Topical JAK-Inhibition of Early-Stage CTCL

This study tests whether a cream named delgocitinib (Anzupgo), applied twice daily to the skin, is safe and well tolerated in people with early-stage cutaneous T-cell lymphoma (a rare type of skin cancer called mycosis fungoides). The cream works by blocking proteins called JAK enzymes, which are involved in inflammation and cancer cell growth in the skin. Delgocitinib cream is already approved for treating chronic hand eczema, but it has not yet been studied in people with cutaneous T-cell lymphoma. In this study, up to 15 participants with stable, early-stage disease will apply the cream to their affected skin for 16 weeks. Researchers will closely monitor for side effects and also look at whether the cream improves skin symptoms, such as itching and the appearance of the skin. Participants will be followed for 4 additional weeks after treatment ends. This is an early, exploratory study (a \"proof-of-concept\" trial) designed mainly to check safety, not to prove that the treatment works. The findings will help researchers decide whether to test this cream in larger studies in the future.