2,196 matching studies

Sponsor Condition of Interest
A Study of Amantadine for Cognitive Dysfunction in Patients With Long-Covid
University of Texas Southwestern Medical Center Long COVID Post-Acute COVID-19 Syndrome
Purpose: To decrease symptom burden, improve cognitive function, improve endurance, and decrease fatigue in subjects with post-acute sequelae of COVID-19 (PASC) or "long-hauler" COVID using amantadine. If amantadine use is determined to be efficacious in this population, the findings of this study1 expand

Purpose: To decrease symptom burden, improve cognitive function, improve endurance, and decrease fatigue in subjects with post-acute sequelae of COVID-19 (PASC) or "long-hauler" COVID using amantadine. If amantadine use is determined to be efficacious in this population, the findings of this study will be used towards a subsequent randomized control trial.

Type: Interventional

Start Date: Jun 2025

open study

PROmotion of COVID-19 BOOSTer VA(X)Ccination in the Emergency Department - PROBOOSTVAXED
University of California, San Francisco COVID-19
The goal of this cluster randomized clinical trial is to test the efficacy of messaging interventions to increase booster vaccine uptake in adults in the emergency department(ED). The main question[s] and goals of this study are: - does the intervention of vaccine messaging increase booster vac1 expand

The goal of this cluster randomized clinical trial is to test the efficacy of messaging interventions to increase booster vaccine uptake in adults in the emergency department(ED). The main question[s] and goals of this study are: - does the intervention of vaccine messaging increase booster vaccine uptake at 30 days post ED visit? - does the intervention of asking about vaccine acceptance increase booster vaccine uptake at 30 days post ED visit? - considering recent national changes to funding and availability of updated vaccines, the investigators will examine the effects of these changes on vaccine acceptance and uptake in ED populations. Specifically, they will stratify EDs and ED patients according to the ED availability of vaccines, and they will also examine whether costs and availability of vaccines are a deterrent to patient acceptance and uptake of vaccines

Type: Interventional

Start Date: Jan 2024

open study

Effects of Immulina TM Supplements With PASC Patients
University of Mississippi Medical Center Post Acute COVID-19 Syndrome
This is a multi-site study that will try to determine the effects of Immulina ™, a natural dietary supplement, on blood chemicals associated with inflammation that are often increased in patients with long COVID (also called PASC). expand

This is a multi-site study that will try to determine the effects of Immulina ™, a natural dietary supplement, on blood chemicals associated with inflammation that are often increased in patients with long COVID (also called PASC).

Type: Interventional

Start Date: Jul 2023

open study

Does a Technology Enabled Multi-disciplinary Team-based Care Model for the Management of Long COVID1
Family Health Centers of San Diego SARS-CoV-2 Acute Respiratory Disease Myalgic Encephalomyelitis Chronic Fatigue Syndrome Post-acute Sequelae of SARS-COV-2 Infection Post COVID-19 Condition
The primary objective of the present research is to determine the effectiveness of Family Health Center of San Diego's Long COVID and Fatiguing Illness Recovery Program (LC&FIRP) on clinician- and patient-level outcomes. LC&FIRP is comprised of a teleECHO program focused on multi-specialty case-con1 expand

The primary objective of the present research is to determine the effectiveness of Family Health Center of San Diego's Long COVID and Fatiguing Illness Recovery Program (LC&FIRP) on clinician- and patient-level outcomes. LC&FIRP is comprised of a teleECHO program focused on multi-specialty case-consultation and peer-to-peer sharing of emerging best practices to support management of complex cases associated with Long COVID, Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), and other post-infectious fatiguing illnesses (PIFI). Our secondary objective is to determine the feasibility, acceptability, and sustainability of LC&FIRP. Our findings should provide a fuller understanding of the potential impact of innovative technology enabled multi-disciplinary team-based care models in low-resource, community-based primary care settings.

Type: Interventional

Start Date: Nov 2021

open study

COVID-19 Booster Vaccine in Autoimmune Disease Non-Responders
National Institute of Allergy and Infectious Diseases (NIAID) Rheumatoid Arthritis (RA) Systemic Lupus Erythematosus (SLE) Pemphigus Vulgaris Multiple Sclerosis (MS) Systemic Sclerosis (SSc)
This is a randomized, multi-site, adaptive, open-label clinical trial comparing the immune response to different additional doses of COVID-19 vaccine in participants with autoimmune disease requiring IS medications. All study participants will have negative serologic or suboptimal responses (define1 expand

This is a randomized, multi-site, adaptive, open-label clinical trial comparing the immune response to different additional doses of COVID-19 vaccine in participants with autoimmune disease requiring IS medications. All study participants will have negative serologic or suboptimal responses (defined as a Roche Elecsys® Anti-SARS-CoV-2 S result ≤200 U/mL) or a low immune response (defined as a Roche Elecsys® Anti-SARS-CoV-2 S result >200 U/ml and ≤2500 U/mL) to their previous doses of COVID-19 vaccine. The study will focus on 5 autoimmune diseases in adults: - Systemic Lupus Erythematosus (SLE) - Rheumatoid Arthritis (RA) - Multiple Sclerosis (MS) - Systemic Sclerosis (SSc), and - Pemphigus. This study will focus on 4 autoimmune diseases in pediatric participants: - Systemic Lupus Erythematosus (SLE) - Juvenile Idiopathic Arthritis (JIA) - Pediatric-Onset Multiple Sclerosis (POMS) - Juvenile Dermatomyositis (JDM)

Type: Interventional

Start Date: Aug 2021

open study

RCT of Mushroom Based Natural Product to Enhance Immune Response to COVID-19 Vaccination
University of California, San Diego COVID-19 Vaccination
This is a randomized, double-blind, placebo-controlled clinical trial to evaluate the effect of two polypore mushrooms, Fomitopsis officinalis and Trametes versicolor (FoTv), for use as an adjunct to vaccination for COVID-19 in a general population at the time of COVID-19 vaccination. expand

This is a randomized, double-blind, placebo-controlled clinical trial to evaluate the effect of two polypore mushrooms, Fomitopsis officinalis and Trametes versicolor (FoTv), for use as an adjunct to vaccination for COVID-19 in a general population at the time of COVID-19 vaccination.

Type: Interventional

Start Date: Jun 2021

open study

A Study to Evaluate the Safety, Reactogenicity, and Effectiveness of mRNA-1273 Vaccine in Adolescen1
ModernaTX, Inc. SARS-CoV-2
The mRNA-1273 vaccine is being developed to prevent COVID-19, the disease resulting from Severe Acute Respiratory Syndrome coronavirus (SARS-CoV-2) infection. The study is designed to primarily evaluate the safety, reactogenicity, and effectiveness of mRNA-1273 vaccine administered as primary serie1 expand

The mRNA-1273 vaccine is being developed to prevent COVID-19, the disease resulting from Severe Acute Respiratory Syndrome coronavirus (SARS-CoV-2) infection. The study is designed to primarily evaluate the safety, reactogenicity, and effectiveness of mRNA-1273 vaccine administered as primary series and a booster dose (BD) to an adolescent population. The study will also evaluate the safety and immunogenicity of an mRNA-1273.222 vaccine against the SARS-CoV- 2 omicron variant as a primary series.

Type: Interventional

Start Date: Dec 2020

open study

A Study of Auxora in Patients With Severe COVID-19 Pneumonia
CalciMedica, Inc. Pneumonia
Part 1 of this trial enrolled 30 patients to receive Auxora (formerly CM4620) in a 2:1 randomized, open label trial of patients with severe and critical COVID-19 pneumonia. Part 2 of this study randomized 284 patients and was a randomized, double blind, placebo-controlled (RCT) study that evaluated1 expand

Part 1 of this trial enrolled 30 patients to receive Auxora (formerly CM4620) in a 2:1 randomized, open label trial of patients with severe and critical COVID-19 pneumonia. Part 2 of this study randomized 284 patients and was a randomized, double blind, placebo-controlled (RCT) study that evaluated the efficacy, safety, and the pharmacokinetic profile of Auxora in patients with severe COVID-19 pneumonia. The number of patients with an imputed PaO2/FiO2 >200 randomized into the study was capped at 26. Another 258 patients with a PaO2/FiO2 ≤200 were enrolled. Patients with an estimated PaO2/FiO2 of 75-200 were stratified to ensure balanced randomization between the Auxora and placebo arms. Subgroup analyses were performed to explore how time to recovery is influenced by baseline variables and to evaluate the treatment effect at different levels of each of these variables. The dose of Auxora was 2.0 mg/kg (1.25 mL/kg) administered at 0 hour, and then 1.6 mg/kg (1 mL/kg) at 24 hours and 1.6 mg/kg (1 mL/kg) at 48 hours from the SFISD. The dose of placebo was 1.25 mL/kg administered at 0 hour and then 1 mL/kg at 24 hours and 1 mL/kg at 48 hours from the SFISD. Remdesivir, corticosteroids and convalescent plasma were allowed. The infusion of Auxora / Placebo started within 12 hours from the time the patient or LAR provided informed consent. Efficacy analyses will be presented by treatment group (Auxora vs Placebo) based on the Efficacy Analysis Set of the imputed PaO2/FiO2 ≤200 subgroup, except where it is specified otherwise. The statistical analysis approach was designed to assess the significance of the primary and first secondary endpoint using the Benjamini and Hochberg method to control the overall trial level alpha level.

Type: Interventional

Start Date: Apr 2020

open study

Open-label Study of APX001 for Treatment of Patients With Invasive Mold Infections Caused by Asperg1
Basilea Pharmaceutica Invasive Fungal Infections
This is a Phase 2, multicenter study to evaluate APX001 for the treatment of invasive fungal infections caused by Aspergillus spp. or rare molds (eg, Scedosporium spp., Fusarium spp., and Mucorales fungi). expand

This is a Phase 2, multicenter study to evaluate APX001 for the treatment of invasive fungal infections caused by Aspergillus spp. or rare molds (eg, Scedosporium spp., Fusarium spp., and Mucorales fungi).

Type: Interventional

Start Date: Jan 2020

open study

ARrest RESpiraTory Failure From PNEUMONIA
Stanford University Pneumonia Hypoxemia Acute Respiratory Failure COVID-19 Pneumonia
This research study seeks to establish the effectiveness of a combination of an inhaled corticosteroid and a beta agonist compared to placebo for the prevention of acute respiratory failure (ARF) in hospitalized patients with pneumonia and hypoxemia. expand

This research study seeks to establish the effectiveness of a combination of an inhaled corticosteroid and a beta agonist compared to placebo for the prevention of acute respiratory failure (ARF) in hospitalized patients with pneumonia and hypoxemia.

Type: Interventional

Start Date: Jun 2020

open study

Microbial and Cytokine Signatures in Long COVID Patients
Palo Alto Medical Foundation Post-Acute COVID-19 Syndrome
We aim at identifying potential biomarkers in plasma indicative of post-acute coronavirus SARS-CoV-2 Syndrome (Long COVID). Our case-control study will compare Long COVID patients to healthy patients from Sutter Health. expand

We aim at identifying potential biomarkers in plasma indicative of post-acute coronavirus SARS-CoV-2 Syndrome (Long COVID). Our case-control study will compare Long COVID patients to healthy patients from Sutter Health.

Type: Observational

Start Date: Jul 2025

open study

Text4Vax: Text Message Reminders for Pediatric COVID-19 and Influenza Vaccines 2024-25 Season
Columbia University Influenza COVID-19 Vaccination Hesitancy
This multi-site study assesses the impact of text message reminders on the receipt of COVID-19 and influenza text message reminders takes place primarily in practices from the American Academy of Pediatrics (AAP) Pediatric Research in Office Settings (PROS) network. expand

This multi-site study assesses the impact of text message reminders on the receipt of COVID-19 and influenza text message reminders takes place primarily in practices from the American Academy of Pediatrics (AAP) Pediatric Research in Office Settings (PROS) network.

Type: Interventional

Start Date: Oct 2024

open study

Study to Evaluate the Safety & Immunogenicity of IMNN-101 Administered in Healthy Adults Previously1
Imunon SARS CoV 2 Infection
This is an open-label phase 1/2, dose-escalation study. Participants will receive a single intramuscular (IM) dose of IMNN-101 on Day 0 in the deltoid muscle and will be followed through 12 months post-vaccination (through Study Day 365). expand

This is an open-label phase 1/2, dose-escalation study. Participants will receive a single intramuscular (IM) dose of IMNN-101 on Day 0 in the deltoid muscle and will be followed through 12 months post-vaccination (through Study Day 365).

Type: Interventional

Start Date: Jun 2024

open study

Kidney Disease After COVID-19
Icahn School of Medicine at Mount Sinai COVID-19 Acute Kidney Injury Chronic Kidney Injury
To understand the long-term epidemiology, develop effective risk-prediction and stratification tools, and understand the pathobiology of kidney disease in COVID-19 survivors. expand

To understand the long-term epidemiology, develop effective risk-prediction and stratification tools, and understand the pathobiology of kidney disease in COVID-19 survivors.

Type: Observational [Patient Registry]

Start Date: Jan 2020

open study

NIH RECOVER Tissue Pathology: Understanding the Long-Term Impact of COVID-19
NYU Langone Health COVID-19 SARS CoV 2 Infection
The Post-Acute Sequelae of SARS-CoV-2 (PASC) Autopsy Study is a cross-sectional study designed to define and characterize the epidemiology, natural history, clinical spectrum, and underlying mechanisms of post-acute effects of SARS-CoV-2 infection in a diverse population representative of the gener1 expand

The Post-Acute Sequelae of SARS-CoV-2 (PASC) Autopsy Study is a cross-sectional study designed to define and characterize the epidemiology, natural history, clinical spectrum, and underlying mechanisms of post-acute effects of SARS-CoV-2 infection in a diverse population representative of the general COVID-19 population in the US. The autopsy study will characterize the pathology of PASC in (i) non-hospitalized patients who die 30 days or later from symptom onset of COVID-19, and (ii) hospitalized patients who die 30 days or later after discharge from a hospitalization for COVID-19. The study will include decedents who had previously fully recovered from SARS-CoV-2 infection (i.e., >30 days from onset in non-hospitalized, or >30 days from discharge in hospitalized patients), and decedents who meet clinical criteria of PASC as defined by the recent World Health Organization publication (see Section 5.4 below). The autopsy study will also explore the pathology of acute SARS-CoV-2 infection in a smaller subset of patients who died 15-30 days from symptom onset. This protocol defines the common set of clinical data elements, autopsy procedures for tissue collection, core measures, pathology protocols, shared pathology tissues, data elements, and methodology. Each investigator site is expected to perform autopsies on the decedents to address the pathophysiology of the potential long-term effects of SARS-CoV-2 infection on human health. The Consortium analysis plan aims to address research questions by incorporating: 1) tissue obtained from autopsies performed at each Phase II participant's site; and 2) tissue available from other pathology investigators/autopsy sites within the Consortium.

Type: Observational

Start Date: Mar 2022

open study

COVID-19 Protection After Transplant Pilot Study
National Institute of Allergy and Infectious Diseases (NIAID) Kidney Transplant Recipients
Antibodies are an important part of the body's defense against infection. Individuals who have no antibodies or very low antibody levels are considered less well protected from Coronavirus Disease 2019 (COVID-19) than those who have higher antibody levels. What level of antibodies is necessary for1 expand

Antibodies are an important part of the body's defense against infection. Individuals who have no antibodies or very low antibody levels are considered less well protected from Coronavirus Disease 2019 (COVID-19) than those who have higher antibody levels. What level of antibodies is necessary for protection is currently unknown. Inadequate antibody response to Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) vaccination has been described among kidney transplant recipients. The aim of this study is to elicit an antibody response to vaccination against SARS-CoV-2 in kidney transplant recipients who have failed to respond to two doses of either the Moderna COVID-19 vaccine or Pfizer-BioNTech Coronavirus Disease 2019 (COVID-19) vaccine.

Type: Interventional

Start Date: Aug 2021

open study

Clinical Trial of Niagen to Examine Recovery in People With Persistent Cognitive and Physical Sympt1
Massachusetts General Hospital Covid19 Sequelae of; Infection Cognitive Symptom
The study will assess whether Niagen, a safe dietary supplement, improves recovery of COVID-19 related symptoms in individuals who were infected at least 2 months prior to study entry ("Long-COVID" "Long-haulers"). 60% of participants will receive Niagen and 40% will receive PBO. Outcomes will cons1 expand

The study will assess whether Niagen, a safe dietary supplement, improves recovery of COVID-19 related symptoms in individuals who were infected at least 2 months prior to study entry ("Long-COVID" "Long-haulers"). 60% of participants will receive Niagen and 40% will receive PBO. Outcomes will consist of standardized cognitive, neuropsychiatric, physical, functional and biomarker assessments.

Type: Interventional

Start Date: Aug 2021

open study

KIDney Injury in Times of COVID-19 (KIDCOV)
University of California, San Francisco SARS-CoV Infection Covid19 Corona Virus Infection Acute Kidney Injury Kidney Injury
There is an unmet need to evaluate the impact of sub-clinical/mild COVID19 disease in the outpatient setting on prevalent and incident renal injury, as this data is currently unavailable. To capture the diversity of race/ethnic risk and COVID19 related municipal shelter-in-place guidance, the inves1 expand

There is an unmet need to evaluate the impact of sub-clinical/mild COVID19 disease in the outpatient setting on prevalent and incident renal injury, as this data is currently unavailable. To capture the diversity of race/ethnic risk and COVID19 related municipal shelter-in-place guidance, the investigators will enroll COVID19-negative and COVID19-positive samples balanced by race/ethnicity from 3 different states, California, Michigan, and Illinois. Study endpoints will be assayed from urine samples mailed to the study team at 2, 6, and 12 months after their date of PCR test, with no requirement for these individuals to leave their homes to participate.

Type: Observational [Patient Registry]

Start Date: Mar 2021

open study

General Psychological Distress, PTSD, and Co-Morbidities in Healthcare Workers Consequent to COVID-1
Weill Medical College of Cornell University Post-traumatic Stress Disorder Moral Injury
It is expected that large numbers of healthcare workers will experience a broad range of psychological reactions and symptoms including anxiety, depression, moral distress, and trauma symptoms that will cause both significant suffering as well as occupational and social impairment. The purpose of t1 expand

It is expected that large numbers of healthcare workers will experience a broad range of psychological reactions and symptoms including anxiety, depression, moral distress, and trauma symptoms that will cause both significant suffering as well as occupational and social impairment. The purpose of this study is to find interventions which are helpful in treating psychological distress in healthcare workers caring for COVID-19 patients. There are two phases of the study. All participants will take part in Phase I, which consists of 4 sessions over a two-week period of either a narrative writing intervention or a medical music intervention. Participants will be randomly assigned to the narrative writing intervention or medical music intervention. After Phase I, participants will be re-assessed. Healthcare workers who meet criteria for PTSD will be given the option to participate in Phase II of the study, in which they will be offered a choice between one of two evidence-based treatments for PTSD: Interpersonal Therapy (IPT) or Exposure Therapy (ET). Both treatments are comprised of ten 75-minute sessions scheduled twice weekly. Participants will be allowed to choose a preferred treatment in Phase II. After Phase II participants will complete a final assessment concluding the study. All interventions will be offered using distance technology.

Type: Interventional

Start Date: Jan 2022

open study

Duke COVID-19 Shared Data and Specimen Repository
Duke University COVID-19
The purpose of this data repository is to provide a secure and centralized storage location and resource for the collection of essential data and medical specimens, across COVID-19 related protocols at Duke. expand

The purpose of this data repository is to provide a secure and centralized storage location and resource for the collection of essential data and medical specimens, across COVID-19 related protocols at Duke.

Type: Observational [Patient Registry]

Start Date: Apr 2020

open study

A Randomized Trial Evaluating a mRNA-VLP Vaccine's Immunogenicity and Safety for COVID-19
AstraZeneca COVID-19 SARS-CoV-2 Infection
The purpose of this study is to characterize the safety and immunogenicity of AZD9838 and AZD6563 when administered as a single dose vaccination against SARS-CoV-2 in adults. expand

The purpose of this study is to characterize the safety and immunogenicity of AZD9838 and AZD6563 when administered as a single dose vaccination against SARS-CoV-2 in adults.

Type: Interventional

Start Date: Nov 2023

open study

Phase 3 Study of S-217622 in Prevention of Symptomatic SARS-CoV-2 Infection
Shionogi SARS-CoV-2 Infection
The purpose of this study is to measure the proportion of participants who are infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (positive reverse transcription polymerase chain reaction [RT-PCR] test) and have coronavirus disease 2019 (COVID-19) symptom(s) with S-217622 ta1 expand

The purpose of this study is to measure the proportion of participants who are infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) (positive reverse transcription polymerase chain reaction [RT-PCR] test) and have coronavirus disease 2019 (COVID-19) symptom(s) with S-217622 tablets compared with placebo tablets in participants who are household contacts of an individual with symptomatic COVID-19.

Type: Interventional

Start Date: Jun 2023

open study

Examining How a Facilitated Self-Sampling Intervention and Testing Navigation Intervention Influenc1
The University of Texas Health Science Center, Houston COVID-19
Antigen self-testing kits are more available at this stage in the pandemic, but among vulnerable populations, use is still low and instructions for antigen testing are not typically designed for low health literacy populations. Studies are needed to explore access and use of antigen tests among vul1 expand

Antigen self-testing kits are more available at this stage in the pandemic, but among vulnerable populations, use is still low and instructions for antigen testing are not typically designed for low health literacy populations. Studies are needed to explore access and use of antigen tests among vulnerable populations and examine if low-health-literacy-designed interventions improve COVID-19 testing decisions and behaviors. This study will focus on understanding factors associated with rapid COVID-19 testing, specifically. The primary objectives of the embedded study are to 1) Determine the effectiveness of community-level intervention using door-to-door recruitment and education in increasing COVID-19 testing and 2) Compare the effectiveness of the CHW- Facilitated Self-Sampling Intervention (FSSI) vs. CHW Testing Navigation Intervention (TNI).

Type: Interventional

Start Date: Mar 2023

open study

Dulce Digital-COVID Aware (DD-CA) Discharge Texting Platform for US/Mexico Border Hispanics With Di1
Scripps Whittier Diabetes Institute Diabetes Mellitus, Type 2 Covid19
The COVID-19 pandemic has triggered extremely high hospitalization rates where mitigation strategies are urgently necessary to aid vulnerable Hispanic and Latino populations who are experiencing health disparities as well as high type 2 diabetes (T2D) prevalence with poor clinical outcomes when com1 expand

The COVID-19 pandemic has triggered extremely high hospitalization rates where mitigation strategies are urgently necessary to aid vulnerable Hispanic and Latino populations who are experiencing health disparities as well as high type 2 diabetes (T2D) prevalence with poor clinical outcomes when compared to non-Hispanic populations. The supplemental Dulce Digital-COVID Aware (DD-CA) intervention addresses specific barriers in diverse underserved Hispanic and Latino communities to improve glucose control and lower transmission of COVID-19 during a highly vulnerable period post hospitalization discharge, to reduce hospital readmission rates. This supplement will integrate COVID educational messaging with glucose management messaging within a low-cost, easily adoptable digital texting platform and offer critical information in a culturally and linguistically relevant manner to address specific barriers in diverse underserved communities.

Type: Interventional

Start Date: Feb 2021

open study

Study to Determine the Response to COVID-19 Vaccination and Prevalence of COVID-19 in Subjects With1
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Chronic or Recovered Hepatitis B Chronic or Recovered Hepatitis C Chronic or Recovered Hepatitis D NAFLD NASH
Background: The COVID-19 global pandemic killed more than 6 million people worldwide. Several vaccines have been developed against the virus that causes this disease. These vaccines are effective at preventing severe symptoms and death from COVID-19. Some people with chronic liver disease, especia1 expand

Background: The COVID-19 global pandemic killed more than 6 million people worldwide. Several vaccines have been developed against the virus that causes this disease. These vaccines are effective at preventing severe symptoms and death from COVID-19. Some people with chronic liver disease, especially those with an advanced condition called cirrhosis, do not respond to many vaccines as well as healthy people do. The goal of this natural history study is to find out how well people with chronic liver disease respond to the COVID-19 vaccines. Objective: To learn how chronic liver disease affects the body s immune response to vaccination against COVID-19. Eligibility: People aged 18 years or older with chronic liver disease. They must also be enrolled in protocol 91-DK-0214 or 18-DK-0091. Design: Participants will have 3 visits, each spaced 6 months apart. Each visit will last 2 hours. Participants will have their vital signs recorded. These include age, sex, race, height, and weight. They will give their medical history. At each visit, participants will have blood drawn through a needle inserted into a vein in the arm. The sample drawn at each visit will be from 1 to 8 tablespoons. At each visit, participants will fill out a questionnaire. They will answer questions about whether they have been vaccinated against COVID-19; whether they have had COVID-19; and whether they have been exposed to someone who had COVID-19. The questionnaire will take 10 to 15 minutes. Researchers will also look at results of past blood tests from other research studies.

Type: Observational

Start Date: Mar 2023

open study