Action Clinical Trials

597 recruitingLast updated: July 25, 2026

There are 597 actively recruiting action clinical trials across 74 countries. Studies span Not Applicable, Phase 2, Phase 4, Phase 1, Phase 3, Early Phase 1. Top locations include Boston, Massachusetts, United States, New York, New York, United States, Dallas, Texas, United States. Updated daily from ClinicalTrials.gov.


Action Trials at a Glance

597 actively recruiting trials for action are listed on ClinicalTrialsFinder across 6 cities in 74 countries. The largest study group is Not Applicable with 253 trials, with the heaviest enrollment activity in Boston, New York, and Dallas. Lead sponsors running action studies include Mayo Clinic, Massachusetts General Hospital, and Johns Hopkins University.

Treatments under study

About Action Clinical Trials

Looking for clinical trials for Action? There are currently 1 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Action trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Action clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 597 trials

Recruiting
Not Applicable

Ketogenic Diet vs Mixed Diet in Patients With Heart Failure

Heart Failure With Preserved Ejection Fraction
Ohio State University90 enrolled1 locationNCT06081543
Recruiting
Not Applicable

Regional Anesthesia in TKA: Impact on Postoperative Joint Motion and Patient Satisfaction

Patient SatisfactionPostoperative PainRegional Anesthesia+2 more
Konya City Hospital30 enrolled1 locationNCT07124494
Recruiting
Not Applicable

Cannabidiol (CBD) and Stress Response: Psychobiological Mechanisms

StressAcute Stress ReactionCBD+1 more
University of Minnesota125 enrolled1 locationNCT07069478
Recruiting
Phase 2

A Study to Evaluate LY3537021 for the Treatment of Nausea and Vomiting Caused by Chemotherapy in Adults With Cancer

NeoplasmsVomitingNausea+1 more
Eli Lilly and Company204 enrolled67 locationsNCT07169851
Recruiting

Natural History of Depression, Bipolar Disorder and Suicide Risk

Molecular Mechanisms of Pharmacological ActionDepressive SymptomsSuicide+18 more
National Institute of Mental Health (NIMH)500 enrolled1 locationNCT06462196
Recruiting
Phase 2

Lumacaftor Yields Reversal of Impaired Cerebral Blood Flow in Heart Failure Patients

Heart Failure With Reduced Ejection Fraction
Qanatpharma AG60 enrolled2 locationsNCT07695090
Recruiting
Phase 4

Oral Contraceptive Pill (OCP) Pharmacogenomics

ContraceptionPharmacogenomic Drug Interaction
Yale University700 enrolled2 locationsNCT06334315
Recruiting
Phase 3

Study With Omecamtiv Mecarbil (CK-1827452) to Treat Chronic Heart Failure With Severely Reduced Ejection Fraction

Heart FailureHeart Failure With Reduced Ejection Fraction
Cytokinetics1,800 enrolled196 locationsNCT06736574
Recruiting
Not Applicable

Implementation and Interaction of Clinician And Patient-facing Tools Aiming to Intensify Neurohormonal Medicines for Heart Failure

Heart Failure With Reduced Ejection Fraction
University of Colorado, Denver2,200 enrolled5 locationsNCT06526988
Recruiting
Phase 4

LDL-C Optimization Using Inclisiran in Patients in Which Drug-Drug Interactions Limit LDL Lowering

Cardiometabolic SyndromePrimary PreventionLDL-Cholersterol Lowering+1 more
University of California, San Diego100 enrolled1 locationNCT06865885
Recruiting
Not Applicable

STEPS - Stress Training and Engagement Via Phone-Based Systems

Psychological DistressLonelinessMindfulness Skills+2 more
Equa Health300 enrolled1 locationNCT07639697
Recruiting
Phase 2

Investigation of the Antidepressant Effects of (2R,6R)-HNK, an Enhancer of Synaptic Glutamate Release, in Treatment-Resistant Depression

DepressionDepressive DisorderMolecular Mechanisms of Pharmacological Action+10 more
National Institute of Mental Health (NIMH)50 enrolled1 locationNCT06511908
Recruiting
Phase 2

EXercise and Activin Inhibition to Modulate InflammatioN Effects on Heart Failure and Cognition (EXAMINE-HFC)

Heart Failure With Preserved Ejection Fraction
Massachusetts General Hospital48 enrolled1 locationNCT07202000
Recruiting

Endometrial Peristalsis and Pregnancy Outcomes in Hormone Replacement Therapy (HRT) - Frozen Embryo Transfer (FET) Cycles

InfertilityFrozen Embryo Transfer (FET)Endometrial Peristalsis+4 more
Mỹ Đức Hospital442 enrolled1 locationNCT07675213
Recruiting

Biomarkers for Left Ventricular Reverse Remodeling in Heart Failure (REVERT-HF)

Heart FailureHeart Failure and Reduced Ejection Fraction
Ruijin Hospital Luwan Branch1,740 enrolled1 locationNCT07701876
Recruiting
Phase 1

Safety and PK of Ceftibuten-ledaborbactam Etzadroxil Fixed-dose Combination

Healthy VolunteerSafetyPharmacokinetics+2 more
Basilea Pharmaceutica96 enrolled1 locationNCT06733675
Recruiting
Phase 2

A Study of 68Ga-Fibroblast Activation Protein Inhibitor (FAPI) Positron Emission Tomography in Heart Failure

Heart Failure With Preserved Ejection Fraction
Mayo Clinic35 enrolled1 locationNCT07083011
Recruiting
Not Applicable

Effect of Tegileridine Versus Sufentanil as Analgesic Components on Opioid-Induced Cough During Anesthesia Induction

General Anesthetic Drug Adverse Reaction
The First People's Hospital of Lianyungang190 enrolled1 locationNCT07323043
Recruiting

DL Models Predicting Cycloplegic Refractive Error Based on Non-Cycloplegic Parameters in Myopic Adults

Cycloplegic refractionAccommodationRefractive errors
Second Affiliated Hospital of Nanchang University2,500 enrolled1 locationNCT07690813
Recruiting
Phase 1

A Safety and Tolerability Study of HJB647 in Heart Failure Participants With Reduced Ejection Fraction

Heart Failure With Reduced Ejection Fraction
Novartis Pharmaceuticals12 enrolled4 locationsNCT07465653