research 544 Alopecia areata lesions show significant changes in immune and keratin biomarkers that correlate with clinical improvement with oral Janus kinase inhibitors PF-06651600 (JAK3) and PF-06700841 (TYK2/JAK1)
This study found that oral JAK3 and TYK2/JAK1 inhibitors improved clinical outcomes in alopecia areata patients by reducing immune responses and enhancing hair keratin expression, with stronger effects in those with shorter disease duration.



