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      In vitro Removal of Therapeutic Drugs with a Novel Adsorbent System

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          Abstract

          Background/Aim: Substances in the middle molecular weight range have been shown to play a significant pathogenetic role in as diverse disorders as end-stage renal disease and multiple organ failure. To overcome the limitations in the amount removed by hemofilters, new sorbents with a high biocompatibility are actively being developed. Furthermore, biocompatible sorbents by their nonspecific adsorptive behavior could have great impact on detoxification treatment in exogenous intoxications. We performed an in vitro evaluation of a newly developed highly biocompatible sorbent cartridge (Betasorb<sup>®</sup>), examining its adsorptive capacity concerning therapeutic drugs. Methods: Uremic blood spiked with a range of therapeutic drugs was recirculated for 2 h in an in vitro hemoperfusion circuit containing a Betasorb device for hemoperfusion. The drug concentrations before and after the passage of the cartridge were measured, and the total amount removed was calculated. Results: The sorbent showed effective removal of glycopeptide antibiotics, digoxin, theophylline, phenobarbital, phenytoin, carbamazepine, and valproic acid. Moderate removal could be demonstrated for tacrolimus and cyclosporine A; aminoglycosides were removed to a small extent only. Conclusions: Betasorb hemoperfusion shows a potent adsorptive capacity concerning therapeutic drugs (except aminoglycosides) and could be of major value in the treatment of intoxications. On the other hand, drug monitoring and possible adjustments are necessary during Betasorb hemoperfusion to maintain the therapeutic ranges of the drugs in blood.

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          Author and article information

          Journal
          BPU
          Blood Purif
          10.1159/issn.0253-5068
          Blood Purification
          S. Karger AG
          0253-5068
          1421-9735
          2002
          2002
          12 August 2002
          : 20
          : 4
          : 380-388
          Affiliations
          aUniversity Children’s Hospital, Kinderklinik und Kinderpoliklinik am Dr. von Haunerschen Kinderspital, Munich, Germany; Departments of bNephrology, cClinical Chemistry, dPharmacy, and eImmunohematology, Ospedale San Bortolo, Vicenza, Italy; fAustin and Repatriation Medical Centre, Heidelberg, Vic., Australia
          Article
          63108 Blood Purif 2002;20:380–388
          10.1159/000063108
          12169849
          © 2002 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          Page count
          Figures: 10, Tables: 3, References: 16, Pages: 9
          Product
          Self URI (application/pdf): https://www.karger.com/Article/Pdf/63108
          Categories
          Original Paper

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