View clinical trials related to Covid19.
Filter by:A Multi-centre, 18-months, Single-group Study of Application of Convalescent Plasma in the Treatment of SARS CoV-2 Disease (COVID-19) With Metabolomic and Laboratory Evaluation of Plasma Therapy Effectiveness.
Objective: To assess the prognostic value of high-sensitive cardiac troponin T (hs-cTnT) and N-terminal pro brain natriuretic peptide (NT-proBNP) at ICU admission in patients with coronavirus disease 2019 (COVID-19). Design: Multicenter retrospective observational cohort study Setting: Three ICUs at three hospitals in Occitanie, France. Patients: Adults (≥ 18 years old) with laboratory-confirmed COVID-19 and at least one hs-cTnT measurement at ICU admission, from March 9, 2020, to May 9, 2020.
The COVID-19 pandemic challenges available hospital capacity. Strategies to protect health care workers (HCW) are desperately needed. Bacille Calmette- Guérin (BCG) has protective non-specific effects against other infections; a plausible immunological mechanism has been identified in terms of "trained innate immunity". The primary objective of the study is to evaluate whether BCG can reduce unplanned absenteeism due to illness among HCW during the COVID-19 pandemic. Secondary objectives are to reduce the number of HCW that are infected with COVID-19, reduce hospital admissions for HCW and to improve the capacity for clinical research. Design: Single-blind, parallel-group placebo-controlled multi-centre block randomized trial including a total of 1050 HCW. The study sites will be the Manhiça hospital in Mozambique, Central Hospital Dr. Agostinho Neto and Central Hospital Dr. Baptista de Sousa in Cape Verde and Hospital Nacional Simão Mendes and other hospitals in the capital Bissau in Guinea-Bissau. Population: HCW (nurses/physicians/others) ≥18 years. Intervention: Block randomization 1:1 to intradermal standard dose (0.1 ml) of BCG vaccine or placebo (saline). Endpoints: Primary: Days of unplanned absenteeism due to illness. Secondary: Days of absenteeism because of documented COVID-19; cumulative incidence of infectious disease hospitalizations. Follow-up: mobile phone interviews every second week, regarding symptoms, absenteeism and causes, COVID-19 testing (if done) and their results. Perspectives: If BCG can reduce HCW absenteeism it has global implications. The intervention can quickly be scaled up all over the world.
France was gradually affected by SARS-Cov-2 from January 2020; it evolved in an epidemic mode in March and April 20. During the 1st phase of the epidemic, more than 250 000 cases of Covid-19 have been confirmed in France resulting in the death of more than 30,000 patients. Mortality from infection varies greatly depending on the age of the affected individuals and their comorbidities including a history of cancer. We conducted a retrospective study in 89 patients with lymphoma and Covid-19 during the first phase of the epidemic and showed a 30-day mortality of 29%. Mortality was higher in patients over 70 years of age and in a situation of relapsed or refractory disease. Lymphoma-induced hypogammaglobulinemia and / or lymphopenia as well as chemotherapy and immunotherapy treatments are known to promote the development of infections in affected individuals. Among these, anti-CD20 monoclonal antibodies, widely prescribed to treat B-cell non-Hodgkin lymphomas (B-NHL) induce a rapid depletion of over 95% of mature CD20 + B cells. This can alter the production of antibodies, and the constitution of memory responses to a new pathogen. Also, B lymphocytes have a key immunomodulatory role in the control of viral infections. The specific immune response to SARS-CoV -2 and its evolution remain under characterization. Regardless of their neutralizing capacity, specific IgM appear 5 days after the onset of symptoms while IgG appear after 14 days. The immune response to SARS-CoV-2 also includes a T lymphocyte component, with an increase, among circulating lymphocytes, of activated CD8 and CD4 T lymphocytes. Data are still lacking on the specific response of CD4 and CD8 T lymphocytes against SARS-CoV-2, but these responses probably play a crucial role in virus clearance as well as in the immunopathology associated with SARS-CoV-2. Therapeutic depletion of B lymphocytes before acute infection may alter the generation of primary and functional responses. Therefore, a growing concern is whether patients with B-NHL who have acquired an infection with SARS-CoV-2 are protected against re-infection in the same way when they have or have not received anti-CD20 monoclonal antibodies. Analyzing the clinical and immunological evolution of Covid-19 in patients with B-NHL is useful to adapt the treatment recommendations in their regard according to the risk of severe form of Covid-19 . This is a multicenter, prospective study to determine whether treatment with monoclonal anti-CD20 antibodies in patients with B-cell NHL modifies the clinical and immunological course of Covid-19.
The BBV152 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 efficacy, safety, and immunogenicity of BBV152 to prevent COVID-19 for up to 1 year after the second dose of BBV152.
The purpose of this study is to assess the effect of vitamin D and/or zinc supplementation on improving COVID-19 treatment outcomes. The effects of vitamin D, zinc, and both vitamin D and zinc together will be investigated among COVID-19 patients in India.
The aim of this observational study is to evaluate the physiological and clinical effects of prone position in awake patients with respiratory failure due to COVID-19.
Multi-centre prospective study evaluating computed tomography angiography studies performed for stroke patients as a diagnostic and prognostic imaging biomarker.
This is a phase Ⅱ, single-center, randomized, double-blind, placebo-controlled study, to evaluate the immunogenicity and safety of the recombinant COVID-19 vaccine (Sf9 cells) in the subjects from healthy adults and elderly adults aged 18 years and above (aged 18-60 and 60-85 years) with different immunization procedures (0, 21 days and 0, 14, 28 days) and doses (20μg/40μg).
Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Multi-Centre Phase II/III Adaptive Clinical Trial to Assess the Safety and Immunogenicity of Gam-COVID-Vac Combined Vector Vaccine for SARS-Сov-2 Infection in Indian Healthy Subjects.