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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 Alabama. Use the search field to focus on a condition or drug.

Recruiting 950,000 participants

Maternal Newborn Health Registry

NICHD Global Network for Women's and Children's Health

NCT01073475

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

Product Surveillance Registry

Medtronic

NCT01524276

Recruiting 100,000 participants

Protocol for Collecting, Banking and Distributing Human Tissue Samples: St. Jude Children's Research Hospital Tissue Resources Core Facility

St. Jude Children's Research Hospital

NCT01354002

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 NA 100,000 participants

Women Informed to Screen Depending on Measures of Risk (Wisdom Study)

University of California, San Francisco

NCT02620852

Recruiting 100,000 participants

International Weight Control Registry

Tufts University

NCT04907396

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 80,000 participants

Generic Database of Very Low Birth Weight Infants

NICHD Neonatal Research Network

NCT00063063

Recruiting 75,000 participants

Project: Every Child for Younger Patients With Cancer

Children's Oncology Group

NCT02402244

Recruiting 68,000 participants

Follow-up Visit of High Risk Infants

NICHD Neonatal Research Network

NCT00009633

Recruiting 50,000 participants

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

Massive Bio

NCT03452774

Recruiting 50,000 participants

Childhood Cancer Survivor Study

St. Jude Children's Research Hospital

NCT01120353

Recruiting 40,000 participants

Stroke Thrombectomy and Aneurysm Registry

Medical University of South Carolina

NCT04994756

Recruiting NA 36,503 participants

Supraglottic Airway for Resuscitation Trial

Children's Hospital of Philadelphia

NCT07150923

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

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 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

Clinical and Genetic Evaluation of Individuals With Undiagnosed Disorders Through the Undiagnosed Diseases Network

National Human Genome Research Institute (NHGRI)

NCT02450851

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

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

Heart Rhythm Clinical and Research Solutions

NCT04088071

Recruiting NA 14,400 participants

The Patient and Family Centered I-PASS LISTEN Study: Language, Inclusion, Safety, and Teamwork for Equity Now

Boston Children's Hospital

NCT05591066

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 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 4 10,742 participants

Effectiveness of Two Aspirin Doses for Prevention of Hypertensive Disorders of Pregnancy: ASPIRIN TRIAL

Ohio State University

NCT06468202

Recruiting 10,000 participants

Collection and Distribution of Biospecimens for Novel Research Uses

iSpecimen

NCT03848962

Recruiting 10,000 participants

Comprehensive HHT Outcomes Registry of the United States (CHORUS)

Cure HHT

NCT06259292

Recruiting 10,000 participants

Tracking Results of Ablations to Combat AF Registry Generation 2

AtriCure

NCT05111015

Recruiting Phase 2 10,000 participants

Lung-MAP: A Master Screening Protocol for Previously-Treated Non-Small Cell Lung Cancer

SWOG Cancer Research Network

NCT03851445

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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