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- Presentations include pooled post-hoc analysis of the Phase 3 ADMIRAL and COMMODORE data on post-transplant gilteritinib resumption in relapsed or refractory FLT3m+ AML - - Findings from the Phase 3 MORPHO trial in the post-transplant maintenance setting and Phase 1/2 VICEROY trial in newly diagnosed disease highlight how treatment timing, sequencing and combination approaches may influence outcomes - TOKYO, Dec. 5, 2025 /PRNewswire/ -- Astellas Pharma Inc. (TSE: 4503, President and CEO: Naoki Okamura, "Astellas") today announced that new data evaluating XOSPATA™ (gilteritinib) across FMS-like tyrosine kinase 3 mutation-positive (FLT3m+) acute myeloid leukemia (AML), including in relapsed or refractory (R/R), newly diagnosed and post-transplant maintenance settings, will be presented at the upcoming American Society of Hematology (ASH) Annual Meeting taking place from 6-9 December 2025 in Orlando, Fla. Through ongoing research with gilteritinib, Astellas is advancing the science of FLT3m+ AML and generating new evidence across the disease stages, to help improve long-term outcomes for people diagnosed with FLT3m+ AML. Highlights from Astellas at ASH 2025 will include: A pooled post-hoc analysis of the Phase 3 ADMIRAL and COMMODORE trials evaluating gilteritinib in R/R FLT3m+ AML, exploring treatment sequencing and resumption post-transplant to improve outcomes. In collaboration with the Blood and Marrow Transplant Clinical Trials Network (BMT CTN) , data from a post-hoc analysis of the Phase 3 MORPHO study examining how time from diagnosis to transplant, use of FLT3 inhibitors before transplant and use of gilteritinib post-transplant influenced outcomes in FLT3m+ AML. Results from the ongoing Phase 1/2 VICEROY study (NCT05520567) investigating triplet combination therapy approach including gilteritinib in newly diagnosed FLT3m+ AML patients ineligible for intensive chemotherapy, focused on safety, efficacy and dosing optimization. Moitreyee Chatterjee-Kishore, PhD, MBA, Head of Oncology Development, Astellas "Building on gilteritinib's foundation in treating relapsed or refractory FLT3-mutated AML - one of the most challenging forms of leukemia characterized by high rates of treatment failure and relapse - Astellas is dedicated to advancing research that provides valuable insights to inform clinical practice. This new data exemplifies our 'bench to bedside' approach, translating scientific innovation into VALUE for patients who urgently need new treatment options." Gilteritinib is a FLT3 inhibitor with demonstrated activity against FLT3-ITD, a common driver mutation that presents with a high disease burden and poor prognosis, and FLT3-tyrosine kinase domain (TKD) mutations.1 Gilteritinib is available as XOSPATA® across the world, including in the U.S., Japan, China and multiple European countries for the treatment of adult patients who have relapsed or refractory FLT3m+ AML. The ongoing, randomized, multicenter, open-label, Phase 3 PASHA study (NCT04027309) is evaluating gilteritinib versus midostaurin in combination with induction and consolidation therapy followed by one year of maintenance in patients with newly diagnosed FLT3-mutated AML eligible for intensive chemotherapy. About Gilteritinib Gilteritinib is an FMS-like tyrosine kinase 3 (FLT3) inhibitor with demonstrated activity against FLT3-ITD, a common driver mutation that presents with a high disease burden and poor prognosis, and FLT3-TKD mutations.1 It was discovered through a research collaboration with Kotobuki Pharmaceutical Co., Ltd., and Astellas has exclusive global development, commercialization and manufacturing rights to gilteritinib.2 Gilteritinib was evaluated in ADMIRAL (NCT02421939), a Phase 3, open-label, multicenter, randomized clinical trial comparing gilteritinib with prespecified salvage chemotherapy in adult patients with relapsed or refractory FLT3-mutated AML. About Acute Myeloid Leukemia (AML) Acute myeloid leukemia (AML) is an aggressive cancer that affects the bone marrow and blood, and its incidence increases with age.3,4 Of patients newly diagnosed with AML and tested for FLT3 mutations, approximately one-third have an alteration to the FLT3 gene. FLT3-ITD mutations have been associated with worsened disease-free survival and overall survival, and a higher risk of getting the disease more than once. FLT3 mutation status can change over the course of AML treatment, even after relapse.5-8 About Astellas Astellas is a global life sciences company committed to turning innovative science into VALUE for patients. We provide transformative therapies in disease areas that include oncology, ophthalmology, urology, immunology and women's health. Through our research and development programs, we are pioneering new healthcare solutions for diseases with high unmet medical need. Learn more at . Cautionary Notes In this press release, statements made with respect to current plans, estimates, strategies and beliefs and other statements that are not historical facts are forward-looking statements about the future performance of Astellas. These statements are based on management's current assumptions and beliefs in light of the information currently available to it and involve known and unknown risks and uncertainties. A number of factors could cause actual results to differ materially from those discussed in the forward-looking statements. Such factors include, but are not limited to: (i) changes in general economic conditions and in laws and regulations, relating to pharmaceutical markets, (ii) currency exchange rate fluctuations, (iii) delays in new product launches, (iv) the inability of Astellas to market existing and new products effectively, (v) the inability of Astellas to continue to effectively research and develop products accepted by customers in highly competitive markets, and (vi) infringements of Astellas' intellectual property rights by third parties. Information about pharmaceutical products (including products currently in development) which is included in this press release is not intended to constitute an advertisement or medical advice. XOSPATA (gilteritinib) U.S. Indication & Important Safety Information Indication XOSPATA is indicated for the treatment of adult patients who have relapsed or refractory acute myeloid leukemia (AML) with a FMS-like tyrosine kinase 3 (FLT3) mutation as detected by an FDA-approved test. Important Safety Information Contraindications XOSPATA is contraindicated in patients with hypersensitivity to gilteritinib or any of the excipients. Anaphylactic reactions have been observed in clinical trials. Warnings and Precautions Differentiation Syndrome (See BOXED WARNING) 3% of 319 patients treated with XOSPATA in the clinical trials experienced differentiation syndrome. Differentiation syndrome is associated with rapid proliferation and differentiation of myeloid cells and may be life-threatening or fatal if not treated. Symptoms and other clinical findings of differentiation syndrome in patients treated with XOSPATA included fever, dyspnea, pleural effusion, pericardial effusion, pulmonary edema, hypotension, rapid weight gain, peripheral edema, rash, and renal dysfunction. Some cases had concomitant acute febrile neutrophilic dermatosis. Differentiation syndrome occurred as early as 1 day and up to 82 days after XOSPATA initiation and has been observed with or without concomitant leukocytosis. If differentiation syndrome is suspected, initiate dexamethasone 10 mg IV every 12 hours (or an equivalent dose of an alternative oral or IV corticosteroid) and hemodynamic monitoring until improvement. Taper corticosteroids after resolution of symptoms and administer corticosteroids for a minimum of 3 days. Symptoms of differentiation syndrome may recur with premature discontinuation of corticosteroid treatment. If severe signs and/or symptoms persist for more than 48 hours after initiation of corticosteroids, interrupt XOSPATA until signs and symptoms are no longer severe. Posterior Reversible Encephalopathy Syndrome (PRES) 1% of 319 patients treated with XOSPATA in the clinical trials experienced posterior reversible encephalopathy syndrome (PRES) with symptoms including seizure and altered mental status. Symptoms have resolved after discontinuation of XOSPATA. A diagnosis of PRES requires confirmation by brain imaging, preferably magnetic resonance imaging (MRI). Discontinue XOSPATA in patients who develop PRES. Prolonged QT Interval XOSPATA has been associated with prolonged cardiac ventricular repolarization (QT interval). 1% of the 317 patients with a post-baseline QTc measurement on treatment with XOSPATA in the clinical trial were found to have a QTc interval greater than 500 msec and 7% of patients had an increase from baseline QTc greater than 60 msec. Perform electrocardiogram (ECG) prior to initiation of treatment with XOSPATA, on days 8 and 15 of cycle 1, and prior to the start of the next two subsequent cycles. Interrupt and reduce XOSPATA dosage in patients who have a QTcF >500 msec. Hypokalemia or hypomagnesemia may increase the QT prolongation risk. Correct hypokalemia or hypomagnesemia prior to and during XOSPATA administration. Pancreatitis 4% of 319 patients treated with XOSPATA in the clinical trials experienced pancreatitis. Evaluate patients who develop signs and symptoms of pancreatitis. Interrupt and reduce the dose of XOSPATA in patients who develop pancreatitis. Embryo-Fetal Toxicity XOSPATA can cause embryo-fetal harm when administered to a pregnant woman. Advise females of reproductive potential to use effective contraception during treatment with XOSPATA and for 6 months after the last dose of XOSPATA. Advise males with female partners of reproductive potential to use effective contraception during treatment with XOSPATA and for 4 months after the last dose of XOSPATA. Pregnant women, patients becoming pregnant while receiving XOSPATA or male patients with pregnant female partners should be apprised of the potential risk to the fetus. Adverse Reactions Fatal adverse reactions occurred in 2% of patients receiving XOSPATA. These were cardiac arrest (1%) and one case each of differentiation syndrome and pancreatitis. The most frequent (≥5%) nonhematological serious adverse reactions reported in patients were fever (13%), dyspnea (9%), renal impairment (8%), transaminase increased (6%) and noninfectious diarrhea (5%). 7% discontinued XOSPATA treatment permanently due to an adverse reaction. The most common (>1%) adverse reactions leading to discontinuation were aspartate aminotransferase increased (2%) and alanine aminotransferase increased (2%). The most frequent (≥5%) grade ≥3 nonhematological adverse reactions reported in patients were transaminase increased (21%), dyspnea (12%), hypotension (7%), mucositis (7%), myalgia/arthralgia (7%), and fatigue/malaise (6%). Other clinically significant adverse reactions occurring in ≤10% of patients included: electrocardiogram QT prolonged (9%), hypersensitivity (8%), pancreatitis (5%), cardiac failure (4%), pericardial effusion (4%), acute febrile neutrophilic dermatosis (3%), differentiation syndrome (3%), pericarditis/myocarditis (2%), large intestine perforation (1%), and posterior reversible encephalopathy syndrome (1%). Lab Abnormalities Shifts to grades 3-4 nonhematologic laboratory abnormalities in XOSPATA treated patients included phosphate decreased (14%), alanine aminotransferase increased (13%), sodium decreased (12%), aspartate aminotransferase increased (10%), calcium decreased (6%), creatine kinase increased (6%), triglycerides increased (6%), creatinine increased (3%), and alkaline phosphatase increased (2%). Drug Interactions Combined P-gp and Strong CYP3A Inducers Concomitant use of XOSPATA with a combined P-gp and strong CYP3A inducer decreases XOSPATA exposure which may decrease XOSPATA efficacy. Avoid concomitant use of XOSPATA with combined P-gp and strong CYP3A inducers. Strong CYP3A inhibitors Concomitant use of XOSPATA with a strong CYP3A inhibitor increases XOSPATA exposure. Consider alternative therapies that are not strong CYP3A inhibitors. If the concomitant use of these inhibitors is considered essential for the care of the patient, monitor patient more frequently for XOSPATA adverse reactions. Interrupt and reduce XOSPATA dosage in patients with serious or life-threatening toxicity. Drugs that Target 5HT2B Receptor or Sigma Nonspecific Receptor Concomitant use of XOSPATA may reduce the effects of drugs that target the 5HT2B receptor or the sigma nonspecific receptor (e.g., escitalopram, fluoxetine, sertraline). Avoid concomitant use of these drugs with XOSPATA unless their use is considered essential for the care of the patient. P-gp, BCRP, and OCT1 Substrates Based on in vitro data, gilteritinib is a P-gp, breast cancer resistant protein (BCRP), and organic cation transporter 1 (OCT1) inhibitor. Coadministration of gilteritinib may increase the exposure of P-gp, BCRP, and OCT1 substrates, which may increase the incidence and severity of adverse reactions of these substrates. For P-gp, BCRP, or OCT1 substrates where small concentration changes may lead to serious adverse reactions, decrease the dose or modify the dosing frequency of such substrate and monitor for adverse reactions as recommended in the respective prescribing information. Specific Populations Lactation Advise women not to breastfeed during treatment with XOSPATA and for 2 months after the last dose. Please see Full Prescribing Information, including BOXED WARNING for additional safety information. 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AGOURA HILLS, Calif., Dec. 04, 2025 (GLOBE NEWSWIRE) -- Oncotelic Therapeutics, Inc. (OTCQB: OTLC) 45% owned Joint Venture, Sapu Nano today announced new biomarker data identifying a molecular signature that predicts sensitivity to Sapu003, the company’s intravenous Deciparticle™ formulation of everolimus. These data will be presented at the 2025 San Antonio Breast Cancer Symposium (SABCS) Dec 9-12. This work describes the first prospective biomarker framework for intravenous everolimus and establishes a foundation for mTOR therapy targeted to the patient populations most likely to benefit. The analysis, which evaluated more than 9,000 patient tumor samples across 20 cancer types, revealed that tumors exhibiting a High-RICTOR / Low-RPTOR gene-expression pattern show a significantly greater dependency on mTOR signaling and are therefore, more likely to respond to potent mTOR inhibition delivered by IV Sapu003. High-RICTOR / Low-RPTOR Signature Identifies Patients Most Likely to Benefit The biomarker analysis demonstrated that: Tumors with elevated RICTOR (mTORC2 activation) and suppressed RPTOR (limited mTORC1 scaffolding) show heightened reliance on mTORC2-AKT survival signaling.These tumors exhibit increased glycolytic flux, elevated metabolic stress markers, and reduced compensatory feedback, making them vulnerable to systemically distributed everolimus.This phenotype/genotype was strongly enriched in: HR+/HER2- breast cancerLung adenocarcinomaGastric cancerRenal cell carcinomaOvarian cancerAML and T-cell malignancies Across multiple datasets, patients with this signature had significantly worse survival with standard therapy, but showed predicted sensitivity to Sapu003. Why IV Sapu003 Unlocks Biomarker-Driven mTOR Therapy Oral everolimus is limited by: Low and variable bioavailabilityHigh GI accumulationmTORC1-biased inhibitionLack of biomarker selection Sapu003 overcomes these barriers by delivering: 67× lower GI accumulationHigh tissue penetration into metabolically active tumorsUnchanged intrinsic metabolism, preserving pharmacologic specificity This enables, for the first time, biomarker-enriched patient selection for an mTOR inhibitor. Management Commentary “Up to now mTOR inhibitor therapy has lacked an empirical patient selection strategy beyond tumor type,” said Dr. Seymour Fein, Chief Medical Officer of Sapu Nano. “The High-RICTOR/Low-RPTOR signature gives us, for the first time, a molecular map of which patients are most likely to benefit. The potential for targeting a more sensitive patient population combined with the consistent pharmacokinetic profile of Sapu003 administered intravenously creates an entirely new therapeutic opportunity for mTOR-driven cancers.” About the Biomarker Discovery Approach The SABCS analysis integrated: 9,000+ TCGA and MET500 tumor transcriptomesmTOR pathway co-expression networksMetabolic clustering of glycolysis-addicted tumorsSurvival modeling across multiple cancer typesPredictive modeling of everolimus pathway dependency This systems-biology approach allowed identification of mTORC2-dominant tumors that would be poorly targeted by oral everolimus but potentially responsive to IV Sapu003. About Sapu003 Sapu003 is a novel intravenous nanoparticle formulation of everolimus engineered using Sapu Nano’s proprietary Deciparticle™ technology. It is designed to overcome the poor bioavailability, intestinal toxicity, and variable patient exposure seen with oral everolimus while enabling reliable, predictable weekly IV dosing. About the Deciparticle™ Platform The Deciparticle™ platform is a proprietary nanotechnology engineered to encapsulate hydrophobic molecules as uniform, sub-20 nm nanoparticles for intravenous administration. The platform improves systemic exposure, reduces GI deposition, and supports precision delivery while maintaining manufacturability at clinical scale. About Sapu Nano Sapu Nano is a clinical-stage biotechnology company developing Deciparticle™ nanomedicine therapeutics designed to optimize the delivery of hydrophobic oncology agents and peptide-based therapeutics. The company operates an integrated ISO-5 cGMP manufacturing facility supporting rapid progression from formulation to clinical trial supply. For more information, visit www.sapunano.com. About Oncotelic Oncotelic (f/k/a Mateon Therapeutics, Inc.), was formed in the State of New York in 1988 as OXiGENE, Inc., was reincorporated in the State of Delaware in 1992, and changed its name to Mateon Therapeutics, Inc. in 2016, and Oncotelic Therapeutics, Inc. in November 2020. Oncotelic is seeking to leverage its deep expertise in oncology drug development to improve treatment outcomes and survival of cancer patients with a special emphasis on rare pediatric cancers. Oncotelic has rare pediatric designation for Diffuse Intrinsic Pontine Glioma “DIPG” (through OT-101) through its 45% joint venture, melanoma (through CA4P), and Acute Myeloid Leukemia “AML” (through OXi 4503). Oncotelic also acquired PointR Data Inc. in November 2019. Oncotelic acquired AL-101, during the 4th quarter of 2021, for the intranasal delivery of apomorphine. We intend to develop AL-101 for the treatment of Parkinson Disease ("PD"). Over 60,000 new patients are being diagnosed with PD in the United States and currently there are over 1 million patients in the US and expected to increase to over 1.2 million by 2030. In addition, approximately 10 million suffer from this disease globally. https://www.parkinson.org/Understanding-Parkinsons/Statistics. AL-101 is also being developed for Erectile Dysfunction ("ED"). ED is the most prevalent male sexual disorder globally. The percentages of men affected by ED are as follows: 14.3-70% of men aged 60 years, 6.7-48% of men aged 70 years, and 38% of men aged 80 years (Geerkens MJM et al. (2019). Eur Urol Focus. pii: S2405-4569(19)30079-3). However, with the increasing administration of PDE5 inhibitors in clinical practice, it was found that approximately 30-35% of ED patients are treatment failures (McMahon CN et al. (2006). BMJ, 332: 589-92). AL-101 is designed to target treatment failure ED patients who do not respond to PDE5 inhibitors. Through similar mechanism of action, AL-101 is being developed for Female Sexual Dysfunction ("FSD"). Female sexual dysfunction is a prevalent problem, afflicting approximately 40% of women and there are few treatment options. FSD is more typical as women age and is a progressive and widespread condition. (Allahdadi, KJ et al. (2009) Cardiovascular & hematological agents in medicinal chemistry, 7(4), 260-269). There is no available drug for the treatment of FSD. In June 2019, the U.S. Food and Drug Administration approved Vyleesi (bremelanotide) to treat acquired, generalized hypoactive sexual desire disorder ("HSDD") in premenopausal women. This is the only available drug treatment. Vyleesi has essentially replaced the only other drug for HSDD - however, it has a long list of drug-drug interactions, including commonly used antidepressants, such as fluoxetine and sertraline. In addition, it has a black box warning regarding its use with alcohol, a combination that has been associated with hypotension and syncopal episodes. Therefore, there is an urgent need for effective therapy against FSD and HSDD. Oncotelic's Cautionary Note on Forward-Looking Statements This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934 (the “Exchange Act”) that involve substantial risks and uncertainties. We generally identify forward-looking statements by terminology such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “would,” “intend,” “target,” “aim,” “project,” “believe,” “estimate,” “predict,” “potential,” “seek,” “indicate,” or “continue” or the negative of these terms or other similar words, although not all forward-looking statements contain these words. Forward-looking statements include, but are not limited to, statements regarding our or our management’s expectations, hopes, beliefs, intentions or strategies regarding the future, such as our estimates regarding anticipated operating income or losses, future performance, future revenues and projected expense, including that to fund our clinical and other development programs; our liquidity and our expectations regarding our needs for and ability to raise additional capital; our ability to continue as a going concern; our ability to select and capitalize on commercially desirable product opportunities as a result of limited financial resources; our ability to manage our expenses effectively and raise the funds needed to continue our business; our ability to retain the services of our current or future executive officers, directors and principal consultants; the competitive nature of our industry and the possibility that our products or product candidates may become obsolete or may not generate revenues as expected or at all; our ability to obtain and maintain regulatory approval of our existing products and any future products we may develop; the development of and the process of commercializing AI/Blockchain and other technologies for supporting the development of OT- 101 and Artemisinin for COVID-19, OT-101, including development of OT-101, Artemisinin, OXi4503, CA4P and our 2021 in-licensing of apomorphine; the initiation, timing, progress and results of our preclinical and clinical trials, research and development programs; regulatory and legislative developments in the United States and foreign countries; the timing, costs and other limitations involved in obtaining regulatory approval for any product; the further preclinical or clinical development and commercialization of our product candidates; the entering into any corporate transactions to develop our products through partnerships, joint ventures or other corporate transactions; our ability to make a proposed initial public offering between us and our joint-venture partners for the joint venture, statements about future plans related to the operations of the JV, taking the JV into an initial public offering or the success thereof: building and the success of our nanoparticle platform and the related success of launching the platform; the expected valuation of the JV, and therefore a corresponding increase in the valuation of the Company, by virtue of it’s ownership in the JV; the success of the launch of Pet2DAO, a corporation with a DAO infrastructure, the success of Pet2DAO and the plans surrounding the pet and animal health, the ability for the Company to register the tokens of Pet2DAO, the actual filing of a registration statement and approval of the tokens as registrable securities with the Securities and Exchange Commission (“SEC”) through a registration statement, the ability of the tokens to be tradable or any value such tokens may have if they become tradable; our ability to obtain and maintain orphan drug exclusivity for some of our product candidates; the potential benefits of our product candidates over other therapies; our ability to enter into and maintain any collaboration with respect to product candidates; our ability to continue to develop or commercialize our products or product candidates in the event any license agreements in place with third parties expire or are terminated; the performance and conduct of third parties, including our third-party manufacturers and third party service providers used in our clinical trials; our ability to obtain and maintain intellectual property protection for our products and operate our business without infringing upon the intellectual property rights of others; the potential liability exposure related to our products and our insurance coverage for such exposure; our ability to form alliances with other third parties to develop the products in our pipeline through partnerships, joint ventures, mergers or acquisitions; the successful development of our sales and marketing capabilities; the size and growth of the potential markets for our products and our ability to serve those markets; the rate and degree of market acceptance of any future products; the volatility of the price of our common stock; the ability to achieve secondary trading of our stock in certain states; the dilutive effects of potential future equity issuances; our expectation that no dividends will be declared on our common stock in the foreseeable future; our ability to maintain an effective system of internal controls; the payment and reimbursement methods used by private or governmental third-party payers; our ability to retain adequate staffing levels; unfavorable global economic conditions; unfavorable global epidemic and pandemic conditions; a failure of our internal computer systems or those of our contractors and consultants; potential misconduct or other improper activities by our employees, contractors or consultants; the ability of our business continuity and disaster recovery plans to protect us in the event of a natural disaster; and other factors discussed elsewhere in this document or any document incorporated by reference herein or therein. Contact Information:For Oncotelic Therapeutics, Inc.:Investor Relationsir@oncotelic.com