There are 5 clinical trials

Clinical Trials

1 Using Biomarkers to Predict TB Treatment Duration

Background: Tuberculosis (TB) is a bacterial lung infection. Typical treatment using anti-TB drugs lasts about 6 months. Some people with less severe TB might not need to take the drugs that long. Researchers think a PET/CT lung scan along with estimating how much TB is in the lungs might show who will be cured after only 4 months of treatment. Objective: To demonstrate that 4 months of treatment is not inferior to 6 months of treatment for people with less severe TB. Eligibility: People 18-75 years old who have TB treatable with standard TB drugs Design: Participants will be screened with: Medical history Physical exam Blood and urine tests HIV test Sputum sample: Participants will be asked to cough sputum into a cup. Chest x-ray Participants will start TB drugs. They will have visits at weeks 1, 2, 4, 8, 12, and about 6 more times during the 18-month study. Visits include: Sputum samples Physical exam Blood tests PET/CT scans at 2-3 visits: Participants fast for about 6 hours before the scan. Participants get FDG, a type of sugar that gives off a small amount of radiation, through an arm vein. They lie on a table in a machine that takes pictures of the body. Chest x-rays at 1-2 visits Participants who we believe are likely to be cured at 4 months will be randomly assigned to get either 6 months of treatment or 4 months of treatment. Participants may be asked to join a substudy using their sputum samples or additional blood tests.

NCT02821832 Pulmonary Tuberculosis Procedure: Saliva collection Procedure: Urine collection Procedure: Sputum collection Procedure: Blood Collection Radiation: PET/CT Scan Drug: Isoniazid, Rifampicin, Pyrazinamide and Ethambutol

MeSH:Tuberculosis Tuberculosis, Pulmonary

2 Development of a Molecular Diagnostic Strategy for SARS-CoV2 Based on Saliva in the Context of the COVID-19 Pandemic

The objective of the study is to develop and validate a molecular diagnostic strategy (RT-ddPCR multiplex) of COVID-19 based on a saliva sample and alternative to the RT-qPCR method, in order to : 1. to compensate for the risk of a shortage of diagnostic kits, reagents and materials necessary for molecular diagnosis; 2. to increase the molecular diagnostic capacity of COVID-19 at the Rouen University Hospital; 3. and to have a method compatible with screening extended to populations at risk.

NCT04367545 COVID RT-ddPCR Multiplex Diagnostic Test: Saliva collection

3 Human Ab Response & immunoMONItoring of COVID-19 Patients

Prospective, mono centric study on COVID-19 patients with or without acute respiratory distress syndrome (ARDS) to analyse the dynamics of the immune response and to search for biomarkers of evolution

NCT04373200 SARS-CoV-2 Coronavirus Acute Respiratory Distress Syndrome Biological: Blood samples collection Other: Saliva collection

MeSH:Coronavirus Infections Respiratory Distress Syndrome, Newborn Respiratory Distress Syndrome, Adult Acute Lung Injury

4 Study of Kinetics and Efficacy of the Immune Response Against COVID-19 Among Hospital Staff

COVID-19 is a pathology linked to the SARS-CoV-2 virus, a new virus of the coronaviridae family that emerged in China in December 2019 before rapidly becoming a pandemic according to the WHO on March 11, 2020. The epidemic affected France from February 2020. On February 24, a patient hospitalized at Percy hospital was the cause of a major nosocomial epidemic, potentially responsible for more than 250 symptomatic people in the hospital as of April 6. The outbreak was identified by Percy hospital management on March 16, and barrier measures were immediately put in place. From March 20, a mixed investigation unit set up a chain of nasopharyngeal swabs for Percy hospital staff. A COVID-19 case reporting unit was set up at Percy hospital in response to the identification of the outbreak within the hospital. This unit carried out rapid identification and regular follow-up until the return to work of the staff. Thus all symptomatic patients are identified and the COVID-19 case census cell will follow all Percy hospital staff, including volunteers recruited to deal with the epidemic, throughout the duration of the epidemic. This population, captive by nature, will be one of the few described in the world during this epidemic. Current data on short-, medium- and long-term immunity induced by COVID-19 infection are fragmentary, as is the existence of a large asymptomatic population, making it difficult to cut the chains of transmission in the absence of an effective diagnostic tool. Another important issue is the quality of immunity induced by the infection, as it conditions the future of the pandemic, which could become endemic and recurrent if immunity were not sterilizing. As yet unpublished data in primates show that in the primate model re-infection is not possible in the short term, while patients cured from the Wuhan epidemic seem to be detected again positive for virus shedding. The objective of this study is to characterize the immunity (systemic and local) induced by SARS-Cov-2 infection among Percy hospital staff who are at high risk of contamination even in a period of confinement.

NCT04408001 Sars-CoV2 Other: Clinical interview Biological: Blood collection Biological: Saliva collection

5 SARS-CoV2 (COVID-19) Diagnosis in Human Saliva by MALDI-TOF MS Profiling

Since March 2020, SARS-CoV2 virus (nCoV19; COVID-19) is considered pandemic. Its high rate of spread and infection in the human population and the lack of effective and validated treatment have led the authorities of several countries to confine their populations to slow the spread of COVID-19. As part of the management of this health crisis, the screening of individuals is essential in order to isolate "infected cases". These screening tests are currently performed on nasopharyngeal swabs using RT-PCR for the detection of viral RNA. Although sensitive and specific, these tests remain relatively long (2-5 hours), expensive and the strong international demand for nucleic extraction kits and enzymes are factors limiting the implementation of widespread screening (problem of supply of swabs, molecular biology consumables). In order to prevent the risks of a shortage of screening means, we propose to develop an innovative alternative strategy, PCR-free, based on the detection of specific protein signatures in human saliva by MALDI-TOF MS profiling. MALDI-TOF MS profiling is a method used in routine diagnostics by microbiology laboratories for the identification of microorganisms. MALDI-TOF MS profiling has been successfully used to classify individuals according to their infectious status (oral pathologies) based on the analysis of their saliva, but also as a tool for the identification of respiratory viruses from cell culture supernatants. In addition, we have expertise and skills in the field of MALDI-TOF MS profiling and have implemented new strategies to improve the quality of profiles and their analysis, particularly in the context of entomological and vector identification projects. Finally, recent Chinese studies have reported that COVID-19 was detectable in saliva by RT-PCR. The main objective of this study is to develop a test based on the MALDI-TOF profiling method to detect individuals infected with SARS-CoV2 from saliva sample.

NCT04460638 SARS-CoV 2 Biological: Saliva collection Other: Clinical assessment

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