Normal Clinical Trials

1 recruiting

Frequently Asked Questions

Common questions about Normal clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 188 trials

Recruiting
Early Phase 1

Developing Transcranial Neuromodulation Protocols for Learning and Decision-Making

Normal Physiology
National Institute on Drug Abuse (NIDA)600 enrolled1 locationNCT06561828
Recruiting

Perception, Sensation, Cognition and Action in Humans

Normal Physiology
National Eye Institute (NEI)10,200 enrolled2 locationsNCT03407066
Recruiting
Not Applicable

Sociocultural & Biobehavioral Influences on Pain Expression and Assessment

PainHealthy VolunteersNormal Physiology
National Center for Complementary and Integrative Health (NCCIH)700 enrolled1 locationNCT03258580
Recruiting

Functional Magnetic Resonance Imaging Sleep Study With Auditory Stimuli

Normal Physiology
National Institute of Neurological Disorders and Stroke (NINDS)2,378 enrolled1 locationNCT02629107
Recruiting

Natural History of the Human Biological Response to Environmental Exposure and Injury

Metabolic DiseaseInflammationNormal Controls
National Institute of Environmental Health Sciences (NIEHS)2,000 enrolled1 locationNCT04888923
Recruiting

Assessing and Improving Quantitative Magnetic Resonance Imaging Metrics in Human Subjects

Normal Physiology
National Institute of Neurological Disorders and Stroke (NINDS)200 enrolled1 locationNCT05604534
Recruiting
Phase 3

A Study to Test Whether Nerandomilast Can Help Slow Down Changes in the Lung in People With a Family History of Pulmonary Fibrosis

Interstitial Lung DiseasesFamilial Pulmonary FibrosisInterstitial Lung Abnormalities
Boehringer Ingelheim80 enrolled56 locationsNCT07201922
Recruiting
Not Applicable

Development Of Neuroimaging Methods To Assess The Neurobiology Of Addiction

Normal Physiology
National Institute on Alcohol Abuse and Alcoholism (NIAAA)192 enrolled1 locationNCT02535702
Recruiting
Not Applicable

MRS Measurement of Glutamate and GABA Metabolism in Brain

Normal Physiology
National Institute of Mental Health (NIMH)200 enrolled1 locationNCT00109174
Recruiting

Development of 3T Magnetic Resonance Research Methods for NIA Studies

Normal Physiology
National Institute on Aging (NIA)1,000 enrolled1 locationNCT01324206
Recruiting
Not Applicable

Brain Vascular and Neural Function Linked to Balance Across the Adult Lifespan

Cognitively NormalNeurotypical
University of Minnesota102 enrolled1 locationNCT06127667
Recruiting

Development and Validation of Learning and Decision-Making Tasks

Normal Physiology
National Institute on Drug Abuse (NIDA)550 enrolled1 locationNCT05707806
Recruiting
Not Applicable

Defining Neurobiological Links Between Substance Use and Mental Illness

Substance Use DisorderNormal PhysiologyMajor Depressive Disorder
National Institute on Drug Abuse (NIDA)620 enrolled1 locationNCT05538910
Recruiting

The Combined First Trimester Screening

Fetal Growth RestrictionPreterm LaborPreeclampsia (PE)+4 more
Institute of Health Information and Statistics of the Czech Republic2,000 enrolled3 locationsNCT07015203
Recruiting

Mayo Clinic Upper Digestive Disease Survey

Esophageal CancerEsophagus CancerEsophageal Neoplasms+6 more
Mayo Clinic1,000 enrolled1 locationNCT02530983
Recruiting

White Matter Distortion and Dementia Biomarkers in Normal Pressure Hydrocephalus (NPH)

Normal Pressure Hydrocephalus
Imperial College London100 enrolled1 locationNCT07103681
Recruiting
Not Applicable

The Effect of the Valsalva Maneuver in Endometrial Biopsy: A Randomized Controlled Trial

Abnormal Uterine BleedingPain in Endometrial Biopsy
Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization120 enrolled1 locationNCT07496905
Recruiting

Collection of Bone Marrow Aspirate From Normal Volunteers

Normal Aging
National Institute on Aging (NIA)2,000 enrolled1 locationNCT03949647
Recruiting

Investigating the Impact of Obesity on Pubertal Development in Girls

ObesityNormal PhysiologyPuberty
National Institute of Environmental Health Sciences (NIEHS)150 enrolled1 locationNCT02583646
Recruiting

Tissue Procurement for Biomedical Research

Normal Volunteers
National Institute on Aging (NIA)5,000 enrolled1 locationNCT00182858