Ixifi / Zessly
Infliximab biosimilar developed by Pfizer and Sandoz, development code PF-06438179 (GP1111). Reference product Remicade.
About Ixifi / Zessly
This infliximab was developed by Pfizer and is sold as Ixifi in the United States, approved in 2017, and by Sandoz as Zessly in Europe, approved in 2018. Pfizer never launched Ixifi in the United States, because it already sold Celltrion's Inflectra there. Japan approved it under Pfizer's name in 2018, and Canada in 2021.
Status by market
United States · Ixifi
US Food and Drug AdministrationApprovedEuropean Union · Zessly
European Medicines Agency and European CommissionApprovedUnited Kingdom · Zessly
Medicines and Healthcare products Regulatory AgencyApprovedJapan · Infliximab BS [Pfizer]
Pharmaceuticals and Medical Devices Agency and MHLWApprovedCanada · Ixifi
Health CanadaApprovedIndia
Not listed by CDSCO.
United Arab Emirates
Not listed by EDE.
Other developers in the same markets
Where Ixifi / Zessly holds an approval, these are the other infliximab biosimilars approved in that market.
| Market | Rivals | Developers (product) |
|---|---|---|
| FDA | 3 | Amgen (Avsola), Celltrion (Remsima / Inflectra), Samsung Bioepis (Renflexis / Flixabi) |
| EMA | 2 | Celltrion (Remsima / Inflectra), Samsung Bioepis (Renflexis / Flixabi) |
| MHRA | 2 | Celltrion (Remsima / Inflectra), Samsung Bioepis (Renflexis / Flixabi) |
| PMDA | 2 | Celltrion (Remsima / Inflectra), Nichi-Iko Pharmaceutical (Infliximab BS Nichiiko / AYUMI) |
| HC | 3 | Amgen (Avsola), Celltrion (Remsima / Inflectra), Samsung Bioepis (Renflexis / Flixabi) |
Same developer, other molecules
Other biosimilars in the Atlas developed by Pfizer: Abrilada / Amsparity, Nivestym / Nivestim, Nyvepria, Ruxience, Trazimera, Zirabev.
Chronology
- FDADec 2017Approved by FDA as Ixifi
- EMAMay 2018Authorised by the European Commission as Zessly
- PMDAJul 2018Approved by MHLW as Infliximab BS [Pfizer]
- HCDec 2021Notice of Compliance, Health Canada as Ixifi
Sources
S001FDA, Biosimilar Product Information (approved biosimilars table) Primary (regulator)S016FDA Purple Book, monthly data downloads January to August 2026 Primary (regulator)S017EMA, medicines data table (medicines-output-medicines-report_en.xlsx) Primary (regulator)S020PMDA, list of approved biosimilar products in Japan (as of July 2026) Primary (regulator)S022Health Canada, Drug Product Database data extract (active and inactive product files, biosimilar table) Primary (regulator)S023MHRA Products, substance lists of licensed medicines (products.mhra.gov.uk) Primary (regulator)
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