Clinical trials
Supplementation clinical trials
Below are recruiting supplementation clinical trials, each written for real people, not researchers. We’re tracking 675 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07662330Recruiting
Spermidine for weight and cholesterol in overweight adults
This trial tests if a natural supplement called spermidine can help lower cholesterol and body weight in overweight people with high cholesterol. You cannot be on any cholesterol or diabetes medications.
Shanghai, Shanghai MunicipalityAges 18–60 - NCT07665658Recruiting
Supplements for ADHD: Calming brain inflammation in kids
This study tests whether special supplements can help calm inflammation in the brain and improve ADHD symptoms in children. It might be a good fit if your child's ADHD is diagnosed and they are not taking antibiotics or have other health issues like gut problems or severe allergies.
Peshawar, KPKAges 6–12 - NCT07666685Recruiting
Beetroot Extract for Health in Adults 75+
This study looks at whether taking beetroot extract can help improve quality of life and daily function in adults 75 and older. You will be asked to take the extract and complete simple health questionnaires.
Pamplona, NavarreAges 75 years+ - NCT07662954Enrolling by invitation
Magnesium and Spinning for Heart Health in Young Men
This study tests whether adding magnesium to regular spinning (indoor cycling) exercise improves heart function, reduces inflammation, and boosts aerobic (cardio) fitness in young, active men.
KaramanAges 18–30 - NCT07579078Enrolling by invitation
Vitamin D and Brain Activity in Women With Depression
This study tests whether vitamin D supplements can improve brain wave patterns in women diagnosed with depression who have low vitamin D levels. Researchers will measure brain activity using EEG (a non-invasive test that records electrical signals from the brain) before and after vitamin D treatment.
DhakaAges 20–40 - NCT07465497Enrolling by invitation
Preventing Chemo Brain with Prebiotics and Synbiotics
This trial tests whether taking a special blend of prebiotics and synbiotics (friendly bacteria and food for them) can help prevent or reduce memory and thinking problems that sometimes happen during chemotherapy for breast cancer.
Zapopan, JaliscoAges 18 years+ - NCT07378033Enrolling by invitation
Body fat reduction and weight management study
This study tests a new approach to help with weight loss and body fat reduction. It may be a good fit if you are an adult with a BMI in the overweight to moderately obese range and you are not currently using weight-loss medications.
Bangalore, KarnatakaAges 19–65 - NCT07341789Enrolling by invitation
Vitamin B12 and orange extract for better performance
This study tests whether vitamin B12, natural orange extract, or both together can improve your physical and mental performance. It is for healthy men who exercise regularly and eat citrus fruits.
La Ñora, MurciaAges 18–45 - NCT07339280Enrolling by invitation
Probiotics for COPD: symptoms, lungs, and inflammation
This study tests whether taking a probiotic can improve symptoms, lung function, and inflammation in people with COPD. It is for adults with stable COPD who have not had a flare-up or treatment change in the last two months.
KarlovacAges 18 years+ - NCT07280520Enrolling by invitation
Luteolin supplement for athlete performance and metabolism
This study tests whether a daily luteolin supplement (a natural compound found in some plants) can improve how your muscles and fat cells use energy, boost your athletic performance, and change your body composition over 12 weeks.
Amman, Amman GovernorateAges 18–35 - NCT07234916Enrolling by invitation
Multivitamins for people starting weight-loss injections
This trial tests whether a multivitamin can help people on the weight-loss injection Tirzepatide maintain healthy vitamin levels. If you're using this injection and meet the other criteria, you may join.
AmersfoortAges 18–70 - NCT07224555Enrolling by invitation
A gummy supplement for women with thinning hair
This study tests whether a daily gummy supplement called Xtressé can help with self-perceived thinning hair in women. If you are a woman between 18 and 65 who feels your hair is thinning, this trial may help determine if the supplement is effective for you.
Maitland, FloridaAges 18–65 - NCT07202403Enrolling by invitation
Dietary supplements and aging therapy trial
This trial tests dietary supplements and other treatments aimed at slowing the effects of aging. It is looking for generally healthy adults who are not taking immune-altering medications or other conflicting therapies.
New York, New YorkAges 18–75 - NCT07162285Enrolling by invitation
Bubble CPAP for Preterm Babies with Breathing Problems
This trial tests a special breathing support called bubble CPAP, given right after birth in the delivery room, to help preterm babies (born before 34 weeks) who are having trouble breathing. It aims to see if starting this treatment early can improve their breathing and health.
DhakaAges 5 minutes–30 minutes - NCT07114588Enrolling by invitation
High-protein drink for muscle loss during cancer treatment
This study tests whether a high-protein drink can help prevent or improve muscle loss and weakness in people with cancer who are getting chemotherapy or preparing for chest surgery. If you are 40 or older, have low muscle strength, and can manage daily activities, you may be able to join.
Taipei, TaipeiAges 40 years+ - NCT07036952Enrolling by invitation
Omega-3 for metabolic syndrome in PCOS
This trial tests if adding omega-3 supplements to standard care helps women with PCOS who also have metabolic syndrome. It may offer a natural way to improve associated health issues.
Dhaka, BsmmuAges 18–36 - NCT06971445Enrolling by invitation
Omega-3 supplements for pregnant women with HIV
This trial tests whether taking omega-3 supplements can improve pregnancy outcomes and reduce inflammation in pregnant women living with HIV who are on antiretroviral therapy. If you are between 20 and 29 weeks pregnant with a single baby, you may be eligible to join.
Mexico City, Mexico CityAges 18 years+ - NCT06800859Enrolling by invitation
Predicting headache after spinal puncture
This study looks at patients having spinal anesthesia to find patterns that might predict a post-dural puncture headache. It aims to create a risk model that can help prevent or manage this complication.
Wuhan, HubeiAges 3–34 - NCT06756711Enrolling by invitation
Supplement combination for children with autism
This trial tests whether a combination of supplements can help children with autism spectrum disorder. It involves taking oral supplements daily for 6 months, along with blood tests and behavior assessments at the start, midpoint, and end.
BucharestAges 3–14 - NCT06731582Enrolling by invitationPhase 3
Nicotinamide supplement study for glaucoma patients
This trial tests whether a vitamin B3 supplement called nicotinamide can help slow down vision loss in people with glaucoma. It is for those with moderate disease who are already on treatment.
Singapore, Central SingaporeAges 21 years+ - NCT06648018Enrolling by invitation
Iron supplement vs. nutrition advice in healthy women
This study compares taking an iron supplement to receiving nutritional advice in healthy women who menstruate and exercise regularly. The goal is to see which approach better supports iron levels and overall health.
LinköpingAges 20–40 - NCT06455423Enrolling by invitation
ELDOA and adjustments for upper back pain and posture
This study tests whether adding a gentle stretching technique (ELDOA) to standard upper back adjustments can improve upper back pain, reduce hunching, and correct forward head posture. It is for adults with upper back discomfort and postural issues.
Islamabad, FederalAges 19–44 - NCT06401694Enrolling by invitation
Enhanced home meal program for older adults' health
This trial is testing a new, enhanced home-delivered meal program for older adults. It aims to see if these meals improve health and well-being for people who are already eligible for Meals on Wheels and are at nutritional risk.
Storrs, ConnecticutAges 60 years+ - NCT06373848Enrolling by invitation
Vitamin E and Coenzyme Q10 for early gum disease
This study tests whether adding vitamin E and coenzyme Q10 to standard gum treatment can help heal early-stage chronic gum disease. It is for otherwise healthy adults aged 28-35 with mild gum pockets on their lower molars.
TehranAges 28–40
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Common questions
- Are there clinical trials for supplementation?
- Yes. Clin2 currently lists 675 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.