Zimberelimab

Arcus data will be disclosed in two oral presentations at the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting Updated data, including median progression-free survival (PFS), from EDGE-Gastric evaluating domvanalimab plus zimberelimab and chemotherapy in upper GI cancers Data, including overall survival (OS) and PFS, from ARC-9 evaluating an etrumadenant plus zimberelimab-based treatment combination in third-line metastatic colorectal cancer Data from the casdatifan 100 mg expansion cohort of ARC-20, a Phase 1/1b study of casdatifan in clear cell renal cell carcinoma (ccRCC), are expected to be presented in the second half of 2024 Completion of enrollment for the Phase 3 studies STAR-221 (upper GI cancers) and STAR-121 (non-small cell lung cancer) for domvanalimab plus zimberelimab and chemotherapy is expected by mid-year and the second half of 2024, respectively Well-positioned to advance the full pipeline with $1.1 billion in cash, cash equivalents and marketable securities and runway into 2027 Conference call today at 1:30 PM PT / 4:30 PM ET HAYWARD, Calif.--(BUSINESS WIRE)-- Arcus Biosciences, Inc. (NYSE:RCUS), a clinical-stage, global biopharmaceutical company focused on developing differentiated molecules and combination therapies for people with cancer, today reported financial results for the first quarter ended March 31, 2024, and provided a pipeline update on its clinical-stage investigational molecules – targeting TIGIT, the adenosine axis (CD73 and A2a/A2b receptors), HIF-2a, AXL and PD-1 – across multiple common cancers. “Arcus has evolved to become a late-stage oncology company with multiple programs targeting lung, gastrointestinal and kidney cancers that address extremely large patient populations with high unmet need,” said Terry Rosen, Ph.D., chief executive officer of Arcus. “With two oral presentations at ASCO in GI cancers and a third dataset for our HIF-2a inhibitor expected later this year, we have several near-term catalysts that will further validate our deep pipeline of potentially first- and best-in-class molecules, which will be in at least 5 different Phase 3 studies by the first half of 2025.” Domvanalimab (Fc-silent anti-TIGIT monoclonal antibody) plus Zimberelimab (anti-PD-1 antibody) Results from Arm A1 of the Phase 2 EDGE-Gastric trial evaluating domvanalimab plus zimberelimab and chemotherapy in first-line upper GI cancers, including objective response rate (ORR), median progression-free survival (PFS) and duration of response, will be presented at the ASCO Annual Meeting in June 2024. This study is evaluating the same regimen in the same setting as the STAR-221 Phase 3 study. Two Phase 3 studies are expected to complete enrollment this year: STAR-221 evaluating domvanalimab plus zimberelimab and chemotherapy in PD-L1 all-comer first-line metastatic upper GI cancers is expected to complete enrollment by mid-year. STAR-121 evaluating domvanalimab plus zimberelimab and chemotherapy in PD-L1 all-comer first-line metastatic non-small cell lung cancer (NSCLC) is expected to complete enrollment by the second half of 2024. Casdatifan (HIF-2a inhibitor) Multiple expansion cohorts evaluating casdatifan in clear cell renal cell carcinoma (ccRCC) are underway, with several data presentations expected over the next 18 months: ARC-20: Phase 1/1b study evaluating casdatifan as a monotherapy and in combination with other agents: 100 mg daily expansion cohort in 2L+ ccRCC (n=30): ORR data with minimum follow-up of at least 7 months are expected to be presented in the second half of 2024. 50 mg and 150 mg expansion cohorts in 2L+ ccRCC (n=30 each): Enrollment has been completed for the 50 mg cohort, and enrollment in the 150 mg cohort was just initiated. Data from these cohorts are expected to be presented over the next 18 months. STELLAR-009, a Phase 1b/2 trial evaluating casdatifan plus zanzalintinib in ccRCC, is currently enrolling. Arcus intends to initiate its first Phase 3 study evaluating casdatifan in combination with a TKI in ccRCC in the first half of 2025. CD73-Adenosine Axis: Etrumadenant (A2a/A2b receptor antagonist) and Quemliclustat (small-molecule CD73 inhibitor) Data from ARC-9, a randomized Phase 1b/2 study evaluating etrumadenant plus zimberelimab, bevacizumab and chemotherapy versus regorafenib in third-line metastatic colorectal cancer (mCRC), will be presented at ASCO in June. Data from MORPHEUS-PDAC, a randomized Phase 2 study operationalized by Roche, evaluating etrumadenant plus atezolizumab plus chemotherapy versus chemotherapy in first-line metastatic pancreatic ductal adenocarcinoma (PDAC), were presented at the American Association for Cancer Research (AACR) Annual Meeting in April 2024. Median PFS of 8.2 months for the etrumadenant-containing regimen versus 6.8 months (HR = 0.67) for the chemotherapy arm. Median OS of 16.5 months for the etrumadenant-containing regimen versus 12.1 months for the chemotherapy arm. These data further validate the results observed for quemliclustat in the Phase 1/1b ARC-8 trial, which showed a 15.7-month median OS (pooled analysis) when combined with chemotherapy in 1L pancreatic cancer, well above historical benchmark data for chemotherapy alone. Initiation of a Phase 3 trial of quemliclustat combined with chemotherapy in pancreatic cancer is expected to begin by early 2025. Early Clinical Programs Dose escalation for AB801, a potent and highly selective small-molecule AXL inhibitor, continues. Arcus anticipates advancing this molecule into expansion cohorts in NSCLC in early 2025. Financial Results for First Quarter 2024: Cash, Cash Equivalents and Marketable Securities were $1.1 billion as of March 31, 2024, compared to $866 million as of December 31, 2023. The increase during the period is primarily due to the receipt of $320 million in cash from Gilead for their January 2024 equity investment, partially offset by the use of cash in research and development activities. We believe our cash, cash equivalents and marketable securities on-hand will be sufficient to fund operations into 2027. Cash, cash equivalents and marketable securities are expected to be between $870 million and $920 million at the end of 2024. Revenues were $145 million for the first quarter 2024, compared to $25 million for the same period in 2023. In the first quarter 2024, Arcus recognized $135 million in license and development services revenue related to the advancement of programs, primarily driven by a cumulative catch-up to revenue of $107 million relating to the Gilead collaboration amendments we executed in January 2024, as well as $10 million in other collaboration revenue primarily related to Gilead’s ongoing rights to access Arcus’s research and development pipeline in accordance with the Gilead collaboration agreement. Research and Development (R&D) Expenses were $109 million for the first quarter 2024, compared to $81 million for the same period in 2023. The net increase of $28 million was primarily driven by higher clinical manufacturing, clinical trial and headcount-related costs associated with our late-stage development program activities. Non-cash stock-based compensation expense was $10 million for the first quarter 2024, compared to $9 million for the same period in 2023. For the first quarter 2024 and 2023, Arcus recognized gross reimbursements of $37 million and $42 million, respectively, for shared expenses from its collaborations, primarily the Gilead collaboration. R&D expense by quarter may fluctuate due to the timing of clinical manufacturing and standard-of-care therapeutic purchases with a corresponding impact on reimbursements. General and Administrative (G&A) Expenses were $32 million for the first quarter 2024, compared to $30 million for the same period in 2023. The increase was primarily driven by compensation related to higher headcount and our 2024 stock awards, and costs incurred to obtain the Third Gilead Agreement Amendment. Non-cash stock-based compensation expense was $10 million for each of the first quarters 2024 and 2023. Impairment of Long-lived Assets was $20 million for the first quarter 2024, without similar expense for the same period in 2023. In the first quarter, we evaluated our needs for office space under our lease agreements. As a result, we now plan to sublease a portion of our facilities, resulting in a $20 million non-cash impairment charge. Net Loss was $4 million for the first quarter 2024, compared to $80 million for the same period in 2023. Conference Call Information: Arcus will host a conference call and webcast today, May 8, at 1:30 PM PT / 4:30 PM ET to discuss its first-quarter 2024 financial results and pipeline updates. To access the call, please dial (404) 975-4839 (local) or (833) 470-1428 (toll-free), using Access Code: 034427. To access the live webcast and accompanying slide presentation, please visit the “Investors & Media” section of the Arcus Biosciences website at . A replay of the webcast will be available following the live event. Arcus Ongoing and Announced Clinical Studies: Trial Name Arms Setting Status NCT No. Lung Cancer STAR-121 dom + zim + chemo vs. pembro + chemo 1L NSCLC (PD-L1 all-comers) Ongoing Registrational Phase 3 NCT05502237 PACIFIC-8 dom + durva vs. durva Unresectable Stage 3 NSCLC Ongoing Registrational Phase 3 NCT05211895 STAR-131 dom + zim + chemo; dom + zim Perioperative NSCLC Registrational Phase 3 In Planning TBD ARC-7 zim vs. dom + zim vs. etruma + dom + zim 1L NSCLC (PD-L1 ≥ 50%) Ongoing Randomized Phase 2 NCT04262856 EDGE-Lung dom +/- zim +/- quemli +/- chemo 1L/2L NSCLC (lung cancer platform study) Ongoing Randomized Phase 2 NCT05676931 VELOCITY-Lung dom +/- zim +/- etruma +/- sacituzumab govitecan-hziy or other combos 1L/2L NSCLC (lung cancer platform study) Ongoing Randomized Phase 2 NCT05633667 Upper Gastrointestinal Cancers STAR-221 dom + zim + chemo vs. nivo + chemo 1L Gastric, GEJ and EAC Ongoing Registrational Phase 3 NCT05568095 EDGE-Gastric (ARC-21) dom +/- zim +/- quemli +/- chemo 1L/2L Upper GI Malignancies Ongoing Randomized Phase 2 NCT05329766 Colorectal Cancer ARC-9 etruma + zim + mFOLFOX vs. SOC 2L/3L/3L+ CRC Ongoing Randomized Phase 2 NCT04660812 Pancreatic Cancer PRISM-1 quemli + gem/nab-pac vs. gem/nab-pac 1L PDAC Planned Phase 3 TBD ARC-8 quemli + zim + gem/nab-pac vs. quemli + gem/nab-pac 1L, 2L PDAC Ongoing Randomized Phase 1/1b NCT04104672 Kidney Cancer STELLAR-009 cas + zanza ccRCC Ongoing Phase 1b/2 NCT06191796 ARC-20 cas, cas + cabo Cancer Patients / ccRCC Ongoing Phase 1/1b NCT05536141 Other ARC-25 AB598 Advanced Malignancies Ongoing NCT05891171 ARC-27 AB801 Advanced Malignancies Ongoing NCT06120075 cabo: cabozantinib; cas: casdatifan; dom: domvanalimab; durva: durvalumab; etruma: etrumadenant; gem/nab-pac: gemcitabine/nab-paclitaxel; nivo: nivolumab; pembro: pembrolizumab; quemli: quemliclustat; SOC: standard of care; zanza: zanzalintinib; zim: zimberelimab; ccRCC: clear-cell renal cell carcinoma; CRC: colorectal cancer; EAC: esophageal adenocarcinoma; GEJ: gastroesophageal junction; GI: gastrointestinal; NSCLC: non-small cell lung cancer; PDAC: pancreatic ductal adenocarcinoma About the Gilead Collaboration In May 2020, Arcus established a 10-year collaboration with Gilead to strategically advance our portfolio. Under this collaboration, Gilead obtained time-limited exclusive option rights to all of our clinical programs arising during the collaboration term. Arcus and Gilead are co-developing four investigational products, including zimberelimab (Arcus’s anti-PD-1 molecule), domvanalimab (Arcus’s anti-TIGIT antibody), etrumadenant (Arcus’s adenosine receptor antagonist) and quemliclustat (Arcus’s CD73 inhibitor). The collaboration was expanded in November 2021 and May 2023 to include research directed to two targets for oncology and two targets for inflammatory diseases. About Arcus Biosciences Arcus Biosciences is a clinical-stage, global biopharmaceutical company developing differentiated molecules and combination medicines for people with cancer. In partnership with industry collaborators, patients and physicians around the world, Arcus is expediting the development of first- or best-in-class medicines against well-characterized biological targets and pathways and studying novel, biology-driven combinations that have the potential to help people with cancer live longer. Founded in 2015, the company has expedited the development of multiple investigational medicines into clinical studies, including new combination approaches that target TIGIT, PD-1, the adenosine axis (CD73 and dual A2a/A2b receptor), HIF-2a, CD39, and AXL. For more information about Arcus Biosciences’ clinical and preclinical programs, please visit . Domvanalimab, etrumadenant, quemliclustat, and zimberelimab are investigational molecules, and neither Gilead nor Arcus has received approval from any regulatory authority for any use globally, and their safety and efficacy have not been established. Casdatifan, AB598 and AB801 are also investigational molecules, and Arcus has not received approval from any regulatory authority for any use globally, and their safety and efficacy have not been established. Forward-Looking Statements This press release contains forward-looking statements. All statements regarding events or results to occur in the future contained herein are forward-looking statements reflecting the current beliefs and expectations of management made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to, the statements in Dr. Rosen’s quote and statements regarding: Arcus’s expectation that its cash, cash equivalents and marketable securities on-hand are sufficient to fund operations into 2027; the timing and scope of analyses, data disclosures and presentations; whether data and results from studies validate our pipeline or support further development of a program; expected timing of clinical milestones, including the completion of enrollment; the potency, efficacy or safety of Arcus’s investigational products; and the initiation of and associated timing for future studies, including statements about the number of Phase 3 studies that Arcus’s investigational products will be in by the end of the year and Arcus’s intention to initiate its first Phase 3 study evaluating casdatifan. All forward-looking statements involve known and unknown risks and uncertainties and other important factors that may cause Arcus’s actual results, performance or achievements to differ significantly from those expressed or implied by the forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to: risks associated with preliminary and interim data not being guarantees that future data will be similar; the unexpected emergence of adverse events or other undesirable side effects in Arcus’s investigational products; difficulties or delays in initiating or conducting clinical trials due to difficulties or delays in the regulatory process, enrolling subjects or manufacturing or supplying product for such clinical trials; unfavorable global economic, political and trade conditions; Arcus’s dependence on the collaboration with Gilead for the successful development and commercialization of its optioned molecules; difficulties associated with the management of the collaboration activities or expanded clinical programs; changes in the competitive landscape for Arcus’s programs; and the inherent uncertainty associated with pharmaceutical product development and clinical trials. Risks and uncertainties facing Arcus are described more fully in the “Risk Factors” section of Arcus’s most recent periodic report filed with the U.S. Securities and Exchange Commission. You are cautioned not to place undue reliance on the forward-looking statements, which speak only as of the date of this press release. Arcus disclaims any obligation or undertaking to update, supplement or revise any forward-looking statements contained in this press release except to the extent required by law. The Arcus name and logo are trademarks of Arcus Biosciences, Inc. All other trademarks belong to their respective owners. ARCUS BIOSCIENCES, INC. Consolidated Statements of Operations (unaudited) (In millions, except per share amounts) Three Months Ended March 31, 2024 2023 Revenues: License and development services revenue $ 135 $ 17 Other collaboration revenue 10 8 Total revenues 145 25 Operating expenses: Research and development 109 81 General and administrative 32 30 Impairment of long-lived assets 20 — Total operating expenses 161 111 Loss from operations (16 ) (86 ) Non-operating income (expense): Interest and other income, net 13 9 Effective interest on liability for sale of future royalties (1 ) (1 ) Total non-operating income, net 12 8 Loss before income taxes (4 ) (78 ) Income tax expense — (2 ) Net loss $ (4 ) $ (80 ) Net loss per share: Basic and diluted $ (0.05 ) $ (1.09 ) Shares used to compute net loss per share: Basic and diluted 86.2 73.0 Selected Consolidated Balance Sheet Data (unaudited) (In millions) March 31, 2024 December 31, 2023 (1) Cash, cash equivalents and marketable securities $ 1,095 $ 866 Total assets 1,293 1,095 Total liabilities 586 633 Total stockholders’ equity 707 462 (1) Derived from the audited financial statements for the quarter ended December 31, 2023, included in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 21, 2024. View source version on businesswire.com: Contacts Investor Inquiries: Pia Eaves VP of Investor Relations & Strategy (617) 459-2006 peaves@arcusbio.com Media Inquiries: Holli Kolkey VP of Corporate Communications (650) 922-1269 hkolkey@arcusbio.com Source: Arcus Biosciences View this news release online at:

Non-Small Cell Lung Cancer Development Program Data to be Presented, Including the Phase 3 EVOKE-01 Study Updated Results from Phase 2 EDGE-Gastric Study of Fc-Silent Anti-TIGIT Domvanalimab Plus Anti-PD-1 Zimberelimab, to be Presented Pilot Study Results of Yescarta® in Relapsed/Refractory Primary and Secondary Central Nervous System Lymphomas, an Area of Unmet Clinical Need, to be Presented Orally FOSTER CITY, Calif. & SANTA MONICA, Calif.--(BUSINESS WIRE)-- Gilead Sciences, Inc. (Nasdaq: GILD) and Kite, a Gilead Company, will present 18 abstracts during the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting. These data showcase the ongoing commitment to developing differentiated approaches to transform how cancer is treated and span solid tumors and blood cancers, including lung, breast, gastrointestinal, colorectal, leukemia and lymphoma. This press release features multimedia. View the full release here: New Data Provide Detail on Trodelvy in Non-Small Cell Lung Cancer (NSCLC) Gilead is presenting primary results from the global Phase 3 EVOKE-01 study of Trodelvy® (sacituzumab govitecan-hziy) versus docetaxel in patients with advanced or metastatic NSCLC that has progressed on or after platinum-based chemotherapy and checkpoint inhibitor therapy. In addition, Gilead will present longer-term results from Cohort A of the Phase 2 EVOKE-02 study of Trodelvy in combination with KEYTRUDA® (pembrolizumab) in first-line advanced or metastatic squamous/non-squamous PD-L1-high NSCLC. Gilead Highlights Progress in Gastrointestinal Pipeline An updated analysis from the Phase 2 EDGE-Gastric study will be featured as a rapid oral presentation in partnership with Arcus Biosciences. These longer-term efficacy and safety results for domvanalimab, an Fc-silent anti-TIGIT antibody, plus the anti-PD-1 antibody zimberelimab and chemotherapy, as a potential first-line treatment for upper gastrointestinal cancers follow the encouraging ORR and six-month PFS rate results from the preliminary analysis presented during the November 2023 virtual ASCO Plenary Series. Additionally, an oral presentation with our partner Arcus Biosciences will feature data from Cohort B of ARC-9, a Phase 1b/2 study evaluating the safety and efficacy of etrumadenant, a dual A2a/b adenosine receptor antagonist, plus zimberelimab, and FOLFOX/bevacizumab in third-line metastatic colorectal cancer (mCRC). Kite Showcases New Data on CAR T-cell Therapies A pilot collaborative study evaluating Yescarta® (axicabtagene ciloleucel) for the treatment of patients with relapsed/refractory (R/R) primary and secondary central nervous system lymphoma (PCNSL and SCNSL) will be presented orally. These updated data will highlight the efficacy and safety of Yescarta in this patient population with important unmet need. Additionally, updated overall survival outcomes for Tecartus® (brexucabtagene autoleucel) from the pivotal Phase 1/2 ZUMA-3 trial, now with more than four years of follow-up, will be presented. The ZUMA-3 trial is the longest follow-up in an adult-only study of a CAR T-cell therapy for R/R B-cell lymphoblastic leukemia (B-ALL). These data continue to support the long-term survival and durability of Tecartus. Summary of Presentations Accepted abstracts at the 2024 ASCO Annual Meeting include: Tumor Types Abstract Title B-cell Acute Lymphoblastic Leukemia Abstract #6531 June 3, 2024 9:00 AM – 12:00 PM CDT (Poster) Long-term Survival Outcomes of Patients (pts) with Relapsed or Refractory B-cell Acute Lymphoblastic Leukemia (R/R B-ALL) Treated with Brexucabtagene Autoleucel (brexu-cel) in ZUMA-3 Biliary Tract Cancer Abstract #TPS4195 June 1, 2024 1:30 – 4:30 PM CDT (TiP) Phase 2 Study of Gemcitabine, Cisplatin, Quemliclustat (AB680) and Zimberelimab (AB122) During First-Line Treatment of Advanced Biliary Tract Cancers (BTC) – Big Ten Cancer Research Consortium Study BTCRC-GI22-564 Breast Cancer Abstract #LBA1004 June 1, 2024 3:00-6:00 PM CDT (Oral Presentation) SACI-IO HR+: A Randomized Phase II Trial of Sacituzumab Govitecan with or without Pembrolizumab in Patients with Metastatic Hormone Receptor-positive/HER2-negative Breast Cancer* Abstract #1101 June 2, 2024 9:00 AM – 12:00 PM CDT (Poster) Prevention of Sacituzumab Govitecan (SG)-related Neutropenia and Diarrhea in Patients (pts) with Triple-negative or HR+/HER2- Advanced Breast Cancer (ABC) (PRIMED): a Phase 2 Trial** Abstract #1075 June 2, 2024 9:00 AM – 12:00 PM CDT (Poster) Genomic Alterations in DNA Damage Response (DDR) Genes in HR+/HER2- Metastatic Breast Cancer (mBC) and Impact on Clinical Efficacy with Sacituzumab Govitecan (SG): Biomarker Results from TROPiCS-02 Study Abstract #1102 June 2, 2024 9:00 AM – 12 PM CDT (Poster) Sequential Combination of Sacituzumab Govitecan and PARP Inhibitor Talazoparib in Metastatic Triple Negative Breast Cancer (mTNBC): Results from the Phase II Study Abstract #TPS1140 June 2, 2024 9:00 AM – 12 PM CDT (TiP) Trial in Progress: Phase I/II Study of Stereotactic Radiation and Sacituzumab Govitecan with Zimberelimab in the Management of Metastatic Triple Negative Breast Cancer with Brain Metastases Central Nervous System Lymphoma Abstract #2006 June 3, 2024 8:00 – 11:00 AM CDT (Oral Presentation) A Pilot Study of Axicabtagene Ciloleucel (axi-cel) for the Treatment of Relapsed/Refractory Primary and Secondary Central Nervous System Lymphoma (PCNSL and SCNSL)* Colorectal Cancer Abstract #3508 June 2, 2024 8:00 – 11:00 AM CDT (Oral Presentation) Randomized Phase 1b/2 Study to Evaluate Etrumadenant Based Treatment Combinations in Previously Treated Metastatic Colorectal Cancer (mCRC) Gastroesophageal Cancers Abstract #433248 June 1, 2024 12:30 – 1:30 PM CDT (Oral Presentation) EDGE-Gastric Arm A1: Phase 2 Study of Domvanalimab, Zimberelimab, and FOLFOX in First-Line Advanced Gastroesophageal Cancer Lung Cancer Abstract #LBA8500 May 31, 2024 2:45 – 5:45 PM CDT (Oral Presentation) Sacituzumab Govitecan (SG) vs Docetaxel (doc) in Patients (pts) with Metastatic Non-small Cell Lung Cancer (mNSCLC) Previously Treated with Platinum (PT)-based Chemotherapy (chemo) and PD(L)-1Inhibitors (IO): Primary Results from the Phase 3 EVOKE-01 Study Abstract #8592 June 3, 2024 1:30 – 4:30 PM CDT (Poster) Sacituzumab Govitecan (SG) + Pembrolizumab (pembro) in First-line (1L) Metastatic Non-small Cell Lung Cancer (mNSCLC): Results from Longer Follow-up of Cohort A of EVOKE-02 Abstract #TPS8121 June 3, 2024 1:30 – 4:30 PM CDT (TiP) VELOCITY-Lung Substudy-03: a Phase 2 Study Evaluating Safety and Efficacy of Domvanalimab (Dom) + Zimberelimab (Zim) or Zim Alone in Combination with Chemotherapy (Chemo) in the Neoadjuvant Phase and Dom+Zim or Zim Alone in the Adjuvant Phase in Patients with Resectable Stage II-III Non-small Cell Lung Cancer (NSCLC) Rare Genitourinary Tumors Abstract #TPS4627 June 2, 2024 9:00 AM – 12 PM CDT (TiP) SMART: A Phase II Study of Sacituzumab Govitecan (SG) with or without Atezolizumab Immunotherapy in Rare Genitourinary (GU) Tumors such as Small Cell, Adenocarcinoma, and Squamous Cell Bladder/Urinary Tract Cancer, Renal Medullary Carcinoma (RMC) and Penile Cancer* Solid Tumors Abstract #3029 June 1, 2024 9:00 AM – 12:00 PM CDT (Poster) Pooled Safety Analysis of Sacituzumab Govitecan (SG) in Multiple Solid Tumor Types Thyroid Cancer Abstract #TPS6130 June 2, 2024 9:00 AM – 12:00 PM CDT (TiP) Sacituzumab Govitecan in Patients with Advanced or Metastatic Radioactive-iodine Refractory Thyroid Carcinoma: The Phase 2 SETHY, GETNE-T2318 Trial Urothelial Cancer Abstract #e16500 May 23, 2024 4:00 PM CDT (Online Publication Only) Treatment Patterns of Metastatic Urothelial Cancer in the United States Abstract #TPS4618 June 2, 2024 9:00 AM – 12:00 PM CDT (TiP) Sacituzumab Govitecan (SG) plus Enfortumab Vedotin (EV) for Metastatic Urothelial Carcinoma (mUC) Treatment Experienced (DAD) and with Pembrolizumab (P) in Treatment Naïve UC (DAD-IO)** *Collaborative study with Dana-Farber Cancer Institute **Collaborative study Domvanalimab, zimberelimab and etrumadenant are investigational molecules. Neither Gilead nor Arcus has received approval from any regulatory authority for any use of these molecules, and their safety and efficacy for the treatment of gastrointestinal and lung cancers have not been established. Trodelvy has not been approved by any regulatory agency for the treatment of metastatic NSCLC. Its safety and efficacy have not been established for this indication. Trodelvy has a Boxed Warning for severe or life-threatening neutropenia and severe diarrhea; please see below for the approved U.S. Indication and additional Important Safety Information. About Trodelvy Trodelvy® (sacituzumab govitecan-hziy) is a first-in-class Trop-2-directed antibody-drug conjugate. Trop-2 is a cell surface antigen highly expressed in multiple tumor types, including in more than 90% of breast, bladder and lung cancers. Trodelvy is intentionally designed with a proprietary hydrolyzable linker attached to SN-38, a topoisomerase I inhibitor payload. This unique combination delivers potent activity to both Trop-2 expressing cells and the tumor microenvironment through a bystander effect. Trodelvy is approved in almost 50 countries, with multiple additional regulatory reviews underway worldwide, for the treatment of adult patients with unresectable locally advanced or metastatic triple-negative breast cancer (TNBC) who have received two or more prior systemic therapies, at least one of them for metastatic disease. Trodelvy is also approved to treat certain patients with pre-treated HR+/HER2- metastatic breast cancer in Australia, Brazil, Canada, the European Union, Israel, United Arab Emirates and the United States. In the U.S., Trodelvy has an accelerated approval for treatment of certain patients with second-line metastatic urothelial cancer; see below for full indication statements. Trodelvy is being explored for potential investigational use in other TNBC, HR+/HER2- and metastatic UC populations, as well as a range of tumor types where Trop-2 is highly expressed, including metastatic non-small cell lung cancer (NSCLC), head and neck cancer, gynecological cancer, and gastrointestinal cancers. U.S. Indications for Trodelvy In the United States, Trodelvy is indicated for the treatment of adult patients with: Unresectable locally advanced or metastatic triple-negative breast cancer (mTNBC) who have received two or more prior systemic therapies, at least one of them for metastatic disease. Unresectable locally advanced or metastatic hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative (IHC 0, IHC 1+ or IHC 2+/ISH–) breast cancer who have received endocrine-based therapy and at least two additional systemic therapies in the metastatic setting. Locally advanced or metastatic urothelial cancer (mUC) who have previously received a platinum-containing chemotherapy and either programmed death receptor-1 (PD-1) or programmed death-ligand 1 (PD-L1) inhibitor. This indication is approved under accelerated approval based on tumor response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials. U.S. Important Safety Information for Trodelvy BOXED WARNING: NEUTROPENIA AND DIARRHEA Severe or life-threatening neutropenia may occur. Withhold Trodelvy for absolute neutrophil count below 1500/mm3 or neutropenic fever. Monitor blood cell counts periodically during treatment. Consider G-CSF for secondary prophylaxis. Initiate anti-infective treatment in patients with febrile neutropenia without delay. Severe diarrhea may occur. Monitor patients with diarrhea and give fluid and electrolytes as needed. At the onset of diarrhea, evaluate for infectious causes and, if negative, promptly initiate loperamide. If severe diarrhea occurs, withhold Trodelvy until resolved to ≤Grade 1 and reduce subsequent doses. CONTRAINDICATIONS Severe hypersensitivity reaction to Trodelvy. WARNINGS AND PRECAUTIONS Neutropenia: Severe, life-threatening, or fatal neutropenia can occur and may require dose modification. Neutropenia occurred in 64% of patients treated with Trodelvy. Grade 3-4 neutropenia occurred in 49% of patients. Febrile neutropenia occurred in 6%. Neutropenic colitis occurred in 1.4%. Withhold Trodelvy for absolute neutrophil count below 1500/mm3 on Day 1 of any cycle or neutrophil count below 1000/mm3 on Day 8 of any cycle. Withhold Trodelvy for neutropenic fever. Administer G-CSF as clinically indicated or indicated in Table 1 of USPI. Diarrhea: Diarrhea occurred in 64% of all patients treated with Trodelvy. Grade 3-4 diarrhea occurred in 11% of patients. One patient had intestinal perforation following diarrhea. Diarrhea that led to dehydration and subsequent acute kidney injury occurred in 0.7% of all patients. Withhold Trodelvy for Grade 3-4 diarrhea and resume when resolved to ≤Grade 1. At onset, evaluate for infectious causes and if negative, promptly initiate loperamide, 4 mg initially followed by 2 mg with every episode of diarrhea for a maximum of 16 mg daily. Discontinue loperamide 12 hours after diarrhea resolves. Additional supportive measures (e.g., fluid and electrolyte substitution) may also be employed as clinically indicated. Patients who exhibit an excessive cholinergic response to treatment can receive appropriate premedication (e.g., atropine) for subsequent treatments. Hypersensitivity and Infusion-Related Reactions: Serious hypersensitivity reactions including life-threatening anaphylactic reactions have occurred with Trodelvy. Severe signs and symptoms included cardiac arrest, hypotension, wheezing, angioedema, swelling, pneumonitis, and skin reactions. Hypersensitivity reactions within 24 hours of dosing occurred in 35% of patients. Grade 3-4 hypersensitivity occurred in 2% of patients. The incidence of hypersensitivity reactions leading to permanent discontinuation of Trodelvy was 0.2%. The incidence of anaphylactic reactions was 0.2%. Pre-infusion medication is recommended. Have medications and emergency equipment to treat such reactions available for immediate use. Observe patients closely for hypersensitivity and infusion-related reactions during each infusion and for at least 30 minutes after completion of each infusion. Permanently discontinue Trodelvy for Grade 4 infusion-related reactions. Nausea and Vomiting: Nausea occurred in 64% of all patients treated with Trodelvy and Grade 3-4 nausea occurred in 3% of these patients. Vomiting occurred in 35% of patients and Grade 3-4 vomiting occurred in 2% of these patients. Premedicate with a two or three drug combination regimen (e.g., dexamethasone with either a 5-HT3 receptor antagonist or an NK1 receptor antagonist as well as other drugs as indicated) for prevention of chemotherapy-induced nausea and vomiting (CINV). Withhold Trodelvy doses for Grade 3 nausea or Grade 3-4 vomiting and resume with additional supportive measures when resolved to Grade ≤1. Additional antiemetics and other supportive measures may also be employed as clinically indicated. All patients should be given take-home medications with clear instructions for prevention and treatment of nausea and vomiting. Increased Risk of Adverse Reactions in Patients with Reduced UGT1A1 Activity: Patients homozygous for the uridine diphosphate-glucuronosyl transferase 1A1 (UGT1A1)*28 allele are at increased risk for neutropenia, febrile neutropenia, and anemia and may be at increased risk for other adverse reactions with Trodelvy. The incidence of Grade 3-4 neutropenia was 58% in patients homozygous for the UGT1A1*28, 49% in patients heterozygous for the UGT1A1*28 allele, and 43% in patients homozygous for the wild-type allele. The incidence of Grade 3-4 anemia was 21% in patients homozygous for the UGT1A1*28 allele, 10% in patients heterozygous for the UGT1A1*28 allele, and 9% in patients homozygous for the wild-type allele. Closely monitor patients with known reduced UGT1A1 activity for adverse reactions. Withhold or permanently discontinue Trodelvy based on clinical assessment of the onset, duration and severity of the observed adverse reactions in patients with evidence of acute early-onset or unusually severe adverse reactions, which may indicate reduced UGT1A1 function. Embryo-Fetal Toxicity: Based on its mechanism of action, Trodelvy can cause teratogenicity and/or embryo-fetal lethality when administered to a pregnant woman. Trodelvy contains a genotoxic component, SN-38, and targets rapidly dividing cells. Advise pregnant women and females of reproductive potential of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with Trodelvy and for 6 months after the last dose. Advise male patients with female partners of reproductive potential to use effective contraception during treatment with Trodelvy and for 3 months after the last dose. ADVERSE REACTIONS In the pooled safety population, the most common (≥ 25%) adverse reactions including laboratory abnormalities were decreased leukocyte count (84%), decreased neutrophil count (75%), decreased hemoglobin (69%), diarrhea (64%), nausea (64%), decreased lymphocyte count (63%), fatigue (51%), alopecia (45%), constipation (37%), increased glucose (37%), decreased albumin (35%), vomiting (35%), decreased appetite (30%), decreased creatinine clearance (28%), increased alkaline phosphatase (28%), decreased magnesium (27%), decreased potassium (26%), and decreased sodium (26%). In the ASCENT study (locally advanced or metastatic triple-negative breast cancer), the most common adverse reactions (incidence ≥25%) were fatigue, diarrhea, nausea, alopecia, constipation, vomiting, abdominal pain, and decreased appetite. The most frequent serious adverse reactions (SAR) (>1%) were neutropenia (7%), diarrhea (4%), and pneumonia (3%). SAR were reported in 27% of patients, and 5% discontinued therapy due to adverse reactions. The most common Grade 3-4 lab abnormalities (incidence ≥25%) in the ASCENT study were reduced neutrophils, leukocytes, and lymphocytes. In the TROPiCS-02 study (locally advanced or metastatic HR-positive, HER2-negative breast cancer), the most common adverse reactions (incidence ≥25%) were diarrhea, fatigue, nausea, alopecia, and constipation. The most frequent serious adverse reactions (SAR) (>1%) were diarrhea (5%), febrile neutropenia (4%), neutropenia (3%), abdominal pain, colitis, neutropenic colitis, pneumonia, and vomiting (each 2%). SAR were reported in 28% of patients, and 6% discontinued therapy due to adverse reactions. The most common Grade 3-4 lab abnormalities (incidence ≥25%) in the TROPiCS-02 study were reduced neutrophils and leukocytes. In the TROPHY study (locally advanced or metastatic urothelial cancer), the most common adverse reactions (incidence ≥25%) were diarrhea, fatigue, nausea, any infection, alopecia, decreased appetite, constipation, vomiting, rash, and abdominal pain. The most frequent serious adverse reactions (SAR) (≥5%) were infection (18%), neutropenia (12%, including febrile neutropenia in 10%), acute kidney injury (6%), urinary tract infection (6%), and sepsis or bacteremia (5%). SAR were reported in 44% of patients, and 10% discontinued due to adverse reactions. The most common Grade 3-4 lab abnormalities (incidence ≥25%) in the TROPHY study were reduced neutrophils, leukocytes, and lymphocytes. DRUG INTERACTIONS UGT1A1 Inhibitors: Concomitant administration of Trodelvy with inhibitors of UGT1A1 may increase the incidence of adverse reactions due to potential increase in systemic exposure to SN-38. Avoid administering UGT1A1 inhibitors with Trodelvy. UGT1A1 Inducers: Exposure to SN-38 may be reduced in patients concomitantly receiving UGT1A1 enzyme inducers. Avoid administering UGT1A1 inducers with Trodelvy. Please see full Prescribing Information, including BOXED WARNING. About Tecartus Please see full FDA Prescribing Information, including BOXED WARNING and Medication Guide. Tecartus is a CD19-directed genetically modified autologous T cell immunotherapy indicated for the treatment of: Adult patients with relapsed or refractory mantle cell lymphoma (MCL). This indication is approved under accelerated approval based on overall response rate and durability of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial. Adult patients with relapsed or refractory B-cell precursor acute lymphoblastic leukemia (ALL). U.S. IMPORTANT SAFETY INFORMATION BOXED WARNING: CYTOKINE RELEASE SYNDROME, NEUROLOGIC TOXICITIES, and SECONDARY HEMATOLOGICAL MALIGNANCIES Cytokine Release Syndrome (CRS), including life-threatening reactions, occurred in patients receiving Tecartus. Do not administer Tecartus to patients with active infection or inflammatory disorders. Treat severe or life-threatening CRS with tocilizumab or tocilizumab and corticosteroids. Neurologic toxicities, including life-threatening reactions, occurred in patients receiving Tecartus, including concurrently with CRS or after CRS resolution. Monitor for neurologic toxicities after treatment with Tecartus. Provide supportive care and/or corticosteroids as needed. T-cell malignancies have occurred following treatment of hematologic malignancies with BCMA- and CD19-directed genetically modified autologous T-cell immunotherapies. Tecartus is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the Yescarta and Tecartus REMS Program. Ensure that a minimum of two doses of tocilizumab are available for each patient prior to infusion of Tecartus. Following infusion, monitor patients for signs and symptoms of CRS daily for at least seven days at the certified healthcare facility, and for four weeks thereafter. Counsel patients to seek immediate medical attention should signs or symptoms of CRS occur at any time. At the first sign of CRS, institute treatment with supportive care, tocilizumab, or tocilizumab and corticosteroids as indicated. Neurologic Events, including those that were fatal or life-threatening, occurred following treatment with Tecartus. Neurologic events occurred in 87% (68/78) of patients with ALL, including ≥ Grade 3 in 35% of patients. The median time to onset for neurologic events was seven days (range: 1 to 51 days) with a median duration of 15 days (range: 1 to 397 days) in patients with ALL. For patients with MCL, 54 (66%) patients experienced CRS before the onset of neurological events. Five (6%) patients did not experience CRS with neurologic events and eight patients (10%) developed neurological events after the resolution of CRS. Neurologic events resolved for 119 out of 134 (89%) patients treated with Tecartus. Nine patients (three patients with MCL and six patients with ALL) had ongoing neurologic events at the time of death. For patients with ALL, neurologic events occurred before, during, and after CRS in 4 (5%), 57 (73%), and 8 (10%) of patients; respectively. Three patients (4%) had neurologic events without CRS. The onset of neurologic events can be concurrent with CRS, following resolution of CRS or in the absence of CRS. The most common neurologic events (>10%) were similar in MCL and ALL and included encephalopathy (57%), headache (37%), tremor (34%), confusional state (26%), aphasia (23%), delirium (17%), dizziness (15%), anxiety (14%), and agitation (12%). Serious events including encephalopathy, aphasia, confusional state, and seizures occurred after treatment with Tecartus. Monitor patients daily for at least seven days for patients with MCL and at least 14 days for patients with ALL at the certified healthcare facility and for four weeks following infusion for signs and symptoms of neurologic toxicities and treat promptly. REMS Program: Because of the risk of CRS and neurologic toxicities, Tecartus is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the Yescarta and Tecartus REMS Program which requires that: Healthcare facilities that dispense and administer Tecartus must be enrolled and comply with the REMS requirements. Certified healthcare facilities must have on-site, immediate access to tocilizumab, and ensure that a minimum of two doses of tocilizumab are available for each patient for infusion within two hours after Tecartus infusion, if needed for treatment of CRS. Certified healthcare facilities must ensure that healthcare providers who prescribe, dispense, or administer Tecartus are trained in the management of CRS and neurologic toxicities. Further information is available at or 1-844-454-KITE (5483). Hypersensitivity Reactions: Serious hypersensitivity reactions, including anaphylaxis, may occur due to dimethyl sulfoxide (DMSO) or residual gentamicin in Tecartus. Severe Infections: Severe or life-threatening infections occurred in patients after Tecartus infusion. Infections (all grades) occurred in 56% (46/82) of patients with MCL and 44% (34/78) of patients with ALL. Grade 3 or higher infections, including bacterial, viral, and fungal infections, occurred in 30% of patients with ALL and MCL. Tecartus should not be administered to patients with clinically significant active systemic infections. Monitor patients for signs and symptoms of infection before and after Tecartus infusion and treat appropriately. Administer prophylactic antimicrobials according to local guidelines. Febrile neutropenia was observed in 6% of patients with MCL and 35% of patients with ALL after Tecartus infusion and may be concurrent with CRS. The febrile neutropenia in 27 (35%) of patients with ALL includes events of “febrile neutropenia” (11 (14%)) plus the concurrent events of “fever” and “neutropenia” (16 (21%)). In the event of febrile neutropenia, evaluate for infection and manage with broad spectrum antibiotics, fluids, and other supportive care as medically indicated. In immunosuppressed patients, life-threatening and fatal opportunistic infections have been reported. The possibility of rare infectious etiologies (e.g., fungal and viral infections such as HHV-6 and progressive multifocal leukoencephalopathy) should be considered in patients with neurologic events and appropriate diagnostic evaluations should be performed. Hepatitis B virus (HBV) reactivation, in some cases resulting in fulminant hepatitis, hepatic failure, and death, can occur in patients treated with drugs directed against B cells. Perform screening for HBV, HCV, and HIV in accordance with clinical guidelines before collection of cells for manufacturing. Prolonged Cytopenias: Patients may exhibit cytopenias for several weeks following lymphodepleting chemotherapy and Tecartus infusion. In patients with MCL, Grade 3 or higher cytopenias not resolved by Day 30 following Tecartus infusion occurred in 55% (45/82) of patients and included thrombocytopenia (38%), neutropenia (37%), and anemia (17%). In patients with ALL who were responders to Tecartus treatment, Grade 3 or higher cytopenias not resolved by Day 30 following Tecartus infusion occurred in 20% (7/35) of the patients and included neutropenia (12%) and thrombocytopenia (12%); Grade 3 or higher cytopenias not resolved by Day 60 following Tecartus infusion occurred in 11% (4/35) of the patients and included neutropenia (9%) and thrombocytopenia (6%). Monitor blood counts after Tecartus infusion. Hypogammaglobulinemia: B cell aplasia and hypogammaglobulinemia can occur in patients receiving treatment with Tecartus. Hypogammaglobulinemia was reported in 16% (13/82) of patients with MCL and 9% (7/78) of patients with ALL. Monitor immunoglobulin levels after treatment with Tecartus and manage using infection precautions, antibiotic prophylaxis, and immunoglobulin replacement. The safety of immunization with live viral vaccines during or following Tecartus treatment has not been studied. Vaccination with live virus vaccines is not recommended for at least six weeks prior to the start of lymphodepleting chemotherapy, during Tecartus treatment, and until immune recovery following treatment with Tecartus. Secondary Malignancies: Patients treated with TECARTUS may develop secondary malignancies. T-cell malignancies have occurred following treatment of hematologic malignancies with BCMA- and CD19-directed genetically modified autologous T-cell immunotherapies. Mature T-cell malignancies, including CAR-positive tumors, may present as soon as weeks following infusions, and may include fatal outcomes. Monitor life-long for secondary malignancies. In the event that a secondary malignancy occurs, contact Kite at 1-844-454-KITE (5483) to obtain instructions on patient samples to collect for testing. Effects on Ability to Drive and Use Machines: Due to the potential for neurologic events, including altered mental status or seizures, patients are at risk for altered or decreased consciousness or coordination in the 8 weeks following Tecartus infusion. Advise patients to refrain from driving and engaging in hazardous activities, such as operating heavy or potentially dangerous machinery, during this period. Adverse Reactions: The most common non-laboratory adverse reactions (≥ 20%) were fever, cytokine release syndrome, hypotension, encephalopathy, tachycardia, nausea, chills, headache, fatigue, febrile neutropenia, diarrhea, musculoskeletal pain, hypoxia, rash, edema, tremor, infection with pathogen unspecified, constipation, decreased appetite, and vomiting. The most common serious adverse reactions (≥ 2%) were cytokine release syndrome, febrile neutropenia, hypotension, encephalopathy, fever, infection with pathogen unspecified, hypoxia, tachycardia, bacterial infections, respiratory failure, seizure, diarrhea, dyspnea, fungal infections, viral infections, coagulopathy, delirium, fatigue, hemophagocytic lymphohistiocytosis, musculoskeletal pain, edema, and paraparesis. Please see full Prescribing Information, including BOXED WARNING and Medication Guide. About Yescarta Please see full US Prescribing Information, including BOXED WARNING and Medication Guide. YESCARTA is a CD19-directed genetically modified autologous T cell immunotherapy indicated for the treatment of: Adult patients with large B-cell lymphoma that is refractory to first-line chemoimmunotherapy or that relapses within 12 months of first-line chemoimmunotherapy. Adult patients with relapsed or refractory large B-cell lymphoma after two or more lines of systemic therapy, including diffuse large B-cell lymphoma (DLBCL) not otherwise specified, primary mediastinal large B-cell lymphoma, high-grade B-cell lymphoma, and DLBCL arising from follicular lymphoma. Limitations of Use: YESCARTA is not indicated for the treatment of patients with primary central nervous system lymphoma. Adult patients with relapsed or refractory follicular lymphoma (FL) after two or more lines of systemic therapy. This indication is approved under accelerated approval based on the response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in the confirmatory trial(s). U.S. IMPORTANT SAFETY INFORMATION BOXED WARNING: CYTOKINE RELEASE SYNDROME, NEUROLOGIC TOXICITIES, and SECONDARY HEMATOLOGICAL MALIGNANCIES Cytokine Release Syndrome (CRS), including fatal or life-threatening reactions, occurred in patients receiving YESCARTA. Do not administer YESCARTA to patients with active infection or inflammatory disorders. Treat severe or life-threatening CRS with tocilizumab or tocilizumab and corticosteroids. Neurologic toxicities, including fatal or life-threatening reactions, occurred in patients receiving YESCARTA, including concurrently with CRS or after CRS resolution. Monitor for neurologic toxicities after treatment with YESCARTA. Provide supportive care and/or corticosteroids as needed. T-cell malignancies have occurred following treatment of hematologic malignancies with BCMA-and CD19-directed genetically modified autologous T cell immunotherapies, including YESCARTA. YESCARTA is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the YESCARTA and TECARTUS REMS Program. CYTOKINE RELEASE SYNDROME (CRS) CRS, including fatal or life-threatening reactions, occurred following treatment with YESCARTA. CRS occurred in 90% (379/422) of patients with non-Hodgkin lymphoma (NHL), including ≥ Grade 3 CRS in 9%. CRS occurred in 93% (256/276) of patients with large B-cell lymphoma (LBCL), including ≥ Grade 3 in 9%. Among patients with LBCL who died after receiving YESCARTA, 4 had ongoing CRS events at the time of death. For patients with LBCL in ZUMA-1, the median time to onset of CRS was 2 days following infusion (range: 1-12 days) and the median duration was 7 days (range: 2-58 days). For patients with LBCL in ZUMA-7, the median time to onset of CRS was 3 days following infusion (range: 1-10 days) and the median duration was 7 days (range: 2-43 days). CRS occurred in 84% (123/146) of patients with indolent non-Hodgkin lymphoma (iNHL) in ZUMA-5, including ≥ Grade 3 CRS in 8%. Among patients with iNHL who died after receiving YESCARTA, 1 patient had an ongoing CRS event at the time of death. The median time to onset of CRS was 4 days (range: 1-20 days) and median duration was 6 days (range: 1-27 days) for patients with iNHL. Key manifestations of CRS (≥ 10%) in all patients combined included fever (85%), hypotension (40%), tachycardia (32%), chills (22%), hypoxia (20%), headache (15%), and fatigue (12%). Serious events that may be associated with CRS include, cardiac arrhythmias (including atrial fibrillation and ventricular tachycardia), renal insufficiency, cardiac failure, respiratory failure, cardiac arrest, capillary leak syndrome, multi-organ failure, and hemophagocytic lymphohistiocytosis/macrophage activation syndrome. The impact of tocilizumab and/or corticosteroids on the incidence and severity of CRS was assessed in 2 subsequent cohorts of LBCL patients in ZUMA-1. Among patients who received tocilizumab and/or corticosteroids for ongoing Grade 1 events, CRS occurred in 93% (38/41), including 2% (1/41) with Grade 3 CRS; no patients experienced a Grade 4 or 5 event. The median time to onset of CRS was 2 days (range: 1-8 days) and the median duration of CRS was 7 days (range: 2-16 days). Prophylactic treatment with corticosteroids was administered to a cohort of 39 patients for 3 days beginning on the day of infusion of YESCARTA. Thirty-one of the 39 patients (79%) developed CRS and were managed with tocilizumab and/or therapeutic doses of corticosteroids with no patients developing ≥ Grade 3 CRS. The median time to onset of CRS was 5 days (range: 1-15 days) and the median duration of CRS was 4 days (range: 1-10 days). Although there is no known mechanistic explanation, consider the risk and benefits of prophylactic corticosteroids in the context of pre-existing comorbidities for the individual patient and the potential for the risk of Grade 4 and prolonged neurologic toxicities. Ensure that 2 doses of tocilizumab are available prior to YESCARTA infusion. Monitor patients for signs and symptoms of CRS at least daily for 7 days at the certified healthcare facility, and for 4 weeks thereafter. Counsel patients to seek immediate medical attention should signs or symptoms of CRS occur at any time. At the first sign of CRS, institute treatment with supportive care, tocilizumab, or tocilizumab and corticosteroids as indicated. NEUROLOGIC TOXICITIES Neurologic toxicities (including immune effector cell-associated neurotoxicity syndrome) that were fatal or life-threatening occurred. Neurologic toxicities occurred in 78% (330/422) of all patients with NHL receiving YESCARTA, including ≥ Grade 3 in 25%. Neurologic toxicities occurred in 87% (94/108) of patients with LBCL in ZUMA-1, including ≥ Grade 3 in 31% and in 74% (124/168) of patients in ZUMA-7 including ≥ Grade 3 in 25%. The median time to onset was 4 days (range: 1-43 days) and the median duration was 17 days for patients with LBCL in ZUMA-1. The median time to onset for neurologic toxicity was 5 days (range:1- 133 days) and the median duration was 15 days in patients with LBCL in ZUMA-7. Neurologic toxicities occurred in 77% (112/146) of patients with iNHL, including ≥ Grade 3 in 21%. The median time to onset was 6 days (range: 1-79 days) and the median duration was 16 days. Ninety-eight percent of all neurologic toxicities in patients with LBCL and 99% of all neurologic toxicities in patients with iNHL occurred within the first 8 weeks of YESCARTA infusion. Neurologic toxicities occurred within the first 7 days of infusion for 87% of affected patients with LBCL and 74% of affected patients with iNHL. The most common neurologic toxicities (≥ 10%) in all patients combined included encephalopathy (50%), headache (43%), tremor (29%), dizziness (21%), aphasia (17%), delirium (15%), and insomnia (10%). Prolonged encephalopathy lasting up to 173 days was noted. Serious events, including aphasia, leukoencephalopathy, dysarthria, lethargy, and seizures occurred. Fatal and serious cases of cerebral edema and encephalopathy, including late-onset encephalopathy, have occurred. The impact of tocilizumab and/or corticosteroids on the incidence and severity of neurologic toxicities was assessed in 2 subsequent cohorts of LBCL patients in ZUMA-1. Among patients who received corticosteroids at the onset of Grade 1 toxicities, neurologic toxicities occurred in 78% (32/41), and 20% (8/41) had Grade 3 neurologic toxicities; no patients experienced a Grade 4 or 5 event. The median time to onset of neurologic toxicities was 6 days (range: 1-93 days) with a median duration of 8 days (range: 1-144 days). Prophylactic treatment with corticosteroids was administered to a cohort of 39 patients for 3 days beginning on the day of infusion of YESCARTA. Of those patients, 85% (33/39) developed neurologic toxicities, 8% (3/39) developed Grade 3, and 5% (2/39) developed Grade 4 neurologic toxicities. The median time to onset of neurologic toxicities was 6 days (range: 1-274 days) with a median duration of 12 days (range: 1-107 days). Prophylactic corticosteroids for management of CRS and neurologic toxicities may result in a higher grade of neurologic toxicities or prolongation of neurologic toxicities, delay the onset of and decrease the duration of CRS. Monitor patients for signs and symptoms of neurologic toxicities at least daily for 7 days at the certified healthcare facility, and for 4 weeks thereafter, and treat promptly. REMS Because of the risk of CRS and neurologic toxicities, YESCARTA is available only through a restricted program called the YESCARTA and TECARTUS REMS Program which requires that: Healthcare facilities that dispense and administer YESCARTA must be enrolled and comply with the REMS requirements and must have on-site, immediate access to a minimum of 2 doses of tocilizumab for each patient for infusion within 2 hours after YESCARTA infusion, if needed for treatment of CRS. Certified healthcare facilities must ensure that healthcare providers who prescribe, dispense, or administer YESCARTA are trained in the management of CRS and neurologic toxicities. Further information is available at or 1-844-454-KITE (5483). HYPERSENSITIVITY REACTIONS Allergic reactions, including serious hypersensitivity reactions or anaphylaxis, may occur with the infusion of YESCARTA. SERIOUS INFECTIONS Severe or life-threatening infections occurred. Infections (all grades) occurred in 45% of patients with NHL; ≥ Grade 3 infections occurred in 17% of patients, including ≥ Grade 3 infections with an unspecified pathogen in 12%, bacterial infections in 5%, viral infections in 3%, and fungal infections in 1%. YESCARTA should not be administered to patients with clinically significant active systemic infections. Monitor patients for signs and symptoms of infection before and after infusion and treat appropriately. Administer prophylactic antimicrobials according to local guidelines. Febrile neutropenia was observed in 36% of all patients with NHL and may be concurrent with CRS. In the event of febrile neutropenia, evaluate for infection and manage with broad-spectrum antibiotics, fluids, and other supportive care as medically indicated. In immunosuppressed patients, including those who have received YESCARTA, life-threatening and fatal opportunistic infections including disseminated fungal infections (e.g., candida sepsis and aspergillus infections) and viral reactivation (e.g., human herpes virus-6 [HHV-6] encephalitis and JC virus progressive multifocal leukoencephalopathy [PML]) have been reported. The possibility of HHV-6 encephalitis and PML should be considered in immunosuppressed patients with neurologic events and appropriate diagnostic evaluations should be performed. Hepatitis B virus (HBV) reactivation, in some cases resulting in fulminant hepatitis, hepatic failure, and death, can occur in patients treated with drugs directed against B cells, including YESCARTA. Perform screening for HBV, HCV, and HIV in accordance with clinical guidelines before collection of cells for manufacturing. PROLONGED CYTOPENIAS Patients may exhibit cytopenias for several weeks following lymphodepleting chemotherapy and YESCARTA infusion. ≥ Grade 3 cytopenias not resolved by Day 30 following YESCARTA infusion occurred in 39% of all patients with NHL and included neutropenia (33%), thrombocytopenia (13%), and anemia (8%). Monitor blood counts after infusion. HYPOGAMMAGLOBULINEMIA B-cell aplasia and hypogammaglobulinemia can occur. Hypogammaglobulinemia was reported as an adverse reaction in 14% of all patients with NHL. Monitor immunoglobulin levels after treatment and manage using infection precautions, antibiotic prophylaxis, and immunoglobulin replacement. The safety of immunization with live viral vaccines during or following YESCARTA treatment has not been studied. Vaccination with live virus vaccines is not recommended for at least 6 weeks prior to the start of lymphodepleting chemotherapy, during YESCARTA treatment, and until immune recovery following treatment. SECONDARY MALIGNANCIES Patients treated with YESCARTA may develop secondary malignancies. T-cell malignancies have occurred following treatment of hematologic malignancies with BCMA- and CD19-directed genetically modified autologous T-cell immunotherapies, including YESCARTA. Mature T-cell malignancies, including CAR-positive tumors, may present as soon as weeks following infusion, and may include fatal outcomes. Monitor life-long for secondary malignancies. In the event that a secondary malignancy occurs, contact Kite at 1-844-454-KITE (5483) to obtain instructions on patient samples to collect for testing. EFFECTS ON ABILITY TO DRIVE AND USE MACHINES Due to the potential for neurologic events, including altered mental status or seizures, patients are at risk for altered or decreased consciousness or coordination in the 8 weeks following YESCARTA infusion. Advise patients to refrain from driving and engaging in hazardous occupations or activities, such as operating heavy or potentially dangerous machinery, during this initial period. ADVERSE REACTIONS The most common non-laboratory adverse reactions (incidence ≥ 20%) in patients with LBCL in ZUMA-7 included fever, CRS, fatigue, hypotension, encephalopathy, tachycardia, diarrhea, headache, musculoskeletal pain, nausea, febrile neutropenia, chills, cough, infection with an unspecified pathogen, dizziness, tremor, decreased appetite, edema, hypoxia, abdominal pain, aphasia, constipation, and vomiting. The most common adverse reactions (incidence ≥ 20%) in patients with LBCL in ZUMA-1 included CRS, fever, hypotension, encephalopathy, tachycardia, fatigue, headache, decreased appetite, chills, diarrhea, febrile neutropenia, infections with an unspecified, nausea, hypoxia, tremor, cough, vomiting, dizziness, constipation, and cardiac arrhythmias. The most common non-laboratory adverse reactions (incidence ≥ 20%) in patients with iNHL in ZUMA-5 included fever, CRS, hypotension, encephalopathy, fatigue, headache, infections with an unspecified, tachycardia, febrile neutropenia, musculoskeletal pain, nausea, tremor, chills, diarrhea, constipation, decreased appetite, cough, vomiting, hypoxia, arrhythmia, and dizziness. About Domvanalimab Domvanalimab is the first and most clinically advanced Fc-silent investigational monoclonal antibody that is specifically designed with Fc-silent properties to block and bind to the T-cell immunoreceptor with Ig and ITIM domains (TIGIT), a checkpoint receptor on immune cells that acts as a brake on the anticancer immune response. By binding to TIGIT with Fc-silent properties, domvanalimab is believed to work by freeing up immune-activating pathways and activate immune cells to attack and kill cancer cells without depleting the peripheral regulatory T cells important in avoiding immune-related toxicity. Combined inhibition of both TIGIT and programmed cell death protein-1 (PD-1) is believed to significantly enhance immune cell activation, as these checkpoint receptors play distinct, complementary roles in anti-tumor activity. Domvanalimab is being evaluated in combination with anti-PD-1 monoclonal antibodies, including zimberelimab, as well as other investigational cancer immunotherapies and A2a/A2b adenosine receptor antagonist etrumadenant, in multiple ongoing and planned early and late-stage clinical studies in various tumor types. About Zimberelimab Zimberelimab is an anti-programmed cell death protein-1 (PD-1) monoclonal antibody that binds PD-1, with the goal of restoring the antitumor activity of T cells. Zimberelimab has demonstrated high affinity, selectivity and potency in various tumor types. Zimberelimab is being evaluated in the U.S. and globally as a foundational PD-1 treatment option in multiple ongoing and planned early and late-stage clinical studies in combination with other immunotherapies, including investigational Fc-silent anti-TIGIT monoclonal antibody domvanalimab and A2a/A2b adenosine receptor antagonist etrumadenant. Guangzhou Gloria Biosciences Co. Ltd., who holds commercialization rights for zimberelimab in greater China, has obtained approval for zimberelimab for the treatment of recurrent or metastatic cervical cancer and for relapsed or refractory classical Hodgkin's lymphoma. Zimberelimab is not approved for any use in the U.S. or other regions outside of China. Gloria conducts its development and commercialization activities independent of Arcus and Gilead. About Etrumadenant Etrumadenant is an investigational small molecule, selective dual antagonist of the A2a and A2b receptors designed to prevent adenosine-mediated immunosuppression. Adenosine elicits its immunosuppressive effects within the tumor microenvironment by binding and activating adenosine-specific receptors expressed on the surface of tumor-infiltrating immune cells, which can help cancer cells evade host antitumor immunity. Once etrumadenant binds to the A2a and A2b receptors and blocks the immunosuppressive effects of adenosine, activation of antitumor immune cells may be restored, which could result in tumor cell death. Etrumadenant is being evaluated in combination with other cancer immunotherapies, including the investigational Fc-silent anti-TIGIT monoclonal antibody domvanalimab and PD-1 inhibitor zimberelimab, in certain types of non-small cell lung and colorectal cancers. About Gilead Sciences Gilead Sciences, Inc. is a biopharmaceutical company that has pursued and achieved breakthroughs in medicine for more than three decades, with the goal of creating a healthier world for all people. The company is committed to advancing innovative medicines to prevent and treat life-threatening diseases, including HIV, viral hepatitis, COVID-19, and cancer. Gilead operates in more than 35 countries worldwide, with headquarters in Foster City, California. About Kite Kite, a Gilead Company, is a global biopharmaceutical company based in Santa Monica, California, focused on cell therapy to treat and potentially cure cancer. As the global cell therapy leader, Kite has treated more patients with CAR T-cell therapy than any other company. Kite has the largest in-house cell therapy manufacturing network in the world, spanning process development, vector manufacturing, clinical trial supply and commercial product manufacturing. Forward-Looking Statements This press release includes forward-looking statements, within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks, uncertainties and other factors, including the ability of Gilead and Kite to initiate, progress or complete clinical trials within currently anticipated timelines or at all, and the possibility of unfavorable results from ongoing or additional clinical studies, including those involving Tecartus, Trodelvy, Yescarta, domvanalimab, etrumadenant, and zimberelimab; uncertainties relating to regulatory applications and related filing and approval timelines, including pending or potential applications for indications currently under evaluation; the possibility that Gilead and Kite may make a strategic decision to discontinue development of these programs and, as a result, these programs may never be successfully commercialized for the indications currently under evaluation; and any assumptions underlying any of the foregoing. These and other risks are described in detail in Gilead’s Annual Report on Form 10-K for the year ended December 31, 2023, as filed with the U.S. Securities and Exchange Commission. These risks, uncertainties and other factors could cause actual results to differ materially from those referred to in the forward-looking statements. All statements other than statements of historical fact are statements that could be deemed forward-looking statements. The reader is cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, and is cautioned not to place undue reliance on these forward-looking statements. All forward-looking statements are based on information currently available to Gilead and Kite, and Gilead and Kite assume no obligation and disclaim any intent to update any such forward-looking statements. Trodelvy, Yescarta, Tecartus, Gilead, the Gilead logo, Kite and the Kite logo are trademarks of Gilead Sciences, Inc., or its related companies. For more information about Gilead, please visit the company’s website at , follow Gilead on Twitter (@GileadSciences) or call Gilead Public Affairs at 1-800-GILEAD-5 or 1-650-574-3000. For more information on Kite, please visit the company’s website at . Follow Kite on social media on Twitter (@KitePharma) and LinkedIn. View source version on businesswire.com: Contacts Jacquie Ross, Investors investor_relations@gilead.com Meaghan Smith, Media public_affairs@gilead.com Anna Padula, Kite Media apadula@kitepharma.com Source: Gilead Sciences, Inc. View this news release online at: