Find a Clinical Trial

See the list of featured NIAID clinical trials below or view the complete list of NIAID studies recruiting participants on ClinicalTrials.gov.

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HIV and Emerging Infectious Diseases
Older Adult (65+)
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Coronaviruses

Cardiopulmonary Inflammation and Multi-System Imaging During COVID-19 Infection in Asymptomatic and Symptomatic Persons

A study to learn how coronavirus affects different organs of the body and the function of the body's immune system.

Drug Treatment Study of Individuals With Mild COVID-19

This NIAID research study focuses on an experimental drug which may help treat COVID-19 by supporting the immune system.

Study of How COVID-19 Affects Blood Cells and the Immune System

A study about how SARS-CoV-2, the virus that causes COVID-19, affects the body, specifically how it affects blood cells and the immune system.

Study of Long-Term Medical Problems and Long-Term Immunity After COVID-19 Recovery

A study about long-term medical problems experienced by people who recover from COVID-19 and whether people who recover develop long-term immunity to SARS-CoV-2, the virus that causes COVID-19.

Hepatitis

Monitoring SOF/VEL in Treatment Naïve, HCV Participants With Active Infection (MINMON)

This study is trying to see whether taking an HCV treatment with fewer clinic visits and laboratory tests can cure just as many people as the standard approach that uses more visits and laboratory tests.

HIV/AIDS

CLOTRx Healthy Volunteer Study

People infected with HIV take drugs called antiretrovirals to keep the amount of HIV in their bodies low as well as anticoagulants to treat or prevent blood clots. This study will help gain a better understanding of how antiretrovirals and oral anticoagulants interact with each other.

Evaluating the Use of Pitavastatin to Reduce the Risk of Cardiovascular Disease in HIV-Infected Adults (REPRIEVE)

People infected with HIV are at risk for cardiovascular disease (CVD). This study will evaluate the use of pitavastatin to reduce the risk of CVD in adults infected with HIV who are on antiretroviral therapy (ART).

LTNP Study

A small group of people who are HIV positive remain healthy for long periods of time without medications. These Long-Term Non-Progressors have properties within their immune systems that control the virus and can help researchers determine how their immune systems control HIV disease.

Safety and Efficacy Study of Injectable Cabotegravir Compared to Daily Oral Tenofovir Disoproxil Fumarate/Emtricitabine (TDF/FTC), For Pre-Exposure Prophylaxis in HIV-Uninfected Cisgender Men and Transgender Women Who Have Sex With Men

This study will evaluate the safety and efficacy of the injectable drug cabotegravir (CAB LA), for pre-exposure prophylaxis (PrEP) in HIV-uninfected cisgender men and transgender women who have sex with men (MSM and TGW).

YODA Healthy Volunteer Study

In this study, we will look at whether rifapentine and isoniazid affect blood levels of a commonly used antiretroviral called tenofovir alafenamide, or TAF. The United States Food and Drug Administration (FDA) has approved rifapentine and isoniazid for treating TB.