[Heart rate variability: a cardiometabolic risk marker with public health implications].
Jean Marsac
https://pubmed.ncbi.nlm.nih.gov/24672989/Actively Recruiting
Led by Wake Forest University Health Sciences · Updated on 2026-06-01
20
Participants Needed
1
Research Sites
21 weeks
Total Duration
Caregivers often face prolonged stress that can lead to health problems, including a higher risk of cardiovascular disease linked to problems with autonomic nervous system regulation. This study evaluates whether a neuromodulation device called Cereset Research CR can improve heart rate variability HRV, a measure of autonomic cardiovascular function, in caregivers of people living with dementia who experience stress, anxiety, or insomnia. The study also looks at how CR affects self-reported stress, sleep quality, caregiver burden, and related emotional symptoms. Participants will be randomly assigned to receive either four sessions of the CR active intervention or four sessions of sham control tones, while continuing their usual care. The CR system uses sensors placed on the scalp to provide real-time audible feedback of brainwaves, aiming to improve autonomic regulation. The intervention period lasts four weeks, with sessions up to three times per week, each lasting up to 60 minutes. During the study, participants heart rate, blood pressure, heart rate variability, and baroreflex sensitivity will be measured before and after the intervention period. They will also complete questionnaires assessing insomnia severity, depression, anxiety, traumatic stress, perceived stress, quality of life, caregiver burden, distress, and caregiver self-efficacy. Follow-up assessments occur shortly after intervention completion and several weeks later to monitor changes. The entire study participation spans from baseline through follow-up visits four to seven weeks after the intervention ends.
CONDITIONS
Cereset Research for Caregivers
K
Kenzie Brown
C
Charles Tegeler, MD
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Wake Forest University Health Sciences
Lead Sponsor
Memory Counseling Program general fund
Collaborating Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Cereset Research Device (Active Arm) | Sham Control (Inactive Device Protocol) |
|---|---|---|
| What it is | Active closed-loop neurotechnology session using the Cereset Research device, which echoes brainwave activity through auditory tones to promote relaxation and possible recalibration of neural oscillations. Uses HIRREM-based technology. | Sham device session that replicates the procedures of the Cereset Research intervention but does not provide real-time brainwave feedback. |
| Role in the trial | Experimental intervention arm testing the effects of closed-loop, noninvasive neurotechnology on stress, sleep, and heart rate variability measures in caregivers. | Comparator arm used to control for expectancy or procedural effects and distinguish device-specific effects from placebo response. |
| Primary intended use | To test whether Cereset Research can reduce stress, anxiety, insomnia, and affect cardiovascular measures such as heart rate variability in informal caregivers. | Serves as a matched procedural control to assess device-specific effects on stress, anxiety, insomnia, and physiological outcomes. |
| How it is given or performed | Participants undergo up to three 60-minute sessions per week (for four weeks), with four scalp sensors applied for EEG recording and auditory feedback delivered through earbuds. Only two of the four sensors are active for feedback at any time. | Participants attend the same sequence of sessions with sensor placement and procedures matching the active group, but the device does not provide real-time neurofeedback. |
| Evidence status in caregivers | No published randomized trials in caregiver populations with this technology; related studies have evaluated HIRREM and neurofeedback approaches for relaxation and insomnia, with some evidence of stress response benefits in other groups. | Sham interventions provide essential control but have not themselves demonstrated effects on outcomes beyond controlling for nonspecific study effects. |
| Important limitations | Results for effectiveness or sustained symptom changes in caregivers have not yet been published. Effects may differ from studies in insomnia or post-traumatic stress populations. The device is investigational for this indication. | Sham comparators in device trials can control for expectancy but may not perfectly blind participants or match subjective experience. Sham sessions do not provide active brainwave feedback. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
You may qualify if you...
You will not qualify if you...
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 4 weeks
Participants receive up to 4 Cereset Research (CR) sessions over 4 weeks while continuing their current care. Each session uses sensors on the scalp with audible tones to improve autonomic cardiovascular regulation and reduce symptoms of stress, anxiety, or insomnia.
Up to 3 sessions per week, each lasting up to 60 minutes
Duration - Up to 7 weeks following treatment
Participants complete follow-up assessments to evaluate changes in cardiovascular measures and symptom inventories up to 7 weeks after intervention completion.
2 visits (0-14 days and 4-7 weeks after treatment completion)
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
SINGLE_GROUP
Primary Purpose
SUPPORTIVE_CARE
Number of Arms
2
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https://pubmed.ncbi.nlm.nih.gov/22018588/Wake Forest University Health Sciences
Lead Sponsor
Memory Counseling Program general fund
Collaborating Sponsor