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Browse 1,603 clinical trials for covid-19. Find studies that match your criteria and connect with research centers.
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NCT04930978
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the Coronavirus disease (COVID-19). Tuberculosis (TB) is the foremost cause of infectious deaths globally. In 2025, an additional 1.4 million TB deaths could occur as direct consequence of the COVID-19 pandemic. It is postulated that individuals with latent or active TB are more susceptible to SARS-CoV-2 disease and that COVID-19 disease rate is high in patients with active TB, although the evidence is still scarce. TB and SARS-CoV-2 are both infectious diseases which primarily attack the alveolar region of the lungs and share common symptoms. SARS-CoV-2 disease can induce innate and adaptive immunity, but uncontrolled inflammatory innate immunity and impaired adaptive immune responses may be associated with severe tissue damage, both locally and systemically. People with coinfection (COVID-19 and TB disease) might potentially have impaired protective immune responses and treatment outcomes, specifically as far as anti-tuberculosis treatment is concerned. However, very little is known about the immunological underpinnings in this interface between TB and COVID-19 on the effect of SARS-CoV-2 disease on disease severity, response to treatment and treatment outcomes in pulmonary tuberculosis. Investigators hypothesize that altered immunity due to prior or present asymptomatic disease with SARS-CoV-2 virus can lead to altered immune responses and systems biology, increased severity and altered treatment outcomes in TB disease. The main objective of the study would be to evaluate the baseline differences in immune cells populations immune cell responses at baseline and at the time of treatment (2nd month) and end of treatment. Further, Investigators would be evaluating the changes in proteomic profiles in a subset of these individuals. In addition, immunological assays examining differences in T cell populations, measuring levels of various cytokines and by immunophenotyping as well as other immune parameters related to innate and adaptive responses will be performed to enhance the understanding of the immunological cross-talk between active TB patients with or without SARS-CoV-2. The secondary objective would be to study the clinical features, disease severity, mycobacterial burden and treatment outcomes in a cohort of SARS-CoV-2 infected (asymptomatic PCR or Antibody+) and non-infected patients with active pulmonary TB.
NCT05212870
There are a limited number of studies examining the difficulty of reaching treatment related to the pandemic process and the general effects of the process in patients with chronic low back and neck pain. However, no study has been found that compares the effects of individuals actively carrying and not carrying the Covid-19 virus. For this reason, the aim of the study is to examine the effects of the pandemic process on the cognitive level, pain catastrophization, physical activity level and quality of life in individuals with chronic low back and neck pain.
NCT05719012
To explore the efficacy and safety of Umbilical cord mesenchymal stem cells in the treatment of long COVID-19
NCT04371510
SARS-CoV-2 induces over-production of inflammatory cytokines, and especially interleukin-6 (IL-6). The apparently strong association between blood levels of inflammaory cytokines and SARS-CoV-2 disease severity has led clinicians to evaluate the administration of steroids or anti-IL-6 antagonists in severely ill patients. As of this day, biomarkers capable of predicting clinical disease progression in Covid-19 patients with mild-to-moderate symptoms have not yet been formally identified. Identifying such markers and evaluating their predictive value may be exploited to guide patient care management, and as such forms the core objective of this proposal. Because of strong inter-individual variations in the ability of innate immune cells to produce cytokines, the hypothesis the investigators formulate and intend to test is that innate IL-6 responsiveness varies between recently infected Covid-19 patients and could predict disease outcome. To test this hypothesis, the investigators propose to follow recently infected chronic haemodialysis patients with moderate Covid-19 symptoms. These patients stand a higher risk to progress to severe disease. The investigators plan to collect a blood sample in these patients using a system whereby ex vivo cytokine production is initiated in the very same blood collection tube without prior separation and centrifugation, thus reducing labour and operator bias. After incubation with or without known innate immune stimuli, the cell-free phase from each collection-culture tube will be assayed for IL-6 content. Associations between IL-6 content and disease outcome (encephalopathy, transfer to acute care or death) will be determined in 115 Covid-19 chronic haemodialysis patients with moderate symptoms followed in 9 centers.
NCT04888949
Safety and efficacy of ADR-001 are evaluated in Patients with Severe Pneumonia caused by SARS-CoV-2 infection.
NCT06134674
The goal of this observational study is to determine the relationship between the nutritional profile of critically ill patients diagnosed with COVID-19 and disease severity, prognosis, and survival, to assess the ability to meet nutritional goals, EN complications, and reasons for discontinuation and postponement of feeding. The main questions aim to answer are the relationship between the duration of EN initiation and Prognostic Nutritional Index (PNI) score, neutrophil-lymphocyte ratio (NLR), oxygenation status, MV, ICU, and length of hospital stay, overall mortality, and whether nutritional goals were met, EN complications, and reasons for discontinuation and postponement.
NCT05409274
Develop coronavirus disease 2019 (COVID-19) surveillance in pregnancy in The Gambia, Kenya, Malawi, Mozambique and Uganda Estimate the seroepidemiology of COVID-19 infection among pregnant women in these countries Define the immune response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in pregnant women and their babies and determine the presence of antibodies in cord blood Work with communities to develop understanding of infection prevention and control techniques to reduce the spread of COVID-19 amongst the pregnant population
NCT04717024
The NanoCOAT study is a multi-center, prospective, non-randomized, feasibility, observational, non-significant risk study. The NanoCOAT study will enroll a minimum of 10 and a maximum of 100 subjects in a potential for a multi-site in order to collect data and analyze physiological and biometric trends due to Covid-19.
NCT05171803
The purpose of this protocol is to investigate the ability of pre-existing immunity by natural infection or vaccination to prevent infections by emerging SARS-CoV-2 variants.
NCT06118125
Objective: the pre-hospital management of cancers is little known in General Medicine. The first lockdown related to the COVID-19 pandemic led to the closure of health facilities. Investigators were interested in the diagnosis and care pathway of digestive cancers in post-confinement in General Medicine in Nouvelle-Aquitaine.
NCT04352400
RACONA is a prospective trial that will test the hypothesis that nafamostat can lower lung function deterioration and need for intensive care admission in COVID-19 patients. Design: Adult hospitalized COVID-19 patients will be randomized in a prospective double-blind randomized placebo-controlled study to test the clinical efficacy of nafamostat mesylate (administered intravenously) on top of best standard of care. Primary outcome measures: the time-to-clinical improvement, defined as the time from randomization to an improvement of two points (from the status at randomization) on a seven category ordinal scale or live discharge from the hospital, whichever comes first.
NCT05556733
In recovered COVID-19 patients, emerging global data have reported the presence of long COVID, that is, at least one symptom that an alternative diagnosis cannot explain has been persistent for four or more weeks after the initial infection. We demonstrated previously that almost 80% of recovered COVID-19 patients in Hong Kong suffer from Long COVID for more than 6 months, affecting multiple body systems. In a recent study, the five most common Long COVID symptoms were fatigue, memory problem, difficulty sleeping, anxiety and hair loss. One promising hypothesis is the involvement of the gut microbiota, a collection of the trillions of gut microorganisms that play important immunomodulatory roles against infections. Faecal microbiota transplantation (FMT), which is the infusion of processed faeces from healthy donors to the gut of affected subjects, has shown impressive therapeutic effects for recurrent Clostridioides difficile infection and other emerging indications. Gut microorganisms together with the metabolites in the donated faeces could potentially modulate the gut microbiota of the recipient and treat the dysbiosis associated with pathological health conditions. To date, no study has yet to assess the therapeutic effects of FMT in post-COVID-19 neuropsychiatric conditions.
NCT04706533
To better understand the role of inflammation in COVID-19, we established the Michigan Medicine COVID-19 Cohort (M2C2). M2C2 is a funded and ongoing cohort which has currently enrolled over 1500 adult patients (≥18 years) with severe COVID-19 admitted at the University of Michigan. The purpose of M2C2 is to define the in-hospital course of these patients and understand the role of inflammation as a determinant of organ injury and outcomes in COVID-19.
NCT04495816
To capture the natural history of COVID-19 associated olfactory dysfunction as measured by two patient reported outcome measures (SNOT-22, QOD-NS) and a 6-week BSIT with a comparison to an intervention arm receiving daily omega-3 supplements.
NCT05436795
As the world opens up to rapidly increasing vaccination coverage and newer variants, there is an even greater need for timely access to at-home COVID-19 testing, or self-testing based out of kiosks, offices, or private spaces. Data on digital strategies that complement self-testing are sparse. Using a superiority randomized controlled trial design (open-label, single-blinded), the investigators will aim to evaluate the impact of a digital self-testing strategy offered out of kiosks/private spaces on the turnaround time to test results, the proportion of participants initiated on action plans, and new infection detected with the strategy. The investigators will compare these outcomes to a conventional lab-based strategy. Significance: A digital, portable, self-testing strategy will facilitate rapid self-knowledge of COVID-19 status and rapid classification into clinical/quarantine/prevention plans. The study will document the impact of a digitally connected self-testing strategy for COVID-19 infection. Upon completion of the strategy, the digital program will be available for global dissemination.
NCT05800158
This prospective clinical performance study is a non-interventional, multi-center study to evaluate the assay performance of the COVID-19 test using upper respiratory specimens. Prospectively collected nasopharyngeal and anterior nasal swabs will be collected from each participant recruited in the study.
NCT04913142
The objective of the present study is to describe the negative impact on oral and gut microbiota of a severe acute respiratory syndrome SARS-CoV-2 infection in patients hospitalized in intensive care units (ICU). The study would like to compare their microbiota to the microbiota of ICU patients, non-infected by the SARS-CoV-2.
NCT06086405
Retrospective data collection to evaluate the gas transfer capacity of the Braile Biomédica® OxyPrime® ECMO BRCoating® Membrane Oxygenator in COVID-19 patients during the pandemic.
NCT05788185
Phase 1b, randomized, open-label, study to evaluate the safety, tolerability, and immunogenicity of RVM-V001 only, RVM-V002 only, or RVM V001 + RVM V002 (Co administered as Separate Injections) in healthy adults. The study will be conducted at one site in Singapore.
NCT04610801
The purpose of this study is to assess the efficacy of Xylitol plus Grapefruit Seed Extract (Xlear) nasal spray as an adjunct treatment of COVID-19.
