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Showing 1–24 of 251 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Phenylephrine Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effect of Brimonidine

NCT03959176
View directory record Official record
Conditions
Intraocular Pressure
Interventions
Brimonidine, Tropicamide, Phenylephrine Ophthalmic Product
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 50 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Sep 2, 2026, 6:59 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Study Developed to Evaluate the Effect of ANG-3777 on QT/QTc Interval

NCT04898907
View directory record Official record
Conditions
Healthy Volunteer
Interventions
ANG-3777 (Therapeutic Dose), ANG-3777 (Supra-therapeutic Dose), Placebo, Moxifloxacin Hydrochloride
Drug
Lead sponsor
Angion Biomedica Corp
Industry
Eligibility
18 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 31, 2021 · Synced Sep 2, 2026, 6:59 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Acute and Chronic Repercussion of Spinal Cord Stimulation After Spinal Cord Injury

NCT07210411
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Tests of sympathetic inhibition, Tests of above level sympathetic activation, Testing of below level sympathetic activation, Epidural stimulation, Transcutaneous stimulation
Diagnostic Test · Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 50 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2031
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 4 Interventional Results available

No Drop Post-Op Cataract Surgery

NCT03864133
View directory record Official record
Conditions
Cataract
Interventions
Omidria
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
55 Years to 90 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Nov 29, 2023 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Bioequivalence of R406 in Healthy Volunteers When Given 100mg and 150 mg of Fostamatinib

NCT01645085
View directory record Official record
Conditions
Healthy Volunteers
Interventions
MCC-based 13% drug loaded tablets, Mannitol-based 38% drug-loaded tablet
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 55 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 18, 2013 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Pharmacokinetic Study to Evaluate BBI-5000 Capsules and Food Effect in Healthy Adult Subjects

NCT02590289
View directory record Official record
Conditions
Dermatitis, Atopic
Interventions
BBI-5000
Drug
Lead sponsor
Fresh Tracks Therapeutics, Inc.
Industry
Eligibility
19 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jan 18, 2023 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Not applicable Interventional Results available

Prospective Hemodynamic and Pharmacokinetic Analysis of Oxymetazoline Absorption

NCT02453841
View directory record Official record
Conditions
Adenoidectomy, Functional Endoscopic Sinus Surgery (FESS), Turbinate Surgery
Interventions
Oxymetazoline
Drug
Lead sponsor
Richard Cartabuke
Other
Eligibility
2 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 17, 2018 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Investigation Of Absorption And Pharmacokinetics Of A Single Dose Of Controlled Release Pregabalin Tablet Administered Fasted At Bedtime Or Immediately Following A 400-500 or 600-750 Calorie Evening Meal As Compared To Single Dose Of Immediate Release Pregabalin Capsule In Healthy Volunteers

NCT01291524
View directory record Official record
Conditions
Healthy
Interventions
Pregabalin controlled release, 330 mg, 400 to 500 calorie, Pregabalin controlled release, 330 mg, 600- 750 calorie, Pregabalin controlled release, 330 mg, bedtime, Pregabalin immediate release, 300 mg
Drug
Lead sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jan 21, 2021 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 3 Interventional Results available

An Evaluation of the Reduction in Erythema in Adult Patients With Moderate to Severe Persistent Facial Erythema Associated With Rosacea

NCT03352323
View directory record Official record
Conditions
Rosacea, Erythema
Interventions
Oxymetazoline
Drug
Lead sponsor
Padagis LLC
Industry
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2021 · Synced Sep 2, 2026, 6:59 AM EDT
Not listed Phase 2 Interventional

Methylene Blue as a Third-line Vasopressor in Septic Shock

NCT04089072
View directory record Official record
Conditions
Septic Shock
Interventions
Methylene Blue, Phenylephrine
Drug
Lead sponsor
Carilion Clinic
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 25, 2022 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 2 Interventional

A Placebo and Active Controlled Study of ONO-6950 in Asthmatic Patients

NCT01536041
View directory record Official record
Conditions
Asthma
Interventions
ONO-6950, Montelukast, Placebo
Drug
Lead sponsor
Ono Pharma USA Inc
Industry
Eligibility
18 Years to 60 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
9
States / cities
Los Angeles, California • San Diego, California • Denver, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 2 Interventional Results available

A Study to Estimate Effect of 4 Different Doses of AZD3355 on Reflux Episodes, Which Patients With Gastroesophageal Reflux Disease (GERD) May Experience

NCT01043185
View directory record Official record
Conditions
Gastroesophageal Reflux Disease
Interventions
AZD3355, placebo
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 70 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 13, 2011 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 4 Interventional Results available

Management of Acute Pulmonary Hypertensive Crisis in Children With Known Pulmonary Arterial Hypertension

NCT05439460
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Phenylephrine, Epinephrine, Arginine Vasopressin
Drug
Lead sponsor
Stanford University
Other
Eligibility
1 Year to 18 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Local Antioxidant Therapy Vasoconstriction Effects in Different Races

NCT03684213
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Vasoconstriction
Interventions
Control (Norepinephrine), Norepinephrine + Ascorbic Acid, Norepinephrine + L-NAME, Norepinephrine + L-NAME + Ascorbic Acid
Drug
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
18 Years to 35 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2024
U.S. locations
1
States / cities
Arlington, Texas
Source: ClinicalTrials.gov public record
Updated Jun 10, 2024 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Effect of Timing of Food Intake on the Pharmacokinetics of Abiraterone Following Single-Dose Administration of Abiraterone Acetate Tablets in Healthy Caucasian and Japanese Men

NCT01575587
View directory record Official record
Conditions
Pharmacology
Interventions
Abiraterone: Treatment A, Abiraterone: Treatment B, Abiraterone: Treatment C, Abiraterone: Treatment D
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
25 Years to 35 Years · Male only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Jan 9, 2014 · Synced Sep 2, 2026, 6:59 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Role of Sympathetic Overactivity and Angiotensin II in PTSD and CV

NCT02560805
View directory record Official record
Conditions
Stress Disorders, Post-Traumatic
Interventions
Microneurography, Combat virtual reality video clip, Handgrip Exercise, Cold Pressor Test (CPT), Sodium Nitroprusside (SNP), Phenylephrine, Losartan, Atenolol, Transcutaneous Vagal Nerve Stimulation (tVNS), Sham Transcutaneous Vagal Nerve Stimulation (tVNS)
Procedure · Behavioral · Drug + 1 more
Lead sponsor
Emory University
Other
Eligibility
18 Years to 65 Years
Enrollment
134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Study in Healthy Volunteers

NCT01365117
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Technosphere® Insulin Inhalation Powder
Drug
Lead sponsor
Mannkind Corporation
Industry
Eligibility
18 Years to 45 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Neptune City, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 13, 2012 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of Local Antioxidant Therapy on Racial Differences in Vasoconstriction

NCT03680404
View directory record Official record
Conditions
Cardiovascular Diseases, Cardiovascular Risk Factor, Vasoconstriction
Interventions
Control (Phenylephrine), Phenylephrine + Apocynin, Phenylephrine + Allopurinol, Phenylephrine + Tempol
Drug
Lead sponsor
The University of Texas at Arlington
Other
Eligibility
18 Years to 35 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Arlington, Texas
Source: ClinicalTrials.gov public record
Updated Nov 4, 2020 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effect of Upneeq (Oxymetazoline Hydrochloride 0.1%) on Eyelid Position, Eye Redness, and Eye Appearance

NCT04831047
View directory record Official record
Conditions
Ptosis, Eyelid, Conjunctiva Inflamed, Eye Manifestations
Interventions
Oxymetazoline hydrochloride 0.1% ophthalmic solution, Placebo
Drug
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 23, 2023 · Synced Sep 2, 2026, 6:59 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Chemoreflex and Baroreflex Alterations Causing Postural Tachycardia Syndrome With Orthostatic Hyperpnea and Hypocapnia

NCT05923840
View directory record Official record
Conditions
Postural Orthostatic Tachycardia Syndrome, Hypocapnia, Hyperventilation
Interventions
Chemoreflex Testing, Baroreflex testing, Orthostatic stress testing
Diagnostic Test
Lead sponsor
New York Medical College
Other
Eligibility
15 Years to 39 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Hawthorne, New York
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study of the Safety, Efficacy and PK of EYN-1601 in Dilation of the Pupil

NCT02946125
View directory record Official record
Conditions
Mydriasis
Interventions
MDD-administered EYN-1601, Phenylephrine 2.5% Eyedrop, Phenylephrine 10% Eyedrop
Combination Product · Drug
Lead sponsor
Eyenovia Inc.
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Artesia, California
Source: ClinicalTrials.gov public record
Updated Jul 26, 2022 · Synced Sep 2, 2026, 6:59 AM EDT
Completed Phase 1 Interventional

Treatment of Orthostatic Hypotension in Autonomic Failure

NCT00223691
View directory record Official record
Conditions
Autonomic Failure, Orthostatic Hypotension
Interventions
Atomoxetine, Acarbose, Pyridostigmine Bromide, Yohimbine, Midodrine HCl, placebo, Modafinil, Octreotide, water intake, Diphenhydramine Hydrochloride, Ranitidine HCL, Tranylcypromine, Ergotamine/ Caffeine, Celecoxib, Pseudoephedrine, Methylphenidate, Indomethacin, Ibuprofen, Oxymetazoline 0.05% nasal solution, Bovril, Acetazolamide, Rivastigmine tartrate, Carbidopa/levodopa, Inflatable abdominal binder, inflatable abdominal binder (sham)
Drug · Other · Dietary Supplement + 1 more
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years to 85 Years
Enrollment
389 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 17, 2017 · Synced Sep 2, 2026, 6:59 AM EDT
Not listed Phase 2 Interventional

A Study of Efficacy and Safety of Eltoprazine HCl for Treating Levodopa-induced Dyskinesia in Parkinson's Disease Patients

NCT02439125
View directory record Official record
Conditions
Parkinson's Disease, Dyskinesia
Interventions
Eltoprazine HCl, Placebo
Drug
Lead sponsor
Amarantus BioScience Holdings, Inc.
Industry
Eligibility
30 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boca Raton, Florida
Source: ClinicalTrials.gov public record
Updated Apr 21, 2016 · Synced Sep 2, 2026, 6:59 AM EDT
Recruiting Phase 4 Interventional

The Choice of Vasopressor to Prevent Postoperative Acute Kidney Injury After Major Non-Cardiac Surgery

NCT06802224
View directory record Official record
Conditions
Anesthesia, Surgery With General Anesthesia, Noncardiac Surgery, Hypotension During Surgery, Acute Kidney Injury (AKI), Myocardial Injury After Noncardiac Surgery (MINS), Vasopressor
Interventions
Norepinephrine, Phenylephrine
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
18,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
9
States / cities
San Francisco, California • College Park, Maryland • Ann Arbor, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Sep 2, 2026, 6:59 AM EDT