Clinical trials near you

Clinical trials in the San Diego area

Name: Clinical trials in the San Diego area
Creator: LocalTrial
License: https://creativecommons.org/licenses/by/4.0/

1,212 studies are recruiting volunteers at 645 research sites in the San Diego-Chula Vista-Carlsbad, CA area.

Sites in San Diego, La Jolla, Chula Vista, La Mesa, Escondido, Encinitas and 16 more towns.

#19 in the US for recruiting studies#2 in California#37 in the US per resident

Studies recruiting: 1,212
Research sites: 645
Conditions studied: 188
Studies per 100,000 residents: 36.7

Conditions being studied

The conditions with the most studies recruiting in the area. A study can be for more than one condition.

Lung cancer62 studies
Breast cancer56 studies
Overweight and obesity44 studies
Prostate cancer39 studies
Type 2 diabetes34 studies
Depressive disorder32 studies
Inflammatory bowel disease (IBD)32 studies
Liver disease32 studies
Colorectal cancer (bowel cancer)31 studies
Leukemia31 studies
Heart failure28 studies
Ovarian cancer28 studies
Head and neck cancer26 studies
Pancreatic cancer26 studies
Non-Hodgkin's lymphoma25 studies

All 188 conditions

Lung cancer62
Breast cancer56
Overweight and obesity44
Prostate cancer39
Type 2 diabetes34
Depressive disorder32
Inflammatory bowel disease (IBD)32
Liver disease32
Colorectal cancer (bowel cancer)31
Leukemia31
Heart failure28
Ovarian cancer28
Head and neck cancer26
Pancreatic cancer26
Non-Hodgkin's lymphoma25
Uterine cancer22
Kidney cancer20
Neuroendocrine tumor20
Skin cancer20
Crohn's disease19
Peripheral nerve disease19
Schizophrenia19
Melanoma18
Cardiomyopathy16
Ulcerative colitis (UC)16
Cardiovascular disease15
Endometrial cancer15
Fatty liver disease (MASH/NASH)15
Anxiety disorder14
Brain cancer14
Post-traumatic stress disorder (PTSD)14
Stroke14
Bladder cancer13
Cervical cancer13
Human immunodeficiency virus infection (HIV)13
Type 1 diabetes13
Alzheimer's disease12
Intellectual disability12
Osteoarthritis (OA)12
Retinal degeneration12
Age-related macular degeneration (AMD)11
Eczema (atopic dermatitis)11
Esophageal cancer11
Psychotic disorder11
Gastric cancer (stomach cancer)10
Motor neuron disease (MND)10
Psoriasis10
Rheumatoid arthritis10
Sarcoma of soft tissue10
Traumatic brain injury10
Atrial fibrillation (AF)9
Chronic skin ulcer9
Congenital heart disease9
Liver cancer9
Low back pain9
Parkinson's disease (PD)9
Sleep apnea9
Systemic lupus erythematosus (SLE)9
Amyotrophic lateral sclerosis (ALS)8
Chronic kidney disease (CKD)8
Epilepsy8
Fallopian tube cancer8
High blood pressure (hypertension)8
Ischemic heart disease (IHD)8
Migraine8
Bipolar disorder7
COVID-197
Scoliosis7
Amyloidosis6
Eating disorder6
Influenza (flu)6
Multiple myeloma (MM)6
Thrombocytopenia6
Alopecia5
Anemia5
Asthma5
Autism spectrum disorder (ASD)5
Biliary tract cancer5
Cystic fibrosis5
Gastrointestinal stromal tumor5
Interstitial lung disease5
Multiple sclerosis (MS)5
Myelodysplastic syndrome (MDS)5
Neuroblastoma5
Neuropathic pain5
Psoriatic arthritis (PsA)5
Schizoaffective disorder5
Systemic sclerosis5
Thrombotic microangiopathy5
Abdominal aortic aneurysm4
Chronic obstructive pulmonary disease (COPD)4
Down syndrome4
Dry eye syndrome4
Graft-versus-host disease4
Opioid use disorder4
Pericarditis4
Alcohol dependence3
Alopecia areata3
Cannabis use disorder3
Complex regional pain syndrome (CRPS)3
Esophagitis3
Gout3
Hearing loss3
Hemophilia A3
Hemophilia B3
Hereditary angioedema3
Hodgkin's lymphoma3
Huntington's disease (HD)3
Idiopathic inflammatory myopathy3
Immune thrombocytopenic purpura (ITP)3
Macular edema3
Myelofibrosis3
Peripheral vascular disease3
Rett's disorder3
Sjogren's syndrome3
Smoking dependence3
Abdominal cancer2
Acne2
Alpha-1-antitrypsin deficiency (AATD)2
Anal cancer2
Attention-deficit hyperactivity disorder (ADHD)2
Birth control (contraception)2
Bone cancer2
Celiac disease2
Cutaneous T-cell lymphoma2
Diabetic eye disease2
Duchenne muscular dystrophy (DMD)2
Endometriosis2
Gallbladder cancer2
Graves' disease2
Growth hormone deficiency2
Insomnia2
Neuromyelitis optica spectrum disorder (NMOSD)2
Peritoneal cancer2
Progressive supranuclear palsy (PSP)2
Recurrent urinary tract infection (UTI)2
Rhabdomyosarcoma2
Short-sightedness (myopia)2
Sickle cell disease2
Spinal muscular atrophy (SMA)2
Testicular cancer2
Ureteral cancer2
Urinary incontinence2
Vascular dementia2
Actinic keratosis1
Acute coronary syndrome1
Bile duct cancer1
Chronic fatigue syndrome1
Essential thrombocythemia (ET)1
Fibromyalgia1
Frown lines (glabellar lines)1
Friedreich ataxia1
Frontotemporal dementia (FTD)1
Functional dyspepsia1
Germ cell tumor1
Gestational diabetes1
Glaucoma1
Hemolytic uremic syndrome1
Hepatitis D1
Hidradenitis suppurativa (HS)1
Hypercholesterolemia1
Hypertriglyceridemia1
Hypothyroidism1
Irritable bowel syndrome (IBS)1
Juvenile idiopathic arthritis (JIA)1
Menopause symptoms1
Narcolepsy1
Obsessive-compulsive disorder (OCD)1
Ocular hypertension1
Osteoporosis1
Overactive bladder (OAB)1
Pelvic tumor1
Post-transplant lymphoproliferative disorder1
Prader-Willi syndrome1
Primary biliary cholangitis (PBC)1
Primary sclerosing cholangitis1
Pulmonary hypertension1
Radiculopathy1
RSV infection1
Stargardt's disease1
Thyroid cancer1
Tourette's syndrome1
Tricuspid valve regurgitation1
Urethral cancer1
Vaginal cancer1
Vasculitis1
Vitiligo1
Vulvar cancer1

295 more studies are for conditions not yet in our catalog.

Whom the studies accept

The share of the area's studies open to each group. A study can accept several.

Adults 18 to 6493%
Adults 65 and over84%
Children and teens (under 18)21%
Healthy volunteers11%
Open to all sexes90%
Women only6%
Men only4%

67 studies are for children only.

Study phases

Earlier phases test safety in fewer people; later phases compare a treatment with the usual care in many.

Early phase 10%
Phase 17%
Phase 1/26%
Phase 219%
Phase 2/33%
Phase 328%
Phase 43%
No phase (device, behavioral and other studies)20%
Not stated14%

Most active research sites

The sites recruiting for the most studies in the area.

University of California San DiegoLa Jolla137 studies
University of California - San DiegoLa Jolla104 studies
Rady Children's Hospital - San DiegoSan Diego99 studies
UC San Diego Moores Cancer CenterLa Jolla88 studies
UC San Diego Moores Cancer CenterLa Jolla53 studies
UCSD Moores Cancer CenterLa Jolla28 studies
VA San Diego Healthcare System, San Diego, CASan Diego28 studies
UC San Diego Medical Center - HillcrestSan Diego24 studies
Kaiser Permanente-San Diego ZionSan Diego22 studies
Kaiser Permanente-San MarcosSan Marcos22 studies
Scripps HealthLa Jolla21 studies
UCSD Medical CenterLa Jolla20 studies
University of California San DiegoSan Diego20 studies
University of California San DiegoSan Diego16 studies
Naval Medical Center -San DiegoSan Diego15 studies

Cite these figures

Free to use under CC BY 4.0. Please credit LocalTrial with a link to this page.

As text

Source: LocalTrial, Clinical trials in the San Diego area, https://www.localtrial.com/clinical-trials/california/san-diego, updated November 12, 2026.

With the link, for a web page

Source: <a href="https://www.localtrial.com/clinical-trials/california/san-diego">LocalTrial, Clinical trials in the San Diego area</a>, updated November 12, 2026.

About these figures

Counted from ClinicalTrials.gov, the U.S. registry of clinical studies, for studies recruiting in the United States. A study is counted once however many sites it has in the area.

The area is the U.S. Census Bureau's San Diego-Chula Vista-Carlsbad, CA metropolitan area. Residents: 3,298,799, the Census Bureau's latest estimate. Updated November 12, 2026.

These figures describe studies, not advice. Talk to your doctor before joining one.

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