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Ipsen

Drugmaker with rare disease work · based in Paris, France · founded 1929 · ticker IPSEY · ipsen.com

Ipsen works on 11 rare diseases we track, including Acromegaly, Acute Myeloid Leukemia and 9 more. It has 18 active clinical trials, and 9 are looking for volunteers now. It also has 4 FDA-approved rare disease drugs.

Ipsen is a French biopharmaceutical company focused on oncology, rare diseases, and neuroscience. Key rare disease products include Somatuline Depot (lanreotide) for acromegaly, Sohonos (palovarotene) for fibrodysplasia ossificans progressiva, Bylvay (odevixibat) for progressive familial intrahepatic cholestasis and Alagille syndrome pruritus, and Iqirvo (elafibranor) for primary biliary cholangitis (approved 2024). The company is also testing elafibranor for primary sclerosing cholangitis in the Phase 3 ELASCOPE trial, which began in May 2026.

Ipsen pipeline

Each row lists the diseases Ipsen is studying at that stage, from the ones closest to approval down to the earliest work.

Phase 3
Large studies, usually the last step before a company asks the FDA for approval.
Phase 2
Mid-size studies that check whether a drug works and at what dose.

Grade 3b Follicular Lymphoma recruiting · Primary Sclerosing Cholangitis · Paraganglioma · Cholangiocarcinoma

Phase 1
First studies in people, mostly checking safety.

Relapsed or Refractory B-cell Non-Hodgkin Lymphoma

Other studies
Studies with no phase listed, such as registries and natural history studies.

Ipsen clinical trials

These are Ipsen trials for the rare diseases we track, from ClinicalTrials.gov. Statuses there can lag behind company news, so confirm with the study team before you plan around one.

9 trials looking for volunteers now

Looking for volunteersPhase 2Recently updatedNCT05890352

Study Adding Drugs to Usual Treatment for Large B-Cell Lymphoma That Returned or Did Not Respond to Treatment

Tests Biospecimen Collection, Computed Tomography, Lenalidomide, Magnetic Resonance Imaging, Positron Emission Tomography, Quality-of-Life Assessment, Questionnaire Administration, Tafasitamab, Tazemetostat, Zanubrutinib

For Grade 3b Follicular Lymphoma, High Grade B-Cell Lymphoma, High Grade B-Cell Lymphoma With MYC and BCL2 and/or BCL6 Rearrangements, Recurrent Diffuse Large B-Cell Lymphoma and Refractory Diffuse Large B-Cell Lymphoma

This phase 2 trial studies the side effects and best dose of tazemetostat and zanubrutinib in combination with tafasitamab and lenalidomide, and to see how well these combinations work in treating patients with large B-cell lymphoma that returned or did not respond to earlier treatment. Tazemetostat is in a class of medications called EZH2 inhibitors. It helps to stop the spread of cancer cells. Zanubrutinib is in a class of medications called kinase inhibitors. It works by blocking the action of the abnormal protein that signals cancer cells to multiply. This helps stop the spread of cancer cells. tafasitamab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. Lenalidomide is in a class of medications called immunomodulatory agents. It works by helping the bone marrow to produce normal blood cells and by killing abnormal cells in the bone marrow. The addition of tazemetostat or zanubrutinib to tafasitamab and lenalidomide may be able to shrink the cancer or extend the time without cancer symptoms coming back.

Ages 18 Years+104 locations
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Looking for volunteersRecently updatedNCT07185919

A Study of the Effectiveness, Safety and the Long-term Outcomes of Participants With Progressive Familial Intrahepatic Cholestasis (PFIC) Who Take Odevixibat (Bylvay) in South Korea

For Progressive Familial Intrahepatic Cholestasis

This study will collect information from people with Progressive Familial Intrahepatic Cholestasis (PFIC) as they use odevixibat in their daily lives. Odevixibat is a medicine that helps people with PFIC, a type of rare disease that makes their liver not work well and causes itching and yellow skin. Odevixibat was first allowed to be used for PFIC in babies older than 6 months by the European Medicines Agency (EMA) on 16 July 2021 and by the United States Food and Drug Administration (FDA) on 20 July 2021 for itching in babies older than 3 months. Obevixibat was approved by the Ministry of Food and Drug Safety (MFDS) in South Korea on 23 August 2024. This study will collect information to see how well and how safe odevixibat is in the long run for participants in South Korea.

Ages not specified5 locations
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Looking for volunteersRecently updatedNCT07588880

A Study of the Effectiveness, Safety and the Long-term Outcomes of Participants With Progressive Familial Intrahepatic Cholestasis (PFIC) Who Take Odevixibat (Bylvay) in China

For Progressive Familial Intrahepatic Cholestasis

This registry-based study will collect information from people with Progressive Familial Intrahepatic Cholestasis (PFIC) who take odevixibat (Bylvay) as part of routine clinical care in China. PFIC is a rare genetic liver disease that affects bile secretion and can cause bile acids to build up in the liver, which may lead to symptoms such as severe itching (pruritus). Odevixibat was first allowed to be used for PFIC in babies older than 6 months by the European Medicines Agency (EMA) on 16 July 2021 and by the United States Food and Drug Administration (FDA) on 20 July 2021 for itching in babies older than 3 months. Odevixibat is approved for the treatment of pruritus in PFIC and was approved in China on 01 December 2024 for patients 6 months of age and older with PFIC. The main aim of this registry is to assess long-term real-world safety (based on adverse events) and to describe effectiveness outcomes.

Ages 6 Months+6 locations
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Looking for volunteersPhase 3Recently updatedNCT06016842

A Long-Term Study of Elafibranor in Adult Participants With Primary Biliary Cholangitis

Tests Elafibranor, Matched 80 mg placebo

For Primary Biliary Cholangitis (PBC)

The participants of this study will have confirmed Primary Biliary Cholangitis (PBC) and cirrhosis (scarring of the liver). PBC is a slowly progressive disease, characterised by damage to the bile ducts in the liver, leading to a build-up of bile acids which causes further damage. The liver damage in PBC may lead to cirrhosis. PBC may also be associated with multiple symptoms. Many patients with PBC may require liver transplant or may die if the disease progresses and a liver transplant is not done. This study will compare a daily dose of elafibranor (the study drug) to a daily dose of placebo (a dummy treatment) and will last up to 3.5 years for each participant. The main aim of this study is to determine if elafibranor is better than placebo in preventing clinical outcome events showing disease worsening (including progression of disease leading to liver transplant or death). This study will also study the safety of long-term treatment with elafibranor, as well as the impact on symptoms such as itching and tiredness.

Ages 18 Years+198 locations
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Looking for volunteersRecently updatedNCT07585097

A Study to Observe the Long-term Safety of Odevixibat in Patients With Alagille Syndrome (ALGS) Who Are Receiving Ongoing Treatment

For Alagille Syndrome

This study will collect information from patients with ALGS who are using odevixibat in their daily lives. Odevixibat is a medication that helps patients with ALGS, a rare disease that affects the liver and causes itching. The main aim of this study is to observe the long-term, everyday safety of the drug odevixibat in patients with ALGS who are receiving ongoing treatment.

Ages 6 Months+14 locations
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Looking for volunteersRecently updatedNCT06850038

A Study Observing the Long-term, Effectiveness and Safety of Odevixibat (Bylvay) in Patients With Alagille Syndrome (ALGS) Who Are Receiving Ongoing Treatment

For Alagille Syndrome

This study will collect information from patients with Alagille syndrome (ALGS) as they use odevixibat (Bylvay) in their daily lives. Odevixibat is a medicine that helps patients with ALGS, a rare disease that harms their liver and causes itching. The main aim of this study is to observe the long-term, everyday effectiveness and safety of the drug odevixibat in patients with ALGS who are receiving ongoing treatment.

Ages not specified10 locations
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Looking for volunteersPhase 3Recently updatedNCT07387549

A Study to Assess How Well and Safely Elafibranor Works in Adult Participants With Primary Sclerosing Cholangitis

Tests Elafibranor, Placebo

For Primary Sclerosing Cholangitis

The purpose of this study is to find out how well and safely elafibranor works compared to placebo in adult participants with Primary sclerosing cholangitis (PSC). PSC is a rare disease that causes inflammation and scarring of the bile ducts in the liver. Over time, this can lead to liver damage and serious health problems, including the need for a liver transplant and death. In this study, about 350 participants with large duct PSC will take part. Participants will be randomized to receive either elafibranor 120 mg once daily or a placebo (a tablet with no active medicine). The study includes a screening period, an treatment period, and a post-treatment safety follow-up. During the study, participants will undergo routine clinical assessments, laboratory testing, imaging evaluations, and complete patient-reassessments to evaluate liver disease progression, symptoms, quality of life and safety. Following the end of treatment, participants will complete a safety follow-up period at approximately four weeks. Participants may withdraw from the study at any time. Each participant may be in the study for several years, as the treatment period will continue until the study reaches enough health events among participants, which is expected to take about 5 years.

Ages 18 Years - 75 Years231 locations
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Looking for volunteersRecently updatedNCT06089616

A Study to Document and to Further Describe Long-term Safety and Effectiveness of Palovarotene in Participants With Fibrodysplasia Ossificans Progressiva (FOP)

For Fibrodysplasia Ossificans Progressiva

The participants in this registry study will have fibrodysplasia ossificans progressiva (FOP). FOP is an ultra-rare, severely disabling disease characterized by new bone formation in areas of the body where bone is not normally present (heterotopic ossification (HO)). HO is often preceded by painful, recurrent episodes of soft tissue swelling (flare-ups). This registry study will take place in countries where the treatment, known as palovarotene, has been approved for use. Participants will either be treated with palovarotene (i.e already be receiving palovarotene as prescribed by their treating physician according to locally approved product information) or untreated with palovarotene. The main aim of this registry study will be to collect and assess real-world safety data on children and adult participants with FOP treated with palovarotene. This registry study will also describe the effectiveness of palovarotene in exposed participants, including the effect on everyday activities and physical performance. In addition, this registry study aims to descriptively compare key safety outcomes (i.e. flare-up episodes, growth outcomes, and bone fractures) between participants exposed and unexposed to palovarotene.

Ages 8 Years+5 locations
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FDA-approved drugs from Ipsen

From the openFDA database. Tap a drug for side effects, dosing and help paying.

Bylvay odevixibat

For Alagille Syndrome and Progressive Familial Intrahepatic Cholestasis. Approved Jul 20, 2021. Taken by mouth.

Iqirvo elafibranor

For Primary Biliary Cholangitis. Approved Jun 10, 2024. Taken by mouth.

Sohonos palovarotene

For Fibrodysplasia Ossificans Progressiva. Approved Aug 16, 2023. Taken by mouth.

Somatuline Depot lanreotide acetate

For Acromegaly and Neuroendocrine Tumors. Approved Aug 30, 2007. Taken by subcutaneous route.

Where Ipsen trials take place

The trials above run at 921 study sites in 41 countries. Tap a country to see its states, cities and hospitals.

United States
347▼
Germany
69▼
Spain
46▼
Italy
44▼
France
40▼
United Kingdom
37▼
South Korea
34▼
Canada
32▼
Japan
27▼
Brazil
21▼
Argentina
20▼
Australia
19▼

Rare diseases Ipsen works on

Each disease page lists every open trial, not only Ipsen's, plus approved treatments.

Acromegaly

Acromegaly is a rare hormonal disorder caused by excessive growth hormone production, typically from a pituitary adenoma, resulting in abnormal growth of hands, feet, and facial features.

How common: About 50 to 70 people per million, according to NORD, with 3 to 11 new cases per million people each year

Acute Myeloid Leukemia

Acute myeloid leukemia (AML) is a fast-growing cancer of the bone marrow in which immature white blood cells called blasts crowd out normal blood cells, causing fatigue, infections and bleeding...

How common: The National Cancer Institute's SEER program estimates 22,720 new US cases and 11,500 deaths in 2026, about 1.1% of new cancers, and 83,311 people were living with AML in 2023

Alagille Syndrome

Alagille syndrome is a rare autosomal dominant disorder affecting the liver, heart, skeleton, face, and eyes.

How common: 1 in 30,000 to 43,000 people

Fibrodysplasia Ossificans Progressiva

Fibrodysplasia Ossificans Progressiva (FOP) is an extremely rare genetic disorder characterized by progressive heterotopic ossification, where soft tissues (muscles, tendons, ligaments) gradually...

How common: Extremely rare, about 1 in 1 million to 1 in 2 million people worldwide

Neuroendocrine Tumors

Neuroendocrine tumors (NETs) grow from hormone-making cells, most often in the small intestine, pancreas, rectum or lungs.

How common: About 244,000 people in the US were living with a neuroendocrine neoplasm, the wider group that includes NETs, in 2021, with about 8.5 new diagnoses per 100,000 people a year (Dasari et al., JAMA Network Open 2025); an earlier estimate for NETs alone was about 171,000 in 2014 (JAMA Oncology 2017)

Paraganglioma

Paragangliomas are rare neuroendocrine tumors arising from chromaffin tissue outside the adrenal medulla.

How common: 1 in 300,000 to 1,000,000; ~30% are hereditary

Pheochromocytoma

Pheochromocytoma is a rare neuroendocrine tumor arising from chromaffin cells of the adrenal medulla that produces excessive catecholamines (epinephrine and norepinephrine).

How common: About 2 to 8 new cases per million people a year (National Cancer Institute)

Primary Biliary Cholangitis

Primary Biliary Cholangitis (PBC) is a chronic autoimmune liver disease in which the immune system mistakenly attacks the small bile ducts in the liver, leading to bile duct destruction and...

How common: About 14.6 per 100,000 people worldwide in a 2021 pooled analysis of 47 population studies, highest in North America (21.8 per 100,000) and lowest in the Asia-Pacific region (9.8 per 100,000)

Primary Sclerosing Cholangitis

Primary Sclerosing Cholangitis (PSC) is a rare chronic liver disease characterized by inflammation and progressive scarring of the bile ducts, both inside and outside the liver.

How common: About 13.5 per 100,000 people in a 2024 pooled analysis of 12 population studies from North America, Europe, Asia and Oceania, with about 0.9 new cases per 100,000 people a year (Cooper et al., Inflamm Bowel Dis 2024); higher in Scandinavian countries; associated with IBD in 50-80% of PSC patients

Progressive Familial Intrahepatic Cholestasis

Progressive familial intrahepatic cholestasis comprises a group of rare inherited disorders causing progressive cholestasis and liver disease in childhood.

How common: 1 in 50,000 to 100,000 people (varies by type and ethnicity)

Turner Syndrome

Turner syndrome results from complete or partial absence of an X chromosome in females, causing short stature, gonadal dysgenesis, cardiac and renal abnormalities.

How common: 1 in 2,000 to 3,000 live female births

Where to get support

Patient groups can explain a diagnosis, point you to specialists and tell you about trials before they open. Ipsen's own site is ipsen.com, and our help paying for treatment page lists drugmaker programs and charity funds.

Questions about Ipsen