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ClinicalTrials.gov 24,857 recruiting now free trial finder

Find a clinical trial that's recruiting now

Search 24,857 actively recruiting US clinical trials by condition, drug, or state, each entry links straight to its NIH ClinicalTrials.gov record so you can check eligibility and contact the study team.

24,857
trials recruiting now
14%
of all US trials open to enrollment
52
states with recruiting sites

A trial is listed as recruiting when its sponsor has marked it open to new participants on the public registry. Type a condition or drug name (for example, "breast cancer" or "pembrolizumab") to narrow the list, and add a state to find studies with a site near you. Results are ordered with the most relevant recruiting studies first; each card shows the study phase and enrollment target, and opens the full record, including eligibility criteria and contact details, on ClinicalTrials.gov.

Showing the 40 largest recruiting trials by target enrollment in Arizona. Use the search field to focus on a condition or drug.

Recruiting 5,000,000 participants

The Pediatric Anesthesia Quality Improvement Project

The Society for Pediatric Anesthesia

NCT00674388

Recruiting 500,000 participants

Alzheimer's Prevention Registry: A Program to Accelerate Enrollment Into Studies

Banner Health

NCT02022943

Recruiting 150,000 participants

Improving Safety and Quality of Tracheal Intubation Practice in Pediatric ICUs

Children's Hospital of Philadelphia

NCT02493478

Recruiting 100,000 participants

Family Investigation of Nephropathy and Diabetes (F.I.N.D.)

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NCT00342927

Recruiting 100,000 participants

US National OCS Heart Perfusion (OHP) Registry

TransMedics

NCT05915299

Recruiting 100,000 participants

Product Surveillance Registry

Medtronic

NCT01524276

Recruiting 100,000 participants

US National OCS Liver Perfusion (OLP) Registry

TransMedics

NCT05940857

Recruiting 100,000 participants

Caris Biorepository Research Protocol

Caris Science

NCT01499394

Recruiting 100,000 participants

Epilepsy Learning Healthcare System (ELHS)

Epilepsy Foundation of America

NCT06265103

Recruiting 99,999 participants

A Multicenter Access and Distribution Protocol for Unlicensed Cryopreserved Cord Blood Units (CBUs)

Center for International Blood and Marrow Transplant Research

NCT01351545

Recruiting 75,000 participants

Project: Every Child for Younger Patients With Cancer

Children's Oncology Group

NCT02402244

Recruiting 50,000 participants

SYNERGY-AI: Artificial Intelligence Based Precision Oncology Clinical Trial Matching and Registry

Massive Bio

NCT03452774

Recruiting 40,000 participants

Registry Study for Radiation Therapy Outcomes

Proton Collaborative Group

NCT01255748

Recruiting 35,000 participants

Enroll -HD: A Prospective Registry Study in a Global Huntington's Disease Cohort

CHDI Foundation

NCT01574053

Recruiting Phase 3 32,000 participants

A Study to Learn About a Clostridioides Difficile Vaccine in People 65 Years of Age and Older

Pfizer

NCT07282665

Recruiting 30,000 participants

Pancreatic Cancer Detection Consortium (PCDC) Prospective Cohorts

Mayo Clinic

NCT06271291

Recruiting 30,000 participants

MammaPrint, BluePrint, and Full-genome Data Linked With Clinical Data to Evaluate New Gene EXpression Profiles

Agendia

NCT03053193

Recruiting Phase 4 30,000 participants

A Study to Evaluate the Efficacy and Safety of mRNA-1283 and mRNA-1273 in Participants 50 to 64 Years of Age Without High-Risk Conditions for Severe Coronavirus Disease 2019 (COVID-19)

ModernaTX

NCT07266558

Recruiting 27,000 participants

COVID-19 Risk Assessment for Hospitalization Outcomes and Epidemiology Efficacy

Aventyn

NCT04678193

Recruiting Phase 3 25,500 participants

A Study to Learn About a COVID-19 Vaccine in Healthy Adults 50 Through 64 Years of Age

BioNTech SE

NCT07300839

Recruiting 25,000 participants

Parkinson's Foundation PD GENEration Genetic Registry

Parkinson's Foundation

NCT04994015

Recruiting Phase 4 20,000 participants

Pragmatic Evaluation of Events And Benefits of Lipid-lowering in Older Adults

Duke University

NCT04262206

Recruiting 20,000 participants

Observational Study of Pediatric Rheumatic Diseases: The CARRA Registry

Duke University

NCT02418442

Recruiting 20,000 participants

Product Performance Report: Evaluate Long-term Reliability & Performance of Medtronic Marketed Cardiac Therapy Products

Medtronic

NCT00271180

Recruiting 20,000 participants

Collecting Medical Information and Tissue Samples From Patients With Pancreatic Cancer or Other Pancreatic Disorders

Mayo Clinic

NCT00830557

Recruiting 20,000 participants

Pancreatic Cancer Early Detection Consortium

Arbor Research Collaborative for Health

NCT04970056

Recruiting Phase 3 15,100 participants

A Phase III Study of AZD0780 on Major Adverse CV Events in Patients With a History of ASCVD Events or at High Risk for a First Event

AstraZeneca

NCT07000357

Recruiting 15,000 participants

A Longitudinal Observational Study of Patients With Nonalcoholic Steatohepatitis (NASH) and Related Conditions Across the Entire Spectrum of Nonalcoholic Fatty Liver Disease (NAFLD)

Target PharmaSolutions

NCT02815891

Recruiting 15,000 participants

Patient Retrospective Outcomes (PRO)

Boston Scientific Corporation

NCT01550575

Recruiting 15,000 participants

Real-world Experience of Catheter Ablation for the Treatment of Paroxysmal and Persistent Atrial Fibrillation

Heart Rhythm Clinical and Research Solutions

NCT04088071

Recruiting Phase 3 15,000 participants

A Study of Milvexian in Participants After an Acute Ischemic Stroke or High-Risk Transient Ischemic Attack- LIBREXIA-STROKE

Janssen Research & Development

NCT05702034

Recruiting Phase 3 13,000 participants

Screening Study to Determine Individuals With Potential Trial Eligibility for Alzheimer's Disease Studies

Hoffmann-La Roche

NCT07177352

Recruiting Phase 3 12,800 participants

Evaluating the Impact of Maridebart Cafraglutide on Cardiovascular Outcomes in Participants With Atherosclerotic Cardiovascular Disease and Overweight or Obesity

Amgen

NCT07037433

Recruiting 12,000 participants

International Collaborative Gaucher Group (ICGG) Gaucher Disease Registry & Pregnancy Sub-registry

Genzyme, a Sanofi Company

NCT00358943

Recruiting Phase 3 11,800 participants

EASi-PROTKT™ - A Study to Test Vicadrostat (BI 690517) Taken Together With Empagliflozin in People With Type 2 Diabetes, High Blood Pressure, and Cardiovascular Disease

Boehringer Ingelheim

NCT07064473

Recruiting Phase 3 11,300 participants

Phase III Study Investigating Heart Failure and Cardiovascular Death With Baxdrostat in Combination With Dapagliflozin

AstraZeneca

NCT06677060

Recruiting Phase 3 11,000 participants

Zilebesiran in Patients With Hypertension Not Adequately Controlled and With Either Established Cardiovascular Disease or High Risk for Cardiovascular Disease

Alnylam Pharmaceuticals

NCT07181109

Recruiting Phase 3 11,000 participants

OCEAN(a)-PreEvent - Olpasiran Trials of Cardiovascular Events And LipoproteiN(a) Reduction to Prevent First Major Cardiovascular Events

Amgen

NCT07136012

Recruiting Phase 3 11,000 participants

EASi-KIDNEY™ (The Studies of Heart & Kidney Protection With BI 690517 in Combination With Empagliflozin)

Boehringer Ingelheim

NCT06531824

Recruiting Phase 3 10,450 participants

Assessing the Impact of Muvalaplin on Major Cardiovascular Events in Adults With Elevated Lipoprotein(a)

Eli Lilly and Company

NCT07157774

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Recruiting status is reported by each study's sponsor and mirrored from the public registry. Always confirm current eligibility and status on ClinicalTrials.gov before contacting a study.

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