Treatment
Blood sample collection clinical trials
We’re tracking 270 recruiting studies that include Blood sample collection, each written for real people, not researchers, below.
Recruiting studies
- NCT05449119Recruiting
Study links gut health, diet, and thinking and movement in seniors
This study looks at how differences in gut bacteria and nutrition may relate to changes in thinking and movement in people over 75 who have a reduced appetite (“small eaters”). It may help doctors better understand what could be contributing to these problems and how nutrition might play a role.
DijonAges 75 years+ - NCT04392401Recruiting
Study immune changes in adults during ICU stay for COVID-19
This study looks at how your immune system responds while you’re in the intensive care unit (ICU) for COVID-19. Researchers will collect samples early in the ICU stay to better understand immune changes during the illness.
BronAges 18 years+ - NCT07743021Recruiting
Blood sample study for better health screening
This study collects blood samples and health information over time to improve early detection of diseases. It may help researchers find ways to prevent serious conditions.
BalatonfüredAges 40 years+ - NCT05082961Recruiting
Blood immune markers and brain radiation after head/neck surgery
This study looks at immune system signals in your blood during and after postoperative radiation therapy for certain head and neck cancers involving the brain or skull base. Researchers want to see whether these “immune markers” relate to treatment response or side effects.
CaenAges 18 years+ - NCT05111210Recruiting
IL-23/IL-17 psoriasis treatment study to understand skin immune changes
This study looks at what’s happening inside the body in people with plaque psoriasis who start certain biologic medicines that target the IL-23/IL-17 immune pathway. It may help explain why these treatments work and what body changes are linked to response.
Paris, Île-de-France RegionAges 18 years+ - NCT05303337Recruiting
Study of gut and HIV changes after switching to long-acting shots
This trial compares how HIV “reservoirs,” inflammation, and the gut microbiome change when people switch from daily HIV pills to long-acting injectable treatment. It may help you and your team understand what to expect with the switch and how your body responds.
MarseilleAges 18 years+ - NCT05639413Recruiting
Study of biology in people with BRAF V600E metastatic colon cancer
This study follows people with BRAF V600E–positive metastatic colorectal (colon) cancer to better understand how the cancer’s biology changes over time. It may help researchers learn which features to watch and how this cancer behaves after initial treatment.
AvignonAges 18 years+ - NCT05791162Recruiting
Looking at immune cell ratios in IgA kidney disease
This study looks at how certain immune cells in blood relate to IgA nephropathy, a kidney condition. It may help doctors understand which patients are likely to do better and guide future care.
BesançonAges 18 years+ - NCT06387017Recruiting
Can blood tests improve lung cancer screening in smokers with artery disease?
This study looks at whether certain blood tests can help find lung cancer early in people who have smoked for a long time and also have artery disease. The goal is to see if adding these tests to current screening methods can better identify those at highest risk.
MarseilleAges 45–80 - NCT06434207Recruiting
Heart defect study in newborns to understand blood clots
This study looks at tiny particles from cells in newborns with heart defects to understand blood clot risks. It aims to find ways to prevent clots after heart surgery.
Boston, MassachusettsAges 1 day–1 week - NCT06906016Recruiting
New blood tests for hepatitis B
This study looks at new blood tests (biomarkers) to better understand chronic hepatitis B and how it affects treatment decisions. It may help doctors find better ways to manage your condition.
Créteil, CréteilAges 18 years+ - NCT07199998Recruiting
How tampons and cups affect your vaginal health
This study looks at how tampons and menstrual cups affect your body's natural defenses and the healthy bacteria in your vagina. You might join if you are a healthy woman between 18 and 49 who has regular periods and uses or is willing to use these products.
Paris, Île-de-France RegionAges 18–49 - NCT07435467Recruiting
Blood tests for brain health in older hospital patients
This trial looks at how blood biomarkers relate to thinking, daily function, and survival in older adults, including those with neurological issues or dementia. It aims to improve understanding and care for hospitalized seniors.
AnconaAges 65 years+ - NCT04970459Recruiting
Collecting samples for Marfan and related conditions
This study collects biological samples and related health information for people with Marfan syndrome or similar inherited conditions. It helps researchers better understand these conditions and may lead to improved care for patients in the future.
ToulouseAges 3–99 - NCT04690972Recruiting
Collection of blood and tissue samples for liver disease research
This study builds a research library of biological samples (like tissue and blood) from people with chronic liver disease. It aims to create better lab and preclinical models of tumors and long-term liver problems, which may help future treatments.
StrasbourgAges 18 years+ - NCT05410977Recruiting
Testing blood and stool for colon cancer in Lynch syndrome
This study collects blood and stool samples to see how well they can detect colorectal cancer or advanced growths in people with Lynch syndrome (an inherited colon cancer risk) or suspected Lynch syndrome. It may help find cancer or precancer earlier, which can improve next-step decisions.
Scottsdale, ArizonaAges 18 years+ - NCT04377854Recruiting
Checking whether BNP predicts outcomes in advanced heart failure
This study looks at whether a blood test called BNP can help predict what happens over time in people being evaluated for advanced heart failure treatment. It may help doctors better plan care and follow-up for patients long-term.
Copenhagen, DKAges 18 years+ - NCT05370079Recruiting
Control group for people with specific serious illnesses
This trial includes a “control” group of people with certain diseases to compare outcomes against another group. If you qualify, you may receive the standard approach used in usual care rather than the experimental treatment.
BronAges 18 years+ - NCT05663502Recruiting
Donate blood and tissue samples for HIV-related cancer research
This study collects blood and tissue samples to help researchers learn more about cancers related to HIV/AIDS. You may be able to join if you’re 18+ and have HIV and a cancer diagnosis, or (if HIV-negative) a certain cancer that is closely linked to AIDS-related cancers.
La Jolla, CaliforniaAges 18 years+ - NCT05899387Recruiting
Study fluid after breast surgery
This study looks at a problem called seroma, which is fluid buildup, after certain breast surgeries. It compares different situations where implants or tissue expanders are used, to better understand what to expect and how to manage it.
Augsburg, BavariaAges 18 years+ - NCT05984875Recruiting
Immune system study for ovarian cancer
This study looks at how the immune system works in people with epithelial ovarian cancer. It aims to understand the immune landscape around the tumor, which could lead to better treatments in the future.
BellinzonaAges 18 years+ - NCT06042387Recruiting
Genome study across diverse populations with IBD
This study looks at the genes of people with inflammatory bowel disease (IBD) and healthy volunteers to understand why IBD affects different populations. You may join if you have Crohn's disease, ulcerative colitis, or undetermined IBD, or if you are a healthy person without any IBD history.
Toronto, OntarioAges Any age - NCT06194669Recruiting
VHL disease and kidney tumor risk study
This study looks at how early changes in kidney cells can lead to tumors in people with VHL disease. It may help understand why some people develop kidney cancer and how to prevent it.
MilanAges 18 years+ - NCT06896162Recruiting
Genetic test to guide first or second treatment for advanced cancer
This study looks at whether using a detailed genetic test of your tumor can help pick the best first or second treatment for advanced lung, colon, breast, or bladder cancer. The goal is to see if this personalized approach helps people live longer.
Chapel Hill, North CarolinaAges 18 years+
Common questions
- Are there clinical trials studying Blood sample collection?
- Yes. Clin2 currently lists 270 recruiting studies that include Blood sample collection, 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 Blood sample collection 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 Blood sample collection 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 Blood sample collection 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.