COVID-19 convalescent plasma donor recruitment experience from the perspective of a hospital transfusion medicine service.
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ABSTRACT:
SUBMITTER: Wade J
PROVIDER: S-EPMC8242920 | biostudies-literature | 2021 Jul
REPOSITORIES: biostudies-literature
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COVID-19 convalescent plasma donor recruitment experience from the perspective of a hospital transfusion medicine service.
Wade Jenna J Dent Edward A EA Wooten Melanie S MS Moosavi Mitchell M Butler Hailly H Lough Christopher C Verkerke Hans H Kamili Nourine A NA Maier Cheryl L CL Josephson Cassandra D CD Roback John D JD Stowell Sean R SR Sullivan Harold C HC
Transfusion 20210613 7
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Project description:ObjectivesSerologic testing for antibodies to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in potential donors of coronavirus disease 2019 (COVID-19) convalescent plasma (CCP) may not be performed until after blood donation. A hospital-based recruitment program for CCP may be an efficient way to identify potential donors prospectively.MethodsPatients who recovered from known or suspected COVID-19 were identified and recruited through medical record searches and public appeals in March and April 2020. Participants were screened with a modified donor history questionnaire and, if eligible, were asked for consent and tested for SARS-CoV-2 antibodies (IgG and IgM). Participants positive for SARS-CoV-2 IgG were referred for CCP collection.ResultsOf 179 patients screened, 128 completed serologic testing and 89 were referred for CCP donation. IgG antibodies to SARS-CoV-2 were detected in 23 of 51 participants with suspected COVID-19 and 66 of 77 participants with self-reported COVID-19 confirmed by polymerase chain reaction (PCR). The anti-SARS-CoV-2 IgG level met the US Food and Drug Administration criteria for "high-titer" CCP in 39% of participants confirmed by PCR, as measured by the Ortho VITROS IgG assay. A wide range of SARS-CoV-2 IgG levels were observed.ConclusionsA hospital-based CCP donor recruitment program can prospectively identify potential CCP donors. Variability in SARS-CoV-2 IgG levels has implications for the selection of CCP units for transfusion.
| S-EPMC7929413 | biostudies-literature
Project description:BackgroundSince early 2020, convalescent plasma has been widely used for treating coronavirus disease 2019 (COVID-19). There is limited information regarding donor tolerability of convalescent plasma donation. In this study, we evaluated the short-term donor tolerability of convalescent plasma donation.MethodsA prospective study of 309 convalescent plasma donation related adverse events were conducted at Wuhan Blood Center of China, from February 12 to April 1, 2020. Additionally, up to 28-day post-donation follow-ups were performed on the donors.ResultsSixteen (5.2%) adverse events were reported in 309 donations. All of these were mild vasovagal without loss of consciousness. The frequency of adverse reactions was higher in donors with a per donation volume of >8 mL/kg body weight or ≥ 600 mL, <100 mm Hg in pre-donation systolic blood pressure, or less than 28 days from the onset of COVID-19 symptoms. There was no correlation to donation history, weight, sex, ABO blood type, pre-donation diastolic blood pressure, pulse, or hemoglobin.ConclusionThe donation of convalescent plasma is generally safe. Mitigation of risk factors associated with adverse events can further enhance donor tolerability of convalescent plasma donation.
| S-EPMC8013347 | biostudies-literature
Project description:We aimed to model binding of donor antibodies to virus that infects COVID-19 patients following transfusion of convalescent plasma (CCP). An immunosorbent assay was developed to determine apparent affinity (Kd, app). Antibody binding to virus was modelled using antibody concentration and estimations of viral load. Assay and model were validated using reference antibodies and clinical data of monoclonal antibody therapy. A single Kd, app or two resolvable Kd, app were found for IgG in 11% or 89% of CCP donations, respectively. For IgA this was 50%-50%. Median IgG Kd, app was 0.8nM and 3.6nM for IgA, ranging from 0.1-14.7nM and 0.2-156.0nM respectively. The median concentration of IgG was 44.0nM (range 8.4-269.0nM) and significantly higher than IgA at 2.0nM (range 0.4-11.4nM). The model suggested that a double CCP transfusion (i.e. 500 mL) allows for > 80% binding of antibody to virus provided Kd, app was < 1nM and concentration > 150nM. In our cohort from the pre-vaccination era, 4% of donations fulfilled these criteria. Low and mid-range viral loads are found early post exposure, suggesting that convalescent plasma will be most effective then. This study provides a biochemical rationale for selecting high affinity and high antibody concentration CCP transfused early in the disease course.
| S-EPMC11464705 | biostudies-literature
Project description:ObjectivesTo describe the immunological responses and clinical outcome of coronavirus (SARS) infected healthcare workers (HCW) who had been administered with convalescent plasma as a treatment.MethodsConvalescent plasma (500 mL) was obtained from each of three SARS patients and transfused into the three infected HCW. Donors were blood type O and seronegative for hepatitis B and C, HIV, syphilis and human T-cell lymphotropic virus types I and II (HTLV-I and -II). Serum antibody (IgG) titre was >640. Apharesis was performed with a CS 3000 plus cell separator followed by the forming of the convalescent phase plasma. As part of the routine check with donated plasma, the convalescent plasma was confirmed free of residual SARS-CoV by RT-PCR. Serial serum samples obtained from the recipients of the convalescent plasma were collected to undertake real-time quantitative RT-PCR for SARS-CoV for direct measurement of viral concentration. Specific immunoglobulin IgM and IgG concentrations were titrated using an antigen microarray developed in-house.ResultsViral load dropped from 495 x 10(3), 76 x 10(3) or 650 x 10(3) copies/mL to zero or 1 copy/mL one day after transfusion. Anti-SARS-CoV IgM and IgG also increased in a time-dependent manner following transfusion. All three patients survived. One HCW became pregnant subsequently, delivering 13 months after discharge. Positive anti-SARS-CoV IgG was detected in the newborn. Passive transfer of anti-SARS-CoV antibody from the mother was considered as a possibility.ConclusionsAll infected HCW whose condition had progressed severely and who had failed to respond to the available treatment, survived after transfusion with convalescent plasma.
| S-EPMC7110092 | biostudies-literature
Project description:BackgroundThe reported incidence of adverse reactions following Coronavirus disease 2019 (COVID-19) convalescent plasma (CCP) transfusion has generally been lower than expected based on the incidence of transfusion reactions that have been observed in studies of conventional plasma transfusion. This raises the concern for under-reporting of adverse events in studies of CCP that rely on passive surveillance strategies.Materials and methodsOur institution implemented a protocol to actively identify possible adverse reactions to CCP transfusion. In addition, we retrospectively reviewed the charts of inpatients who received CCP at Stanford Hospital between May 13, 2020 and January 31, 2021. We determined the incidence of adverse events following CCP transfusion.ResultsA total of 49 patients received CCP. Seven patients (14%) had an increased supplemental oxygen requirement within 4 h of transfusion completion, including one patient who was intubated during the transfusion. An additional 11 patients (total of 18, 37%) had increased oxygen requirements within 24 h of transfusion, including 3 patients who were intubated. Six patients (12%) fulfilled criteria for transfusion-associated circulatory overload (TACO).ConclusionUsing an active surveillance strategy, we commonly observed adverse events following the transfusion of CCP to hospitalized patients. It was not possible to definitively determine whether or not these adverse events are related to CCP transfusion. TACO was likely over-diagnosed given overlap with the manifestations of COVID-19. Nevertheless, these results suggest that the potential adverse effects of CCP transfusion may be underestimated by reports from passive surveillance studies.
| S-EPMC8661846 | biostudies-literature
Project description:The recent outbreak of COVID-19 in the world is currently a big threat to global health and economy. Convalescent plasma has been confirmed effective against the novel corona virus in preliminary studies. In this paper, we first described the therapeutic schedule, antibody detection method, indications, contraindications of the convalescent plasmas and reported the effectiveness of convalescent plasma therapy by a retrospective cohort study.
| S-EPMC8034927 | biostudies-literature
Project description: Not available
| S-EPMC8132742 | biostudies-literature
Project description:IntroductionPlasma harvested from convalescent COVID-19 patients (CCP) has been applied as first-line therapy in the early phase of the SARS-CoV2 pandemic through clinical studies using various protocols.MethodsWe present data from a cohort of 267 hospitalized severe COVID-19 patients who received CCP. No transfusion-related complications were reported, indicating the overall safety of CCP therapy.ResultsPatients who eventually died from COVID-19 received CCP significantly later (3.95 versus 5.22 days after hospital admission) and had higher interleukin 6 (IL-6) levels (28.9 pg/ml versus 102.5 pg/ml) than those who survived. In addition, CCP transfusion caused a significant reduction in the overall inflammatory status of the patients regardless of the severity of disease or outcome, as evidenced by decreasing C-reactive protein, IL6 and ferritin levels.ConclusionWe conclude that CCP transfusion is a safe and effective supplementary treatment modality for hospitalized COVID-19 patients characterized by better expected outcome if applied as early as possible. We also observed that IL-6 may be a suitable laboratory parameter for patient selection and monitoring of CCP therapy effectiveness.
| S-EPMC8611245 | biostudies-literature
Project description:While there is no proven treatment available for coronavirus disease 2019 (COVID-19), convalescent plasma (CP) may provide therapeutic relief as the number of cases escalate steeply world-wide. At the time of writing this review, vaccines, monoclonal antibodies or drugs are still lacking for the recent large COVID-19 outbreak, which restores the interest in CP as an empirical life-saving treatment. However, formal proof of efficacy is needed. The purpose of this review is to summarize all historical clinical trials on COVID-19 infected patients treated with CP to provide precise evidence for the efficacy and effectiveness of CP therapy in severe COVID-19 patients. Although there are many clinical trials in progress, high-quality clinical evidence is still lacking to analyze the existing problems. Meanwhile, based on the previous successful outcomes, we recommend healthcare systems to use CP therapy cautiously in critically ill COVID-19 patients.
| S-EPMC7314270 | biostudies-literature
Project description:Therapeutic Biliary Endoscopy (TBE) is becoming a popular mode of treatment for patients with obstructive jaundice. This paper highlights our early experience of TBE at Armed Forces Medical College and Command Hospital (SC), Pune with this mode of treatment. TBE was used as a primary therapeutic option in 46 patients with obstructive jaundice. The age of the patients ranged from 11 to 80 (mean and SD:45.5 ± 16) years and majority 29 (63%) were males. The cause of obstructive jaundice in these patients was choledocholithiasis (n=31), benign biliary stricture (n=8), post cholecystectomy recurrent stones (n=3), carcinoma of pancreas (n=3) and papillary stenosis (n-1). Endoscopic Sphincterotomy (ES) was technically successful in all the 46 patients and brought prompt symptomatic relief in 43 patients. Sixteen patients (34.8%) required additional drainage such as stenting or nasobiliary drain. In patients with choledocholithiasis, bile duct could be cleared of stones in 29 (93.5%) patients and in two surgical removal was required. Of the remaining patients, surgery was required in 4 (50%) patients with benign biliary structure, in 1 (33.3%) of those with malignant stricture and none of the patients presenting with papillary stenosis or recurrent bile duct stones after cholecystectomy. Complications were seen in only two patients (4.4%): one had mild acute pancreatitis and another had GI bleed, which did not require blood transfusion. Both the complications were self-limiting. No procedure related deaths were noted. Endoscopic therapy, thus, a simple, effective and safe method of treatment in patients with choledocholithiasis and selected patients with malignant biliary obstruction.
| S-EPMC5531617 | biostudies-other