Adverse Effect Clinical Trials

27 recruitingLast updated: May 21, 2026

There are 27 actively recruiting adverse effect clinical trials across 13 countries. Studies span Not Applicable, Phase 2, Phase 3, Phase 4. Top locations include Boston, Massachusetts, United States, São Paulo, Brazil, Brazil, Ankara, Yenimahalle, Turkey (Türkiye). Updated daily from ClinicalTrials.gov.


Adverse Effect Trials at a Glance

27 actively recruiting trials for adverse effect are listed on ClinicalTrialsFinder across 6 cities in 13 countries. The largest study group is Not Applicable with 9 trials, with the heaviest enrollment activity in Boston, São Paulo, and Ankara. Lead sponsors running adverse effect studies include Saglik Bilimleri Universitesi, University of Sao Paulo General Hospital, and Brooke Army Medical Center.

Browse adverse effect trials by phase

About Adverse Effect Clinical Trials

Looking for clinical trials for Adverse Effect? There are currently 3 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 Adverse Effect 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 Adverse Effect 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 27 trials

Recruiting

International Registry of Thrombotic APS Patients Treated With Direct Oral Anticoagulants

ThrombosisAntiphospholipid SyndromeAnticoagulants Causing Adverse Effects in Therapeutic Use
Stéphane Zuily500 enrolled1 locationNCT04262492
Recruiting
Phase 2

MAGIC Ruxolitinib for aGVHD

Acute Graft Versus Host Diseaseadverse effectsAllogeneic Bone Marrow Transplantation
John Levine98 enrolled14 locationsNCT06936566
Recruiting

Paramedian Incidence Angles in Spinal Anaesthesia

Anesthesia; Adverse Effect, Spinal and Epidural
Consorci Sanitari de Terrassa90 enrolled1 locationNCT07210892
Recruiting

Long-term Follow-up of Subjects Treated With CAR T Cells

AdultProgression Free SurvivalOverall Survival+4 more
Marcela V. Maus, M.D.,Ph.D.45 enrolled1 locationNCT05024175
Recruiting
Not Applicable

Beat the Heat Boston

Heat StrainHeat ExposureHeat Stress+3 more
Harvard School of Public Health (HSPH)100 enrolled1 locationNCT06982339
Recruiting
Phase 3

Propofol and Etomidate Admixtures Comparisons Trial (PEAC Trial)

AnesthesiaAnesthesia ComplicationAnesthesia; Reaction+3 more
University of Texas Southwestern Medical Center200 enrolled1 locationNCT05358535
Recruiting
Not Applicable

Language During Inhalational Induction

Emergence DeliriumAnesthesia; Adverse Effect
Boston Children's Hospital128 enrolled1 locationNCT06324955
Recruiting
Not Applicable

Digital Transformation of Continuity of Care for Peripherally Inserted Central Catheters: SpadCare Experience

Central Venous CathetersVascular access devicesPatient Participation+20 more
Fundacion Miguel Servet201 enrolled1 locationNCT06905119
Recruiting
Phase 4

The Effect and Safety of Omitting Preoperative Alpha-adrenergic Blockade for Normotensive Pheochromocytoma

ParagangliomaPheochromocytomaAdrenalectomy; Status+1 more
Seoul National University Hospital24 enrolled1 locationNCT05702944
Recruiting

Analysis of Outcomes and Adverse Events of Patients Undergoing Radiation Therapy

Quality of LifeRadiotherapy; ComplicationsRadiotherapy; Adverse Effect
Daniel Zwahlen25,000 enrolled1 locationNCT05192876
Recruiting
Not Applicable

Addressing Unintentional Leakage When Using Nasal CPAP - Study A

Obstructive Sleep ApneaContinuous Positive Airway PressureAdverse Effect
University of Sao Paulo General Hospital100 enrolled2 locationsNCT06570616
Recruiting
Not Applicable

Addressing Unintentional Leakage When Using Nasal CPAP - Study B

Obstructive Sleep ApneaContinuous Positive Airway PressureAdverse Effect
University of Sao Paulo General Hospital50 enrolled1 locationNCT06570629
Recruiting
Phase 2

Pre-treatment With Azithromycin to Reduce Immunogenicity to to Anti-TNF Agents in Patients With Crohn's Disease

Crohn's Disease RelapseBiological Substance; Adverse Effect
Rambam Health Care Campus180 enrolled9 locationsNCT05599347
Recruiting
Not Applicable

Non-Invasive System to Deliver Therapeutic Hypothermia for Protection Against Noise-Induced Hearing Loss

Occupational HealthNoise-induced hearing lossOccupational Exposure+5 more
Restorear Devices LLC116 enrolled1 locationNCT06729632
Recruiting
Not Applicable

Apnoeic Oxygenation During Pediatric Tracheal Intubation

AnesthesiaAnesthesia; Adverse EffectAirway Complication of Anesthesia
University Hospital Heidelberg200 enrolled1 locationNCT06576596
Recruiting

Antibiotic Concentrations After MassivE Transfusion Study

Adverse Effects in the Therapeutic Use of Other and Unspecified Agents Affecting Blood Constituents
Brooke Army Medical Center417 enrolled2 locationsNCT06699901
Recruiting

Building a Platform for Precision Anesthesia in the Geriatric Surgical Patient

Cognitive ChangeCognitive ImpairmentCognitive Decline+3 more
Stanford University250 enrolled1 locationNCT03839784
Recruiting

Atmospheric Pressure and Epistaxis Relationship

Epistaxis NosebleedAtmospheric Pressure; Adverse Effect
Saglik Bilimleri Universitesi600 enrolled1 locationNCT06531577
Recruiting

Gastrointestinal Bleeding and Atmospheric Pressure Relationship

Gastrointestinal BleedingAtmospheric Pressure; Adverse Effect
Saglik Bilimleri Universitesi250 enrolled1 locationNCT06515353
Recruiting

Registry of Patients in Shock Treated With Vasopressin

ShockVasopressin DeficiencyVasopressin Causing Adverse Effects in Therapeutic Use+1 more
Hospital Universitario 12 de Octubre500 enrolled24 locationsNCT06422975