Clinical trials
Host and Microbiome clinical trials
Below are recruiting host and microbiome clinical trials, each written for real people, not researchers. We’re tracking 14 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03298334RecruitingPhase 1/Phase 2
Testing vaginal bacteria transfer to newborns after C-section
This study looks at whether they can safely place “healthy vaginal bacteria” from the mother into the newborn after a scheduled C-section, and whether it improves the baby’s health. It only enrolls certain mothers and babies based on infection testing and other health factors.
Falls Church, VirginiaAges birth–50 years - NCT06649201Recruiting
Study of vaginal health after stem cell transplant
This study looks at how stem cell transplants affect the vagina, especially if you develop a condition called graft-versus-host disease (GVHD). Researchers will examine the vagina and test its natural germs (microbiome) to better understand and possibly improve treatment.
Cleveland, OhioAges 18–70 - NCT05334888Recruiting
Study how sex and gut bacteria relate to heart risk
This study follows people over time to understand how sex-related factors and gut bacteria may affect heart and blood-vessel risk. It may help researchers identify who could benefit from earlier prevention, based on personal risk patterns.
BerlinAges 18–50 - NCT05656378Recruiting
Storing samples to study how the body interacts with microbes
This study creates a storage bank of biological samples like blood, stool, and tissue. Researchers will use these samples to learn how the body interacts with the natural microbes that live in and on us, which may help improve treatments for many diseases.
Bethesda, MarylandAges Any age - NCT04579900Recruiting
Study how gut microbes affect type 2 diabetes risk
This study looks at how differences in gut microbes may relate to risk of developing type 2 diabetes. It may help researchers understand who is more likely to develop diabetes, and why.
Québec, QuebecAges 18–60 - NCT06602934Recruiting
Pneumonia, heart health, and your body's germs
This study looks at how pneumonia affects the long-term health of your heart and lungs by studying the germs that live in your body. It may help doctors understand why some people get worse and how to better protect your heart after a serious infection.
AngersAges 18–80 - NCT03650829Recruiting
IVF baby study for pregnancies in Guangzhou
This study looks at babies born from IVF (assisted reproductive technology) pregnancies. It may help the hospital better understand outcomes for families who plan to deliver there and stay in Guangzhou for years.
Guangzhou, GuangdongAges Up to 18 years - NCT03331133Recruiting
Study of twins born in Guangzhou
This study focuses on twins who were born at Guangzhou Women and Children’s Medical Center. It aims to use pregnancy and baseline information to learn about twin outcomes and care, and it may help local doctors improve guidance for families in Guangzhou.
Guangzhou, GuangdongAges Up to 18 years - NCT03633162Recruiting
Study about maternal grandmothers’ effects on babies
This study looks at whether what maternal grandmothers know, do, or influence during a pregnancy is linked to outcomes for grandchildren. You may be included if your grandchild was born at the study hospital and key pregnancy details are available.
Guangzhou, GuangdongAges 36–100 - NCT03668327Recruiting
Study of babies born early in Guangzhou
This study follows babies who were born early (before 37 weeks) to learn more about health outcomes over time. It may help doctors better understand and support families after an early birth.
GuangzhouAges Up to 18 years - NCT04529889Recruiting
Study of gestational diabetes during pregnancy and child outcomes
This study follows pregnant people with gestational diabetes to see how it affects mothers and babies over time. The team may use this information to better understand risks and care for both you and your child.
Guangzhou, GuangdongAges Any age - NCT06114784Recruiting
Study of microbiome and severe pneumonia with breathing support
This study looks at how bacteria in your body (microbiome) affect how sick you get from severe pneumonia. It may help doctors find better ways to treat people with serious lung infections who need breathing support.
Hangzhou, ZhejiangAges 18 years+ - NCT06926166Recruiting
Genes and germs in early life study
This study looks at how genes and tiny organisms in your body (microbiota) affect early childhood development. It involves storing blood and stool samples from you and your child to help researchers learn more.
GuangzhouAges Any age - NCT02526901Recruiting
Pregnancy cohort study for women in Guangzhou
This study follows pregnant women from early pregnancy to learn about pregnancy and child health. You may be asked to share health information so researchers can better understand outcomes for babies born in Guangzhou.
Guangzhou, GuangdongAges Any age
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Common questions
- Are there clinical trials for host and microbiome?
- Yes. Clin2 currently lists 14 recruiting host and microbiome 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 host and microbiome 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 host and microbiome 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.