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- Title
Combination Therapy with Rituximab and Temozolomide for Recurrent and Refractory Primary Central Nervous System Lymphoma.
- Authors
Mineko Murakami; Takamitsu Fujimaki; Shuichiro Asano; Hiroshi Nakaguchi; Yamada, Shoko M.; Katsumi Hoya; Kazuto Yamazaki; Yasuo Ishida; Akira Matsuno
- Abstract
High-dose methotrexate-based chemotherapy has extended survival in patients with primary central nervous system lymphoma (PCNSL). However, although salvage treatment is necessary in recurrent and refractory PCNSL, this has not been standardized. We herein describe the efficacy of a combination of rituximab and temozolomide (TMZ) in two consecutive patients with recurrent and refractory PCNSL. Based on the immunohistochemical study, case 1 had a non-germinal 6 center B-cell-like (non-GCB) subtype, was positive for bcl-2 and negative for O6-methylguanine-DNA methyltransferase (MGMT). Case 2 was GCB subtype, bcl- 2-, and MGMT+. Because of the positive expression of MGMT, interferon-beta was additionally given in case 2. Complete responses and partial responses were obtained after the third and fourth cycles of combination therapy, respectively. This was maintained for 12 months, with acceptable toxicity. The combination of rituximab and TMZ was effective in tumors with different immunohistochemical profiles. This combination therapy warrants further study in a larger population.
- Publication
Yonsei Medical Journal, 2011, Vol 52, Issue 6, p1031
- ISSN
0513-5796
- Publication type
Academic Journal
- DOI
10.3349/ymj.2011.52.6.1031