IFRX Stock Soars Pre-Market After Experimental Drug Shows Promise In Treating Chronic Skin Diseases

The company said that the data provide a strong rationale for further development of the drug in Hidradenitis Suppurative and Chronic Spontaneous Urticaria.
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Rising stock market chart on a trading board background. | Image source: Yuichiro Chino on Getty Images
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Anan Ashraf·Stocktwits
Published Nov 10, 2025   |   8:02 AM EST
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InflaRx N.V. (IFRX) announced on Monday that data from a mid-stage trial of its INF904 in certain skin conditions demonstrated positive outcomes, including a reduction in disease severity and pain, which sent shares rallying 80% in the pre-market session.

The company studied the experimental drug in Hidradenitis Suppurative (HS) and Chronic Spontaneous Urticaria (CSU). It was aimed at evaluating the safety and pharmacokinetics / pharmacodynamics profile of INF904.

While Hidradenitis suppurativa (HS) is a chronic skin disease that causes painful, boil-like lumps to form under the skin, Chronic spontaneous urticaria (CSU) is a skin condition characterized by recurrent, itchy hives (wheals) and/or swelling (angioedema) that lasts for six weeks or longer.

The company said that the data provide a strong rationale for further development of the drug in both these diseases. 

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