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
- NCT07088302Recruiting
Lactase enzyme for feeding intolerance in preterm babies
This trial tests if giving lactase enzyme supplements helps preterm babies (born at or before 32 weeks) tolerate their feedings better. If your baby was born early and started feeding within the first few days of life, this study may be a good fit.
AlexandriaAges 3 days–1 month - NCT07082673Recruiting
Sea buckthorn supplement for chronic constipation
This study tests a food supplement made from sea buckthorn to see if it helps people with chronic constipation have more regular and comfortable bowel movements.
NaplesAges 18–70 - NCT07085598Recruiting
Vitamin D3 for heart nerve health in men with epilepsy
This study tests whether taking vitamin D3 supplements can improve how well the nerves controlling your heart work in men with epilepsy who have low vitamin D levels. If you have low vitamin D from taking certain epilepsy medicines, this trial may help understand if vitamin D can support your heart health.
Dhaka, ShahbagAges 20–40 - NCT07081373Recruiting
Repeat dose of liposomal bupivacaine for pain after anal fistula surgery
This trial tests if a repeat dose of liposomal bupivacaine (a long-acting numbing medicine) helps reduce pain after surgery for anal fistula. It may be a good option if you are having this surgery and want better pain control.
Guangzhou, GuangdongAges 18–60 - NCT07076849RecruitingPhase 2
Probiotics for Iron in Pregnancy
This trial tests if taking a probiotic can help improve iron levels and overall blood health in pregnant women who are at risk for iron deficiency. If you are between 10 and 16 weeks pregnant with a single baby and have slightly low iron, this study may help you.
Chicago, IllinoisAges 18–45 - NCT07084597Recruiting
Vitamin D3 for Heart Health in Parkinson's Men
This study tests whether taking vitamin D3 supplements can improve the nerve function that controls your heartbeat in men with Parkinson's disease who have low vitamin D levels. If you have mild to moderate Parkinson's and are on levodopa, this trial may help understand if vitamin D can support your heart health.
Dhaka, ShahbagAges 51–70 - NCT06974994Recruiting
Antibiotic Use in Newborns and Gut Bacteria Health Study
This study explores how antibiotics given during delivery affect a baby's gut bacteria and long-term health. If you are pregnant or just gave birth and received antibiotics during labor, you and your newborn may be able to join.
Turku, Valitse Maakunta.Ages 2 hours+ - NCT06695429Recruiting
Beetroot juice to prevent kidney damage from contrast dye
This trial tests if drinking beetroot juice can help protect your kidneys from damage caused by the dye used during heart procedures. It is for people hospitalized with a certain type of heart attack who are at moderate to high risk of kidney problems.
CartagenaAges 18 years+ - NCT06959043Recruiting
Diet and exercise for type 2 diabetes
This study tests if a plant-based diet and exercise program can improve blood sugar control in people with type 2 diabetes. Participants will live in a hospital for 4 weeks to follow the program closely.
São Paulo, São PauloAges 45–70 - 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+ - NCT07066267Recruiting
Mitochondria from fat cells to boost IVF eggs
This study tests if giving your eggs a boost from your own fat-cell mitochondria can improve chances of a healthy pregnancy for people who have had multiple failed IVF cycles. You'll donate a small amount of fat through liposuction, and the mitochondria from those cells will be added to your eggs before fertilization.
ColomboAges 29–39 - NCT05366933RecruitingPhase 1
B-Complex vitamins to protect astronauts during long space missions
This early study tests whether a B-vitamin supplement (called B-Complex) can act as a helpful countermeasure during long stays on the International Space Station. It is only for astronauts assigned to specific 6–12 month missions.
Houston, TexasAges 20–100 - NCT07067697Recruiting
Exercise and nutrition for older adults in the hospital
This study tests whether a supervised exercise program, combined with oral nutritional supplements, helps hospitalized older adults who are malnourished or at risk. It aims to improve strength and recovery during their hospital stay.
Pamplona, NavarreAges 75 years+ - NCT07068191Recruiting
Gepaktiv vs other drugs for fatty liver with enlarged liver
This study tests a new drug, Gepaktiv, compared to two other treatments (UDCA and ademetionine) for people with metabolic fatty liver disease who also have an enlarged liver. You may be able to join if you meet specific test results showing moderate liver fat and scarring.
Tyumen, Tyumen OblastAges 18–65 - NCT06847139Recruiting
Zinc vs. folic acid for high homocysteine in kidney dialysis
This trial tests whether zinc supplements can lower high homocysteine levels better than folic acid in people with chronic kidney disease who are on hemodialysis. It aims to find a simple, safe way to help protect your heart and blood vessels.
ChittagongAges Any age - NCT07062198RecruitingPhase 3
Metabolic supplement for Alzheimer's disease
This trial tests a special supplement combination designed to support brain energy use in people with Alzheimer's. It aims to see if the supplement can help slow cognitive decline.
AlanyaAges 50 years+ - NCT07063732Recruiting
Ketone drink, high altitude, and brain blood flow during exercise
This trial tests whether a ketone monoester supplement affects brain blood flow and exercise performance at high altitude. It may help us understand how to support brain function during altitude exposure.
Bishop, CaliforniaAges 18–35 - NCT07064005RecruitingPhase 1
Boosting glutathione with a supplement in Parkinson's
This study tests whether a supplement called gamma-glutamylcysteine can increase levels of a natural antioxidant called glutathione in the brain of people with Parkinson's. If you are between 50 and 80 and have mild cognitive symptoms, this trial may help researchers understand a new way to support brain health.
Pittsburgh, PennsylvaniaAges 50–80 - NCT06080841Recruiting
Turmeric supplement study for cervical cancer
This trial tests whether a curcumin (turmeric) supplement can help women with advanced cervical cancer who are about to start standard treatment with chemotherapy and radiation. It aims to see if adding curcumin improves outcomes.
Mexico City, Mexico CityAges 18 years+ - NCT06624709Recruiting
Iron schedule trial for premature babies
This study tests whether giving iron supplements 4 times a week is better than daily iron for premature babies. It aims to improve hemoglobin levels at 6 months.
Geneva, Canton of GenevaAges 2 weeks–2 weeks - NCT07048860Recruiting
Pilot study: intense exercise and coaching for older adults with weight and memory concerns
This pilot study tests a program to help older adults who are overweight, sedentary, and have mild memory changes. The goal is to see if intense, supervised physical activity and lifestyle coaching can improve mobility and thinking.
ToulouseAges 65–85 - NCT07050173RecruitingPhase 1
Supplement study for retired athletes and veterans with head impacts
This study tests whether a supplement called gamma-glutamylcysteine can help people who have had repeated head impacts from football or military combat. You will take the supplement and have brain scans and memory tests to see if it makes a difference.
Pittsburgh, PennsylvaniaAges 30–70 - NCT07050888Recruiting
Inulin supplement study for type 1 diabetes
This study tests if taking inulin, a type of fiber, can help improve blood sugar control and immune health in people with type 1 diabetes. Participants will take a daily supplement for a period of time to see if it makes a difference.
AmsterdamAges 18–70 - NCT07050693Recruiting
Can a breast-milk sugar supplement prevent colds and stomach bugs?
This study tests a chewable supplement made from a natural sugar found in breast milk (2'-fucosyllactose) to see if it helps prevent colds and stomach bugs in young children who attend daycare or school. It is for healthy children between 1 and 4 years old.
Bari, BariAges 1–4
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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.