Clinical trials: Physiology
Normal Physiology
Task-dependent Effects of TMS on the Neural Biomarkers of Episodic Memory
Background: Transcranial magnetic stimulation (TMS) of the brain has been used to change the activity and connections in the brain to improve memory.
- Trial name
- NCT04694131
- Testing
- TMS
- Where
- United States
- Volunteers
- 43 people
- Sponsor
- National Institute of Neurological Disorders and Stroke (NINDS)
Ocular Physiology
Evaluation of Delefilcon A and Senofilcon A Daily Disposable Toric Soft Contact Lenses Over Two Weeks of Wear
This will be a multi-site, bilateral, dispensing, randomized, controlled, double-masked, 2×2 crossover study to evaluate ocular physiological response.
- Trial name
- NCT06161012
- Testing
- Senofilcon A contact lenses (TEST), Delefilcon A contact lenses (CONTROL)
- Where
- 6 sites in United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Single Ventricle Physiology
Training in Exercise Activities and Motion for Growth
To determine if an exercise program of passive range of motion (ROM) is safe and feasible in infants with single ventricle (SV) physiology after their Norwood procedure.
- Trial name
- T4G (NCT01917084)
- Testing
- Passive range of motion (ROM) exercise
- Where
- 3 sites in United States
- Volunteers
- 20 people
- Sponsor
- Carelon Research
Ventilation, Reproducibility
Assessing Variability of the Ventilatory Response to Duffin's Rebreathing Procedure
This study will combine Duffin's rebreathing procedure with additional study procedures, such as quantitative pupillometry, that are planned for subsequent clinical studies in order to confirm feasibility and gather…
- Conditions
- Ventilation, Reproducibility, Physiology
- Trial name
- NCT05168501
- Testing
- Rebreathing procedure
- Where
- United States
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Food and Drug Administration (FDA)
Normal Physiology
Dopaminergic Modulation of Brain Activation Using Simultaneous PET/Pharmacological MRI
Background: Dopamine (DA) is a chemical signal in the brain linked to learning, memory, and habits. Stimulant drugs like methylphenidate can increase DA in the brain. Researchers want to measure DA with and without this drug.
- Trial name
- NCT03326245
- Testing
- Methylphenidate Pill, Intravenous methylphenidate
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
Ocular Physiology
Evaluation of ACUVUE® OASYS 1-Day for Astigmatism Contact Lenses With Alternative Lidstock
This will be a single-visit, randomized, double-masked, bilateral wear, non-dispensing, 2-sequence × 2-period crossover study to evaluate subject reported ocular symptoms.
- Trial name
- NCT05713552
- Testing
- Acuvue Oasys 1 Day for Astigmatism with Legacy lidstock, Acuvue Oasys 1 Day for Astigmatism with Amcor laminated lidstock
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Ocular Physiology
Clinical Evaluation of Delefilcon A and Verofilcon A Daily Disposable Toric Soft Contact Lenses Over One Week of Wear
This is a bilateral-wear, dispensing, randomized, controlled, double-masked, 2-sequence × 2-period crossover study to evaluate ocular physiology following contact lens wear.
- Trial name
- NCT05502289
- Testing
- TEST LENS, CONTROL LENS
- Where
- 6 sites in United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Ocular Physiology
Feasibility Evaluation of Daily Disposable Toric Soft Contact Lenses Manufactured With an Alternative Hydration Process
This is a bilateral wear, dispensing, randomized, controlled, double-masked, 2-sequence × 2-period crossover study to evaluate ocular physiology following approximately one week of contact lens wear.
- Trial name
- NCT05427539
- Testing
- TEST LENS, CONTROL LENS
- Where
- 6 sites in United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Normal Physiology
Genomic Responses of Human Immune and Non-Immune Cells to Glucocorticoids
Background: The immune system defends the body against bacteria and other harmful invaders. But it can overact and attack healthy cells by mistake.
- Trial name
- NCT02798523
- Testing
- Methylprednisolone sodium succinate(Solu-Medrol), Topical methylprednisolone (Advantan emulsion 0 /1%)
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Ocular Physiology
Clinical Evaluation of Two Daily Disposable Toric Soft Contact Lenses Over One Week of Wear
This is a bilateral wear, dispensing, randomized, controlled, double-masked, 2-sequence ×2-period crossover study to evaluate ocular physiology following contact lens wear.
- Trial name
- NCT05291936
- Testing
- PRECISION1® for Astigmatism Contact Lenses, MyDay® Toric Soft Contact Lenses
- Where
- 5 sites in United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Vision Care, Inc.
Normal Physiology
Sensory Afferents for Deep Pressure Sensation
Background: Much is known about how people perceive light touch, temperature, and pain. But less is known about how deep pressure is perceived. Deep pressure is an important part of many touch therapies, like massage therapy.
- Trial name
- NCT03937778
- Testing
- Deep pressure block
- Where
- United States
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- National Center for Complementary and Integrative Health (NCCIH)
Haemodynamic Physiology
Electrical Stimulation of the Muscle Pumps of the Leg
The most efficient way of electrically stimulating the calf muscles has not been identified. The investigators aim to investigate this using a matrix of electrical parameters, and measuring the outcome with vascular ultrasound of…
- Trial name
- Muscle Pump (NCT02532556)
- Testing
- Electrical stimulation (Digitimer)
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Imperial College London
Choroid Physiology
Circadian Macular Volume Changes in the Choroid
Choroidal volume measured fluctuates significantly over a 24 hour time frame.
- Trial name
- CVdi (NCT02223546)
- Where
- Austria
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Female Reproductive Physiology
Acute Effects of Progesterone on LH Pulses During the Follicular Phase (CRM006)
The rapidity with which progesterone slows LH (and by inference GnRH) pulse frequency in women is unclear. The investigators hypothesize that progesterone slows LH pulse frequency within 10 hours.
- Trial name
- NCT01602679
- Testing
- oral micronized progesterone suspension
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Virginia
Human Gastrointestinal Physiology Data
Modernization of in vivo-in Vitro Oral Bioperformance Prediction and Assessment
In vivo drug dissolution in the gastrointestinal (GI) tract is largely unmeasured. The purpose of this clinical study was to evaluate the in vivo drug dissolution and systemic absorption of the BCS Class IIa drug ibuprofen under…
- Trial name
- NCT02806869
- Testing
- Single dose of ibuprofen (800 mg tablet), Pulmocare, two 8.0 oz (236.6 mL) cans
- Where
- United States
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- University of Michigan