Isabella C Schoepf, Carlotta Riebensahm, Chiara Becchetti, Valentine Blaser, Céline V Unternährer, Vanessa Banz, Cédric Hirzel, Franziska M Suter-Riniker, Annalisa Berzigotti
{"title":"肝移植受者对SARS-CoV-2 mRNA疫苗体液免疫反应的进化——一项纵向研究","authors":"Isabella C Schoepf, Carlotta Riebensahm, Chiara Becchetti, Valentine Blaser, Céline V Unternährer, Vanessa Banz, Cédric Hirzel, Franziska M Suter-Riniker, Annalisa Berzigotti","doi":"10.57187/smw.2023.40118","DOIUrl":null,"url":null,"abstract":"<p><strong>Background and aim: </strong>Liver transplant recipients show suboptimal vaccine-elicited immune responses to severe acute respiratory coronavirus 2 (SARS-CoV-2) vaccination. This study aimed to assess real-world data on SARS-CoV-2 antibodies after the second and third SARS-CoV-2 vaccination in liver transplant recipients in Switzerland.</p><p><strong>Methods: </strong>We enrolled liver transplant recipients who attended regular follow-up visits between 01/07/2021 and 30/04/2022 at the outpatient clinic of the Department of Visceral Surgery and Medicine at Bern University Hospital, Switzerland. Following the Swiss Federal Office of Public Health recommendations, we measured SARS-CoV-2 anti-spike IgG antibodies in 117 liver transplant recipients ≥4 weeks after the second SARS-CoV-2 mRNA vaccination from 07/2021-04/2022. In case of antibody levels of <100 AU/ml, patients received a third vaccination and antibodies were re-measured. Patients with antibody levels of >100 AU/ml were defined as \"responders\", those with 12-100 AU/ml as \"partial responders\" and those with <12 AU/ml as \"non-responders\".</p><p><strong>Results: </strong>After two vaccinations, 36/117 (31%) were responders, 42/117 (36%) were partial responders and 39/117 (33%) were non-responders. The humoral immune response improved significantly after the third vaccination, resulting in 31/55 (56%) responders among the previous partial or non-responders. A total of 26 patients developed COVID-19, of whom two had a moderate or severe course (both non-responders after three doses).</p><p><strong>Discussion: </strong>One third of liver transplant recipients showed an optimal response following two vaccinations; a third dose achieved a complete antibody response in more than half of partial and non-responders. We observed only one severe course of COVID-19 and no deaths from COVID-19 in the vaccinated liver transplant recipients.</p>","PeriodicalId":22111,"journal":{"name":"Swiss medical weekly","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evolution of humoral immune response to SARS-CoV-2 mRNA vaccine in liver transplant recipients - a longitudinal study.\",\"authors\":\"Isabella C Schoepf, Carlotta Riebensahm, Chiara Becchetti, Valentine Blaser, Céline V Unternährer, Vanessa Banz, Cédric Hirzel, Franziska M Suter-Riniker, Annalisa Berzigotti\",\"doi\":\"10.57187/smw.2023.40118\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background and aim: </strong>Liver transplant recipients show suboptimal vaccine-elicited immune responses to severe acute respiratory coronavirus 2 (SARS-CoV-2) vaccination. This study aimed to assess real-world data on SARS-CoV-2 antibodies after the second and third SARS-CoV-2 vaccination in liver transplant recipients in Switzerland.</p><p><strong>Methods: </strong>We enrolled liver transplant recipients who attended regular follow-up visits between 01/07/2021 and 30/04/2022 at the outpatient clinic of the Department of Visceral Surgery and Medicine at Bern University Hospital, Switzerland. Following the Swiss Federal Office of Public Health recommendations, we measured SARS-CoV-2 anti-spike IgG antibodies in 117 liver transplant recipients ≥4 weeks after the second SARS-CoV-2 mRNA vaccination from 07/2021-04/2022. In case of antibody levels of <100 AU/ml, patients received a third vaccination and antibodies were re-measured. Patients with antibody levels of >100 AU/ml were defined as \\\"responders\\\", those with 12-100 AU/ml as \\\"partial responders\\\" and those with <12 AU/ml as \\\"non-responders\\\".</p><p><strong>Results: </strong>After two vaccinations, 36/117 (31%) were responders, 42/117 (36%) were partial responders and 39/117 (33%) were non-responders. The humoral immune response improved significantly after the third vaccination, resulting in 31/55 (56%) responders among the previous partial or non-responders. A total of 26 patients developed COVID-19, of whom two had a moderate or severe course (both non-responders after three doses).</p><p><strong>Discussion: </strong>One third of liver transplant recipients showed an optimal response following two vaccinations; a third dose achieved a complete antibody response in more than half of partial and non-responders. We observed only one severe course of COVID-19 and no deaths from COVID-19 in the vaccinated liver transplant recipients.</p>\",\"PeriodicalId\":22111,\"journal\":{\"name\":\"Swiss medical weekly\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2023-10-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Swiss medical weekly\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.57187/smw.2023.40118\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MEDICINE, GENERAL & INTERNAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Swiss medical weekly","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.57187/smw.2023.40118","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
Evolution of humoral immune response to SARS-CoV-2 mRNA vaccine in liver transplant recipients - a longitudinal study.
Background and aim: Liver transplant recipients show suboptimal vaccine-elicited immune responses to severe acute respiratory coronavirus 2 (SARS-CoV-2) vaccination. This study aimed to assess real-world data on SARS-CoV-2 antibodies after the second and third SARS-CoV-2 vaccination in liver transplant recipients in Switzerland.
Methods: We enrolled liver transplant recipients who attended regular follow-up visits between 01/07/2021 and 30/04/2022 at the outpatient clinic of the Department of Visceral Surgery and Medicine at Bern University Hospital, Switzerland. Following the Swiss Federal Office of Public Health recommendations, we measured SARS-CoV-2 anti-spike IgG antibodies in 117 liver transplant recipients ≥4 weeks after the second SARS-CoV-2 mRNA vaccination from 07/2021-04/2022. In case of antibody levels of <100 AU/ml, patients received a third vaccination and antibodies were re-measured. Patients with antibody levels of >100 AU/ml were defined as "responders", those with 12-100 AU/ml as "partial responders" and those with <12 AU/ml as "non-responders".
Results: After two vaccinations, 36/117 (31%) were responders, 42/117 (36%) were partial responders and 39/117 (33%) were non-responders. The humoral immune response improved significantly after the third vaccination, resulting in 31/55 (56%) responders among the previous partial or non-responders. A total of 26 patients developed COVID-19, of whom two had a moderate or severe course (both non-responders after three doses).
Discussion: One third of liver transplant recipients showed an optimal response following two vaccinations; a third dose achieved a complete antibody response in more than half of partial and non-responders. We observed only one severe course of COVID-19 and no deaths from COVID-19 in the vaccinated liver transplant recipients.
期刊介绍:
The Swiss Medical Weekly accepts for consideration original and review articles from all fields of medicine. The quality of SMW publications is guaranteed by a consistent policy of rigorous single-blind peer review. All editorial decisions are made by research-active academics.