Clinical Research Directory

Lenalidomide in Relapsed or Refractory Primary-cutaneous Large B-cell Lymphoma Leg-type : Multicentre Prospective Phase II Single Arm Trial of the French Study Group of Cutaneous Lymphoma

In spite of high initial response rate after a first line treatment by R-polychemotherapy, cutaneous but also extra-cutaneous recurrences occur after 2 years in about half of the patients with PCBCL-LT. Thereafter there is no consensus concerning patients care: radiotherapy has only a palliative effect, advanced age often limits using more aggressive chemotherapies and no treatment has demonstrated a prolonged efficacy in these relapsing cases. Therefore new alternatives therapeutic options are needed. Lenalidomide has an antineoplastic pro-apoptotic effect but also immunomodulatory, and antiangiogenic properties. Preliminary results suggest its efficacy in relapsing or refractory diffuse large B-cells lymphomas, especially of nongerminal cells phenotype. By analogy with these results, lenalidomide appears as an attractive candidate in PCLBCL-LT, more specially as it has a manageable toxicity even in advanced age patients. If the lenalidomide efficacy is confirmed in relapsing PCLBCL-LT, this will plead its evaluation as maintenance therapy after R-chemotherapy in order to avoid recurrences.