RESUMO
To date, the treatment of peripheral T-cell lymphomas (PTCL) has lagged behind B-cell malignancies. Traditionally, para-digms for diffuse large B-cell lymphoma were applied to patients with PTCL, but the outcomes were poor. Recently, the FDA has ap-proved four drugs for patients with relapsed/refractory PTCL, and the Japanese government has approved of anti-CCR4 monoclonal an-tibody for patients with adult T-cell leukemia/lymphoma. Clinical studies are exploring the combination of these new agents into stan-dard CHOP-based regimens for patients with newly diagnosed PTCL. Recent studies have revealed that PTCL may be associated with epigenetic dysregulation and is thus sensitive to histone deacetylase inhibitors. These advances provide a new understanding of PTCL, whose therapeutic options will be presented in this review.
RESUMO
Peripheral T cell lymphoma (PTCL) is a heterogeneous group of aggressive lymphomas with poor prognosis. Elderly (age ≥ 65years) patients generally have impaired bone marrow function, altered drug metabolism, comorbidities, and poor functional status. Thus, treatment of elderly patients with relapsed or refractory PTCL remains a challenge for clinicians. A recent study disclosed that pralatrexate has a synergistic effect in combination with bortezomib. Weekly pralatrexate and bortezomib were administered intravenously for 3 weeks in a 4-week cycle. Of 5 patients, one achieved complete response after 4 cycles which has lasted 12 months until now. Another patient attained partial response after 2 cycles. Only 1 patient experienced grade 3 thrombocytopenia and neutropenia. Two patients suffered from grade 3 mucositis. Combination therapy with pralatrexate and bortezomib may be used as a salvage therapy for relapsed or refractory PTCL in the elderly with a favorable safety profile.