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ClinicalTrials.gov public records Last synced Oct 22, 2026, 4:51 AM EDT

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Showing 217–240 of 295 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Heart Rate Variability Clear all
Completed No phase listed Observational

Gestational Diabetes and Sleep-Disordered Breathing

NCT00933881
View directory record Official record
Conditions
Gestational Diabetes Mellitus
Interventions
Determining a change in heart rate variability post delivery of the baby
Other
Lead sponsor
Christiana Care Health Services
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Jul 14, 2016 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 2 Interventional Results available

Heart Rate Variability in Response to Metformin Challenge

NCT02500628
View directory record Official record
Conditions
Fibromyalgia, Mitochondrial Diseases, Movement Disorders, Diabetes Mellitus, Type 2
Interventions
Metformin
Drug
Lead sponsor
Woodinville Psychiatric Associates
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Woodinville, Washington
Source: ClinicalTrials.gov public record
Updated Jan 3, 2018 · Synced Oct 22, 2026, 4:51 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Coherence Breathing Before Cardiopulmonary Exercise Testing

NCT07650279
View directory record Official record
Conditions
Breathing Rate
Interventions
Coherence Breathing, Spontaneous Breathing
Behavioral
Lead sponsor
Human Performance Lab of Monmouth University
Other
Eligibility
19 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
West Long Branch, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 18, 2026 · Synced Oct 22, 2026, 4:51 AM EDT
Terminated Phase 3 Interventional Results available

Clinical Importance of Treating Iron Overload in Sickle Cell Disease

NCT00981370
View directory record Official record
Conditions
Anemia, Sickle Cell, Transfusion Hemosiderosis
Interventions
deferasirox
Drug
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
14 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 8, 2017 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational

Treatment of Reduced Heart Rate Variability Associated With Major Depression With Electroconvulsive Therapy

NCT00209066
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
18 Years to 90 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2005
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 19, 2013 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Brain Health With Inner Engineering Meditation

NCT05455814
View directory record Official record
Conditions
Meditation, Brain; Agenesis
Interventions
Shambhavi Madamudra Kriya
Behavioral
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
20 Years to 65 Years
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational

Heart Rate Variability and Sudden Cardiac Death

NCT00005235
View directory record Official record
Conditions
Cardiovascular Diseases, Coronary Disease, Heart Diseases, Myocardial Infarction, Death, Sudden, Cardiac, Ventricular Arrhythmia
Interventions
Not listed
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
715 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1988 – 1993
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 24, 2015 · Synced Oct 22, 2026, 4:51 AM EDT
Recruiting No phase listed Observational

Wearable Technology to Evaluate Hyperglycemia and HRV in DMD - Longitudinal Aim

NCT06093100
View directory record Official record
Conditions
Duchenne Muscular Dystrophy
Interventions
wearable technology
Device
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
10 Years and older · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 6, 2025 · Synced Oct 22, 2026, 4:51 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Restorative Neurophysiology: Backing up and Restoring the Brain (BandR)

NCT07252011
View directory record Official record
Conditions
Adults With Variability in Their Mood
Interventions
Transcranial alternating current stimulation (tACS), Neuro/biofeedback, Recall, Physiological stimulation
Device · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Tailored Health Self-Management Interventions for Highly Distressed Family Caregivers

NCT03023332
View directory record Official record
Conditions
Distress, Caregiver
Interventions
Resourcefulness Training, Biofeedback training, Bipolar Education
Behavioral
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years to 120 Years
Enrollment
310 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 15, 2023 · Synced Oct 22, 2026, 4:51 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

UCLA Magnesium Formulation Athlete Study

NCT07640685
View directory record Official record
Conditions
Athletic Performance, Recovery, Sleep
Interventions
Magnesium glycinate, Magnesium L-threonate, Placebo
Dietary Supplement · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 35 Years
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational Results available

Heart Rate Variability in Trauma Patients

NCT00795535
View directory record Official record
Conditions
Trauma
Interventions
Not listed
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 9, 2015 · Synced Oct 22, 2026, 4:51 AM EDT
Completed No phase listed Observational

Neurophysiologic Maturation Index for Late Preterm Infants

NCT02156817
View directory record Official record
Conditions
Neurophysiologic Maturation
Interventions
Amplitude integrated electroencephalogram, Cardiorespiratory signal acquisition
Other
Lead sponsor
Brown University
Other
Eligibility
1 Day to 4 Days
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
2
States / cities
Detroit, Michigan • Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 3, 2025 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Heart Rate Variability Biofeedback: It's Role in Asthma Therapeutics

NCT02766374
View directory record Official record
Conditions
Asthma
Interventions
Heart rate variability biofeedback, Placebo
Behavioral
Lead sponsor
Fred Wamboldt, MD
Other
Eligibility
18 Years to 75 Years
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2018
U.S. locations
2
States / cities
Denver, Colorado • Piscataway, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 15, 2019 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of Performance, Usability, and Reliability of a Novel Device for Continuous Collection of Physiological Data

NCT03257189
View directory record Official record
Conditions
Healthy Normals
Interventions
Physiological signal monitor, Heart rate and heart rate variability comparison device, Respiration rate comparison device, Activity classification
Device · Other
Lead sponsor
MC10 Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 25, 2019 · Synced Oct 22, 2026, 4:51 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

BPIT 5-Week Multi-Site Study: Movement Efficiency, Mobility & Neuromuscular Adaptation

NCT07256717
View directory record Official record
Conditions
Physical Fitness
Interventions
Balanced Progressive Intensity Training (BPIT) 5-Line Method
Behavioral
Lead sponsor
MMSx Authority Institute for Movement Mechanics & Biomechanics Research Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
369 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
3
States / cities
Columbus, Ohio • Powell, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Diaphragmatic Breathing and Heart Rate Variability Training for Improving Hypertension in Fragile X Associated Tremor/Ataxia

NCT03816540
View directory record Official record
Conditions
Hypertension, FXTAS
Interventions
HRV and respiratory coherence biofeedback
Device
Lead sponsor
University of California, Davis
Other
Eligibility
50 Years to 90 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Oct 22, 2019 · Synced Oct 22, 2026, 4:51 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Cereset Research for Caregivers

NCT05209438
View directory record Official record
Conditions
Caregivers
Interventions
Cereset Research
Device
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Oct 22, 2026, 4:51 AM EDT
Terminated Not applicable Interventional

Blood Pressure, Heart Rate Variability & Sleep in Veterans With PTSD

NCT01920451
View directory record Official record
Conditions
Insomnia, Posttraumatic Stress Disorder, Hypertension, Cardiovascular Disease
Interventions
Cognitive-Behavioral Therapy for Insomnia (CBTI)
Behavioral
Lead sponsor
Durham VA Medical Center
Federal
Eligibility
21 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 6, 2014 · Synced Oct 22, 2026, 4:51 AM EDT
Recruiting Not applicable Interventional

Assessment of Remote Approaches for Identification of Autonomic Dysfunction Among Survivors of Leukemia and Lymphoma

NCT06747910
View directory record Official record
Conditions
Childhood Cancer
Interventions
Exercise Intervention - Ewing Battery Assessment, Questionnaire Administration, Medical Device Usage and Evaluation
Other · Device
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
18 Years and older
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Heart Rate Variability Biofeedback for Smoking Cessation Treatment

NCT05224050
View directory record Official record
Conditions
Tobacco Smoking
Interventions
Cognitive-Behavioral Smoking Cessation, Heart Rate Variability Biofeedback, Nicotine patch
Behavioral · Biological · Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
21 Years to 50 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Comparative Effectiveness of Liberal Versus Restricted Maternal Administration of Oxygen During Labor

NCT02752490
View directory record Official record
Conditions
Maternal Oxygen Use in Labor
Interventions
Liberal use of maternal oxygen, Indicated use of maternal oxygen
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
844 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 12, 2020 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 4 Interventional Results available

To Evaluate the Effect of Liraglutide on Ambulatory Blood Pressure-A Pilot Study

NCT02299388
View directory record Official record
Conditions
Diabetes Mellitus, Non-Insulin-Dependent, Hypertensive Disease
Interventions
Liraglutide or Placebo
Drug
Lead sponsor
Tulane University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jan 27, 2021 · Synced Oct 22, 2026, 4:51 AM EDT
Completed Phase 2 Interventional Results available

Substance P Antagonist in the Treatment of Posttraumatic Stress Disorder

NCT00383786
View directory record Official record
Conditions
PTSD
Interventions
NK1 Antagoist (GR205171), Psychophysiology (Trauma Script), Psychophysiology (Verbal Threat), Psychophysiology (Fear Conditioning), Psychophysiology (Affective Modulation), Psychophysiology (Heart rate variability), Lumbar Puncture, 24-hour plasma sampling, MRI
Drug · Procedure
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Bethesda, Maryland • New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 31, 2019 · Synced Oct 22, 2026, 4:51 AM EDT