View clinical trials related to Covid19.
Filter by:This is a Phase II study designed to investigate if the Covid 19 vaccines are capable of eliciting production of antibodies against S protein of Sar-S-Cov-2 virus among patients with medical history of cancer previously treated with monoclonal anti CD-20 antibodies. The antibody production is defined based on the detection of antibodies in the serologic Covid-19 rapid test against S protein or with semiquantitative assay when it becomes available.
The COVIDOUT study will prospectively investigate the serological immunity of outpatient cancer patients to evaluate the prevalence of previous severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections and dependency of serological immunity on systemic (chemo)therapy after COVID19 disease as well as after vaccination.
Comparison outcomes of a large cohort of moderate and severe COVID-19 patients received different Antiviral and Anti Inflammatory Drugs.
The main objective of this cohort is to characterize COVID-19 patients hospitalized in infectious disease department. The collection of clinical and biological data from start of hospitalization to long-term follow up will contribute to a better description of the patient care, to the identification of predisposition to complication related to the disease, and to the evaluation of the impact of different therapeutical strategies.
In this study the investigators will explore the effect of the BNT162b2 COVID-19 Vaccine on semen analysis parameters among 75 fertile men. Fertile men will be regarded as such if they previously successfully impregnated their partners without the use of artificial reproductive technology, or men who previously had a normal sperm analysis exam by WHO criteria (2010). Those recruited will supply a single sperm sample 1-2 months following the second dose of the vaccination. In addition, the participants will fill a brief questionnaire with information regarding their medical and reproductive history. The investigators will examine the macroscopic and microscopic properties of the semen samples and compare them to the WHO semen analysis reference range in an attempt to ascertain whether the vaccine influences sperm parameters.
Coronavirus disease 2019 (COVID-19) is a highly infectious pandemic disease caused by SARS-CoV-2 virus. Central Nervous System (CNS) complications associated with COVID-19 might be secondary sequelae due to exuberant systemic innate-mediated hyper-inflammation, which may impair neurovascular endothelial function, disrupt blood brain barrier (BBB), activates CNS innate immune signaling pathways, and induces parainfectious autoimmunity, potentially contributing to the CNS manifestations. Although the predominant clinical manifestation of SARS-CoV-2 is characterized by dyspnea, unremitting fever and hypoxemic respiratory failure, neurologic manifestations do occur in most hospitalized SARS-CoV-2 patients and include non-specific encephalopathy, psychosis, meningitis/encephalitis, myelitis, cerebrovascular events, Guillain-Barre' syndrome, and cranial or peripheral neuropathies, such as anosmia and ageusia. To date, data about primary CNS involvement due to neurotropism and direct neuroinvasion are still lacking.
The aim of this study is to confirm or rule out the residual presence and viability of SARS- CoV-2 in the respiratory tract and lung parenchyma of patients previously infected with SARS-CoV-2. Presence and viability of SARS-CoV-2 in lung tissue will be assessed with reverse transcriptase-polymerase chain reaction (PCR) and viral culture. The histological location of residual SARS-CoV-2 will be determined with fluorescence immunohistochemistry and single molecule fluorescence in situ hybridization, targeting viral proteins and RNA respectively.
The global pandemic caused by the SARS-CoV-2 virus is confronting the German health system with a novel pathogen. This means that a timely evaluation of all available results is required. In the field of intensive care in particular, there are significant gaps in knowledge, particularly with regard to delirium. In this respect, this study also serves directly to investigate the pathways of delirium outcome in COVID-19 patients.
The aim of this study is prospectively analyzing the histopathological, ultrastructural and microbiological findings from autopsies performed on patients with COVID-19.
Pathogen-free, concentrated, pooled convalescent plasma has higher SARS-CoV2 antibody titers and neutralizing antibody activities, without requiring blood group compatibility that allows patient accessibility in a shorter time and has safe plasma characteristic.