Treatment
Blood collection clinical trials
We’re tracking 338 recruiting studies that include Blood collection, each written for real people, not researchers, below.
Recruiting studies
- NCT06852755Recruiting
Finding markers to track menopause in women
This study looks for biological signs that can help monitor menopause. It may help women understand their menopause transition better.
New Taipei CityAges 20 years+ - NCT07046260Recruiting
Blood test study for early cancer detection
This study is testing a new blood test to help doctors find cancer earlier. If you are 45 or older and have symptoms that might be cancer, or were recently diagnosed with cancer, you may be able to join.
Coronado, CaliforniaAges 45 years+ - NCT07019857Recruiting
Thymus removal and immunity in infant heart surgery
This study looks at how removing the thymus gland during infant heart surgery affects the immune system. It compares babies who have their thymus removed with those who have heart surgery without removing it, and with babies having other types of surgery.
NantesAges Up to 6 months - NCT05076500Recruiting
How radiotherapy changes a tumor’s immune response
This study looks at how a tumor’s immune system responds when you receive radiotherapy. It involves taking a planned pre-treatment biopsy so researchers can study immune and tumor changes and see if radiotherapy affects them.
ManchesterAges 18 years+ - NCT06942104RecruitingPhase 1
New imaging agent for advanced solid tumors
This trial tests a new imaging agent (18F-TRX) to see if it can better detect cancer spread in people with advanced solid tumors. It is designed for patients with specific cancers like high-grade brain tumors, advanced kidney cancer, or prostate cancer that has stopped responding to hormone therapy.
San Francisco, CaliforniaAges 18 years+ - NCT06718127Recruiting
Study of immune response to yellow fever vaccine
This study looks at how your body's immune system responds to the yellow fever vaccine. It may help researchers understand how well the vaccine protects people.
ParisAges 18–65 - NCT06451744Recruiting
Study of biomarkers in lichen planus
This study looks at people with lichen planus (a rash that can affect skin, mouth, or genitals) to find markers in cells and blood that may help understand the disease. If you have a new diagnosis or a flare-up, and you are not on strong immune-suppressing medicine, you may be able to join.
BesançonAges 18 years+ - NCT06854848Recruiting
Granulomatosis patient study with biological samples
This study collects medical data and biological samples from people diagnosed with systemic granulomatosis (a condition where tiny clumps of immune cells form in organs) to better understand the disease. It may help develop better treatments in the future.
BordeauxAges 18 years+ - NCT06694766Recruiting
Yellow Fever Vaccine Safety and Immune Response in Pregnancy
This study gathers safety and antibody information from women who received their first yellow fever vaccine either during pregnancy or outside of pregnancy. It aims to better understand how the vaccine affects pregnant women and their babies.
ParisAges 18 years+ - NCT06695494Recruiting
Genomic testing for cancer of unknown primary
This trial is for people with cancer of unknown primary (CUP), meaning cancer that started in an unknown place in the body. It aims to use advanced genomic testing (looking at your tumor's DNA) on your stored tumor sample and blood to find clues about where the cancer began and possible treatment options.
Manchester, Greater ManchesterAges 16 years+ - NCT06650527Recruiting
Empathy training for dementia caregivers
This study tests a cognitive empathy training program for people caring for a family member with dementia. The training is designed to help caregivers better understand their loved one's perspective and reduce stress. You may benefit if you live with the person you care for and feel burdened by your caregiving role.
Atlanta, GeorgiaAges 50 years+ - NCT06636318Recruiting
Immune changes during 24-hour surgery call
This study looks at how being on call for 24 hours affects the immune system of surgery residents. The goal is to see if these long shifts change how the body fights infection.
Chicago, IllinoisAges 18 years+ - NCT06474104Recruiting
Blood and skin sample collection for mitochondrial disease
This study collects blood and skin samples from people with primary mitochondrial disease and from healthy volunteers. The samples will help researchers better understand these diseases and develop future treatments.
Ramat Gan, IsraelAges 3–85 - NCT06470997Recruiting
Biomarkers for hepatitis from immunotherapy
This study looks for certain markers in the blood that can help diagnose liver inflammation caused by immunotherapy. It aims to better understand this side effect and how to treat it.
Montpellier, FranceAges 18 years+ - 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 - NCT04280510Recruiting
Study of immune-related gut illnesses in adults
This study looks at adults with immune-related stomach and intestine problems to better understand what may cause them. If you qualify, you can share information and consent to help researchers learn how these conditions work.
CréteilAges 18 years+ - NCT04925349Recruiting
Study blood immune patterns in several rare brain diseases
This study looks at immune cells in blood to better understand rare brain conditions caused by genetic changes. It may help researchers understand why symptoms happen and how the immune system is involved.
Le Kremlin-BicêtreAges 1.3 years–60 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+ - NCT05078957Recruiting
Study gut microbiome in older adults with well-controlled HIV
This trial studies how the bacteria in your gut (“microbiome”) relate to frailty (weakness/low physical resilience) in people with HIV who are stably doing well on treatment. It may help researchers understand why some people become frail and how the gut may play a role.
MarseilleAges 55 years+ - NCT06046651Recruiting
Blood sample collection for lab research
This study collects blood samples from healthy adults to help researchers learn more about how to run lab tests. It involves one visit or at-home collection and might help future medical research.
San Francisco, CaliforniaAges 18 years+ - NCT05672615Recruiting
Mood changes during bladder cancer treatment with BCG
This study looks at how bladder cancer treatment with BCG may affect mood and emotional well-being. It may help doctors understand which patients experience mood changes during care.
Washington D.C., District of ColumbiaAges 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+ - NCT05588154Recruiting
Donate blood and other samples to study blood cancers
This study asks healthy adults to provide blood, bone marrow (if needed), skin, saliva, and stool samples. Scientists use these samples to compare patterns related to myeloid (bone-marrow) blood cancers, which may help future research and tests.
Bethesda, MarylandAges 18–120 - NCT03124303Recruiting
Testing ways to measure and prevent delirium after surgery
This study looks at interventions to help with “postoperative delirium,” a sudden confusion that can happen after surgery, and uses brain measures like EEG and optional MRI. It may help doctors identify who is at risk and learn what approaches are most helpful after surgery.
Madison, WisconsinAges 60 years+
Common questions
- Are there clinical trials studying Blood collection?
- Yes. Clin2 currently lists 338 recruiting studies that include Blood 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 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 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 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.