Cutaneous T-Cell Lymphoma, Relapsed

Cutaneous T-cell lymphomas (CTCL) are a rare and heterogeneous group of extranidal T-cell lymphomas characterized by skin involvement. Current treatment options for CTCL are limited. Although responses have been demonstrated, their duration is often short, especially in patients with advanced stage disease. Additional treatment options are needed which demonstrate activity in cutaneous and extracutaneous sites. The traditional CHOP regimen (Cyclophosphamide, Hydroxydaunorubicin, Vincristine and Prednisone) has some efficacy for CTCL patients, but due to the cardiotoxicity of anthracyclines, patients can only receive a limited course of treatment. After stopping the regimen, most patients will experience relapse. Aclarubicin, also known as aclacinomycin A, is an anthracycline type of antibiotic with significant anti-cancer properties. Previous studies have shown that aclarubicin only induces histone eviction without causing DNA damage, and it stands out in pre-clinical models and clinical studies, as it potently kills AML cells. Meanwhile, aclarubicin lacks cardiotoxicity, and can be safely administered even after the maximum cumulative dose of either doxorubicin or idarubicin has been reached. Aclarubicin's treatment indications include malignant lymphoma, but actual clinical application experience is limited. The purpose of this study is to determine the maximum tolerated dose, safety and efficacy of aclarubicin combined with cyclophosphamide, vincristine, and prednisone (CAOP) for subjects with relapsed or refractory CTCL.