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ClinicalTrials.gov public records Last synced Sep 7, 2026, 10:26 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Lying Clear all
Completed No phase listed Observational Accepts healthy volunteers

The Accuracy of Manual Muscle Testing

NCT01066312
View directory record Official record
Conditions
Lying
Interventions
Not listed
Lead sponsor
Parker Research Institute
Other
Eligibility
18 Years to 65 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 18, 2017 · Synced Sep 7, 2026, 10:26 AM EDT
Completed Not applicable Interventional Results available

The Prone to Supine Breast MRI Trial

NCT03573804
View directory record Official record
Conditions
Breast Cancer
Interventions
Prone to Supine MRI
Other
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Aug 29, 2021 · Synced Sep 7, 2026, 10:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving the Self-Efficacy of African American Parents in Infant Supine Sleep

NCT01707173
View directory record Official record
Conditions
African American Infant Sleep Beliefs and Practices
Interventions
Tailored education, Standard Education
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
735 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 2, 2016 · Synced Sep 7, 2026, 10:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of a Surgical Microscope Mounted Autorefractor When Used on Patients Lying in a Supine Position

NCT01827748
View directory record Official record
Conditions
Refractive Error
Interventions
Intraoperative Autorefractor IAR-1, Hartmann-Shack Auto Refractor
Device
Lead sponsor
Adventus Technology
Industry
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 11, 2013 · Synced Sep 7, 2026, 10:26 AM EDT
Completed Not applicable Interventional Results available

A Study to Evaluate the Use of Supine MRI Images in Breast Conserving Surgery

NCT01929395
View directory record Official record
Conditions
Breast Cancer
Interventions
Supine MRI
Device
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2018
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Apr 29, 2019 · Synced Sep 7, 2026, 10:26 AM EDT
Recruiting Not applicable Interventional

Treatment of Supine Hypertension in Autonomic Failure (CPAP)

NCT03312556
View directory record Official record
Conditions
Supine Hypertension, Autonomic Failure
Interventions
continuous positive airway pressure (CPAP), Placebo
Device · Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 7, 2026, 10:26 AM EDT
Withdrawn Not applicable Interventional

Positioning of Surgical Patients With Sleep Apnea

NCT02123238
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
bed positioning
Other
Lead sponsor
Englewood Hospital and Medical Center
Other
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Englewood, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 14, 2015 · Synced Sep 7, 2026, 10:26 AM EDT
Withdrawn Not applicable Interventional

Fetoscopic Laser Photocoagulation in Management of Vasa Previa

NCT06290232
View directory record Official record
Conditions
Vasa Previa, Pregnancy Complications, Maternal; Procedure, In Utero Procedure Affecting Fetus or Newborn
Interventions
Fetoscopic Laser Photocoagulation
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 55 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 7, 2026, 10:26 AM EDT
Recruiting Not applicable Interventional

Effect of Raised Head of the Bed on Lying Blood Pressure in Autonomic Failure

NCT04502225
View directory record Official record
Conditions
Supine Hypertension, Autonomic Failure
Interventions
Tilt, Elevated trunk, Tilt - In home, Elevated Trunk - In home
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 7, 2026, 10:26 AM EDT
Completed No phase listed Observational

Assessing Cerebral Blood Flow Autoregulation During Surgery in the Head-up Position

NCT01225185
View directory record Official record
Conditions
Shouldersurgery
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 21, 2017 · Synced Sep 7, 2026, 10:26 AM EDT
Recruiting Not applicable Interventional

Impact of Body Positioning on EndoFLIP Measurements: A Comparative Study of Supine and Left Lateral Decubitus Positions

NCT07780981
View directory record Official record
Conditions
Dysphagia, Esophageal Stricture, Epidermolysis Bullosa (EB), Achalasia, Esophageal Motility Disorders, Eosinophilic Esophagitis (EoE)
Interventions
EndoFlip
Diagnostic Test
Lead sponsor
Johns Hopkins University
Other
Eligibility
5 Years to 21 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 7, 2026, 10:26 AM EDT
Recruiting Not applicable Interventional

MedCline Investigational Study for the Treatment of Mild OSA With Positional Therapy

NCT07492420
View directory record Official record
Conditions
Mild Obstructive Sleep Apnea
Interventions
MedCline Sleep System
Device
Lead sponsor
Amenity Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 7, 2026, 10:26 AM EDT
Withdrawn No phase listed Observational

Pulmonary Function During Prone and Supine Positioning in NICU Infants Requiring Assisted Ventilation

NCT00749762
View directory record Official record
Conditions
Pulmonary Function
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
24 Hours to 6 Months
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2010
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 4, 2015 · Synced Sep 7, 2026, 10:26 AM EDT
Completed Phase 1 Interventional

Treatment of Supine Hypertension in Autonomic Failure

NCT00223717
View directory record Official record
Conditions
Hypertension
Interventions
Clonidine, Nitroglycerin transdermal, Dipyridamole/ Aspirin (Aggrenox), Desmopressin (DDAVP), Sildenafil, Nifedipine, Hydralazine, Hydrochlorothiazide, Placebo, Bosentan, Diltiazem, Eplerenone, guanfacine, L-arginine, captopril, carbidopa, losartan, metoprolol tartrate, nebivolol hydrochloride, prazosin hydrochloride, tamsulosin hydrochloride, Head-up tilt., aliskiren, Local heat stress
Drug · Dietary Supplement · Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Sep 7, 2026, 10:26 AM EDT
Recruiting Not applicable Interventional

HoYAG vs TFL in miniPCNL With ClearPetra

NCT07087977
View directory record Official record
Conditions
Nephrolithiasis, Kidney Stone
Interventions
HoYAG laser, TFL laser platform
Device
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 7, 2026, 10:26 AM EDT
Completed Not applicable Interventional Results available

Local Heat Stress in Autonomic Failure Patients With Supine Hypertension

NCT02417415
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure, Multiple System Atrophy, Autonomic Failure
Interventions
Passive heat stress, Control (non-heating)
Other
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 80 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 9, 2022 · Synced Sep 7, 2026, 10:26 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Neonatal Acid-Base Status After C Section With Maternal Tilt vs. Supine

NCT02243423
View directory record Official record
Conditions
Aortocaval Compression, Fetal Acidosis
Interventions
SUPINE, TILT
Procedure
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 25, 2016 · Synced Sep 7, 2026, 10:26 AM EDT
Not listed Not applicable Interventional

Supine vs. Upright Weight Bearing MRI in the Evaluation of Patients With Lumbar Spondylolisthesis

NCT02958241
View directory record Official record
Conditions
Spondylolisthesis
Interventions
MRI
Other
Lead sponsor
Texas Back Institute
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Plano, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2016 · Synced Sep 7, 2026, 10:26 AM EDT
Enrolling by invitation Phase 2 Interventional

Droxidopa / Pyridostigmine in Orthostatic Hypotension

NCT01370512
View directory record Official record
Conditions
Orthostatic Hypotension
Interventions
Droxidopa, Pyridostigmine, Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Sep 7, 2026, 10:26 AM EDT
Not listed No phase listed Observational

Evaluating and Establishing the Relationship in the Five Critical X-ray Time Points in Spinal Deformity Realignment

NCT05154825
View directory record Official record
Conditions
Spine, Spine Deformity
Interventions
Imaging-Observational
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Sep 7, 2026, 10:26 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Validation of Ultrasound in Predicting a Low Lying Placenta Throughout Pregnancy

NCT02689739
View directory record Official record
Conditions
Pregnancy, Obese
Interventions
venous duplex ultrasound
Procedure
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 50 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2020 · Synced Sep 7, 2026, 10:26 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Straight Leg Raise Continuation

NCT05568784
View directory record Official record
Conditions
Quadriceps Muscle Atrophy, Leg Injury
Interventions
Straight Leg Raise exercise
Other
Lead sponsor
Andrews Research & Education Foundation
Other
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Gulf Breeze, Florida
Source: ClinicalTrials.gov public record
Updated Feb 20, 2024 · Synced Sep 7, 2026, 10:26 AM EDT
Terminated Phase 1 Interventional

Contribution of Angiotensin II to Supine Hypertension in Autonomic Failure

NCT01292694
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure, Multiple System Atrophy
Interventions
Losartan, Captopril, Placebo
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 23, 2018 · Synced Sep 7, 2026, 10:26 AM EDT
Recruiting Not applicable Interventional

Overnight Trials With Heat Stress in Autonomic Failure Patients With Supine Hypertension

NCT03042988
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure, Multiple System Atrophy, Autonomic Failure
Interventions
Heating pad, Sham control
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 15, 2026 · Synced Sep 7, 2026, 10:26 AM EDT