The stock was down 18%, wiping out year-to-date gains after the biotech stopped a late-stage clinical trial of its Vyvgart drug due to lack of efficacy.

There are more than 80 known autoimmune diseases, including lupus, rheumatoid arthritis, multiple sclerosis, psoriasis, Hashimoto's thyroiditis and Sjogren's syndrome.

Argenx said its blockbuster drug Vyvgart didn’t outperform placebo in a Phase 3 trial of patients with Sjögren's disease, a chronic autoimmune disorder.

ARGX's FB102 achieves its primary endpoint in a phase II celiac disease study, paving the way for late-stage development despite a nearly 12% stock drop.

Autoimmune diseases occur when the immune system mistakenly attacks the body's own healthy cells and tissues. Women are more commonly affected, but symptoms can be subtle and difficult to diagnose. From fatigue and joint pain to hormonal and genetic factors,

An international panel of 31 experts has published updated 2026 consensus recommendations in The Lancet Rheumatology guiding the safe use of CAR T-cell therapy in severe, treatment-refractory

Sjogren's disease study, while positive FB102 data in celiac disease offer a contrasting pipeline development.

Big Pharma-backed Nuvig Therapeutics has halted one of two trials for its sole clinical asset after determining the program wouldn’t be able to advance quickly enough. | Big Pharma-backed Nuvig Therapeutics has halted one of the two trials for its sole clinical asset after determining the program wouldn’t be able to advance quickly enough.

A large Japanese cohort study finds that elevated serum IgG4 may identify peripheral nerve damage in eosinophilic granulomatosis with polyangiitis, while intravenous cyclophosphamide appears linked to