Coronavirus disease 2019 (COVID-19) which is caused by the virus Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has resulted in an ongoing global pandemic. It is unclear whether the relatively low number of reported cases of COVID-19 in people with CF (pwCF) is due to enhanced infection prevention practices or whether pwCF have protective genetic/immune factors. This study aims to prospectively assess the proportion of pwCF, including both adults and children with CF who have evidence of SARS-CoV-2 antibodies over a two-year period. This study will also examine whether pwCF who have antibodies for SARS-CoV-2 have a different clinical presentation and what impact this has on their CF disease. The proposed study will recruit pwCF from paediatric and adult CF centres throughout the United Kingdom. Serological testing to detect antibodies will be performed on blood samples taken at month 0, 6, 12, 18 and 24 with additional time-points if bloodwork is available via normal clinical care. Clinical data on, lung function, CF-related medical history, pulmonary exacerbations, antibiotic use, and microbiology and vaccination receipt, will be collected during routine clinical assessments. Associations will be examined between socio-demographic and clinical variables and serologic testing. The investigators will also examine the effects of SARS-CoV-2 infection on clinical outcomes and analyse end-points to explore any age-related or gender-based differences, as well as subgroup analysis of outcomes in lung-transplant recipients and pwCF receiving cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapies. As pwCF receive COVID-19 vaccination the investigators will perform a comparison of the development and progression of anti-SARS-CoV-2 antibodies in pwCF following natural infection and vaccination SARS-CoV-2 over time. https://clinicaltrials.gov/show/NCT05158829

<h2>Condition:</h2>COVID-19;Organ Transplant<br><br><h2>Intervention:</h2>Drug: Casirivimab and Imdevimab Antibody Cocktail<br><br><h2>Primary outcome:</h2>Monitoring for SARS-CoV-2 infection<br><br><h2>Criteria:</h2><br> Inclusion Criteria: <br><br> 1. Subject provides written informed consent prior to initiation of any study procedures. <br><br> 2. Understands and agrees to comply with planned study procedures. <br><br> 3. Adult =18 years of age at time of enrollment, pediatric ages will be excluded. <br><br> 4. Subject consents to receiving a COVID-19 positive organ (kidney, liver, or heart) <br><br> a. Deceased immunocompetent donor with positive SARS-CoV-2 RT-PCR testing from the <br> respiratory tract (upper or lower): i. Within 21 days since the date of COVID-19 <br> diagnosis OR ii. Within 90 days since the date of COVID-19 diagnosis <br><br> 5. Subject is confirmed COVID-19 negative confirmed by PCR at time of transplant with no <br> signs and symptoms consistent with COVID-19 <br><br> 6. All candidates must be fully vaccinated 2 weeks prior to enrollment a. When applicable <br> candidates can receive a booster vaccine as defined by the FDA/CDC <br><br> Exclusion Criteria: <br><br> 1. Any exposure to investigational medications targeting COVID-19 <br><br> 2. Previous use of casirivimab with imdevimab antibody cocktail (REGEN-COV) <br><br> 3. Previous treatment of COVID-19 with a monoclonal antibody <br><br> 4. Active COVID-19 infection <br><br> 5. Allergy to casirivimab with imdevimab <br><br> 6. Pregnant patients <br><br> 7. Prior transplant <br><br> 8. Hepatitis C virus/NCT positive deceased donors <br><br><br>

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. https://clinicaltrials.gov/show/NCT04969263

Adaptive immune responses are essential for clearing viral infections and retention of virus specific memory populations is required for long-term immunity. However, there is still uncertainty about whether adaptive immune responses to SARS-CoV-2 are protective. Such knowledge is of immediate relevance, as it will provide insights into immunity of SARS-CoV-2 infection and thus help define future immunization strategies. Because of the importance of asymptomatic cases in children, a specific study is needed in this population in order to determine their individual and collective protective capacity. This is even truer for immune compromised children that likely have severe forms of the disease with active and prolonged viral replication in whom it is therefore essential to determine the extent of sero conversion but also the quality and duration of the memory responses. For this purpose, we plan to analyze the anti-SARS-CoV-2 humoral and memory T cell responses, in different groups of immuno-compromized children (i.e with different levels/type of immunosuppression; HIV, renal or stem cell transplantation, anti-TNF or methotrexate treatment) and healthy controls seen in 3 University Hospitals, in order to determine the proportion of children with SARS-CoV-2 specific humoral responses, their protective capacity, the magnitude and the quality of the SARS-Cov-2 memory T cells but also their long term persistence at 1 year. https://clinicaltrials.gov/show/NCT04916847

Goal of this study is to evaluate the seroprevalence of anti-SARS-CoV-2 antibodies in patients after kidney transplantation who are one of the risk groups for the severe course of the infection and map the progression of the virus throughout this specific part of population, which is also important for possible future epidemics. We will evaluate the seroprevalence of anti-SARS-CoV-2 antibodies according to age and gender. We will compare seroprevalence in all measured antibodies types and we will also assess the development of antibodies level in positive patients. https://clinicaltrials.gov/ct2/show/NCT04874740

Coronavirus disease 2019 (COVID-19) which is caused by the virus Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has resulted in an ongoing global pandemic. It is unclear whether the relatively low number of reported cases of COVID-19 in people with CF (pwCF) is due to enhanced infection prevention practices or whether pwCF have protective genetic/immune factors. This study aims to prospectively assess the proportion of pwCF, including both adults and children with CF who have evidence of SARS-CoV-2 antibodies over a two-year period. This study will also examine whether pwCF who have antibodies for SARS-CoV-2 have a different clinical presentation and what impact this has on their CF disease. The proposed study will recruit pwCF from paediatric and adult CF centres throughout the United Kingdom. Serological testing to detect antibodies will be performed on blood samples taken at month 0, 6, 12, 18 and 24 with additional time-points if bloodwork is available via normal clinical care. Clinical data on, lung function, CF-related medical history, pulmonary exacerbations, antibiotic use, and microbiology and vaccination receipt, will be collected during routine clinical assessments. Associations will be examined between socio-demographic and clinical variables and serologic testing. We will also examine the effects of SARS-CoV-2 infection on clinical outcomes and analyse end-points to explore any age-related or gender-based differences, as well as subgroup analysis of outcomes in lung-transplant recipients and pwCF receiving cystic fibrosis transmembrane conductance regulator (CFTR) modulator therapies. As pwCF receive COVID-19 vaccination we will perform a comparison of the development and progression of anti-SARS-CoV-2 antibodies in pwCF following natural infection and vaccination SARS-CoV-2 over time. https://clinicaltrials.gov/show/NCT05012306

The aim of this proposal is to assess at a population level; 1) the proportion of immunosuppressed people who have detectable SARS-CoV-2 antibodies following a primary vaccine course (3 doses), and the sociodemographic, disease, and treatment characteristics that influence antibody status; 2) if the detection of antibodies inversely correlates with subsequent risk of SARS-CoV2 infection and/or severity of disease in immunosuppressed individuals. We aim to target patient groups least likely to mount an immune response to vaccination; a) solid organ transplant recipients; b) patients with a rare autoimmune disease c) patients with haematological malignancies, specifically lymphoid malignancies. We will use comprehensive registries to identify and recruit patients from these groups, and utilise the existing linkages these registries already have to obtain COVID-19 outcome information. We hypothesise that a sizeable proportion of immunosuppressed people will have no detectable SARS-CoV-2 antibodies following a three vaccine doses, and that this cohort is particularly susceptible to SARS-CoV-2 infection and death. https://clinicaltrials.gov/show/NCT05148806

No abstract available