Carfilzomib + Lenalidomide and Dexamethasone for BTK Inhibitors Relapsed-refractory or Intolerant MCL

This is a prospective, multicenter, single arm, phase II trial designed to evaluate the safety and efficacy of the combination of Carfilzomib (K), Lenalidomide (R) and Dexamethasone (D) in patients with mantle cell lymphoma (MCL) relapsed/refractory (R/R) or intolerant to BTK inhibitor (BTKi) monotherapy or BTKi containing regimens. The primary endpoint will be assessed 12 months after the start of treatment of the last patient. However, responsive patients (CR, PR, SD) may continue to receive K up to a maximum of 24 cycles and RD up to a maximum of 24 cycles. Patients who will interrupt therapy (for any reason) will be followed up to 12 months after the end of the treatment.