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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Our patient was a 46-year-old man who had been diagnosed with plaque psoriasis 27 years earlier and reported no previous axial or peripheral joint signs&#46; Over the preceding years he had responded poorly to narrowband ultraviolet-B phototherapy&#44; methotrexate&#44; cyclosporine&#44; etanercept&#44; adalimumab&#44; ustekinumab&#44; and infliximab&#46; At the time of the consultation he had numerous generalized plaques &#40;psoriasis area and severity index &#91;PASI&#93;&#44; 10&#41;&#46; Treatment was started with subcutaneous ixekizumab at the usual dose&#46; After the first dose of 160&#160;mg&#44; the patient reported generalized migratory arthralgias that intensified and became disabling after the second dose of 80&#160;mg&#44; prompting an emergency visit to the rheumatology service&#46; Physical examination revealed pain and marked limitation of cervical spinal cord mobility with no involvement of the lumbar or sacroiliac spinal cord &#40;normal response in the Schober test and negative response to sacroiliac manipulation&#41;&#44; pain and limited mobility of the scapular and pelvic girdles&#44; pain and mild swelling of the carpal joints&#44; and pain without swelling in the ankles&#44; knees&#44; and the small joints of the fingers&#46; The painful joint count &#40;PJC28&#41; was 10 &#40;carpal joints&#44; knees&#44; shoulders&#44; and second and third bilateral metacarpophalangeal joints&#41;&#44; and the swollen joint count &#40;SJC28&#41; was 2 &#40;carpal joints&#41;&#46; Based on these findings&#44; the patient was diagnosed with paradoxical arthritis&#46; With the patient&#39;s consent ixekizumab treatment was discontinued&#44; and he was treated with a tapering dose of oral prednisone &#40;20&#160;mg&#47;d&#41; for 10 days&#44; resulting in almost complete resolution of the joint problems&#46; Upon reaching the end of the corticosteroid regimen&#44; the patient was treated with secukinumab at the usual dose &#40;300&#160;mg&#41;&#46; After 10 months of coordinated monitoring by the dermatology and rheumatology services&#44; the patient&#39;s psoriasis had markedly improved &#40;PASI&#44; 1&#41;&#44; with no adverse effects or joint symptoms&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">Ixekizumab is a humanized IgG4 monoclonal antibody that acts to neutralize IL-17A&#44; and in clinical trials has shown high efficacy in patients with plaque psoriasis<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">1</span></a> and psoriatic arthritis&#44;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">2</span></a> with an acceptable safety profile<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">3</span></a> and no adverse effects on joints&#46; In the present case&#44; the coincidence of ixekizumab injections and the sudden onset of joint symptoms in a patient with no history of arthritis&#44; together with the progressive disappearance of these symptoms after ixekizumab discontinuation&#44; suggest a causal relationship between ixekizumab and this adverse effect&#46; The literature describes several cases of so-called paradoxical psoriatic arthritis coinciding with the use of biological treatments for plaque psoriasis&#44; including efalizumab&#44;<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">4</span></a> etanercept&#44; adalimumab&#44;<a class="elsevierStyleCrossRef" href="#bib0055"><span class="elsevierStyleSup">5</span></a> infliximab&#44; and ustekinumab&#44;<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">6</span></a> but none involving IL-17 inhibitors&#46; The appearance of paradoxical psoriatic arthritis in this case underscores the pathogenic complexity of this disease&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">In conclusion&#44; despite the absence from the literature of any reports of adverse joint effects caused by ixekizumab&#44; we describe a case of paradoxical arthritis that was associated with ixekizumab treatment&#44; discontinuation of which was ultimately required&#46; Long-term follow-up studies will be necessary to determine the frequency and causality of this adverse effect&#46;</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Conflicts of Interest</span><p id="par0020" class="elsevierStylePara elsevierViewall">The authors declare that they have no conflicts of interest&#46;</p></span></span>"
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Case and Research Letters
Paradoxical Arthritis Due to Ixekizumab in a Patient With Plaque Psoriasis
Artritis paradójica por ixekizumab en un paciente con psoriasis en placas
D. Vidala,
Corresponding author
david.vidal@sanitatintegral.org

Corresponding author.
, S. Rosb, D. Reinac
a Servicio de Dermatología, Hospital de Sant Joan Despí Moisès Broggi, Sant Joan Despí, Barcelona, España
b Servicio de Reumatología, Hospital de Viladecans, Viladecans, Barcelona, España
c Servicio de Reumatología, Hospital de Sant Joan Despí Moisès Broggi, Sant Joan Despí, Barcelona, España
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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Our patient was a 46-year-old man who had been diagnosed with plaque psoriasis 27 years earlier and reported no previous axial or peripheral joint signs&#46; Over the preceding years he had responded poorly to narrowband ultraviolet-B phototherapy&#44; methotrexate&#44; cyclosporine&#44; etanercept&#44; adalimumab&#44; ustekinumab&#44; and infliximab&#46; At the time of the consultation he had numerous generalized plaques &#40;psoriasis area and severity index &#91;PASI&#93;&#44; 10&#41;&#46; Treatment was started with subcutaneous ixekizumab at the usual dose&#46; After the first dose of 160&#160;mg&#44; the patient reported generalized migratory arthralgias that intensified and became disabling after the second dose of 80&#160;mg&#44; prompting an emergency visit to the rheumatology service&#46; Physical examination revealed pain and marked limitation of cervical spinal cord mobility with no involvement of the lumbar or sacroiliac spinal cord &#40;normal response in the Schober test and negative response to sacroiliac manipulation&#41;&#44; pain and limited mobility of the scapular and pelvic girdles&#44; pain and mild swelling of the carpal joints&#44; and pain without swelling in the ankles&#44; knees&#44; and the small joints of the fingers&#46; The painful joint count &#40;PJC28&#41; was 10 &#40;carpal joints&#44; knees&#44; shoulders&#44; and second and third bilateral metacarpophalangeal joints&#41;&#44; and the swollen joint count &#40;SJC28&#41; was 2 &#40;carpal joints&#41;&#46; Based on these findings&#44; the patient was diagnosed with paradoxical arthritis&#46; With the patient&#39;s consent ixekizumab treatment was discontinued&#44; and he was treated with a tapering dose of oral prednisone &#40;20&#160;mg&#47;d&#41; for 10 days&#44; resulting in almost complete resolution of the joint problems&#46; Upon reaching the end of the corticosteroid regimen&#44; the patient was treated with secukinumab at the usual dose &#40;300&#160;mg&#41;&#46; After 10 months of coordinated monitoring by the dermatology and rheumatology services&#44; the patient&#39;s psoriasis had markedly improved &#40;PASI&#44; 1&#41;&#44; with no adverse effects or joint symptoms&#46;</p><p id="par0010" class="elsevierStylePara elsevierViewall">Ixekizumab is a humanized IgG4 monoclonal antibody that acts to neutralize IL-17A&#44; and in clinical trials has shown high efficacy in patients with plaque psoriasis<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">1</span></a> and psoriatic arthritis&#44;<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">2</span></a> with an acceptable safety profile<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">3</span></a> and no adverse effects on joints&#46; In the present case&#44; the coincidence of ixekizumab injections and the sudden onset of joint symptoms in a patient with no history of arthritis&#44; together with the progressive disappearance of these symptoms after ixekizumab discontinuation&#44; suggest a causal relationship between ixekizumab and this adverse effect&#46; The literature describes several cases of so-called paradoxical psoriatic arthritis coinciding with the use of biological treatments for plaque psoriasis&#44; including efalizumab&#44;<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">4</span></a> etanercept&#44; adalimumab&#44;<a class="elsevierStyleCrossRef" href="#bib0055"><span class="elsevierStyleSup">5</span></a> infliximab&#44; and ustekinumab&#44;<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">6</span></a> but none involving IL-17 inhibitors&#46; The appearance of paradoxical psoriatic arthritis in this case underscores the pathogenic complexity of this disease&#46;</p><p id="par0015" class="elsevierStylePara elsevierViewall">In conclusion&#44; despite the absence from the literature of any reports of adverse joint effects caused by ixekizumab&#44; we describe a case of paradoxical arthritis that was associated with ixekizumab treatment&#44; discontinuation of which was ultimately required&#46; Long-term follow-up studies will be necessary to determine the frequency and causality of this adverse effect&#46;</p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Conflicts of Interest</span><p id="par0020" class="elsevierStylePara elsevierViewall">The authors declare that they have no conflicts of interest&#46;</p></span></span>"
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Article information
ISSN: 15782190
Original language: English
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Idiomas
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