Clinical trials
Supplementation clinical trials
Below are recruiting supplementation clinical trials, each written for real people, not researchers. We’re tracking 694 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05465629Recruiting
Viome nutrition program for IBS symptoms
This trial studies whether a Viome nutrition program (based on supplement/formulation instructions) can improve symptoms in people with IBS. You may be asked to follow a specific nutrition plan and tracking steps for the study period.
Bothell, WashingtonAges 25–75 - NCT05491434Recruiting
Study of muscle loss in colon cancer patients
This trial looks at muscle loss (called sarcopenia) in people with colon cancer to test an intervention that may help strength or recovery. If you’re age 70 or older and meet the cancer and health requirements, you may be able to take part.
L'Hospitalet de Llobregat, BarcelonaAges 70 years+ - NCT05519254RecruitingPhase 3
Lactoferrin and lysozyme for lasting diarrhea in young children
This trial tests whether a supplement (lactoferrin and lysozyme) can help children who have long-term effects after diarrhea. It’s designed for children ages 6 to 24 months and checks whether improving gut recovery can reduce ongoing problems.
Homa BayAges 6 months–2 years - NCT05564273Recruiting
Viome nutrition program for people with metabolic health issues
This trial tests whether a personalized Viome nutrition program can improve metabolic health (such as higher fasting insulin or glucose). You would use their app and follow the program, while researchers monitor health outcomes over time.
Bothell, WashingtonAges 25–75 - NCT05571514Recruiting
Pearl supplement study to help prevent menopause-related bone loss
This study tests whether a “mother-of-pearl” nutritional supplement can help prevent osteoporosis after menopause. You may qualify if you’re a post-menopausal woman with lower-than-normal bone density but without past fragility fractures.
Clermont-FerrandAges 50–65 - 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 - NCT05651347RecruitingPhase 3
Melatonin in pregnancy to protect babies with slow growth
This trial studies whether taking melatonin during pregnancy can help protect the baby’s brain and organs in cases of poor fetal growth. It focuses on pregnancies at a specific gestational age with signs that the placenta may not be working well.
Camperdown, New South WalesAges 18 years+ - NCT05667090Recruiting
High-dose vitamin D3 to ease chronic pain in dialysis patients
This study tests whether taking a very high dose of vitamin D3 can reduce moderate to severe chronic pain in people on hemodialysis. It may help by improving vitamin D-related pathways that could affect pain, but you must also meet specific health and testing requirements.
TaipeiAges 20 years+ - NCT05675397Recruiting
Donor milk supplement for very small preterm babies
This study looks at giving donor human milk to very low-birth-weight preterm babies when a mother’s own milk is not enough during the first three weeks. It may help babies get human milk instead of formula during that early period.
AthensAges 1 day–3 weeks - NCT05700058Recruiting
Testing how different Super-whey doses affect muscle growth
This study checks how different doses of “Super-whey” influence muscle protein building in adults. It may help figure out the best whey dose for building muscle, especially in older adults.
DerbyAges 65–85 - NCT05702398RecruitingEarly Phase 1
Vitamin A and niacinamide for high-risk skin cancer
This early trial tests whether adding vitamin A and niacinamide (a form of vitamin B3) can help people with a history of certain skin cancers reduce new disease. It is designed for adults with specific prior skin cancer or skin lesion treatment patterns.
Providence, Rhode IslandAges 18 years+ - NCT05704036RecruitingPhase 4
Estrogen use and bone health in women with cystic fibrosis
This observational study looks at how taking (or not taking) estrogen affects bone health in women with cystic fibrosis (CF). If you may have low estrogen, it also explores whether estrogen levels and symptoms relate to bone density over time.
Baltimore, MarylandAges birth–100 years - NCT05728229Recruiting
Nutrition program for fatigue after stroke
This study looks at whether a nutrition approach can reduce fatigue in people after a stroke. It will compare the effects of diet-related support during recovery, aiming to help you feel less tired and more active.
Roma, RMAges 55 years+ - 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 - NCT05823727Recruiting
Collagen supplement study before and after knee replacement
This study tests whether taking collagen peptides can improve how knee tissues heal and remodel after total knee arthroplasty (knee replacement). It also looks at functional recovery and wound healing, especially during the physical therapy period in Little Rock.
Little Rock, ArkansasAges 50–75 - NCT05841290Recruiting
Compare types of dental sealers for post-procedure pain
This study checks how much pain happens after dental procedures using different types of filling/sealing materials. It may help you and future patients understand which sealer options tend to cause less postoperative discomfort.
El Shorouk, Cairo GovernorateAges 18–50 - NCT05844644RecruitingPhase 2
Golo plan for weight and blood sugar in prediabetes
This trial tests whether the Golo for Life plan (with a release supplement) can improve blood sugar and help with weight in adults who have prediabetes or type 2 diabetes. If you join, you’ll follow the program and attend clinic visits while your health, diet, and weight are tracked.
LaSalle, OntarioAges 18–75 - NCT05846880RecruitingEarly Phase 1
Vitamin D3 supplement for people with multiple myeloma
This early-phase study tests whether taking a Vitamin D3 supplement can be safe and helpful for people with symptomatic multiple myeloma. It may help researchers understand how Vitamin D affects the disease and how patients tolerate treatment.
Augusta, GeorgiaAges 18 years+ - NCT06072625Recruiting
Olive oil supplement for premature babies fed by tube
This trial tests whether adding olive oil to the tube feedings of premature babies helps them grow and develop better. It may be an option for babies born at 32 weeks or less who are tolerating full feedings early on.
BursaAges 2 weeks–1 month - NCT05860270RecruitingPhase 4
Vitamin D by mouth to prevent peritoneal dialysis peritonitis
This trial tests whether taking vitamin D by mouth can lower the risk of peritonitis (a painful infection of the lining around the abdomen) in people on peritoneal dialysis. You might benefit if your vitamin D level is low and you meet other safety requirements.
Beijing, Beijing MunicipalityAges 19 years+ - NCT05862779Recruiting
Omega-3 and whey for muscle strength in postmenopausal women
This study tests whether taking omega-3 and whey protein supplements helps older, postmenopausal women build or keep lean muscle (less fat, more muscle). It also checks safety, especially for heart and kidney health, while you follow a strength-exercise plan.
Uberlândia, Minas GeraisAges 60–85 - NCT05884138Recruiting
Amino acid supplement and exercise for people on dialysis
This trial studies whether taking essential amino acids along with exercise can improve muscle function in people receiving hemodialysis. It may help you build or maintain strength and mobility.
Daejeon, South KoreaAges 20–80 - NCT05891886RecruitingEarly Phase 1
Testing supplemental oxygen for early blood clot in the lungs
This early-phase trial studies whether giving extra oxygen can help people with a recently diagnosed lung blood clot (pulmonary embolism). It mainly looks at people who have early symptoms and signs that the right side of the heart is under strain.
Boston, MassachusettsAges 18 years+ - 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
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Common questions
- Are there clinical trials for supplementation?
- Yes. Clin2 currently lists 694 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.