Germ Cell and Embryonal Neoplasms

BOSTON, Oct. 31, 2024 /PRNewswire/ -- In a remarkable development for cancer research, patients with advanced-stage cancer have benefited from SUPLEXA, a personalized treatment that trains the patient's own immune cells to fight cancer. "Cancer often gains the upper hand by suppressing the immune system. Our approach flips the script: we isolate immune cells from this suppressive environment, we reactivate their inherent cancer-fighting abilities in a laboratory, and return them back to the patient", said Dr Frank Borriello, Founder and CEO of Boston-based Alloplex Biotherapeutics[1]. While the science behind SUPLEXA is sophisticated, the process for patients and clinicians is surprisingly straight-forward. A single 50 mL blood draw from the patient is all it takes to develop a complete course of SUPLEXA therapy. With nothing more than standard lab equipment, the patient's white blood cells are isolated and 'trained' outside the body (ex vivo) using Alloplex's proprietary ENLIST immune cell training technology. About a month later, the enhanced blood cells are infused into the patient, where they not only seek out and destroy rogue cancer cells — that had, until then, evaded the immune system — but improve the overall immune health of the patient. Full results of the first-in-human trial[2] will be released at the 2024 SITC conference in November. The Australian study showed no treatment-related serious adverse events — unsurprising, given that SUPLEXA is made from the patients' own immune cells that have simply undergone a training process to improve their functionality before being reintroduced to the patient. Remarkably, and in addition to its strong safety profile, SUPLEXA transformed the lives of patients with various cancer types. Its most striking results were observed in patients with a specific type of advanced colorectal cancer (CRC) and renal cell carcinoma (RCC). Three CRC patients derived significant clinical benefit: one achieved a complete response (CR), another a partial response (PR) and another stable disease (SD). "Many of these patients sustained a strong clinical response for up to two years," said Dr. Borriello. Of the ten RCC patients, one achieved a partial response (PR) and six achieved stable disease (SD) while only 3 had progressive disease (PD). Patients with other solid tumors, including melanoma, breast and lung cancer, also demonstrated long-term SD with SUPLEXA. While quality of life assessments were not formally captured in this study, patients reported improvements in their well-being, a reduction in pain and improved symptom control. For the participating patients who had exhausted all standard treatment options, "SUPLEXA has been a remarkable experience," said Principal Investigator, Assoc. Professor Rohit Joshi[3], who led the first-in-human study across three sites in Australia[4]. "It's also allowed them to continue with their normal lives, have a vacation, take up new hobbies and spend more time with family and friends," said Assoc. Prof. Rohit Joshi. FDA Opens Door to Proceed With encouragement from the FDA to proceed with an Investigational New Drug (IND) submission, Alloplex Biotherapeutics plans to initiate Phase 2 clinical trials of SUPLEXA in early 2025. The trial will combine SUPLEXA with immune checkpoint inhibitors (ICIs) in patients with a specific type of colorectal cancer. The goal is to test, in a controlled clinical setting, whether SUPLEXA's complementary mechanisms can enhance patient outcomes by amplifying the effectiveness of ICIs, which are the standard of care for this type of cancer. Notes: Alloplex Biotherapeutics is a private Boston-based company founded in 2016 with a singular focus on developing its ENLIST immune cell training platform for cancer. SUPLEXA cells represent the first candidate to emerge from this platform that harnesses and amplifies the innate capabilities of the immune system, Full clinical and scientific results of the trial will be presented at the Society for Immunotherapy of Cancer 'SITC' meeting in Houston, Texas in early November 2024. Abstracts #378 and #678 will be presented in the Immune Engineering Workshop and at the Annual Meeting. Assoc. Professor Rohit Joshi, MBBS, MD, FRACP, FACP, FRCP, is a highly published and renowned medical oncology consultant. He is an Associate Professor at the University of South Australia and University of Adelaide; and Director of Cancer Research SA ('CRSA'). The company's first-in-human clinical trial enrolled 35 patients with a variety of advanced cancer types. It was an open label, single-agent, basket study across three clinical sites in Australia and concluded in June 2024. The three sites in Australia where the SUPLEXA trial was carried out are: (1) Cancer Research SA ('CRSA') in Adelaide, South Australia; (2) Southern Oncology Research United ('SOCRU') in Adelaide, South Australia, and (3) Greenslopes Private Hospital / Gallipoli Medical Research Foundation, in Brisbane, Queensland. Full Media Kit: An extensive library of backgrounders, Q&As, images (including headshots) and videos is available at Media Contact Email: [email protected] Logo - WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

Celltrion USA has expanded access to ZYMFENTRA ® (infliximab-dyyb), the first and only FDA-approved subcutaneous (SC) infliximab, to a significant share of the U.S. market The availability of ZYMFENTRA will support greater patient access and choice while helping to drive greater affordability to patients and health care systems JERSEY CITY, N.J., Oct. 31, 2024 /PRNewswire/ -- Celltrion USA announced today that, through continued partnership with key PBMs and health plans, the company has expanded access to ZYMFENTRA ® (infliximab-dyyb), the first and only U.S. Food and Drug Administration (FDA)-approved subcutaneous infliximab. With these partnerships Celltrion has now secured comprehensive access across the US health care system. ZYMFENTRA has attained access to a significant share of the U.S. market, providing an increase in availability to patients and prescribers. This achievement reflects unmet needs of patients, providers and payers, as well as Celltrion USA's ability to deliver on our strong heritage of supply, manufacturing and commitment to biologics. "Our extensive engagement with PBMs and health plans from the outset have led to the comprehensive expanded access for ZYMFENTRA in a short time frame," said Thomas Nusbickel, Celltrion USA Chief Commercial Officer (CCO). "This achievement underscores ZYMFENTRA's unique and innovative therapeutic advantages, and we look forward to expanding our outreach to deliver its treatment benefits to as many patients in the U.S. as possible." ZYMFENTRA was approved by the FDA in October 2023 through the Biologics License Application (BLA) under the 351 (a) pathway of the Public Health Service Act (a "stand-alone" BLA). ZYMFENTRA is the first FDA-approved subcutaneous infliximab for the treatment of moderately to severely active ulcerative colitis and moderately to severely active Crohn's disease. About Celltrion USA Celltrion USA is Celltrion's U.S. subsidiary established in 2018. Headquartered in New Jersey, Celltrion USA is committed to expanding access to innovative biologics to improve care for U.S. patients. Celltrion currently has five biosimilars approved by the U.S. FDA: INFLECTRA® (infliximab-dyyb), TRUXIMA® (rituximab-abbs), HERZUMA® (trastuzumab-pkrb), VEGZELMA® (bevacizumab-adcd), and YUFLYMA®(adalimumab-aaty) as well as a novel biologic ZYMFENTRA®. Celltrion USA will continue to leverage Celltrion's unique heritage in biotechnology, supply chain excellence, and best-in-class sales capabilities to improve access to high-quality biopharmaceuticals for U.S. patients. For more information, please visit: . About ZYMFENTRA® (infliximab-dyyb) [1] ZYMFENTRA is a prescription medicine used as an injection under the skin (subcutaneous injection) by adults for the maintenance treatment of: moderately to severely active ulcerative colitis following treatment with an infliximab product given by intravenous infusion (IV), moderately to severely active Crohn's disease following treatment with an infliximab product given by intravenous infusion (IV). ZYMFENTRA blocks the action of tumor necrosis factor-alpha (TNF-alpha), a protein that can be overproduced in response to certain diseases and cause the immune system to attack normal, healthy parts of the body. ZYMFENTRA® (infliximab-dyyb) was approved by the FDA through the Biologics License Application (BLA) under the 351 (a) pathway of the Public Health Service Act (a "stand-alone" BLA). ZYMFENTRA is considered a new biologic with a first-approved subcutaneous administration form and thus will be under patent protection for its dosage form by 2037 and for its route of administration by 2040. Indication and Important Safety Information ZYMFENTRA is a prescription medicine indicated in adults for maintenance treatment of: Moderately to severely active Crohn's disease following treatment with an infliximab product administered intravenously. Moderately to severely active ulcerative colitis following treatment with an infliximab product administered intravenously. It is not known if ZYMFENTRA is safe and effective in children under 18 years of age. What is the most important information I should know about ZYMFENTRA? SERIOUS INFECTIONS Patients treated with ZYMFENTRA are at increased risk for developing serious infections involving various organ systems and sites that may lead to hospitalization or death. Discontinue ZYMFENTRA if a patient develops a serious infection or sepsis. Reported infections include: Active tuberculosis (TB), including reactivation of latent TB. Patients frequently presented with disseminated or extrapulmonary disease. Patients should be tested for latent TB before and during treatment with ZYMFENTRA. Treatment for latent infection should be initiated prior to treatment with ZYMFENTRA. Invasive fungal infections, including histoplasmosis, coccidioidomycosis, candidiasis, aspergillosis, blastomycosis, and pneumocystosis. Patients may present with disseminated, rather than localized, disease. Empiric anti-fungal therapy should be considered in patients at risk for invasive fungal infections who develop severe systemic illness. Bacterial, viral, and other infections due to opportunistic pathogens, including Legionella and Listeria. The risks and benefits of treatment with ZYMFENTRA should be carefully considered prior to initiating therapy in patients with chronic or recurrent infection. Closely monitor patients for the development of signs and symptoms of infection during and after treatment with ZYMFENTRA, including the possible development of TB in patients who tested negative for latent TB infection prior to initiating therapy. Risk of infection may be higher in patients greater than 65 years of age, patients with comorbid conditions and/or patients taking concomitant immunosuppressant therapy. In clinical trials, other serious infections observed in patients treated with infliximab included arthritis bacterial, pneumonia, and urinary tract infection. MALIGNANCIES Malignancies, some fatal, have been reported in children, adolescents, and young adults treated with TNF blockers, including infliximab products. Approximately half of these cases were lymphomas, including Hodgkin's and non-Hodgkin's lymphoma. The other cases represented a variety of malignancies, including rare malignancies that are usually associated with immunosuppression and malignancies that are not usually observed in children and adolescents. The malignancies occurred after a median of 30 months after the first dose of therapy. Most of the patients were receiving concomitant immunosuppressants. Post-marketing cases of hepatosplenic T-cell lymphoma, a rare type of T-cell lymphoma, have been reported in patients treated with TNF blockers, including infliximab products. These cases have had a very aggressive disease course and have been fatal. The majority of reported cases have occurred in patients with Crohn's disease or ulcerative colitis, and most were in adolescent and young adult males. Almost all of these patients had received treatment with azathioprine or 6-mercaptopurine concomitantly with a TNF blocker at or prior to diagnosis. Carefully assess the risks and benefits of treatment with ZYMFENTRA, especially in these patient types. In clinical trials of all TNF blockers, more cases of malignancies were observed compared with controls and the expected rate in the general population. In clinical trials of some TNF blockers, including infliximab products, more cases of other malignancies were observed compared with controls. As the potential role of TNF blocker therapy in the development of malignancies is not known, caution should be exercised when considering treatment of patients with a current or a past history of malignancy. Melanoma and Merkel cell carcinoma have been reported in patients treated with TNF blocker therapy, including infliximab products. Periodic skin examination is recommended for all patients, particularly those with risk factors for skin cancer. CONTRAINDICATIONS ZYMFENTRA is contraindicated in patients with a previous severe hypersensitivity reaction to infliximab-dyyb, other infliximab products, any of the inactive ingredients of ZYMFENTRA or any murine proteins (severe hypersensitivity reactions have included anaphylaxis, hypotension, and serum sickness). HEPATITIS B VIRUS REACTIVATION TNF blockers, including infliximab products, have been associated with reactivation of hepatitis B virus (HBV) in patients who are chronic carriers. Some cases were fatal. Patients should be tested for HBV infection before initiating ZYMFENTRA. For patients who test positive, consult a physician with expertise in the treatment of hepatitis B. Exercise caution when prescribing ZYMFENTRA for patients identified as carriers of HBV, and monitor closely for active HBV infection during and following termination of therapy with ZYMFENTRA. Discontinue ZYMFENTRA in patients who develop HBV reactivation and initiate antiviral therapy with appropriate supportive treatment. Exercise caution when considering resumption of ZYMFENTRA, and monitor patients closely. HEPATOTOXICITY Hepatobiliary disorders, including acute liver failure, jaundice abnormal hepatic function, hepatic steatosis, hepatitis, hepatotoxicity, hyperbilirubinemia, and non-alcoholic fatty liver, have been reported in patients receiving infliximab products post-marketing. Some cases were fatal or required liver transplant. Aminotransferase elevations were not noted prior to discovery of liver injury in many cases. Patients with symptoms or signs of liver dysfunction should be evaluated for evidence of liver injury. If jaundice and/or marked liver enzyme elevations (eg, ≥5 times the upper limit of normal) develop, ZYMFENTRA should be discontinued, and a thorough investigation of the abnormality should be undertaken. CONGESTIVE HEART FAILURE Cases of worsening congestive heart failure (CHF) and new onset CHF have been reported with TNF blockers. Some cases had a fatal outcome. In several exploratory trials of other TNF blockers in the treatment of CHF, there were greater proportions of TNF-blocker-treated patients who had CHF exacerbations requiring hospitalization or increased mortality. ZYMFENTRA has not been studied in patients with a history of CHF and ZYMFENTRA should be used with caution in patients with CHF. HEMATOLOGIC REACTION Cases of leukopenia, neutropenia, thrombocytopenia, and pancytopenia (some fatal) have been reported. The causal relationship to infliximab-product therapy remains unclear. Exercise caution in patients who have ongoing or a history of significant hematologic abnormalities. Advise patients to seek immediate medical attention if they develop signs and symptoms of blood dyscrasias or infection. Consider discontinuation of ZYMFENTRA in patients who develop significant hematologic abnormalities. HYPERSENSITIVITY AND OTHER ADMINISTRATION REACTIONS In post-marketing experience, serious systemic hypersensitivity reactions (including anaphylaxis, hypotension, and serum sickness) have been reported following administration of infliximab products. If an anaphylactic or other clinically significant hypersensitivity reaction occurs, institute appropriate therapy and discontinue ZYMFENTRA. INJECTION SITE REACTIONS In clinical studies, localized injection-site reactions were reported following administration of ZYMFENTRA. If a clinically significant injection-site reaction occurs, institute appropriate therapy and discontinue ZYMFENTRA. NEUROLOGIC REACTIONS Agents that inhibit TNF have been associated with central nervous system (CNS) manifestation of systemic vasculitis, seizure, and new onset or exacerbation of CNS demyelinating disorders, including multiple sclerosis and optic neuritis, and peripheral demyelinating disorders, including Guillain-Barré syndrome. Exercise caution when considering ZYMFENTRA in patients with these disorders and consider discontinuation if these disorders develop. RISK OF INFECTION WITH CONCURRENT ADMINISTRATION OF OTHER BIOLOGICS PRODUCTS Serious infections and neutropenia have been reported with concurrent use of ZYMFENTRA with other immunosuppressive biological products. The concurrent use of ZYMFENTRA with other immunosuppressive biological products used to treat UC and CD may increase the risk of infection and is not recommended. RISK OF ADDITIVE IMMUNOSUPPRESSIVE EFFECTS FROM PRIOR BIOLOGICAL PRODUCTS Consider the half-life and mode of action of prior biological products to avoid unintended additive immunosuppressive effects when initiating ZYMFENTRA. AUTOIMMUNITY Treatment with TNF blockers may result in the formation of autoantibodies and in the development of a lupus-like syndrome. Discontinue ZYMFENTRA treatment if symptoms of a lupus-like syndrome develop. VACCINATIONS AND USE OF LIVE VACCINES/THERAPEUTIC INFECTIOUS AGENTS Prior to initiating ZYMFENTRA, update vaccinations in accordance with current vaccination guidelines. Live vaccines or therapeutic infectious agents should not be given with ZYMFENTRA due to the possibility of clinical infections, including disseminated infections. At least a 6-month waiting period following birth is recommended before the administration of any live vaccine to infants exposed in utero to ZYMFENTRA. ADVERSE REACTIONS In clinical trials with ZYMFENTRA, the most common adverse reactions occurring in ≥3% of ZYMFENTRA -treated patients included site reactions, COVID-19, anemia, arthralgia, infection site reaction, increased alanine aminotransferase and abdominal pain for UC, and COVID-19, headache, upper respiratory tract infection, injection site reaction, diarrhea, increased blood creatine phosphokinase, arthralgia, increased alanine aminotransferase, hypertension, urinary tract infection, neutropenia, dizziness and leukopenia for CD. Please click for Full U.S. Prescribing Information. Globally, prescribing information varies; refer to the individual country product label for complete information. For further information please contact: Celltrion Global PR Team [email protected] SOURCE Celltrion USA WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

Achieved $20.1 million in OJEMDATM (tovorafenib) net product revenue Ended the third quarter with $558.4 million in cash, cash equivalents and short-term investments Company to host conference call and webcast today, October 30, 4:30 p.m. Eastern Time BRISBANE, Calif., Oct. 30, 2024 (GLOBE NEWSWIRE) -- Day One Biopharmaceuticals, Inc. (Nasdaq: DAWN) (“Day One” or the “Company”), a biopharmaceutical company dedicated to developing and commercializing targeted therapies for people of all ages with life-threatening diseases, today announced its third quarter 2024 financial results and highlighted recent corporate achievements. “Our third quarter results demonstrate continued patient demand for OJEMDA, driven by the need for new therapies for children living with pediatric low-grade glioma,” said Jeremy Bender, Ph.D., chief executive officer of Day One. “Looking ahead to 2025, we plan to continue to drive growth by advancing our programs and pipeline, including DAY301, a potential first-in-class ADC targeting PTK7 that we expect to be in the clinic in the coming months.” Program Highlights Strong growth in OJEMDA net revenue with $20.1M in the third quarter of 2024, representing a 145% increase over the second quarter of 2024.Quarterly prescriptions (TRx) grew to 619 in the third quarter of 2024, representing a 159% increase over the second quarter of 2024.Day One expects to dose the first patient in the Phase 1a portion of the Phase 1a/b clinical trial of DAY301 by the end of 2024 or in the first quarter of 2025.Day One provided updated duration of response data from the registrational Phase 2 FIREFLY-1 trial investigating tovorafenib in patients with BRAF-altered, relapsed or progressive pLGG. For the 77 patients enrolled on Arm 1, which was the dataset used to assess OJEMDA’s efficacy, the median duration of response is 18 months.The pivotal Phase 3 FIREFLY-2/LOGGIC clinical trial evaluating tovorafenib as a front-line therapy in patients aged 6 months to 25 years with pLGG continues to enroll patients in the United States, Canada, Europe, Australia and Asia, with more than 100 sites activated. Corporate Highlights and Upcoming Milestones Day One and Ipsen entered into an exclusive licensing agreement to commercialize tovorafenib outside of the U.S. in July 2024. Under the agreement, Day One received approximately $111 million upfront in cash and equity investment at a premium with up to approximately $350 million in additional launch and sales milestone payments as well as tiered double-digit royalties starting at mid-teens percentage on net sales.Day One entered into a definitive agreement for an oversubscribed private placement of its securities for total gross proceeds of approximately $175 million in July 2024. Third Quarter 2024 Financial Highlights Product Revenue, Net: OJEMDA net product revenues were $20.1 million for the third quarter of 2024, the first full quarter of the U.S. launch.License Revenue: License revenue from the sale of ex-U.S. commercial rights for tovorafenib was $73.7 million for the third quarter of 2024.R&D Expenses: Research and development expenses were $33.6 million for the third quarter of 2024 compared to $33.2 million for the third quarter of 2023. The increase was primarily due to the clinical trial activities related to tovorafenib and additional employee compensation costs.SG&A Expenses: Selling, general and administrative expenses were $29.0 million for the third quarter of 2024 compared to $18.3 million for the third quarter of 2023. The increase was primarily due to employee compensation costs, commercial launch activities, and professional service expenses to support the launch of OJEMDA.Net Income/Loss: Net income totaled $37.0 million for the third quarter of 2024 with non-cash stock-based compensation expense of $11.6 million, compared to a net loss of $46.2 million for the third quarter of 2023, with non-cash stock-based compensation expense of $9.6 million.Cash Position: The Company’s cash, cash equivalents and short-term investments totaled $558.4 million as of September 30, 2024. Upcoming Events Two posters on health-related quality of life and drug holiday from the registrational Phase 2 FIREFLY-1 trial investigating tovorafenib in patients with BRAF-altered, relapsed or progressive pLGG will be presented at the Society for Neuro-Oncology Annual Meeting on November 22, 2024.Piper Sandler 36th Annual Healthcare Conference, December 3-5, 2024. Conference Call Day One will host a conference call and webcast today, October 30 at 4:30 p.m. Eastern Time. To access the live conference call by phone, dial 877-704-4453 (domestic) or 201-389-0920 (international), and provide the access code 13745150. Live audio webcast will be accessible from the Day One Investors & Media page. To ensure a timely connection to the webcast, it is recommended that participants register at least 15 minutes prior to the scheduled start time. An archived version of the webcast will be available for replay on the Events & Presentations section of the Day One Investors & Media page for 30 days following the event. About OJEMDA™OJEMDA (tovorafenib) is a Type II RAF kinase inhibitor of mutant BRAF V600, wild-type BRAF, and wild-type CRAF kinases. OJEMDA is indicated for the treatment of patients 6 months of age and older with relapsed or refractory pediatric low-grade glioma (LGG) harboring a BRAF fusion or rearrangement, or BRAF V600 mutation. This indication is approved under accelerated approval based on response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial(s). Tovorafenib was granted Breakthrough Therapy and Rare Pediatric Disease designations by the FDA for the treatment of patients with pLGG harboring an activating RAF alteration, and it was evaluated by the FDA under priority review. Tovorafenib has also received Orphan Drug designation from the FDA for the treatment of malignant glioma and from the European Commission for the treatment of glioma. For more information, please visit www.ojemda.com. About Day One Biopharmaceuticals Day One Biopharmaceuticals believes when it comes to pediatric cancer, we can do better. The Company was founded to address a critical unmet need: the dire lack of therapeutic development in pediatric cancer. Inspired by “The Day One Talk” that physicians have with patients and their families about an initial cancer diagnosis and treatment plan, Day One aims to re-envision cancer drug development and redefine what’s possible for all people living with cancer—regardless of age—starting from Day One. Day One partners with leading clinical oncologists, families, and scientists to identify, acquire, and develop important targeted cancer treatments. The Company’s pipeline includes tovorafenib (OJEMDA™), DAY301 and a VRK1 inhibitor program. Day One is based in Brisbane, California. For more information, please visit www.dayonebio.com or find the Company on LinkedIn or X. Day One uses its Investor Relations website (ir.dayonebio.com), its X handle (x.com/DayOneBio), and LinkedIn Home Page (linkedin.com/company/dayonebio) as a means of disseminating or providing notification of, among other things, news or announcements regarding its business or financial performance, investor events, press releases, and earnings releases, and as a means of disclosing material nonpublic information and for complying with its disclosure obligations under Regulation FD. Cautionary Note Regarding Forward-Looking StatementsThis press release contains “forward-looking” statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, including, but not limited to: Day One’s plans to develop and commercialize cancer therapies, expectations from current and planned clinical trials, the execution of the Phase 2 and Phase 3 clinical trial for tovorafenib as designed, expectations with respect to the timing of Day One’s Phase 1a/b clinical trial of DAY301, any expectations about safety, efficacy, timing and ability to complete clinical trials, release data results and to obtain regulatory approvals for tovorafenib and other candidates in development, and the ability of tovorafenib to treat pLGG or related indications. Statements including words such as “believe,” “plan,” “continue,” “expect,” “will,” “develop,” “signal,” “potential,” or “ongoing” and statements in the future tense are forward-looking statements. These forward-looking statements involve risks and uncertainties, as well as assumptions, which, if they do not fully materialize or prove incorrect, could cause our results to differ materially from those expressed or implied by such forward-looking statements. Forward-looking statements are subject to risks and uncertainties that may cause Day One’s actual activities or results to differ significantly from those expressed in any forward-looking statement, including risks and uncertainties in this press release and other risks set forth in our filings with the Securities and Exchange Commission, including Day One’s ability to develop, obtain and retain regulatory approval for or commercialize any product candidate, Day One’s ability to protect intellectual property, the potential impact of global business or macroeconomic conditions, including as a result of inflation, rising interest rates, instability in the global banking system, geopolitical conflicts and the sufficiency of Day One’s cash, cash equivalents and investments to fund its operations. These forward-looking statements speak only as of the date hereof and Day One specifically disclaims any obligation to update these forward-looking statements or reasons why actual results might differ, whether as a result of new information, future events or otherwise, except as required by law. Day One Biopharmaceuticals, Inc.Condensed Statements of Operations(in thousands, except share and per share amounts)(unaudited) Three Months EndedSeptember 30, Nine Months EndedSeptember 30, 2024 2023 2024 2023 Revenue: Product revenue, net$20,070 $— $28,262 $— License revenue 73,691 — 73,691 — Total revenues 93,761 — 101,953 — Cost and operating expenses: Cost of product revenue 1,590 — 2,297 — Research and development 33,563 33,163 165,879 93,173 Selling, general and administrative 28,972 18,275 85,715 53,374 Total cost and operating expenses 64,125 51,438 253,891 146,547 Income (loss) from operations 29,636 (51,438) (151,938) (146,547)Non-operating income: Gain from sale of priority review voucher — — 108,000 — Investment income, net 5,322 5,291 13,649 12,163 Other income (expense), net 1,197 (3) 1,177 (22)Total non-operating income, net 6,519 5,288 122,826 12,141 Income (loss) before income taxes 36,155 (46,150) (29,112) (134,406)Income tax benefit (expense) 882 — (670) — Net income (loss) 37,037 (46,150) (29,782) (134,406)Net income (loss) per share - basic$0.38 $(0.54) $(0.33) $(1.73)Net income (loss) per share - diluted$0.38 $(0.54) $(0.33) $(1.73)Weighted-average number of common shares used in net income (loss) per share - basic 96,623,123 85,952,501 90,164,895 77,682,237 Weighted-average number of common shares used in net income (loss) per share - diluted 96,937,759 85,952,501 90,164,895 77,682,237 Day One Biopharmaceuticals, Inc.Selected Condensed Balance Sheet Data(in thousands)(unaudited) September 30,2024 December 31,2023Cash, cash equivalents and short-term investments$558,383 $366,347 Total assets 600,807 376,048 Total liabilities 45,344 29,508 Accumulated deficit (488,367) (458,585)Total stockholders’ equity 555,463 346,540 DAY ONE MEDIALaura Cooper, Head of Communications media@dayonebio.com DAY ONE INVESTORSLifeSci Advisors, PJ Kelleherpkelleher@lifesciadvisors.com