Clinical trials
Supplementation clinical trials
Below are recruiting supplementation clinical trials, each written for real people, not researchers. We’re tracking 671 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05212454RecruitingPhase 3
Capecitabine added after surgery for high-risk ER-positive breast cancer
This Phase 3 study tests whether adding capecitabine (a chemotherapy pill) after breast cancer surgery can lower the chance the cancer comes back. It targets people with hormone-receptor–positive and HER2-negative breast cancer who are considered “high risk.”
Hanzhou, ZhejiangAges 18–70 - NCT05926713Recruiting
Diet supplement plus exercise for muscle loss with lung disease
This trial studies whether adding a dietary supplement to exercise can improve muscle strength in people with muscle loss (sarcopenia) who also have lung disease such as COPD or ILD. It may help you build strength and function without needing urgent hospital care.
TaichungAges Any age - NCT05916287Recruiting
STANISLAS cohort follow-up visit for heart and kidney health
This study is a follow-up visit for people who joined the STANISLAS family health cohort. Researchers look at how genes and environment may affect heart and kidney (kidneys) health over time.
Vandœuvre-lès-Nancy, LorraineAges Any age - NCT05604846Recruiting
Probiotic drops for very preterm babies in Scandinavia
This trial studies whether giving probiotic supplements to extremely preterm newborns helps improve health outcomes. It’s meant for babies born very early, and the results could help guide safer early nutrition and care.
Solna, Stockholm CountyAges 5 months–6 months - NCT06187090Recruiting
Supplement therapy for adults with autism
This trial tests whether a specific supplement can help adults with Level 1 autism. It is open only to Italian-speaking participants aged 18–35 who do not have other major mental health or brain conditions.
Udine, UDAges 18–35 - NCT05740722RecruitingPhase 2
Nicotinamide riboside for progressive multiple sclerosis
This Phase 2 trial studies whether a vitamin-like supplement called nicotinamide riboside can slow or improve disability in progressive multiple sclerosis. It may help people whose symptoms have been steadily getting worse over the last 2 years.
BergenAges 18–65 - NCT07859280Recruiting
Vitamin D in eggs for healthy adults
This study tests whether eating eggs enriched with vitamin D can help raise vitamin D levels in healthy adults. If it works, it could be a simple way to improve vitamin D without supplements.
Ithaca, New YorkAges 18–40 - NCT07874009Enrolling by invitation
Magnesium with botox for gummy smile
This study tests whether taking a magnesium supplement can make botox injections for a 'gummy smile' last longer. Botox is a treatment that relaxes the muscles causing too much gum to show when you smile, and magnesium might help it work for a longer time.
CairoAges 18 years+ - NCT07865377Recruiting
Resveratrol supplement for heart disease in postmenopausal women
This study tests whether a supplement called resveratrol can positively affect estrogen-related markers in postmenopausal women with stable coronary artery disease. It may help understand how this supplement could support heart health.
São Paulo, São PauloAges 45–70 - NCT07873372Enrolling by invitation
Kidney protection with vitamin C and rutin during vancomycin treatment
This trial tests whether taking vitamin C and rutin (a plant compound) together can help protect the kidneys from damage caused by the antibiotic vancomycin. It compares this combination to vitamin C alone and to no extra supplement.
Cairo, Cairo GovernorateAges 18 years+ - NCT06214598Recruiting
Anti-inflammatory diet for breast cancer patients on hormone therapy
This study tests whether a special anti-inflammatory diet can help reduce side effects in breast cancer survivors who are taking aromatase inhibitors after menopause. You would be randomly assigned to either follow the diet for 6 months or continue your usual diet, and your health will be monitored.
BelgradeAges 45–70 - NCT04868578Recruiting
Vitamin PPI supplements for ectopic calcification in PXE
This trial studies whether taking PPI-type supplements can slow or reduce unwanted calcification in people with PXE. It’s meant to help manage disease changes caused by abnormal calcium deposits, based on your medical testing.
AngersAges 18–65 - NCT06261554Recruiting
Low-dose sesame oral immunotherapy for children
This study tests if a very low daily dose of sesame protein (given as a powder under the tongue) can help children with sesame allergy become less sensitive to sesame. The goal is to reduce the risk of severe allergic reactions from accidental exposure.
Warsaw, Masovian VoivodeshipAges 3–17 - NCT07846254Recruiting
Daily fiber supplement for a healthy gut
This study tests whether a daily soluble fiber supplement can improve the balance of bacteria in your gut. If you are generally healthy and have normal bowel habits, you may be able to join and help researchers learn more about gut health.
Addison, IllinoisAges 18–60 - NCT07846371Recruiting
Dietary supplement to lower PFAS levels in firefighters
This trial tests whether a daily dietary supplement can reduce levels of PFAS chemicals in the blood. If you are a male firefighter with past exposure to PFAS, this study might help you lower these chemicals.
Chicago, IllinoisAges 18 years+ - NCT07843342Recruiting
How well the body absorbs liposomal glucosamine supplements
This study tests a special form of glucosamine (a supplement often used for joint health) to see how well the body absorbs it. Liposomal means the supplement is wrapped in a protective layer that may help your body take it in better.
TaipeiAges 18 years+ - NCT06147635RecruitingPhase 2
Tributyrin for early acute pancreatitis
This trial tests a supplement called tributyrin (related to butyrate) to see if it can help prevent complications from acute pancreatitis when given early after diagnosis. It is for people having their first episode of pancreatitis, not for those with certain causes or weakened immune systems.
Delft, South HollandAges 18 years+ - NCT07833579Enrolling by invitation
Beetroot juice and basketball performance in female players
This trial tests whether drinking beetroot juice improves physical performance like jumping and sprinting in female basketball players. Participants will follow a supplement routine and complete performance tests.
Madrid, MadridAges 18–35 - NCT07829484Recruiting
Exercise and olive oil for fall prevention in older adults
This study tests whether a home exercise program combined with daily extra virgin olive oil can reduce the risk of falls in older adults who are frail or at high risk of falling. It may help improve strength, balance, and overall health.
Pamplona, NavarreAges 75 years+ - NCT07827989Recruiting
Study of phosphate supplements on hormone levels in low blood phosphate
This study looks at how giving phosphate supplements affects a hormone called FGF23 in patients with low blood phosphate levels. It aims to help understand how the body responds to treatment.
Clermont-FerrandAges 18 years+ - NCT07813975Recruiting
Vitamin D for healing bed sores in intensive care
This trial tests whether giving vitamin D supplements through a feeding tube can help heal bed sores (pressure injuries) in intensive care patients. It is for patients who have low vitamin D and early-stage bed sores, and who are otherwise stable enough to participate.
CairoAges 18–60 - NCT07816263Recruiting
Guaraná supplement for cancer-related fatigue
This trial tests whether a natural supplement called guaraná can help reduce fatigue in people undergoing cancer treatment. Guaraná contains caffeine and other compounds that may boost energy and improve well-being.
Bogotá, Bogota D.C.Ages 18 years+ - NCT07809321Enrolling by invitation
Beta-alanine effects on performance in female rugby players
This study tests whether a daily supplement called beta-alanine can improve muscle performance and heart health in female rugby players. It might help you play better and recover faster.
Madrid, MadridAges 18–40 - NCT07802002Recruiting
Dietary supplement to prevent bowel injury during radiation for rectal cancer
This trial tests whether a special dietary supplement can help protect the rectum from radiation damage during chemoradiation for locally advanced rectal cancer. If it works, it may reduce painful bowel symptoms like frequent stools and cramping.
Guangzhou, GuangdongAges 18–75
Hear when a new Supplementation trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for supplementation?
- Yes. Clin2 currently lists 671 recruiting supplementation studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a supplementation trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a supplementation trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.