{"id":28375,"date":"2026-03-09T16:33:08","date_gmt":"2026-03-09T16:33:08","guid":{"rendered":"https:\/\/www.europesays.com\/ch\/28375\/"},"modified":"2026-03-09T16:33:08","modified_gmt":"2026-03-09T16:33:08","slug":"roches-giredestrant-misses-key-goal-in-first-line-breast-cancer-study","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ch\/28375\/","title":{"rendered":"Roche&#8217;s Giredestrant Misses Key Goal in First-Line Breast Cancer Study"},"content":{"rendered":"\n<p class=\"yf-1fy9kyt\">Roche\u00a0RHHBY announced results from a late-stage study evaluating its investigational candidate, giredestrant, in combination with palbociclib for patients with estrogen receptor (ER)-positive, human epidermal growth factor receptor 2 (HER2)-negative locally advanced or metastatic breast cancer. The phase III persevERA Breast Cancer study is evaluating the combo\u2019s efficacy and safety in 992 patients compared to letrozole plus palbociclib in the first-line setting.<\/p>\n<p class=\"yf-1fy9kyt\">Per the data readout, the late-stage study failed to meet its primary endpoint of achieving a statistically significant improvement in progression-free survival (PFS) compared with the standard regimen of letrozole plus palbociclib in the intent-to-treat population. However, the giredestrant combination showed a numerical improvement in PFS.<\/p>\n<p class=\"yf-1fy9kyt\">Safety findings from the study were broadly consistent with expectations. The adverse events observed with the giredestrant and palbociclib combination were manageable and aligned with the known safety profiles of the individual therapies.<\/p>\n<p class=\"yf-1fy9kyt\">Despite the missed primary endpoint, management expressed confidence in the long-term potential of giredestrant across ER-positive breast cancer settings. The company indicated that it continues to see a development path for the candidate, including potential use with CDK4\/6 inhibitors in the adjuvant setting, and plans to advance ongoing studies within its broader giredestrant clinical program to identify patient populations that may derive the greatest benefit.<\/p>\n<p class=\"yf-1fy9kyt\">We remind the investors that last month, the FDA accepted Roche\u2019s new drug application (NDA) for giredestrant in combination with everolimus, for the treatment of adult patients with ER-positive, HER2-negative, ESR1-mutated locally advanced or metastatic breast cancer following progression on prior endocrine therapy. The regulatory body has set a target action date of Dec. 18, 2026.<\/p>\n<p class=\"yf-1fy9kyt\">Per RHHBY, the regimen could become the first and only oral SERD combination available in the post-CDK4\/6 inhibitor setting if approved.<\/p>\n<p class=\"yf-1fy9kyt\">In the past six months, Roche\u2019s shares have gained 32.4% compared with the\u00a0industry\u2019s 20% growth.<\/p>\n<p>    <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/www.europesays.com\/ch\/wp-content\/uploads\/2026\/03\/7cbfeba275d0e56372cdd96a427a0bb9.jpeg\" alt=\"Zacks Investment Research\" loading=\"eager\" height=\"617\" width=\"620\" class=\"yf-lglytj  loaded\"\/> Zacks Investment Research      <\/p>\n<p class=\"yf-1fy9kyt\">Image Source: Zacks Investment Research<\/p>\n<p class=\"yf-1fy9kyt\">The NDA submission for giredestrant is supported by data from the phase III evERA breast cancer study, which showed that giredestrant combined with everolimus significantly improved PFS compared with standard endocrine therapy plus everolimus in patients with ER-positive breast cancer.<\/p>\n<p class=\"yf-1fy9kyt\">Overall survival data showed a favorable trend with further follow-up ongoing, while the regimen demonstrated a manageable safety profile. The evERA study represented the first positive phase III outcome for giredestrant, alongside encouraging results from the phase III lidERA study in early-stage breast cancer, which Roche plans to submit to global regulators, including the FDA, in the near term. The rationale for the lidERA study was supported by earlier neoadjuvant data, including the phase II coopERA study, which showed giredestrant reduced malignant cell proliferation (Ki67 levels) more effectively than an aromatase inhibitor.<\/p>\n<p class=\"yf-1fy9kyt\">Roche stated that the persevERA study represents the first of two phase III studies evaluating giredestrant in the first-line setting. The second study, pionERA, is assessing giredestrant in combination with a physician\u2019s choice of CDK4\/6 inhibitor in patients with endocrine-resistant, ER-positive, HER2-negative breast cancer, with results expected in 2027.<\/p>\n<p class=\"yf-1fy9kyt\">Giredestrant is an investigational, oral, potent next-generation SERD and full antagonist designed to block estrogen and thereby slow or stop the growth of ER-positive breast cancer cells.<\/p>\n<p class=\"yf-1fy9kyt\">Roche is also evaluating giredestrant in an extensive clinical development program in five company-sponsored phase III studies that span multiple treatment settings and lines of therapy.<\/p>\n<p class=\"yf-1fy9kyt\">The successful development of giredestrant will boost RHHBY\u2019s breast cancer franchise, as ER-positive breast cancer accounts for approximately 70% of cases diagnosed.<\/p>\n<p>       <img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/ywAAAAAAQABAAACAUwAOw==\" alt=\"Roche Holding AG Price and Consensus\" loading=\"lazy\" height=\"264\" width=\"568\" class=\"yf-lglytj loader\"\/> Roche Holding AG Price and Consensus     <\/p>\n<p class=\"yf-1fy9kyt\">Roche Holding AG price-consensus-chart | Roche Holding AG Quote<\/p>\n<p class=\"yf-1fy9kyt\">Roche currently carries a Zacks Rank #3 (Hold).<\/p>\n<p class=\"yf-1fy9kyt\">Some better-ranked stocks in the biotech sector are\u00a0USANA Health Sciences USNA,\u00a0Catalyst Pharmaceuticals CPRX and ALX Oncology Holdings ALXO. While USNA and CPRX sport a Zacks Rank #1 (Strong Buy) each, ALXO carries a Zacks Rank #2 (Buy) at present. You can see\u00a0the complete list of today\u2019s Zacks #1 Rank stocks here.<\/p>\n<p class=\"yf-1fy9kyt\">Over the past 60 days, estimates for USANA Health Sciences\u2019 2026 earnings per share (EPS) have risen from $1.90 to $2.00. USNA shares have lost 40.8% over the past six months.<\/p>\n<p class=\"yf-1fy9kyt\">USANA Health Sciences\u2019 earnings beat estimates in three of the trailing four quarters and matched once, with the average surprise being 21.92%.<\/p>\n<p class=\"yf-1fy9kyt\">Over the past 60 days, estimates for Catalyst Pharmaceuticals\u2019 2026 EPS have risen from $2.53 to $2.82. CPRX shares have soared 22.8% over the past six months.<\/p>\n<p class=\"yf-1fy9kyt\">Catalyst Pharmaceuticals\u2019 earnings beat estimates in each of the trailing four quarters, with the average surprise being 35.19%.<\/p>\n<p class=\"yf-1fy9kyt\">Over the past 60 days, estimates for ALX Oncology Holdings\u2019 2026 loss per share have narrowed from $1.21 to 88 cents. ALXO shares have rallied 88.8% over the past six months.<\/p>\n<p class=\"yf-1fy9kyt\">ALX Oncology Holdings\u2019 earnings missed estimates in each of the trailing four quarters, with the average negative surprise being 12.82%.<\/p>\n<p class=\"yf-1fy9kyt\">Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. <a href=\"https:\/\/www.zacks.com\/registration\/pfp\/?ALERT=RPT_7BEST_YHOSYND&amp;ADID=SYND_YAHOO_7BEST_ANALYSTBLOG_256_2880934&amp;cid=CS-YAHOO-FT-analyst_blog|company_news_medical_sector-2880934&amp;t=RHHBY\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:Click to get this free report;elm:context_link;itc:0;sec:content-canvas\" class=\"link \">Click to get this free report<\/a><\/p>\n<p class=\"yf-1fy9kyt\"><a href=\"https:\/\/www.zacks.com\/registration\/pfp?ALERT=YAHOO_ZER&amp;d_alert=ZER_CONF&amp;t=RHHBY&amp;ADID=SYND_YAHOO_TCK_ANALYSTBLOG_256_2880934_RHHBY&amp;cid=CS-YAHOO-FT-analyst_blog|company_news_medical_sector-2880934\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:Roche Holding AG (RHHBY) : Free Stock Analysis Report;elm:context_link;itc:0;sec:content-canvas\" class=\"link \">Roche Holding AG (RHHBY) : Free Stock Analysis Report<\/a><\/p>\n<p class=\"yf-1fy9kyt\"><a href=\"https:\/\/www.zacks.com\/registration\/pfp?ALERT=YAHOO_ZER&amp;d_alert=ZER_CONF&amp;t=CPRX&amp;ADID=SYND_YAHOO_TCK_ANALYSTBLOG_256_2880934_CPRX&amp;cid=CS-YAHOO-FT-analyst_blog|company_news_medical_sector-2880934\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:Catalyst Pharmaceuticals, Inc. (CPRX) : Free Stock Analysis Report;elm:context_link;itc:0;sec:content-canvas\" class=\"link \">Catalyst Pharmaceuticals, Inc. (CPRX) : Free Stock Analysis Report<\/a><\/p>\n<p class=\"yf-1fy9kyt\"><a href=\"https:\/\/www.zacks.com\/registration\/pfp?ALERT=YAHOO_ZR&amp;d_alert=rd_final_rank&amp;t=USNA&amp;ADID=SYND_YAHOO_TCK_ANALYSTBLOG_256_2880934_USNA&amp;cid=CS-YAHOO-FT-analyst_blog|company_news_medical_sector-2880934\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:USANA Health Sciences, Inc. (USNA) : Free Stock Analysis Report;elm:context_link;itc:0;sec:content-canvas\" class=\"link \">USANA Health Sciences, Inc. (USNA) : Free Stock Analysis Report<\/a><\/p>\n<p class=\"yf-1fy9kyt\"><a href=\"https:\/\/www.zacks.com\/registration\/pfp?ALERT=YAHOO_ZR&amp;d_alert=rd_final_rank&amp;t=ALXO&amp;ADID=SYND_YAHOO_TCK_ANALYSTBLOG_256_2880934_ALXO&amp;cid=CS-YAHOO-FT-analyst_blog|company_news_medical_sector-2880934\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:ALX Oncology Holdings Inc. (ALXO) : Free Stock Analysis Report;elm:context_link;itc:0;sec:content-canvas\" class=\"link \">ALX Oncology Holdings Inc. (ALXO) : Free Stock Analysis Report<\/a><\/p>\n<p class=\"yf-1fy9kyt\"><a href=\"https:\/\/www.zacks.com\/stock\/news\/2880934\/roche-s-giredestrant-misses-key-goal-in-first-line-breast-cancer-study?cid=CS-YAHOO-FT-analyst_blog|company_news_medical_sector-2880934&amp;t=RHHBY\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:This article originally published on Zacks Investment Research (zacks.com).;elm:context_link;itc:0;sec:content-canvas\" class=\"link \">This article originally published on Zacks Investment Research (zacks.com).<\/a><\/p>\n<p class=\"yf-1fy9kyt\"><a href=\"https:\/\/www.zacks.com\/?t=RHHBY&amp;cid=CS-YAHOO-FT-analyst_blog|company_news_medical_sector-2880934\" rel=\"nofollow noopener\" target=\"_blank\" data-ylk=\"slk:Zacks Investment Research;elm:context_link;itc:0;sec:content-canvas\" class=\"link \">Zacks Investment Research<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Roche\u00a0RHHBY announced results from a late-stage study evaluating its investigational candidate, giredestrant, in combination with palbociclib for patients&hellip;\n","protected":false},"author":2,"featured_media":11854,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[124],"tags":[207,10950,12609,7609,17189,155,134,472],"class_list":{"0":"post-28375","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-roche","8":"tag-breast-cancer","9":"tag-combination","10":"tag-estrogen-receptor","11":"tag-metastatic-breast-cancer","12":"tag-palbociclib","13":"tag-phase-iii","14":"tag-roche","15":"tag-zacks-investment-research"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ch\/116200184416763800","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/posts\/28375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/comments?post=28375"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/posts\/28375\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/media\/11854"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/media?parent=28375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/categories?post=28375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ch\/wp-json\/wp\/v2\/tags?post=28375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}