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
- NCT06055894Recruiting
Plant-based diet and supplements for smoldering myeloma or MGUS
This study tests whether a plant-based diet and certain supplements can help people with smoldering multiple myeloma (SMM) or monoclonal gammopathy of undetermined significance (MGUS). Participants will learn to cook plant-based recipes and track their meals using a phone app.
Basking Ridge, New JerseyAges 18 years+ - NCT05943457Recruiting
Vitamin K2 for adults with episodic migraine
This trial tests whether taking vitamin K2 can reduce the number of migraine days per month. It may help people who have had episodic migraines for at least a year and meet specific migraine frequency and medication requirements.
Beirut, BeirutAges 18 years+ - NCT06027242Recruiting
Glutamine supplement after stomach cancer surgery
This trial tests if taking glutamine (a nutrient) as an oral supplement helps patients recover after surgery to remove stomach cancer. It aims to see if it improves healing and quality of life.
TaipeiAges 20 years+ - NCT05982223Recruiting
Integrative medicine for lymphoma survivors in early remission
This study explores how integrative medicine (such as nutrition, mind-body practices, or supplements) might help people recover and improve well-being after finishing lymphoma treatment. It is for patients who are in remission for less than one year.
HaifaAges 18 years+ - NCT05963113Recruiting
Exercise and extra protein for swallowing and aging strength
This study tests whether a swallowing exercise program plus a higher-protein intake can improve function in older adults at risk for swallowing problems. It may help by strengthening muscles used for swallowing and supporting overall physical health.
New York, New YorkAges 65 years+ - NCT05919940Recruiting
Testing a muscle stimulation and extra protein plan in ICU patients
This trial tests whether electrical muscle stimulation plus extra protein (protein substitute) can improve muscle health and metabolism in critically ill adults in the ICU. If you’re newly admitted and expected to stay on a breathing machine for several days, it may help you keep more muscle strength during recovery.
Vienna, State of ViennaAges 18 years+ - NCT05924295Recruiting
Study how ketone changes in the body with diet and fasting
This study looks at how your body processes “ketones,” which are energy molecules that rise with fasting or low carbohydrate intake. You may be asked to follow strict diet and activity rules before test days so researchers can see what affects ketone metabolism.
Novato, CaliforniaAges 20–70 - 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 - 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 - NCT05194397RecruitingPhase 2
Exercise plus NR supplement to boost fitness after stem-cell transplant
This trial tests whether a supervised exercise program, plus an NR supplement, can improve fitness in young people who have had an allogeneic (donor) stem-cell transplant for certain blood cancers or bone marrow conditions. It’s meant to help with energy and physical ability while monitoring safety.
Duarte, CaliforniaAges 10–30 - 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+ - NCT05656664Enrolling by invitation
Folic acid to reduce effects of arsenic exposure
This study tests whether taking folic acid can help reduce health effects from arsenic exposure in people living near a Superfund site. You would be enrolled only if you meet safety rules, including not being pregnant and not already taking folic acid.
Birmingham, AlabamaAges 18–89 - NCT05643859Recruiting
Fiber supplement study for bowel health and gut bacteria
This study tests whether adding a dietary fiber supplement can change the bacteria in your colon (gut microbiome). You may be asked to take the fiber supplement during evaluation for a non-cancer rectal condition.
Portland, OregonAges 18 years+ - NCT05624450RecruitingPhase 3
Test drug tozorakimab for hospitalized viral lung infection needing oxygen
This Phase 3 study tests tozorakimab to see if it helps people hospitalized with a viral lung infection that is causing low oxygen levels. You might qualify if you still need supplemental oxygen when the study starts.
Birmingham, AlabamaAges 18 years+ - 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 - NCT05465252Recruiting
Omega-3 supplement to slow early dry macular degeneration
This trial studies whether taking omega-3 fatty acids can slow the worsening of dry age-related macular degeneration (AMD) in people with early or intermediate disease. It may help by testing if omega-3 changes how the retina changes over time.
ShanghaiAges 50–85 - NCT05483465RecruitingPhase 4
NAD supplement trial for brain blood vessel health in aging
This trial studies whether taking an NAD supplement can support brain blood vessel health as people age. Participants will be tested for brain and health changes and may help researchers understand how to keep the brain’s blood vessels healthier over time.
Oklahoma City, OklahomaAges 60–85 - NCT05477901Recruiting
Cash transfers study in mothers and children
This study checks whether receiving cash support (a government cash transfer program) helps children’s brain and development. Families will be assessed, and children must be able to take part in activities that may include an MRI scan.
New York, New YorkAges 23–45 - NCT05435781RecruitingPhase 4
Hydrocortisone added during stress in people on low-dose prednisolone
This study tests whether adding supplemental hydrocortisone during stressful events can prevent problems in people who develop adrenal insufficiency from long-term prednisolone. It is meant to see if “stress dosing” is safer and helps the body respond to stress.
AarhusAges 50 years+ - NCT05340465RecruitingPhase 2
IV iron in preterm babies to reduce blood transfusions
This Phase 2 study tests whether giving a specific IV iron (darbe plus IV iron) can help preterm babies need fewer blood transfusions while still keeping their iron levels in a safe range. It focuses on babies in the NICU who were born early, and it compares transfusion use and iron sufficiency over time.
Seattle, WashingtonAges Up to 3 days - NCT05306925Recruiting
Arginine supplement study for newborns after major gut surgery
This study looks at whether giving an amino-acid supplement called arginine to newborns after major bowel surgery can improve the baby’s immune response. It may help doctors understand how to support recovery after conditions like necrotizing enterocolitis or certain birth defects.
Liverpool, MerseysideAges 5 months–10 months - NCT05294367RecruitingEarly Phase 1
Magnesium by diet or skin lotion for people with lymphoma
This early study tests whether replacing magnesium—either by diet or a topical (skin) supplement—can improve safety or other health measures in people with lymphoma. It focuses on people who have a slightly low magnesium level and checks blood magnesium repeatedly during the study.
Rochester, MinnesotaAges 18 years+ - NCT05121051RecruitingPhase 2
Broccoli sprout extract to reduce tobacco cancer-causing chemicals
This Phase 2 study tests whether broccoli sprout extract (Avmacol ES) can reduce cancer-causing substances linked to heavy smoking. It’s for adults who smoke heavily and may help lower harmful tobacco-related chemical effects in the body.
Tucson, ArizonaAges 18 years+
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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.