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Tivic Health Reports Findings of Clinical Optimization Trial of Non-Invasive Cervical Vagus Nerve Stimulation (ncVNS)
The study demonstrated that personalizing the stimulation parameters to each user dramatically enhanced autonomic effects FREMONT, CA / ACCESS Newswire / November 13, 2025 / Tivic Health Systems, Inc. (Nasdaq:TIVC), a diversified immunotherapeutics company, announced today it has optimized key device and treatment parameters including frequency, amplitude, electrode positioning, and duration of stimulation as a result of its collaborative study with The Feinstein Institutes for Medical Research at Northwell Health. Physiological measurements taken before, during, and after ncVNS treatment found the following: Personalizing the frequency of ncVNS stimulation to each study subject resulted in a 46% increase in heart rate variability, which was 8.9x more effective than applying the same frequency to all subjects The optimal ncVNS frequency for each subject was found to be different between visits, indicating the importance of personalizing the stimulation parameters before each treatment Certain placement and configurations of electrodes were found to be more effective than others, with some placements increasing heart rate variability and others markedly reduce heart rate variability Four minutes of ncVNS stimulation was sufficient to drive a large increase in heart rate variability and was more effective than twenty minutes of stimulation.