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Showing 1–24 of 49 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Supine Position Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Robotic Surgery in the Seated Position for Benign and Malignant Lesions of the Head and Neck

NCT02792322
View directory record Official record
Conditions
Oropharyngeal Neoplasms, Head and Neck Cancer
Interventions
Transoral Robotic Surgery (TORS) with the daVinci Robotic Surgical System device
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 3, 2025 · Synced Sep 10, 2026, 2:30 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 10, 2026, 2:30 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 10, 2026, 2:30 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 10, 2026, 2:30 AM EDT
Completed Not applicable Interventional Results available

Supine MRI in Breast Cancer Patients Undergoing Upfront Surgery or Receiving Neoadjuvant Therapy

NCT02956473
View directory record Official record
Conditions
Breast Cancer
Interventions
Supine MRI, Neoadjuvant Therapy (NAT), Ultrasound, Mammography, Standard of Care, Standard MRI
Device · Other · Procedure
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 11, 2024 · Synced Sep 10, 2026, 2:30 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 10, 2026, 2:30 AM EDT
Completed No phase listed Observational

Arm and Ankle Blood Pressure Cuffs During C-Section

NCT04934995
View directory record Official record
Conditions
Supine Hypotensive Syndrome, Cesarean Section Complications, Anesthesia Complication
Interventions
Blood Pressure Cuff
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 20, 2024 · Synced Sep 10, 2026, 2:30 AM EDT
Terminated No phase listed Observational

ARDS Esophageal Balloon Pressure Changes With Positioning Study

NCT03120793
View directory record Official record
Conditions
ARDS, Respiratory Failure
Interventions
Esophageal balloon catheter
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 10, 2026, 2:30 AM EDT
Completed Not applicable Interventional

Biobehavioral Efficacy of the Semi-Elevated Side-Lying Position

NCT04942106
View directory record Official record
Conditions
Feeding, Bottle, Infant, Premature, Diseases, Behavior, Infant
Interventions
Arm 1 - Side-lying position followed by Supine position, Arm 2 - Supine position followed by Side-lying position
Other
Lead sponsor
Boston College
Other
Eligibility
Up to 2 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2024 · Synced Sep 10, 2026, 2:30 AM EDT
Enrolling by invitation Not applicable Interventional

Prospective Evaluation of Upright Versus Supine CT Myelography of the Lumbar Spine

NCT07456137
View directory record Official record
Conditions
Lumbar Central Canal Stenoses, Neural Foraminal Stenoses
Interventions
Upright CT
Radiation
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 10, 2026, 2:30 AM EDT
Enrolling by invitation No phase listed Observational

PPV vs PVI in the Supine and Prone Position

NCT07415603
View directory record Official record
Conditions
Surgeries Undergoing General Anesthesia
Interventions
Observation
Other
Lead sponsor
Joseph D. Tobias
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 10, 2026, 2:30 AM EDT
Withdrawn Phase 1 Interventional

The Role of Endothelin in the Supine Hypertension of Autonomic Failure

NCT01119417
View directory record Official record
Conditions
Hypertension, Pure Autonomic Failure, Multiple System Atrophy
Interventions
BQ123, Saline
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 4, 2021 · Synced Sep 10, 2026, 2:30 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 10, 2026, 2:30 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 10, 2026, 2:30 AM EDT
Completed Phase 4 Interventional Results available

Effect of Myocilin Genetic Variants on Intraocular Pressure and Pressure Variation in Sitting and Supine Positions

NCT00906087
View directory record Official record
Conditions
Glaucoma
Interventions
Cosopt (combination eyedrop of dorzolamide and timolol)
Drug
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 99 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 1, 2017 · Synced Sep 10, 2026, 2:30 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 10, 2026, 2:30 AM EDT
Completed Not applicable Interventional

Prone or Supine Effect After Caesarean Delivery on Respiratory Outcomes in Full Term Infants

NCT02692573
View directory record Official record
Conditions
Prone vs Supine Effects on Respiratory Outcomes
Interventions
positioning
Other
Lead sponsor
Montefiore Medical Center
Other
Eligibility
Not listed
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Sep 10, 2026, 2:30 AM EDT
Completed Not applicable Interventional

Non-Invasive Neurally Adjusted Ventilatory Assist (NAVA) Prone vs Supine in Premature Infants

NCT05968586
View directory record Official record
Conditions
Neonatal Oxygen Desaturation, Premature, Ventilator Lung; Newborn, Apnea of Prematurity
Interventions
Body positioning
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
1 Minute to 3 Months
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 28, 2025 · Synced Sep 10, 2026, 2:30 AM EDT
Completed Not applicable Interventional

A Pilot Multi-Institutional Study to Evaluate the Accuracy of a Breast Cancer Locator in Patients With Palpable Cancers

NCT03573661
View directory record Official record
Conditions
Palpable Breast Cancer
Interventions
Breast Cancer Locator (BCL)
Device
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
4
States / cities
Burlington, Massachusetts • Keene, New Hampshire • Lebanon, New Hampshire + 1 more
Source: ClinicalTrials.gov public record
Updated May 24, 2021 · Synced Sep 10, 2026, 2:30 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 10, 2026, 2:30 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 10, 2026, 2:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Upright Versus Supine Exercise Testing in Fontan-palliated Patients

NCT00633815
View directory record Official record
Conditions
Fontan Palliation
Interventions
Supine positioning, Upright positioning
Other
Lead sponsor
University of Michigan
Other
Eligibility
8 Years to 30 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced Sep 10, 2026, 2:30 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 10, 2026, 2:30 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 10, 2026, 2:30 AM EDT