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  <front>
    <journal-meta>
      <journal-id journal-id-type="pmc">JRMS</journal-id>
      <journal-id journal-id-type="pubmed">J Res Med Sci</journal-id>
      <journal-id journal-id-type="publisher-id">Journal of Research in Medical Sciences</journal-id>
      <journal-title>Journal of Research in Medical Sciences</journal-title>
      <issn pub-type="ppub">1735-1995</issn>
      <issn pub-type="epub">1735-7136</issn>
      <publisher>
        <publisher-name>Medknow Publications Pvt Ltd</publisher-name>
        <publisher-loc>India</publisher-loc>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="publisher-id">JRMS-18-368</article-id>
      <article-id pub-id-type="pmid">24124440</article-id>
      <article-categories>
        <subj-group subj-group-type="headings">
          <subject>Letter to Editor</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Pegylated interferon/telbivudine sequential therapy in Hepatitis Be antigen negative severe chronic hepatitis B patient</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name>
            <surname>Caroleo</surname>
            <given-names>Benedetto</given-names>
          </name>
          <xref ref-type="aff" rid="aff1" />
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Staltari</surname>
            <given-names>Orietta</given-names>
          </name>
          <xref ref-type="aff" rid="aff2" />
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Gallelli</surname>
            <given-names>Luca</given-names>
          </name>
          <xref ref-type="aff" rid="aff3" />
          <xref ref-type="corresp" rid="cor1" />
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Guadagnino</surname>
            <given-names>Vincenzo</given-names>
          </name>
          <xref ref-type="aff" rid="aff4" />
        </contrib>
      </contrib-group>
      <aff id="aff1">Department of Medicine, Infective Diseases Unit, Mater Domini University Hospital, Viale Europa 88100 Catanzaro, Italy</aff>
      <aff id="aff2">Department of Medicine, Infective Diseases Unit, Mater Domini University Hospital, Viale Europa 88100 Catanzaro, Italy</aff>
      <aff id="aff3">Department of Health Science, School of Medicine, University Magna Graecia of Catanzaro, Clinical Pharmacology Unit, Mater Domini University Hospital, Catanzaro, Italy</aff>
      <aff id="aff4">Department of Medicine, Infective Diseases Unit, Mater Domini University Hospital, Viale Europa 88100 Catanzaro, Italy</aff>
      <author-notes>
        <corresp id="cor1">
        <bold>Address for correspondence:</bold>Luca Gallelli, Department of Health Science, School of Medicine, University of Catanzaro, Viale Europa Germaneto, 88100 Catanzaro, Italy 
        <email xlink:href="gallelli@unicz.it">gallelli@unicz.it</email></corresp>
      </author-notes>
      <pub-date pub-type="ppub">
        <season>April</season>
        <year>2013</year>
      </pub-date>
      <volume>18</volume>
      <issue>4</issue>
      <fpage>368</fpage>
      <lpage>369</lpage>
      <permissions>
        <copyright-statement>Copyright: &#x000a9; Journal of Research in Medical Sciences</copyright-statement>
        <copyright-year>2013</copyright-year>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc-sa/3.0">
          <p>This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p>
        </license>
      </permissions>
    </article-meta>
  </front>
  <body>
    <sec>
      <title />
      <p>Sir,</p>
      <p>We report the effect of sequential Pegylated-Interferon-alpha-2a (Peg-IFN-alpha-2a)/telbivudine treatment in a patient affected by a severe Hepatitis B e Antigen (HBeAg) negative chronic Hepatitis B Virus (HBV) infection treated at our facility. We discuss the rationale of this innovative therapeutic strategy for the prolonged/long life treatment of severe chronic hepatitis B (CHB).</p>
      <p>A 63-year-old man with a 22 years history of CHB presented at our center for HBV infection evaluation. He was affected by a clinically documented severe CHB infection, confirmed also by Fibroscan&#174; (fibroscan stiffness Kp 13). The patient was HBeAg negative, HBV deoxyribonucleotide (DNA) positive (basal HBV DNA levels 2,700,000 IU/mL by real time polymerase chain reaction (rt-pcr)), serum alanine aminotransferase (ALT) levels 140 IU/L (upper normal limit, UNL 41 IU/L), functional class on admission Child-Pugh score was A5 without portal hypertension, negative for anti-Hepatitis delta virus (HDV) and anti-Hepatitis C virus (HCV) antibodies.</p>
      <p>At the basal screening, several possible causes of liver diseases including, autoimmune, thesaurismosic and metabolic origin-were excluded.</p>
      <p>On February 23 
      <sup>rd</sup>2007, patient began antiviral therapy with Peg-IFN-alpha-2a (180 &#956;g weekly subcutaneously) with a satisfactory virologic suppression at week 4 (HBV DNA 159,000 IU/mL; ALT 339 IU/L) and week 12 (HBV DNA levels &lt;30 IU/mL, ALT 65 IU/L). At follow-up, 48 weeks after beginning of Peg-IFN-alpha-2a, blood tests documented a complete suppression of HBV DNA levels (&lt;12 IU/mL) and a normalization in ALT plasma values (38 IU/L). Antiviral treatment ended on February 6 
      <sup>th</sup>2008.</p>
      <p>At week 4 and 8 following treatment suspension, we recorded an increase in HBV DNA plasma levels (28,200 IU/mL) with normal ALT values 
      <xref ref-type="fig" rid="F1">Figure 1</xref>.</p>
      <p>After 12-week drug-free period, on May 6 
      <sup>th</sup>2008 we decided to start antiviral therapy for HBV reactivation using telbivudine 600 mg/day in oral therapy. A rapid virologic and biochemical response was observed after 4 weeks; specifically, HBV DNA was undetectable (&lt;12 UI/mL) and ALT values were normal. No increase in plasma creatine phosphokinase (CPK) levels was observed 
      <xref ref-type="fig" rid="F2">Figure 2</xref>.</p>
      <p>At the 52 
      <sup>nd</sup>week of telbivudine therapy, we recorded an increase in CPK levels. Anamnesis suggested CPK peak was related to an intense physical activity. After 3 days of muscular rest, CPK levels spontaneously returned to normal values as documented by a following medical checkup.</p>
      <p>Currently, on March 2012 after 167 weeks from the beginning of telbivudine, blood tests show normal ALT and CPK plasma values, and HBV DNA remains undetectable (&lt;12 UI/mL). Moreover, no adverse drug reactions associated with telbivudine treatment have been observed 
      <xref ref-type="fig" rid="F2">Figure 2</xref>.</p>
      <p>In conclusion, we report the effect of Peg-IFN-alpha-2a/telbivudine sequential treatment in severe chronic HBV infection. To our knowledge, this is the first report on the efficacy of a sequential therapy including the administration of telbivudine as NA.</p>
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