GO Main Menu Go Main Contents Go Bottom Menu

ZYMFENTRA™(infliximab-dyyb), the first and only FDA-approved subcutaneous infliximab, now commercially available in the U.S.

등록일 2024-03-18
  • ZYMFENTRA is the first FDA-approved subcutaneous infliximab for the treatment of moderately to severely active ulcerative colitis and moderately to severely active Crohn's disease
  • ZYMFENTRA™ is commercially available across the U.S. on March 15, 2024

JERSEY CITY, N.J.March 17, 2024 /PRNewswire/ -- Celltrion USA announced today the availability of a ZYMFENTRA (infliximab-dyyb), a subcutaneous (SC) formulation of infliximab.[1]  ZYMFENTRA is the first and only subcutaneous infliximab approved by the U.S. Food and Drug Administration (FDA) in 2023.

ZYMFENTRA is approved for maintenance therapy in adults with moderately to severely active ulcerative colitis (UC) or moderately to severely active Crohn's disease (CD) following an induction treatment regimen with an infliximab product administered intravenously. The recommended dose of ZYMFENTRA for maintenance treatment is 120 mg every two weeks.

"Infliximab is a well-established treatment for people living with ulcerative colitis or Crohn's disease," said Thomas Nusbickel, Chief Commercial Officer at Celltrion USA. "The novel subcutaneous administration represents an important advancement in patient care that can offer a convenient treatment option, allowing patients in the U.S. to have greater flexibility in managing their disease."

The approval of ZYMFENTRA was based on phase III pivotal data from the LIBERTY-UC and LIBERTY-CD studies. The results of these studies demonstrated ZYMFENTRA's superiority in clinical remission and endoscopic response compared to placebo for maintenance treatment after induction therapy with the intravenous formulation of infliximab in patients with UC and CD over a 54-week study period. The overall safety profile of ZYMFENTRA was similar to that of placebo during maintenance period in both studies, with no new safety signals seen.[2],[3]

"The burden of Crohn's disease and ulcerative colitis on patients' daily lives is substantial," said Michael Osso, President and CEO of the Crohn's & Colitis Foundation. "This is a meaningful advancement for eligible adult patients with Crohn's disease and ulcerative colitis, who now have more options and can receive treatment of ZYMFENTRA at home, through subcutaneous delivery, allowing more flexibility and choice."

"Patients with ulcerative colitis and Crohn's disease are seeking not only safe and efficacious treatments that can provide incremental improvement but also convenient options when managing these chronic conditions," said Dr. Jean-Frederic Colombel of Icahn School of Medicine at Mount Sinai. "The availability of ZYMFENTRA will further allow patients to have better control of their treatment, providing flexibility and convenience."

ZYMFENTRA will be under patent protection through 2037 for its dosage form and route of administration by 2040.

About ZYMFENTRA (infliximab-dyyb)

ZYMFENTRA is a prescription medicine used as an injection under the skin (subcutaneous injection) by adults for the maintenance treatment of: moderately to severely active ulcerative colitis following treatment with an infliximab product given by intravenous infusion (IV), moderately to severely active Crohn's disease following treatment with an infliximab product given by intravenous infusion (IV). ZYMFENTRA blocks the action of tumor necrosis factor-alpha (TNF-alpha), a protein that can be overproduced in response to certain diseases and cause the immune system to attack normal, healthy parts of the body.

ZYMFENTRA™ (infliximab-dyyb) was approved by the FDA through the Biologics License Application (BLA) under the 351 (a) pathway of the Public Health Service Act (a "stand-alone" BLA). ZYMFENTRA is considered a new biologic with a first-approved subcutaneous administration form and thus will be under patent protection for its dosage form by 2037 and for its route of administration by 2040.

ZYMFENTRA (infliximab-dyyb) U.S. Use and Important Safety Information

ZYMFENTRA is a prescription medicine indicated in adults for maintenance treatment of:

  • moderately to severely active Crohn's disease following treatment with an infliximab product administered intravenously.
  • moderately to severely active ulcerative colitis following treatment with an infliximab product administered intravenously.

It is not known if ZYMFENTRA is safe and effective in children under 18 years of age.

What is the most important information I should know about ZYMFENTRA?


Patients treated with ZYMFENTRA are at increased risk for developing serious infections involving various organ systems and sites that may lead to hospitalization or death. Discontinue ZYMFENTRA if a patient develops a serious infection or sepsis.

Reported infections include:

  • Active tuberculosis (TB), including reactivation of latent TB. Patients frequently presented with disseminated or extrapulmonary disease. Patients should be tested for latent TB before and during treatment with ZYMFENTRA. Treatment for latent infection should be initiated prior to treatment with ZYMFENTRA.
  • Invasive fungal infections, including histoplasmosis, coccidioidomycosis, candidiasis, aspergillosis, blastomycosis, and pneumocystosis. Patients may present with disseminated, rather than localized, disease. Empiric anti-fungal therapy should be considered in patients at risk for invasive fungal infections who develop severe systemic illness.
  • Bacterial, viral, and other infections due to opportunistic pathogens, including Legionella and Listeria.

The risks and benefits of treatment with ZYMFENTRA should be carefully considered prior to initiating therapy in patients with chronic or recurrent infection. Closely monitor patients for the development of signs and symptoms of infection during and after treatment with ZYMFENTRA, including the possible development of TB in patients who tested negative for latent TB infection prior to initiating therapy.

Risk of infection may be higher in patients greater than 65 years of age, patients with comorbid conditions and/or patients taking concomitant immunosuppressant therapy. In clinical trials, other serious infections observed in patients treated with infliximab included arthritis bacterial, pneumonia, and urinary tract infection.


Malignancies, some fatal, have been reported in children, adolescents, and young adults treated with TNF blockers, including infliximab products.

Approximately half of these cases were lymphomas, including Hodgkin's and non-Hodgkin's lymphoma. The other cases represented a variety of malignancies, including rare malignancies that are usually associated with immunosuppression and malignancies that are not usually observed in children and adolescents. The malignancies occurred after a median of 30 months after the first dose of therapy. Most of the patients were receiving concomitant immunosuppressants.

Post-marketing cases of hepatosplenic T-cell lymphoma, a rare type of T-cell lymphoma, have been reported in patients treated with TNF blockers, including infliximab products. These cases have had a very aggressive disease course and have been fatal. The majority of reported cases have occurred in patients with Crohn's disease or ulcerative colitis, and most were in adolescent and young adult males. Almost all of these patients had received treatment with azathioprine or 6-mercaptopurine concomitantly with a TNF blocker at or prior to diagnosis. Carefully assess the risks and benefits of treatment with ZYMFENTRA, especially in these patient types.

In clinical trials of all TNF blockers, more cases of malignancies were observed compared with controls and the expected rate in the general population. In clinical trials of some TNF blockers, including infliximab products, more cases of other malignancies were observed compared with controls. As the potential role of TNF blocker therapy in the development of malignancies is not known, caution should be exercised when considering treatment of patients with a current or a past history of malignancy.

Melanoma and Merkel cell carcinoma have been reported in patients treated with TNF blocker therapy, including infliximab products. Periodic skin examination is recommended for all patients, particularly those with risk factors for skin cancer.


ZYMFENTRA is contraindicated in patients with a previous severe hypersensitivity reaction to infliximab-dyyb, other infliximab products, any of the inactive ingredients of ZYMFENTRA or any murine proteins (severe hypersensitivity reactions have included anaphylaxis, hypotension, and serum sickness).


TNF blockers, including infliximab products, have been associated with reactivation of hepatitis B virus (HBV) in patients who are chronic carriers. Some cases were fatal. Patients should be tested for HBV infection before initiating ZYMFENTRA. For patients who test positive, consult a physician with expertise in the treatment of hepatitis B. Exercise caution when prescribing ZYMFENTRA for patients identified as carriers of HBV, and monitor closely for active HBV infection during and following termination of therapy with ZYMFENTRA. Discontinue ZYMFENTRA in patients who develop HBV reactivation and initiate antiviral therapy with appropriate supportive treatment. Exercise caution when considering resumption of ZYMFENTRA, and monitor patients closely.


Hepatobiliary disorders, including acute liver failure, jaundice abnormal hepatic function, hepatic steatosis, hepatitis, hepatotoxicity, hyperbilirubinemia, and non-alcoholic fatty liver, have been reported in patients receiving infliximab products post-marketing. Some cases were fatal or required liver transplant. Aminotransferase elevations were not noted prior to discovery of liver injury in many cases. Patients with symptoms or signs of liver dysfunction should be evaluated for evidence of liver injury. If jaundice and/or marked liver enzyme elevations (eg, ≥5 times the upper limit of normal) develop, ZYMFENTRA should be discontinued, and a thorough investigation of the abnormality should be undertaken.


Cases of worsening congestive heart failure (CHF) and new onset CHF have been reported with TNF blockers. Some cases had a fatal outcome. In several exploratory trials of other TNF blockers in the treatment of CHF, there were greater proportions of TNF-blocker-treated patients who had CHF exacerbations requiring hospitalization or increased mortality. ZYMFENTRA has not been studied in patients with a history of CHF and ZYMFENTRA should be used with caution in patients with CHF.


Cases of leukopenia, neutropenia, thrombocytopenia, and pancytopenia (some fatal) have been reported. The causal relationship to infliximab-product therapy remains unclear. Exercise caution in patients who have ongoing or a history of significant hematologic abnormalities. Advise patients to seek immediate medical attention if they develop signs and symptoms of blood dyscrasias or infection. Consider discontinuation of ZYMFENTRA in patients who develop significant hematologic abnormalities.


In post-marketing experience, serious systemic hypersensitivity reactions (including anaphylaxis, hypotension, and serum sickness) have been reported following administration of infliximab products. If an anaphylactic or other clinically significant hypersensitivity reaction occurs, institute appropriate therapy and discontinue ZYMFENTRA.


In clinical studies, localized injection-site reactions were reported following administration of ZYMFENTRA. If a clinically significant injection-site reaction occurs, institute appropriate therapy and discontinue ZYMFENTRA.


Agents that inhibit TNF have been associated with central nervous system (CNS) manifestation of systemic vasculitis, seizure, and new onset or exacerbation of CNS demyelinating disorders, including multiple sclerosis and optic neuritis, and peripheral demyelinating disorders, including Guillain-Barré syndrome. Exercise caution when considering ZYMFENTRA in patients with these disorders and consider discontinuation if these disorders develop.


Serious infections and neutropenia have been reported with concurrent use of ZYMFENTRA with other immunosuppressive biological products. The concurrent use of ZYMFENTRA with other immunosuppressive biological products used to treat UC and CD may increase the risk of infection and is not recommended.


Consider the half-life and mode of action of prior biological products to avoid unintended additive immunosuppressive effects when initiating ZYMFENTRA.


Treatment with TNF blockers may result in the formation of autoantibodies and in the development of a lupus-like syndrome. Discontinue ZYMFENTRA treatment if symptoms of a lupus-like syndrome develop.


Prior to initiating ZYMFENTRA, update vaccinations in accordance with current vaccination guidelines. Live vaccines or therapeutic infectious agents should not be given with ZYMFENTRA due to the possibility of clinical infections, including disseminated infections. At least a 6-month waiting period following birth is recommended before the administration of any live vaccine to infants exposed in utero to ZYMFENTRA.


In clinical trials with ZYMFENTRA, the most common adverse reactions occurring in ≥3% of ZYMFENTRA-treated patients included site reactions, COVID-19, anemia, arthralgia, infection site reaction, increased alanine aminotransferase and abdominal pain for UC, and COVID-19, headache, upper respiratory tract infection, injection site reaction, diarrhea, increased blood creatine phosphokinase, arthralgia, increased alanine aminotransferase, hypertension, urinary tract infection, neutropenia, dizziness and leukopenia for CD.

This is the most important information to know about ZYMFENTRA. For more information, talk to your HCP. 

Please click for Full U.S. Prescribing Information.

Globally, prescribing information varies; refer to the individual country product label for complete information.

About Celltrion USA

Celltrion USA is Celltrion's U.S. subsidiary established in 2018. Headquartered in New Jersey, Celltrion USA is committed to expanding access to innovative biologics to improve care for U.S. patients. Celltrion currently has five biosimilars approved by the U.S. FDA: INFLECTRA® (infliximab-dyyb), TRUXIMA® (rituximab-abbs), HERZUMA® (trastuzumab-pkrb), VEGZELMA® (bevacizumab-adcd), and YUFLYMA®(adalimumab-aaty) as well as a new biologic ZYMFENTRA™. Celltrion USA will continue to leverage Celltrion's unique heritage in biotechnology, supply chain excellence, and best-in-class sales capabilities to improve access to high-quality biopharmaceuticals for U.S. patients. For more information, please visit: www.celltrionusa.com/.


[1] Zymfentra Prescribing Information

[2] Hanauer SB et al., Subcutaneous infliximab (CT-P13) as maintenance therapy for Crohn's disease: A phase 3, randomized, placebo-controlled study (LIBERTY-CD). Gastroenterology. 2023;164(Supplement_6):S220-S221; [Digestive Disease Week 2023, Presentation number 1028].

[3] Sands BE et al., Subcutaneous infliximab (CT-P13 SC) as maintenance therapy for ulcerative colitis: A phase 3, randomized, placebo-controlled study: Results of the LIBERTY-UC study. Gastroenterology. 2023;164(Supplement_6):S1083-S1084; [Digestive Disease Week 2023, Presentation number Tu1701].

Cookie technology helps us to provide you with the best possible experience when you visit this website. If you continue without changing your settings, you agree to the cookies on this website. For more information about our Cookie policy, please see the link to our Privacy Policy at the bottom of the page