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

Recruiting NA 10,000,000 participants

The Effects of Medicaid Policy Interventions on Racial Equity in Severe Maternal Morbidity

University of Pittsburgh

NCT05678699

Recruiting 2,000,000 participants

Helix Research Network

Helix

NCT06057181

Recruiting 950,000 participants

Maternal Newborn Health Registry

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

NCT01073475

Recruiting 300,000 participants

Safe and Explainable AI

Abramson Cancer Center at Penn Medicine

NCT06694181

Recruiting 280,000 participants

Reduction of Adverse Drug Events and Readmissions

ClinLogic

NCT02738047

Recruiting 156,000 participants

Retrospective Analyses of TrakStar Database

Neuronetics

NCT06917339

Recruiting 105,000 participants

CRICKET: Critical Events in Anaesthetised Kids Undergoing Tracheal Intubation

Thomas Riva

NCT05804188

Recruiting 100,000 participants

US National OCS Liver Perfusion (OLP) Registry

TransMedics

NCT05940857

Recruiting 100,000 participants

Online Study of People Who Have Genetic Changes and Features of Autism: Simons Searchlight

Simons Searchlight

NCT01238250

Recruiting 100,000 participants

Epilepsy Learning Healthcare System (ELHS)

Epilepsy Foundation of America

NCT06265103

Recruiting 75,000 participants

TrialNet Pathway to Prevention of T1D

University of South Florida

NCT00097292

Recruiting NA 63,000 participants

Screen Smart: Using Digital Health to Improve HIV Screening and Prevention

Children's Hospital Medical Center, Cincinnati

NCT06003192

Recruiting NA 52,500 participants

Reducing Empiric VAncomycin Use in Pediatric Suspected Sepsis

Children's Hospital of Philadelphia

NCT05975671

Recruiting 50,000 participants

RSSearch Patient Registry-Long Term Study of Use of SRS/SBRT

The Radiosurgery Society

NCT01885299

Recruiting 50,000 participants

The KidneyCARE (Community Access to Research Equity) Study

Tufts Medical Center

NCT05497518

Recruiting NA 37,122 participants

Addressing Vaccine Acceptance in Carceral Settings Through Community Engagement

Yale University

NCT05796505

Recruiting NA 35,000 participants

iLookOut for Child Abuse -Online Learning Module for Early Childcare Providers

Milton S. Hershey Medical Center

NCT02225301

Recruiting 30,000 participants

COVID-19 Vaccines Safety Tracking (CoVaST)

Masaryk University

NCT04834869

Recruiting 30,000 participants

Pancreatic Cancer Detection Consortium (PCDC) Prospective Cohorts

Mayo Clinic

NCT06271291

Recruiting 22,222 participants

Development and Testing of a Pediatric Cervical Spine Injury Risk Assessment Tool

Julie Leonard

NCT05049330

Recruiting 20,000 participants

Adolescent Outcomes of Post-operative Opioid EXposure

Sharon Levy

NCT06350409

Recruiting 20,000 participants

A Prospective Registry to Enable Collection of Standardized Routine Care Oncology Patient Data

N-Power Medicine

NCT06877884

Recruiting Phase 3 20,000 participants

Randomized, Embedded, Multifactorial Adaptive Platform Trial for Community- Acquired Pneumonia

UMC Utrecht

NCT02735707

Recruiting NA 18,000 participants

Psoriatic Arthritis D2P Screening

Jessica Walsh

NCT04110522

Recruiting NA 15,732 participants

Diabetes Clinical Decision Support

Milton S. Hershey Medical Center

NCT05447806

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 14,000 participants

Multi-Center Registry for Peripheral Arterial Disease Interventions and Outcomes

Baylor Research Institute

NCT01904851

Recruiting NA 13,000 participants

Trajectories of Recovery After Intravenous Propofol Versus Inhaled VolatilE Anesthesia Trial

Washington University School of Medicine

NCT05991453

Recruiting NA 12,990 participants

CMSL Ambulatory Sensitive Condition Nudge Study 2

Geisinger Clinic

NCT07028398

Recruiting 12,000 participants

Retrospective Analyses of the Greenbrook Database Evaluating Mental Health Treatments

Neuronetics

NCT06997549

Recruiting 12,000 participants

The Myelin Disorders Biorepository Project

Children's Hospital of Philadelphia

NCT03047369

Recruiting NA 12,000 participants

iLookOut Micro-learning to Improve Knowledge Retention

Milton S. Hershey Medical Center

NCT06273618

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

Comprehensive HHT Outcomes Registry of the United States (CHORUS)

Cure HHT

NCT06259292

Recruiting NA 10,000 participants

A Partnered Evaluation to Improve the Identification and Management of Functional Impairment and Frailty Among Older Veterans in Primary Care Settings

VA Office of Research and Development

NCT06404970

Recruiting 10,000 participants

Outcomes and Health Care Resource Utilization in Pediatric Congenital Heart Disease Patients Undergoing Non-Cardiac Procedures

Boston Children's Hospital

NCT04604418

Recruiting 10,000 participants

Innovations in Genicular Outcomes Registry

Pacira Pharmaceuticals

NCT05495334

Recruiting 10,000 participants

Pancreatic Adenocarcinoma Gene Environment Risk Study

University of Pittsburgh

NCT00912717

Recruiting 10,000 participants

Late Onset Alzheimer's Disease

Columbia University

NCT05010603

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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