On November 6, 2025 Plus Therapeutics, Inc. (Nasdaq: PSTV) (the "Company"), a clinical-stage pharmaceutical company developing targeted radiotherapeutics with advanced platform technologies for central nervous system (CNS) cancers, reported its participation at the 40th Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) Annual Meeting, Melanoma Research Foundation (MRF) Brain Metastases Summit 4.0 on November 9, 2025 in Alexandria, VA. Dr. Andrew Brenner, M.D., Ph.D., Professor of Medicine in the Division of Hematology and Oncology at The University of Texas Health Science Center at San Antonio will highlight the Company’s REYOBIQ and ReSPECT-LM clinical trial results in the session on leptomeningeal metastases (LM) disease.

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Recall, at the 2025 SNO/ASCO CNS Metastases conference in August, ReSPECT-LM Phase 1 single dose escalation trial data showed:

REYOBIQ produced a clinical benefit rate of over 75% in 3 clinically relevant outcome measures
RNA sequencing and circulating tumor cell reduction consistent with tumor cell death
No dose limiting toxicities were observed with an overall favorable safety profile up to and including the recommended phase 2 dose of 44.1 mCi
"Given the growing incidence and unmet need, with no approved therapies for LM, we are encouraged by the continued interest in the ReSPECT-LM data, which demonstrated excellent tolerance of REYOBIQ at much higher doses than current standard, which we believe supports its broad therapeutic range," said Dr. Brenner. "REYOBIQ has been granted FDA Fast Track and Orphan Drug Designation, with enrollment in the ReSPECT-LM Dose Optimization Trial ongoing."

About LM
Leptomeningeal metastases (LM) are a rare but severe complication of advanced cancer, affecting the fluid-lined structures of the central nervous system. LM occurs in approximately 5% of patients with metastatic cancer, with breast cancer, lung cancer, and melanoma being the most common sources. Median survival is typically 2-6 months, and effective treatment options are limited, highlighting the urgent need for novel therapies.

About REYOBIQ (rhenium Re186 obisbemeda)
REYOBIQ (rhenium Re186 obisbemeda) is a novel injectable radiotherapy specifically formulated to deliver direct targeted high dose radiation in CNS tumors in a safe, effective, and convenient manner to optimize patient outcomes. REYOBIQ has the potential to reduce off target risks and improve outcomes for CNS cancer patients, versus currently approved therapies, with a more targeted and potent radiation dose. Rhenium-186 is an ideal radioisotope for CNS therapeutic applications due to its short half-life, beta energy for destroying cancerous tissue, and gamma energy for real-time imaging. REYOBIQ is being evaluated for the treatment of recurrent glioblastoma, leptomeningeal metastases, and pediatric brain cancer in the ReSPECT-GBM, ReSPECT-LM, and ReSPECT-PBC clinical trials. ReSPECT-GBM is supported by an award from the National Cancer Institute (NCI), part of the U.S. National Institutes of Health (NIH), and ReSPECT-LM is funded by a three-year $17.6M grant by the Cancer Prevention & Research Institute of Texas (CPRIT). The Company’s ReSPECT-PBC clinical trial for pediatric brain cancer is supported by a $3 million grant from the U.S. Department of Defense’s Peer Reviewed Cancer Research Program.

(Press release, Plus Therapeutics, NOV 6, 2025, View Source;_hsenc=p2ANqtz-9wK0pEiXdCF6C_QhGr1luNoUuLy0Y0aCzdXjasFH0TXIWLb6Cl_OE8hKG707ChQCieDhElzVLmx2Jvfp8-Ij7lJUmdlw&_hsmi=388703881&utm_content=388703881&utm_source=hs_email [SID1234659609])

On November 6, 2025 aTyr Pharma, Inc. (Nasdaq: ATYR) ("aTyr" or the "Company"), a clinical stage biotechnology company engaged in the discovery and development of first-in-class medicines from its proprietary tRNA synthetase platform, reported third quarter 2025 results and provided a corporate update.

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"In September, we announced results from our Phase 3 EFZO-FIT study of efzofitimod in pulmonary sarcoidosis, a major form of interstitial lung disease (ILD). While we did not meet the primary endpoint, efzofitimod is the first investigational therapy to exhibit improvements in quality of life across multiple disease-related health outcomes while also reducing steroid burden in patients with pulmonary sarcoidosis," said Sanjay S. Shukla, M.D., M.S., President and Chief Executive Officer of aTyr. "Treatment options for pulmonary sarcoidosis are limited and can include a significant reliance on the use of oral corticosteroids, which often have significant side effects. There remains an urgent need for a new safe and effective treatment for patients with chronic, symptomatic disease."

"Based on the findings from EFZO-FIT, we believe there is drug activity for efzofitimod as evidenced by improvements across multiple clinically relevant efficacy measures. Based on this, coupled with the ongoing high unmet medical need in pulmonary sarcoidosis, we plan to meet with the U.S. Food and Drug Administration (FDA) in the first quarter of 2026 to review the results of the study and determine the path forward for efzofitimod in pulmonary sarcoidosis. We plan to provide an update regarding the next steps for the program following that meeting."

Third Quarter 2025 and Subsequent Period Highlights

Reported results from the global Phase 3 EFZO-FIT study to evaluate the efficacy and safety of 3.0 mg/kg and 5.0 mg/kg of efzofitimod or placebo in 268 patients with pulmonary sarcoidosis. The study did not meet its primary endpoint of change from baseline in mean daily oral corticosteroid dose at week 48. Clinical benefit for 5.0 mg/kg efzofitimod was observed across multiple pre-specified study efficacy parameters at week 48 compared to placebo, including the King’s Sarcoidosis Questionnaire (KSQ)-Lung score, KSQ-General Health score, Fatigue Assessment Scale, and complete steroid withdrawal and improvement in KSQ-Lung score. Additionally, treatment with efzofitimod maintained lung function as a measure of forced vital capacity and was well-tolerated with a safety profile consistent with prior trials conducted to date. Based on these findings, the Company plans to meet with the FDA in the first quarter of 2026 to review the results and determine the path forward for efzofitimod in pulmonary sarcoidosis.
Presented the results from the Phase 3 EFZO-FIT study in a late-breaking oral abstract at the European Respiratory Society Congress 2025, which took place September 27 – October 1, 2025, in Amsterdam, Netherlands. Daniel Culver, D.O., Chair of the Department of Pulmonary Medicine at the Cleveland Clinic and principal investigator of the study, delivered the presentation, titled "EFZO-FIT: The Largest Ever Interventional Trial in Pulmonary Sarcoidosis."
Enrollment is progressing in the Phase 2 EFZO-CONNECT study to evaluate the efficacy, safety and tolerability of efzofitimod in patients with limited or diffuse systemic sclerosis (SSc, or scleroderma)-related ILD (SSc-ILD). This proof-of-concept study is a randomized, double-blind, placebo-controlled, 28-week study consisting of three parallel cohorts randomized 2:2:1 to either 270 mg or 450 mg of efzofitimod or placebo administered intravenously monthly for a total of six doses. The study intends to enroll up to 25 patients at multiple centers in the United States. Promising interim data from the study were reported in the second quarter of 2025, and the Company expects to complete enrollment in the study in the first half of 2026.
Presented at the Federation of European Biochemical Societies (FEBS) Special Meeting, "Expanding frontiers in aminoacyl-tRNA synthetase research," which took place September 28 – October 3, 2025, in Dubrovnik, Croatia. Leslie Nangle, Ph.D., Vice President of Research at aTyr, delivered a presentation titled, "Advancing a therapeutic platform based on tRNA synthetases for treatment of fibrotic lung diseases."
Third Quarter 2025 Financial Highlights and Cash Position

Cash & Investment Position: Cash, cash equivalents, restricted cash and available-for-sale investments as of September 30, 2025, were $92.9 million.
R&D Expenses: Research and development expenses were $22.1 million for the third quarter 2025, which consisted primarily of clinical trial costs for the Phase 3 EFZO-FIT and Phase 2 EFZO-CONNECT studies, manufacturing costs for a potential Biologics License Application (BLA) filing and commercial supply for the efzofitimod program, and research and development costs for the efzofitimod and discovery programs.
G&A Expenses: General and administrative expenses were $4.8 million for the third quarter 2025.
About Efzofitimod

Efzofitimod is a novel biologic immunomodulator in clinical development for the treatment of interstitial lung disease (ILD), a group of immune-mediated disorders that can cause inflammation and fibrosis, or scarring, of the lungs. Efzofitimod is a tRNA synthetase derived therapy that selectively modulates activated myeloid cells through neuropilin-2 to resolve inflammation without immune suppression and potentially prevent the progression of fibrosis. In addition to the global Phase 3 EFZO-FIT study of efzofitimod in patients with pulmonary sarcoidosis, a major form of ILD, efzofitimod is also being investigated in the Phase 2 EFZO-CONNECT study in patients with systemic sclerosis (SSc, or scleroderma)-related ILD. These forms of ILD have limited therapeutic options and there is a need for safer and more effective, disease-modifying treatments that improve outcomes.

(Press release, aTyr Pharma, NOV 6, 2025, View Source [SID1234659608])

On November 6, 2025 Sutro Biopharma, Inc. (Sutro or the Company) (NASDAQ: STRO), an oncology company pioneering site-specific and novel-format antibody drug conjugates (ADCs), reported its financial results for the third quarter of 2025 and recent business highlights.

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"We’ve made strong progress this quarter as we continue to build momentum across our next-generation ADC portfolio," said Jane Chung, Sutro’s Chief Executive Officer. "STRO-004, our Tissue Factor ADC, has received IND clearance ahead of our projections and remains on track to enter the clinic this year, backed by compelling preclinical data that highlight its strong safety profile and potential best-in-class differentiation. In parallel, we’re strengthening our leadership in dual-payload ADCs by showcasing positive new preclinical data from our wholly owned programs and advancing our collaboration with Astellas. This collaboration focuses on developing dual-payload ADCs that combine a cytotoxic payload with a novel immunostimulatory payload, designed to enhance the therapeutic index and overcome tumor resistance. We look forward to sharing updates on each of our next-generation ADC programs at our virtual R&D Day on November 12."

Ms. Chung continued: "Following our recent organizational restructuring, we are well positioned to focus resources on the programs and partnerships that offer the greatest potential for near-term value creation. The resulting operational efficiencies, combined with expected near-term milestone payments, extend our cash runway into at least mid-2027—allowing us to advance key programs through meaningful clinical milestones. With a sharpened strategic focus and a robust scientific foundation, we believe Sutro is poised to deliver differentiated best-in-class ADCs that have the potential to redefine standards of care in oncology."

Wholly Owned Pipeline

STRO-004: The Company received U.S. FDA clearance of its IND application for STRO-004, its potential best-in-class Tissue Factor ADC. Sutro remains on track to dose the first patient in the first-in-human basket trial with STRO-004 before year-end. STRO-004 has a favorable preclinical safety profile in non-human primate studies up to 50 mg/kg, the highest dose tested.

STRO-006: A highly selective integrin β6 (ITGB6) ADC, STRO-006 is expected to enter clinical development in 2026 for the treatment of multiple solid tumors.

Dual-Payload Program: Sutro’s wholly owned dual-payload ADC program remains on track, with an IND submission targeted for 2027.

Next-Generation ADC Collaborations

Astellas: Two research and development programs are progressing under Sutro’s collaboration with Astellas focused on dual-payload immunostimulatory ADCs (iADCs), including one program that entered an IND-enabling toxicology study in the first quarter of 2025.

Industry/Medical Conferences

•
16th Annual World ADC Conference, November 3-6, 2025, San Diego, CA
•
Sutro conducted five presentations and participated in three panel sessions at the conference, demonstrating its continued leadership in ADC innovation. For additional details, read the full press release here.

•
Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) 2025 Annual Meeting, November 7-9, 2025, National Harbor, MD
•
Sutro will have a poster presentation at the conference, highlighting preclinical results that demonstrate the ability of novel immunostimulatory dual-payload ADCs to enhance therapeutic index and overcome patient resistance. The posters will be made available on the Presentation & Publication section of Company’s website.

Upcoming Investor Conferences

Management will participate in the following upcoming healthcare investor conference. A webcast of the presentation will be accessible through the News & Events page of the Investor Relations section of the Company’s website at www.sutrobio.com. An archived replay will be available for at least 30 days after the event.

•
37th Annual Piper Sandler Healthcare Conference, December 2-4, 2025, New York, NY

Corporate Updates

•
Sutro management will host a virtual R&D Day on Wednesday, November 12 at 10:00AM ET, including presentations from Sutro management and a guest speaker. To access the live audio webcast, please go to View Source An archived replay of the webcast will be available on the Company’s website following the event.

•
In September, Sutro announced an organizational restructuring to prioritize the advancement of its ADC programs and research and development collaborations. Along with certain near-term milestone payments, the restructuring is expected to extend the Company’s runway into at least mid-2027, following the planned release of initial clinical data from STRO-004, its next-generation Tissue Factor–targeting exatecan ADC, and initiation of clinical studies for at least one other ADC program.

Third Quarter 2025 Financial Highlights

Cash, Cash Equivalents and Marketable Securities

As of September 30, 2025, Sutro had cash, cash equivalents and marketable securities of $167.6 million, as compared to $388.3 million as of September 30, 2024. Cost reductions subsequently realized from the restructuring, combined with refocused clinical development priorities and certain expected near-term milestone payments give the Company an expected cash runway into at least mid-2027.

Revenue

Revenue was $9.7 million for the quarter ended September 30, 2025, as compared to $8.5 million for the quarter ended September 30, 2024, with the 2025 amount related principally to the Astellas collaboration. Future collaboration and license revenue under existing agreements, and from any additional collaboration and license partners, will fluctuate as a result of the amount and timing of revenue recognition of upfront, milestones, and other agreement payments.

Research & Development (R&D) and General & Administrative (G&A) Expenses

Total R&D and G&A expenses for the quarter ended September 30, 2025 were $48.6 million, as compared to $76.4 million for the quarter ended September 30, 2024. The 2025 quarter includes non-cash expenses for stock-based compensation of $1.9 million and depreciation and amortization of $1.9 million, as compared to $6.5 million and $1.8 million, respectively, in the comparable 2024 period.

Restructuring Costs

The total cash payments and costs related to the further operational restructuring announced on September 29, 2025 are estimated to be approximately $4.1 million to $4.3 million, with a significant majority of these amounts expected to be paid in the fourth quarter of 2025. These estimates are subject to a number of assumptions and actual results may differ. The Company may also incur additional costs not currently contemplated due to events that may occur as a result of, or that are associated with, the corporate restructuring.

(Press release, Sutro Biopharma, NOV 6, 2025, View Source [SID1234659605])

On November 6, 2025 Cidara Therapeutics, Inc. (Nasdaq: CDTX) (the Company or Cidara), a biotechnology company using its proprietary Cloudbreak platform to develop drug-Fc conjugate (DFC) therapeutics, reported financial results for the third quarter ended September 30, 2025, and provided recent business updates.

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"With our Phase 3 ANCHOR study now over 50 percent enrolled, we expect to achieve target enrollment of 6,000 participants by December 2025 and thereby advance CD388 as a potential universal preventative for people at increased risk of complications from influenza as well as those seeking alternatives to flu vaccines," said Jeffrey Stein, Ph.D., president and chief executive officer of Cidara. "Based on constructive feedback from the FDA, the ANCHOR study population has been expanded to include generally healthy adults over the age of 65 in addition to individuals with certain comorbidities or compromised immune status. This change more than doubles the target population potentially eligible to receive CD388. Our successful financing this summer has provided us with a strong balance sheet that we expect to be sufficient to fully fund our Phase 3 development program through completion."

Recent and Expected Corporate Highlights

Expanded and accelerated Phase 3 plan for CD388 in influenza. Cidara is proceeding with an expanded and accelerated development plan to seek biologics license application (BLA) approval based on a single Phase 3 study, following an End-of-Phase 2 (EOP2) meeting with the United States (U.S.) Food and Drug Administration (FDA). The Phase 3 study is evaluating the safety and efficacy of CD388 in populations at high-risk for complications from influenza (ANCHOR study). Based on FDA feedback, the ANCHOR study population was expanded to include adults over 65 years of age with no specific comorbidities in addition to subjects over 12 years of age with high-risk comorbidities or immune-compromised status. This increases the initial number of patients that would be potentially eligible to receive CD388 from approximately 50 million to well over 100 million people in the U.S.
Enrolled and dosed the first patients in the Phase 3 ANCHOR study. The ANCHOR study has a target enrollment of 6,000 participants. Cidara dosed the first patients in the U.S. at the end of September 2025 and enrollment is ongoing in 150 sites in the Northern Hemisphere across the U.S. and the United Kingdom (UK). The ANCHOR study will include an interim analysis in the first quarter of 2026 to assess the trial size and powering assumptions and determine the potential need for additional enrollment during the subsequent Southern Hemisphere flu season.
BARDA award for CD388. The award from Biomedical Advanced Research and Development Authority (BARDA) is valued at up to $339.2 million in total. The base period funding of $58.1 million over the initial 24 months will support the onshoring of CD388 manufacturing to the U.S. as an addition to the initial commercial supply chain. This project is being supported in whole or in part with federal funds from the U.S. Department of Health and Human Services; Administration for Strategic Preparedness and Response; BARDA, under contract number 75A50125C0017.
Breakthrough Therapy designation of CD388. The Breakthrough Therapy designation is based on positive results from the Phase 2b study (NAVIGATE study) which showed that CD388 was well-tolerated and that all primary and secondary endpoints were met in connection with preventing seasonal influenza in healthy unvaccinated adults aged 18-64. This designation comes in addition to the previously awarded Fast Track designation and is intended to expedite the review of medicines that treat a serious or life-threatening condition and have shown preliminary clinical evidence indicating the potential for substantial improvement over available therapies.
Highlighted CD388 in presentations at various medical conferences. During September 2025 and October 2025, Cidara gave presentations at various medical conferences including the International Society for Respiratory Viruses 8th Antiviral Group Meeting and 3rd International Meeting on Respiratory Pathogens in Singapore, ID Week 2025 in Atlanta, Georgia, and the European Scientific Working Group on Influenza’s 10th Influenza Conference in Valencia, Spain. These oral presentations included late-breaking Phase 2b clinical data from Cidara’s successful NAVIGATE study that showed CD388 to be well-tolerated with all primary and secondary endpoints met in connection with preventing influenza illness in healthy adults.
Third Quarter 2025 Financial Results

Cash, cash equivalents, restricted cash and available-for-sale investments totaled $476.5 million as of September 30, 2025, compared with $196.2 million as of December 31, 2024.
Collaboration revenue was zero for each of the three and nine months ended September 30, 2025, compared to zero and $1.3 million for the same periods in 2024, respectively. Collaboration revenue related to research and development (R&D) and clinical supply services provided to J&J Innovative Medicine, previously Janssen Pharmaceuticals, Inc., one of the Janssen Pharmaceutical Companies of Johnson & Johnson (Janssen), under our license and collaboration agreement with Janssen (the Janssen Collaboration Agreement), which was terminated upon the effectiveness of our license and technology transfer agreement with Janssen (the Janssen License Agreement) on April 24, 2024.
Acquired in-process research and development (IPR&D) expenses were $45.0 million for each of the three and nine months ended September 30, 2025, compared to zero and $84.9 million for the same periods in 2024, respectively. Acquired IPR&D in 2025 related to a $45.0 million milestone incurred under the Janssen License Agreement, upon dosing the first five subjects in our ANCHOR study, which will be paid to Janssen in the fourth quarter of 2025. Acquired IPR&D in 2024 related to an upfront payment of $85.0 million paid to Janssen under the Janssen License Agreement on April 24, 2024, in connection with the re-acquisition of CD388, plus $0.4 million in direct transaction costs, offset by a gain of $0.5 million to settle the preexisting Janssen Collaboration Agreement relationship.
R&D expenses were $35.5 million and $84.9 million for the three and nine months ended September 30, 2025, respectively, compared to $12.4 million and $25.0 million for the same periods in 2024, respectively. The increase in R&D expenses for the three months ended September 30, 2025 is primarily due to higher expenses associated with CD388 manufacturing related costs and the preparation and initiation of our ANCHOR study. The increase in R&D expenses for the nine months ended September 30, 2025 is primarily due to higher expenses associated with our NAVIGATE study, CD388 manufacturing related costs, and the preparation and initiation of our ANCHOR study, offset by lower nonclinical expenses associated with our Cloudbreak platform.
General and administrative (G&A) expenses were $8.1 million and $20.8 million for the three and nine months ended September 30, 2025, respectively, compared to $5.0 million and $13.3 million for the same periods in 2024, respectively. The increase in G&A expenses is primarily due to higher personnel costs, driven by higher stock-based compensation, offset by lower audit fees.
During the nine months ended September 30, 2025, the Company determined that accrued indirect taxes relating to shipments of our former rezafungin assets totaling $9.4 million were not due and payable upon voluntary disclosure and full compliance in certain jurisdictions and the associated liabilities and operating expenses were reversed as part of continuing operations. No indirect tax reversals were recorded during the three months ended September 30, 2025, or during the three and nine months ended September 30, 2024.
Other income, net was $5.4 million and $8.9 million for the three and nine months ended September 30, 2025, respectively, compared to $1.9 million and $4.0 million for the same periods in 2024, respectively. Other income, net related primarily to interest income generated from cash held in interest-bearing accounts and available-for-sale investments.
Income/loss from discontinued operations for each of the three and nine months ended September 30, 2025 was zero, compared to a loss of $0.5 million and income of $0.4 million for the same periods in 2024, respectively. On April 24, 2024, the Company entered into an asset purchase agreement with Napp Pharmaceutical Group Limited (Napp), an affiliate of Mundipharma Medical Company, pursuant to which all rezafungin assets and related contracts were sold to Napp. All conditions of the sale were completed on April 24, 2024, and the financial results of rezafungin have been reported separately as discontinued operations.
Net loss for the three and nine months ended September 30, 2025 was $83.2 million and $132.4 million, respectively, compared to a net loss of $16.0 million and $117.5 million for the same periods in 2024, respectively.
Third Quarter 2025 Conference Call and Webcast Details

Cidara Therapeutics management will host a conference call and webcast beginning at 5:00 pm ET / 2:00 pm PT today, November 6, 2025. A live webcast may be accessed here. The conference call can be accessed by dialing toll-free 1-844-825-9789 or 1-412-317-5180 (international). The passcode for the conference call is 10203589.

A replay of the webcast will be archived on www.cidara.com for one year under the "Events & Presentations" tab in the Investors section of the company’s website.

(Press release, Cidara Therapeutics, NOV 6, 2025, View Source [SID1234659604])

On November 6, 2025 Zai Lab Limited (NASDAQ: ZLAB; HKEX: 9688) reported financial results for the third quarter of 2025, along with recent product highlights and corporate updates.

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"Zai Lab is entering the next phase of our growth, powered by the rapid advancement of our global pipeline and supported by a commercially profitable and scalable business in China," said Dr. Samantha Du, Founder, Chairperson, and CEO of Zai Lab. "With zoci moving into pivotal development less than two years after IND and multiple differentiated global programs progressing in parallel, we are demonstrating the speed, scientific rigor, and global ambition of our R&D engine. At the same time, our commercial platform in China remains strong, with new products and indications – including KarXT, povetacicept and VYVGART – broadening our long-term growth profile. Together, we are building a company that will make a lasting difference for patients and create long-term value for our shareholders."

"This quarter, we continued to deepen the foundations of the VYVGART launch," said Josh Smiley, President and COO of Zai Lab. "In gMG, we are seeing steady new patient starts and increasing treatment duration, supported by updated treatment guidelines and real-world experience. While adoption is building gradually, physician confidence continues to grow and reinforces the long-term potential of VYVGART as a new standard of care in the treatment of this chronic disease. Looking ahead, we are preparing for our next expected launch for KarXT in schizophrenia. We remain focused on disciplined execution as we position for the significant opportunities ahead, supported by a growing regional business and a rapidly progressing, global pipeline."

Recent Pipeline Highlights

Below are key product updates since our last earnings release:

Oncology Pipeline

•Zocilurtatug Pelitecan (zoci, DLL3 ADC) (formerly ZL-1310):

–In October 2025, Zai Lab initiated a global registrational study of zocilurtatug pelitecan monotherapy in second-line+ extensive-stage small cell lung cancer (ES-SCLC).

–In October 2025, Zai Lab presented updated Phase 1 results at the AACR (Free AACR Whitepaper)-NCI-EORTC International Conference, demonstrating a best overall response rate of 68% at the 1.6 mg/kg dose in second-line extensive-stage small cell lung cancer. The estimated median duration of response (DoR) of 6.1 months across all doses and all lines of therapy is highly encouraging for a monotherapy in this heavily pre-treated and difficult-to-treat patient population. Meaningful activity in patients with brain metastases was also observed, including an 80% response rate in patients with untreated brain metastases. The data also demonstrated a well-tolerated safety profile at 1.6 mg/kg, with Grade ≥ 3 treatment-related adverse events of 13%, no Grade ≥2 interstitial lung disease, and no drug discontinuations. Together, these results reinforce zoci’s best-in-class potential and support the initiation of the global registrational study.

•Tumor Treating Fields (TTFields): In August 2025, Zai Lab announced that the China National Medical Products Administration (NMPA) has granted Innovative Medical Device Designation for TTFields for patients with pancreatic cancer based on the positive results from the Phase 3 PANOVA-3 trial. We plan to submit for regulatory approval in China in the fourth quarter of 2025.

•Bemarituzumab (FGFR2b): In November 2025, Zai Lab partner Amgen announced FORTITUDE-102, a Phase 1b/3 study of bemarituzumab plus chemotherapy and nivolumab in patients with first-line gastric cancer, was stopped.

Immunology Pipeline

•ZL-1503 (IL-13/IL-31R): In November 2025, Zai Lab initiated a global Phase 1/1b study to evaluate safety, tolerability and pharmacokinetics of ZL-1503 in healthy volunteers and participants with moderate to severe atopic dermatitis.

•Efgartigimod (FcRn):

–Sjogren’s disease: In September 2025, Zai Lab joined the registrational UNITY study of efgartigimod subcutaneous given by prefilled syringe in Sjogren’s disease in Greater China (mainland China, Hong Kong, Macau and Taiwan, collectively).

–Seronegative gMG: In August 2025, Zai Lab partner argenx announced topline data from the pivotal ADAPT SERON study of VYVGART in patients with AChR-Ab seronegative gMG. The study met its primary endpoint (p-value=0.0068) and it is the first global phase 3 study to demonstrate clinically meaningful improvements in disease activity across all three subtypes – MuSK+, LRP4+, triple seronegative. Zai Lab participated in the global Phase 3 study in Greater China, enabling a potential China regulatory submission.

•Xanomeline-Trospium (or KarXT) (M1/M4-agonist): In September 2025, the "China Schizophrenia Prevention and Treatment Guidelines (2025 Edition)" were officially released, and KarXT was included for the first time, marking the first national-level guideline globally to include KarXT. The guidelines emphasize KarXT’s broad efficacy across all three symptom domains (positive, negative, and cognitive symptoms) and its unique safety profile, supporting long-term adherence and functional recovery. China’s NMPA accepted the New Drug Application (NDA) for the treatment of schizophrenia in January 2025.

•Povetacicept: In September 2025, the U.S. Food and Drug Administration (FDA) granted Breakthrough Therapy Designation (BTD) to povetacicept for the treatment of IgA nephropathy (IgAN). Subsequently, the FDA also granted a rolling review of the Biologics License Application (BLA) submission for povetacicept for this indication. Vertex has completed full enrollment of the Phase 3 study, including the interim analysis cohort for potential accelerated approval in the U.S. Zai Lab participated in the global Phase 3 RAINIER study in patients with IgAN in Greater China.

Third Quarter 2025 Financial Results

•Product revenue, net was $115.4 million in the third quarter of 2025, compared to $101.8 million for the same period in 2024, representing 13% y-o-y growth, 14% y-o-y growth at constant exchange rate (CER). This increase was primarily driven by increased sales for NUZYRA and XACDURO, partially offset by softer sales for ZEJULA:

–VYVGART and VYVGART Hytrulo were $27.7 million in the third quarter of 2025 which includes a $2.4 million reduction following a voluntary price adjustment on Hytrulo ahead of National Reimbursement Drug List (NRDL) negotiation, compared to $26.5 million in the second quarter of 2025. Sales grew 4.6% quarter over quarter driven by an extension of duration of therapy and increased market penetration.

–ZEJULA was $42.4 million in the third quarter of 2025, compared to $48.2 million for the same period in 2024. Sales were softer due to evolving competitive dynamics within the PARPi class.

–XACDURO, which was launched in the fourth quarter of 2024, was $6.4 million in the third quarter of 2025.

–NUZYRA was $15.4 million in the third quarter of 2025, compared to $10.0 million for the same period in 2024. This growth was supported by increased market coverage and penetration.

•Research and Development (R&D) expenses were $47.9 million in the third quarter of 2025, compared to $66.0 million for the same period in 2024, primarily due to a decrease in licensing fees in connection with upfront and milestone payments.

•Selling, General and Administrative expenses were $70.1 million in the third quarter of 2025, compared to $67.2 million for the same period in 2024. This increase was primarily driven by higher general selling expenses to support the growth of NUZYRA and VYVGART, partially offset by decreases in selling expenses related to ZEJULA.

•Loss from operations was $48.8 million in the third quarter of 2025, $28.0 million when adjusted to exclude certain non-cash expenses including depreciation, amortization, and share-based compensation. A reconciliation of loss from operations (GAAP) to adjusted loss from operations (non-GAAP) is included at the end of this release.

•Net loss was $36.0 million in the third quarter of 2025, or a loss per ordinary share attributable to stockholders of $0.03 (or loss per American Depositary Share (ADS) of $0.33), compared to a net loss of $41.7 million for the same period in 2024, or a loss per ordinary share of $0.04 (or loss per ADS of $0.42). These decreases in net loss were primarily due to increased product revenue and decreased operating expenses.

•Cash and cash equivalents, short-term investments, and current restricted cash totaled $817.2 million as of September 30, 2025, compared to $832.3 million as of June 30, 2025.

Anticipated Major Milestones in the Fourth Quarter of 2025 and Full Year 2026

Expected Clinical Developments and Data Readouts

Global Pipeline

Zocilurtatug Pelitecan (zoci, DLL3 ADC) (formerly ZL-1310)

•Second-Line+ ES-SCLC: Zai Lab to present updated data on intracranial activity from the ongoing Phase 1 study in the first half of 2026.

•First-Line ES-SCLC: Zai Lab to provide data readout from the Phase 1 study evaluating zoci combination therapy (with atezolizumab and/or chemotherapy) in the first half of 2026 and advance into a registrational study in 2026 based on emerging data. Zai Lab also plans to initiate a Phase 1 study to explore zoci in a novel combination in 2026.

•Other neuroendocrine carcinomas: Zai Lab to provide data readout from the global Phase 1/2 study in patients with selected solid tumors in the first half of 2026 and advance into a registrational-enabling cohort in 2026.

ZL-1503 (IL-13/IL-31R)

•Zai Lab to provide the initial data readout from the global Phase 1/1b study in healthy volunteers and participants with moderate to severe atopic dermatitis in 2026.

ZL-6201 (LRRC15 ADC)

•Zai Lab to submit an Investigational New Drug application to the FDA for a global Phase 1 study for patients with sarcoma and potentially other LRRC15-positive solid tumors in the fourth quarter of 2025.

Upcoming Potential NMPA Submissions

•Tumor Treating Fields (TTFields) in first-line pancreatic cancer in the fourth quarter of 2025

•Efgartigimod (FcRn) for prefilled syringe in generalized myasthenia gravis (gMG) and chronic inflammatory demyelinating polyneuropathy (CIDP) in the fourth quarter of 2025

Upcoming Potential NMPA Approvals

•Xanomeline-Trospium (or KarXT) (M1/M4-agonist) in schizophrenia

•Tisotumab Vedotin (Tissue Factor ADC) in recurrent or metastatic cervical cancer following progression on or after chemotherapy

•Repotrectinib (ROS1/TRK) in NTRK+ solid tumors

Regional Pipeline

Efgartigimod (FcRn)

•Ocular myasthenia gravis: Zai Lab partner argenx to provide topline results from the global Phase 3 ADAPT-OCULUS study in the first half of 2026. Zai Lab participated in the study in Greater China.

•Myositis: Zai Lab partner argenx to provide topline results from the global Phase 2/3 ALKIVIA study evaluating three myositis subsets (immune-mediated necrotizing myopathy (IMNM), anti-synthetase syndrome (ASyS) and dermatomyositis (DM)) in the second half of 2026. Zai Lab participated in the study in Greater China.

•Thyroid eye disease (TED): Zai Lab partner argenx to provide topline results from two registrational UplighTED studies in the second half of 2026. Zai Lab participated in the studies in Greater China.

Povetacicept (APRIL/BAFF)

•Primary membranous nephropathy (pMN): Zai Lab to join the global pivotal Phase 2/3 OLYMPUS study of povetacicept in pMN in Greater China in the fourth quarter of 2025.

•IgAN: Zai Lab partner Vertex will conduct an interim analysis of the global Phase 3 RAINIER study following 36 weeks of treatment. Vertex expects to submit the first module of the IgAN BLA to the FDA before the end of 2025 and plans to complete the full BLA submission in the first half of 2026 for potential accelerated approval in the U.S.

VRDN-003 (anti-IGF-1R, subcutaneous)

•Zai Lab to initiate a registrational study in TED in Greater China in the fourth quarter of 2025.

•Viridian to provide topline results from global registrational REVEAL-1 study in active TED patients in the first quarter of 2026 and global registrational REVEAL-2 study in chronic TED in the second quarter of 2026. Zai Lab, through its license agreement with Zenas, obtained a sublicense to the Viridian anti-IGF-1R antibody and is proceeding with clinical development.

Full-Year 2025 Outlook

Zai Lab is revising total revenue guidance for the full year 2025 to at least $460 million.

Conference Call and Webcast Information

Zai Lab will host a live conference call and webcast today, November 6, 2025, at 8:00 a.m. ET (9:00 p.m. HKT). Listeners may access the live webcast by visiting the Company’s website at View Source Participants must register in advance of the conference call.

Details of registration links are as follows:

•For webcast (preferred): View Source
•For dial-in: View Source

All participants must use the link provided above to complete the online registration process in advance of the conference call. Dial-in details will be in the confirmation email which the participant will receive upon registering.

A replay will be available shortly after the call and can be accessed by visiting the Company’s website.

(Press release, Zai Laboratory, NOV 6, 2025, View Source [SID1234659593])