{"id":123787,"date":"2026-09-28T16:14:58","date_gmt":"2026-09-28T07:14:58","guid":{"rendered":"https:\/\/japanir.jp\/en\/ir\/4519-20260928-01_wp_product_announcement\/"},"modified":"2026-09-28T16:14:58","modified_gmt":"2026-09-28T07:14:58","slug":"4519-20260928-01_wp_product_announcement","status":"publish","type":"ir_release","link":"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/","title":{"rendered":"Notice on Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development"},"content":{"rendered":"<p>Announced discontinuation of emugrobart obesity development and return of license. Began preparations to resume development in the SMA area. No impact on consolidated earnings forecasts for the fiscal year ending December 2026.<\/p>\n","protected":false},"comment_status":"open","ping_status":"closed","template":"","meta":{"Ticker":"","DATE":"","longName":"","company_name_ja":"","fullTimeEmployees":0,"address":"","phone":"","website":"","industry":"","sector":"","regularMarketPrice":0,"financialCurrency":"","marketCap":0,"fiftyTwoWeekLow":0,"fiftyTwoWeekHigh":0,"epsTrailingTwelveMonths":0,"epsForward":0,"bookValue":0,"totalRevenue":0,"OperatingIncome":0,"operatingMargins":0,"NetIncome":0,"profitMargins":0,"ebitda":0,"trailingPE":0,"forwardPE":0,"priceToBook":0,"returnOnEquity":0,"recommendationMean":0,"recommendationKey":"","targetMeanPrice":0,"numberOfAnalystOpinions":0,"analyst_earnings_data":"","dividendRate":0,"dividendYield":0,"payoutRatio":0,"totalEsg":0,"environmentScore":0,"socialScore":0,"governanceScore":0,"title":"","providerPublishTime":"","link":"","longBusinessSummary":"","longBusinessSummary_ja":"","quarterly_revenue":0,"quarterly_net_income":0,"quarterly_operating_profit":0,"enterprise_value":0,"price_fetched_at":"","company_officer_1_name":"","company_officer_1_title":"","company_officer_2_name":"","company_officer_2_title":"","company_officer_3_name":"","company_officer_3_title":"","company_officer_4_name":"","company_officer_4_title":"","company_officer_5_name":"","company_officer_5_title":"","company_officers_update_time":"","get_dividend_history_year1":0,"get_dividend_history_year2":0,"get_dividend_history_year3":0,"get_dividend_history_year4":0,"get_dividend_history_year5":0,"get_dividend_history_year6":0,"get_dividend_history_year7":0,"get_dividend_history_year8":0,"get_dividend_history_year9":0,"get_dividend_history_year10":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"jir_stock_code":"4519","jir_company_name":"Chugai Pharmaceutical Co., Ltd.","jir_importance":"\u2605\u2605\u2605\u2605\u2606","jir_publication_date":"2026-09-28","jir_source_link":"https:\/\/japanir.jp\/wp-content\/uploads\/2026\/09\/4519-20260928-01.pdf","jir_short_summary":"Announced discontinuation of emugrobart obesity development and return of license. Began preparations to resume development in the SMA area. No impact on consolidated earnings forecasts for the fiscal year ending December 2026.","jir_summary":"### Key Points\nChugai Pharmaceutical Co., Ltd. announced it will discontinue the obesity development of GYM329 emugrobart and return full licensing rights to Roche. At the same time, based on accumulated safety and pharmacodynamic data and the Phase III design, the company intends to internally advance preparations to resume development for SMA. Following the interim analysis results of the Phase II obesity trial, it was judged that clinically meaningful weight loss could not be achieved. There is no impact on the full-year forecast announced on January 29, 2026.\n\n### Outlook and Impact\nWith a view to resuming emugrobart development for SMA and FSHD, preparations have begun that also consider out-licensing to third parties. The company will evaluate the potential to provide SMA patients with a new treatment option and will consider future development policy. At this time, no impact on consolidated earnings forecasts for the fiscal year ending December 2026 has been confirmed.","jir_financial_highlights":"Financial indicators expected to be affected: Unknown (Unknown)","jir_category":"","jir_hashtags":"#ChugaiPharmaceutical, #ChangeInDevelopmentPolicy","jir_key_figures":"Financial indicators expected to be affected: Unknown\nPreparations to resume SMA development: In progress\nPhase II interim analysis results for obesity: Failure to meet endpoints; decision to discontinue","jir_meta_title":"Chugai Pharmaceutical Co., Ltd. \u2014 Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development | September 2026","jir_meta_description":"Chugai Pharmaceutical Co., Ltd. announced discontinuation of GYM329 obesity development and return of license. Preparations to resume SMA development have begun. Impact on the fiscal year ending December 2026 is currently unknown; focus shifts to future development strategy.","jir_og_title":"Chugai Pharmaceutical Co., Ltd. to Discontinue emugrobart Obesity Development and Resume SMA Development","jir_og_description":"Discontinuation of GYM329 obesity development and return of license. Preparations to resume development for SMA have started. Impact on forecasts for the fiscal year ending December 2026 is currently unknown.","jir_og_image_url":"\/assets\/og\/company-product_announcement.jpg","jir_chart_data_collection":"[]","ir_related_company":6836,"ir_release_date":"","ir_type":"","ir_is_new":false,"ir_document_url":"","jir_ir_type":"product_announcement","footnotes":""},"sector":[],"importance":[],"class_list":["post-123787","ir_release","type-ir_release","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Notice on Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development - Japan IR<\/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:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/\",\"url\":\"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/\",\"name\":\"Notice on Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development - Japan IR\",\"isPartOf\":{\"@id\":\"https:\/\/japanir.jp\/en\/#website\"},\"datePublished\":\"2026-09-28T07:14:58+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/japanir.jp\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Notice on Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/japanir.jp\/en\/#website\",\"url\":\"https:\/\/japanir.jp\/en\/\",\"name\":\"Japan IR\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/japanir.jp\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Notice on Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development - Japan IR","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/","url":"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/","name":"Notice on Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development - Japan IR","isPartOf":{"@id":"https:\/\/japanir.jp\/en\/#website"},"datePublished":"2026-09-28T07:14:58+00:00","breadcrumb":{"@id":"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/japanir.jp\/en\/company\/company-4519\/ir\/4519-20260928-01_wp_product_announcement\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/japanir.jp\/en\/"},{"@type":"ListItem","position":2,"name":"Notice on Discontinuation of GYM329 (emugrobart) Obesity Development, License Return and Resumption of SMA Development"}]},{"@type":"WebSite","@id":"https:\/\/japanir.jp\/en\/#website","url":"https:\/\/japanir.jp\/en\/","name":"Japan IR","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/japanir.jp\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"related_company_data":{"id":"6836","title":"Chugai Pharmaceutical Co. Ltd.","ticker":"4519"},"_links":{"self":[{"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/ir-release\/123787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/ir-release"}],"about":[{"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/types\/ir_release"}],"replies":[{"embeddable":true,"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/comments?post=123787"}],"version-history":[{"count":0,"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/ir-release\/123787\/revisions"}],"wp:attachment":[{"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/media?parent=123787"}],"wp:term":[{"taxonomy":"sector","embeddable":true,"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/sector?post=123787"},{"taxonomy":"importance","embeddable":true,"href":"https:\/\/japanir.jp\/en\/wp-json\/wp\/v2\/importance?post=123787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}