Gemcitabine

Phase III NAPOLI 3 trial is the largest and has the longest follow-up for an interventional study in metastatic pancreatic adenocarcinoma1 Post-hoc analysis of NAPOLI 3 study determined characteristics associated with long-term survival, with median overall survival of 19.5 months amongst long-term survivors receiving Onivyde® plus oxaliplatin, fluorouracil and leucovorin (NALIRIFOX) regimen as a first-line therapy2 Dose reductions and/or treatment delays for the management of adverse events enabled patients to stay on treatment longer and achieve high cumulative doses of liposomal irinotecan and oxaliplatin2 PARIS, France, 31 May 2025 – Late-breaking (LBA4175) post-hoc analysis data from the Phase III NAPOLI 3 study were presented today at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting. These results found a median overall survival (mOS) of 19.5 months among long-term survivors (n=15) with metastatic pancreatic adenocarcinoma (mPDAC) treated with the Onivyde® (irinotecan liposome injection) plus oxaliplatin, fluorouracil and leucovorin (NALIRIFOX) regimen as a first-line treatment (n=120), with younger age at diagnosis, and certain tumor and metastasis locations associated with long-term survivorship.2 Pancreatic adenocarcinoma (PDAC) is the most common type of cancer that forms in the pancreas, with more than 60,000 people diagnosed annually in the U.S. and nearly 500,000 people globally.3,4 It is often detected after the disease has spread to other parts of the body (metastatic or stage IV)5 and fewer than 20% of people diagnosed with metastatic pancreatic adenocarcinoma (mPDAC) survive longer than one year.5,6 Overall, pancreatic cancer has the lowest five-year survival rate of all cancer types globally and in the U.S.5,6 “When people are diagnosed with metastatic pancreatic adenocarcinoma, the most important question remains: how long will they have with their loved ones,” said Dr. Vincent Chung, Medical Oncologist, City of Hope. “Findings from the NAPOLI 3 post-hoc analysis provide important context on long-term overall survival with the Onivyde (NALIRIFOX) treatment regimen.” The analysis included patients who survived for 18 months or longer (N=15), with findings showing long-term survivors living with mPDAC had a mOS of 19.5 months (interquartile range [IQR]: 18.8–22.6).2 Clinical and pathological factors of long-term survivors included younger than average age at time of diagnosis (median age 61.0 (IQR: 49.0–70.5) as well as tumor location.2 Fewer patients had tumors in the head or tail of the pancreas (53.3% had the main pancreatic tumor located in the body of the pancreas), a substantial proportion had liver metastasis (66.7%) and ≥3 metastatic sites (53.3%).2 Additionally, findings indicate dose reduction and treatment delays resulted in prolonged exposure and higher cumulative doses of the Onivyde (NALIRIFOX) regimen.1 Liver metastasis and ≥3 metastatic sites, dose modifications and an otherwise good clinical profile enabled people to achieve a long mOS.2 Consideration should be taken when interpreting these results as a post-hoc analysis with a small sample size. "Data from the Phase III NAPOLI 3 trial were the first positive data of its kind in a decade and continue to reinforce the potential for long-term outcomes with the Onviyde (NALIRIFOX) regimen,” said Sandra Silvestri, MD, PhD, Executive Vice President, Chief Medical Officer, Ipsen. “With people on average living just 4-6 months following diagnosis with pancreatic adenocarcinoma, these data help us to understand the characteristics associated with long-term survival seen in the NAPOLI trial, an important advancement for this difficult-to-treat cancer where data of this kind are scarce.” ENDS About Onivyde (irinotecan liposome injection)Onivyde is a long-circulating liposomal topoisomerase inhibitor. In Onivyde, irinotecan is enclosed in tiny fat particles called liposomes which accumulate in the tumor and release slowly over time. Onivyde is administered via intravenous infusion over 90 minutes every two weeks with recommendations on dosing modifications. Onivyde, as part of the NALIRIFOX regimen (combined with oxaliplatin, fluorouracil (FU) and leucovorin (LV)), is for people living with mPDAC who are treatment naïve or used in combination with FU and LV following gemcitabine-based therapy. Onivyde is not indicated as a single agent for the treatment of adult patients with metastatic pancreatic adenocarcinoma. Ipsen has exclusive commercialization rights for the current and potential future indications for Onivyde in the U.S. Servier, an independent international pharmaceutical company governed by a foundation and with an international presence in 140 countries, is responsible for the commercialization of Onivyde outside of the U.S., Taiwan and Canada. PharmaEngine is a commercial stage oncology company headquartered in Taipei and is responsible for the commercialization of Onivyde in Taiwan. About NAPOLI 3 Study NAPOLI 3 is a randomized, open-label Phase III trial of an Onivyde treatment regimen (NALIRIFOX) in treatment-naïve mPDAC. NAPOLI 3 enrolled 770 patients across 187 trial site locations in 18 countries across Europe, North America, South America, Asia, and Australia. Patients were randomized to receive Onivyde plus oxaliplatin, fluorouracil and leucovorin (NALIRIFOX regimen; n=383) twice in a month (days 1 and 15 of 28-day cycle) compared to an injection of nab-paclitaxel and gemcitabine (n=387) administered three times a month (days 1, 8, 15 of a 28-day cycle). About Ipsen We are a global biopharmaceutical company with a focus on bringing transformative medicines to patients in three therapeutic areas: Oncology, Rare Disease and Neuroscience. Our pipeline is fueled by external innovation and supported by nearly 100 years of development experience and global hubs in the U.S., France and the U.K. Our teams in more than 40 countries and our partnerships around the world enable us to bring medicines to patients in more than 100 countries. Ipsen is listed in Paris (Euronext: IPN) and in the U.S. through a Sponsored Level I American Depositary Receipt program (ADR: IPSEY). For more information, visit ipsen.com. Ipsen Media contacts Investors Khalid Deojee | +33 666019526 | khalid.deojee@ipsen.com Media Sally Bain | +1 8573200517 | sally.bain@ipsen.comAnne Liontas | +33 0767347296 | anne.liontas.ext@ipsen.com Disclaimers and/or Forward-Looking StatementsThe forward-looking statements, objectives and targets contained herein are based on Ipsen’s management strategy, current views and assumptions. Such statements involve known and unknown risks and uncertainties that may cause actual results, performance or events to differ materially from those anticipated herein. All of the above risks could affect Ipsen’s future ability to achieve its financial targets, which were set assuming reasonable macroeconomic conditions based on the information available today. Use of the words ‘believes’, ‘anticipates’ and ‘expects’ and similar expressions are intended to identify forward-looking statements, including Ipsen’s expectations regarding future events, including regulatory filings and determinations. Moreover, the targets described in this document were prepared without taking into account external-growth assumptions and potential future acquisitions, which may alter these parameters. These objectives are based on data and assumptions regarded as reasonable by Ipsen. These targets depend on conditions or facts likely to happen in the future, and not exclusively on historical data. Actual results may depart significantly from these targets given the occurrence of certain risks and uncertainties, notably the fact that a promising medicine in early development phase or clinical trial may end up never being launched on the market or reaching its commercial targets, notably for regulatory or competition reasons. Ipsen must face or might face competition from generic medicine that might translate into a loss of market share. Furthermore, the research and development process involves several stages each of which involves the substantial risk that Ipsen may fail to achieve its objectives and be forced to abandon its efforts with regards to a medicine in which it has invested significant sums. Therefore, Ipsen cannot be certain that favorable results obtained during preclinical trials will be confirmed subsequently during clinical trials, or that the results of clinical trials will be sufficient to demonstrate the safe and effective nature of the medicine concerned. There can be no guarantees a medicine will receive the necessary regulatory approvals or that the medicine will prove to be commercially successful. If underlying assumptions prove inaccurate or risks or uncertainties materialize, actual results may differ materially from those set forth in the forward-looking statements. Other risks and uncertainties include but are not limited to, general industry conditions and competition; general economic factors, including interest rate and currency exchange rate fluctuations; the impact of pharmaceutical industry regulation and healthcare legislation; global trends toward healthcare cost containment; technological advances, new medicine and patents attained by competitors; challenges inherent in new-medicine development, including obtaining regulatory approval; Ipsen’s ability to accurately predict future market conditions; manufacturing difficulties or delays; financial instability of international economies and sovereign risk; dependence on the effectiveness of Ipsen’s patents and other protections for innovative medicines; and the exposure to litigation, including patent litigation, and/or regulatory actions. Ipsen also depends on third parties to develop and market some of its medicines which could potentially generate substantial royalties; these partners could behave in such ways which could cause damage to Ipsen’s activities and financial results. Ipsen cannot be certain that its partners will fulfil their obligations. It might be unable to obtain any benefit from those agreements. A default by any of Ipsen’s partners could generate lower revenues than expected. Such situations could have a negative impact on Ipsen’s business, financial position or performance. Ipsen expressly disclaims any obligation or undertaking to update or revise any forward-looking statements, targets or estimates contained in this press release to reflect any change in events, conditions, assumptions or circumstances on which any such statements are based, unless so required by applicable law. Ipsen’s business is subject to the risk factors outlined in its registration documents filed with the French Autorité des Marchés Financiers. The risks and uncertainties set out are not exhaustive and the reader is advised to refer to Ipsen’s latest Universal Registration Document, available on ipsen.com. References 1 Wainberg et al. NALIRIFOX versus nab-paclitaxel and gemcitabine in treatment-naive patients with metastatic pancreatic ductal adenocarcinoma (NAPOLI 3): a randomised, open-label, phase 3 trial. Lancet. 2023 Oct 7;402(10409):1272-1281.2 Chung et al. NAPOLI 3 phase 3 study of NALIRIFOX in patients with metastatic pancreatic ductal adenocarcinoma (mPDAC): final overall survival (OS) analysis and characteristics of the long-term survivors. As presented at ASCO Congress 2025 Chicago, USA3 American Cancer Society – Cancer Facts and Figures 2024. Available : https://www.cancer.org/content/dam/cancer-org/research/cancer-facts-and-statistics/annual-cancer-facts-and-figures/2024/2024-cancer-facts-and-figures-acs.pdf4 https://www.cancer.net/cancer-types/pancreatic-cancer/statistics5 Orth, M., Metzger, P., Gerum, S. et al. Pancreatic ductal adenocarcinoma: biological hallmarks, current status, and future perspectives of combined modality treatment approaches. Radiat Oncol 14, 141 (2019). https://doi.org/10.1186/s13014-019-1345-6 Attachment Ipsen PR_ASCO NAPOLI_31052025

RAHWAY, NJ, USA I May 30, 2025 I Merck (NYSE: MRK), known as MSD outside of the United States and Canada, today announced results from the dose confirmation portion of the Phase 2/3 waveLINE-003 study evaluating zilovertamab vedotin in combination with standard of care rituximab and gemcitabine-oxaliplatin (R-GemOx) for the treatment of relapsed or refractory diffuse large B-cell lymphoma (DLBCL). Zilovertamab vedotin is an investigational, potential first-in-class antibody drug conjugate (ADC) that targets receptor tyrosine kinase-like orphan receptor 1 (ROR1). At a pre-planned analysis, zilovertamab vedotin 1.75 mg/kg in combination with R-GemOx achieved a 56.3% objective response rate (ORR) in patients with relapsed or refractory DLBCL (n=16), with eight complete responses (CR) and one partial response (PR). These data are being presented for the first time today during an oral presentation at the 2025 American Society of Clinical Oncology (ASCO) Annual Meeting (Abstract #7005). “Patients with relapsed or refractory diffuse large B-cell lymphoma continue to experience poor outcomes and an unmet need remains to help provide these patients with additional options to treat their cancer,” said Dr. Philippe Armand, the study’s principal investigator, Dana-Farber Cancer Institute. “These data from the Phase 2 portion of the waveLINE-003 trial are encouraging for patients and support further research in the relapsed/refractory setting in a larger patient population.” “In the Phase 2 portion of the waveLINE-003 trial, the 1.75 mg/kg dose of zilovertamab vedotin with rituximab, gemcitabine and oxaliplatin demonstrated a promising response rate, complete response rate and manageable safety profile in combination with standard of care,” said Dr. Gregory Lubiniecki, vice president, oncology clinical research, Merck Research Laboratories. “The Phase 3 portion of this trial is already enrolling, and as we continue to advance our research of this investigational ROR1-directed ADC, these promising results amplify our belief in the potential of zilovertamab vedotin to treat multiple hematologic malignancies.” Zilovertamab vedotin is currently being evaluated in patients with previously untreated DLBCL in the Phase 3 waveLINE-010 study ( NCT06717347 ) and in the Phase 2 waveLINE-007 study ( NCT05406401 ). Additionally, we recently initiated the Phase 2 waveLINE-011 study ( NCT06890884 ), which is a randomized, open-label clinical trial evaluating zilovertamab vedotin plus rituximab and cyclophosphamide, doxorubicin and prednisone (R-CHP) versus polatuzumab vedotin with R-CHP for the treatment of patients with DLBCL. The trial is estimated to enroll 594 patients and the primary endpoint is CR rate at end of treatment, with secondary endpoints of progression-free survival (PFS), overall survival (OS), event-free survival, duration of CR and safety. Global recruitment of the waveLINE-011 study has begun, with patients now enrolling. As announced , data spanning more than 25 types of cancer are being presented from Merck’s broad oncology portfolio and investigational pipeline at the 2025 ASCO Annual Meeting. Study design and additional data from waveLINE-003 WaveLINE-003 is a Phase 2/3 randomized, multicenter, open-label, dose confirmation and expansion clinical trial (ClinicalTrials.gov, NCT05139017 ) designed to assess the safety and efficacy of zilovertamab vedotin in combination with standard of care options for the treatment of relapsed or refractory DLBCL after one or more lines of therapy. This study is divided into two parts: dose confirmation (part 1) and efficacy expansion (part 2) and enrolled adult participants with confirmed relapsed or refractory DLBCL after one or more lines of therapy and an Eastern Cooperative Oncology Group performance status of 0-2. In Part 1, primary endpoints were safety and recommended Phase 2 dose (RP2D). Secondary endpoints were ORR, duration of response (DOR) per Lugano 2014 response criteria by blinded independent central review and OS. Part 1 of the trial enrolled 40 patients (as of the August 1, 2024 data cutoff) to receive either: Treatment-related adverse events (TRAEs) were reported in 98% of patients (n=40). Grade ≥3 TRAEs occurred in 63% of patients (n=25). At the 1.5 mg/kg dose of zilovertamab vedotin plus R-GemOx, four patients completed treatment, eight discontinued due to progression and one withdrew, with four patients receiving ongoing treatment at data cut-off. At the 1.75 mg/kg dose, eight patients completed treatment, seven discontinued due to progression and one patient discontinued due to physician decision. In the 2.0 mg/kg dose cohort, three patients completed treatment, three patients discontinued treatment due to adverse events (AEs) (treatment-related sepsis and respiratory failure), and one patient withdrew due to physician decision. One patient died after discontinuing treatment due to treatment-related sepsis. The most common AEs were diarrhea, nausea, anemia and platelet count decrease, while the most common Grade ≥3 AEs were neutropenia, neutrophil count decrease, platelet count decrease and anemia. Seven dose-limiting toxicities occurred across all participants. At the 1.5 mg/kg dose of zilovertamab vedotin plus R-GemOx, one participant had Grade 4 febrile neutropenia. At the 1.75 mg/kg dose, one participant experienced Grade 3 alanine aminotransferase increased and one patient had intestinal obstruction. At the 2.0 mg/kg dose, participants had Grade 3 diarrhea, Grade 4 neutrophil count decrease and Grade 4 thrombocytopenia (one patient each), and one patient experienced both Grade 3 febrile neutropenia and Grade 4 neutrophil count decrease. The median follow-up for all participants was 9.8 months. At a median follow-up of 18.1 months (range, 2.4 to 23.3 months) in patients receiving the 1.5 mg/kg dose of zilovertamab vedotin (n=15), ORR was 26.7% (3 CR [20.0%], 1 PR [6.7%]) and median DOR was 14.4 months (95% CI, not reached [NR]-NR). At a median follow-up of 9.9 months (range, 4.0 to 30.0 months) for patients receiving the 1.75 mg/kg dose (n=16), ORR was 56.3% (8 CR [50.0%], 1 PR [6.3%]) and median DOR was 8.7 months (95% CI, 2.3-NR). At a median follow-up of 9.3 months (range, 6.0 to 10.0 months) for patients receiving the 2.0 mg/kg dose (n=7), the ORR was 57.1% (3 CR [42.9%], 1 PR [14.3%]) and median DOR was not reached (95% CI, 4.1-NR). Based on these results and accompanying safety data, the recommended Phase 2 dose of zilovertamab vedotin was determined to be 1.75 mg/kg when used with R-GemOx. About diffuse large B-cell lymphoma Lymphoma is cancer beginning in the lymphatic system – the network of organs, vessels and tissues that protects the body from infection. There are many subtypes of lymphoma, which is often categorized into two main types – Hodgkin lymphoma and non-Hodgkin lymphoma (NHL). Diffuse large B-cell lymphoma, the most common form of NHL, is derived from white blood cells that grow rapidly and uncontrollably, enlarging the lymph nodes and often migrating to other parts of the body. DLBCL accounts for approximately 25-30% of all NHLs worldwide. In the U.S., it is estimated that approximately 25,000 patients are diagnosed with DLBCL each year. The five-year relative survival rate for DLBCL is 60-70%. About zilovertamab vedotin (MK-2140) Zilovertamab vedotin is an investigational, potential first-in-class ADC that targets ROR1. ROR1 is a transmembrane protein that is overexpressed in multiple hematologic malignancies. Merck is committed to research with zilovertamab vedotin across B-cell malignancies and has established a robust program of clinical trials under the name waveLINE. In addition to waveLINE-003, the waveLINE program includes a Phase 3 study in patients with previously untreated DLBCL (waveLINE-010, NCT06717347 ), a Phase 2 study in patients with select B-cell lymphomas (waveLINE-006, NCT05458297 ), a Phase 2 study in patients with germinal center B-cell-like DLBCL (waveLINE-011, NCT06890884 ) and a Phase 2 study in patients with previously untreated DLBCL (waveLINE-007, NCT05406401 ). About Merck in hematology Merck is committed to advancing innovation and care for people with hematologic neoplasms and malignancies. Building on its leadership in oncology, the company has a broad clinical development program that evaluates novel mechanisms of action to address longstanding unmet needs for patients with hematologic disorders. Among Merck’s research efforts are studies evaluating multiple investigational medicines as monotherapy or in combination with other therapies across a range of hematologic neoplasms and malignancies. Merck’s focus on cancer Every day, we follow the science as we work to discover innovations that can help patients, no matter what stage of cancer they have. As a leading oncology company, we are pursuing research where scientific opportunity and medical need converge, underpinned by our diverse pipeline of more than 25 novel mechanisms. With one of the largest clinical development programs across more than 30 tumor types, we strive to advance breakthrough science that will shape the future of oncology. By addressing barriers to clinical trial participation, screening and treatment, we work with urgency to reduce disparities and help ensure patients have access to high-quality cancer care. Our unwavering commitment is what will bring us closer to our goal of bringing life to more patients with cancer. For more information, visit https://www.merck.com/research/oncology/ . About Merck At Merck, known as MSD outside of the United States and Canada, we are unified around our purpose: We use the power of leading-edge science to save and improve lives around the world. For more than 130 years, we have brought hope to humanity through the development of important medicines and vaccines. We aspire to be the premier research-intensive biopharmaceutical company in the world – and today, we are at the forefront of research to deliver innovative health solutions that advance the prevention and treatment of diseases in people and animals. We foster a diverse and inclusive global workforce and operate responsibly every day to enable a safe, sustainable and healthy future for all people and communities. For more information, visit www.merck.com and connect with us on X (formerly Twitter) , Facebook , Instagram , YouTube and LinkedIn . SOURCE: Merck