{"id":16561,"date":"2020-04-28T19:28:33","date_gmt":"2020-04-28T22:28:33","guid":{"rendered":"https:\/\/doctorhoogstra.com\/es\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/"},"modified":"2020-05-03T15:37:13","modified_gmt":"2020-05-03T18:37:13","slug":"key-evidence-from-clinical-trials-for-alitretinoin","status":"publish","type":"wiki","link":"https:\/\/doctorhoogstra.com\/en\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/","title":{"rendered":"Key evidence from clinical trials for alitretinoin"},"content":{"rendered":"<p><\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/doctorhoogstra.com\/en\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/#Alitretinoina-oral-para-mano-eczema\" >Alitretino\u00edna oral para mano eczema<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/doctorhoogstra.com\/en\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/#Estudio-1\" >Study 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/doctorhoogstra.com\/en\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/#Estudio-2\" >Study 2<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/doctorhoogstra.com\/en\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/#Alitretinoina-gel-01-para-Kaposi-sarcoma\" >Alitretino\u00edna gel 0.1% para Kaposi sarcoma<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/doctorhoogstra.com\/en\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/#Estudio-1-2\" >Study 1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/doctorhoogstra.com\/en\/wiki\/evidencia-clave-de-ensayos-clinicos-para-alitretinoina\/#Estudio-2-2\" >Study 2<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<section class=\"textBlock\">\n<h2><span class=\"ez-toc-section\" id=\"Alitretinoina-oral-para-mano-eczema\"><\/span>Alitretinoin oral for hand <span class=\"term\" data-term-id=\"491\">eczema<\/span><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Toctino\u00ae (oral alitretinoin) is marketed by Stiefel Laboratories (UK) and is approved for the treatment of hand eczema in the UK, Europe, Israel and Canada (February 2013).<\/p>\n<p>Safety and <span class=\"term\" data-term-id=\"914\">effectiveness<\/span> of oral alitretinoin in patients with severe disease <span class=\"term\" data-term-id=\"319\">chronic<\/span> refractory hand eczema <span class=\"term\" data-term-id=\"1330\">current<\/span> Corticosteroids have been established in two randomized, double-blind, <span class=\"term\" data-term-id=\"1103\">placebo<\/span>-controlled phase 3 studies.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Estudio-1\"><\/span>Study 1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The BACH (benefit of alitretinoin in chronic hand <span class=\"term\" data-term-id=\"53\">Dermatitis<\/span> Study) included 1032 patients with severe chronic hand eczema\/dermatitis who had no response or a transient response (initial improvement and worsening of disease despite continued treatment) to potent topical corticosteroids or who were intolerant to topical corticosteroids powerful.<\/p>\n<p>All <span class=\"term\" data-term-id=\"1062\">phenotypes<\/span> of hand eczema included: <span class=\"term\" data-term-id=\"610\">hyperkeratosis<\/span> (87%), pompholyx (27%), fingertip dermatitis (43%), and others (15%). Essentially all patients had skin signs. <span class=\"term\" data-term-id=\"148\">inflammation<\/span>, consisting of <span class=\"term\" data-term-id=\"90\">erythema<\/span> me <span class=\"term\" data-term-id=\"1028\">vesicles<\/span>.<\/p>\n<p>the <span class=\"term\" data-term-id=\"949\">primary<\/span> The endpoint in these studies was the proportion of patients achieving Physician Global Assessment (PGA) scores of clear or nearly clear hands at the end of therapy. The duration of treatment was 12 to 24 weeks.<\/p>\n<p>Alitretinoin treatment led to a significantly higher proportion of patients achieving clear\/near clear hands, compared to placebo. The answer was dose<span class=\"term\" data-term-id=\"1179\">dependent<\/span>. Response rates for different CHE subtypes were also dose-dependent, except for pompholyx patients.<\/p>\n<table class=\"borders\">\n<tbody>\n<caption>Primary efficacy parameters<\/caption>\n<\/tbody>\n<tbody>\n<tr>\n<th colspan=\"3\">Alitretinoin<\/th>\n<\/tr>\n<tr>\n<td>main variable<\/td>\n<td>10mg<\/td>\n<td>30mg<\/td>\n<td>Placebo<\/td>\n<\/tr>\n<tr>\n<td>Intention to Treat (ITT) Population<\/td>\n<td>N = 418<\/td>\n<td>N = 409<\/td>\n<td>N = 205<\/td>\n<\/tr>\n<tr>\n<td>Physician Global Assessment (PGA):<\/td>\n<td> <\/td>\n<td> <\/td>\n<td> <\/td>\n<\/tr>\n<tr>\n<td>Overall response rate<\/td>\n<td>115 (27,5%)<\/td>\n<td>195 (47,7%)<\/td>\n<td>34 (16,6%)<\/td>\n<\/tr>\n<tr>\n<td>Sure<\/td>\n<td>39 (9,3%)<\/td>\n<td>90 (22,0%)<\/td>\n<td>6 (2,9%)<\/td>\n<\/tr>\n<tr>\n<td>almost clear<\/td>\n<td>76 (18,2%)<\/td>\n<td>105 (25,7%)<\/td>\n<td>28 (13,7%)<\/td>\n<\/tr>\n<tr>\n<td>Comparison with placebo<\/td>\n<td>P = 0.004<\/td>\n<td>P = &lt;0.001<\/td>\n<td>N\/A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"borders\">\n<tbody>\n<caption>Response rate by CHE subtype<\/caption>\n<\/tbody>\n<tbody>\n<tr>\n<th>CHE subtype<\/th>\n<th>Hyperkeratosis<\/th>\n<th>Hyperkeratosis \/ Pompholyx<\/th>\n<th>Pompholyx<\/th>\n<\/tr>\n<tr>\n<td>ITT population%<\/td>\n<td>64%<\/td>\n<td>22%<\/td>\n<td>5%<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">Response rate (PGA)<\/td>\n<td>30mg: 54%<\/td>\n<td>30mg: 33%<\/td>\n<td>30mg: 33%<\/td>\n<\/tr>\n<tr>\n<td>10mg: 30%<\/td>\n<td>10mg: 23%<\/td>\n<td>10mg: 22%<\/td>\n<\/tr>\n<tr>\n<td>Placebo: 12%<\/td>\n<td>Placebo: 12%<\/td>\n<td>Placebo: 30%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Patients with clear\/almost clear hands at the end of treatment were followed up for a further 24 weeks. During that period, no active drug treatment for CHE was allowed. <span class=\"term\" data-term-id=\"1500\">Relapse<\/span> was defined as the 75% of the initial total <span class=\"term\" data-term-id=\"164\">injury<\/span> <span class=\"term\" data-term-id=\"902\">symptom<\/span> Punctuation.<\/p>\n<p>In this analysis, the majority of responders who received 10 mg and 30 mg of alitretinoin did not relapse at the end of the follow-up period.<\/p>\n<p>Relapse rates * at the end of follow-up<\/p>\n<table class=\"borders\">\n<tbody>\n<tr>\n<th colspan=\"2\">Alitretinoin<\/th>\n<th>Placebo<\/th>\n<\/tr>\n<tr>\n<td rowspan=\"2\"> <\/td>\n<td>10mg<\/td>\n<td>30mg<\/td>\n<td> <\/td>\n<\/tr>\n<tr>\n<td>N = 418<\/td>\n<td>N = 409<\/td>\n<td>N = 205<\/td>\n<\/tr>\n<tr>\n<td>responders<\/td>\n<td>115 (100%)<\/td>\n<td>195 (100%)<\/td>\n<td>34 (100%)<\/td>\n<\/tr>\n<tr>\n<td>no relapse<\/td>\n<td>81 (70,4%)<\/td>\n<td>122 (62,6%)<\/td>\n<td>19 (55,9%)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>* Corresponds to a calculation of the last observation carried forward (LOCF)<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Estudio-2\"><\/span>Study 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A follow-up study (the second phase 3 study) investigated the efficacy and safety of a second course of treatment in both patients who previously responded to treatment and then relapsed (Cohort A) and in patients who did not respond to therapy (Cohort A). B). Cohort A patients were randomized to the same dose of alitretinoin they received during initial treatment or to placebo in a 2:1 ratio.<\/p>\n<p>The 80% of the relapsing patients in Cohort A, who received repeated treatment with 30 mg alitretinoin, achieved clear\/almost clear hands vs. the 8% in the placebo group (p &lt; 0.001).<\/p>\n<p>The 48% of Cohort A relapsers who withdrew on alitretinoin 10 mg achieved clear\/almost clear hands vs. 10% in the placebo group (p = 0.1).<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Alitretinoina-gel-01-para-Kaposi-sarcoma\"><\/span>Alitretinoin <span class=\"term\" data-term-id=\"1123\">gel<\/span> 0.1% for Kaposi <span class=\"term\" data-term-id=\"1665\">sarcoma<\/span><br \/>\n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The US FDA-approved alitretinoin gel (Panretin\u00ae; Ligand Pharmaceuticals USA) for the treatment of <span class=\"term\" data-term-id=\"47\">cutaneous<\/span> lesions in Kaposi&#039;s sarcoma (KS) in 1999. Since then, the drug has been approved in Europe and Canada.<\/p>\n<p>Two multicenter, prospective, randomized, <span class=\"term\" data-term-id=\"1750\">double-blind<\/span>, vehicle-controlled studies evaluated the efficacy of alitretinoin gel in patients with AIDS-related KS skin lesions.<\/p>\n<p>In both studies, the primary efficacy endpoint was cutaneous KS <span class=\"term\" data-term-id=\"289\">tumor<\/span> response rate after 12 weeks of study drug treatment.<\/p>\n<p>KS tumor response rate was assessed by evaluating 3 to 8 KS index lesions according to modified AIDS Clinical Trials Group (ACTG) response criteria applied to topical therapy (i.e., evaluation of reductions in height and area of index lesions only; <span class=\"term\" data-term-id=\"1759\">progressive<\/span> disease was scored only in treated index lesions and not in non-index lesions and new lesions).<\/p>\n<p>The FDA reviewed photographs of lesions in patients considered responders based on modified ACTG criteria for a cosmetically beneficial response, defined as at least 50% improvement in appearance compared to <span class=\"term\" data-term-id=\"1747\">base<\/span>, in at least 50% of the index lesions and maintained for at least 3 weeks.<\/p>\n<p>A global evaluation by the doctors was also performed. It considered all of the patient&#039;s treated lesions (index and other) compared to baseline. In this evaluation, patients with at least 50% improvement in KS lesions were considered responders.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Estudio-1-2\"><\/span>Study 1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A total of 268 patients were admitted from centers in the US and Canada.<\/p>\n<p>Patients were treated topically three to four times daily with alitretinoin gel or a corresponding vehicle gel for a minimum of 12 weeks.<\/p>\n<p>Responses to alitretinoin gel were observed in both treatment-na\u00efve patients and patients with <span class=\"term\" data-term-id=\"380\">systemic<\/span> and\/or topical treatment of KS.<\/p>\n<table class=\"borders\">\n<tbody>\n<caption>Primary efficacy parameters \u2013 study 1<\/caption>\n<\/tbody>\n<tbody>\n<tr>\n<th>Parameter<\/th>\n<th>Alitretinoin gel (n = 134)<\/th>\n<th>Vehicle gel (n = 134)<\/th>\n<\/tr>\n<tr>\n<td>Modified ACTG response (index lesions)<\/td>\n<td>34% (partial response)<br \/> 1% (complete response)<\/td>\n<td>16% (partial response)<br \/> p = 0.0012<\/td>\n<\/tr>\n<tr>\n<td>Physicians&#039; global assessment (all lesions treated)<\/td>\n<td>19% (partial response)<\/td>\n<td>4% (partial response)<br \/> P = 0.00014<\/td>\n<\/tr>\n<tr>\n<td>Beneficial response photographs (index lesions only)<\/td>\n<td>15%<\/td>\n<td>4%<br \/> p = 0.0026<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Estudio-2-2\"><\/span>Study 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Study 2 was an international study with a planned enrollment of 270 patients.<\/p>\n<p>The study was stopped early due to positive interim results in the initial data set of 82 patients.<\/p>\n<p>Patients were treated topically twice daily with alitretinoin gel or a corresponding vehicle for 12 weeks.<\/p>\n<p>Responses to alitretinoin gel were observed in both treatment-na\u00efve patients and patients with prior systemic and\/or topical treatment with KS.<\/p>\n<table class=\"borders\">\n<tbody>\n<caption>Primary efficacy parameters \u2013 study 2<\/caption>\n<\/tbody>\n<tbody>\n<tr>\n<th>Parameter<\/th>\n<th>Alitretinoin gel (n = 36)<\/th>\n<th>Vehicle gel (n = 46)<\/th>\n<\/tr>\n<tr>\n<td>Modified ACTG response (index lesions)<\/td>\n<td>36% (partial response)<\/td>\n<td>7% (partial response)<\/td>\n<\/tr>\n<tr>\n<td>Physicians&#039; global assessment (all lesions treated)<\/td>\n<td>47% (partial response)<\/td>\n<td>11% (partial response)<\/td>\n<\/tr>\n<tr>\n<td>Beneficial response photographs (index lesions only)<\/td>\n<td>19%<\/td>\n<td>2%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>In both studies, responses occurred in patients with a wide range of baseline CD4+ <span class=\"term\" data-term-id=\"420\">lymphocyte<\/span> counts, including patients with CD4+ lymphocyte counts less than 50 cells\/mm3. Almost all patients received <span class=\"term\" data-term-id=\"912\">concomitant<\/span> Combination antiretroviral therapy.<\/p>\n<section class=\"textBlock\">\n<div class=\"grey-box\"><em><span style=\"font-size: 0.9em\">New Zealand approved data sheets are the official source of information for these prescription drugs, including approved uses and risk information. See the New Zealand individual data sheet on the Medsafe website.<\/span><\/em><\/div>\n<\/section>\n<div class=\"clearfix\"><\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Alitretino\u00edna oral para mano eczema Toctino\u00ae (alitretino\u00edna oral) es comercializado por los laboratorios Stiefel (Reino Unido) y est\u00e1 aprobado para el tratamiento del eccema de manos en el Reino Unido,&#8230;<\/p>","protected":false},"author":8,"featured_media":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"categories":[204],"tags":[],"class_list":["post-16561","wiki","type-wiki","status-publish","format-standard","category-glosario-definiciones"],"_links":{"self":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki\/16561","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"author":[{"embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/comments?post=16561"}],"version-history":[{"count":0,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/wiki\/16561\/revisions"}],"wp:attachment":[{"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/media?parent=16561"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/categories?post=16561"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doctorhoogstra.com\/en\/wp-json\/wp\/v2\/tags?post=16561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}