US Clinical Trial Search

Search over 120,000 active clinical trial listings in the US based on keyword and/or location. Search for International Clinical Trials.

  • To view all studies near you: enter your zip code, set distance to "50 miles," and click "Search." Add keywords to refine search.
  • To view all studies in the US relating to certain condition: please enter keyword for condition (e.g. diabetes), leave Zip Code box blank, and click "Search."

Zip Code:
Search results will appear below. Popular searches.

Didn't find what you were looking for? Try these alternatives:

Popular clinical trials searches on

Over 300,000 clinical trials searches are done each month at! The most popular searches are shown below.

Keyword Number of Searches Per Month
Obesity 29,380 searches
Healthy Volunteers 23,140 searches
Infertility 18,850 searches
Cancer 17,160 searches
Diabetes 16,380 searches
Multiple Sclerosis 10,920 searches
Depression 10,790 searches
Hepatitis 7,930 searches
Stem Cells 7,800 searches
Alzheimer's Disease 6,110 searches
Stretch Marks 5,850 searches
Sleep 5,200 searches
Fibromyalgia 4,810 searches
Herpes 4,420 searches
Asthma 4,160 searches
Hypertension (High Blood Pressure) 4,160 searches
Smoking 3,640 searches
Dental 3,250 searches
Psoriasis 3,250 searches
Migraine 3,120 searches
ADHD 2,860 searches
Osteoarthritis 2,860 Searches
Back Pain 2,860 searches
Constipation 2,860 searches
COPD 2,860 searches
Hair Loss 2,860 searches
Hearing 2,860 searches
HIV 2,730 searches
Arthritis 2,600 Searches
Erectile Dysfunction 2,470 Searches
Pain 2,470 Searches
Sleep Apnea 2,470 Searches
Spinal Cord Injury 2,470 Searches
Anxiety 2,210 Searches
Parkinsons Disease2,210 Searches
Acne2,080 Searches
Insomnia1,950 Searches
Allergies1,690 Searches
Menopause1,690 Searches
PCOS1,690 Searches
Stroke1,690 Searches
Bipolar1,430 Searches
Fibroids1,430 Searches
Ulcerative Colitis1,430 Searches
Headache1,170 Searches
Hip Pain1,170 Searches
Knee Pain1,170 Searches
Prostate1,170 Searches
Schizophrenia1,170 Searches
Eye Disease1,040 Searches
Hot Flashes1,040 Searches
Shingles1,040 Searches
Rosacea910 Searches
ALS780 Searches
Cholesterol780 Searches
Chronic Pain780 Searches
Diet780 Searches
Endometriosis780 Searches
Gout780 Searches
High Cholesterol780 Searches
HPV780 Searches
Lupus780 Searches
Sleep Study780 Searches
Glaucoma650 Searches
Memory Loss650 Searches
Narcolepsy650 Searches
Acid Reflux520 Searches
Addiction520 Searches
Autism520 Searches
Gastric Bypass520 Searches
Libido520 Searches
Liver520 Searches
Low Back Pain520 Searches
Lymphoma520 Searches
Neuropathy520 Searches
PTSD520 Searches
Snoring520 Searches
Aids390 Searches
Barrett'S Esophagus390 Searches
Chronic Constipation390 Searches
Gallstones390 Searches
Kidney Failure 390 Searches
Uterine Fibroids 390 Searches
Epilepsy 260 Searches
GERD 260 Searches
Obsessive Compulsive Disorder 260 Searches
Smoking Cessation 260 Searches
Tinnitus 260 Searches
other searches 31,824
counter customizable free hit