Consensus Document
Algorithm for Treatment of Chronic Spontaneous Urticaria with Omalizumab
Algoritmo de tratamiento con omalizumab en urticaria crónica espontánea
J. Spertinoa,
, L. Curto Barredob, E. Rozas Muñoza, I. Figueras Nartc, E. Serra Baldricha, M. Bonfill-Ortíc, V. Expósito-Serranod, A. Guilaberte, G. Melé Ninotf, M. Villar Builg, J. Garcias Ladariah, X. García Navarroi, M. Vilavellaj, I. Bielsa Marsolk, G. Aparicio Ortizl, C. Baliu Piquém, A. Álvarez Abellan, N. Lamas Domenecho, J.M. Mascaróp, S. Gómezp..., J.I. Torné Gutiérrezq, A. Vicente Villar, A. Gimenez ArnaubVer más
Corresponding author
a Servicio de Dermatología, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
b Parc de Salut Mar-Hospital del Mar, Barcelona, Spain
c Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Barcelona, Spain
d Corporació Sanitària Parc Taulí, Sabadell, Barcelona, Spain
e Hospital General de Granollers, Granollers, Barcelona, Spain
f Hospital Universitari Sagrat Cor, Barcelona, Spain
g Hospital de Sant Joan Despí Moisès Broggi, Sant Joan Despí, Barcelona, Spain
h Hospital de Manacor, Manacor, Islas Baleares, Spain
i Consorci Sanitari del Garraf, Sant Pere de Ribes, Barcelona, Spain
j Consorci Sanitari de Terrassa, Terrassa, Barcelona, Spain
k Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain
l Hospital Universitari Vall d¿Hebron, Barcelona, Spain
m Consorci Sanitari de l’Anoia, Igualada, Barcelona, Spain
n Hospital Mútua de Terrassa, Terrassa, Barcelona, Spain
o Hospital Dos de Maig, Barcelona, Spain
p Hospital Clínic de Barcelona, Barcelona, Spain
q Hospital Sant Llàtzer, Terrassa, Barcelona, Spain
r Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain
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"apellidos" => "Gimenez Arnau" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] ] ] ] "afiliaciones" => array:18 [ 0 => array:3 [ "entidad" => "Servicio de Dermatología, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "Parc de Salut Mar-Hospital del Mar, Barcelona, Spain" "etiqueta" => "b" "identificador" => "aff0010" ] 2 => array:3 [ "entidad" => "Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Barcelona, Spain" "etiqueta" => "c" "identificador" => "aff0015" ] 3 => array:3 [ "entidad" => "Corporació Sanitària Parc Taulí, Sabadell, Barcelona, Spain" "etiqueta" => "d" "identificador" => "aff0020" ] 4 => array:3 [ "entidad" => "Hospital General de Granollers, Granollers, Barcelona, Spain" "etiqueta" => "e" "identificador" => "aff0025" ] 5 => array:3 [ "entidad" => "Hospital Universitari Sagrat Cor, Barcelona, Spain" "etiqueta" => "f" "identificador" => "aff0030" ] 6 => array:3 [ "entidad" => "Hospital de Sant Joan Despí Moisès Broggi, Sant Joan Despí, Barcelona, Spain" "etiqueta" => "g" "identificador" => "aff0035" ] 7 => array:3 [ "entidad" => "Hospital de Manacor, Manacor, Islas Baleares, Spain" "etiqueta" => "h" "identificador" => "aff0040" ] 8 => array:3 [ "entidad" => "Consorci Sanitari del Garraf, Sant Pere de Ribes, Barcelona, Spain" "etiqueta" => "i" "identificador" => "aff0045" ] 9 => array:3 [ "entidad" => "Consorci Sanitari de Terrassa, Terrassa, Barcelona, Spain" "etiqueta" => "j" "identificador" => "aff0050" ] 10 => array:3 [ "entidad" => "Hospital Germans Trias i Pujol, Badalona, Barcelona, Spain" "etiqueta" => "k" "identificador" => "aff0055" ] 11 => array:3 [ "entidad" => "Hospital Universitari Vall d¿Hebron, Barcelona, Spain" "etiqueta" => "l" "identificador" => "aff0060" ] 12 => array:3 [ "entidad" => "Consorci Sanitari de l’Anoia, Igualada, Barcelona, Spain" "etiqueta" => "m" "identificador" => "aff0065" ] 13 => array:3 [ "entidad" => "Hospital Mútua de Terrassa, Terrassa, Barcelona, Spain" "etiqueta" => "n" "identificador" => "aff0070" ] 14 => array:3 [ "entidad" => "Hospital Dos de Maig, Barcelona, Spain" "etiqueta" => "o" "identificador" => "aff0075" ] 15 => array:3 [ "entidad" => "Hospital Clínic de Barcelona, Barcelona, Spain" "etiqueta" => "p" "identificador" => "aff0080" ] 16 => array:3 [ "entidad" => "Hospital Sant Llàtzer, Terrassa, Barcelona, Spain" "etiqueta" => "q" "identificador" => "aff0085" ] 17 => array:3 [ "entidad" => "Hospital Sant Joan de Déu, Esplugues de Llobregat, Barcelona, Spain" "etiqueta" => "r" "identificador" => "aff0090" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Algoritmo de tratamiento con omalizumab en urticaria crónica espontánea" ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1819 "Ancho" => 3083 "Tamanyo" => 264119 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Algorithm for the treatment of chronic spontaneous urticaria with omalizumab. Abbreviations: UAS7, weekly Urticaria Activity Score; UCT, Urticaria Control Test.</p>" ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">An algorithm is needed to guide the treatment of chronic spontaneous urticaria (CSU) with omalizumab because the pivotal trials are generally 3 to 6 months in length and patients with CSU often require more prolonged treatment.<a class="elsevierStyleCrossRefs" href="#bib0105"><span class="elsevierStyleSup">1–3</span></a> Furthermore, since CSU can go into spontaneous remission, there is also a need to establish guidelines on how and when treatment should be discontinued, another question not answered by the data from clinical trials. Thirdly, our algorithm introduces, for the first time, a dose increase to 450<span class="elsevierStyleHsp" style=""></span>mg or 600 mg/4 wks for patients in whom the standard regimen does not achieve adequate disease control, which is defined as a weekly Urticaria Activity Score (UAS7) of 6 or less.<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">4</span></a> The algorithm proposed by this working group is shown in <a class="elsevierStyleCrossRef" href="#fig0005">Figure 1</a>.</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Materials and Methods</span><p id="par0010" class="elsevierStylePara elsevierViewall">This consensus document has been developed on the basis of sharing, approval, revision, and comparison of the recent literature. The authors of this document are all members of a working group called the Xarxa d’Urticària Catalana i Balear (XUrCB), whose members are based in Catalunya and the Balearic Islands. The group was set up 2 years ago to share experiences and reach a consensus on the management of patients with CSU.</p><p id="par0015" class="elsevierStylePara elsevierViewall">The working group met every 3 months. An initial algorithm was proposed based on data from pivotal trials, reports in scientific journals on the use of omalizumab in clinical practice, and the experience of the group members themselves who, between them, have treated over 300 patients with omalizumab. The Medline, Embase, and Cochrane databases were searched using the OVID platform. After a series of meetings and following a study, accepted for publication,<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">4</span></a> on the effectiveness of increasing the dose of omalizumab to 450 or 600<span class="elsevierStyleHsp" style=""></span>mg in certain cases, the group agreed on the treatment algorithm for omalizumab shown in <a class="elsevierStyleCrossRef" href="#fig0005">Figure 1</a>.</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Candidates for Treatment With Omalizumab</span><p id="par0020" class="elsevierStylePara elsevierViewall">Since CSU is a condition that can persist for months or years, patients require safe and effective long-term treatment. The EAACI/GA<span class="elsevierStyleSup">2</span>LEN/EDF/WAO guidelines recommend second generation anti-H1 antihistamines at licensed doses as a first-line treatment for CSU, and increasing the dose of the selected antihistamine by up to 4 times as a second-line option.<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">5</span></a> However, a substantial proportion of patients continue to experience symptoms even at the higher antihistamine doses.<a class="elsevierStyleCrossRefs" href="#bib0130"><span class="elsevierStyleSup">6,7</span></a> It is these patients with treatment-refractory CSU who are candidates for treatment with omalizumab.</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Tools for Assessing Response to Therapy</span><p id="par0025" class="elsevierStylePara elsevierViewall">Using the UAS7, the instrument recommended for assessing disease activity in CSU,<a class="elsevierStyleCrossRefs" href="#bib0125"><span class="elsevierStyleSup">5,8</span></a> patients record the wheal count and itch intensity every day for the last week. The resulting score (range 0-42) can be used to define 5 disease activity categories.<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">9</span></a> These 5 categories are as follows: urticaria free (UAS7 0), well-controlled urticaria (UAS7 1-6), mild-activity urticaria (UAS7 7-15), moderate-activity urticaria (UAS7 16-27), and severe-activity urticaria (UAS7 ≥ 28) (<a class="elsevierStyleCrossRef" href="#fig0010">Fig. 2</a>). This scale was validated for the assessment of disease activity in urticaria in 2008.<a class="elsevierStyleCrossRef" href="#bib0150"><span class="elsevierStyleSup">10</span></a></p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0030" class="elsevierStylePara elsevierViewall">Although the UAS7 is very useful, it has two limitations: first, it does not assess the activity of inducible urticaria, a condition often associated with CSU; and second, it does not consider angioedema, which affects many patients with CSU and has a negative impact on their quality of life. For this reason, we are proposing using the Urticaria Control Test (UCT) as part of the follow-up protocol for these patients, especially when considering dose adjustments. The UCT is a simple questionnaire that can be completed at the time of the consultation and a transcultural adaptation to Spanish is available (<a class="elsevierStyleCrossRef" href="#fig0015">Fig. 3</a>). Patients answer questions about the intensity of their symptoms (itch, hives, and swelling), the impact of the disease on their quality of life, and how often the disease was controlled by the treatment. Finally they provide an overall assessment of how well their urticaria was controlled in the preceding 4 weeks.<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">11,12</span></a> The UCT score ranges from 0 and 16, with 16 corresponding to complete control of the disease. A UCT score greater than 12 is considered to be indicative of good disease control.</p><elsevierMultimedia ident="fig0015"></elsevierMultimedia></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Starting Dose</span><p id="par0035" class="elsevierStylePara elsevierViewall">The starting dose for omalizumab in patients with CSU is 300<span class="elsevierStyleHsp" style=""></span>mg administered every 4 weeks because this was the dose that achieved the outcomes in Phase III trials that best complied with the efficacy objectives and provided the best control of angioedema. However, in a study of data from real-life clinical practice, a considerable number of patients benefited from treatment with lower doses (150<span class="elsevierStyleHsp" style=""></span>mg/4 wks) and 86% of patients achieved a greater than 90% reduction in UAS7 4 weeks after the first injection.<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">13</span></a> A possible strategy in patients who do not have angioedema or inducible urticaria could be to start with a dose of 150<span class="elsevierStyleHsp" style=""></span>mg and assess response at week 4; if the UAS7 is 6 or less, the patient would continue on the lower dose. This strategy would improve cost-effectiveness. However, since the aforementioned study was based on a small sample size and had no control group, the strategy should only be considered in individual patients or in settings where the pressure on health expenditure is greater.<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">13</span></a></p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Dose Adjustment</span><p id="par0040" class="elsevierStylePara elsevierViewall">We propose that decisions on dose adjustment should be made taking into account the patient's UAS7 and/or UCT scores. A UAS7 score of 6 or less is considered to indicate well-controlled urticaria. Achieving a UAS7 of 6 or less was one of the end points of the ASTERIA and GLACIAL trials, and a recent study has shown a very good correlation between a UAS7 of 6 or less and good scores on the Dermatology Life Quality Index (DLQI), the Chronic Urticaria Quality of Life Questionnaire (CU-Q2Ol), and patient-reported interference with daily activities.<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">9</span></a> Moreover, the current EAACI/GA<span class="elsevierStyleSup">2</span>LEN/EDF/WAO guideline has set complete control of symptoms as a therapeutic objective, which is why we believe that a UAS7 of 6 or less is a suitable threshold for increasing or decreasing the dose of omalizumab in these patients.<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">5</span></a></p><p id="par0045" class="elsevierStylePara elsevierViewall">Achieving a UAS7 under 7 is not easy, and owing to the high cost of omalizumab, the dose may be maintained even when this objective is not achieved provided an improvement over the baseline situation is observed and the UCT score is over 12.</p><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Importance of Using the Weekly UAS7 Throughout the Entire Month</span><p id="par0055" class="elsevierStylePara elsevierViewall">The ideal assessment of UAS7 in patients treated with omalizumab involves recording this data every week after the drug is first administered. This is the only way to obtain a clear picture of the response to therapy throughout the month. Therapeutic response varies from patient to patient and over time during the treatment period. A patient who has a UAS7 score of less than 6 during the first 3 weeks of their treatment may lose this response during the 4th week. This response pattern should not be equated with the response of a patient who presents a UAS7 score greater than 6 during the entire interval between doses and in whom treatment failed to achieve disease control.</p></span><span id="sec0075" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Definition of Good Responder, Partial Responder and Nonresponder</span><p id="par0065" class="elsevierStylePara elsevierViewall">As mentioned above, a good responder is defined as a patient with a UAS7 score of 6 or less. A partial responder is a patient who achieves a decrease in baseline UAS7 assessed before treatment and whose score ranges from 7 to 15 (mild-activity urticaria). Finally, a nonresponder is a patient in whom treatment does not decrease baseline UAS7 to a value of under 16.</p></span></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Interval Between Assessments</span><p id="par0070" class="elsevierStylePara elsevierViewall">We propose assessing response to treatment with omalizumab every 3 months. This recommendation is based on the results of Phase III clinical trials of omalizumab, in which the percentage of patients who achieved well-controlled urticaria (UAS7 ≤ 6) increased from 41% at week 4 to 57% at week 12. Analysing data from the two pivotal studies, which prolonged treatment until week 24, we observe that this difference declined between weeks 12 and 24 (from 52% to 59%). Moreover, assessing patients every 3 months allows us to compare the results in clinical practice with the primary end points used in clinical trials, since these were also assessed at 12 weeks.</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Response Time</span><p id="par0075" class="elsevierStylePara elsevierViewall">The authors of an article on clinical practice reported that 57% of patients with CSU treated with omalizumab achieved a reduction in UAS7 greater than 90% of the baseline UAS7 during the first week of treatment.<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">13</span></a> In the same study, 86% of patients achieved this response at week 4. In our own experience of 286 patients, we observed that, of the patients who achieved a UAS7 of 6 or less with the licensed dose, 83% did so in the first 12 weeks of treatment.<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">4</span></a></p><p id="par0080" class="elsevierStylePara elsevierViewall">Dose increase at 3 months may be postponed in patients with mild-activity disease (a UAS7 of 7-15) provided the UCT is under 12 since it has been observed that some patients are late responders and take 12 to 16 weeks to achieve well-controlled disease at a dose of 300<span class="elsevierStyleHsp" style=""></span>mg/4 wks.<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">14</span></a></p><p id="par0085" class="elsevierStylePara elsevierViewall">In our study, 17% of patients took over 3 months to respond to a dose of 300 mg/4 wks. For this reason, in a patient who has not achieved a UAS7 of less than 7 by week 12, the dose increase can be postponed for a further 3 months provided the patient's symptoms are not intolerable.</p></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Increased Dose of Omalizumab</span><p id="par0090" class="elsevierStylePara elsevierViewall">The pivotal trials provide no data on the usefulness of increasing the dose of omalizumab, but the strategy has been reported in studies of clinical practice.<a class="elsevierStyleCrossRefs" href="#bib0175"><span class="elsevierStyleSup">15–17</span></a> In a study of 45 patients, good disease control was observed in all those who received 300 mg/2 wks.<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">15</span></a></p><p id="par0095" class="elsevierStylePara elsevierViewall">In our study of 286 patients, the dose was increased to 450 or 600<span class="elsevierStyleHsp" style=""></span>mg/4 wks in 79 patients who failed to respond to the initial dose of 300<span class="elsevierStyleHsp" style=""></span>mg/4 wks (UAS7<span class="elsevierStyleHsp" style=""></span>> 6).<a class="elsevierStyleCrossRef" href="#bib0120"><span class="elsevierStyleSup">4</span></a> With the increased dose, 75% of these patients achieved a UAS7 of 6 or less. Thus, we consider that this dose increase strategy is useful in a significant number of patients.</p><p id="par0100" class="elsevierStylePara elsevierViewall">As indicated above, some patients achieve good disease control in the 2 or 3 weeks following the first omalizumab injection, followed by a deterioration in the 4th week. In such cases, it may be reasonable to shorten the interval between injections. To monitor this pattern, it is very useful if the patient not only completes the UAS7 records the week prior to the visit but rather daily over the whole period between visits.</p></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Withdrawal of Treatment Due to Complete Response</span><p id="par0105" class="elsevierStylePara elsevierViewall">In patients with a UAS7 of 0 we propose a dose reduction to 150 mg/4 wks and a further assessment in 3 months. At that time, if the complete response is maintained, we recommend increasing the injection interval, initially to 6 weeks and then 8 weeks. If the patient's UAS7 is still 0 after 2 doses of 150 mg administered at 8 week intervals, we propose withdrawal of treatment with follow-up for at least 6 months to monitor possible relapse. This interval and the dose used before cessation of treatment coincide with the recommendations of a Danish algorithm in which in the case of relapse, treatment with omalizumab was restarted at 150 mg/8 wks.<a class="elsevierStyleCrossRef" href="#bib0190"><span class="elsevierStyleSup">18</span></a></p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Retreatment in the Case of Relapse</span><p id="par0110" class="elsevierStylePara elsevierViewall">In the case of relapse, the strategy most used in the literature is restarting treatment at the last effective dose and dosing interval. Analysis of data from 25 patients with CSU treated with omalizumab who experienced relapse of disease after withdrawal of treatment following a complete response showed that 100% of the patients responded rapidly to retreatment (after just 1 dose).<a class="elsevierStyleCrossRef" href="#bib0185"><span class="elsevierStyleSup">17</span></a> Retreatment in that series was not associated with a higher rate of adverse events and the authors of the study concluded that retreatment with omalizumab is safe and effective in patients who experience relapse. In most cases, renewed symptoms occurred 4 to 8 weeks after the last omalizumab injection, but in 2 patients they did not occur until later (4 and 7 months).<a class="elsevierStyleCrossRefs" href="#bib0185"><span class="elsevierStyleSup">17,18</span></a></p><p id="par0115" class="elsevierStylePara elsevierViewall">Data from a Spanish study of 110 patients with CSU treated with omalizumab provides evidence on the percentage of relapse following withdrawal of treatment.<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">19</span></a> Treatment was withdrawn in 41 of the 110 patients following a complete response. Of these, 47% required retreatment due to relapse.</p><p id="par0120" class="elsevierStylePara elsevierViewall">An analysis of data from Phase III trials of omalizumab undertaken to identify predictors of relapse after withdrawal of treatment showed, using the LASSO statistical method, that of the multiple variables analyzed, risk of relapse was related to baseline UAS7 score and the speed of response in the first 4 weeks of treatment.<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">20</span></a> A rapid response and a moderate UAS7 were the factors that predicted no relapse or a late relapse. By contrast, in cases characterized by a slow response to omalizumab and a high UAS7, relapse was prompt.<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">20</span></a></p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Conclusions</span><p id="par0125" class="elsevierStylePara elsevierViewall">We consider that the proposed algorithm is useful because the follow-up period was short in the clinical trials that studied the treatment of CSU with omalizumab. We propose quarterly assessment of patients to consider dose adjustment, with decisions based principally on the UAS7 score but also taking into consideration UCT and weekly UAS7 for at least a month. We feel that this approach provides a more complete assessment of the effectiveness of the treatment. In the case of relapse, we propose retreatment at the last effective dose and dosing interval. Finally, it is important to emphasize that a considerable number of patients who do not respond to the licensed dose of omalizumab may benefit from a higher dose (450 or 600 mg/4 wks).</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0135">Conflicts of Interest</span><p id="par0130" class="elsevierStylePara elsevierViewall">Novartis provided support for the working group meetings and technical support, but none of their employees participated in the compilation of evidence, the group discussions, or the task of drafting the document.</p><p id="par0135" class="elsevierStylePara elsevierViewall">Isabel Bielsa-Marsol, Montserrat Bonfill-Ortí, Sara Gómez, Carola Baliu-Piqué, Nuria Lamas-Domenech, Alba Álvarez, María Villar-Buil, Marta Vilavella, Jose Ignasio Torné-Gutiérrez, Gloria Aparicio, and Xavier García-Navarro report no conflicts of interest.</p><p id="par0140" class="elsevierStylePara elsevierViewall">Jorge Spertino, Vicente Expósito-Serrano, Ignasi Figueras-Nart, José Manuel Mascaró, Gemma Mele i Ninot, Eduardo Rozas-Muñoz, Laia Curto-Barredo, Joan Garcías-Ladaria, Esther Serra-Baldrich, and Antonio Guilabert have received honoraria from Novartis for training activities relating to chronic urticaria.</p><p id="par0145" class="elsevierStylePara elsevierViewall">José Manuel Mascaró has received speaker fees from the following pharmaceutical companies: Ferrer, MSD, ISDIN, Novartis, and Leo Pharma.</p><p id="par0150" class="elsevierStylePara elsevierViewall">Ana Giménez Arnau has participated in research projects and has received fees for consultancy and training activities from Uriach Pharma, Genentech, Novartis, FAES, GSK, Menarini, Leo-Pharma, GSK, MSD, and Almirall.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:19 [ 0 => array:3 [ "identificador" => "xres1102718" "titulo" => "Abstract" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Background and objective" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and methods" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] ] ] 1 => array:2 [ "identificador" => "xpalclavsec1043207" "titulo" => "Keywords" ] 2 => array:3 [ "identificador" => "xres1102717" "titulo" => "Resumen" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0025" "titulo" => "Antecedentes y objetivo" ] 1 => array:2 [ "identificador" => "abst0030" "titulo" => "Materiales y métodos" ] 2 => array:2 [ "identificador" => "abst0035" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0040" "titulo" => "Conclusiones" ] ] ] 3 => array:2 [ "identificador" => "xpalclavsec1043206" "titulo" => "Palabras clave" ] 4 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction" ] 5 => array:2 [ "identificador" => "sec0010" "titulo" => "Materials and Methods" ] 6 => array:2 [ "identificador" => "sec0015" "titulo" => "Candidates for Treatment With Omalizumab" ] 7 => array:2 [ "identificador" => "sec0020" "titulo" => "Tools for Assessing Response to Therapy" ] 8 => array:2 [ "identificador" => "sec0025" "titulo" => "Starting Dose" ] 9 => array:3 [ "identificador" => "sec0030" "titulo" => "Dose Adjustment" "secciones" => array:2 [ 0 => array:2 [ "identificador" => "sec0070" "titulo" => "Importance of Using the Weekly UAS7 Throughout the Entire Month" ] 1 => array:2 [ "identificador" => "sec0075" "titulo" => "Definition of Good Responder, Partial Responder and Nonresponder" ] ] ] 10 => array:2 [ "identificador" => "sec0035" "titulo" => "Interval Between Assessments" ] 11 => array:2 [ "identificador" => "sec0040" "titulo" => "Response Time" ] 12 => array:2 [ "identificador" => "sec0045" "titulo" => "Increased Dose of Omalizumab" ] 13 => array:2 [ "identificador" => "sec0050" "titulo" => "Withdrawal of Treatment Due to Complete Response" ] 14 => array:2 [ "identificador" => "sec0055" "titulo" => "Retreatment in the Case of Relapse" ] 15 => array:2 [ "identificador" => "sec0060" "titulo" => "Conclusions" ] 16 => array:2 [ "identificador" => "sec0065" "titulo" => "Conflicts of Interest" ] 17 => array:2 [ "identificador" => "xack374508" "titulo" => "Acknowledgments" ] 18 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2018-03-18" "fechaAceptado" => "2018-07-01" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec1043207" "palabras" => array:3 [ 0 => "Omalizumab" 1 => "Chronic spontaneous urticaria" 2 => "Treatment algorithm" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec1043206" "palabras" => array:3 [ 0 => "Omalizumab" 1 => "Urticaria crónica espontánea" 2 => "Algoritmo de tratamiento" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:3 [ "titulo" => "Abstract" "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Background and objective</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Pivotal trials with omalizumab for treatment of chronic spontaneous urticaria (CSU) are generally run over 12 to 24<span class="elsevierStyleHsp" style=""></span>weeks. However, in clinical practice, many patients need longer treatment. In this article, we present an algorithm for treatment with omalizumab.</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Material and methods</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">The consensus document we present is the result of a series of meetings by the CSU working group of “Xarxa d’Urticària Catalana i Balear” (XUrCB) at which data from the recent literature were presented, discussed, compared, and agreed upon.</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Treatment with omalizumab should be initiated at the authorized dose, and is adjusted at 3-monthly intervals according to the Urticaria Activity Score Over 7<span class="elsevierStyleHsp" style=""></span>days, the Urticaria Control Test, or both.</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusions</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">The algorithm proposed is designed to provide guidance on how to adjust omalizumab doses, how and when to discontinue the drug, and how to reintroduce it in cases of relapse.</p></span>" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Background and objective" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and methods" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] ] ] "es" => array:3 [ "titulo" => "Resumen" "resumen" => "<span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Antecedentes y objetivo</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Los ensayos pivotales de omalizumab en urticaria crónica espontánea (UCE) tienen un periodo de tratamiento de entre 12 y 24<span class="elsevierStyleHsp" style=""></span>semanas. Sin embargo, muchos pacientes en práctica clínica requieren periodos de tratamiento más prolongados. Por ello el objetivo es presentar un algoritmo de manejo del fármaco.</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Materiales y métodos</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">El documento de consenso que detallamos nace de la puesta en común, aceptación, revisión y confrontación de la literatura reciente del grupo de trabajo de UCE «Xarxa d’Urticària Catalana i Balear» (XUrCB).</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Resultados</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Se inicia el tratamiento a dosis autorizada y se ajusta la dosis en intervalos trimestrales en función del <span class="elsevierStyleItalic">Urticaria Activity Score</span> de los últimos 7<span class="elsevierStyleHsp" style=""></span>días (UAS7) y/o el <span class="elsevierStyleItalic">Urticarial Control Test</span> (UCT).</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusiones</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">El algoritmo propuesto pretende servir de guía respecto a cómo ajustar dosis, cómo y cuándo parar el fármaco y el modo de reintroducirlo en casos de recaída.</p></span>" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0025" "titulo" => "Antecedentes y objetivo" ] 1 => array:2 [ "identificador" => "abst0030" "titulo" => "Materiales y métodos" ] 2 => array:2 [ "identificador" => "abst0035" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0040" "titulo" => "Conclusiones" ] ] ] ] "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as: Spertino J, Curto Barredo L, Rozas Muñoz E, Figueras Nart I, Serra Baldrich E, Bonfill-Ortí M, et al. Algoritmo de tratamiento con omalizumab en urticaria crónica espontánea. Actas Dermosifiliogr. 2018;109:771–776.</p>" ] ] "multimedia" => array:3 [ 0 => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 1819 "Ancho" => 3083 "Tamanyo" => 264119 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Algorithm for the treatment of chronic spontaneous urticaria with omalizumab. Abbreviations: UAS7, weekly Urticaria Activity Score; UCT, Urticaria Control Test.</p>" ] ] 1 => array:7 [ "identificador" => "fig0010" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 449 "Ancho" => 1500 "Tamanyo" => 43390 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Categories of chronic spontaneous urticaria (CSU) disease activity.</p> <p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Source: Adapted from Stull et al.<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">9</span></a></p>" ] ] 2 => array:7 [ "identificador" => "fig0015" "etiqueta" => "Figure 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr3.jpeg" "Alto" => 2066 "Ancho" => 2500 "Tamanyo" => 308415 ] ] "descripcion" => array:1 [ "en" => "<p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">Urticaria Control Test.</p>" ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0015" "bibliografiaReferencia" => array:20 [ 0 => array:3 [ "identificador" => "bib0105" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Omalizumab for the treatment of chronic idiopathic or spontaneous urticaria" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => "M. 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| Year/Month | Html | Total | |
|---|---|---|---|
| 2024 November | 9 | 13 | 22 |
| 2024 October | 106 | 47 | 153 |
| 2024 September | 84 | 41 | 125 |
| 2024 August | 104 | 52 | 156 |
| 2024 July | 98 | 40 | 138 |
| 2024 June | 100 | 26 | 126 |
| 2024 May | 104 | 39 | 143 |
| 2024 April | 111 | 40 | 151 |
| 2024 March | 84 | 44 | 128 |
| 2024 February | 95 | 51 | 146 |
| 2024 January | 76 | 30 | 106 |
| 2023 December | 75 | 31 | 106 |
| 2023 November | 101 | 47 | 148 |
| 2023 October | 102 | 53 | 155 |
| 2023 September | 92 | 54 | 146 |
| 2023 August | 98 | 42 | 140 |
| 2023 July | 120 | 63 | 183 |
| 2023 June | 120 | 42 | 162 |
| 2023 May | 134 | 58 | 192 |
| 2023 April | 85 | 49 | 134 |
| 2023 March | 96 | 31 | 127 |
| 2023 February | 96 | 40 | 136 |
| 2023 January | 82 | 52 | 134 |
| 2022 December | 118 | 60 | 178 |
| 2022 November | 99 | 40 | 139 |
| 2022 October | 58 | 30 | 88 |
| 2022 September | 66 | 41 | 107 |
| 2022 August | 74 | 48 | 122 |
| 2022 July | 69 | 61 | 130 |
| 2022 June | 28 | 48 | 76 |
| 2022 May | 50 | 72 | 122 |
| 2022 April | 56 | 63 | 119 |
| 2022 March | 56 | 82 | 138 |
| 2022 February | 50 | 44 | 94 |
| 2022 January | 72 | 73 | 145 |
| 2021 December | 53 | 59 | 112 |
| 2021 November | 44 | 53 | 97 |
| 2021 October | 58 | 85 | 143 |
| 2021 September | 44 | 60 | 104 |
| 2021 August | 47 | 45 | 92 |
| 2021 July | 39 | 41 | 80 |
| 2021 June | 43 | 42 | 85 |
| 2021 May | 54 | 66 | 120 |
| 2021 April | 125 | 132 | 257 |
| 2021 March | 93 | 58 | 151 |
| 2021 February | 84 | 61 | 145 |
| 2021 January | 72 | 49 | 121 |
| 2020 December | 63 | 40 | 103 |
| 2020 November | 49 | 46 | 95 |
| 2020 October | 42 | 28 | 70 |
| 2020 September | 59 | 34 | 93 |
| 2020 August | 29 | 44 | 73 |
| 2020 July | 33 | 30 | 63 |
| 2020 June | 33 | 36 | 69 |
| 2020 May | 33 | 23 | 56 |
| 2020 April | 25 | 21 | 46 |
| 2020 March | 57 | 21 | 78 |
| 2020 February | 4 | 2 | 6 |
| 2019 August | 5 | 2 | 7 |
| 2019 May | 2 | 2 | 4 |
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