<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Aloi, Marina</style></author><author><style face="normal" font="default" size="100%">Bramuzzo, Matteo</style></author><author><style face="normal" font="default" size="100%">Arrigo, Serena</style></author><author><style face="normal" font="default" size="100%">Romano, Claudio</style></author><author><style face="normal" font="default" size="100%">D'Arcangelo, Giulia</style></author><author><style face="normal" font="default" size="100%">Lacorte, Doriana</style></author><author><style face="normal" font="default" size="100%">Gatti, Simona</style></author><author><style face="normal" font="default" size="100%">Illiceto, Maria T</style></author><author><style face="normal" font="default" size="100%">Zucconi, Francesca</style></author><author><style face="normal" font="default" size="100%">Dilillo, Dario</style></author><author><style face="normal" font="default" size="100%">Zuin, Giovanna</style></author><author><style face="normal" font="default" size="100%">Knafelz, Daniela</style></author><author><style face="normal" font="default" size="100%">Ravelli, Alberto</style></author><author><style face="normal" font="default" size="100%">Cucchiara, Salvatore</style></author><author><style face="normal" font="default" size="100%">Alvisi, Patrizia</style></author></authors><translated-authors><author><style face="normal" font="default" size="100%">SIGENP IBD Working Group</style></author></translated-authors></contributors><titles><title><style face="normal" font="default" size="100%">Efficacy and Safety of Adalimumab in Pediatric Ulcerative Colitis: A Real-life Experience from the SIGENP-IBD Registry.</style></title><secondary-title><style face="normal" font="default" size="100%">J Pediatr Gastroenterol Nutr</style></secondary-title><alt-title><style face="normal" font="default" size="100%">J. Pediatr. Gastroenterol. Nutr.</style></alt-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2018 Jun</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">66</style></volume><pages><style face="normal" font="default" size="100%">920-925</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;b&gt;OBJECTIVES: &lt;/b&gt;The aim of this study was to evaluate the effectiveness and safety of adalimumab (ADA) in children with ulcerative colitis (UC) previously treated with infliximab (IFX).&lt;/p&gt;&lt;p&gt;&lt;b&gt;METHODS: &lt;/b&gt;Retrospective study including children with UC from a national registry who received ADA therapy. The primary endpoint was the rate of corticosteroid-free remission at week 52. Secondary outcomes were the rate of sustained clinical remission, primary nonresponse, and loss of response at weeks 12, 30, and 52 and rate of mucosal healing and side effects at week 52.&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS: &lt;/b&gt;Thirty-two children received ADA (median age 10 ± 4 years). Median disease duration before ADA therapy was 27 months. All patients received previous IFX (43% intolerant, 50% nonresponders [37.5% primary, 42.5% secondary nonresponders], 6.7% positive anti-IFX antibodies). Fifty-two weeks after ADA initiation, 13 patients (41%) were in corticosteroid-free remission. Mucosal healing occurred in 9 patients (28%) at 52 weeks. The cumulative probability of a clinical relapse-free course was 69%, 59%, and 53% at 12, 30, and 52 weeks, respectively. Ten patients (31%) had a primary failure and 5 (15%) a loss of response to ADA. No significant differences in efficacy were reported between not-responders and intolerant to IFX (P = 1.0). Overall, 19 patient (59%) maintained ADA during 52-week follow-up. Seven patients (22%) experienced an adverse event, no serious side effects were observed and none resulted in ADA discontinuation.&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSIONS: &lt;/b&gt;Based on our data, ADA seems to be effective in children with UC, allowing to recover a significant percentage of patients intolerant or not-responding to IFX. The safety profile was good.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/29315163?dopt=Abstract</style></custom1></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Stocco, Gabriele</style></author><author><style face="normal" font="default" size="100%">Martelossi, Stefano</style></author><author><style face="normal" font="default" size="100%">Arrigo, Serena</style></author><author><style face="normal" font="default" size="100%">Barabino, Arrigo</style></author><author><style face="normal" font="default" size="100%">Aloi, Marina</style></author><author><style face="normal" font="default" size="100%">Martinelli, Massimo</style></author><author><style face="normal" font="default" size="100%">Miele, Erasmo</style></author><author><style face="normal" font="default" size="100%">Knafelz, Daniela</style></author><author><style face="normal" font="default" size="100%">Romano, Claudio</style></author><author><style face="normal" font="default" size="100%">Naviglio, Samuele</style></author><author><style face="normal" font="default" size="100%">Favretto, Diego</style></author><author><style face="normal" font="default" size="100%">Cuzzoni, Eva</style></author><author><style face="normal" font="default" size="100%">Franca, Raffaella</style></author><author><style face="normal" font="default" size="100%">Decorti, Giuliana</style></author><author><style face="normal" font="default" size="100%">Ventura, Alessandro</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Multicentric Case-Control Study on Azathioprine Dose and Pharmacokinetics in Early-onset Pediatric Inflammatory Bowel Disease.</style></title><secondary-title><style face="normal" font="default" size="100%">Inflamm Bowel Dis</style></secondary-title><alt-title><style face="normal" font="default" size="100%">Inflamm. Bowel Dis.</style></alt-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Adolescent</style></keyword><keyword><style  face="normal" font="default" size="100%">Age of Onset</style></keyword><keyword><style  face="normal" font="default" size="100%">Antimetabolites</style></keyword><keyword><style  face="normal" font="default" size="100%">Azathioprine</style></keyword><keyword><style  face="normal" font="default" size="100%">Case-Control Studies</style></keyword><keyword><style  face="normal" font="default" size="100%">Child</style></keyword><keyword><style  face="normal" font="default" size="100%">Child, Preschool</style></keyword><keyword><style  face="normal" font="default" size="100%">Chromatography, High Pressure Liquid</style></keyword><keyword><style  face="normal" font="default" size="100%">Dose-Response Relationship, Drug</style></keyword><keyword><style  face="normal" font="default" size="100%">Erythrocytes</style></keyword><keyword><style  face="normal" font="default" size="100%">Female</style></keyword><keyword><style  face="normal" font="default" size="100%">Guanine Nucleotides</style></keyword><keyword><style  face="normal" font="default" size="100%">Humans</style></keyword><keyword><style  face="normal" font="default" size="100%">Inflammatory Bowel Diseases</style></keyword><keyword><style  face="normal" font="default" size="100%">Male</style></keyword><keyword><style  face="normal" font="default" size="100%">Mercaptopurine</style></keyword><keyword><style  face="normal" font="default" size="100%">Methyltransferases</style></keyword><keyword><style  face="normal" font="default" size="100%">Thioguanine</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2017 04</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">23</style></volume><pages><style face="normal" font="default" size="100%">628-634</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;&lt;b&gt;BACKGROUND: &lt;/b&gt;Early-onset inflammatory bowel disease (IBD) is generally aggressive, with a high probability of complications and need of surgery. Despite the introduction of highly effective biological drugs, treatment with azathioprine continues to be important even for early-onset IBD; however, in these patients azathioprine response seems to be reduced. This study evaluated azathioprine doses, metabolite concentrations, and their associations with patients' age in children with IBD treated at 6 tertiary pediatric referral centers.&lt;/p&gt;&lt;p&gt;&lt;b&gt;METHODS: &lt;/b&gt;Azathioprine doses, metabolites, and clinical effects were assessed after at least 3 months of therapy in 17 early-onset (age &lt; 6 yr, cases) and 51 nonearly-onset (aged &gt; 12 and &lt;18 yrs, controls) patients with IBD. Azathioprine dose was titrated on therapeutic efficacy (response and adverse effects). Azathioprine metabolites and thiopurine methyltransferase activity were determined by high-performance liquid chromatography with ultra violet-vis detection (HPLC-UV) methods.&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS: &lt;/b&gt;Frequency of patients in remission was similar among early-onset and control groups, respectively (82% and 84%, P value = 0.72). Early-onset patients required higher doses of azathioprine (median 2.7 versus 2.0 mg·kg·d, P value = 1.1 × 10). Different doses resulted in comparable azathioprine active thioguanine nucleotide metabolite concentrations (median 263 versus 366 pmol/8 × 10 erythrocytes, P value = 0.41) and methylmercaptopurine nucleotide concentrations (median 1455 versus 1532 pmol/8 × 10 erythrocytes, P value = 0.60). Lower ratios between thioguanine nucleotide metabolites and azathioprine doses were found in early-onset patients (median 98 versus 184 pmol/8 × 10 erythrocytes·mg·kg·d, P value = 0.017). Interestingly, early-onset patients presented also higher thiopurine methyltransferase activity (median 476 versus 350 nmol methylmercaptopurine/mg hemoglobin/h, P-value = 0.046).&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSIONS: &lt;/b&gt;This study demonstrated that patients with early-onset IBD present increased inactivating azathioprine metabolism, likely because of elevated activity of the enzyme thiopurine methyltransferase.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><custom1><style face="normal" font="default" size="100%">http://www.ncbi.nlm.nih.gov/pubmed/28296824?dopt=Abstract</style></custom1></record></records></xml>