Background: Coronavirus 2019 (COVID-19, or SARS-CoV-2) is a serious public health problem, and genetics may play a role in how serious the illness becomes in certain people. Genes are the instructions that our body uses to grow and develop. Variations in our genes can cause medical conditions and may be the reason why some people get sicker than others. Objective: This study aims to learn more about the genetic contributions to the severity of COVID-19. We hope to use this information to develop therapies that reduce the severity of COVID-19 symptoms in some people. Eligibility: Anyone located in the United States who has tested positive for SARS-CoV-2 infection may be eligible to join (including NIH staff). Design: Participants will complete a questionnaire about their health history and COVID-19 symptoms. Participants will give a blood or saliva sample. It will be about 2 tablespoons of blood, or we will send a saliva collection kit. Researchers will use this blood or saliva sample to study the participant s DNA. The data about participants genes will be stored in a large database. The database will be shared with other qualified researchers who are trying to learn about COVID-19. Participants names and other personal details will not be shared. Instead, the data will be labeled with a code. Participants may be contacted by study team members for up to a year after they join the study.

Type: Observational

Start Date: May 2020

open study

The main purpose of this study is to test an investigational drug known as VYD2311, which is being developed to lower the risk of getting COVID-19. VYD2311 is a monoclonal antibody that attaches to the virus that causes COVID-19 and helps block it from entering your cells. It is being tested in adults and adolescents at least 12 years old. Participants in this study will be given a "study drug" that will be either VYD2311 or placebo. The study drug will be given as a shot into the muscle in the participant's upper thigh or upper arm once a month with a total of 3 shots during the study. This study will help researchers see how well VYD2311 works to prevent COVID-19 during the 90 days after the first shot. The study will also look at the safety and tolerability of VYD2311, how the study drug is processed by the body (pharmacokinetics), how the immune system reacts to the study drug (immunogenicity), and how well VYD2311 can block the virus from infecting cells (neutralization). To do these tests, your blood will be drawn at certain times during the study.

Type: Interventional

Start Date: Jan 2026

open study

This study is a platform protocol designed to be flexible so that it is suitable for a wide range of settings within health care systems and in community settings where it can be integrated into COVID-19 programs and subsequent treatment plans. This protocol is a prospective, multi-center, multi-arm, randomized, controlled platform trial evaluating various interventions for use in the treatment of autonomic dysfunction symptoms, including cardiovascular complications and postural orthostatic tachycardia syndrome (POTS), in Post-Acute Sequelae of SARS-CoV-2 infection (PASC) participants. The interventions tested will include non-pharmacologic care and pharmacologic therapies with study drugs.

Type: Interventional

Start Date: Mar 2024

open study

For caregivers in the Bronx, the pandemic has caused unprecedented psychological distress; in addition to combating social determinants of health (SDOH), these families now face greater financial insecurity and challenges related to their school-aged children. Furthermore, social distancing requirements and limited telehealth resources for Bronx families have posed greater barriers to healthcare. Such parental distress contributes to heightened risk of transgenerational cycles of psychological stress, trauma and maltreatment. The social and economic impacts of the COVID-19 pandemic have had significant consequences for family well-being, putting parents at higher risk of experiencing distress and potentially impairing their ability to provide supportive care to their children. Although children may be less susceptible to the most damaging physical consequences of COVID-19, there are growing concerns regarding the short-and long-term impacts of pandemic-related stressors on children. The marked upheaval of family life over an extended period may make children vulnerable to mental health consequences associated with the public health crisis and infection mitigation efforts. School and childcare closures, unstable financial circumstances, social isolation and lack of support have a disproportionate, cumulative impact on parents and may undermine their capacities to provide support for their children. Importantly, a large body of evidence suggests that parental stress during times of disasters induces psychopathologies in family members including children. Further, high anxiety and depressive symptoms in parents during the pandemic have been associated with higher child abuse potential, whereas greater parental support was associated with lower perceived stress and child abuse potential. In addition to psychological impacts, stress associated with caregiving can interfere with parents' ability to maintain their own health. This multimodal study addresses key strategies to mitigate the psychological and health impact of COVID-19 in parents.

Type: Interventional

Start Date: Dec 2021

open study

Conducting an initial small, controlled clinical pharmacology trial to assess for therapeutic biologics activity (proof-of-concept) that suggests the potential for clinical benefit of COVID-19 patients with controlled cancers. 1. Treat Infection of Multiple Gene Mutation COVID-19 Virus Strains. 2. Activate Human Antigen Presentation Reaction to COVID-19 Specific Antigen. 3. The human antigen presenting cells (APCs) can take up and process COVID-19 target antigen protein into small peptide fragments, and then COVID-19 virus can be killed by APCs directly.

Type: Interventional

Start Date: May 2025

open study

Background: Loss of the sense of smell can seriously affect a person's quality of life. The ability to smell can be damaged by many factors, including illnesses, injuries, and exposure to toxic chemicals. The effects can vary, including complete loss of smell, partial loss, and parosomia, which is when things smell differently than they should. Objective: To study how brain function changes in people with different types of smell disorders. Also, to look at how smell loss affects quality of life over time. Eligibility: People aged 18 years or older with a disorder that affects their sense of smell. Healthy volunteers are also needed. Design: Participants will have 5 study visits over 1 year. They will have various tests and procedures: Smell tests. They will have several tests that involve smelling different items and answering questions. Questionnaires. They will answer questions about their health, mood, sense of smell, and daily habits. Magnetic resonance imaging (MRI) scans. They will lie on a bed that slides into a tube. Padding will hold their head still. They will smell different odors while in the scanner. Electrobulbogram (EBG). They will wear a soft cap with sensors that measure brain activity. They will smell different odors while wearing the cap. Nasal endoscopy. A flexible tube will be inserted into a nostril to view the inside of the nose. Biopsy. A numbing substance will be sprayed into the nose. Then a scissor-like tool will be used to collect a sample of tissue from one or both nasal passages. Samples of blood, urine, and nasal fluid will be taken.

Type: Observational

Start Date: Jun 2026

open study

Background: SARS-CoV-2 is the virus that causes COVID-19. Some people who recover from COVID-19 have symptoms that last long after the active infection ends. This is called long COVID. Sometimes, long COVID can affect the nerves and cause problems with sleep, thinking, the senses, and movement. Researchers want to find out whether people with long COVID have retained inactive remnants of SARS-CoV-2 in their bodies. Objective: To collect tissue samples to see if people with long COVID have remnants of SARS-CoV-2 in their bodies. Eligibility: People 18 years or older who have recovered from COVID-19, both with and without neurologic symptoms. Design: Participants will have 2 to 6 inpatient or outpatient visits over 4 months. Each visit will last 4 to 5 days. Participants will be screened to make sure it is safe to collect tissue samples from their body. They will have a physical and dental exam. They will have imaging scans and a test of their heart function. They will complete questionnaires about their health. They will give blood, urine, saliva, and stool samples. Their sense of taste and smell will be tested. Tissue samples will be taken from the digestive tract, lungs, colon, skin, muscle, lymph nodes, nasal passages, and mouth. Participants may be numbed or sedated for some of the procedures. Swabs will be used to collect cells from inside the mouth and nose. Participants will undergo lumbar puncture. A thin needle will be inserted into their lower back to draw out a sample of the fluid around their spinal cord. Participants will have follow-up phone calls after each clinic visit.

Type: Observational

Start Date: Mar 2025

open study

The purpose of this study is to evaluate the immunogenicity and safety of the recommended variant-containing formulations of mRNA-1283 COVID-19 vaccine (mNEXSPIKE®) within the current epidemiological environment.

Type: Interventional

Start Date: Jul 2025

open study

Long COVID is a condition where debilitating symptoms can persist for months after a COVID-19 infection. This study aims to evaluate the effects of NE3107 on several neurological symptoms reported in people with Long COVID including difficulty concentrating or remembering things ("brain fog") and fatigue. Researchers will compare NE3107 to a placebo (a look-alike substance that contains no drug) to see if NE3107 works to treat neurocognitive and fatigue symptoms of long COVID. Participants will: - Take NE3107 or a placebo twice daily for 84 days - Visit the clinic 5 times for checkups and tests and have a follow up phone call

Type: Interventional

Start Date: Apr 2025

open study

This is a Phase 1 non-randomized, open-label, multiple dose, parallel-group study of ALG-097558 in subjects with severe renal impairment and subjects without renal impairment, matched for age, body weight and, to the extent possible, for gender. The primary purpose of this study is to characterize the effect of renal impairment on the plasma pharmacokinetics of ALG-097558 following administration of multiple, twice daily (Q12H) oral (PO) doses.

Type: Interventional

Start Date: Feb 2025

open study

The goal of this preliminary study is to test methods and procedures to be used in a fully-powered trial to evaluate acupuncture treatment effectiveness. Specifically, we will test the feasibility of conducting a 2-arm randomized clinical trial for evaluating the effectiveness of acupuncture for pain in patients with long COVID. Researchers will compare pain intensity and impact on general activities over 5 months in those who receive acupuncture treatment compared to patients who are receiving usual long COVID care. Participants will complete 4 online surveys at weeks 0, 4, 8, and 20. These surveys include validated mental and physical health questionnaires. Participants who are randomly selected to receive the intervention will receive 8 acupuncture treatment sessions.

Type: Interventional

Start Date: Jun 2024

open study

SARS-CoV-2 transmission was expected to have a devastating impact in sub-Saharan African countries. Instead, morbidity and mortality rates in nearly the whole region are an order of magnitude lower than in Europe and the Americas. To identify what is different requires a better understanding of the underlying immunological substrate of the population, and how these factors affect susceptibility to infection, progression of symptoms, transmission, and responses to SARS-CoV-2 vaccination. Study objectives 1. Determine the risk and predictors of infection and disease among contacts of SARS-CoV-2 infection subjects in Malawi 2. Determine whether innate immune responses lower the risk of SARS-CoV-2 infection and disease, and acquisition and duration of vaccine responses. 3. Assess whether alterations in innate immune responses relevant to SARS-CoV-2 are associated with malaria or intestinal parasite infections. 4. Assess the acquisition and longevity of antibodies (Ab) and cellular adaptive responses elicited by SARS-CoV-2 infection and vaccination. 5. Assess whether malaria and intestinal parasite infections, chronic/mild undernutrition, and anemia mediate alterations in Ab and other adaptive cellular responses to SARS-CoV-2 through innate immune responses or a different unknown mechanism.

Type: Observational

Start Date: Jan 2023

open study

Conduct a study of people who use drugs (PWUD) perceptions of and access to COVID-19 vaccines as well as reasons for vaccine hesitancy/barriers

Type: Interventional

Start Date: Jan 2023

open study

This study evaluates immunologic response following COVID-19 vaccination in children, adolescents, and young adults with cancer. Vaccines work by stimulating the body's immune cells to respond against a specific disease. The immune response produces protection from that disease. Effects from cancer and from treatments for cancer can reduce the body's natural disease fighting ability (called immunity). Factors such as vaccine type, timing of vaccine dosing related to treatment for cancer and number of vaccine doses or "boosts" (extra vaccine shots) may strengthen or diminish the body's protective immune response. This study may help researchers learn more about how the body's immune system responds to the COVID-19 vaccine when the vaccination is given during or after cancer treatment.

Type: Observational

Start Date: Apr 2022

open study

Multicenter, prospective, randomized controlled trial providing mobile health supported physical rehabilitation to 120 patients who have been critically ill with COVID-19 and who complete at least one exercise session.

Type: Interventional

Start Date: Feb 2023

open study

Web-enabled virtual topical guide: develop virtual conversations for each concern and intensity level

Type: Observational

Start Date: Mar 2022

open study

This study investigates patients' perceptions of their doctor's or nurse's empathy during an in-person interaction with the doctor or nurse wearing personal protective equipment (PPE) compared to during a video interaction with the doctor or nurse without PPE. The goal of this research study is to learn whether patients who visit the Acute Cancer Care Center at MD Anderson believe they get better (more empathetic) care from doctors who visit them in person wearing PPE or from doctors who visit them by video call and do not wear PPE.

Type: Interventional

Start Date: Jun 2021

open study

The purpose of this Phase III study is to assess the efficacy, safety, and immunogenicity of two CoV2 preS dTM-AS03 vaccines (monovalent and bivalent) as part of primary series vaccinations in a multi-stage approach, as well as a booster injection of a CoV2 preS dTM-AS03 vaccine, in adults 18 years of age and older. A total of approximately 21 046 participants are planned to be enrolled (5080 per study intervention group in Stage 1 and 5443 per study intervention group in Stage 2). Initial, double-blind, primary series study design is planned for 365 days post-last Initial injection (ie, approximately 386 days total) for each participant. Based on decisions of the Study Oversight Group, Stage 1 and Stage 2 participants will be invited to participate in an unblinded Crossover / Booster study design with duration as follows: - For participants who initially received vaccine: 12 months post-booster (ie, approximately 18 to 24 months) - For participants who initially received placebo: ≥ 4 months post-last dose of the primary series + 12 months post-booster (ie, approximately 28 to 34 months) - For participants who do not consent to continue in the unblinded Crossover / Booster part of the study, all study procedures will be stopped and participants will be discontinued from the study.

Type: Interventional

Start Date: May 2021

open study

Tocilizumab is an effective treatment for severe coronavirus disease 2019 (Covid-19) pneumonia and related inflammation. Given limited global supplies, clarification of the optimal tocilizumab dose is critical. We conducted an open-label, randomized, controlled trial evaluating two different dose levels of tocilizumab in Covid-19 (40mg and 120mg). Randomization was stratified on remdesivir and corticosteroid at enrollment. The primary outcome was the time to recovery. The key secondary outcome was 28-day mortality.

Type: Interventional

Start Date: Sep 2020

open study

This is a prospective cohort observational registry study that will include data on all patients who are treated at MHS facilities for COVID-19.

Type: Observational

Start Date: Jun 2020

open study

Our long-term goal is to protect the health care workforce (HCW) caring for SARS-CoV-2-infected patients, their families, communities, and the general population. Our specific objective is to rapidly establish a prospective cohort to characterize the factors related to viral transmission and disease severity in a large healthcare system. We addressed this hypothesis by recruiting and longitudinally following 546 HCW and a comparison group of 283 non-HCW within a large academic health system, Rutgers Biomedical and Health Sciences (RBHS). By intensively following participants over a several year period (2020-2024) and collecting serial biospecimens (nasopharyngeal/throat swabs, blood, and saliva) and questionnaire data at multiple time points, we will uniquely characterize SARS-CoV-2 transmission and risk factors for COVID-19 among HCW and our larger academic community.

Type: Observational

Start Date: Apr 2020

open study

The purpose of this research is to find out if Positron Emission Tomography (PET) imaging with an investigational drug called C-11 ER176 can help us learn more about Post-COVID Syndrome.

Type: Observational

Start Date: May 2026

open study

The purpose of this study is to evaluate the efficacy and safety of mRNA-1283 and mRNA-1273 (variant formulations) in adults 50 to 64 years of age without high risk factors for severe COVID-19.

Type: Interventional

Start Date: Nov 2025

open study

Plain Language Summary: This study is a clinical trial to see if ketamine can help treat symptoms of Long COVID, especially fatigue and problems with thinking clearly (often called "brain fog"). Long COVID is a condition that affects people even after they have recovered from COVID-19, causing ongoing health issues like tiredness, memory problems, and difficulty concentrating. Right now, there are very few treatments available for these symptoms, and many people are looking for new options to feel better. What is the study trying to find out? Does ketamine help reduce fatigue and improve thinking skills in people with Long COVID? Does ketamine improve overall quality of life and mental health for people with Long COVID? Is ketamine safe and well-tolerated for people with Long COVID? How does ketamine affect the body's biological processes, like inflammation and brain function? How will the study work? The study will include 20 adults between 18 and 65 years old who have Long COVID symptoms like fatigue or brain fog. Participants will first meet with researchers to answer health questions, take surveys about their symptoms, and do tests to check their thinking skills. All participants will also have a brain scan (MRI) and give a blood sample to look at markers of inflammation. Participants will then receive four ketamine treatments over two weeks at a specialized clinic. The ketamine will be given as an injection, with the dose slightly increasing during the treatment period. After six weeks, participants will return for follow-up tests to see if their symptoms have improved. This includes repeating the surveys, thinking tests, MRI and blood test. Why ketamine? Ketamine is a medicine originally used for anesthesia but has also been found to help with depression and other mental health issues. Researchers think it might help with Long COVID symptoms because it can reduce inflammation in the brain and improve how the brain functions. People with Long COVID often have signs of inflammation and changes in brain chemicals, which ketamine might help balance. What are the potential benefits? Participants might experience less fatigue and clearer thinking after ketamine treatment. They could also feel better overall in terms of mood and quality of life. Since ketamine can work quickly, some people may notice improvements shortly after starting the treatment. What are the risks? Ketamine can cause side effects like feeling dizzy, anxious, or having an unusual sense of reality (sometimes called dissociation). It may also cause temporary increases in blood pressure or heart rate. All treatments will be carefully monitored by healthcare professionals to ensure safety. Who can participate? Adults aged 18-65 with Long COVID who have significant fatigue or thinking problems can join. People will not be able to participate if they have certain health conditions like severe heart disease, uncontrolled high blood pressure, or a history of severe mental health disorders. Why is this study important? Long COVID affects millions of people, and many are struggling to find treatments that work. This study is one of the first to explore ketamine as a potential treatment for Long COVID symptoms. If ketamine helps, it could lead to more research and eventually new treatment options for people living with Long COVID.

Type: Interventional

Start Date: Apr 2025

open study

The purpose of this study (Part 1 and Part 2) is to evaluate the relative vaccine efficacy (rVE), safety, reactogenicity, and immunogenicity of mRNA-1283.222 versus mRNA-1273.222 (Part 1) and mRNA-1283.815 versus mRNA-1273.815 (Part 2).

Type: Interventional

Start Date: Mar 2023

open study