Core Insights - Jazz Pharmaceuticals announced long-term data from a Phase 2 trial of Ziihera (zanidatamab-hrii), showing a median overall survival (OS) of 36.5 months after four years of follow-up in patients with HER2-positive gastroesophageal adenocarcinoma [1][4][10] Group 1: Trial Results - The Phase 2 trial included 46 patients with HER2-expressing mGEA, with a median progression-free survival (PFS) of 12.5 months and a median OS of 36.5 months [3][8] - Among 41 patients with centrally confirmed HER2-positive tumors, the median PFS was 15.2 months, indicating durable clinical benefit [2][6] - The confirmed objective response rate (cORR) was 83.8%, with a median duration of response (DOR) of 20.4 months [7][6] Group 2: Safety Profile - The safety profile of Ziihera combined with chemotherapy showed low discontinuation rates and no new safety signals, with common Grade 3-4 treatment-related adverse events including diarrhea (39%) and hypokalemia (22%) [9][4] - The incidence of Grade 3 diarrhea decreased from 52% to 24% after implementing antidiarrheal prophylaxis [9] Group 3: Future Developments - A Phase 3 trial (HERIZON-GEA-01) is currently underway, evaluating Ziihera in combination with standard chemotherapy, with top-line results expected in the second half of 2025 [10][4] - The ongoing development of Ziihera aims to address the high unmet need for effective first-line treatment options for patients with HER2-positive gastroesophageal adenocarcinoma [4][11]

Core Viewpoint - Zymeworks Inc. is advancing its clinical-stage pipeline with the presentation of new preclinical data for ZW1528, a bispecific molecule targeting IL-4Rα and IL-33, aimed at treating respiratory inflammation, particularly chronic obstructive pulmonary disease (COPD) [1][2]. Group 1: Product Development - ZW1528 demonstrates high affinity binding to IL-4Rα and IL-33, effectively blocking IL-4, IL-13, and IL-33 signaling pathways, which are critical in respiratory inflammation [5][6]. - The bispecific design of ZW1528 shows promising manufacturability and stability, supporting high dosing concentrations and subcutaneous administration [5][7]. - Zymeworks is also developing ZW1572, another bispecific inhibitor targeting IL-4Rα and IL-31 for atopic dermatitis, as part of its expanding IL-4Rα program portfolio [3][5]. Group 2: Preclinical Data and Findings - Preclinical data presented at the ATS conference indicate that ZW1528 can suppress both Type 2 and non-Type 2 immune responses in primary human immune cells from COPD patients [6][7]. - In vivo studies in murine models of lung inflammation show efficacy for ZW1528, with extended pharmacokinetics observed in rodent and non-human primate models [6][7]. - The bispecific antibody's blockade of cytokine-driven activation in human epithelial cells is superior to that achieved with monoclonal antibodies targeting either IL-4Rα or IL-33 [7]. Group 3: Company Overview - Zymeworks is a global biotechnology company focused on developing multifunctional biotherapeutics for difficult-to-treat conditions, including cancer and autoimmune diseases [8]. - The company has a robust pipeline of product candidates and has entered into strategic partnerships to enhance its therapeutic platforms [8].

Core Insights - Jazz Pharmaceuticals is presenting significant clinical trial data at the ASCO Annual Meeting, highlighting the potential of Zepzelca® (lurbinectedin) in combination with atezolizumab (Tecentriq®) for first-line maintenance therapy in extensive-stage small cell lung cancer (ES-SCLC) [1][2] - The company is also showcasing long-term outcomes for Ziihera® (zanidatamab-hrii) in HER2-positive gastroesophageal cancer, indicating its potential to change treatment paradigms [1][2] - Efficacy and safety data for dordaviprone (ONC201) in recurrent H3 K27M-mutant diffuse glioma patients are also being presented, addressing a significant unmet medical need [1][2] Group 1: Zepzelca® (lurbinectedin) - The Phase 3 IMforte trial data shows statistically significant and clinically meaningful progression-free survival (PFS) and overall survival (OS) for Zepzelca in combination with atezolizumab for ES-SCLC patients [2][4] - The FDA has received a supplemental New Drug Application based on this trial data, marking a milestone for Zepzelca's approval process [2][4] - An investor webcast is scheduled for June 10 to review Zepzelca data, featuring commentary from experts [3] Group 2: Ziihera® (zanidatamab-hrii) - Updated long-term outcomes and median overall survival findings from the Phase 2 trial of Ziihera in combination with chemotherapy for HER2-positive metastatic gastroesophageal adenocarcinoma will be presented [2][4] - Ziihera is positioned as a differentiated HER2-targeted therapy, with further Phase 3 findings expected later this year [2][4] Group 3: Dordaviprone (ONC201) - New efficacy and safety findings for dordaviprone in adult and pediatric patients with recurrent H3 K27M-mutant diffuse glioma are being highlighted [2][4] - The drug addresses a significant unmet need, as there are currently no FDA-approved therapies for this patient population [2][4] Group 4: Company Overview - Jazz Pharmaceuticals is committed to advancing targeted treatment options that address pressing patient needs, with a focus on oncology and neuroscience [55] - The company has a diverse portfolio of marketed medicines and is dedicated to developing potentially life-changing therapies for serious diseases [55]

Core Viewpoint - Zymeworks Inc. has appointed Dr. Sabeen Mekan as Senior Vice President of Clinical Development, enhancing its leadership team to advance its clinical-stage oncology portfolio and diversify into autoimmune and inflammatory diseases [1][2]. Company Overview - Zymeworks Inc. is a clinical-stage biotechnology company focused on developing novel biotherapeutics for difficult-to-treat diseases, including cancer, inflammation, and autoimmune diseases [1][4]. - The company utilizes proprietary technologies to engineer and develop differentiated antibody-based therapeutic candidates, including zanidatamab, a HER2-targeted bispecific antibody [4][5]. Leadership Changes - Dr. Sabeen Mekan, with 18 years of experience in hematology and oncology, will play a crucial role in formulating the clinical development strategy for Zymeworks' oncology portfolio [2][3]. - Dr. Jeff Smith continues as Executive Vice President & Chief Medical Officer, focusing on R&D in autoimmune and inflammatory diseases [1][2]. - Barbara Schaeffler has been promoted to Senior Vice President, Clinical Development Operations, reporting to Dr. Smith [1]. Clinical Development Focus - The expanded clinical development team aims to enhance the focus on progressing Zymeworks' clinical-stage solid tumor portfolio while diversifying into autoimmune and inflammatory diseases [2]. - Dr. Mekan expressed commitment to addressing unmet needs in various cancer types through next-generation antibody-drug conjugates and multispecific antibody therapeutics [2][3]. Pipeline and Regulatory Progress - Zymeworks has received FDA accelerated approval for Ziihera® (zanidatamab-hrii) for treating adults with previously-treated, unresectable or metastatic HER2-positive biliary tract cancer [4]. - The company is advancing a robust pipeline, with Phase 1 studies for ZW171 and ZW191 actively recruiting and an investigational new drug application for ZW251 planned for mid-2025 [5].

Core Viewpoint - Zymeworks Inc. is set to report its first quarter 2025 financial results on May 8, 2025, followed by a conference call and webcast to discuss the results and provide a corporate update [1][2] Company Overview - Zymeworks Inc. is a clinical-stage biotechnology company focused on developing novel, multifunctional biotherapeutics aimed at improving treatment for difficult-to-treat diseases such as cancer, inflammation, and autoimmune diseases [3] - The company utilizes its proprietary Azymetric™ technology to engineer and develop zanidatamab, a HER2-targeted bispecific antibody [3] - Zymeworks has exclusive agreements with BeiGene and Jazz Pharmaceuticals for the development and commercialization of zanidatamab in different regions [3] - The U.S. FDA has granted accelerated approval for Ziihera® (zanidatamab-hrii) for treating adults with previously-treated, unresectable or metastatic HER2-positive second-line biliary tract cancer, marking it as the first dual HER2-targeted bispecific antibody approved for this indication in the U.S. [3] - Zanidatamab is currently under regulatory review in the EU and China and is being evaluated in multiple global clinical trials for various HER2-expressing cancers [3] - Zymeworks is advancing a robust pipeline of product candidates, with ongoing Phase 1 studies for ZW171 and ZW191, and plans for an investigational new drug application for ZW251 in mid-2025 [3] - The company has established strategic partnerships with global biopharmaceutical companies to further leverage its therapeutic platforms [3]

VANCOUVER, British Columbia, April 17, 2025 (GLOBE NEWSWIRE) -- Zymeworks Inc. (NASDAQ:ZYME), a clinical-stage biotechnology company developing a diverse pipeline of novel, multifunctional biotherapeutics to improve the standard of care for difficult-to-treat diseases, including cancer, inflammation, and autoimmune disease, today announced that management will report its first quarter 2025 financial results after market close on May 8, 2025. Following the announcement, management will host a conference call ...