Elafibranor

Elafibranor showed a favorable safety profile and demonstrated dose-dependent efficacy over 12 weeks for people living with PSC, a rare liver disease that currently has no approved treatment options Patients treated with elafibranor versus placebo showed significant improvements in liver biochemical parameters, including alkaline phosphatase (ALP) Stabilization of non-invasive markers of liver fibrosis were observed in patients on elafibranor versus placebo A significant improvement in pruritus was observed in patients on elafibranor 120 mg versus placebo PARIS, FRANCE, 24 April 2025 Ipsen (Euronext: IPN; ADR: IPSEY) will be presenting data from the late-breaking abstract on elafibranor in the investigational Phase II ELMWOOD study at the European Association for the Study of the Liver (EASL) congress as an oral presentation, on 10 May at 11.15 CET. For the first time data highlighting the potential of elafibranor in treating people living with primary sclerosing cholangitis (PSC) will be presented. PSC is a rare liver disease that currently has no approved treatment options. “These results are a testament to our ongoing commitment to advancing potential treatments for rare liver diseases where there is a significant unmet need and few options for patients currently exist,” said Christelle Huguet, PhD, Executive Vice President and Head of Research and Development, Ipsen. “These results are encouraging and reinforce elafibranor’s action as a PPARα/δ agonist in potentially treating multiple liver diseases, like PSC.” The Phase II ELMWOOD trial data (LB25222/OS089) demonstrated a positive safety and tolerability profile and efficacy benefits for patients with PSC treated with elafibranor versus those treated with a placebo. In this 12-week study, 68 patients with PSC were randomized to receive either elafibranor 80 mg or 120 mg or placebo. The primary endpoint was the safety and tolerability of elafibranor. Treatment-emergent adverse events were experienced by 68.2%, 78.3% and 69.6% of patients on elafibranor 80 mg, 120 mg and placebo, respectively. Adverse events leading to treatment discontinuation occurred more commonly in patients on placebo (8.7%) than elafibranor 80 mg (4.5%) or 120 mg (4.3%). Serious adverse events occurred in 4.3% of patients on placebo and none on elafibranor.1 Efficacy results showed that patients on elafibranor had significant dose-dependent reductions in alkaline phosphatase (ALP), with patients on elafibranor 80 mg and 120 mg having significant reductions at week 12 versus placebo (−103.2 U/L and −171.1 U/L vs +32.1 U/L; p < 0.0001), and improvements observed as early as week 4. Similar findings were seen in other biochemical liver parameters, including alanine aminotransferase (ALT) and gamma-glutamyl transferase (GGT), which are important biochemical markers of disease progression. Patients on elafibranor also had stabilization in Enhanced Liver Fibrosis (ELF), a non-invasive marker of liver fibrosis, versus patients on placebo at week 12. Additionally, patients on elafibranor 120 mg experienced improvements in pruritus compared with patients on placebo according to the Worst Itch Numeric Rating Scale (WI NRS) score (-0.96 vs -0.28; p<0.05).1 “These data from the ELMWOOD trial are encouraging, demonstrating positive safety and efficacy data for elafibranor as a potential treatment for PSC, where none currently exist,” said Cynthia Levy, MD, Professor of Clinical Medicine and Hepatology, University of Miami Miller School of Medicine, Miami, Florida. “PSC is a serious liver disease and currently, liver transplantation is the only treatment that can significantly improve the prognosis. These findings support further investigation in larger longer-term trials to fully evaluate the potential of elafibranor in PSC.” PSC is a rare, chronic liver disease characterized by inflammation and scarring of the bile ducts, which can lead to liver damage and eventually liver failure. The exact cause of PSC is unknown, but it is often associated with other autoimmune conditions, such as inflammatory bowel disease. Symptoms of PSC can include itching, fatigue, jaundice, and abdominal pain. Over time, PSC can result in complications like bile duct infections, liver cirrhosis, and an increased risk of liver cancer. Currently, there are no FDA or EMA approved therapies for the treatment of PSC. About ELMWOODThe ELMWOOD phase II study is a randomized, double-blind, placebo-controlled study which evaluated the safety and efficacy of elafibranor in treating PSC, a rare liver disease. Conducted over 12 weeks, the trial involved 68 patients who were randomized to receive either elafibranor (80 mg or 120 mg) or a placebo. The primary endpoint was the safety and tolerability of elafibranor versus placebo. Additional endpoints included change from baseline in liver biochemistry values, non-invasive markers of fibrosis, and patient-reported outcomes, including pruritus according to the Worst Itch Numeric Rating Scale (WI NRS). The open-label 96-week extension evaluating the safety and efficacy of elafibranor 120 mg remains ongoing. About elafibranorElafibranor is an oral peroxisome proliferator-activated receptor (PPAR) agonist, which exerts an effect on PPARα and PPARδ. Activation of PPARα and PPARδ decreases bile toxicity and improves cholestasis by modulating bile acid synthesis, detoxification and transporters. Activation of PPARα and PPARδ also has anti-inflammatory effects by acting on different pathways. In 2019, elafibranor was granted Breakthrough Therapy Designation by the U.S Food and Drug Administration (FDA) in adults with Primary Biliary Cholangitis (PBC) who have an inadequate response to ursodeoxycholic acid (UDCA) the existing first-line therapy for PBC. Elafibranor under the brand name IQIRVO® was granted U.S. FDA accelerated approval in June 2024, EU conditional approval by the European Commission (EC) in September 2024 and UK Medicines and Healthcare products Regulatory Agency (MHRA) approval in October 2024, for the treatment of PBC in combination with ursodeoxycholic acid (UDCA) in adults who have an inadequate response to UDCA, or as monotherapy in patients unable to tolerate UDCA. The FDA, EC and MHRA approvals are contingent on the further verification of clinical benefit. Elafibranor was developed by GENFIT. Ipsen licensed the exclusive worldwide rights (except China, Hong Kong, Taiwan and Macau) to elafibranor from GENFIT in 2021.Please see full Prescribing Information for IQIRVO in the U.S.Please see full Prescribing Information for IQIRVO in the E.U. ENDS 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 80 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 contacts Investors Khalid DEOJEE | + 33 6 66 01 95 26 | khalid.deojee@ipsen.com Media Sally Bain | +1 8573200517 | sally.bain@ipsen.com Anne Liontas | + 33 7 67 34 72 96 | anne.liontas.ext@ipsen.com Disclaimers and/or Forward-Looking Statements The 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 Attachment Ipsen PR_EASL 2025 IQIRVO PSC_24042025 Elafibranor showed a favorable safety profile and demonstrated dose-dependent efficacy over 12 weeks for people living with PSC, a rare liver disease that currently has no approved treatment options Patients treated with elafibranor versus placebo showed significant improvements in liver biochemical parameters, including alkaline phosphatase (ALP) Stabilization of non-invasive markers of liver fibrosis were observed in patients on elafibranor versus placebo A significant improvement in pruritus was observed in patients on elafibranor 120 mg versus placebo PARIS, FRANCE, 24 April 2025 Ipsen (Euronext: IPN; ADR: IPSEY) will be presenting data from the late-breaking abstract on elafibranor in the investigational Phase II ELMWOOD study at the European Association for the Study of the Liver (EASL) congress as an oral presentation, on 10 May at 11.15 CET. For the first time data highlighting the potential of elafibranor in treating people living with primary sclerosing cholangitis (PSC) will be presented. PSC is a rare liver disease that currently has no approved treatment options. “These results are a testament to our ongoing commitment to advancing potential treatments for rare liver diseases where there is a significant unmet need and few options for patients currently exist,” said Christelle Huguet, PhD, Executive Vice President and Head of Research and Development, Ipsen. “These results are encouraging and reinforce elafibranor’s action as a PPARα/δ agonist in potentially treating multiple liver diseases, like PSC.” The Phase II ELMWOOD trial data (LB25222/OS089) demonstrated a positive safety and tolerability profile and efficacy benefits for patients with PSC treated with elafibranor versus those treated with a placebo. In this 12-week study, 68 patients with PSC were randomized to receive either elafibranor 80 mg or 120 mg or placebo. The primary endpoint was the safety and tolerability of elafibranor. Treatment-emergent adverse events were experienced by 68.2%, 78.3% and 69.6% of patients on elafibranor 80 mg, 120 mg and placebo, respectively. Adverse events leading to treatment discontinuation occurred more commonly in patients on placebo (8.7%) than elafibranor 80 mg (4.5%) or 120 mg (4.3%). Serious adverse events occurred in 4.3% of patients on placebo and none on elafibranor.1 Efficacy results showed that patients on elafibranor had significant dose-dependent reductions in alkaline phosphatase (ALP), with patients on elafibranor 80 mg and 120 mg having significant reductions at week 12 versus placebo (−103.2 U/L and −171.1 U/L vs +32.1 U/L; p < 0.0001), and improvements observed as early as week 4. Similar findings were seen in other biochemical liver parameters, including alanine aminotransferase (ALT) and gamma-glutamyl transferase (GGT), which are important biochemical markers of disease progression. Patients on elafibranor also had stabilization in Enhanced Liver Fibrosis (ELF), a non-invasive marker of liver fibrosis, versus patients on placebo at week 12. Additionally, patients on elafibranor 120 mg experienced improvements in pruritus compared with patients on placebo according to the Worst Itch Numeric Rating Scale (WI NRS) score (-0.96 vs -0.28; p<0.05).1 “These data from the ELMWOOD trial are encouraging, demonstrating positive safety and efficacy data for elafibranor as a potential treatment for PSC, where none currently exist,” said Cynthia Levy, MD, Professor of Clinical Medicine and Hepatology, University of Miami Miller School of Medicine, Miami, Florida. “PSC is a serious liver disease and currently, liver transplantation is the only treatment that can significantly improve the prognosis. These findings support further investigation in larger longer-term trials to fully evaluate the potential of elafibranor in PSC.” PSC is a rare, chronic liver disease characterized by inflammation and scarring of the bile ducts, which can lead to liver damage and eventually liver failure. The exact cause of PSC is unknown, but it is often associated with other autoimmune conditions, such as inflammatory bowel disease. Symptoms of PSC can include itching, fatigue, jaundice, and abdominal pain. Over time, PSC can result in complications like bile duct infections, liver cirrhosis, and an increased risk of liver cancer. Currently, there are no FDA or EMA approved therapies for the treatment of PSC. About ELMWOODThe ELMWOOD phase II study is a randomized, double-blind, placebo-controlled study which evaluated the safety and efficacy of elafibranor in treating PSC, a rare liver disease. Conducted over 12 weeks, the trial involved 68 patients who were randomized to receive either elafibranor (80 mg or 120 mg) or a placebo. The primary endpoint was the safety and tolerability of elafibranor versus placebo. Additional endpoints included change from baseline in liver biochemistry values, non-invasive markers of fibrosis, and patient-reported outcomes, including pruritus according to the Worst Itch Numeric Rating Scale (WI NRS). The open-label 96-week extension evaluating the safety and efficacy of elafibranor 120 mg remains ongoing. About elafibranorElafibranor is an oral peroxisome proliferator-activated receptor (PPAR) agonist, which exerts an effect on PPARα and PPARδ. Activation of PPARα and PPARδ decreases bile toxicity and improves cholestasis by modulating bile acid synthesis, detoxification and transporters. Activation of PPARα and PPARδ also has anti-inflammatory effects by acting on different pathways. In 2019, elafibranor was granted Breakthrough Therapy Designation by the U.S Food and Drug Administration (FDA) in adults with Primary Biliary Cholangitis (PBC) who have an inadequate response to ursodeoxycholic acid (UDCA) the existing first-line therapy for PBC. Elafibranor under the brand name IQIRVO® was granted U.S. FDA accelerated approval in June 2024, EU conditional approval by the European Commission (EC) in September 2024 and UK Medicines and Healthcare products Regulatory Agency (MHRA) approval in October 2024, for the treatment of PBC in combination with ursodeoxycholic acid (UDCA) in adults who have an inadequate response to UDCA, or as monotherapy in patients unable to tolerate UDCA. The FDA, EC and MHRA approvals are contingent on the further verification of clinical benefit. Elafibranor was developed by GENFIT. Ipsen licensed the exclusive worldwide rights (except China, Hong Kong, Taiwan and Macau) to elafibranor from GENFIT in 2021.Please see full Prescribing Information for IQIRVO in the U.S.Please see full Prescribing Information for IQIRVO in the E.U. ENDS 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 80 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 contacts Investors Khalid DEOJEE | + 33 6 66 01 95 26 | khalid.deojee@ipsen.com Media Sally Bain | +1 8573200517 | sally.bain@ipsen.com Anne Liontas | + 33 7 67 34 72 96 | anne.liontas.ext@ipsen.com Disclaimers and/or Forward-Looking Statements The 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 Attachment Ipsen PR_EASL 2025 IQIRVO PSC_24042025

Total sales growth of 11.6% at CER1, or 11.7% as reported, driven by all three therapeutic areas and including an increasing contribution from Iqirvo and Bylvay. Tovorafenib regulatory submission to EMA2 for pediatric low-grade glioma. Confirmation of full-year 2025 financial guidance. PARIS, FRANCE, 16 April 2025 – Ipsen (Euronext: IPN; ADR: IPSEY), a global specialty-care biopharmaceutical company, today presents sales for the first quarter of 2025. “Ipsen has delivered a strong start to 2025, building further momentum in the transformation of our company,” commented David Loew, Chief Executive Officer, Ipsen. “We continued to execute on our strategy with strong top-line growth and pipeline progression. I am pleased to see the rapid build-up of our Rare Cholestatic Liver disease franchise with two innovate medicines for five indications. 2025 is set to be an important year for Ipsen, with multiple launches underway and several milestones expected across our portfolio.” Full-year guidance Ipsen is confirming financial guidance for full-year 2025: Total sales growth greater than 5.0%, at constant currency. Based on the average level of exchange rates in March 2025, a limited effect on total sales from currencies is expected. Core operating margin greater than 30.0% of total sales, which includes additional R&D expenses from anticipated early and mid-stage external-innovation opportunities. Guidance includes expected negative impact on Somatuline sales due to increased generic competition in the U.S. and Europe. It excludes any impact from potential late-stage (Phase III clinical development or later) business development transactions. Upcoming Milestones Ipsen anticipates several key milestones across its portfolio in 2025, including: Cabometyx (CABINET trial) – Regulatory decision in the European Union for advanced pancreatic (pNETs) and extra-pancreatic (epNETs) neuroendocrine tumors (NETs). fidrisertib (FALKON trial) – Readout of the pivotal Phase IIb trial in fibrodysplasia ossificans progressiva (FOP). LANT3 (LANTIC trial) – Proof-of-concept data readout, evaluating its potential in aesthetics. Q1 pipeline progress The regulatory filing for tovorafenib was accepted by EMA for review in the European Union, marking an important step forward in the development of this potential treatment for pediatric low-grade glioma and reinforcing Ipsen’s commitment to innovation in rare and difficult-to-treat cancers. Ipsen also initiated the entry in Phase I of IPN01195, a RAF inhibitor, complementing IPN01194, an ERK inhibitor, and tovorafenib, two other assets targeting the MAPK pathway. Group refinancing Ipsen announced on March 19th the successful completion of its inaugural Rated Public Bond of €500 million with a coupon of 3.875%, maturing in March 2032. Following the disclosure of the Investment Grade ratings from S&P and Moody’s, this transaction was very well received and largely oversubscribed by a diversified and solid institutional investor base. This transaction is an important component of Ipsen’s refinancing plan which included the successful renewal of €1,5 billion syndicated Revolving Credit Facility, extending Ipsen’s debt maturity profile. Conference call A conference call and webcast for investors and analysts will begin today at 2pm CET. Participants can access the call and its details by registering here; webcast details can be found here. Calendar Ipsen intends to publish its half-year results on July 31st, 2025. Notes All financial figures are in € millions (€m). The performance shown covers the three-month period to 31 March 2025 (Q1 2025, the quarter), compared to the three-month period to 31 March 2024 (Q1 2024), unless stated otherwise. 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 internal and 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 contacts InvestorsKhalid Deojee +33 6 69 09 12 96 MediaSally Bain +1 857 320 0517Anne Liontas +33 7 67 34 72 96 Disclaimers and/or forward-looking statements The 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. 1 At constant exchange rates (CER), which exclude any foreign-exchange impact by recalculating the performance for the relevant period by applying the exchange rates used for the prior period.2 EMA: European Medicines Agency 3 Long-acting neurotoxin Attachment Ipsen PR_Q1 2025_15042025 Total sales growth of 11.6% at CER1, or 11.7% as reported, driven by all three therapeutic areas and including an increasing contribution from Iqirvo and Bylvay. Tovorafenib regulatory submission to EMA2 for pediatric low-grade glioma. Confirmation of full-year 2025 financial guidance. PARIS, FRANCE, 16 April 2025 – Ipsen (Euronext: IPN; ADR: IPSEY), a global specialty-care biopharmaceutical company, today presents sales for the first quarter of 2025. “Ipsen has delivered a strong start to 2025, building further momentum in the transformation of our company,” commented David Loew, Chief Executive Officer, Ipsen. “We continued to execute on our strategy with strong top-line growth and pipeline progression. I am pleased to see the rapid build-up of our Rare Cholestatic Liver disease franchise with two innovate medicines for five indications. 2025 is set to be an important year for Ipsen, with multiple launches underway and several milestones expected across our portfolio.” Full-year guidance Ipsen is confirming financial guidance for full-year 2025: Total sales growth greater than 5.0%, at constant currency. Based on the average level of exchange rates in March 2025, a limited effect on total sales from currencies is expected. Core operating margin greater than 30.0% of total sales, which includes additional R&D expenses from anticipated early and mid-stage external-innovation opportunities. Guidance includes expected negative impact on Somatuline sales due to increased generic competition in the U.S. and Europe. It excludes any impact from potential late-stage (Phase III clinical development or later) business development transactions. Upcoming Milestones Ipsen anticipates several key milestones across its portfolio in 2025, including: Cabometyx (CABINET trial) – Regulatory decision in the European Union for advanced pancreatic (pNETs) and extra-pancreatic (epNETs) neuroendocrine tumors (NETs). fidrisertib (FALKON trial) – Readout of the pivotal Phase IIb trial in fibrodysplasia ossificans progressiva (FOP). LANT3 (LANTIC trial) – Proof-of-concept data readout, evaluating its potential in aesthetics. Q1 pipeline progress The regulatory filing for tovorafenib was accepted by EMA for review in the European Union, marking an important step forward in the development of this potential treatment for pediatric low-grade glioma and reinforcing Ipsen’s commitment to innovation in rare and difficult-to-treat cancers. Ipsen also initiated the entry in Phase I of IPN01195, a RAF inhibitor, complementing IPN01194, an ERK inhibitor, and tovorafenib, two other assets targeting the MAPK pathway. Group refinancing Ipsen announced on March 19th the successful completion of its inaugural Rated Public Bond of €500 million with a coupon of 3.875%, maturing in March 2032. Following the disclosure of the Investment Grade ratings from S&P and Moody’s, this transaction was very well received and largely oversubscribed by a diversified and solid institutional investor base. This transaction is an important component of Ipsen’s refinancing plan which included the successful renewal of €1,5 billion syndicated Revolving Credit Facility, extending Ipsen’s debt maturity profile. Conference call A conference call and webcast for investors and analysts will begin today at 2pm CET. Participants can access the call and its details by registering here; webcast details can be found here. Calendar Ipsen intends to publish its half-year results on July 31st, 2025. Notes All financial figures are in € millions (€m). The performance shown covers the three-month period to 31 March 2025 (Q1 2025, the quarter), compared to the three-month period to 31 March 2024 (Q1 2024), unless stated otherwise. 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 internal and 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 contacts InvestorsKhalid Deojee +33 6 69 09 12 96 MediaSally Bain +1 857 320 0517Anne Liontas +33 7 67 34 72 96 Disclaimers and/or forward-looking statements The 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. 1 At constant exchange rates (CER), which exclude any foreign-exchange impact by recalculating the performance for the relevant period by applying the exchange rates used for the prior period.2 EMA: European Medicines Agency 3 Long-acting neurotoxin Attachment Ipsen PR_Q1 2025_15042025