According to a survey conducted among U.S. rheumatologists in 2021, around 39 percent were aware that there are biosimilars to Rituxan (infliximab) that are also FDA approved but not launched yet, while around 83 percent of physicians stated that they were familiar with the FDA definition of a biosimilar product. This statistic illustrates the percentage of rheumatologists familiar with autoimmune biosimilars in the United States as of 2021.
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Amgen. (September 22, 2021). Percentage of physicians familiar with autoimmune biosimilars in the United States as of 2021 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 30, 2026, from /statistics/1275610/share-of-physicians-familiar-with-autoimmune-biosimilars/
Amgen. "Percentage of physicians familiar with autoimmune biosimilars in the United States as of 2021." Chart. September 22, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 30, 2026. /statistics/1275610/share-of-physicians-familiar-with-autoimmune-biosimilars/
Amgen. (2021). Percentage of physicians familiar with autoimmune biosimilars in the United States as of 2021. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 30, 2026. /statistics/1275610/share-of-physicians-familiar-with-autoimmune-biosimilars/
Amgen. "Percentage of Physicians Familiar with Autoimmune Biosimilars in The United States as of 2021." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 22 Sep 2021, /statistics/1275610/share-of-physicians-familiar-with-autoimmune-biosimilars/
Amgen, Percentage of physicians familiar with autoimmune biosimilars in the United States as of 2021 ÌÇÐÄÆƽâ°æ, /statistics/1275610/share-of-physicians-familiar-with-autoimmune-biosimilars/ (last visited July 30, 2026)
Percentage of physicians familiar with autoimmune biosimilars in the United States as of 2021 [Graph], Amgen, September 22, 2021. [Online]. Available: /statistics/1275610/share-of-physicians-familiar-with-autoimmune-biosimilars/
