TRIO Clinical Trials

253 recruitingLast updated: July 25, 2026

There are 253 actively recruiting trio clinical trials across 41 countries. Studies span Not Applicable, Phase 2, Phase 3, Phase 4, Phase 1, Early Phase 1. Top locations include Houston, Texas, United States, Paris, France, St Louis, Missouri, United States. Updated daily from ClinicalTrials.gov.


TRIO Trials at a Glance

253 actively recruiting trials for trio are listed on ClinicalTrialsFinder across 6 cities in 41 countries. The largest study group is Not Applicable with 101 trials, with the heaviest enrollment activity in Houston, Paris, and St Louis. Lead sponsors running trio studies include Monash University, Mayo Clinic, and IRCCS Azienda Ospedaliero-Universitaria di Bologna.

Treatments under study

About TRIO Clinical Trials

Looking for clinical trials for TRIO? 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 TRIO 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 TRIO 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 253 trials

Recruiting
Phase 3

Testing the Addition of Herceptin Hylecta or Phesgo to the Usual Chemotherapy for HER2 Positive Endometrial Serous Carcinoma or Carcinosarcoma

Endometrial CarcinomaEndometrial Clear Cell AdenocarcinomaEndometrial Dedifferentiated Carcinoma+5 more
National Cancer Institute (NCI)360 enrolled409 locationsNCT05256225
Recruiting
Phase 1

Cirtuvivint/Olaparib in Breast Cancer Susceptibility Gene/Homologous Recombination Deficiency Platinum Resistant Ovarian Cancer

Endometrioid Ovarian CancerPrimary Peritoneal CancerFallopian Tube Cancer
University of Colorado, Denver50 enrolled2 locationsNCT06856499
Recruiting

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

SYNGAP1-Related Intellectual DisabilityDLG4FOXP1+184 more
Simons Searchlight100,000 enrolled2 locationsNCT01238250
Recruiting

Observational Study of Women With Endometrial Cancer Who Receive the Standard Treatment for Their Disease

Endometrial CancerEndometrioid AdenocarcinomaEndometrial Cancer Stage I
Memorial Sloan Kettering Cancer Center1,715 enrolled18 locationsNCT04291612
Recruiting
Not Applicable

Pelvic Pain Electro-Acupuncture

EndometriosisPelvic Pain
St. Olavs Hospital38 enrolled1 locationNCT07305025
Recruiting
Phase 2

Evaluating the Impact of a Novel Cannabinoid Product for Endometriosis

Endometriosis
Mclean Hospital30 enrolled1 locationNCT06477406
Recruiting

Safety, Performance, and Clinical Benefit of Pacing the Left Bundle Branch Area - Post-Market Clinical Follow-up

Sinus Node DysfunctionAtrioventricular BlockBundle-Branch Block+1 more
Boston Scientific Corporation140 enrolled13 locationsNCT07209852
Recruiting

BIO|STREAM.CSP CLS

Atrioventricular BlockSinus Node Disease
Biotronik SE & Co. KG150 enrolled12 locationsNCT07608822
Recruiting
Not Applicable

Impact of Surgery for Deep Posterior Endometriosis on Ovarian Reserve (ENDORO)

EndometriosisOvarian Reserve
GCS Ramsay Santé pour l'Enseignement et la Recherche100 enrolled1 locationNCT07469007
Recruiting

Biomarkers for Endometriosis

Endometriosis
Trio Fertility100 enrolled1 locationNCT07713797
Recruiting

Pelvic Floor Muscle Function and Endometriosis-Related Pelvic Pain

EndometriosisChronic pelvic painPelvic Pain Associated With Endometriosis or Adenomyosis
University of Pecs100 enrolled1 locationNCT07713108
Recruiting
Not Applicable

Histological Assessment of Tissue Penetration Depth of Argon Beam Coagulation in Ovarian Endometriomas

EndometriosisOvarian Endometrioma
Insel Gruppe AG, University Hospital Bern50 enrolled1 locationNCT07711743
Recruiting
Phase 2

Testing Nivolumab With or Without Ipilimumab in Deficient Mismatch Repair System (dMMR) Recurrent Endometrial Carcinoma

Recurrent Endometrial CarcinomaEndometrial AdenocarcinomaEndometrial Clear Cell Adenocarcinoma+6 more
National Cancer Institute (NCI)81 enrolled137 locationsNCT05112601
Recruiting

Endometriosis and Migraine

MigraineEndometriosis
Washington University School of Medicine120 enrolled1 locationNCT06785129
Recruiting

Endometriosis Pain

EndometriosisPelvic Pain
Washington University School of Medicine120 enrolled1 locationNCT06101303
Recruiting
Not Applicable

Effect of Alcohol Sclerotherapy on Pelvic Pain and Quality of Life in Women With Ovarian Endometriosis

EndometriomaQuality of LifeUltrasound Therapy; Complications+1 more
Hospital Universitari de Bellvitge288 enrolled28 locationsNCT06955221
Recruiting
Phase 1

Testing Different Amounts of the Combination of Drugs M1774 and ZEN-3694 for the Treatment of Recurrent Ovarian and Endometrial Cancer

Recurrent Endometrial CarcinomaRecurrent Ovarian High Grade Serous AdenocarcinomaRecurrent Ovarian Clear Cell Adenocarcinoma+6 more
National Cancer Institute (NCI)65 enrolled14 locationsNCT05950464
Recruiting

Expression of Target in Endometriotic Lesions

Endometriosis
Beijing Tsinghua Chang Gung Hospital40 enrolled1 locationNCT07693283
Recruiting
Phase 3

Efficacy & Safety of Olvi-Vec and Platinum-doublet + Bevacizumab Compared to Physician's Choice of Chemotherapy and Bevacizumab in Platinum-Resistant/Refractory Ovarian Cancer (PRROC) (OnPrime, GOG-3076)

Endometrioid Ovarian CancerPrimary Peritoneal CancerFallopian Tube Cancer+4 more
Genelux Corporation186 enrolled32 locationsNCT05281471
Recruiting
Phase 4

Ultra-Long GnRH-a Pretreatment for FET Outcomes in Patients With Deep Infiltrating Endometriosis

InfertilityDeep Infiltrating Endometriosis (DIE)
Li-jun Ding120 enrolled1 locationNCT07696351