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.

  1. Oregon Health & Science UniversityPortland210 studies
  2. Oregon Health and Science UniversityPortland199 studies
  3. Providence Portland Medical CenterPortland117 studies
  4. Providence Saint Vincent Medical CenterPortland93 studies
  5. Providence Newberg Medical CenterNewberg69 studies
  6. Providence Willamette Falls Medical CenterOregon City68 studies
  7. Clackamas Radiation Oncology CenterClackamas44 studies
  8. OHSU Knight Cancer InstitutePortland40 studies
  9. PeaceHealth Southwest Medical CenterVancouver32 studies
  10. Providence St. Vincent Medical CenterPortland27 studies
  11. Providence Cancer InstitutePortland23 studies
  12. Oregon Health Sciences UniversityPortland19 studies
  13. Kaiser Permanente NorthwestPortland18 studies
  14. Legacy Emanuel Children's HospitalPortland18 studies
  15. 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.

As text

Source: LocalTrial, Clinical trials in the Portland area, https://www.localtrial.com/clinical-trials/oregon/portland, updated November 12, 2026.

With the link, for a web page

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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