Treatment
Stool samples clinical trials
We’re tracking 64 recruiting studies that include Stool samples, each written for real people, not researchers, below.
Recruiting studies
- NCT06387030Recruiting
EoE biopsy study during endoscopy
This trial looks at taking a small tissue sample during a routine endoscopy to better understand eosinophilic esophagitis (EoE). It may help doctors learn how to diagnose and track EoE more easily.
ParisAges 2–17 - NCT06694363Recruiting
New test to guide treatment for APDS immune disorder
This study uses a new blood test to find and monitor people with APDS, a rare immune disease, who may be helped by the drug leniolisib. It aims to improve how doctors screen and track treatment response.
BordeauxAges 12 years+ - NCT06292598Recruiting
Gut bacteria and sleep disorder study
This study compares gut bacteria and substances from the gut in people with type 1 narcolepsy versus those without. It aims to understand how gut health might be linked to this sleep disorder.
Nîmes, GardAges 10 years+ - NCT05532865Recruiting
Biobank study for adults with systemic sclerosis
This study follows adults with systemic sclerosis who are being seen at a specific hospital and asks for consent to store blood and other samples for future research. It may help researchers better understand the disease and develop better tests or treatments over time.
BrestAges 18 years+ - NCT05994976Recruiting
Collecting skin samples from people with skin conditions
This study collects skin samples (like small biopsies or swabs) from people with certain skin conditions and from healthy volunteers. The samples help researchers learn more about these conditions and may lead to better treatments.
Montreal, QuebecAges 18 years+ - NCT07280091Recruiting
Skin and gut bacteria in Netherton syndrome
This study looks at the bacteria on the skin and in the gut of people with Netherton syndrome, a condition that affects the skin barrier and often causes allergies. It also compares these findings to healthy volunteers to understand how the microbiome might be different.
Paris, Île-de-France RegionAges 10 years+ - NCT06362538Recruiting
Heart health prevention program
This trial tests a program to help prevent heart problems in people who have not had a heart attack or stroke. It is for adults aged 30 and older.
Cotignola, RavennaAges 18–30 - NCT06801184Recruiting
Gut bacteria study for constipation-predominant IBS with methane
This study looks at the gut bacteria in people with irritable bowel syndrome (IBS) who have constipation and produce high levels of methane gas. It aims to understand how methane relates to symptoms and may guide future treatments.
LyonAges 18 years+ - NCT05456893Recruiting
Testing blood and stool markers in active ulcerative colitis treatments
This study checks biomarkers (signals in blood and/or stool) in adults with moderate-to-severe ulcerative colitis. It compares patients starting targeted medicines and looks for marker patterns that may reflect how the disease is behaving.
Nancy, LorraineAges 18 years+ - NCT06616363Recruiting
Brain and nerve connection in POTS and after infection
This study looks at why some people develop POTS (a condition that causes a fast heart rate and dizziness when standing) and if it's linked to how the brain and vagus nerve work together. It also includes people recovering from a serious infection and healthy volunteers for comparison.
Richmond, VirginiaAges 12–21 - NCT07118137Recruiting
Memory loss in Alzheimer's disease study
This study looks at how memory changes over time in people with Alzheimer's or mild memory problems. It uses advanced brain scans to understand the disease better.
Trondheim, TrønderlagAges 55 years+ - NCT01789229Recruiting
Tumor and inflammation sample bank for one specific condition
This study builds a secure “tumor sample bank” using tissue collected from people who currently have one diagnosed condition, either cancer (malignant disease) or an ongoing inflammatory condition. Your samples could help researchers study your disease and develop better treatments in the future.
ViennaAges 18 years+ - NCT04804956Recruiting
Testing gut microbes and metabolites to predict rectal cancer outcomes
This study looks at patterns in the gut microbiome (gut bacteria) and gut chemicals (metabolites) to predict how rectal cancer may do after planned surgery. By understanding these markers, researchers hope to better forecast prognosis and tailor follow-up.
Girona, GironaAges 18–18 - NCT04421846Recruiting
Studying the causes of severe seizures and immune brain swelling
This study looks at what causes severe seizure episodes (“status epilepticus”) and a related immune condition that affects the brain (“dysimmune encephalitis”). The goal is to better understand the disease process, which may guide future care.
ParisAges 2 years+ - NCT06096350Recruiting
Nutrition and recovery in recent stroke patients
This study looks at how nutrition affects recovery in people who had a stroke within the last 6 months. It aims to help improve rehabilitation by checking your nutritional status.
Roma, RMAges 18–90 - NCT06451913RecruitingPhase 4
Probiotic for gut health during Lyme disease antibiotics
This trial tests if a probiotic (Saccharomyces boulardii) can help maintain healthy gut bacteria while you take antibiotics for the early skin rash of Lyme disease (erythema migrans). You'll take amoxicillin for 14 days, plus either the probiotic or a placebo.
LjubljanaAges 18 years+ - NCT02168868Recruiting
Blood tests to find autism-related protein signals
This study looks at blood samples from children (and sometimes parents) to see if certain protein patterns can help identify or better understand autism spectrum disorder. The results could support finding “biomarkers,” which are measurable signs that may guide future research or care.
JerusalemAges 10 months–19 years - NCT04460313Recruiting
Testing bacteria in children’s noses and ears
This study looks at bacteria (especially pneumococcus) in the nose and throat of children. It includes children with ear infections or healthy children, to understand which germs are carried and how they relate to illness.
CréteilAges 6 months–15 years - NCT03905746Recruiting
Study tests microRNA markers in worsened liver cirrhosis
This study looks at microRNA (tiny molecules in blood) to better understand what’s happening during sudden worsening of cirrhosis. It may help doctors recognize and monitor decompensated cirrhosis more accurately.
LyonAges 18 years+ - NCT05322343Recruiting
Study biobank and brain health in people age 55–80
This study collects blood samples to build a biobank and learn how brain health changes with age. Some participants may also do an MRI scan to better understand brain changes and immune response.
Bordeaux, BordeauxAges 55–80 - NCT06941090Recruiting
Stool sample collection for nutrition gut health study
This study asks participants of the NutriNet-Santé health study to provide a stool sample. Researchers want to understand how diet and gut bacteria affect health.
BobignyAges 18 years+ - NCT07313007Recruiting
Gut bacteria chemicals in fatty liver disease
This study looks at whether the natural chemicals made by your gut bacteria from the food you eat could affect liver fat and health. If you have MASLD (a fatty liver condition), researchers want to measure these gut-produced substances to better understand the disease.
Pierre-BéniteAges 18–80 - NCT07237984Recruiting
COCO study for colorectal cancer screening
This trial looks at substances in your body to help find colorectal cancer earlier. It is for people who are already scheduled for a colonoscopy, either because of a positive stool test or cancer symptoms.
HillerødAges 18 years+ - NCT05319067Recruiting
Gut bacteria study in toddlers on long-term reflux antibiotics
This study compares gut bacteria (microbiome) in toddlers who take an antibiotic to prevent urine infections for vesicoureteral reflux, versus other similar children. It may help researchers understand how long-term antibiotic use and reflux affect gut health and future risk.
MontpellierAges 1–3
What Stool samples is being studied for
Conditions with recruiting Stool samples studies.
Common questions
- Are there clinical trials studying Stool samples?
- Yes. Clin2 currently lists 64 recruiting studies that include Stool samples, drawn from the U.S. registry and rewritten for real people so you can see what each is testing and who it's for.
- How do I know if I qualify for a Stool samples trial?
- Each study lists its own eligibility criteria — rules about condition, age, and prior treatments. On every Clin2 trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Is Stool samples an approved treatment?
- A drug being studied in a trial may be investigational (still being tested) or already approved and being studied for a new use. Each study page explains what phase it's in. Clin2 does not provide medical advice — talk with your doctor about whether Stool samples or a specific trial is right for you.
Related treatments
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. A drug appearing here is being studied in a trial and may be investigational. Talk with your doctor about whether a specific treatment or trial is right for you.