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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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8 results
A Proof-of-Concept Trial on the Effect of Ketamine on Fatigue

A Proof-of-Concept Trial on the Effect of Ketamine on Fatigue

The National Institute of Nursing Research (NINR), at the National Institutes of Health (NIH) is seeking people who are cancer survivors or have a chronic illness such as myalgic encephalomyelitis (ME), chronic fatigue syndrome (CFS), Sjogren's disease, or Lupus to participate in a research study on fatigue. Fatigue is a common side effect of various illnesses. Researchers want to test if a one-time dose of the medication Ketamine or a similar drug can reduce fatigue. This is not a treatment study for fatigue, cancer, ME, CFS, Sjogren's disease, or Lupus. Study procedures and medications are provided at no cost. Travel costs for study visits will be reimbursed in accordance with NIH guidelines.
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Spironolactone for Pulmonary Arterial Hypertension

Spironolactone for Pulmonary Arterial Hypertension

Researchers at the National Institutes of Health (NIH) Clinical Center are testing if spironolactone can be used to treat PAH. Spironolactone is a medication that can help with fluid retention, however it may also be beneficial to adults with PAH by controlling inflammation and improving blood vessel function in the lungs.
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COVID-19, Chronic Adaptation and Response to Exercise (COVID-CARE): A Randomized Controlled Trial
COVID-19 Adaptation and Response to Exercise

COVID-19, Chronic Adaptation and Response to Exercise (COVID-CARE): A Randomized Controlled Trial COVID-19 Adaptation and Response to Exercise (En español)

Researchers at the National Institutes of Health's (NIH) Clinical Center are looking for adult volunteers for a study on whether an aerobic exercise program benefits survivors of COVID-19. (En español)
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COVID-19, Adaptación crónica y respuesta al ejercicio (COVID-CARE): un ensayo controlado aleatorio

COVID-19, Adaptación crónica y respuesta al ejercicio (COVID-CARE): un ensayo controlado aleatorio

Investigadores del Centro Clínico de los Institutos Nacionales de la Salud (NIH, por sus siglas en inglés) buscan voluntarios para un estudio que investiga si un programa de ejercicios aeróbicos puede beneficiar a los sobrevivientes de COVID-19.

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Famine from Feast: Linking Vitamin C, Red Blood Cell Fragility, and Diabetes

Famine from Feast: Linking Vitamin C, Red Blood Cell Fragility, and Diabetes

The National Institutes of Health (NIH) researchers are enrolling adult volunteers in a study investigating the role of Vitamin C in red blood cells of patients with type 2 diabetes. Findings may help improve future treatment and care of people with diabetes.
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Mediterranean-like Unprocessed (CLEAN-MED) Diet Intervention Study of the Gut Microbiome of Healthy Adults

Mediterranean-like Unprocessed (CLEAN-MED) Diet Intervention Study of the Gut Microbiome of Healthy Adults

A research study at the National Institutes of Health (NIH) is is investigating how dietary habits affect our intestinal microorganisms by studying the effects of Mediterranean-like unprocessed (CLEAN-MED) diet. Participants will be divided into two groups, depending on their interest in trying out the diet for 4 weeks or maintaining a new healthy diet over months, and will be provided with some foods. Participants will log the food they eat and answer questions about their diet throughtout the study. Food and research supplies and procedures are provided at no cost.
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Dietary Behavior Intervention

Dietary Behavior Intervention

The risk of heart disease among African Americans is still common despite a greater understanding of the disease and better approaches to managing it. Healthy cooking and eating patterns can help reduce the risk of heart disease. But things like access to grocery stores and knowledge of good nutrition can affect these healthy patterns. Researchers at The National Institutes of Health want to see if community-based programs can help.
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