View clinical trials related to Convalescence.
Filter by:Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19). The global outbreak of COVID-19 is a major public health problem. COVID-19 causes a wide range of symptoms. These symptoms range from mild breathing problems to life-threatening problems or death. Some people have no symptoms. This study aims to learn how acute and late immune responses to COVID-19 lead to different outcomes. The immune system is the body s defense against germs, including viruses, that invade the body. Objective: To characterize the immune responses during and after SARS-CoV-2 infection and determine if there is any relationship to clinical course and outcome. Eligibility: People ages 0 99 who have confirmed or suspected SARS-CoV-2 infection, people who are not infected despite heavy exposure, and relatives of enrolled participants. Design: This is a sample collection protocol to receive send-in biological specimens for exploratory studies, including gene testing. Participants will not be seen at the NIH for study visits. Study staff will talk with participants health care providers to screen them for the study. Participants enrolled into the protocol will send samples and clinical information at least once and more often if the participant has COVID-19. All participants will provide blood samples and possibly stool. We may also ask for left over specimens from any medical procedures completed as part of medical care. The study staff will also request participants health care providers to complete a survey to collect demographic and medical data. Some of this information may need to be provided directly by the participant. Pregnant individuals are invited to participate and may be asked to give cord blood samples after delivery. Study findings that affect participants health may be shared with their health care provider. Depending on findings, participants may be contacted to take part in other NIH studies.
Background: People who get COVID-19 have a wide range of symptoms. They also recover from COVID-19 in different ways. In this study, researchers will use survey data to describe the different ways people experience and recover from COVID-19. They will also use the data to help create future studies to understand why some people do not fully recover. Objective: To learn more about the range and timing of symptoms that people have before, during, and after COVID-19 infection. Eligibility: People ages 18 and older who can give documentation of a positive COVID-19 or antibody test. Design: Participants will be screened with a telephone interview. It will take 15 minutes. They will provide their COVID-19 test results and medical records. Participants will complete a second telephone interview. It will take 30 60 minutes. They will also take online surveys every 3 months for 3 years. The interview and surveys will ask participants about their health before they got COVID-19, what happened while they had COVID-19, and what their recovery has been like. Participants will get log-in data to take the online surveys. Completing all of the surveys the first time may take up to 3 hours. Follow-up surveys will take up to 30 minutes. Participants do not have to complete the surveys in one sitting. They will be able to save their progress and finish the surveys later. Participants may be contacted to take part in other research studies.
As of March 18, 2020, COVID-19 cases were reported in approximately 195 countries. No specific therapeutic agents or vaccines for COVID-19 are available. Several therapies, such as remdesivir and favipiravir, are under investigation, but the antiviral efficacy of these drugs is not yet known. The use of convalescent plasma (CP) was recommended as an empirical treatment during outbreaks of Ebola virus in 2014. A protocol for treatment of Middle East respiratory syndrome coronavirus (MERS-CoV) with CP was established in 2015. This approach with other viral infections such as SARS-CoV, H5N1 avian influenza, and H1N1 influenza also suggested that transfusion of CP was effective. In previous reports, most of the patients received the CP by single transfusion. In a study involving patients with pandemic influenza A(H1N1) 2009 virus infection, treatment of severe infection with CP (n = 20 patients) was associated with reduced respiratory tract viral load, serum cytokine response, and mortality. In another study involving 80 patients with SARS, the administration of CP was associated with a higher rate of hospital discharge at day 22 from symptom onset compared with patients who did not receive CP. Accordingly, these findings raise the hypothesis that use of CP transfusion could be beneficial in patients infected with SARS-CoV-2. The objective of this study is to describe the initial clinical experience with CP transfusion administered to severe COVID-19 patients. The primary endpoint of this trial would be to assess the tolerability, efficacy, and dose-response of CP in severe COVID-19 patients. The secondary endpoint would be to assess the clinical and laboratory parameters after therapy, in-hospital mortality, length of hospital stay, reduction in the proportion of deaths, length of ICU stay, requirement of ventilator and duration of ventilator support. All RT-PCR positive cases with features of severe infection will be enrolled in this study. Apheretic CP will be collected from a recovered patient (consecutive two RT-PCR samples negative) between day 22 to 35 days of recovery and those with the antibody titre above 1:320. This RCT will consist of three arms, a. standard care, b. standard care and 200 ml CP and c. standard care and 400 ml CP as a single transfusion. Twenty (20) patients will be enrolled for each arm. Randomization will be done by someone not associated with the care or assessment of the patients by means of a random number table. Allocations will be concealed in sequentially numbered, opaque, sealed envelopes. Clinical parameters [fever, cough, dyspnea, respiratory rate, PaO2/ FiO2 level, pulse, BP, the requirement of O2, and others] will be recorded before and after CP. Laboratory parameters such as complete blood count, CRP, chest X-ray, SGPT, SGOT, S. Ferritin, and serum antibody titre will be measured before and after transfusion. Allergic or serum sickness-like reactions will be noted and adjusted with outcome. Laboratory tests including RT-PCR will be done at BSMMU virology and laboratory medicine department. Apheretic plasma will be collected at the transfusion medicine department of SHNIBPS hospital, ELISA, antibody titre will be done at CMBT, and patients will be enrolled at DMC and MuMCH. All necessary screening tests will be done before transfusion. Graphpad Prism v 7.0 will be used for analysis. One way ANOVA test, a non-parametric Mann-Whitney test, and a Kruskal-Wallis test will be performed to compare the arms. For parametric outcomes, the investigators will compare the odds ratios across the pairs.
This trial is designed to evaluate the efficacy and safety of moxibustion plus cupping in the convalescence of COVID-19.
The present study will try to respond first in an initial phase, what is the minimum effective dose necessary of convalescent plasma for getting better in severly ill (not intubated) or very severely ill (intubated) patients. Once the dose will be determined by each type of patient group (severely ill vs. very severely ill) has been determined, phase 2 of the study will begin, where the safety and efficacy of the use of plasma will be evaluated based on clinical, imaging and laboratory criteria. So, our hypotheses are: 1. Is there a minimum effective dose to treat seriously ill patients with convalescent plasma with COVID-19? 2. the plasma dose with the minimum effective effect will improve the clinical, laboratory and clearance conditions of the presence of the virus in the severely ill patient?