Clinical trials: Vasoconstriction
Epistaxis
Xylometazoline and Cocaine for Nasal Vasoconstriction
The objective of this study is to compare xylometazoline and cocaine's effect on minimizing epistaxis when administered as a local vasoconstrictor prior to nasal intubation.
- Trial name
- NCT05334017
- Testing
- Xylometazoline 0,1%, Cocaine 4%
- Where
- Denmark
- Volunteers
- 120 people
- Sponsor
- Copenhagen University Hospital, Rigshospitalet
Hormone Therapy
Hormone Therapy and Angiotensin-Dependent Arterial and Renal Vasoconstriction in Humans
1. to investigate the association between route of administration of exogenous estrogen (transdermal vs. oral) and cardiorenal risk in cisgender (gender identity aligning with sex at birth) and transgender (gender identity not…
- Trial name
- NCT05442463
- Testing
- Captopril Tablets, Iohexol
- Where
- Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Calgary
Stroke (CVA) or TIA, Headache, Migraine
Onabotulinum Toxin A (Botox) for the Treatment of Persistent Post-Stroke and Vascular Headache
Post stroke headache occurs in approximately 10-23% of all stroke patients. Its onset is shortly after experiencing a stroke, or stroke like event, and persists for at least three months.
- Conditions
- Stroke (CVA) or TIA, Headache, Migraine, Botulinum Toxins, Type A, Cerebral Venous Sinus Thrombosis
- Trial name
- NCT04580238
- Testing
- Botox 200 UNT Injection, Non Botox based Standard of Care Treatments for Headache/Migraine
- Where
- Canada
- Sponsor
- University of Alberta
Cardiovascular Diseases, Cardiovascular Risk Factor
The Effect of Endothelin and L-Arginine on Racial Differences in Vasoconstriction
The goal of the study is to examine the possible mechanisms of impaired cutaneous microvascular function through local heating along with administration of vasoconstrictors.
- Conditions
- Cardiovascular Diseases, Cardiovascular Risk Factor, Vasoconstriction
- Trial name
- NCT03679780
- Testing
- BQ-788, BQ-123, L-Arginine
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- The University of Texas at Arlington
Insulin Resistance, Healthy
Role of Sympathetic Vasoconstriction on Insulin-Mediated Microvascular Recruitment and Glucose Uptake in Obesity
The purpose of this study is to better understand the contribution of sympathetic vasoconstriction to impaired insulin-mediated vasodilation and subsequently insulin-mediated glucose uptake.
- Conditions
- Insulin Resistance, Healthy, Obesity
- Trial name
- NCT03318094
- Testing
- Phentolamine, Saline, Sodium Nitroprusside
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Hyperinsulinemia
Effect of Insulin on Endothelin-Dependent Vascular Tone in the Forearm Circulation
Previous studies have shown that insulin may stimulate the release of endothelin (ET) from endothelial cells. This mechanism may contribute to the adverse vascular effects determined by chronic hyperinsulinemia.
- Trial name
- NCT00001624
- Testing
- Insulin
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Healthy
The Dose-response "Pilot" Study of Topically Delivered Clobetasol Propionate Lotion in Healthy Adult Subjects
To determine the dose-response relationship for Clobex TM (clobetasol propionate) Lotion, 0.05%. This information will be used to estimate the ED50, D1, D2 parameters for use in a full bioequivalence study.
- Trial name
- NCT00864240
- Testing
- Clobex TM (Clobetasol) 0.05% Lotion, single exposure
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Actavis Inc.
Diabetic Neuropathy Peripheral, Small Vessel Disease of Diabetes Mellitus
Microcirculatory Vasomotor Changes in Type 2 Diabetes With Peripheral Neuropathy
Microcirculatory flow is subject to cyclic changes under the influence of heart rate, respiration, myogenic activity, neurogenic factors and endothelial factors.
- Conditions
- Diabetic Neuropathy Peripheral, Small Vessel Disease of Diabetes Mellitus, Vasodilation, Vasoconstriction
- Trial name
- NEUROMICRO (NCT03847779)
- Testing
- "Rest", "Exercise", "Foot lowering"
- Where
- France
- Volunteers
- 108 people, healthy volunteers welcome
- Sponsor
- University of Avignon
Chronic Sinusitis
Comparison of Topical Vasoconstriction in Endoscopic Sinus Surgery
The purpose of our study is to assess the effect of topical vasoconstriction (cocaine 4% versus adrenaline 1/1000) on the surgical field during endoscopic sinus surgery.
- Trial name
- NCT01706952
- Testing
- Cocaine, Adrenaline
- Where
- Canada
- Volunteers
- 45 people
- Sponsor
- Marc Tewfik
Reversible Cerebral Vasoconstriction Syndrome, Varicella-zoster Virus Infection
Reversible Cerebral Vasoconstriction Syndrome and Varicella Zoster Virus
Among patients with thunderclap headache who were admitted to the four participating hospitals, who has diffuse segmental vasoconstriction on CT angiography or MR angiography will be eligible for the study.
- Trial name
- RCVS&VZV (NCT03509701)
- Testing
- VZV-specific antibody response from blood
- Where
- South Korea
- Volunteers
- 40 people
- Sponsor
- Asan Medical Center
Hemorrhage, Postpartum, Hemorrhage
A Pilot Study to Assess the Feasibility and Tolerability of the AccuFlow Perfusion Sensor for Intrapartum Hemorrhage
Obstetric hemorrhage is one of the leading causes of maternal death worldwide. One of the challenges in management of hemorrhage is that young, healthy women compensate for blood loss via peripheral vasoconstriction, so they…
- Conditions
- Hemorrhage, Postpartum, Hemorrhage, Vasoconstriction
- Trial name
- NCT04370639
- Testing
- AccuFlow sensor, Survey
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Megan Lord
Reversible Cerebral Vasoconstriction Syndrome
Endothelial Dysfunction in Reversible Cerebral Vasoconstriction Syndrome
Reversible Cerebral Vasoconstriction Syndrome (RCVS) is a syndrome described at the end of the 20th century. Generally, it has a benign course.
- Trial name
- DESS (NCT04463212)
- Where
- France
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Nantes University Hospital
Hypothermia; Anesthesia
The Comparison of Remimazolam With Propofol in Core Body Temperature
1. Core body temperature is normally tightly regulated to within a few tenths of a degree. The major thermoregulatory defences in humans are sweating, arteriovenous shunt vasoconstriction, and shivering. 2.
- Trial name
- NCT05215834
- Testing
- Remifentanil
- Where
- South Korea
- Volunteers
- 90 people
- Sponsor
- Wonkwang University Hospital
Vasoconstriction, Vasodilation
Sympathetic Neurovascular Transduction: Role of Adrenergic Receptors and Sex Differences
The main purpose of this interventional study is to examine differences in resting blood pressure control between healthy males and females. The main questions it aims to answer are: 1.
- Trial name
- STARS (NCT05997732)
- Testing
- Phenylephrine Hydrochloride, Isoproterenol Hydrochloride, Norepinephrine Bitartrate
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Hypertension, Cancer
Bevacizumab and Vasoconstriction
Rationale: The introduction of angiogenesis inhibitors has remarkably improved treatment of patients with several types of cancer. One of the most common side effects of angiogenesis inhibitors is hypertension.
- Trial name
- BVZ1 (NCT00929058)
- Testing
- Bevacizumab
- Where
- Netherlands
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Radboud University Medical Center
Vasodilation, Vasoconstriction
Sex Differences in Sympathetic Activity and Vascular Reactivity During Acute and Chronic Hypoxia.
This study aims to investigate sex differences in blood pressure control associated with exposure to acute hypoxia (low oxygen), and short term acclimatization to hypoxia at high altitude.
- Trial name
- NCT05001048
- Testing
- Phenylephrine Hydrochloride, Cold Pressor Test, Isocapnic Acute Hypoxia
- Where
- 2 sites in Canada
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Vasoconstriction
Evaluation of the Vasoconstriction Properties of MC2-01 Cream
The objective of this trial is to compare the vasoconstriction potential
- Trial name
- NCT03758365
- Testing
- MC2-01 Cream, Clobetasol Propionate 0.05% Lotion, Betamethasone Dipropionate 0.05% Cream
- Where
- France
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- MC2 Therapeutics
Pulmonary Arterial Hypertension, Vasodilation
Role of Endothelin-A (ETA) and Endothelin-B (ETB) Receptors in the Vasodilatory Response to Endothelin-3 (ET-3)
Endothelin-1 (ET-1) has been linked to a number of conditions including pulmonary arterial hypertension (PAH). ET-1 acts via 2 receptors, ETA and ETB.
- Conditions
- Pulmonary Arterial Hypertension, Vasodilation, Vasoconstriction
- Trial name
- NCT01100736
- Testing
- Bosentan, Sitaxsentan, Endothelin-3
- Where
- United Kingdom
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Altitude Sickness, Hypertension, Pulmonary
AZ, MZ, and the Pulmonary System Response to Hypoxia
The purpose of this proposal is to compare the physiological effects of acetazolamide (AZ) and methazolamide (MZ) on the control of breathing and hypoxic pulmonary vasoconstriction.
- Trial name
- NCT02760121
- Testing
- Acetazolamide, Methazolamide
- Where
- Canada
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Heart Failure
Effects of Low-frequency Electrical Stimulation in Patients With Advanced HF
The purpose of this study is to verify the effects of low frequency functional electrical stimulation in heart failure patients hospitalized for treatment of the syndrome.
- Trial name
- NCT01886430
- Testing
- Functional electrical stimulation
- Where
- Brazil
- Volunteers
- 30 people
- Sponsor
- University of Sao Paulo General Hospital