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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Completed No phase listed Observational

Study to Develop a Tool to Estimate the Kidney Function in Databases Without Laboratory Data

NCT03605810
View directory record Official record
Conditions
Renal Function
Interventions
No Intervention
Other
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
5,132,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Whippany, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 9, 2019 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Not applicable Interventional Results available

RCT of Effects of Device-guided Breathing on Ambulatory BP

NCT01184755
View directory record Official record
Conditions
Hypertension
Interventions
Relaxation, RESPeRate
Behavioral · Device
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 80 Years
Enrollment
253 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
2
States / cities
New Brunswick, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated May 15, 2017 · Synced Jul 21, 2026, 7:28 PM EDT
Terminated Phase 2 Interventional Results available

Ivabradine in the Management of Cardiac Autonomic Dysfunction Associated With Thoracic Radiation Therapy.

NCT03137537
View directory record Official record
Conditions
Lymphoma, Autonomic Imbalance, Cancer Survivorship
Interventions
Ivabradine, Placebo Oral Tablet
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years to 80 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 9, 2022 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Not applicable Interventional

The Effect of Maternal Scent on Sleep Wake States

NCT04301453
View directory record Official record
Conditions
Development, Infant
Interventions
Maternal Scent
Other
Lead sponsor
Columbia University
Other
Eligibility
30 Weeks to 36 Weeks
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 25, 2022 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Phase 3 Interventional Results available

A Multicenter Clinical Trial of Allopurinol to Prevent Kidney Function Loss in Type 1 Diabetes

NCT02017171
View directory record Official record
Conditions
Diabetic Nephropathies, Coronary Artery Disease
Interventions
Allopurinol, Placebo
Drug
Lead sponsor
Alessandro Doria
Other
Eligibility
18 Years to 70 Years
Enrollment
530 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
23
States / cities
Aurora, Colorado • Denver, Colorado • Atlanta, Georgia + 15 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2020 · Synced Jul 21, 2026, 7:28 PM EDT
Recruiting No phase listed Observational

Evaluating an AI Tool for Detecting Thyrotoxic States

NCT07017907
View directory record Official record
Conditions
Graves Disease, Hyperthyroidism/Thyrotoxicosis
Interventions
Heart rate-based AI software for detecting thyrotoxicosis
Device
Lead sponsor
THYROSCOPE INC.
Industry
Eligibility
22 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Not applicable Interventional

Evaluating the Feasibility, Acceptability, and Preliminary Outcomes of Heart Rate Variability Biofeedback for Individuals With Opioid Use Disorder.

NCT07361731
View directory record Official record
Conditions
Autonomic Nervous System Imbalance, Heart Rate Variability (HRV), Opioid Use Disorder, Breathing Techniques, Opioid Craving, Recovery, Emotional Regulation, Positive and Negative Affect, Stress, Biofeedback
Interventions
Heart rate variability biofeedback
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Acute Grape Seed Extract Supplementation on the Heart Rate Recovery in Young Individuals

NCT07137988
View directory record Official record
Conditions
Healthy Young Men
Interventions
600 mg grape seed extract, 600 mg Starch
Dietary Supplement
Lead sponsor
California Baptist University
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Riverside, California
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Jul 21, 2026, 7:28 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Pediatric Hypertension and the Renin-Angiotensin SystEm (PHRASE)

NCT04752293
View directory record Official record
Conditions
Hypertension, Left Ventricular Hypertrophy, Left Ventricular Dysfunction, Left Atrial Dilatation, Left Ventricular Diastolic Dysfunction, Kidney Diseases, Kidney Injury, Kidney Dysfunction, Sodium Urine High, Blood Pressure Disorders, Uric Acid Retention, Angiotensin Hypertension, Autonomic Dysfunction, Autonomic Imbalance, Pediatric Kidney Disease, Pediatric Obesity, Proteinuria, Albuminuria
Interventions
Not listed
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
7 Years to 18 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Jul 21, 2026, 7:28 PM EDT
Recruiting Not applicable Interventional

Metabolic Cost of Walking With Passive vs. Powered Prosthetic Knees Among Persons With Limb Loss

NCT05831696
View directory record Official record
Conditions
Transfemoral Amputation
Interventions
Powered Microprocessor-controlled Knee (PMPK)
Other
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Feb 3, 2026 · Synced Jul 21, 2026, 7:28 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Fetal Heart Rate Changes and Labor Neuraxial Analgesia: a Machine Learning Approach

NCT05399979
View directory record Official record
Conditions
Fetal Bradycardia
Interventions
Labor Neuraxial Analgesia
Procedure
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older · Female only
Enrollment
1,077 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 2, 2022 · Synced Jul 21, 2026, 7:28 PM EDT
Not listed Phase 4 Interventional

Effect of Ivabradine in Stage D HF/Cardiogenic Shock Patients on Dobutamine

NCT03387605
View directory record Official record
Conditions
Heart Failure, Cardiogenic Shock, Tachycardia
Interventions
Ivabradine, Placebo
Drug
Lead sponsor
Loyola University
Other
Eligibility
18 Years to 99 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated May 22, 2019 · Synced Jul 21, 2026, 7:28 PM EDT
Completed No phase listed Observational

Baseline Cardiovascular Measurements in Pediatric Spinal Cord Injury

NCT01599455
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Not listed
Lead sponsor
Shriners Hospitals for Children
Other
Eligibility
Up to 18 Years
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 26, 2020 · Synced Jul 21, 2026, 7:28 PM EDT
Recruiting Not applicable Interventional

Benefits of Choir for Older Adults With Unaddressed Hearing Loss (WP2)

NCT06580847
View directory record Official record
Conditions
Hearing Loss, Age-Related, Speech Intelligibility, Psychosocial Functioning
Interventions
Group Singing, Audiobook Club
Behavioral
Lead sponsor
Toronto Metropolitan University
Other
Eligibility
60 Years and older
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 17, 2025 · Synced Jul 21, 2026, 7:28 PM EDT
Withdrawn No phase listed Observational

Electrocardiographic Autonomic Function Measures in Mechanically Ventilated Patients

NCT00844935
View directory record Official record
Conditions
Disorders of the Autonomic Nervous System, Cardiovascular Abnormalities, Respiratory Disorders
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 27, 2012 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Diltiazem on Pharmacokinetics of BMS-914392

NCT01211808
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
BMS-914832, Diltiazem
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 1, 2011 · Synced Jul 21, 2026, 7:28 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Operator Radiation Dose Using Ultra-Low Fluoroscopic Pulse Rate Versus Standard In Performing Coronary Angiography Via Right Radial Artery

NCT07221175
View directory record Official record
Conditions
Radiation Exposure, Radiation Exposure to Operator
Interventions
Ultra low dose fluoroscopic pulse rate, Standard low dose fluoroscopic pulse rate
Radiation
Lead sponsor
Maimonides Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Mar 19, 2026 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study With an Open-Label Active Control to Evaluate the Potential of Nestorone® to Delay Cardiac Repolarization in Healthy Female Volunteers

NCT02236026
View directory record Official record
Conditions
Healthy
Interventions
Supratherapuetic dose of Nestorone, Placebo, Moxifloxacin
Drug
Lead sponsor
Population Council
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Not applicable Interventional

Interval Training and Parkinson's Disease

NCT06606743
View directory record Official record
Conditions
Other Disorders of Autonomic Nervous System
Interventions
High-Intensity Interval Training, High-Velocity Circuit Resistance Training
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
30 Years to 90 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
2
States / cities
Coral Gables, Florida
Source: ClinicalTrials.gov public record
Updated Aug 14, 2025 · Synced Jul 21, 2026, 7:28 PM EDT
Recruiting Phase 2Phase 3 Interventional

Randomized Controlled Trial of Treatment to Optimize Heart Rate Variability for Persistent Post-Concussion Symptoms

NCT07071350
View directory record Official record
Conditions
Autonomic Nervous System Disease, Concussive Injury, Mild Traumatic Brain Injury, Post Traumatic Stress Disorder, Persistent Post Concussion Syndrome
Interventions
HRV Coherence Ratio, NSI, Pittsburgh Sleep Quality Index (PSQI), Quantitative Sleep Measures, Patient Global Impression of Change (PGIC), Cognitive Performance/NIH Toolbox Cognitive Battery, Pain Interference/TBI-QoL Pain Interference Short-Form, Patient Health Questionnaire-9 (PHQ-9), PTSD Checklist for DSM-5 (PCL-5), HRV Biofeedback (HRV-B), Psychoeducational (Edu) Comparator Intervention
Other · Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Jul 21, 2026, 7:28 PM EDT
Terminated Not applicable Interventional Results available

Feasibility Study of Omega-3 Fatty Acids in Dialysis Patients

NCT01002118
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Omega-3 Acid Ethyl Esters, Placebo
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Aug 8, 2017 · Synced Jul 21, 2026, 7:28 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Comparison of Resting Heart and Respiratory Rate Measurements Acquired by Contactless Radar Sensors, Electrocardiography, and Capnography

NCT04935190
View directory record Official record
Conditions
Vital Signs
Interventions
Vitalpercept
Diagnostic Test
Lead sponsor
DawnLight
Industry
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 30, 2021 · Synced Jul 21, 2026, 7:28 PM 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 21, 2019 · Synced Jul 21, 2026, 7:28 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of LY2216684 in Healthy Participants Receiving Albuterol or Propanolol

NCT01263197
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
LY2216684, albuterol, propranolol, placebo for LY2216684, placebo for albuterol, placebo for propranolol
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 65 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Evansville, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 28, 2019 · Synced Jul 21, 2026, 7:28 PM EDT