@kayept

The link works without the period at the end. Otherwise, as written, it doesn't go anywhere.

Is this the article?
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https://di.aerzteblatt.de/int/archive/article/139297
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The article is a bit outdated in regards to biologicals which is understandable since it was written in 2013.
"Biologicals (evidence level 2, recommendation grade C)
Various biologicals (e.g., anti-TNF-α, anti-CD20, anti-interleukin receptor antibodies) have been investigated in case studies and series. The efficacy of biologicals in GCA cannot, however, be adequately judged on the basis of current data, and they should therefore not be used at present except in clinical studies."
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Ask your rheumatologist about Actemra (tocilizumab) if you are diagnosed with GCA. I think the USA is on par with other countries in advancing new treatments so there is less reliance on Prednisone to treat GCA.