{"id":5406,"date":"2026-11-11T09:58:11","date_gmt":"2026-11-11T09:58:11","guid":{"rendered":"https:\/\/campusbiotech.ch\/?p=5406"},"modified":"2026-11-11T10:00:05","modified_gmt":"2026-11-11T10:00:05","slug":"athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie","status":"publish","type":"post","link":"https:\/\/campusbiotech.ch\/fr\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\/","title":{"rendered":"ATHENA-II : une stimulation c\u00e9r\u00e9brale guid\u00e9e par la connectivit\u00e9 contre l&rsquo;apathie dans la schizophr\u00e9nie"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5407\" src=\"https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1.png\" alt=\"\" width=\"6240\" height=\"2018\" srcset=\"https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1.png 1312w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-300x97.png 300w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-1024x332.png 1024w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-768x249.png 768w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-441x143.png 441w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-882x286.png 882w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-480x155.png 480w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-960x311.png 960w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-800x259.png 800w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-640x207.png 640w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-1280x415.png 1280w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-708x229.png 708w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-744x241.png 744w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-1006x326.png 1006w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-756x245.png 756w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-347x112.png 347w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-694x225.png 694w, https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1-200x65.png 200w\" sizes=\"auto, (max-width: 6240px) 100vw, 6240px\" \/><\/p>\n<h6>L&rsquo;apathie et la perte de motivation comptent parmi les sympt\u00f4mes les plus invalidants de la schizophr\u00e9nie et restent, \u00e0 ce jour, sans traitement approuv\u00e9. L&rsquo;essai clinique ATHENA-II \u00e9value une stimulation c\u00e9r\u00e9brale non invasive dont la connectivit\u00e9 c\u00e9r\u00e9brale propre \u00e0 chaque patient d\u00e9termine la cible. Cette \u00e9tude randomis\u00e9e contr\u00f4l\u00e9e, financ\u00e9 \u00e0 hauteur de 4 millions de francs par la Horten Health Foundation dans le cadre de son programme comp\u00e9titif CONPRO (Consortium Projects for Clinical Translation), est men\u00e9 par Indrit B\u00e8gue MD PhD (UNIGE\/HUG), Mackenzie Weygandt Mathis PhD (EPFL), Paul Klauser (CHUV) et Stefan Kaiser (UNIGE\/HUG).<\/h6>\n<p><strong>Un sympt\u00f4me majeur, toujours sans traitement<br \/>\n<\/strong>Dans le monde, la schizophr\u00e9nie touche environ 24 millions de personnes. Si les hallucinations et les d\u00e9lires en sont les sympt\u00f4mes les plus connus, ce sont souvent les sympt\u00f4mes n\u00e9gatifs \u2013 apathie, perte d&rsquo;initiative, retrait social \u2013 qui p\u00e8sent le plus lourdement sur le quotidien, parfois plus durablement que les \u00e9pisodes psychotiques eux-m\u00eames. Les antipsychotiques actuels soulagent les sympt\u00f4mes psychotiques, mais restent peu efficaces sur la motivation : aucun traitement approuv\u00e9 ne cible aujourd&rsquo;hui sp\u00e9cifiquement l&rsquo;apathie.<\/p>\n<p><em>\u00ab L&rsquo;apathie et les d\u00e9ficits de motivation p\u00e8sent sur le pronostic \u00e0 long terme de la schizophr\u00e9nie plus que presque toute autre dimension, et il n&rsquo;existe encore aucun traitement approuv\u00e9 pour les traiter \u00bb<\/em>, Indrit B\u00e8gue, psychiatre-chercheuse en neurosciences, UNIGE\/HUG, investigatrice principale d&rsquo;ATHENA-II<\/p>\n<p><strong>D&rsquo;une d\u00e9couverte fondamentale \u00e0 l&rsquo;essai pivot<br \/>\n<\/strong>ATHENA-II s&rsquo;appuie sur plus d&rsquo;une d\u00e9cennie de recherche du laboratoire d&rsquo;Indrit B\u00e8gue sur les circuits c\u00e9r\u00e9braux, avec la neuroimagerie. Ses travaux ont r\u00e9v\u00e9l\u00e9 qu&rsquo;une voie de communication entre le cervelet \u2013 longtemps consid\u00e9r\u00e9 comme le simple centre de la coordination motrice \u2013 et l&rsquo;aire tegmentale ventrale, un maillon cl\u00e9 du circuit de la r\u00e9compense, est perturb\u00e9e dans la schizophr\u00e9nie et \u00e9troitement li\u00e9e \u00e0 la s\u00e9v\u00e9rit\u00e9 de l&rsquo;apathie.<\/p>\n<p>Cette d\u00e9couverte a donn\u00e9 naissance \u00e0 ATHENA, un essai clinique monocentrique en cours au Campus Biotech, qui \u00e9value la stimulation magn\u00e9tique transcr\u00e2nienne personnalis\u00e9e de ce circuit chez des patients atteints de schizophr\u00e9nie chronique. Soutenu par la Fondation Leenaards (Prix des sciences 2023) et la Fondation Priv\u00e9e des HUG, ATHENA doit livrer ses premiers r\u00e9sultats en 2028. ATHENA-II en est le prolongement : un essai pivot multicentrique, destin\u00e9 \u00e0 confirmer l&rsquo;efficacit\u00e9 du traitement avant une \u00e9ventuelle demande d&rsquo;autorisation aupr\u00e8s des autorit\u00e9s sanitaires.<\/p>\n<p><strong>Tester la stimulation sur mesure, \u00e0 grande \u00e9chelle<br \/>\n<\/strong>Sur quatre ans, ATHENA-II recrutera 140 patients aux HUG et au CHUV, couvrant tout le spectre de la schizophr\u00e9nie, des premiers \u00e9pisodes psychotiques aux formes chroniques. L&rsquo;essai est randomis\u00e9, contr\u00f4l\u00e9 contre stimulation simul\u00e9e en double aveugle, avec une phase ouverte qui permettra ensuite \u00e0 chaque participant d&rsquo;acc\u00e9der \u00e0 la stimulation active. Le protocole, acc\u00e9l\u00e9r\u00e9, pr\u00e9voit huit br\u00e8ves s\u00e9ances de stimulation par jour pendant cinq jours cons\u00e9cutifs \u2013 une approche d\u00e9j\u00e0 valid\u00e9e pour la d\u00e9pression r\u00e9sistante, ici adapt\u00e9e au circuit de la motivation dans la schizophr\u00e9nie.<\/p>\n<p>Indrit B\u00e8gue (UNIGE\/HUG) dirige le consortium et, en tant qu\u2019investigatrice principale, l\u2019essai clinique. Paul Klauser (CHUV) et Stefan Kaiser (UNIGE\/HUG), investigateurs de site \u00e0 Lausanne et \u00e0 Gen\u00e8ve respectivement, apportent leur expertise en recherche clinique et en techniques avanc\u00e9es de neuroimagerie. Mackenzie Weygandt Mathis (EPFL) dirige le volet intelligence artificielle.<\/p>\n<p><strong>Cibler le bon circuit, chez le bon patient<br \/>\n<\/strong>ATHENA-II teste la stimulation magn\u00e9tique transcr\u00e2nienne (TMS) du cervelet, une approche non invasive. Sa particularit\u00e9 : l&rsquo;\u00e9quipe ne standardise pas le site de stimulation, elle le d\u00e9termine individuellement \u00e0 partir de la connectivit\u00e9 propre \u00e0 chaque patient entre le cervelet et le m\u00e9senc\u00e9phale \u2013 une r\u00e9gion cl\u00e9 du circuit de la r\u00e9compense, identifi\u00e9 par les travaux ant\u00e9rieurs du laboratoire d&rsquo;Indrit B\u00e8gue.<\/p>\n<p>En parall\u00e8le, le volet intelligence artificielle s&rsquo;appuie sur xCEBRA-Time, un outil d\u00e9velopp\u00e9 par les \u00e9quipes de Mackenzie Weygandt Mathis et d&rsquo;Indrit B\u00e8gue et valid\u00e9 sur deux cohortes ind\u00e9pendantes, l&rsquo;une de psychose d\u00e9butante et l&rsquo;autre de schizophr\u00e9nie chronique\u00b9. \u00c0 partir de l&rsquo;IRM fonctionnelle de repos, il pr\u00e9dit \u00e0 l&rsquo;\u00e9chelle individuelle la s\u00e9v\u00e9rit\u00e9 des sympt\u00f4mes n\u00e9gatifs et la fonction cognitive. Il met aussi en \u00e9vidence une signature propre \u00e0 la maladie, qui implique le cortex pr\u00e9frontal, le cervelet post\u00e9rieur et des r\u00e9gions temporales et se distingue de celle observ\u00e9e en l&rsquo;absence de schizophr\u00e9nie. Dans ATHENA-II, cette approche servira \u00e0 d\u00e9velopper des mod\u00e8les pr\u00e9dictifs de la r\u00e9ponse au traitement.<\/p>\n<p>Le projet combine cette approche \u00e0 des techniques avanc\u00e9es de neuroimagerie, dont l&rsquo;IRM \u00e0 champ ultra-\u00e9lev\u00e9 7T, pour \u00e9tudier comment le traitement modifie l&rsquo;activit\u00e9 c\u00e9r\u00e9brale.<\/p>\n<p><strong>Un \u00e9cosyst\u00e8me unique pour rendre cette recherche possible<br \/>\n<\/strong>Les 4 millions de francs obtenus \u00e0 l&rsquo;issue de l&rsquo;appel comp\u00e9titif CONPRO de la Horten Health Foundation comptent parmi les plus importants financements accord\u00e9s par une fondation \u00e0 la recherche psychiatrique en Suisse. Le projet s&rsquo;inscrit dans l&rsquo;\u00e9cosyst\u00e8me d\u00e9velopp\u00e9 depuis plus d&rsquo;une d\u00e9cennie par le Centre Synapsy, qui r\u00e9unit cliniciens, neuroscientifiques, ing\u00e9nieurs et chercheurs en informatique dans toute la r\u00e9gion l\u00e9manique \u2013 et, au Campus Biotech, les \u00e9quipes qui portent d\u00e9j\u00e0 ATHENA.<\/p>\n<p><em>\u00ab ATHENA-II n&rsquo;aurait probablement pas pu voir le jour sans ATHENA, ni sans la force de l&rsquo;\u00e9cosyst\u00e8me du Campus Biotech. C&rsquo;est uniquement dans un tel environnement que ce type de recherche est possible \u2013 celui construit dans la r\u00e9gion du lac L\u00e9man gr\u00e2ce \u00e0 l&rsquo;ex P\u00f4le de recherche national Synapsy, et d\u00e9sormais au r\u00e9seau Synapsy \u00bb<\/em>, Indrit B\u00e8gue<\/p>\n<p><small>\u00b9 Bonhoeffer, M., Muratore, P., Mathis, M.W., B\u00e8gue, I. An explainable AI latent space of brain dynamics reveals a cerebello-prefrontal signature of schizophrenia symptoms. bioRxiv (2026). <a href=\"https:\/\/www.biorxiv.org\/content\/10.64898\/2026.08.25.746991v1\" target=\"_blank\" rel=\"noopener\">https:\/\/www.biorxiv.org\/content\/10.64898\/2026.08.25.746991v1<\/a><\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;apathie et la perte de motivation comptent parmi les sympt\u00f4mes les plus invalidants de la schizophr\u00e9nie et restent, \u00e0 ce jour, sans traitement approuv\u00e9. L&rsquo;essai clinique ATHENA-II \u00e9value une stimulation c\u00e9r\u00e9brale non invasive dont la connectivit\u00e9 c\u00e9r\u00e9brale propre \u00e0 chaque patient d\u00e9termine la cible. Cette \u00e9tude randomis\u00e9e contr\u00f4l\u00e9e, financ\u00e9 \u00e0 hauteur de 4 millions de [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":5408,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[66],"tags":[],"class_list":["post-5406","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-innovation-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ATHENA-II : une stimulation c\u00e9r\u00e9brale guid\u00e9e par la connectivit\u00e9 contre l&#039;apathie dans la schizophr\u00e9nie - Campus Biotech<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/campusbiotech.ch\/fr\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ATHENA-II : une stimulation c\u00e9r\u00e9brale guid\u00e9e par la connectivit\u00e9 contre l&#039;apathie dans la schizophr\u00e9nie - Campus Biotech\" \/>\n<meta property=\"og:description\" content=\"L&rsquo;apathie et la perte de motivation comptent parmi les sympt\u00f4mes les plus invalidants de la schizophr\u00e9nie et restent, \u00e0 ce jour, sans traitement approuv\u00e9. L&rsquo;essai clinique ATHENA-II \u00e9value une stimulation c\u00e9r\u00e9brale non invasive dont la connectivit\u00e9 c\u00e9r\u00e9brale propre \u00e0 chaque patient d\u00e9termine la cible. Cette \u00e9tude randomis\u00e9e contr\u00f4l\u00e9e, financ\u00e9 \u00e0 hauteur de 4 millions de [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/campusbiotech.ch\/fr\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\/\" \/>\n<meta property=\"og:site_name\" content=\"Campus Biotech\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-11T09:58:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-11-11T10:00:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/campusbiotech.ch\/wp-content\/uploads\/2026\/11\/Image1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1312\" \/>\n\t<meta property=\"og:image:height\" content=\"425\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Maxime Bonard\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Maxime Bonard\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/campusbiotech.ch\\\/fr\\\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/campusbiotech.ch\\\/fr\\\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\\\/\"},\"author\":{\"name\":\"Maxime Bonard\",\"@id\":\"https:\\\/\\\/campusbiotech.ch\\\/#\\\/schema\\\/person\\\/4635aa6a5e656beaa30220c00f7aeb23\"},\"headline\":\"ATHENA-II : une stimulation c\u00e9r\u00e9brale guid\u00e9e par la connectivit\u00e9 contre l&rsquo;apathie dans la schizophr\u00e9nie\",\"datePublished\":\"2026-11-11T09:58:11+00:00\",\"dateModified\":\"2026-11-11T10:00:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/campusbiotech.ch\\\/fr\\\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\\\/\"},\"wordCount\":1026,\"image\":{\"@id\":\"https:\\\/\\\/campusbiotech.ch\\\/fr\\\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/campusbiotech.ch\\\/wp-content\\\/uploads\\\/2026\\\/11\\\/Image1.png\",\"articleSection\":[\"Innovation\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/campusbiotech.ch\\\/fr\\\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\\\/\",\"url\":\"https:\\\/\\\/campusbiotech.ch\\\/fr\\\/athena-ii-une-stimulation-cerebrale-guidee-par-la-connectivite-contre-lapathie-dans-la-schizophrenie\\\/\",\"name\":\"ATHENA-II : une stimulation c\u00e9r\u00e9brale guid\u00e9e par la connectivit\u00e9 contre l'apathie dans la schizophr\u00e9nie - 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