With a full dataset now illustrating success for a deuterated formulation of ruxolitinib in alopecia areata, Concert Pharmaceuticals Inc. continues to believe its selective JAK1/2 inhibitor is on pace to get to market first in the unmet medical need, ahead of Pfizer Inc.’s competing Phase II candidate, selective JAK3 inhibitor PF-06651600.
Concert Looks To Phase III In Alopecia Areata, Ahead Of Pfizer’s JAK Inhibitor
Concert believes its deuterated form of ruxolitinib has a better overall profile in alopecia areata than Pfizer’s JAK3 inhibitor. The company is planning to meet with the FDA to plan a Phase III program early in 2020.

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