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Featured Studies

Office of Patient Recruitment

This web page makes it easy to search for featured research studies at the NIH Clinical Center. You can search for specific studies by entering keywords related to your symptoms in the search box or by using the sort and filter options.


To view a full list of all studies conducted at the NIH Clinical Center, visit Search the Studies.

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36 results
A closeup view showing Helicobacter pylori (H. pylori) bacteria

Be Part of a Study That Could Change How We Detect Helicobacter pylori

This study explores whether the Esophageal String Test (EST), a simple, less invasive procedure can accurately detect H. pylori and antibiotic resistance, compared to traditional testing that uses endoscopic biopsies.

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A person holding a crochet fabric art piece of the digestive system

A Controlled Human Infection Study of Orally Administered Trichuris Trichiura Eggs in Naive Adults

Research Study #001706-I - Join a research study investigating the best-tolerated number of whipworm eggs to give to a healthy adult that results in a whipworm infection. The findings from this study will contribute to the development of new therapies in future research.

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A doctor examining a patient's throat

An Open-Label Study of Zemaira (Alpha 1-Trypsin Inhibitor) in Subjects with Eosinophilic Esophagitis

Research Study #001854-I to explore the effects of Zemaira® for individuals with eosinophilic esophagitis (EoE). This study aims to understand how people with EoE feel while taking Zemaira® and whether it provides any benefits. By joining this research, you'll have the opportunity to contribute to medical advancements that could improve care for those with EoE. Every patient plays a key role in shaping future treatments and expanding knowledge about this condition. 

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mosquito biting human skin

Phase 1 Study of Induced Blood-Stage Malaria in Healthy Malaria-Naive Adults to Assess the Safety and Infectivity of Plasmodium Vivax Challenge Agent and Evaluate Transmission in Mosquito Feeding Assays

To learn how malaria develops in people; how the body's immune system reacts to malaria; and how malaria spreads from people to mosquitoes.

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A father checking his child's forehead temperature for a fever

Evaluating the Genetics and Immunology of Periodic Fever, Aphthous Stomatitis, Pharyngitis, and Cervical Adenitis (PFAPA) Syndrome and Other Tonsil Disorders

Do you or your child experience recurring fever with mouth sores (canker sores), sore throat, or swollen neck glands? These could be symptoms of PFAPA, the most common periodic fever syndrome in children.

Dr. Manthiram and her team at the National Institute of Allergy and Infectious Diseases (NIAID) seek volunteers who are one month and older (parental consent required for minors) to participate in a research study to better understand PFAPA. Compensation provided. Participants can join from home anywhere in the USA or internationally.

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Woman having her thyroid/neck imaged

The Use of 124-I-PET/CT Whole Body and Lesional Dosimetry in Differentiated Thyroid Cancer

Researchers at @NIDDKgov are studying new methods in treating thyroid cancer that has spread outside the thyroid – to the lymph nodes, lungs, or bones We are now enrolling patients age 18 years and older with thyroid cancer that spread outside the thyroid. All study tests and procedures are provided at no cost. 

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A male patient having his thyroid/neck examined by a doctor

The Role of 68-Gallium-DOTATATE-PET/CT in the Imaging of Metastatic Thyroid Cancer

Did you know your thyroid gland produces hormones that regulate body temperature, heart rate and metabolism? Physicians want to explore a better method to detect thyroid tumors by using a compound called 68Gallium-DOTATATE. This compound may bind to a tumor and make it visible during a PET/CT scan. This information will help guide future research and treatment.

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Treatment of Patients With Cysticercosis With Praziquantel or Albendazole

Treatment of Patients With Cysticercosis With Praziquantel or Albendazole

Are you from Mexico, Central or South America, or India with hydrocephalus, seizures, or an inflammatory condition of the central nervous system without a diagnosis? The National Institutes of Health (NIH) is studying people with cysticercosis and those likely to have cysticercosis. All study related tests and procedures are provided at no cost to you. Travel to and from NIH may be reimbursed.

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Studies on Tumors of the Thyroid

Studies on Tumors of the Thyroid

Doctors at the National Institutes of Health (NIH) are conducting a research study for thyroid cancer. Researchers are using a novel imaging technique called 68Gallium DOTATATE PET/CT, which has been proven safe and effective in patients with other tumors - neuroendocrine tumors.
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Viral Load in Blood and Lymph Tissues of HIV-Infected Individuals

Viral Load in Blood and Lymph Tissues of HIV-Infected Individuals

Doctors at the National Institutes of Health are conducting a research study (92-I-0125) to learn more about the immune system and how it responds to HIV infection in blood, lymph nodes, and bone marrow. We are seeking healthy volunteers to have a lymph node biopsy to compare with patients who have HIV.
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