Browse by Condition in Orange
Lung Cancer
19 trials recruiting
Rheumatoid Arthritis
14 trials recruiting
Leukemia
13 trials recruiting
Ankylosing Spondylitis
13 trials recruiting
Prostate Cancer
10 trials recruiting
Breast Cancer
10 trials recruiting
Heart Attack
9 trials recruiting
Advanced Solid Tumors
9 trials recruiting
Bladder Cancer
8 trials recruiting
Multiple Myeloma
8 trials recruiting
Alzheimers Disease
8 trials recruiting
Epilepsy
7 trials recruiting
Depression
7 trials recruiting
Myasthenia Gravis
7 trials recruiting
Brain Cancer
6 trials recruiting
Pulmonary Embolism
6 trials recruiting
Liver Cancer
6 trials recruiting
Colorectal Cancer
5 trials recruiting
Melanoma
5 trials recruiting
Lupus
4 trials recruiting
Lymphoma
4 trials recruiting
Essential Tremor
4 trials recruiting
Heart Failure
4 trials recruiting
Multiple Sclerosis
4 trials recruiting
Pulmonary Hypertension
3 trials recruiting
Head and Neck Cancer
3 trials recruiting
Ovarian Cancer
3 trials recruiting
IgA Nephropathy
3 trials recruiting
Bipolar Disorder
3 trials recruiting
Ulcerative Colitis
2 trials recruiting
And 27 more conditions with trials in Orange
About Clinical Trials in Orange, CA
Orange, CA is home to 253 actively recruiting clinical trials across 57 medical conditions as of 2026. The most active research areas include lung cancer, rheumatoid arthritis, leukemia. Clinical trials offer free access to new treatments and expert medical care. Participation is always voluntary, and you can withdraw at any time.