Block Clinical Trials

308 recruitingLast updated: July 25, 2026

There are 308 actively recruiting block clinical trials across 50 countries. Studies span Not Applicable, Phase 4, Phase 2, Phase 3, Phase 1, Early Phase 1. Top locations include Cairo, Egypt, Tanta, El-Gharbia, Egypt, New York, New York, United States. Updated daily from ClinicalTrials.gov.


Block Trials at a Glance

308 actively recruiting trials for block are listed on ClinicalTrialsFinder across 6 cities in 50 countries. The largest study group is Not Applicable with 207 trials, with the heaviest enrollment activity in Cairo, Tanta, and New York. Lead sponsors running block studies include Tanta University, Cairo University, and Ankara Etlik City Hospital.

Treatments under study

About Block Clinical Trials

Looking for clinical trials for Block? 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 Block 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 Block 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 308 trials

Recruiting

Left Bundle Branch Area Mapping for Conduction System Pacing

Left Bundle-Branch BlockPacemaker DDD
Steward St. Elizabeth's Medical Center of Boston, Inc.30 enrolled1 locationNCT05884359
Recruiting

BIO|STREAM.CSP CLS

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

Transversus Thoracic Muscle Plane Block Versus Pectointercostal Fascial Block for Enhanced Recovery After Cardiac Surgery

Cardiac SurgeryTransversus Thoracic Muscle Plane BlockPecto-intercostal Fascial Block+1 more
Assiut University90 enrolled1 locationNCT07417462
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
Not Applicable

Effect of Preoperative Erector Spinae Plane Block on Recovery Quality, Time to Return to Daily Activities, and Postoperative Pain Scores in Inguinal Hernia Surgery

Erector Spinae Plane BlockInguinal Hernia UnilateralQuality of Recovery (QoR-15)+2 more
Sanliurfa Education and Research Hospital60 enrolled2 locationsNCT07509957
Recruiting
Not Applicable

BIOTRONIK Investigation of the LivIQ Leadless Pacemaker System

Cardiac Rhythm DisorderBradycardiaAV Block+1 more
Biotronik, Inc.325 enrolled20 locationsNCT07118358
Recruiting
Not Applicable

Comparison of Two Quantitative EMG Monitors for Deep Neuromuscular Block in Laparoscopic/Robotic and VATS Surgery

Neuromuscular Blockade
Ohio State University35 enrolled1 locationNCT07706504
Recruiting
Not Applicable

Sternotomy PIFB Block in Open Heart Surgery

Autonomic Nerve Block
Ohio State University84 enrolled1 locationNCT06233318
Recruiting
Not Applicable

NMT EasyFit Sensor and Cable

Neuromuscular Blockade MonitoringNMT
GE Healthcare30 enrolled1 locationNCT07394140
Recruiting
Not Applicable

Cardiac Contractility Modulation in Chagas Heart Disease

Heart FailureSystolic DysfunctionChagas Cardiomyopathy+2 more
InCor Heart Institute60 enrolled1 locationNCT05519046
Recruiting

Transversalis Fascia Plane Versus Transversus Abdominis Plane Block for Postoperative Analgesia in Children

Transversus Abdominis Plane (TAP) Blockpostoperative analgesiaTransversalis Fascia Plane Block+2 more
Sakarya University36 enrolled1 locationNCT07242196
Recruiting
Not Applicable

Comparison of Intertransverse Process and Erector Spinae Plane Blocks in Acute Postoperative Analgesia Management for Laparoscopic Cholecystectomy Patients

Erector Spinae Plane BlockIntertransverse Process BlockAcut Postoperative Pain
Konya City Hospital110 enrolled1 locationNCT07504705
Recruiting
Phase 4

Minimal Effective Volume 90% for Double-injection Costoclavicular Block

Nerve BlockDose Finding StudyLidocaine+2 more
McGill University Health Centre/Research Institute of the McGill University Health Centre60 enrolled1 locationNCT07374952
Recruiting
Not Applicable

Sugammadex-Induced Clenching During Neuromuscular Blockade Reversal

Perioperative ComplicationsAnesthesia GeneralSugammadex+3 more
Wonkwang University Hospital240 enrolled1 locationNCT06962007
Recruiting
Not Applicable

Pectoral Nerve Block Versus Paravertebral Block In The Incidence of Chronic Pain After Breast Cancer Surgery

Mastectomy; LymphedemaChronic PainParavertebral Block+1 more
Assiut University90 enrolled1 locationNCT06082206
Recruiting
Not Applicable

External Oblique Intercostal Block (EOICB) for Laparoscopic Cholecystectomy

Postoperative PainLaparoscopic CholecystectomyPatient-controlled Analgesia+2 more
Cukurova University147 enrolled1 locationNCT07241949
Recruiting

Upper vs Lower Extremity BP in Spinal Cesarean Using ClearSight

AnesthesiaPregnancy RelatedBlockades Neuromuscular
Ohio State University327 enrolled1 locationNCT07685730
Recruiting
Not Applicable

Hemodynamic Effect of Dexmedetomidine Versus Magnesium Sulphate as an Adjuvant to Lidocaine in Preemptive Peribulbar Block in Patients Undergoing Dacryocystorhinostomy Under General Anesthesia

DexmedetomidineGeneral AnesthesiaLidocaine+4 more
Cairo University60 enrolled1 locationNCT07675616
Recruiting
Not Applicable

Cryo Nerve Block Trial

Intercostal Nerve BlockCryo AnalgesiaMinimally Invasive Lung Surgery
St. Antonius Hospital150 enrolled1 locationNCT06861387
Recruiting
Not Applicable

Effect of Caudal Block on Urethrocutaneous Fistula After Distal Hypospadias Repair

HypospadiasPediatric AnesthesiaCaudal Block
Saglik Bilimleri Universitesi Gazi Yasargil Training and Research Hospital80 enrolled2 locationsNCT07675798