Clinical trials
Allergy clinical trials
Below are recruiting allergy clinical trials, each written for real people, not researchers. We’re tracking 323 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT00867269Recruiting
Study of causes and progression of low CD4 blood cells
This study looks for what causes and how idiopathic low CD4 cells happen over time, using blood and tissue samples. It may help doctors learn why this occurs and how to better track people with it.
Bethesda, MarylandAges 18 years+ - NCT01200953Recruiting
Study care after contact with serious infectious germs
This study helps doctors manage people who may have been exposed to, infected with, or are recovering from dangerous infectious germs (including emerging outbreaks). It may help by setting safe evaluation and care steps after these high-risk exposures.
Bethesda, MarylandAges 3–99 - NCT00090662Recruiting
Healthy Volunteer Sample Collection for Medical Research
This research study collects blood, urine, and other samples from healthy volunteers to support medical research. Depending on the type of sample, you may donate blood, provide skin samples, or participate in other non-invasive procedures. Your samples help scientists understand health and develop new treatments.
Bethesda, MarylandAges 18–85 - NCT01212003Recruiting
Study of how tuberculosis develops over time
This study follows people with suspected or confirmed tuberculosis (TB), whether they have inactive “latent” TB or active TB. It helps researchers better understand TB’s natural course and may improve future testing and care by allowing collection and storage of samples.
Bethesda, MarylandAges 2–100 - NCT00091871Recruiting
Understanding familial high eosinophil disease in families
This study follows families with a genetic condition that causes high levels of white blood cells called eosinophils. Researchers want to understand how the disease develops and changes over time to help predict who may get worse and how to treat it better.
Bethesda, MarylandAges 1–100 - NCT00794352Recruiting
Studying immune brain and nerve conditions with tests and samples
This study looks at how immune-related brain or spinal cord illness shows up using exams, MRI scans, and sometimes a spinal fluid test (lumbar puncture), plus collected blood and other samples. It may help researchers better understand these conditions and improve future diagnosis or treatments.
Bethesda, MarylandAges 1 month–99 years - NCT01306019RecruitingPhase 1/Phase 2
Gene therapy for children with severe immune deficiency (XSCID)
This trial tests a one-time gene therapy approach to help children with X-linked SCID (a serious inherited immune disorder) make better immune cells. It’s for people who don’t have a fully matched sibling donor and need long-term follow-up after treatment.
Bethesda, MarylandAges 2–50 - NCT02190266Recruiting
Study genetics and cause of hard-to-treat Valley fever
This study looks at why “Valley fever” is difficult to treat or has spread beyond the lungs, and how a person’s genetics may be involved. You may be asked for blood or other samples for genetic testing and for storing samples for future research.
Bethesda, MarylandAges 2–100 - NCT02147405Recruiting
PET scans and lymph node checks for HIV immune rebound
This study looks at people with HIV who either have not started HIV medicines yet or who recently started/changed them and may develop immune rebound (IRIS). It uses blood tests and optional PET/CT scans and lymph node biopsies to understand what’s happening in the body and to guide care.
Bethesda, MarylandAges 18–100 - NCT02639299Recruiting
Screening healthy adults for malaria vaccines and drug studies
This study screens healthy adults to see who can join future malaria vaccine or investigational malaria drug studies, including a controlled malaria exposure. It may help researchers test safer vaccines/drugs, but participation requires good health and strict medical eligibility.
Bethesda, MarylandAges 18–50 - NCT02734277Recruiting
Extending a past Type 1 diabetes immune study
This study is for people who already took part in an earlier immune-tolerance program for Type 1 diabetes. It tests whether continuing follow-up and assessments can be done safely and may help learn more about long-term immune effects of treatment.
San Francisco, CaliforniaAges 8–35 - NCT03109288RecruitingPhase 1/Phase 2
Biomarker-guided combination treatment for residual multiple sclerosis activity
This early-phase study tests combination treatments for multiple sclerosis (MS) based on lab “biomarkers” found in the spinal fluid. It aims to reduce ongoing MS activity and help determine which treatment combinations may work best for different people.
Bethesda, MarylandAges 18–120 - NCT02511002Enrolling by invitation
Long-term follow-up after an influenza challenge study
This study keeps track of how your body’s immune responses change over time after an influenza exposure. Researchers may use stored blood samples to study specific antibody levels, which could help improve future flu vaccines or treatments.
Bethesda, MarylandAges 18–120 - NCT01186913Enrolling by invitation
Natural history study for severe combined immune deficiency (SCID)
This study follows children and adults with SCID and related immune disorders to understand how the illness behaves over time. It also helps researchers learn which testing results and genetic types of SCID match different treatment plans.
Birmingham, AlabamaAges Any age - NCT00895271Enrolling by invitation
Making lab cell lines from skin biopsies in immune disorders
This study creates special lab cell lines from skin (or nasal) samples from people with immune system disorders and certain family members. It’s meant to help researchers build tools to better study these conditions using patient cells.
Bethesda, MarylandAges 2–85 - NCT00004317RecruitingPhase 4
Treating Congenital Toxoplasmosis With Three Medications
This study tests a combination of three medications (pyrimethamine, sulfadiazine, and leucovorin) to treat toxoplasmosis—a parasitic infection passed from mother to baby during pregnancy. The goal is to see if early treatment prevents serious complications in infected infants.
Chicago, IllinoisAges Any age - NCT00001351Enrolling by invitation
Study of inflammatory disorders and immune system dysfunction
This is a long-term study that evaluates and follows patients with inflammatory conditions related to infections or immune system problems. Researchers at the National Institutes of Health want to understand these conditions better and may ask you to participate in related studies.
Bethesda, MarylandAges 2 years+ - NCT07402200Recruiting
Indoor air pollutants and child health study
This study looks at how indoor air pollution affects children's health. It compares children with allergies or asthma to those without, to see if air quality plays a role.
MontpellierAges 8–12 - NCT07404956Recruiting
Comparing surgical and N95 masks for operating room nurses
This study checks how wearing a surgical mask or an N95 mask affects the air quality during surgery (called surgical smoke). It is for operating room nurses who work with surgical smoke regularly.
Bartın, BartınAges 18 years+ - NCT07416201Recruiting
Study of Immune System Aging in Down Syndrome
This study is looking at how the immune system changes over time in people with Down syndrome, and how it may be affected by removal of the thymus gland. The goal is to understand why people with Down syndrome may age faster or have different immune health.
Bethesda, MarylandAges 1–120 - NCT07419243RecruitingPhase 1/Phase 2
Tolerance in milk and egg allergy in children
This study watches how milk and egg allergies change naturally over time or after oral immunotherapy (OIT) in children. It helps researchers understand how the immune system adapts, aiming to improve treatment for food allergies.
Madrid, MadridAges 4–17 - NCT06413004Recruiting
IBS and immune reactions to bacteria in the gut
This study tests whether some IBS symptoms are linked to a certain gut bacteria and an immune reaction. It aims to understand the cause of IBS to find better treatments.
GothenburgAges 18–70 - NCT07490587RecruitingPhase 2
Probiotic study for healthy infant growth and allergy prevention
This trial tests a probiotic supplement (Bifidobacterium animalis subsp. lactis XLTG11) to see if it helps infants grow better and have fewer allergies. It is for healthy babies up to 3 years old who are at higher risk for allergies.
Pudong, Shanghai MunicipalityAges birth–3 years - NCT07549503RecruitingPhase 2
Liver Transplant Immune Changes Study
This research study tracks early signs of immune system changes in children who received a liver transplant 3–7 years ago and are doing well. By studying blood and liver samples, researchers hope to better understand how to prevent rejection and improve long-term transplant survival.
San Francisco, CaliforniaAges 3–13
Hear when a new Allergy trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for allergy?
- Yes. Clin2 currently lists 323 recruiting allergy 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 allergy 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 allergy 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.