Oral TYK2 Inhibition in Atopic Dermatitis - Summary - MDSpire

Oral TYK2 Inhibition in Atopic Dermatitis

  • By

  • Kathryn Wighton

  • February 5, 2026

  • 4 min

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Objective:

To evaluate the efficacy and safety of oral ICP-332 in adults with moderate to severe atopic dermatitis (AD).

Approach:
    Key Findings:
    • Mean EASI reductions were 78% for the 80-mg dose and 73% for the 120-mg dose, compared to 17% for placebo.
    • 64% of patients in both ICP-332 groups achieved an EASI 75 response versus 8% with placebo.
    • Improvements in pruritus were observed as early as day 2.
    Interpretation:

    ICP-332 monotherapy demonstrated significant efficacy and a favorable safety profile in treating moderate to severe AD, warranting further investigation in larger trials.

    Limitations:
    • Small sample size and short treatment duration limit long-term efficacy assessment.
    • All participants were of Asian descent, affecting generalizability.
    • No active comparators or subgroup analyses were included.
    Conclusion:

    The study supports the initiation of larger phase 3 trials to confirm ICP-332's effectiveness in AD treatment.

    Sources:

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