<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-14T02:45:29Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:11351/9807" metadataPrefix="oai_dc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:11351/9807</identifier><datestamp>2025-10-24T10:26:10Z</datestamp><setSpec>com_2072_378070</setSpec><setSpec>com_2072_378040</setSpec><setSpec>col_2072_378092</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
   <dc:title>Tenofovir Disoproxil Fumarate Reduces the Severity of COVID-19 in Patients with Chronic Hepatitis B</dc:title>
   <dc:creator>Mateos Muñoz, Beatriz</dc:creator>
   <dc:creator>Fernández Vázquez, Inmaculada</dc:creator>
   <dc:creator>Hernandez Conde, Marta</dc:creator>
   <dc:creator>Bernal-Monterde, Vanesa</dc:creator>
   <dc:creator>Díaz-Fontenla, Fernando</dc:creator>
   <dc:creator>Marcos-Fosch, Cristina</dc:creator>
   <dc:creator>Buti Ferret, Maria</dc:creator>
   <dc:contributor>Institut Català de la Salut</dc:contributor>
   <dc:contributor>[Mateos-Muñoz B] Hospital Universitario Ramón y Cajal, CIBEREHD, IRYCIS, Universidad de Alcalá, Madrid, Spain. [Buti M, Marcos-Fosch C] Servei d’Hepatologia, Vall d’Hebron Hospital Universitari, Barcelona, Spain. CIBEREHD, Barcelona, Spain. [Fernández Vázquez I] Gastroenterology Department, Hospital Universitario, 12 de Octubre, Madrid, Spain. [Hernández Conde M] Gastroenterology Department, Hospital Universitario Puerta de Hierro, Madrid, Spain. [Bernal-Monterde V] Gastroenterology Department, Hospital Miguel Servet, Zaragoza, Spain. [Díaz-Fontenla F] Gastroenterology Department, Hospital Universitario Gregorio Marañón, Madrid, Spain</dc:contributor>
   <dc:contributor>Vall d'Hebron Barcelona Hospital Campus</dc:contributor>
   <dc:subject>Medicaments antivírics - Ús terapèutic</dc:subject>
   <dc:subject>Hepatitis B - Tractament</dc:subject>
   <dc:subject>COVID-19 (Malaltia) - Tractament</dc:subject>
   <dc:subject>DISEASES::Virus Diseases::DNA Virus Infections::Hepadnaviridae Infections::Hepatitis B::Hepatitis B, Chronic</dc:subject>
   <dc:subject>Other subheadings::Other subheadings::Other subheadings::/drug therapy</dc:subject>
   <dc:subject>CHEMICALS AND DRUGS::Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Anti-Infective Agents::Antiviral Agents</dc:subject>
   <dc:subject>Other subheadings::Other subheadings::/therapeutic use</dc:subject>
   <dc:subject>DISEASES::Virus Diseases::RNA Virus Infections::Nidovirales Infections::Coronaviridae Infections::Coronavirus Infections</dc:subject>
   <dc:subject>ENFERMEDADES::virosis::infecciones por virus ADN::infecciones por Hepadnaviridae::hepatitis B::hepatitis B crónica</dc:subject>
   <dc:subject>Otros calificadores::Otros calificadores::Otros calificadores::/farmacoterapia</dc:subject>
   <dc:subject>COMPUESTOS QUÍMICOS Y DROGAS::acciones y usos químicos::acciones farmacológicas::usos terapéuticos::antiinfecciosos::antivíricos</dc:subject>
   <dc:subject>Otros calificadores::Otros calificadores::/uso terapéutico</dc:subject>
   <dc:subject>ENFERMEDADES::virosis::infecciones por virus ARN::infecciones por Nidovirales::infecciones por Coronaviridae::infecciones por Coronavirus</dc:subject>
   <dc:description>COVID-19; Hepatitis B; Tenofovir</dc:description>
   <dc:description>COVID-19; Hepatitis B; Tenofovir</dc:description>
   <dc:description>COVID-19; Hepatitis B; Tenofovir</dc:description>
   <dc:description>Background and Aims&#xd;
HIV-positive patients on tenofovir hydroxyl fumarate (TDF)/emtricitabine have a lower risk of COVID-19 and hospitalization than those given other treatments. Our aim was to analyze the severity of COVID-19 in patients with chronic hepatitis B (CHB) on TDF or entecavir (ETV).&#xd;
Methods&#xd;
Spanish hospital databases (n = 28) including information regarding adult CHB patients on TDF or ETV for the period February 1st to November 30th 2020 were searched for COVID-19, defined as a positive SARS-CoV-2 polymerase chain reaction, and for severe COVID-19.&#xd;
Results&#xd;
Of 4736 patients, 117 had COVID-19 (2.5%), 67 on TDF and 50 on ETV. Compared to patients on TDF, those on ETV showed (p &lt; 0.05) greater rates of obesity, diabetes, ischemic cardiopathy, and hypertension. COVID-19 incidence was similar in both groups (2.3 vs. 2.6%). Compared to TDF, patients on ETV more often (p &lt; 0.01) had severe COVID-19 (36 vs. 6%), required intensive care unit (ICU) (10% vs. 0) or ventilatory support (20 vs. 3%), were hospitalized for longer (10.8 ± 19 vs. 3.1 ± 7 days) or died (10 vs. 1.5%, p = 0.08). In an IPTW propensity score analysis adjusted for age, sex, obesity, comorbidities, and fibrosis stage, TDF was associated with a sixfold reduction in severe COVID-19 risk (adjusted-IPTW-OR 0.17, 95%CI 0.04–0.67, p = 0.01).&#xd;
Conclusion&#xd;
Compared to ETV, TDF seems to play a protective role in CHB patients with SARS-CoV-2 whereby the risk of severe COVID-19 is lowered.</dc:description>
   <dc:description>Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. No funding sources needed.</dc:description>
   <dc:date>2023-06-20T07:31:56Z</dc:date>
   <dc:date>2023-06-20T07:31:56Z</dc:date>
   <dc:date>2023-06</dc:date>
   <dc:type>info:eu-repo/semantics/article</dc:type>
   <dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
   <dc:identifier>Mateos-Muñoz B, Buti M, Fernández Vázquez I, Hernández Conde M, Bernal-Monterde V, Díaz-Fontenla F, et al. Tenofovir Disoproxil Fumarate Reduces the Severity of COVID-19 in Patients with Chronic Hepatitis B. Dig Dis Sci. 2023 Jun;68(6):2731–7.</dc:identifier>
   <dc:identifier>1573-2568</dc:identifier>
   <dc:identifier>https://hdl.handle.net/11351/9807</dc:identifier>
   <dc:identifier>10.1007/s10620-022-07817-w</dc:identifier>
   <dc:identifier>36737575</dc:identifier>
   <dc:identifier>000941243800001</dc:identifier>
   <dc:identifier>http://hdl.handle.net/11351/9807</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>Digestive Diseases and Sciences;68(6)</dc:relation>
   <dc:relation>https://doi.org/10.1007/s10620-022-07817-w</dc:relation>
   <dc:rights>Attribution-NonCommercial 4.0 International</dc:rights>
   <dc:rights>http://creativecommons.org/licenses/by-nc/4.0/</dc:rights>
   <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
   <dc:format>application/pdf</dc:format>
   <dc:format>application/pdf</dc:format>
   <dc:publisher>Springer</dc:publisher>
   <dc:source>Scientia</dc:source>
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