the emergency visit and how to evaluate them safely.
Vancouver, British ColumbiaAges 6–18 - NCT06331819Recruiting
Sleep apnea, facial pigmentation, and fainting study
This study looks at whether sleep apnea, facial pigmentation, and fainting symptoms are connected. It aims to help understand these conditions better.
AmmanAges 18 years+ - NCT03446326Recruiting
Check how your pacemaker changes heart pumping
This study measures how well the heart pumps at different heart rates in people with pacemakers or defibrillators. It may help doctors understand how pacing settings affect heart function.
Calgary, AlbertaAges 18–70 - NCT06336031Recruiting
Blood fear and fainting study
This study looks at how a fear of blood or needles affects fainting. You will be asked to watch or experience something related to blood or needles while your body's responses are measured.
Burnaby, British ColumbiaAges 18–50 - NCT06458140Recruiting
Cardioneuroablation for severe fainting with heart pauses
This trial tests a procedure called cardioneuroablation to treat severe fainting (reflex syncope) that hasn't been helped by other treatments. The goal is to see if it reduces fainting without causing dangerous heart rhythm problems.
WarsawAges 14 years+ - NCT06472102Recruiting
Heart nerve ablation for severe fainting
This study tests a procedure called cardioneuroablation, which uses targeted heat (radiofrequency) to calm overactive nerves that cause your heart to beat too slowly and make you faint. The goal is to stop severe fainting spells in people with reflex syncope who haven't gotten better with other treatments.
Warsaw, Masovian VoivodeshipAges 14 years+ - NCT07671898Recruiting
Freezing vs. Radiofrequency for Slow Heart Rate
This trial compares two procedures to treat very slow heart rates without needing a pacemaker. One uses freezing (cryoablation) and the other uses radiofrequency energy to target nerves that control heart rate.
Tomsk, Tomsk OblastAges 18–60
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Common questions
- Are there clinical trials for syncope, vasovagal?
- Yes. Clin2 currently lists 16 recruiting syncope, vasovagal studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a syncope, vasovagal trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a syncope, vasovagal trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.