COVID -19

This phase 1 clinical trial will evaluate the safety, reactogenicity, and immunogenicity of RVX-sCPD9, given Intranasally (IN), as a booster dose to previously vaccinated healthy adults. The study is designed as a non-randomized, open-label, dose-escalation clinical trial evaluating four dose levels of RVX-sCPD9 administered IN (10\^2, 10\^3, 10\^4, 5 x 10\^4 FFU). A sample size of 80 participants (20 participants in each cohort). The primary objective is to evaluate the safety and reactogenicity of a single IN administration of 4 ascending dosages of RVX-sCPD9 in previously vaccinated healthy adults.

This first-in-human study is designed to evaluate the safety, tolerability, pharmacokinetics, anti-drug antibodies, and neutralizing activity of MDX2301 administered by intravenous (IV), intramuscular (IM), or subcutaneous (SC) routes in healthy adults and adults at higher risk for severe COVID-19. Participants will receive single IV, IM, and SC doses of MDX2301 or placebo and a repeat IM or SC dose approximately 3 months apart of MDX2301 or placebo.

In 2020, the world is hit by a global health crisis due to a pandemic following the appearance of Sars-cov-2 or "covid-19". This pandemic was accompanied by a constant fear of contamination and death, relayed by the media. In France, the government proposed in response to the arrival of this virus on French territory. This policy was implemented in different ways over 3 distinct periods: strict containment at the start of the epidemic, then a "lighter" one, and finally a period of social restrictions without between these periods. This policy had a direct and rapid impact on the population's daily routines. Children and adolescents, are more susceptible to psychological trauma, as stress has a direct and psychic development. Studies have shown deleterious impact of the French health situation on the paediatric population. They point to an increase of psychological disorders such as depression and anxiety in the under -20s population, and an increase in suicidal gestures over the 2020-2021 period, with rates remaining higher than in previous years. Suicide is the 2nd leading cause of death in the population aged 15-24. Studies continue to focus on the incidence of suicidal gestures of suicidal gestures and psychological disorders, and few of them examine the factors linked to the increase in these incidences, the traumatic impact or the story of the trajectory. Similarly, the few studies focus only on the population aged 12 and over, and in some cases, do not distinguish between age groups (15-24 or under 20). Investigators believe that the various periods of social restrictions and eco-anxiety caused by the pandemic may have influenced suicidal behaviour in this population. The main objective of this study is to investigate the clinical and socio-economic characteristics of the pediatric population who experienced suicidal behaviors in the Auvergne Rhone Alpes region during the covid 19 pandemic.

The CHARM network will be established through three primary institutions-Beth Israel Deaconess Medical Center (BIDMC), the University of California San Diego (UCSD), and the University of Washington (UW)-along with their subcontracting institutions. At UCSD and partner sites, the CHARM network will be implemented via the PREVENT project. All PREVENT participants will be consented in to Component A0 (Community Testing) and a subset of A0 participants will be invited to participate and will be consented into the other components: Component A (Ongoing Testing); Component A Sub-study (Immunology); Component B (Household Transmission). Component A0 participants (Community testing) will be members of the community who are interested in accessing testing for respiratory infections and will be asked to provide limited information that will then be used for screening for study Components A and/or B. Participants in Component A (Ongoing Testing ) will undergo weekly symptom screening. If they report symptoms, they will be asked to provide a nasal swab and complete illness questionnaires on the day they report symptoms (Day 0) and again on Days 7 and 14. Participants in Component A Sub-study (Immunology) will provide blood and saliva/nasal fluid samples twice a year, as well as before and after infection and/or immunization against priority pathogens. Participants in Component B (Household Transmission) will complete daily symptom questionnaires and nasal swabs for 14 days following enrollment, regardless of symptoms. Those who are symptomatic at enrollment will also complete retrospective daily diaries from symptom onset to the enrollment date. Additionally, they provide blood and/or saliva/nasal fluid samples at enrollment and again 28 days later. For all Components, UCSD will provide PCR test results for SARS-CoV-2, Influenza A/B, and RSV for nasal swab samples.

The Metrix Respiratory Panel Test will be evaluated for use in Non-Laboratory settings in a home testing environment utilizing the clinical study design described herein. The study will take place in simulated home environments which will be set up within or near active clinical settings (e.g., urgent care facilities). This will be a prospective study conducted at three or more investigational sites located within the United States for the clinical validation of the Metrix Respiratory Panel Test for the detection of SARS-CoV-2, Influenza A, Influenza B, Respiratory syncytial virus, and Rhinovirus in anterior nares (AN) swab samples. Additional sites may be added to the study in order to meet minimum subject/sample enrollment requirements and geographic prevalence of respiratory virus infections. Comparator testing will be performed to determine the infection status of each sample for comparison to results generated by the candidate test. The primary comparator for the study will be an FDA-cleared assay for the detection of SARS-CoV-2, Influenza A, Influenza B, Respiratory Syncytial Virus, and Rhinovirus.