Clinical trials near you
Clinical trials in the Portland area
920 studies are recruiting volunteers at 356 research sites in the Portland-Vancouver-Hillsboro, OR-WA area.
Sites in Portland, Vancouver, Clackamas, Gresham, Tualatin, Beaverton and 8 more towns.
#30 in the US for recruiting studies#1 in Oregon#40 in the US per resident
- Studies recruiting
- 920
- Research sites
- 356
- Conditions studied
- 161
- Studies per 100,000 residents
- 36.3
Conditions being studied
The conditions with the most studies recruiting in the area. A study can be for more than one condition.
- Lung cancer78 studies
- Breast cancer51 studies
- Leukemia49 studies
- Non-Hodgkin's lymphoma42 studies
- Colorectal cancer (bowel cancer)40 studies
- Prostate cancer37 studies
- Head and neck cancer35 studies
- Ovarian cancer33 studies
- Uterine cancer31 studies
- Pancreatic cancer26 studies
- Endometrial cancer25 studies
- Neuroendocrine tumor23 studies
- Skin cancer19 studies
- Kidney cancer18 studies
- Melanoma17 studies
All 161 conditions
- Lung cancer78
- Breast cancer51
- Leukemia49
- Non-Hodgkin's lymphoma42
- Colorectal cancer (bowel cancer)40
- Prostate cancer37
- Head and neck cancer35
- Ovarian cancer33
- Uterine cancer31
- Pancreatic cancer26
- Endometrial cancer25
- Neuroendocrine tumor23
- Skin cancer19
- Kidney cancer18
- Melanoma17
- Bladder cancer16
- Liver disease16
- Heart failure15
- Cardiovascular disease14
- Multiple myeloma (MM)14
- Peripheral nerve disease14
- Sarcoma of soft tissue14
- Gastric cancer (stomach cancer)13
- Retinal degeneration13
- Brain cancer12
- Esophageal cancer12
- Overweight and obesity12
- Parkinson's disease (PD)12
- Alzheimer's disease11
- Cervical cancer11
- Inflammatory bowel disease (IBD)11
- Myelodysplastic syndrome (MDS)11
- Age-related macular degeneration (AMD)10
- Anemia10
- Fallopian tube cancer10
- Ischemic heart disease (IHD)10
- Liver cancer10
- Cardiomyopathy8
- Stroke8
- Traumatic brain injury8
- Amyloidosis7
- Crohn's disease7
- Cystic fibrosis7
- Depressive disorder7
- Attention-deficit hyperactivity disorder (ADHD)6
- Graft-versus-host disease6
- High blood pressure (hypertension)6
- Migraine6
- Neuroblastoma6
- Psoriasis6
- Thrombocytopenia6
- Type 2 diabetes6
- Ulcerative colitis (UC)6
- Alopecia5
- Chronic kidney disease (CKD)5
- Congenital heart disease5
- Eczema (atopic dermatitis)5
- Epilepsy5
- Interstitial lung disease5
- Juvenile idiopathic arthritis (JIA)5
- Myelofibrosis5
- Phenylketonuria (PKU)5
- Thrombotic microangiopathy5
- Tricuspid valve regurgitation5
- Abdominal aortic aneurysm4
- Asthma4
- Biliary tract cancer4
- Chronic obstructive pulmonary disease (COPD)4
- Down syndrome4
- Gastrointestinal stromal tumor4
- Immune thrombocytopenic purpura (ITP)4
- Intellectual disability4
- Motor neuron disease (MND)4
- Multiple sclerosis (MS)4
- Post-transplant lymphoproliferative disorder4
- Post-traumatic stress disorder (PTSD)4
- Pulmonary hypertension4
- Rheumatoid arthritis4
- Abdominal cancer3
- Alopecia areata3
- Amyotrophic lateral sclerosis (ALS)3
- Anxiety disorder3
- Atrial fibrillation (AF)3
- Chronic skin ulcer3
- Duchenne muscular dystrophy (DMD)3
- Gallbladder cancer3
- Hodgkin's lymphoma3
- Huntington's disease (HD)3
- Idiopathic inflammatory myopathy3
- Opioid use disorder3
- Osteoarthritis (OA)3
- Peripheral vascular disease3
- Peritoneal cancer3
- Spinal muscular atrophy (SMA)3
- Stargardt's disease3
- Systemic lupus erythematosus (SLE)3
- Type 1 diabetes3
- Vasculitis3
- Actinic keratosis2
- Alcohol dependence2
- Axial spondyloarthritis2
- Behcet's syndrome2
- COVID-192
- Diabetic eye disease2
- Essential thrombocythemia (ET)2
- Glaucoma2
- Growth hormone deficiency2
- Hypercholesterolemia2
- Influenza (flu)2
- Neuropathic pain2
- Ocular hypertension2
- Psoriatic arthritis (PsA)2
- Rhabdomyosarcoma2
- Sleep apnea2
- Systemic sclerosis2
- Testicular cancer2
- Uveitis2
- Vitiligo2
- Acne1
- Acromegaly1
- Bile duct cancer1
- Birth control (contraception)1
- Cannabis use disorder1
- Chronic sinusitis1
- Cutaneous T-cell lymphoma1
- Eating disorder1
- Fabry's disease1
- Familial multiple polyposis syndrome1
- Fatty liver disease (MASH/NASH)1
- Female infertility1
- Frontotemporal dementia (FTD)1
- Germ cell tumor1
- Gestational diabetes1
- Graves' disease1
- Hearing loss1
- Hemolytic uremic syndrome1
- Hemophilia A1
- Hidradenitis suppurativa (HS)1
- Hypertriglyceridemia1
- Irritable bowel syndrome (IBS)1
- Long QT syndrome1
- Low back pain1
- Macular edema1
- Methamphetamine dependence1
- Neurofibromatosis1
- Neurofibromatosis type 1 (NF1)1
- Overactive bladder (OAB)1
- Palmoplantar pustulosis1
- Polycythemia vera1
- Pompe disease1
- Primary biliary cholangitis (PBC)1
- Progressive supranuclear palsy (PSP)1
- Psychotic disorder1
- Radiculopathy1
- Rotator cuff syndrome1
- Short-sightedness (myopia)1
- Sickle cell disease1
- Spasmodic torticollis1
- Thyroid cancer1
- Urethral cancer1
- Vascular dementia1
217 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 6494%
- Adults 65 and over86%
- Children and teens (under 18)21%
- Healthy volunteers7%
- Open to all sexes91%
- Women only5%
- Men only3%
45 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 1/28%
- Phase 218%
- Phase 2/34%
- Phase 330%
- Phase 44%
- No phase (device, behavioral and other studies)16%
- Not stated14%
Most active research sites
The sites recruiting for the most studies in the area.
- Oregon Health & Science UniversityPortland210 studies
- Oregon Health and Science UniversityPortland199 studies
- Providence Portland Medical CenterPortland117 studies
- Providence Saint Vincent Medical CenterPortland93 studies
- Providence Newberg Medical CenterNewberg69 studies
- Providence Willamette Falls Medical CenterOregon City68 studies
- Clackamas Radiation Oncology CenterClackamas44 studies
- OHSU Knight Cancer InstitutePortland40 studies
- PeaceHealth Southwest Medical CenterVancouver32 studies
- Providence St. Vincent Medical CenterPortland27 studies
- Providence Cancer InstitutePortland23 studies
- Oregon Health Sciences UniversityPortland19 studies
- Kaiser Permanente NorthwestPortland18 studies
- Legacy Emanuel Children's HospitalPortland18 studies
- Legacy Good Samaritan Hospital and Medical CenterPortland14 studies
Cite these figures
Free to use under CC BY 4.0. Please credit LocalTrial with a link to this page.
Source: LocalTrial, Clinical trials in the Portland area, https://www.localtrial.com/clinical-trials/oregon/portland, updated November 12, 2026.
Source: <a href="https://www.localtrial.com/clinical-trials/oregon/portland">LocalTrial, Clinical trials in the Portland 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 Portland-Vancouver-Hillsboro, OR-WA metropolitan area. Residents: 2,537,904, 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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