Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
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.
Popular conditions
Showing the 40 largest recruiting trials by target enrollment in California. Use the search field to focus on a condition or drug.
IRIS Registry: Intelligent Research in Sight Registry
American Academy of Ophthalmology
NCT02485847
The Pediatric Anesthesia Quality Improvement Project
The Society for Pediatric Anesthesia
NCT00674388
Fluad vs. Fluzone High-Dose Vaccine Effectiveness Among Adults ≥65 Years
Kaiser Permanente
NCT06029933
Parkinson Progression Marker Initiative Online (PPMI Online)
Michael J. Fox Foundation for Parkinson's Research
NCT05065060
Data Collection and Evaluation of OptiBP Under Investigational Use
Biospectal
NCT06017687
A Trial Comparing Screening Mammography With and Without Assistance From Artificial Intelligence for Breast Cancer Detection and Recall Rates in Adult Patients
Jonsson Comprehensive Cancer Center
NCT06934239
Treating Genital Herpes Infection to Reduce Racial Disparities in the Risk of Severe Maternal Morbidity
Kaiser Permanente
NCT05429346
Provider Recommendation and HPV Vaccination
Kaiser Permanente
NCT05365048
Arrival Time Implementation
University of California, Los Angeles
NCT07314697
Alzheimer Prevention Trials (APT) Webstudy
University of Southern California
NCT03638583
TabCAT Brain Health Assessment in Primary Care
University of California, San Francisco
NCT06090578
Improving Safety and Quality of Tracheal Intubation Practice in Pediatric ICUs
Children's Hospital of Philadelphia
NCT02493478
Surveillance Colonoscopy in Older Adults: The SurvOlderAdults Study
VA Office of Research and Development
NCT05994482
Implementing Scalable, PAtient-centered, Team-based, Technology-enabled Care for Adults With Type 2 Diabetes (iPATH)
Stanford University
NCT06251323
Rady Children's Institute Genomic Biorepository
Rady Pediatric Genomics & Systems Medicine Institute
NCT02917460
The Long COVID-19 Wearable Device Study
Scripps Translational Science Institute
NCT05741112
Research Framework Exploring Sleep Health
Scripps Translational Science Institute
NCT05197738
US National OCS Heart Perfusion (OHP) Registry
TransMedics
NCT05915299
Product Surveillance Registry
Medtronic
NCT01524276
The DETECT(Digital Engagement & Tracking for Early Control, & Treatment) Study
Scripps Translational Science Institute
NCT04336020
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
US National OCS Liver Perfusion (OLP) Registry
TransMedics
NCT05940857
Epilepsy Learning Healthcare System (ELHS)
Epilepsy Foundation of America
NCT06265103
Women Informed to Screen Depending on Measures of Risk (Wisdom Study)
University of California, San Francisco
NCT02620852
MyGeneRank: A Digital Platform for Next-Generation Genetic Studies
Scripps Translational Science Institute
NCT03277365
POWERMOM, A Healthy Pregnancy Research Community
Scripps Translational Science Institute
NCT03085875
A Multicenter Access and Distribution Protocol for Unlicensed Cryopreserved Cord Blood Units (CBUs)
Center for International Blood and Marrow Transplant Research
NCT01351545
Building Resilience at Schools: Emotional and Biological Assessment and Treatment of Traumatic Stress
Stanford University
NCT05701111
Generic Database of Very Low Birth Weight Infants
NICHD Neonatal Research Network
NCT00063063
TrialNet Pathway to Prevention of T1D
University of South Florida
NCT00097292
Project: Every Child for Younger Patients With Cancer
Children's Oncology Group
NCT02402244
Follow-up Visit of High Risk Infants
NICHD Neonatal Research Network
NCT00009633
Direct-to-patient Teledermatology and Computer-assisted Diagnosis
VA Office of Research and Development
NCT05128006
Village-Integrated Eye Worker Trial II
University of California, San Francisco
NCT03752840
Stroke Recovery Initiative - Registry for Stroke Research Studies
University of California, San Francisco
NCT03318432
Galleri® in the Medicare Population.
GRAIL
NCT05673018
A DirEct to PatieNt Study in Chronic Pain
Boston Scientific Corporation
NCT05515341
SYNERGY-AI: Artificial Intelligence Based Precision Oncology Clinical Trial Matching and Registry
Massive Bio
NCT03452774
Childhood Cancer Survivor Study
St. Jude Children's Research Hospital
NCT01120353
Clean Trial - Chlorination to Reduce Enteric and Antibiotic Resistant Infections in Neonates
University of California, Berkeley
NCT06824350
Read our methodology - how recruiting status is sourced and refreshed from the public registry.
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.