National Institute Of Allergy And Infectious Diseases (niaid)

This study tests whether adding certain drugs to a stem cell transplant can cure chronic granulomatous disease (CGD), a condition that weakens the immune system. About 50 people aged 4 to 65 with CGD will receive donor stem cells after a special drug and radiation regimen. The go…

This study tests an experimental flu vaccine called BPL-1357, given as a shot or nasal spray, to see if it is safe and can protect against multiple flu types. About 129 healthy adults aged 18-55 will receive the vaccine or a placebo, then be exposed to a flu virus in a controlled…

This early-stage trial is testing a new COVID-19 booster vaccine called OCU500, which is given as a nasal spray or inhaled mist instead of a shot. The study involves 80 healthy adults aged 18-64 who have already been vaccinated against COVID-19. Researchers are checking if the va…

This early-stage trial is testing a new HIV vaccine booster called VRIPRO, given with an immune-boosting adjuvant, in 40 healthy adults aged 18-60 who previously received an HIV vaccine in the HVTN 706 study. Participants will get three shots over 24 weeks. The main goals are to …

This phase 2 trial tests a CMV vaccine (CMV-MVA Triplex) given before a liver transplant to see if it reduces the need for antiviral drugs after surgery. The study enrolls 416 CMV-negative adults awaiting a liver transplant from a CMV-positive donor. Participants receive two vacc…

This early-stage trial tests an experimental flu vaccine called FluMos-v2, with or without an adjuvant (ALFQ), in 45 healthy adults aged 18-50. Participants receive two shots four months apart and are followed for 15 months. The goal is to check safety and how well the vaccine tr…

This early-stage trial will test two experimental mRNA vaccines designed to teach the immune system to make antibodies that target HIV. About 42 adults with well-controlled HIV will receive the vaccines and then temporarily pause their regular HIV medication under close monitorin…

This early-stage study tests a new flu vaccine (STEMos1) in 56 healthy adults aged 18-50. Half of the participants get the vaccine with an adjuvant (a substance that boosts the immune response), and half get it without. The goal is to check safety and how well the vaccine trigger…

This study tests two experimental vaccines against Epstein-Barr virus (EBV), which causes mono and is linked to cancers. Researchers will give 750 healthy adults aged 18-29 three shots over several months to check for side effects and immune response. The goal is to find a safe v…

This study tests the Shingrix vaccine in people with HIV and healthy volunteers to see how well it boosts immunity against shingles. Participants receive two shots two months apart and are followed for a year. The goal is to understand if the vaccine works safely in those with di…

This study aims to develop a vaccine to prevent malaria during pregnancy. Researchers will test potential vaccines in the lab using blood samples from pregnant women aged 15-25 in Mali. The goal is to see if these vaccines can block the malaria parasite from attaching to the plac…

This early-stage trial tests two experimental mRNA vaccines designed to train the immune system to make special antibodies that could block HIV. The study involves 40 healthy adults without HIV who will receive the vaccines and be monitored for safety and immune responses. It is …

This study tests three new HIV vaccines in healthy adults aged 18-49 to see if they are safe and trigger an immune response. Two vaccines are given as nasal sprays, followed by a booster shot. The trial also monitors household and intimate contacts to check if the vaccine viruses…

This study compares a high-dose flu vaccine to the standard dose in 312 children aged 3-17 who have received a kidney, heart, or liver transplant within the past two years. The goal is to see if the high-dose vaccine triggers a stronger immune response and is just as safe. Partic…

This Phase 1 trial tests a two-part HIV vaccine regimen in 42 healthy adults without HIV. The first shot primes the immune system, and later booster shots aim to mature antibody-producing cells. The main goal is to see if the regimen is safe and whether it triggers a specific imm…

This early study tests baricitinib, a drug already approved for other immune conditions, in 20 people with Job syndrome who also have lupus-like disease or eczema. Participants take the pill daily for 6 months. The main goal is to see if it is safe and tolerable, while also check…

This Phase 2 trial tests whether adding belimumab to standard rituximab treatment helps more people with primary membranous nephropathy achieve remission. The study enrolls 58 adults with confirmed disease. Belimumab targets new immune cells, while rituximab depletes existing one…

This study tests a drug called ublituximab for people with a rare autoimmune disease that causes severe muscle weakness. The goal is to see if adding this drug to standard treatment improves muscle strength and function more than standard treatment alone. About 30 adults with ear…

This study looks at whether children who received a liver transplant before age 7 can safely cut their anti-rejection drugs by 50%. One hundred kids will slowly reduce their medication over 18 months, with frequent blood tests and liver biopsies to check for rejection. The goal i…

This study tests whether liver transplant patients can safely switch from a standard anti-rejection drug (tacrolimus) to a different drug (everolimus) to protect their kidneys. About 340 adults who received their first liver transplant will be followed for 18-20 months. The goal …

This study tests an experimental drug called VIB4920 in people with active lupus nephritis, a serious kidney complication of lupus. About 74 adults will receive either VIB4920 or a placebo, along with standard medications, to see if the drug helps improve kidney function. The goa…

This Phase 2 trial tests whether adding tezepelumab (a biologic drug) to peanut oral immunotherapy (OIT) helps people with peanut allergy tolerate more peanut without symptoms. 62 participants aged 12 to 55 will first receive tezepelumab or placebo alone, then both groups undergo…

This study compares a stem cell transplant (using a person's own cells) against the best available medications for people with relapsing multiple sclerosis that hasn't responded to treatment. About 156 participants will be randomly assigned to one of the two approaches and follow…

This study tests whether a combination of belatacept and sirolimus works better than the standard drugs tacrolimus and MMF in children aged 13-20 who receive a kidney transplant. The goal is to reduce the risk of organ rejection and protect kidney function. Participants are rando…

This study at the National Institutes of Health evaluates and treats people aged 3 and older with known or suspected parasitic infections, such as malaria, intestinal worms, and others. Participants receive standard medical care, not experimental treatments. The goal is to monito…

This study tests whether daratumumab, a drug used for certain cancers, is safe for people with antiphospholipid syndrome (APS), an autoimmune disorder that raises blood clot risk. Up to 22 adults will receive weekly infusions for 8 weeks at different doses. The main goal is to ch…

This study tests new combinations of drugs for adults with lung tuberculosis (TB). The goal is to see if these new regimens work faster and are safer than the current standard treatment. About 315 participants will receive either an experimental drug combo or the usual care for 8…

This study tests whether giving very early and intensive antiretroviral therapy, plus an antibody, can help infants with HIV achieve remission—meaning the virus stays undetectable even after stopping treatment. Researchers will enroll about 1,120 infants and follow them for safet…

This phase 2 trial tests a drug called emapalumab in 10 people with APECED, a rare disease where the immune system attacks the body. The drug aims to reduce gut inflammation (enteritis) that causes severe symptoms. Participants receive 7 IV doses over 6 months, and researchers tr…

This study tests a gene therapy for people aged 2 to 50 with X-linked severe combined immunodeficiency (SCID-X1), a condition that leaves them without a working immune system. Participants receive their own blood stem cells that are genetically corrected in a lab, then infused ba…

This study tests a drug called soquelitinib in 15 people aged 16 and older with autoimmune lymphoproliferative syndrome (ALPS). The goal is to see if the drug can shrink an enlarged spleen or lymph nodes and improve low blood cell counts. Participants take the pill twice daily fo…

This early-stage trial tests a new approach for chronic granulomatous disease (CGD), a genetic condition that leaves people vulnerable to severe infections. Researchers take a participant's own white blood cells, use mRNA to correct the genetic defect, and infuse the cells back. …

This early-stage trial is testing whether lab-made antibodies that target HIV are safe and how long they stay in the body. About 83 healthy adults without HIV will receive the antibodies by vein or under the skin, alone or in combination. The goal is to find the right dose and ch…

This study tests if the drug vorinostat is safe and can help people with moderate-to-severe Crohn's disease by reducing gut inflammation. Participants who respond well may then receive a maintenance treatment with ustekinumab for up to two years. The goal is to control symptoms a…

This study tests whether changes in spinal fluid biomarkers can predict which drug or drug combination works best for people with progressive multiple sclerosis (MS). Participants will take one or two of five drugs (cilostazol, leucovorin, pirfenidone, dantrolene, or pioglitazone…

This early-stage study tests whether belimumab is safe for people with idiopathic CD4 lymphopenia (ICL), a rare condition causing low CD4 white blood cells and increased infection risk. About 20 adults aged 18-70 with ICL and autoantibodies will receive 8 doses of belimumab intra…

This study looks at whether people with HIV who receive a liver transplant from a donor who also had HIV face a higher risk of infections or cancer compared to those who receive a liver from a donor without HIV. The research will follow adults with HIV who need a liver or a combi…

This study tests whether adding dupilumab to standard treatment can help people with hypereosinophilic syndrome (HES) who still have symptoms despite current biologic therapy. About 30 adults will receive dupilumab injections for up to 48 weeks while continuing their usual medica…

This study tests whether giving two powerful HIV-fighting antibodies along with standard HIV medication (ART) to people diagnosed very early with HIV can help them control the virus without daily pills later. 48 adults with acute HIV infection will receive either the antibodies o…

This study is testing the safety and drug levels of glecaprevir/pibrentasvir, a hepatitis C treatment, in 30 pregnant women with or without HIV. The goal is to see how the drug works during pregnancy and to monitor the health of both mothers and their infants up to 10 weeks after…

This early-stage trial tests a new gene-editing approach for X-linked chronic granulomatous disease (X-CGD), a rare immune disorder. Researchers will collect stem cells from 10 adult male participants, use base editing to correct the genetic mutation, and return the cells after m…

This small Phase 2 trial tests whether alendronate, a drug used for bone health, can reduce the hidden HIV reservoir in people already on antiretroviral therapy. About 30 participants will receive either alendronate or a placebo, and researchers will measure changes in HIV DNA an…

This study looks at whether people with giant cell arteritis (GCA) who are in remission can safely stop or lower their dose of tocilizumab (Actemra). About 78 adults who have been on high-dose tocilizumab for at least a year and off steroids for three months will either stop the …

This study tests whether the drug belumosudil can prevent chronic lung allograft dysfunction (CLAD) in people who have had a lung transplant and show signs of rejection or inflammation on a biopsy. About 234 participants will receive either belumosudil or a placebo for 52 weeks, …

This study tests whether adding tocilizumab to standard anti-rejection drugs can prevent chronic lung allograft dysfunction (CLAD) in 350 lung transplant recipients. Participants receive either tocilizumab or a placebo for 20 weeks, and researchers track CLAD, re-transplant listi…

This early-stage trial tests two drugs, carfilzomib and belatacept, in 25 kidney transplant recipients who have a type of rejection called antibody-mediated rejection. The goal is to see if the combination is safe and can reduce harmful antibodies or improve kidney function over …

This study tests whether dasatinib, a drug used for leukemia, can reduce the hidden HIV reservoir in people whose virus is already suppressed by antiretroviral therapy (ART). Fourteen adults on ART for at least 4 years will be randomly assigned to take dasatinib or a placebo dail…

This study tests a one-time gene therapy for a single person with X-linked Hyper-IgM syndrome, a rare immune disorder caused by a faulty CD40L gene. The participant's own stem cells and T cells are collected, edited in a lab to fix the gene mutation, and then infused back after c…

This study tests an experimental drug called NT-I7 in people with idiopathic CD4 lymphopenia (ICL), a condition where low CD4 immune cells lead to severe infections and other diseases. The goal is to see if NT-I7 can safely increase CD4 cell counts. About 60 adults aged 18–75 wil…

This phase 2 trial tests whether a drug called belatacept, combined with a gradual reduction of tacrolimus, can safely prevent organ rejection in heart transplant recipients while protecting kidney function. About 66 adults who receive a new heart will be randomly assigned to eit…

This study tests whether adding the drug lenacapavir to standard HIV treatment can reduce the hidden HIV reservoirs that remain in the body. About 50 adults with well-controlled HIV will either continue their usual therapy or receive lenacapavir injections plus pills. Researchers…

This early-stage trial is testing whether a gel containing beneficial bacteria (Staphylococcus hominis A9) can safely control eczema flares. About 86 adults and children aged 6 and older will apply the gel or a placebo twice daily for 14 weeks, along with a short course of steroi…

This phase 2 trial tests whether ruxolitinib, a drug already approved for certain blood disorders, can help regrow hair in people with APECED, a rare immune condition that often causes severe alopecia areata. About 70 participants aged 12 to 75 will take the pill twice daily for …

This study compares a 6-month treatment using high doses of four antibiotics against the standard 9-month therapy for tuberculous meningitis, a serious brain infection. About 330 adults and teens without HIV will take part. The goal is to see if the shorter regimen is as safe and…

This study tests whether a new type of immunotherapy called CAR T cells can safely lower the immune system's reactivity in people waiting for a kidney transplant. Participants have a very high chance of rejecting most donor kidneys (cPRA of 99.5% or higher). The treatment involve…

This study is testing a long-acting injectable medication for children aged 2 to 12 who have HIV and whose virus is already under control. The goal is to see if switching from daily pills to a shot given every few weeks is safe, tolerable, and effective. About 90 children will pa…

This early-stage study tests whether a new oral drug called VNT-101 is safe for people. About 78 healthy adults aged 18-59 will receive either the drug or a placebo. The goal is to check for side effects and how the body processes the drug, not yet to treat the flu.

This early-stage study tests whether switching from the standard anti-rejection drug tacrolimus to everolimus plus epoetin can safely allow liver transplant recipients to stop all immunosuppressants. Twenty stable adult patients who received a liver transplant 1–10 years ago will…

This study tests whether transplanting healthy donor stool into the gut can reduce colon inflammation in people with chronic granulomatous disease (CGD) who have colitis not helped by standard treatments. Twenty participants aged 10-60 will receive the transplant during a colonos…

This study looks at whether switching kidney transplant patients from a standard drug (tacrolimus) to abatacept can improve kidney function and quality of life. It involves 800 participants, with 300 randomly assigned to either the new drug or standard care. The goal is to see if…

This study tests whether a single injection of Berinert, a protein that reduces inflammation, into a donor kidney just before transplant can improve kidney function in the first year. Researchers will compare this to a placebo in 180 high-risk patients receiving deceased-donor ki…

This study tests whether a simple esophageal string test (EST) can diagnose eosinophilic esophagitis (EoE) in people who have trouble swallowing. Participants swallow a capsule with a nylon string that collects fluid from the esophagus, which is then analyzed. The results will be…

This study tests whether specially modified pork (alpha-gal knockout) causes fewer allergic reactions than regular pork in people with alpha-gal syndrome. Each of the 160 participants will eat both types of pork on different days to see which one is safer for diagnosis. The goal …

This study tests a radioactive tracer called 124I-AT-01 that binds to amyloid clumps in the body. Researchers want to see if PET/CT scans can detect amyloidosis in organs of people with CAPS who developed it from anakinra injections. Thirty adults will be scanned every 6 months f…

This early-stage study is testing whether two lab-made antibodies, PGT121.414.LS and VRC07-523LS, are safe for newborns who were exposed to HIV during birth. The 48 infants will receive one or two shots of the antibodies under the skin. Researchers will monitor for side effects a…

This study tests if a spray made from ground cardamom seeds and a harmless skin bacteria (Roseomonas mucosa) can improve eczema symptoms in people aged 2 and older. Participants apply the spray 2-3 times a week for 14 weeks and are monitored remotely for about 7 months. Half rece…

This study aims to understand how Staphylococcus aureus bacteria interact with human cells to cause infections, especially in the spine. Researchers will use tonsil tissue discarded after routine tonsillectomies to create lab models. About 500 participants aged 2 and older who ar…

This study looks at how healthy people's skin and immune system respond to tick bites. Researchers will place clean, lab-bred ticks on volunteers' skin and take small skin samples and blood to track changes. The goal is to understand tick resistance and help design future vaccine…

This study investigates whether the bacteria causing Lyme disease can survive antibiotic treatment and cause ongoing symptoms. Researchers will follow 700 participants, including those with chronic Lyme disease, recovered individuals, and healthy volunteers, using blood tests, sp…

This study tests four different HIV drug regimens in 120 healthy volunteers to see how they affect metabolism and weight. Participants take one of the drugs or a combination for four weeks, with blood tests, body scans, and optional fat biopsies. The goal is to understand why som…

This study aims to find the safest and most effective dose of a specific flu virus to give to healthy adults in a controlled setting. About 90 volunteers aged 18 to 55 will be exposed to the virus or a placebo and closely monitored. The goal is to create a reliable model for test…

This study follows people who previously took part in type 1 diabetes trials to see how long their bodies continue to produce insulin. Researchers will also look at how immune system changes relate to insulin production. The goal is to gather information that could lead to better…

This study aims to better understand trisomy 8 mosaicism, a rare genetic condition where some cells have an extra copy of chromosome 8, and its link to autoinflammatory disease (TRIAD). Researchers will follow affected individuals and their healthy relatives over time, collecting…

This study aims to learn more about non-tuberculous mycobacterial (NTM) infections, which cause repeated lung and other organ infections. Researchers will study up to 1,000 participants to understand the genetics, symptoms, and best treatments for these infections. The study also…

This study screens healthy adults aged 18 to 60 to see if they can join future vaccine and antibody trials at the NIH. Volunteers give blood and urine samples and have a physical exam. No experimental products are given in this screening study.

This study gives healthy adults a controlled malaria infection using donated blood containing the P. vivax parasite. Researchers will monitor how the infection develops, how the immune system responds, and whether mosquitoes can pick up the parasite from participants. The goal is…

This study aims to find the genetic causes of inherited immune problems that affect white blood cells called lymphocytes. Researchers will review medical records and collect blood samples from up to 5,000 people with suspected immune disorders, as well as their relatives. The goa…

This study aims to understand how the immune system and skin healing are connected in people with primary immunodeficiency, psoriasis, or eczema, as well as in healthy volunteers. Researchers will collect skin biopsies, blood samples, and optional skin swabs to analyze microbes a…

This study looks at people who have had unusually severe or long-lasting viral infections, like serious cases of herpes, HPV, or the flu. Researchers want to find out if these people have hidden immune system or genetic problems that make them more vulnerable. Up to 600 participa…

This study follows about 50 members of a family with a rare inherited condition called familial hypereosinophilia, where high levels of a type of white blood cell can damage the heart and nerves. Researchers will track participants over many years with yearly checkups, blood test…

This study is for people with certain autoinflammatory diseases (like NOMID, DIRA, CANDLE, SAVI, and others) and their healthy relatives. Researchers want to learn more about what causes these diseases and how they affect the body over time. Participants will have medical tests a…

This study is looking for the genes that cause certain immune system problems. Researchers want to understand why some people get sick and others don't, even in the same family. Up to 5,000 people with immune disorders and their relatives will give blood or cheek cell samples for…

This study screens up to 2,000 people who have or may have immune disorders that make them prone to infections, along with their healthy relatives. Researchers will use medical history, physical exams, blood tests, and genetic testing to better understand these conditions. The go…

This study looks at HIV that stays hidden in the body even when the virus is under control. Researchers will measure the 'latent HIV reservoir' in 130 Ugandans with HIV and compare it to similar groups in the US. Participants give blood samples and answer health questions. No new…

This study collects blood, urine, skin swabs, and other samples from healthy volunteers to help researchers at the National Institutes of Health study diseases like HIV and hepatitis, and to develop new vaccines. Participants must be 18 or older and can donate samples one time or…

This study aims to learn how the immune system controls inflammation in the gut for people with Crohn's disease or ulcerative colitis. Up to 1,000 participants aged 0 to 75 will receive standard medical care and may provide blood, tissue, or white blood cell samples. No experimen…

This observational study is recruiting 2400 people with immune-related central nervous system diseases, such as multiple sclerosis, along with healthy volunteers for comparison. Researchers will use MRI scans, lumbar punctures, blood tests, and neurological exams to track disease…

This study will analyze DNA from up to 20,000 people, including those with immune disorders and their relatives, to find genetic variants linked to conditions like atopy, autoimmunity, and primary immunodeficiency. Researchers will also study how best to return genetic results to…

This study collects bone marrow and blood samples from up to 600 people with mastocytosis, a condition where too many mast cells cause symptoms like itching and bone pain. Researchers will study what makes these cells grow and survive. The goal is to learn more about the disease,…

This study collects white blood cells from HIV patients through a process called leukapheresis to examine how the immune system responds to early treatment. Researchers aim to enroll 60 adults—30 with early HIV and 30 with chronic HIV—who are not yet on antiretroviral therapy. Pa…

This study looks at the causes and effects of food allergies and related conditions like eczema and eosinophilic esophagitis. Researchers will collect blood, skin, and genetic samples from up to 1,800 people over many years. The goal is to find biomarkers and pathways that explai…

This study collects white blood cells and plasma from 400 people with HIV, including rare 'non-progressors' who control the virus without medication. Researchers will analyze immune responses and genetic markers to understand what makes these individuals special. The goal is to u…

This study looks at why some people with HIV develop Immune Reconstitution Inflammatory Syndrome (IRIS) after starting HIV medications. Researchers will use PET scans and lymph node biopsies to track inflammation and immune recovery in 300 adults. The goal is to better understand…

This study collects blood stem cells and immune cells from healthy volunteers and patients with primary immune deficiencies or blood disorders. The cells are used in the lab to develop new gene and cell therapies. Up to 850 adults aged 18-70 will participate. The goal is to advan…

This study aims to learn more about how HIV infects cells and affects the immune system by collecting blood samples from up to 2,419 adults, both with and without HIV. Researchers will analyze these samples to compare genetic and protein differences. The goal is to better underst…

This study follows 600 people with GATA2 deficiency, a genetic disorder affecting the immune system and other body systems. Researchers aim to understand the full range of health problems it causes and why it affects people differently. Participants will have yearly check-ups for…

This study is looking for the germs that cause fevers in Cambodia, especially those spread by insects like mosquitoes. Researchers will use advanced genetic testing to find these germs in blood and nasal samples from 6,500 people. The goal is to better understand what is making p…

This study aims to understand how certain bacteria avoid being killed by our immune cells, leading to infections. Researchers will collect blood samples from 200 healthy adults to study these interactions in the lab. The goal is to learn more about how bacteria cause disease and …

This study collects blood plasma and white blood cells from healthy volunteers and people with HIV using a procedure called apheresis. The samples are used for laboratory research on infectious diseases and immune function. Up to 3,000 participants aged 18 and older will be enrol…

This study follows people with autoimmune lymphoproliferative syndrome (ALPS) and their relatives over many years. Researchers will collect blood and tissue samples, track symptoms, and study genetics to better understand why the immune system attacks the body. The goal is to lea…

This study collects blood, urine, stool, and other samples from up to 150 healthy volunteers aged 18 to 85. Researchers will use these samples to compare with samples from patients who have too many eosinophils (a type of white blood cell), which can cause disease. The goal is to…

This study aims to understand how and why eosinophils (a type of white blood cell) become active in conditions like allergies, asthma, and parasitic infections. Researchers will observe up to 800 people aged 1 to 100 with high eosinophil levels. No experimental treatments are giv…

This study screens up to 5,000 healthy adults aged 18-65 to see if they can join future research on infectious diseases like flu and Zika. Volunteers undergo a 3-5 hour checkup including blood tests, heart exam, and chest X-ray. The goal is to build a pool of eligible participant…

This study aims to collect samples and medical information from people of all ages who have or have been exposed to viral infections, including COVID-19 and herpes. Researchers want to understand how viruses affect healthy individuals versus those with weakened immune systems. Pa…

This study aims to find new genes that cause immune system problems by examining up to 500 people with immune disorders and their relatives. Participants provide blood, saliva, or tissue samples and may have medical tests, but no experimental treatments are given. The goal is to …

This study collects blood, tissue, and imaging samples from 500 healthy adults aged 18 and older to learn how the immune system responds to vaccines and natural infections. Participants may provide samples like blood, urine, saliva, or tissue biopsies, and undergo procedures such…

This study is creating a large collection of microbiome samples—like stool, saliva, and skin swabs—from 600 people of all ages, including healthy volunteers and those with various illnesses. The goal is to build a resource for future research on how the microbiome affects health …

This study enrolls up to 400 people with known or suspected infections or inflammatory diseases that are not covered by other research protocols. The goal is to evaluate patients using standard medical practices, generate new ideas for future studies, and train doctors. No experi…

This study looks at how common chemicals in personal care products, processed foods, and synthetic materials affect skin, gut, and airway health. One hundred twenty healthy adults will stay in a controlled hospital room for two 7-day periods—one with filtered air and pure product…

This study aims to understand why some adults develop secondary hemophagocytic lymphohistiocytosis (sHLH), a serious immune condition causing fevers and organ damage. Researchers will follow 300 participants for up to 3 years, collecting blood samples and medical data to identify…

This study aims to understand how the human body responds to dengue virus infection, including in people who have had dengue before. Healthy volunteers aged 18 to 50 receive a single injection of a weakened dengue virus and are closely monitored for six months. Researchers measur…

This study aims to collect blood, saliva, and other samples from up to 3,000 people with primary immunodeficiency (PID) or their relatives. Researchers will analyze the samples to find genetic causes of PID. The goal is to better understand these inherited immune disorders, which…

This study looks at 800 healthy adults who have cryptococcosis, a fungal infection that usually only harms people with weak immune systems. Researchers want to learn why these otherwise healthy people get sick, how their immune system responds, and how the disease progresses over…

This study enrolls healthy adults who are already part of a respiratory virus challenge study at the NIH. Participants wear a smartwatch and use a smartphone to track temperature, heart rate, coughs, and other health signals. The goal is to see if these devices can detect subtle …

This study collects biological samples like blood, stool, saliva, and skin swabs from 600 healthy volunteers aged 3 to 80. Researchers at the National Institutes of Health will use these samples to design and improve laboratory tests for other studies. Participants may be asked t…

This study, run by the National Institute of Allergy and Infectious Diseases, collects blood and stool samples from up to 5,000 people of all ages who have or had COVID-19, as well as those heavily exposed but uninfected. Researchers will analyze immune responses and genetic fact…

This study aims to find biomarkers—signs in the body—that can tell if a child will have an allergic reaction to peanut during a feeding test. It will involve 500 children aged 1 to 17 who are suspected of having a peanut allergy. No treatment is given; the goal is to better under…

This study collects biological samples like blood, saliva, and urine from 300 adults aged 18-70, both with and without blood disorders such as sickle cell disease and thalassemia. The goal is to use these samples for research to better understand these conditions and related dise…

This study aims to learn more about primary immunodeficiency disorders (PIDs), which weaken the immune system and make people more prone to infections. Researchers will compare genetic and health data from people with PIDs, their healthy relatives, and healthy volunteers to find …

This study follows 500 people with neurocysticercosis, a brain infection caused by the pork tapeworm. Participants receive standard antiparasitic drugs and anti-inflammatories. Researchers will track their health over many years to understand what factors lead to better or worse …

This study aims to understand the causes and progression of Common Variable Immunodeficiency (CVID) and related inborn errors of immunity. Researchers will observe up to 500 patients over time using blood tests, imaging, and other exams. The goal is to find better ways to diagnos…

This study follows 150 people with active or latent tuberculosis (TB) to collect blood, sputum, and tissue samples. The goal is to better understand how TB behaves in the body and how the immune system responds. Participants receive standard TB treatment as part of the study, but…

This study is observing up to 3,500 people with immune system problems, including rare genetic conditions like chronic granulomatous disease and severe combined immunodeficiency. Researchers will track how these diseases change over time through blood tests, imaging, and checkups…

This study aims to improve how doctors evaluate and manage people who have been exposed to bioterrorism agents (like anthrax) or emerging infectious diseases (like SARS or new flu strains). Up to 200 participants, including patients and healthcare workers, will be monitored and t…

This study aims to collect stem cells from people with a rare condition called idiopathic CD4 lymphocytopenia (ICL) and from healthy volunteers. Participants receive two medications to move stem cells from bone marrow into the blood, where they are collected. The stem cells are t…

This study aims to learn more about Hyper IgE syndrome, a rare immune disorder that causes skin and lung infections. Researchers will follow 600 patients and their relatives over time, examining their health and genetics. The goal is to better understand the disease and improve c…

This study follows 950 people with idiopathic CD4+ lymphocytopenia (ICL), a rare condition where low CD4+ white blood cells raise infection risk. Researchers will track participants for up to 10 years, collecting medical history, blood samples, and infection data. The goal is to …

This study looks at how leishmaniasis infections progress and respond to treatment. It involves up to 289 people aged 3 to 100 with known or suspected leishmaniasis. Researchers will collect blood and tissue samples to learn more about the disease and test different treatments. T…

This study screens healthy adults aged 18 to 50 to see if they can join future malaria research trials. The goal is to find safe and effective malaria vaccines, drugs, or prevention methods. Participants will have a medical history check, physical exam, and blood and urine tests.…

This study aims to understand how HIV behaves differently in the blood compared to lymph nodes and bone marrow. Researchers will take samples from 400 people living with HIV and some without HIV to measure virus levels and immune system changes. The goal is to learn more about wh…

This study aims to understand why some people with tuberculosis (TB) experience a paradoxical reaction, where they initially improve on treatment but then suddenly get worse. Researchers will follow 140 adults with TB, with or without signs of this reaction, using blood tests, ur…

This study tracks the health of people with HIV over time to learn more about the infection and related conditions. It is for adults 18 and older in the Washington, D.C., area who have or may have HIV. Participants visit the clinic every few months for check-ups and blood tests, …

This study looks at 200 people aged 3–21 with eczema and high IgE levels who may have milk or peanut allergies. Researchers will use oral food challenges to find better ways to predict true allergies. The goal is to make allergy tests more accurate and reduce unnecessary food res…

This study aims to understand why some people get severe or unusual fungal infections due to immune system problems. Researchers will collect blood, tissue, and other samples from up to 1,200 participants over 25 years. No new treatments are being tested; the goal is to learn mor…

This large observational study in Mali is following up to 15,000 pregnant women and children to understand why some get malaria and others don't. Researchers are looking at immune responses, parasite features, and other factors that influence infection and disease severity. The g…

This study aims to understand why some people are more prone to fungal infections, especially from Candida yeast. Researchers will collect blood, saliva, urine, and tissue samples from people with immune disorders, their family members, and healthy volunteers. No treatment is giv…

This study creates a registry of people with asthma who live in urban areas, including children and adults. The goal is to gather detailed information about their asthma and allergy characteristics. This database will serve as a pool of potential participants for future research …

This study looks at people with unusual or repeated infections and their family members to find the genetic and biochemical causes of immune system problems. Researchers will collect blood, saliva, urine, and other samples over time to better understand these conditions. The goal…

This study looks at how people's immune systems react to infections from parasitic worms, which can cause serious health problems like swelling, blindness, or heart disease. Researchers will evaluate and treat up to 500 participants aged 3 to 100 using standard medical tests and …

This study aims to collect blood, nose, and saliva samples from up to 20,000 people aged 3 and older who have or may have a respiratory virus infection like flu or COVID-19. The samples will be stored and used in future research to better understand these viruses and how the immu…

This study follows 500 people with active Lyme disease to learn more about the infection. Participants receive standard FDA-approved treatments and undergo tests like blood draws and leukapheresis. The goal is to explore biological markers, track clinical outcomes, and understand…

This study looks at how immune system diseases can cause problems in the brain and nerves, affecting movement, thinking, and feelings. Researchers will follow 350 people aged 2 and older with immune diseases, plus their healthy relatives, for up to 5 years. They will collect bloo…

This study aims to find genetic mutations that cause chronic active Epstein-Barr virus (CAEBV), a rare and serious disease mainly affecting children and young adults. Researchers will analyze blood and tissue samples from up to 50 patients and 150 relatives, plus anonymous donor …

This study looks at people with severe or hard-to-treat Valley Fever, a lung infection caused by a fungus found in the southwestern U.S. Researchers want to understand why some people get seriously ill by studying their immune systems and genetics. Up to 400 participants will giv…

This study aims to collect blood, nasal fluid, skin cells, urine, and medical data from 10,000 people aged 3 to 100 with allergies, asthma, eczema, or sinus issues. Participants will have up to 3 years of follow-up visits and questionnaires. The goal is to create a large reposito…

This natural history study will follow 700 people with Down syndrome and their healthy relatives for up to 15 years. Researchers want to learn how removing part of the thymus during heart surgery affects the immune system over time. Participants will have yearly check-ups, blood …

This study is for people aged 3 and older who have severe, recurring HPV-related warts or lesions that don't respond to standard treatments. Researchers want to learn why some people get sicker from HPV than others by studying their genes and immune systems. Participants will pro…

This study follows 310 children aged 6 to 17, some with asthma and some without, for one year. Researchers want to learn how different types of asthma cause symptoms and sudden attacks. Participants keep track of cold symptoms and attend regular check-ups. The goal is to better u…

This study looks at how the immune system of healthy adults in Cambodia reacts to viruses that can spread from animals to people. Researchers will collect blood samples from 400 people who have close contact with animals, such as those working in wet markets or living near bat ca…

This study looks at immune cells in the lymph nodes of 16 cat-allergic adults. Half are on long-term allergy shots (immunotherapy), half are not. Researchers will give a small cat allergen injection and then sample lymph nodes and blood to see how many analyzable cells they can c…

This study examines how germs living on and in the body, along with environmental factors like pollution, may influence allergic diseases such as asthma and eczema in people living in Mali. Researchers will collect samples and health information from 288 participants, both with a…

This study aims to learn more about PFAPA, a condition that causes repeated fevers, sore throats, and mouth sores in children. Researchers will collect blood, saliva, stool, and tonsil tissue from 1,500 people with PFAPA or other tonsil problems. No treatment is given; the goal i…

This study is collecting information on pregnancy and malaria in 9,500 women aged 15-49 in Kalifabougou, Mali. Researchers will track pregnancies, malaria cases, and pregnancy outcomes like preterm birth and anemia. The goal is to better understand these health issues in the comm…