Supplement Clinical Trials

1 recruiting

Frequently Asked Questions

Common questions about Supplement 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 32 trials

Recruiting
Not Applicable

Effects of Physical Exercise and a Nutritional Supplement on Body Composition, Metabolic Function, and Overall Health in Adults With a Metabolically Challenging Profile

ExerciseSupplementationAging+1 more
University of Valencia70 enrolled1 locationNCT07504068
Recruiting
Not Applicable

Effect of Micronized Creatine Monohydrate on Muscle Mass, Strength and Performance in Older Adults Submitted to Total Knee Arthroplasty

Physical PerformanceFrailty at Older AdultsFunctional Capacity+3 more
Consorci Sanitari del Maresme262 enrolled1 locationNCT06925880
Recruiting

Assessing Health System Readiness for Scaling Antenatal MMS in Cambodia

PregnancyAnemiaMicronutrients+4 more
University of British Columbia710 enrolled1 locationNCT07400796
Recruiting
Not Applicable

Developing a Nutritional Supplement to Increase Collagen Synthesis in People

ExerciseDietary SupplementsConnective Tissue
University of California, Davis20 enrolled1 locationNCT06138106
Recruiting
Not Applicable

The Impact of 12 Week Retention of Nutrients on Skin and the Perception of Physical Health Status

Healthy VolunteersDietary Supplementation
ChinaNorm120 enrolled1 locationNCT07383974
Recruiting
Not Applicable

Effects of Chronic Creatine and Beta-Hydroxy-Beta-Methylbutyrate Supplementation on Oxidative Stress, Inflammation, Muscle Strength, and Body Composition in Individuals With Down Syndrome

SupplementationDown Syndrome (DS)
Universidad de Burgos50 enrolled1 locationNCT07213063
Recruiting
Early Phase 1

Nutrition in Patient With Critical Limb Ischemia

MalnutritionNutritional SupplementsCritical Limb Ischemia
Boston Medical Center30 enrolled1 locationNCT03529019
Recruiting
Not Applicable

Nutritional Ketosis: a Novel Metabolic Strategy to Treat Lymphedema Patients?

LymphedemaKetogenic DietingKetone Ester Supplement
Universitaire Ziekenhuizen KU Leuven81 enrolled1 locationNCT03991897
Recruiting
Phase 3

A Study in Healthy Adults to Compare the Bioavailability of EPA + DHA From Two Microalgal Sources to One Fish Source and Placebo

Healthy ParticipantsAbsorption of Omega-3Omega-3 Supplementation
RDC Clinical Pty Ltd120 enrolled1 locationNCT07241377
Recruiting
Not Applicable

Effects of Breathing Training and Nitrate on Exercise at Simulated Altitude

Exercise TrainingHealthy AdultsInspiratory Muscle Training+5 more
Embry-Riddle Aeronautical University80 enrolled1 locationNCT07216755
Recruiting
Not Applicable

Impact of Physical Exercise on Hospitalized Older Adults Malnourished or at Risk, With Oral Nutritional Support

Older AdultsPhysical ExerciseHospitalized+1 more
Fundacion Miguel Servet102 enrolled1 locationNCT07067697
Recruiting
Phase 3

Effects of β-alanine and Sodium Bicarbonate Supplementation on Physical Capacity and Biochemical Markers Concentrations

SupplementationSportsFemale Athletes
Poznan University of Physical Education100 enrolled1 locationNCT07092930
Recruiting

Study of the Adequacy Between Calcium Supplementation and Dietary Intake in Treatment-naive Patients After a Fracture

Osteoporosis, Post-TraumaticCalcium SupplementationOsteoporosis, Management Care, Fracture
Centre Hospitalier de Colmar100 enrolled1 locationNCT06847087
Recruiting
Not Applicable

The Efficacy and Safety of Precision REpetitive Transcranial Magnetic Stimulation in Alleviating Motor Symptom in Parkinson's Disease

Parkinson DiseaseTranscranial Magenetic StimualtionSupplementary Motor Area
Anhui Medical University290 enrolled1 locationNCT06383247
Recruiting
Not Applicable

Sanghuangporus Sanghuang Supplementation to Improve Anti-Fatigue Performance in Healthy Adults

Physical PerformanceNutritional Supplementation
National Taiwan Sport University60 enrolled1 locationNCT06902662
Recruiting
Early Phase 1

Effect of Nitrate Supplementation on Blood Pressure and Microvascular Function of Resistant Hypertensive Patients

Arterial HypertensionMicrovascular FunctionResistant Hypertension+1 more
National Institute of Cardiology, Laranjeiras, Brazil50 enrolled1 locationNCT06169241
Recruiting
Not Applicable

OPTIMIZING ROUTINE DELIVERY OF ESSENTIAL CHILD HEALTH AND NUTRITION PACKAGE THROUGH PRIMARY HEALTH CARE CONTACTS

Coverage of Vitamin A SupplementationCoverage of ImmunizationFeasibility and Fidelity of Implementation
Nutrition International1,928 enrolled2 locationsNCT06949930
Recruiting
Not Applicable

Investigating the Effects of Krill Oil on the Recovery From Muscle Damaging Exercise: a Randomised Controlled Trial

Looking at the Effects of Krill Oil Supplementation on Recovery From Muscle-damaging Exercise
University of Glasgow32 enrolled1 locationNCT06939244
Recruiting
Not Applicable

Study of the Effect of Capsinoid Supplementation on Brown Adipose Tissue in Obese Adolescents

ExerciseObese AdolescentsDiet Modification+1 more
University of Avignon38 enrolled1 locationNCT06916208
Recruiting

Influencing a Vegan Diet and the Intake of Dietary Supplements During Pregnancy and Childhood

PregnancyDietary SupplementsVegan Diet+1 more
Wolfgang Huber-Schneider1,000 enrolled1 locationNCT06669819