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Clinical trials in the Toledo area

189 studies are recruiting volunteers at 67 research sites in the Toledo, OH area.

Sites in Toledo, Maumee, Perrysburg, Sylvania, Oregon, Bowling Green and 1 more towns.

#80 in the US for recruiting studies#5 in Ohio#60 in the US per resident

Studies recruiting
189
Research sites
67
Conditions studied
79
Studies per 100,000 residents
31.4

Conditions being studied

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

  • Lung cancer24 studies
  • Stroke14 studies
  • Breast cancer13 studies
  • Colorectal cancer (bowel cancer)12 studies
  • Ovarian cancer12 studies
  • Head and neck cancer11 studies
  • Leukemia10 studies
  • Uterine cancer10 studies
  • Pancreatic cancer9 studies
  • Endometrial cancer8 studies
  • Melanoma8 studies
  • Neuroendocrine tumor8 studies
  • Skin cancer8 studies
  • Heart failure7 studies
  • Non-Hodgkin's lymphoma7 studies
All 79 conditions
  • Lung cancer24
  • Stroke14
  • Breast cancer13
  • Colorectal cancer (bowel cancer)12
  • Ovarian cancer12
  • Head and neck cancer11
  • Leukemia10
  • Uterine cancer10
  • Pancreatic cancer9
  • Endometrial cancer8
  • Melanoma8
  • Neuroendocrine tumor8
  • Skin cancer8
  • Heart failure7
  • Non-Hodgkin's lymphoma7
  • Prostate cancer7
  • Asthma6
  • Esophageal cancer6
  • Fallopian tube cancer6
  • Kidney cancer6
  • Bladder cancer5
  • Type 2 diabetes5
  • Atrial fibrillation (AF)4
  • Sarcoma of soft tissue4
  • Cardiovascular disease3
  • Cervical cancer3
  • Chronic kidney disease (CKD)3
  • Gastric cancer (stomach cancer)3
  • Anemia2
  • Biliary tract cancer2
  • Brain cancer2
  • Chronic obstructive pulmonary disease (COPD)2
  • Cystic fibrosis2
  • Gastrointestinal stromal tumor2
  • Hereditary angioedema2
  • High blood pressure (hypertension)2
  • Inflammatory bowel disease (IBD)2
  • Ischemic heart disease (IHD)2
  • Liver cancer2
  • Liver disease2
  • Myelodysplastic syndrome (MDS)2
  • Neuroblastoma2
  • Overweight and obesity2
  • Rhabdomyosarcoma2
  • Vulvar cancer2
  • Abdominal aortic aneurysm1
  • Abdominal cancer1
  • Acute coronary syndrome1
  • Anal cancer1
  • Chronic skin ulcer1
  • COVID-191
  • Crohn's disease1
  • Depressive disorder1
  • Down syndrome1
  • Dry eye syndrome1
  • Gallbladder cancer1
  • Germ cell tumor1
  • Hemophilia A1
  • Hemophilia B1
  • Hodgkin's lymphoma1
  • Hypercholesterolemia1
  • Influenza (flu)1
  • Intellectual disability1
  • Interstitial lung disease1
  • Multiple sclerosis (MS)1
  • Myelofibrosis1
  • Parkinson's disease (PD)1
  • Peripheral nerve disease1
  • Peritoneal cancer1
  • Post-transplant lymphoproliferative disorder1
  • Rheumatoid arthritis1
  • Sickle cell disease1
  • Sjogren's syndrome1
  • Testicular cancer1
  • Thyroid cancer1
  • Ulcerative colitis (UC)1
  • Ureteral cancer1
  • Urethral cancer1
  • Vaginal cancer1

39 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 6497%
  • Adults 65 and over86%
  • Children and teens (under 18)22%
  • Healthy volunteers2%
  • Open to all sexes93%
  • Women only5%
  • Men only3%

4 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.

  • Phase 13%
  • Phase 1/25%
  • Phase 220%
  • Phase 2/35%
  • Phase 341%
  • Phase 42%
  • No phase (device, behavioral and other studies)11%
  • Not stated14%

Most active research sites

The sites recruiting for the most studies in the area.

  1. ProMedica Toledo Hospital/Russell J Ebeid Children's HospitalToledo53 studies
  2. ProMedica Flower HospitalSylvania36 studies
  3. Taylor Cancer Research CenterMaumee23 studies
  4. Mercy Health - Perrysburg HospitalPerrysburg18 studies
  5. Mercy Health - Saint Anne HospitalToledo18 studies
  6. Mercy Health - St. Vincent Medical CenterToledo12 studies
  7. Mercy Health - Saint Vincent HospitalToledo9 studies
  8. Mercy Health Sylvania Radiation Oncology CenterToledo7 studies
  9. The University of Toledo Medical CenterToledo7 studies
  10. Advanced Medical ResearchMaumee5 studies
  11. Toledo Clinic Cancer CenterToledo4 studies
  12. Mercy Health Perrysburg Cancer CenterPerrysburg3 studies
  13. Toledo Children's HospitalToledo3 studies
  14. Toledo Institute of Clinical Research Inc.Toledo3 studies
  15. Saint Vincent Mercy Medical CenterToledo2 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 Toledo area, https://www.localtrial.com/clinical-trials/ohio/toledo, updated November 12, 2026.

With the link, for a web page

Source: <a href="https://www.localtrial.com/clinical-trials/ohio/toledo">LocalTrial, Clinical trials in the Toledo 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 Toledo, OH metropolitan area. Residents: 601,396, 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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