View clinical trials related to Covid19.
Filter by:To assess the co-relation of COVID-19 in nasopharyngeal swabs and tears or saliva, and to determine duration of COVID-19 activity in ocular fluid and saliva by serial tests over 3 months.
Background: COVID-19 is a new disease caused by SARS-CoV-2 that was identified in 2019. Some people who get sick with COVID-19 become ill requiring hospitalization. There are some medicines that may help with recovery. Researchers want to see if a drug called fostamatinib may help people who are hospitalized with COVID-19. Objective: To learn if fostamatinib is safe in patients who are hospitalized with COVID-19 and gain earlier insight into whether it improves outcomes. Eligibility: Adults age 18 and older who are hospitalized with COVID-19. Design: Participants will be screened with a physical exam, including vital signs and weight. They will have a blood test and chest x-ray. They will have a COVID-19 test as a swab of either the back of the throat or the back of the nose. They will take a pregnancy test if needed. Participants will be randomly assigned, to take either fostamatinib pills or a placebo twice daily for up to 14 days in addition to standard of care for COVID-19. If they can swallow, they will take the pills by mouth with water. If they cannot swallow or are on mechanical ventilation, the pills will be crushed, mixed with water, and given through a tube placed through the nostril, or placed in the mouth, down the esophagus, and into the stomach. Blood samples will be taken daily. Participants will return to the Clinical Center for safety follow-up visits. At these visits, they will have a physical exam and blood tests. If they cannot visit the Clinical Center, they will be contacted by phone or have a telehealth visit. Participation will last for about two months
REMPAR EHPAD study addresses environmental and managerial factors associated with an outbreak of COVID 19 in French Long Term Care Institutions in the spring of 2020. The survey used a mixed methodology, combining qualitative and quantitative approaches, with a questionnaire send to all identified institutions (n=501) and qualitative interviews with facility directors (n=21).
The investigators hypothesize that detection of SARS-CoV2 on saliva samples will increase the performance of the screening program compared to the reference strategy (RT-PCR on a nasopharyngeal swab).
Efficacy of Aerosol Combination Therapy of 13 Cis Retinoic Acid and Captopril for Treating Covid-19 Patients Via Indirect Inhibition of Transmembrane Protease, Serine 2 (TMPRSS2) Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) has infected over 20,000,000 people causing over 700,000 deaths. It has no currently approved treatments.Airborne SARS-CoV-2 infections in humans initiate from the virus entering nasal and airway epithelial cells through binding to angiotensin-converting enzyme 2 (ACE2). Transmembrane protease, serine 2 (TMPRSS2), a cellular protease that activates the SARS-CoV-2 spike protein, colocalizes with ACE2 and can prime SARS-CoV-2 fusion directly at the plasma membrane. Transmembrane protease, serine 2 (TMPRSS2) is an androgen receptor signaling target gene and an androgen-regulated cell-surface serine protease expressed predominantly in prostate and lung epithelial cell. TMPRSS2 is normally expressed several folds higher in the prostate relative to any other human tissue, though the normal physiological function(s) remains unknown. A study found that dihydrotestosterone (DHT) s a potent activator of TMPRSS2.On the other hand, Feily et al noted that low-dose isotretinoin (0.5 mg/kg/day for 15-20 weeks) in PCO patients with moderate to severe nodulocystic acne resulted in significant decreases in levels of serum total testosterone, prolactin, and dihydrotestosterone A study demonstrated that 13- cis -Retinoic acid competitively and reversibly inhibits dihydrotestosterone. Therefore, we suggest that 13- cis -Retinoic acid will downregulate TMPRSS2 expression thorough temporary preventing the effect of dihydrotestosterone (DHT) on the activation of TMPRSS2 gene expression. ACE inhibitors and ARBs are commonly taken by heart patients to reduce blood pressure and to treat heart failure.Earlier studies had cautioned that this class of drugs could possibly increase the risk for the novel coronavirus, SARS-CoV-2, infection and elevate COVID-19 severity. There is conflicting observational evidence about the potential clinical impact of ACE inhibitors and ARBs on patients with COVID-19. Select preclinical investigations have raised concerns about their safety in patients with COVID-19. On the other hand, Preliminary data hypothesise that angiotensin-converting enzyme (ACE) inhibitors and renin-angiotensin- aldosterone system (RAAS) inhibitors could benefit patients with COVID-19 by decreasing acute lung damage and preventing angiotensin-II-mediated pulmonary inflammation. Here in our review, we use established and emerging evidence based on the findings of previous studies and researches to propose that ACE inhibitors may benefit patients with COVID-19 via attenuating and abolishing the effect of androgenic hormones on inducing the expression of Transmembrane protease, serine 2 (TMPRSS2), even though, at the same time, ACE inhibitors cause an increase in the human cell surface receptor protein ACE2 which the novel coronavirus uses to enter and infect cells. A study on hypertensive rats demonstrated that using ACE inhibitors(captopril) abolished and attenuated the effect of dihydrotestosterone (DHT). In this study RAS inhibition exhibited beneficial effects on androgen-induced obesity and abolished the androgen-mediated increase in blood pressure (BP) observed in this model of PCOS. (83 ± 1 vs 115 ± 3 mmHg, p<0.0001). A another study found that the angiotensin converting enzyme inhibitor captopril abolished testosterone effect and attenuates testosterone-induced benign prostatic hyperplasia in rats; a mechanistic approach. Captopril is a potent inhibitor of the angiotensin converting enzyme. These effects of testosterone were almost prevented by captopril (100 mg/kg). In conclusion, generally treatment with ACE inhibitors is associated with reduced androgen levels. Therefore,we think that Transmembrane protease, serine 2 (TMPRSS2) is an indirect target of ACE inhibitors and 13 cis retinoic acid As aresult, we hypothesize that any drug which downregulates TMPRSS2 expression through targeting AR, AR co-regulatory factors, or AR downstream transcription factors might be potentially effective against COVID-19 and is worth investigating under a clinical trial.. Keywords: COVID -19, Transmembrane protease, serine 2 (TMPRSS2), ACE inhibitors, ACE2.
Critically ill patients requiring intensive care suffer to a large extent from cognitive deficits involving higher brain functions that primarily affect memory, learning and the ability to concentrate. While the background to this effect is not fully understood, there are growing evidence to support mechanisms related to neuro inflammation and changes in blood flow with concomitant ischemic brain damage. Patients with covid-19 often suffer from severe inflammatory activity with an increased risk of coagulation abnormalities and brain damage. Covid-19 patients requiring intensive care develope more severe impairment of neurological and cognitive function than critically ill intensive care patients who have not covid-19. This project therefore aims to map the link between inflammation, immunology and coagulation systems as well as biochemical and structural changes in the brain with cognitive effects in patients in intensive care for covid-19.
The purpose of this study is to investigate if Quercetin Phytosome is beneficial for the treatment of COVID-19.
The identification of patients with genitourinary tumors who suffer from the infection by the Serious Acute Respiratory Syndrome Corona-Virus 2 (SARS-CoV-2) virus can represent multiple benefits both for themselves and for health professionals and the health system itself. We would be able to know more precisely the clinical evolution of these type of patient, to know their prognosis and being capable to select the most appropriate treatment modality for future pandemics. SOGUG-COVID is an observational prospective-retrospective trial purely epidemiological, that aims to describe the population with genitourinary tumors (urothelial cancer, prostate cancer, testicular cancer and kidney cancer) infected by COrona VIrus Disease 19 (COVID-19) treated in Spanish hospitals, learn about the clinical presentation, therapeutic evolution and prognosis of said intercurrent infectious process, as well as its possible relationship with different clinical and therapeutic factors.
Evaluating the efficacy of Tocilizumab in hospitalized patients in the inflammatory phase of COVID-19. Randomization 2:1 (TCZ:standard of care).
Efficacy and safety of Drug combination therapy of Isotretinoin and some Anti fungal Drugs as A potential Aerosol therapy for COVID-19 : An innovative therapeutic approach The pandemic of COVID-19 which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) has infected over 2,000,000 people causing over 150,000 deaths.It hasno currently approved treatments.. Airborne SARS-CoV-2 infections in humans initiate from the virus entering nasal and airway epithelial cells through binding to angiotensin-converting enzyme 2 (ACE2). TMPRSS2, a cellular protease that activates the SARS-CoV-2 spike protein, colocalizes with ACE2 and can prime SARS-CoV-2 fusion directly at the plasma membrane. In the lungs, SARS-CoV-2 infects type I and type II alveolar epithelial cells, as well as alveolar macrophages that are among the first producers of pro-inflammatory cytokines. As key components of the immediate antiviral response, type I interferons (here after referred to as IFNs) are crucial for restricting viral replication and spread, through autocrine and paracrine type I IFN receptor (IFNAR) signalling. However, minimal amounts of IFNs have been detected in the peripheral blood or lungs of patients with severe COVID-19 In a mouse model of SARS-CoV infection, local IFN responses in the lungs were delayed relative to peak viral replication, which impeded virus clearance and was associated with the development of CRS . SARS-CoV-2 ORF3b is a potent interferon inhebitor and antagonist Here, we review the molecular mechanisms by which Retinoic acid (isotretinoin) and antifungal drugs can cooperate to induce interferon in covid-19 infected patients A study reported that 13 Cis retinoic acid induced significant upregulation of toll-like receptor 3 resulting in an immune response to dsRNA intermediate which can be partially generated during CoV-2 replication . TLR3 sensitized by dsRNA and cascades of signaling pathways (Interferon-regulatory factor 1 (IRFs) and Nuclear factor-κB (NFκB) activation, respectively) are activated to produce type I interferons. The production of type I IFNs is important to enhance the release of antiviral proteins for the protection of uninfected cells. RA can be generated in multiple forms as all-trans, 9-cis,and 13-cis retinoic acid. A study reported that Retinoic acid induces directly the expression of two transcription factors, Stat1 and IRF-1 which play central roles in the IFN signal transduction. In addition, RA induces IFN-a synthesis, IFNs can serve as the first line of immune defense against viral infections. IFNs are very powerful cytokines, which play a key role in combatting pathogenic infections by controlling inflammation and immune response by directly inducing antipathogen molecular countermeasures. There are three classes of IFNs: type I, type II, and type III. Antifungal drug. Fluconazol or itraconazol can inhibit cytochrome P450 enzymes, especially cype 26 which control retinoic acid concentration into human cells enhance both isotretinoin effect and Concentrations in Target Tissues This in turn lead to hyper interferon induction and synthesis in case of COVID-19. Also a study demonstrated that isotretinoin can be given as aerosolized via inhalation rout without any damage in lung cells. Repeated high doses of 13 cis retinoic by inhalation resulted in moderate loss of body weight, but microscopic investigation of ten tissues including lung and oesophagus did not detect any significant aerosol-induced damage therefore inhaled isotretinoin might provide sufficient drug to the target cells in lung for efficacy while avoiding systemic toxicity. In conclusion,isotretinoin therapy has furthermore a proven anti-inflammatory, anti-platelet and fibrinolytic activities which may protect patients infected with covid-19 from widespread blood clots. From this point, we suggest that isotretinoin will be the immunity passport" in the context of COVID-19.