2,210 matching studies

Sponsor Condition of Interest
Viral Infections in Healthy and Immunocompromised Hosts
National Institute of Allergy and Infectious Diseases (NIAID) Anogenital Herpes COVID-19 Herpes Labialis
Background: - Viral infections are an important cause of illness and death in hospitalized patients as well as outpatients. New strains of viruses may appear and infect both healthy people and those with weak immune systems. A better understanding of these new virus strains (such as SARS-CoV-2, th1 expand

Background: - Viral infections are an important cause of illness and death in hospitalized patients as well as outpatients. New strains of viruses may appear and infect both healthy people and those with weak immune systems. A better understanding of these new virus strains (such as SARS-CoV-2, the virus that causes COVID-19) may help to control and prevent these infections. In particular, some viral infections that are less problematic in healthy persons can be life threatening in persons with weak immune systems, and viruses may be able to evolve more rapidly in persons with weak immune systems and therefore develop resistance to existing treatments. Researchers are interested in collecting samples and information from otherwise healthy persons or persons with weak immune systems to study the effects of viruses and their development. Objectives: - To collect samples and data from individuals who have been exposed to or have contracted viral infections. Eligibility: - Individuals of all ages who have been diagnosed with a viral infection are suspected to have a viral infection, or have been in close contact with someone with a suspected or actual viral infection that is of interest to investigators in the Laboratory of Infectious Diseases. - Healthy persons and persons with weak immune systems (immunocompromised individuals) are eligible to participate. Design: - Participants will be pre-screened to determine if they meet the eligibility criteria for the trial. - If eligible, evaluation may include a medical chart review, a history and physical examination, review of clinical reports from outside hospitals and laboratories, and review of tissue biopsies. - Study procedures may include collection of blood, urine, saliva, nasal fluid sampling, throat swabs, stool, and genital swabs. For participants who have specimens collected as part of their medical care (e.g. wound swabs, spinal tap, bronchoscopy, liver biopsy etc.), researchers may use leftover specimens from the clinical laboratory for testing. - Specimens may be collected up to 4 times per week during the first 2 weeks after enrollment, and then as many as 2 times per week for up to 2 years. Some participants may be asked to continue providing specimens if there is concern for relapse or recurrence of the infection. - Treatment is not offered under this study.

Type: Observational

Start Date: Mar 2011

open study

A Study to Learn About the Study Medicine Ibuzatrelvir in Adults With COVID-19 Who Are Severely Imm1
Pfizer COVID-19 Infection
This is a Phase 3, randomized, actively controlled, double-blinded, double-dummy, superiority study to evaluate the efficacy and safety of ibuzatrelvir alone and in combination with remdesivir IV compared to remdesivir IV alone for the treatment of symptomatic COVID-19 in severely immunocompromised1 expand

This is a Phase 3, randomized, actively controlled, double-blinded, double-dummy, superiority study to evaluate the efficacy and safety of ibuzatrelvir alone and in combination with remdesivir IV compared to remdesivir IV alone for the treatment of symptomatic COVID-19 in severely immunocompromised adult participants who are non-hospitalized or are hospitalized for observation or study intervention administration but do not require supplemental oxygen for COVID-19.

Type: Interventional

Start Date: Jul 2025

open study

Magnetic Resonance Analysis of Neural Inflammatory Factors and External Stimulation
University of New Mexico Long COVID Long COVID Syndrome Long COVID-19 Syndrome PASC PASC Post Acute Sequelae of COVID 19
The goal of this clinical trial is to test whether a type of rapid outpatient brain stimulation that uses magnetic fields, called accelerated intermittent theta burst stimulation (iTBS), can treat symptoms such as brain fog, depression, and anxiety in patients with Long COVID. The main questions it1 expand

The goal of this clinical trial is to test whether a type of rapid outpatient brain stimulation that uses magnetic fields, called accelerated intermittent theta burst stimulation (iTBS), can treat symptoms such as brain fog, depression, and anxiety in patients with Long COVID. The main questions it aims to answer are: - Is iTBS effective and feasible for reducing Long COVID symptoms? We will measure these symptoms using the Symptom Burden Questionnaire. - Are there changes in inflammatory brain chemicals associated with treatment with iTBS? We will be looking at levels of choline in the brain, which is thought to be related to inflammation. Researchers will compare sham versus active forms of iTBS to see if the active group has greater improvement in symptoms. Participants will complete symptom surveys, cognitive tests, and magnetic resonance imaging scans at the beginning, middle, and end of treatment.

Type: Interventional

Start Date: Jul 2025

open study

Thymalfasin (Thymosin Alpha 1; Ta1) as an Enhancer of Vaccine Response Among Older Adults Receiving1
The Methodist Hospital Research Institute Vaccine Response COVID-19 Vaccine Immune Response to Covid 19 Vaccination
The goal of this research is to learn more about ZADAXIN® (trade name; thymalfasin generic; Ta1 for short) and determine if Ta1 has any benefit in increasing the immune response to the COVID-19 vaccine. Ta1 has been shown to stimulate the immune system to fight infections. This research study will1 expand

The goal of this research is to learn more about ZADAXIN® (trade name; thymalfasin generic; Ta1 for short) and determine if Ta1 has any benefit in increasing the immune response to the COVID-19 vaccine. Ta1 has been shown to stimulate the immune system to fight infections. This research study will test the safety and possible harms of Ta1 when it is given to people at different dose levels before COVID-19 vaccination.

Type: Interventional

Start Date: Dec 2024

open study

The Effects of Endotracheal Suctioning on Pain and Serum Markers
Loma Linda University Intensive Care Unit ICU Intubation Critical Illness Mechanical Ventilation Pain Measurement
The goal of this experimental study is to understand if endotracheal tube (ETT) suctioning increases pain and causes stress on the body in intubated adult ICU patients. These patients are already on ventilators, which means they need suctioning to keep their airways clear, but this procedure may be1 expand

The goal of this experimental study is to understand if endotracheal tube (ETT) suctioning increases pain and causes stress on the body in intubated adult ICU patients. These patients are already on ventilators, which means they need suctioning to keep their airways clear, but this procedure may be uncomfortable and cause stress. The main questions this study aims to answer are: Does ETT suctioning raise pain levels as measured by the Critical-Care Pain Observation Tool (CPOT)? Does ETT suctioning increase certain chemicals in the blood (hypoxanthine, xanthine, and uric acid) that show stress and lack of oxygen in the body? Researchers will compare patients who have ETT suctioning (intervention group) with those who do not have suctioning during the study period (control group) to see if there are differences in pain and blood markers of stress. Participants will: Have pain measured before and after suctioning using the CPOT. Have blood samples taken from an existing line at three time points: 5 minutes before, 5 minutes after, and 30 minutes after suctioning. Provide demographic information (like age, gender, and diagnosis) from medical records. This research will help improve how pain is managed for ICU patients who cannot speak for themselves, potentially leading to better pain relief methods in the future.

Type: Interventional

Start Date: Jan 2025

open study

A Clinical Study of Molnupiravir to Prevent Severe Illness From Coronavirus Disease 2019 (COVID-19)1
Merck Sharp & Dohme LLC Coronavirus Disease (COVID-19)
Researchers are looking for other ways to prevent severe illness from COVID-19. COVID-19 is a virus that most often causes mild flu or cold-like symptoms. However, people with certain health conditions or other factors have a high risk (chance) of getting severely ill from COVID-19, which can requi1 expand

Researchers are looking for other ways to prevent severe illness from COVID-19. COVID-19 is a virus that most often causes mild flu or cold-like symptoms. However, people with certain health conditions or other factors have a high risk (chance) of getting severely ill from COVID-19, which can require a hospital stay or lead to death. Some people who are high risk for severe illness may be unable to take certain treatments for COVID-19 because they are not available to them, or they take other medicines that may react with a treatment and cause an unwanted effect. Molnupiravir (MK-4482) is a study medicine designed to stop the COVID-19 virus from copying itself in the body (multiplying). The goal of this study is to learn if molnupiravir prevents severe illness from COVID-19 more than placebo in people who are high risk.

Type: Interventional

Start Date: Dec 2024

open study

RECOVER-ENERGIZE Platform Protocol_Appendix A (Exercise Intolerance)
Duke University Long COVID Long Covid19 Long Covid-19
This is a platform protocol designed to be flexible so that it is suitable for a range of interventions and settings within diverse health care systems and community settings with incorporation into clinical COVID-19 management programs and treatment plans if results achieve key study outcomes. Th1 expand

This is a platform protocol designed to be flexible so that it is suitable for a range of interventions and settings within diverse health care systems and community settings with incorporation into clinical COVID-19 management programs and treatment plans if results achieve key study outcomes. This protocol is a prospective, multi-center, multi-arm, randomized, controlled platform trial evaluating interventions to address and improve exercise intolerance and post-exertional malaise (PEM) as manifestations of Post-Acute Sequelae of SARS-CoV-2 Infection (PASC). The focus of this protocol is to assess interventions that can improve exercise capacity, daily activities tolerance, and quality of life in patients with PASC.

Type: Interventional

Start Date: Jul 2024

open study

A Phase 2 Trial of the Immunogenicity and Safety of CVXGA Intranasal COVID Vaccine in Healthy Adults
CyanVac LLC COVID-19
The purpose of this trial is to evaluate immunogenicity and safety of CVXGA administered as a single intranasal dose against SARS-CoV-2 S-protein in participants. The trial will enroll up to 400 healthy participants, age 18-80 years. expand

The purpose of this trial is to evaluate immunogenicity and safety of CVXGA administered as a single intranasal dose against SARS-CoV-2 S-protein in participants. The trial will enroll up to 400 healthy participants, age 18-80 years.

Type: Interventional

Start Date: Sep 2023

open study

Efficacy and Safety of Tozorakimab in Patients Hospitalised for Viral Lung Infection Requiring Supp1
AstraZeneca Viral Lung Infection and Acute Respiratory Failure
The purpose of this study is to evaluate the effect of tozorakimab, as an add-on to SoC in patients with viral lung infection requiring supplemental oxygen, on the prevention of death or progression to IMV/ECMO. expand

The purpose of this study is to evaluate the effect of tozorakimab, as an add-on to SoC in patients with viral lung infection requiring supplemental oxygen, on the prevention of death or progression to IMV/ECMO.

Type: Interventional

Start Date: Dec 2022

open study

COVID-19 Citizen Science Expansion Project
University of California, San Francisco Covid19
COVID-19 Citizen Science (CCS), launched in March 2020, supports collaborative research on symptoms, risk factors, surveillance, biomarkers and testing for COVID-19 using the Eureka Research Platform. CCS maintains IRB approval with UCSF's IRB (UCSF IRB# 17-21879). This CCS Expansion Project, whic1 expand

COVID-19 Citizen Science (CCS), launched in March 2020, supports collaborative research on symptoms, risk factors, surveillance, biomarkers and testing for COVID-19 using the Eureka Research Platform. CCS maintains IRB approval with UCSF's IRB (UCSF IRB# 17-21879). This CCS Expansion Project, which is funded jointly by the National Institutes of Health (NIH), the Patient-Centered Outcomes Research Institute (PCORI), and the Bill and Melinda Gates Foundation, will invite patients at health systems across the US to contribute their health records data and then join the established CCS study, allows for linked analysis of CCS data and health records data, and provides the scientific rationale and plan for the project.

Type: Observational

Start Date: Mar 2020

open study

COVID-19 Vaccine Education at the Point of Testing to Increase Vaccine Uptake in Vulnerable Communi1
Xavier University of Louisiana. Covid19 Vaccine Refusal Vaccine Hesitancy
This project is a 2-year study to investigate vaccine hesitancy and vaccine completion among vulnerable communities in the Southeastern Louisiana region. This study will be used to track COVID-19 vaccine completion among patients who seek testing, either as in-person or purchasing at home COVID tes1 expand

This project is a 2-year study to investigate vaccine hesitancy and vaccine completion among vulnerable communities in the Southeastern Louisiana region. This study will be used to track COVID-19 vaccine completion among patients who seek testing, either as in-person or purchasing at home COVID testing, from pharmacies, urgent cares and clinics using a rapid vaccine education model delivered at the point of care.

Type: Interventional

Start Date: Sep 2022

open study

Defibrotide for the Treatment of Severe COVID-19
Brigham and Women's Hospital Covid19
The goal of this study is to evaluate the safety and feasibility of defibrotide in COVID-19 pneumonia. expand

The goal of this study is to evaluate the safety and feasibility of defibrotide in COVID-19 pneumonia.

Type: Interventional

Start Date: Jan 2021

open study

Well-Being and Health-Related Quality of Life in Cancer Patients and Survivors During the COVID-191
M.D. Anderson Cancer Center COVID-19 Infection Hematopoietic and Lymphoid Cell Neoplasm Malignant Solid Neoplasm
This study investigates the well-being and health-related quality of life in cancer patients and survivors during the COVID-19 pandemic. Using questionnaires may help researchers gain an understanding of how experiences during the COVID-19 pandemic (e.g., exposure, risk factors, testing, isolation,1 expand

This study investigates the well-being and health-related quality of life in cancer patients and survivors during the COVID-19 pandemic. Using questionnaires may help researchers gain an understanding of how experiences during the COVID-19 pandemic (e.g., exposure, risk factors, testing, isolation, seropositivity, hospitalization, loss of family or friends, loss of income), may impact multiple domains of health-related quality of life (physical, emotional and social well-being), and other areas such as COVID-19-specific psychological distress (e.g., fear, anxiety and depressive symptoms), and disruptions to health care, finances, and social interactions.

Type: Observational

Start Date: Jun 2020

open study

Assessment of the Psychosocial Impact of the COVID-19 Pandemic on the MD Anderson Cancer Center Wor1
M.D. Anderson Cancer Center COVID-19 Infection
This study investigates the impact of the COVID-19 pandemic on the psychosocial health of employees of MD Anderson Cancer Center. Epidemics have been shown to promote psychological stress among medical staff in high risk areas, which may lead to mental health problems. Assessing how the pandemic is1 expand

This study investigates the impact of the COVID-19 pandemic on the psychosocial health of employees of MD Anderson Cancer Center. Epidemics have been shown to promote psychological stress among medical staff in high risk areas, which may lead to mental health problems. Assessing how the pandemic is affecting employees may allow for more comprehensive actions to be taken to protect the mental health of employees.

Type: Observational

Start Date: May 2020

open study

High Resolution Micro OCT Imaging
University of Alabama at Birmingham Cystic Fibrosis COPD PCD - Primary Ciliary Dyskinesia Covid19 Sinusitis
The purpose of this study is to learn about using the imaging to make images of the lungs and nose with the long-term goal of the research leading to potential treatments and new therapies for patients with cystic fibrosis. expand

The purpose of this study is to learn about using the imaging to make images of the lungs and nose with the long-term goal of the research leading to potential treatments and new therapies for patients with cystic fibrosis.

Type: Observational

Start Date: Apr 2016

open study

Immunotherapy for Neurological Post-Acute Sequelae of SARS-CoV-2
National Institute of Neurological Disorders and Stroke (NINDS) Systemic Inflammation Neuroinflammation Microvascular Thrombosis
Background: COVID-19 can cause problems in different parts of the body. For most people, it causes fevers or trouble breathing. Some people might not recover all the way. Researchers want to see if a treatment can help with people who have recovered from COVID-19 but still have symptoms ("Long COV1 expand

Background: COVID-19 can cause problems in different parts of the body. For most people, it causes fevers or trouble breathing. Some people might not recover all the way. Researchers want to see if a treatment can help with people who have recovered from COVID-19 but still have symptoms ("Long COVID"). Objective: To learn if human immunoglobulin (IVIG) will help with neurological symptoms of Long COVID. Eligibility: Adults ages 18 and older who had COVID-19 at least 12 weeks ago and have ongoing neurologic symptoms, such as dizziness, trouble walking, or problems with strength. Design: Participants will be screened with a medical record review. Participants will have a medical history and a physical exam and complete questionnaires about their health and quality of life. They will have a spinal tap. They will give blood samples. They will discuss their symptoms with a neurologist and have a neurological exam. Participants will take memory and thinking tests using a tablet. The tests will take 1 hour to complete. They will also take a smell and taste test. It will take approximately 30 minutes to complete. Participants will lie on a table that tilts for up to 40 minutes. Their blood pressure and heart rate will be monitored. Blood will be taken through an intravenous (IV) catheter. Participants will receive either IVIG, or saline by IV for 5 days. Then the participants will receive IVIG if they first received saline or saline if they first received IVIG by IV for another 5 days. They will not know what they receive. Participants will have an MRI of the brain if they have not had one recently. They will receive a contrast agent by IV as part of the MRI scan. Participants will be on the study for up to 4 months. They will have follow-up visits at the clinical center as well as fill out questionnaires at home. They may be asked to continue follow-up.

Type: Interventional

Start Date: Jul 2023

open study

Safety and Immunogenicity of NVX-CoV2705
Sanofi COVID-19 SARS-CoV-2 Infection
This study is a Phase 3 trial designed to check the safety and immune response to a new Omicron JN.1 COVID-19 vaccine. Study researchers will give a single dose of this vaccine, called NVX-CoV2705, to approximately 120 participants. This includes adults aged 65 and older, and individuals aged 12 to1 expand

This study is a Phase 3 trial designed to check the safety and immune response to a new Omicron JN.1 COVID-19 vaccine. Study researchers will give a single dose of this vaccine, called NVX-CoV2705, to approximately 120 participants. This includes adults aged 65 and older, and individuals aged 12 to 64 who have existing health conditions that put them at high risk for severe COVID-19. All participants must have received a previous COVID-19 vaccine at least 90 days before joining this study. Study researchers will be closely monitoring participants for their immune response for 28 days and collecting safety data for 180 days after vaccination.

Type: Interventional

Start Date: Oct 2025

open study

A Study to Evaluate VXA-CoV2-3.3 COVID-19 Vaccine Against Currently Approved/Authorized mRNA COVID-1
Vaxart SARS-CoV2 COVID-19
The primary objective of the study is to determine the relative efficacy of the investigational oral severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) vaccine tablet VXA-CoV2-3.3 compared to a currently recommended vaccine for the prevention of symptomatic Coronavirus Disease 2019 (COVID-1 expand

The primary objective of the study is to determine the relative efficacy of the investigational oral severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) vaccine tablet VXA-CoV2-3.3 compared to a currently recommended vaccine for the prevention of symptomatic Coronavirus Disease 2019 (COVID-19). In order to represent a more recently circulating SARS-CoV-2 variant, the main study endpoints will now evaluate the VXA-CoV2-3.3 (KP.2 strain) vaccine, and not the VXA-CoV2-3.1 (XBB.1.5 strain) vaccine.

Type: Interventional

Start Date: Oct 2024

open study

Water-based Activity to Enhance Recovery in Long COVID-19
VA Office of Research and Development Long COVID
This two-year study will evaluate the feasibility and safety of an exercise + cognitive training program to improve neurological symptoms of long-COVID. This is a two-phased trial: 1) an exercise phase and 2) a cognitive training phase. The exercise phase will be an aquatic based exercise program.1 expand

This two-year study will evaluate the feasibility and safety of an exercise + cognitive training program to improve neurological symptoms of long-COVID. This is a two-phased trial: 1) an exercise phase and 2) a cognitive training phase. The exercise phase will be an aquatic based exercise program. A combination exercise + memory training programs designed for persons with cognitive impairment have significantly improved memory more than other single intervention groups (exercise only, cognitive training only) and given the success of combination training programs with healthy adults, it is important to adapt these programs for persons with neurological symptoms of long-COVID.

Type: Interventional

Start Date: Dec 2024

open study

A Study of Healthy Microbiome, Healthy Mind
Mayo Clinic Critical Illness COVID-19 PICS Cognitive Impairment Mental Health Impairment
Researchers are doing this study to find out if a high fermented food diet is tolerable, and if it will help improve quality of life after surviving a critical illness, including severe COVID-19, by promoting gut health recovery and decreasing gut inflammation. expand

Researchers are doing this study to find out if a high fermented food diet is tolerable, and if it will help improve quality of life after surviving a critical illness, including severe COVID-19, by promoting gut health recovery and decreasing gut inflammation.

Type: Interventional

Start Date: Feb 2024

open study

Fluvoxamine for Long COVID-19
Washington University School of Medicine Long COVID
This clinical trial aims to test the effects of fluvoxamine as a treatment for Long COVID. Fluvoxamine is an FDA approved SSRI for Obsessive Compulsive Disorder (OCD), that has already had success in preventing hospitalization in patients with COVID-19 (STOP COVID and TOGETHER trials). This trial i1 expand

This clinical trial aims to test the effects of fluvoxamine as a treatment for Long COVID. Fluvoxamine is an FDA approved SSRI for Obsessive Compulsive Disorder (OCD), that has already had success in preventing hospitalization in patients with COVID-19 (STOP COVID and TOGETHER trials). This trial is testing whether fluoxamine helps to improve symptoms and the negative impacts of long COVID in residents of Missouri and Illinois.

Type: Interventional

Start Date: May 2023

open study

Performance Evaluation of LumiraDx COVID-19 (SARS-CoV-2) Ag ULTRA Test
LumiraDx UK Limited COVID-19
Performance of the LumiraDx SARS-CoV-2 Ag ULTRA assay will be assessed by comparison to a reference method expand

Performance of the LumiraDx SARS-CoV-2 Ag ULTRA assay will be assessed by comparison to a reference method

Type: Observational

Start Date: Jun 2022

open study

Leveraging Social Networks to Increase COVID-19 Testing Uptake
New York State Psychiatric Institute Covid-19 Substance Use Opioid Use
This two-year project will adapt and conduct a trial examining the ability of two recruitment strategies, chain-referral and credible messenger, to reach those who use opioids and other substances in order to increase their uptake of onsite point of care COVID-19 testing that will be delivered in t1 expand

This two-year project will adapt and conduct a trial examining the ability of two recruitment strategies, chain-referral and credible messenger, to reach those who use opioids and other substances in order to increase their uptake of onsite point of care COVID-19 testing that will be delivered in two community based organizations (CBOs): Alliance for Positive Change and Argus Health Inc. In Phase 1, Adapt two implementation strategies to support COVID-19 testing uptake and sustainability, adapting elements of existing efficacious social network-based interventions via a CBPR approach. In Phase 2, we will examine and compare the efficacy of two sets of implementation strategies on (i) reach, (ii) testing uptake, (iii) service delivery (i.e. quarantine, medical care, contact tracing) and (iv) sustainability for individuals who use opioids and other drugs. In Phase 3, Elucidate and compare the system/organizational-, staff-, and individual-level factors that influence implementation (i.e. fidelity, acceptability, feasibility, sustainability) of the strategies to develop a plan for dissemination and scale-up in other CBOs who serve opioid and other substance using individuals in NYC.

Type: Interventional

Start Date: Apr 2021

open study

Research & Evaluation of LumiraDx SARS-CoV-2 (COVID-19) Point of Care Ab Test
LumiraDx UK Limited Covid19
Evaluation of the agreement between fingerstick samples, venous blood, serum and plasma samples when using the LumiraDx SARS-CoV-2 Ab Test against the reference method, using standard qualitative comparison techniques. expand

Evaluation of the agreement between fingerstick samples, venous blood, serum and plasma samples when using the LumiraDx SARS-CoV-2 Ab Test against the reference method, using standard qualitative comparison techniques.

Type: Observational

Start Date: Jul 2020

open study

Performance Evaluation of LumiraDx COVID-19 (SARS-CoV-2) Ag Test
LumiraDx UK Limited Covid19
Performance of the LumiraDx SARS-CoV-2 Ag assay will be assessed by comparison to a reference method. expand

Performance of the LumiraDx SARS-CoV-2 Ag assay will be assessed by comparison to a reference method.

Type: Observational

Start Date: Jun 2020

open study