Obstruction Clinical Trials

131 recruitingLast updated: June 17, 2026

There are 131 actively recruiting obstruction clinical trials across 36 countries. Studies span Not Applicable, Phase 2, Phase 3, Early Phase 1, Phase 4. Top locations include New York, New York, United States, Cleveland, Ohio, United States, Chicago, Illinois, United States. Updated daily from ClinicalTrials.gov.


Obstruction Trials at a Glance

131 actively recruiting trials for obstruction are listed on ClinicalTrialsFinder across 6 cities in 36 countries. The largest study group is Not Applicable with 71 trials, with the heaviest enrollment activity in New York, Cleveland, and Chicago. Lead sponsors running obstruction studies include Northwestern University, National Taiwan University Hospital, and Chinese University of Hong Kong.

Browse obstruction trials by phase

Treatments under study

About Obstruction Clinical Trials

Looking for clinical trials for Obstruction? 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 Obstruction 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 Obstruction 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 131 trials

Recruiting
Phase 3

Fixed-dose Combination of 1000 mg Dipyrone Monohydrate + 60 mg Caffeine + 4 mg Chlorpheniramine Maleate in Improving Symptoms of the Common Cold and Flu in Adults

Nasal congestionCommon Cold/Flunasal obstruction
Brainfarma Industria Química e Farmacêutica S/A620 enrolled15 locationsNCT07626437
Recruiting
Not Applicable

Enteral Anastomosis for the Treatment of Gastric Outlet Obstruction: A Randomized Controlled Study Comparing Endoscopic Versus Surgical Gastrojejunostomy

Gastric Outlet Obstruction
Northwell Health32 enrolled4 locationsNCT05561907
Recruiting
Not Applicable

The Effect of Nasogastric Tube Placement on Complications in Patients With Small Bowel Obstruction - the SBO-TUBE Trial

small bowel obstructionIntestinal Obstruction and Ileus
University Hospital, Linkoeping1,000 enrolled3 locationsNCT07574515
Recruiting
Not Applicable

Sedation Methods in Percutaneous Transhepatic Biliary Drainage: Procedure Quality and Recovery

MalignancyFragilityCholangitis+1 more
Ankara City Hospital Bilkent98 enrolled1 locationNCT07640243
Recruiting
Early Phase 1

18F-FTHA IMAGING OF THE INTESTINAL AND CENTRAL LYMPHATIC SYSTEM

Lymphatic Obstruction
University of Pennsylvania25 enrolled1 locationNCT07645573
Recruiting
Not Applicable

Oxiblume:CoQ10 (Ralivia) Therapy for Benign Prostatic Hyperplasia:

Benign Prostate Obstruction (BPO)Benign Prostate Hypertrophy(BPH)Benign prostate enlargement
G.Gennimatas General Hospital100 enrolled1 locationNCT07638865
Recruiting
Not Applicable

A Prospective Comparative Study Evaluating the Safety and Efficacy of Transurethral Thulium Fiber Laser, Holmium Laser and Bipolar Enucleation of Large Sized Prostate

Bladder Outlet ObstructionLower Urinary Tract SymptomBenign Prostatic Hyperplasia (BPH)
Tanta University90 enrolled1 locationNCT07627178
Recruiting

Point of Care Ultrasound for the Detection of Esophageal Food Bolus

Esophageal Foreign BodyEsophageal Obstruction
WellSpan Health30 enrolled1 locationNCT06507670
Recruiting
Not Applicable

Ejaculation-Preserving Versus Standard Bipolar TUEP for BPH

Benign Prostatic HyperplasiaLower Urinary Tract SymptomsBenign Prostatic Obstruction
Beni-Suef University60 enrolled1 locationNCT07629479
Recruiting
Not Applicable

Robotic-Enabled Microsurgical Intervention for Neurodegenerative Disease

Alzheimer DiseaseLymphatic Obstruction
MMI (Medical Microinstruments, Inc.)15 enrolled2 locationsNCT07178210
Recruiting

Renal SWE as a Predictor After Pediatric Pyeloplasty for UPJO

Ureteropelvic Junction ObstructionRenal Functional Recovery
Beni-Suef University84 enrolled1 locationNCT07624019
Recruiting
Not Applicable

RECANA OUS - Recana Thrombectomy Catheter System for Venous Obstruction and Occlusion Study (RECANA-OUS-IRL)

Venous Obstruction
Intervene, Inc.20 enrolled1 locationNCT07095660
Recruiting
Not Applicable

Nasal Obstruction and Olfactory Losses

nasal obstruction
Ohio State University330 enrolled1 locationNCT05920330
Recruiting
Not Applicable

Positron Emission Tomography to Assess the Effect of Camzyos on Ischaemia in HOCM: PEACH Trial

Myocardial ischaemiaHypertrophic Obstructive Cardiomyopathy \(HOCM\)Left Ventricular Outflow Tract Obstruction
University of Manchester75 enrolled1 locationNCT07120776
Recruiting
Phase 3

PREcision MEDicine In Achalasia (PREMEDIA)

Type I AchalasiaType II AchalasiaEGJ Outflow Obstruction Without Spastic/Hypercontractile Features
Northwestern University372 enrolled13 locationsNCT07293650
Recruiting
Not Applicable

GT Metabolic Magnet System in Adults With Gastrointestinal Disorders

small bowel obstructionGastric Outlet ObstructionSuperior Mesenteric Artery Syndrome
GT Metabolic Solutions, Inc.35 enrolled1 locationNCT07317076
Recruiting

PREcision MEDicine In Achalasia (PREMEDIA) - Cohort

Type III AchalasiaEGJ Outflow Obstruction With Spastic/Hypercontractile FeaturesJackhammer Esophagus+1 more
Northwestern University200 enrolled13 locationsNCT07293689
Recruiting

Effect of Catheter Duration on Prostate Laser Enucleation Surgery Outcomes in Patients With Urinary Retention

Urinary RetentionBenign Prostate Obstruction (BPO)
Eskişehir Osmangazi University Medicine Faculty Hospital54 enrolled1 locationNCT07603011
Recruiting

NXT Post-Market Clinical Follow-up

Urinary IncontinenceUrinary Bladder, NeurogenicUrinary Bladder, Overactive+2 more
Laborie Medical Technologies Inc.180 enrolled5 locationsNCT06336304
Recruiting
Not Applicable

Exercise Prescription in Children With Hypertrophic Cardiomyopathy

Hypertrophic Cardiomyopathy Without Obstruction
Alder Hey Children's NHS Foundation Trust10 enrolled1 locationNCT07595354