The objective of this protocol is to use a case-control paradigm to compare the response to an intravenous administration of kisspeptin in individuals with and without post-covid-19 syndrome. The study subjects will receive a single bolus of kisspeptin. This study will utilize the technique of frequent blood sampling (q10 minutes) to provide detailed neuroendocrine characterization of endogenous LH secretion before and after kisspeptin administration. This frequency of blood sampling is required to define the features of LH pulses.

Type: Interventional

Start Date: Dec 2025

open study

The purpose of this trial is to assess the safety and relative efficacy of CVXGA (CVXGA50), a KP.2 containing vaccine, compared to COMIRNATY® (COVID-19 Vaccine, mRNA; 2024-2025 Formula), a currently approved COVID-19 vaccine in the prevention of symptomatic, RT-PCR-confirmed SARS-CoV-2 infection. The trial will enroll up to 434 healthy participants.

Type: Interventional

Start Date: Dec 2024

open study

This study is a retrospective case control analysis on the real-world effectiveness of the Pfizer-BioNTech BNT162b2 vaccine (2024-2025 formulation) against symptomatic SARS-CoV-2 infection among CVS MinuteClinic patients testing for SARS-CoV-2, across different age groups, during periods of various variant circulation, and by months since receipt of vaccine dose.

Type: Observational

Start Date: Nov 2024

open study

The purpose of the study is to evaluate whether ibuzatrelvir is effective and safe in adults and adolescents with COVID-19 who do not need to be in the hospital but who are at high risk for progression to severe disease. Eligible participants will be randomly assigned (by chance) to receive ibuzatrelvir or matching placebo orally for 5 days. Co-administration of locally available standard of care is allowed. The total duration of the study is around 6 months.

Type: Interventional

Start Date: Dec 2024

open study

This study aims to assess the effects of both acute and chronic exposures to hypoxia and hypercapnia in patients with Long COVID syndrome.

Type: Interventional

Start Date: Sep 2024

open study

The goal of this clinical trial is to find out which approach works better in getting more of the friends and connections of Latino adults get vaccinated against COVID-19. The main questions this study aims to answer are: 1. Can teaching people to use motivational interviewing help more friends and connections of Latino adults get the COVID-19 vaccine compared to just giving information about the vaccine? 2. What are the things that make it easier or harder for Latinos and networks to get the COVID-19 vaccine? 3. How does this intervention work in practice so that it can be made available to more people in the future The researchers will compare the vaccine rates of the friends and connections of Latinos who have been trained in motivational interviewing with those who have only been given information about the COVID-19 vaccine. This will help figure out which method works best to encourage more people to get vaccinated.

Type: Interventional

Start Date: Jul 2023

open study

Research suggests that Whole Body Hyperthermia in a sauna-like environment can reduce symptoms related to post-acute sequelae of SARS-CoV-2 (PASC), or Long Covid. The investigators aim to study the feasibility and treatment effect of this procedure for patients experiencing Long Covid symptoms.

Type: Interventional

Start Date: Aug 2026

open study

This study aims to use vaccination information from state vaccine registries linked with HealthVerity insurance claims for the following: - to measure how effective the Pfizer-BioNTech vaccine is at preventing post-COVID conditions. - to understand characteristics of patients who are receiving COVID-19 vaccines. All patients whose information is kept unidentified in the HealthVerity database are eligible to be included for both aims of this study.

Type: Observational

Start Date: Oct 2023

open study

The main goal of this study is to improve dysexecutive symptoms (e.g., sustained attention, processing speed) in patients exhibiting post-acute sequelae of COVID-19 (PASC) through home-based transcranial direct current stimulation (tDCS), a noninvasive method that uses low intensity electric currents delivered to the brain through stimulation electrodes on the scalp.

Type: Interventional

Start Date: Jun 2022

open study

The purpose of this study is to measure immunity to the flu vaccine over time in patients who have had COVID-19 and may have other medical conditions including obesity, type 2 diabetes, chronic fatigue, or long-term COVID-19 symptoms. Adults and children (age 9 to 64) who had been diagnosed with COVID-19 as well as controls without COVID-19 will be invited to participate in this study.

Type: Observational

Start Date: Oct 2020

open study

Background: COVID-19 is an infection caused by a coronavirus. It can affect different parts of the body. For most people, it causes fevers or trouble breathing. Some people can have symptoms long after they recover. Researchers want to learn if there are signs of changes in the nervous system that may be related to COVID-19. Objective: To test the nervous system (the brain and nerves) in people who have had COVID-19 yet still have certain symptoms even after recovering. Eligibility: People age 18 and older who had COVID-19 and still have neurologic symptoms after they recovered from the initial infection. Design: Participants will be screened with a medical record review. Participants will have a neurological exam. They will complete pen-and-paper tests of their memory and thinking. They will complete a smell test with 'scratch-and-sniff' booklets. They will give blood samples. Participants will have magnetic resonance imaging (MRI) of the brain. Soft padding or a coil will be placed around their head. They will lie on a table that slides in and out of the MRI scanner. They will get a contrast dye through an intravenous (IV) catheter. Participants blood pressure, blood flow, skin temperature, sweating, and breathing will be monitored. Participants will have an electrocardiogram to measure heart function. Participants will blow into a mouthpiece for several seconds. Participants will lie on a table that has a motor. The motor tilts the table. Participants will have blood drawn through an IV as the table tilts. Participants will have a lumbar puncture. A small needle will be inserted into the spinal canal to obtain fluid. Participants may repeat some tests 8 weeks to 1 year later.

Type: Observational

Start Date: Oct 2020

open study

Background: COVID-19 is an acute respiratory syndrome. One symptom of COVID-19 is a reduction in the number of cells called lymphocytes in the blood. Lymphocytes are a type of white blood cell that fights infections. With fewer lymphocytes, the body cannot effectively fight back against SARS CoV-2, the virus that causes COVID-19. Researchers want to better understand how SARS-CoV-2 affects these blood cells. This information may give them ideas for new treatments. Objective: To learn more about how SARS-CoV-2 affects lymphocytes, the immune, and the blood clotting system. Eligibility: Adults age 18 and older who either currently have COVID-19 or have recently recovered from it Design: Participants will give a blood sample. For this, a needle is used to collect blood from an arm vein. For participants who have a central line, blood will be collected through that instead. Participants medical records related to COVID-19 will be reviewed. Participants who have recovered from COVID-19 will be asked to undergo leukapheresis to collect white blood cells. For this, blood is taken from a needle placed in one arm. A machine separates out the white blood cells. The rest of the blood is returned to the participant through a needle placed in the other arm. This takes about 2-3 hours. Recovered participants may have material collected from inside the nostrils and/or rectum. This is done by gently rubbing the area with a sterile cotton swab. Recovered participants may have an echocardiogram to look at their heart. For this, a small probe is held against the chest to get pictures of the heart from different angles. This takes less than 30 minutes. Participation lasts 1-2 days on most cases and may be split in a few visits for recovered patients if leukapheresis and echocardiogram are done. ...

Type: Observational

Start Date: May 2020

open study

Background: The SARS-CoV-2 virus has caused a pandemic infection called COVID-19. It is a global threat to people, communities, and health systems. Researchers are concerned about the mental health effects of the pandemic. They want to learn more about how it is affecting people s alcohol use and problems, and how it may continue to affect them over time. Objective: To study the impact of the COVID-19 pandemic on alcohol use and consequences in individuals across the spectrum of alcohol use and those with alcohol use disorder. Eligibility: Participants who have been screened under the NIAAA Screening, Assessment and Management Protocol (14-AA-0181) Design: Participants will complete a baseline survey by phone. It will ask about alcohol use, alcohol dependence, and stress. It covers 2 time periods: the 12 months before the pandemic started and the time since it started. Participants will get an ID code and a link to an online survey. They will complete the online survey within a week of the phone survey. Participants will complete a series of online surveys over 24 months. For the first year, surveys will be completed weekly for the first 4 weeks, then biweekly for the next 8 weeks, and then every 1-2 months for the rest of the year. For the second year, surveys will be completed every 6 months. Surveys will cover the following topics: - Alcohol use and its consequences - Other substance use - Stress - Impact of the COVID-19 pandemic - Pain - Physical health - Sleep - Quality of life. Because the course of the pandemic may change, the frequency of the surveys may change. Participation lasts 2 years.

Type: Observational

Start Date: Jun 2020

open study

The Metrix Respiratory Panel Test will be evaluated for use in Non-Laboratory settings in a home testing environment utilizing the clinical study design described herein. The study will take place in simulated home environments which will be set up within or near active clinical settings (e.g., urgent care facilities). This will be a prospective study conducted at three or more investigational sites located within the United States for the clinical validation of the Metrix Respiratory Panel Test for the detection of SARS-CoV-2, Influenza A, Influenza B, Respiratory syncytial virus, and Rhinovirus in anterior nares (AN) swab samples. Additional sites may be added to the study in order to meet minimum subject/sample enrollment requirements and geographic prevalence of respiratory virus infections. Comparator testing will be performed to determine the infection status of each sample for comparison to results generated by the candidate test. The primary comparator for the study will be an FDA-cleared assay for the detection of SARS-CoV-2, Influenza A, Influenza B, Respiratory Syncytial Virus, and Rhinovirus.

Type: Interventional

Start Date: Nov 2025

open study

The goal of this Phase 2 study is to assess about the safety, antiviral biomarker responses and efficacy of SNG001 when given to patients requiring invasive mechanical ventilation due to a respiratory virus infection. Its ability to speed up virus clearance and reduce mortality, compared with standard of care, will be studied. The study is split into two parts. All participants will receive standard of care in addition to SNG001 or placebo. In Part 1, the safety of SNG001 will be assessed. Participants of 50 years and older will receive study drug or placebo once a day for up to 14 days, whilst in hospital. In Part 2, the primary objective will be the efficacy of SNG001. Participants between 18 and 50 years with an immunocompromising condition and patients over 50 years (with or without an immunocompromising condition) will receive study drug once a day for up to 14 days, whilst in hospital.

Type: Interventional

Start Date: Sep 2025

open study

The purpose of this study is to investigate the immunogenicity of mRNA COVID-19 variant-containing vaccine formulations against the vaccine matched variants and newly emerged variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

Type: Interventional

Start Date: Sep 2024

open study

The LIFT will be conducted at Brigham and Women's Hospital (BWH) of Harvard Medical School, focusing on the effect of Pyridostigmine (Mestinon) and Low-Dose Naltrexone (LDN) in subjects aged 18-70 meeting the Canadian consensus criteria (CCC) for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) as well as having specifically Orthostatic Intolerance (OI). Long COVID (LC) subjects will also be included if they meet CCC and have OI. This double-blind, placebo-controlled study will involve 160 participants randomized into one of four possible groups: Pyridostigmine/LDN (40), Pyridostigmine/Placebo (40), LDN/Placebo (40), Placebo/Placebo (40). The dose of Pyridostigmine will be carefully titrated from 30mg to 60mg three times a day, and the dose of LDN will be titrated from 1.5 mg to 4.5 mg once daily. The trial includes a scale-back plan, allowing participants to reduce their dosage if they experience intolerance symptoms, with adjustments made during weekly visits. This plan provides a personalized approach to medication tolerance, ensuring participant's safety and comfort throughout the trial. The time commitment for the participant is approximately three (3) months, and during this time, there will be three (3) in-person visits to BWH and four (4) virtual visits. Study procedures will include two (2) submaximum cardiopulmonary exercise tests, questionnaires (virtually completed), and blood and urine collection. We will be recruiting from the BWH Dyspnea Clinic as well as the Open Medicine Foundation (OMF) StudyME Registry and anticipate the entire trial will take two (2) years to complete. The LIFT represents a significant endeavor to improve treatment options for ME/CFS patients and contribute to the broader understanding of this debilitating condition.

Type: Interventional

Start Date: Sep 2024

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 PASC participants. The interventions tested will include non-pharmacologic care and pharmacologic therapies with study drugs.

Type: Interventional

Start Date: Mar 2024

open study

Chronic olfactory dysfunction, both hyposmia and parosmia, from the COVID-19 pandemic is a growing public health crisis with up to 1.2 million people in the United States affected. Olfactory dysfunction impacts one's quality of life significantly by decreasing the enjoyment of foods, creating environmental safety concerns, and affecting one's ability to perform certain jobs. Olfactory loss is also an independent predictor of anxiety, depression, and even mortality. Recent research by our group (unpublished data) and suggests that parosmias, moreso than hyposmias, can result in increased rates of anxiety, depression, and even suicidal ideation. While the pandemic has increased the interest by the scientific community in combating the burgeoning health crisis, few effective treatments currently exist for olfactory dysfunction. Persistent symptoms after an acute COVID-19 infection, or "Long COVID" symptoms, have been hypothesized to be a result of sympathetic positive feedback loops and dysautonomia. Stellate ganglion blocks have been proposed to treat this hyper-sympathetic activation by blocking the sympathetic neuronal firing and resetting the balance of the autonomic nervous system. Studies prior to the COVID-19 pandemic have supported a beneficial effect of stellate ganglion blocks on olfactory dysfunction, and recent news reports and a published case series have described a dramatic benefit in both olfactory function and other long COVID symptoms in patients receiving stellate ganglion blocks. A previous pilot study using stellate ganglion blocks of 20 participants with persistent COVID-19 olfactory dysfunction resulted modest improvements in subjective olfactory function, smell identification, and olfactory-specific quality-of-life, but it lacked a control group. Therefore, we propose a double-blinded, placebo-controlled randomized clinical trial assessing the efficacy of a stellate ganglion block versus saline injection in a total of up to 140 participants with persistent COVID-19-associated olfactory dysfunction.

Type: Interventional

Start Date: Oct 2023

open study

The OLE study aims to investigate the safety, efficacy, pharmacodynamics (PD), pharmacokinetics (PK), and immunogenicity of efgartigimod in participants with post-COVID-19 postural orthostatic.

Type: Interventional

Start Date: Jun 2023

open study

The goal of this study is to test an investigational new inhaled medication called Optate.

Type: Interventional

Start Date: Jun 2023

open study

The proposed study will be conducted to investigate the mechanism of patients' responses to prone positioning with coronavirus disease 2019 (COVID-19) acute respiratory distress syndrome (ARDS) and non-COVID-19 ARDS utilizing lung ultrasound.

Type: Observational

Start Date: Jan 2021

open study

Primary Objective: • To evaluate overall safety and tolerability of SIR1-365 in patients with severe COVID-19 Secondary Objectives: - To assess the clinical efficacy of SIR1-365 in patients with severe COVID-19 - To assess the effects of SIR1-365 on multiple inflammatory biomarker levels including C-reactive protein (CRP), ferritin, lymphocyte and neutrophil counts, cytokines, and chemokines - To assess the effects of SIR1-365 on biomarkers indicative of target engagement in patients with severe COVID-19 - To assess the effects of SIR1-365 on biomarkers indicative of kidney injury in patients with severe COVID-19 - To assess the effects of SIR1-365 on biomarkers indicative of cardiovascular endothelial cell damage in patients with severe COVID-19 - To characterize plasma pharmacokinetics (PK) of SIR1-365 in patients with severe COVID-19

Type: Interventional

Start Date: Dec 2020

open study

The study investigates how the COVID-19 pandemic has impacted the psychological, financial, physical, and social well-being of adolescent and young adult (AYA) cancer patients and survivors. AYA cancer survivors have inferior long-term survival compared to the general population, and the negative impact of the global COVID-19 pandemic may be even higher in this vulnerable group. The information gained from this study may provide an opportunity to determine the self-reported COVID-19 specific psychological distress in AYA cancer survivors, and may lead to the development of a targeted intervention to improve physical and psychosocial health for AYA cancer patients and survivors.

Type: Observational

Start Date: Jul 2020

open study

The purpose of this study was to confirm and to establish appropriate dosing and to evaluate the safety in pediatric participants ages 2 to <18 years with a history of Vaso-Occlusive Crisis (VOC) with or without Hydroxyurea/Hydroxycarbamide (HU/HC), receiving crizanlizumab for 2 years. The efficacy and safety of crizanlizumab was previously demonstrated in adults with sickle cell disease. The approach was to extrapolate from the pharmacokinetics (PK)/pharmacodynamics (PD) already established in the adult population. The study was designed as a Phase II, multicenter, open-label study.

Type: Interventional

Start Date: Oct 2018

open study