A phase 1/2 study of thiotepa-based immunochemotherapy in relapsed/refractory primary CNS lymphoma: the TIER trial
AuthorsFox, C. P.
Ali, A. S.
Jackson, A. E.
Hopkins, L. M.
Thomas, C. M.
Linton, K. M.
Collins, G. P.
Ferreri, A. J. M.
Davies, A. J.
Auer, D. P.
MetadataShow full item record
AbstractRelapsed or refractory primary central nervous system lymphoma (rrPCNSL) confers a poor prognosis with no accepted standard of care. Very few prospective studies have been conducted in this patient group. This study was a multicenter phase 1/2 study that investigated thiotepa in combination with ifosfamide, etoposide, and rituximab (TIER) for the treatment of PCNSL relapsed or refractory to high-dose methotrexate-based chemotherapy. A 3 + 3 design investigated the recommended phase 2 dose of thiotepa for a single-stage phase 2 cohort by assessing the activity of 2 cycles of TIER against rrPCNSL. The primary outcome was overall response rate. The dose-finding study demonstrated that 50 mg/m2 of thiotepa could be safely delivered within the TIER regimen. No dose-limiting toxicities were encountered in phase 1, and TIER was well-tolerated by the 27 patients treated in phase 2. The most common grade 3 to 4 toxicities were neutropenia (56% of patients) and thrombocytopenia (39%). An overall response was confirmed in 14 patients (52%), which met the prespecified threshold for clinically relevant activity. The median progression-free survival was 3 months (95% confidence interval [CI], 2 to 6 months) and overall survival 5 months (95% CI, 3 to 9 months). Exploratory analyses suggest a greater benefit for thiotepa-naïve patients. Six patients successfully completed autologous stem cell transplantation (ASCT) consolidation, with 4 experiencing durable remissions after a median follow-up of 50 months. The TIER regimen can be delivered safely and is active against rrPCNSL. When it is followed by ASCT, it can provide durable remission and long-term survival. However, for the majority of patients, prognosis remains poor, and novel treatment strategies are urgently needed. This trial was registered at https://www.clinicaltrialsregister.eu/ctr-search/search as EudraCT 2014-000227-24 and ISRCTN 12857473.
CitationFox CP, Ali AS, McIlroy G, Thust S, Martinez-Calle N, Jackson AE, et al. A phase 1/2 study of thiotepa-based immunochemotherapy in relapsed/refractory primary CNS lymphoma: the TIER trial [Internet]. Vol. 5, Blood Advances. American Society of Hematology; 2021. p. 4073–82.
- Chemoimmunotherapy with methotrexate, cytarabine, thiotepa, and rituximab (MATRix regimen) in patients with primary CNS lymphoma: results of the first randomisation of the International Extranodal Lymphoma Study Group-32 (IELSG32) phase 2 trial.
- Authors: Ferreri AJ, Cwynarski K, Pulczynski E, Ponzoni M, Deckert M, Politi LS, Torri V, Fox CP, Rosée PL, Schorb E, Ambrosetti A, Roth A, Hemmaway C, Ferrari A, Linton KM, Rudà R, Binder M, Pukrop T, Balzarotti M, Fabbri A, Johnson P, Gørløv JS, Hess G, Panse J, Pisani F, Tucci A, Stilgenbauer S, Hertenstein B, Keller U, Krause SW, Levis A, Schmoll HJ, Cavalli F, Finke J, Reni M, Zucca E, Illerhaus G, International Extranodal Lymphoma Study Group (IELSG).
- Issue date: 2016 May
- High-dose chemotherapy and autologous stem cell transplant compared with conventional chemotherapy for consolidation in newly diagnosed primary CNS lymphoma--a randomized phase III trial (MATRix).
- Authors: Schorb E, Finke J, Ferreri AJ, Ihorst G, Mikesch K, Kasenda B, Fritsch K, Fricker H, Burger E, Grishina O, Valk E, Zucca E, Illerhaus G
- Issue date: 2016 Apr 21
- Phase 2 trial of high-dose rituximab with high-dose cytarabine mobilization therapy and high-dose thiotepa, busulfan, and cyclophosphamide autologous stem cell transplantation in patients with central nervous system involvement by non-Hodgkin lymphoma.
- Authors: Chen YB, Batchelor T, Li S, Hochberg E, Brezina M, Jones S, Del Rio C, Curtis M, Ballen KK, Barnes J, Chi AS, Dietrich J, Driscoll J, Gertsner ER, Hochberg F, LaCasce AS, McAfee SL, Spitzer TR, Nayak L, Armand P
- Issue date: 2015 Jan 15
- High-dose chemotherapy with autologous haemopoietic stem cell transplantation for newly diagnosed primary CNS lymphoma: a prospective, single-arm, phase 2 trial.
- Authors: Illerhaus G, Kasenda B, Ihorst G, Egerer G, Lamprecht M, Keller U, Wolf HH, Hirt C, Stilgenbauer S, Binder M, Hau P, Edinger M, Frickhofen N, Bentz M, Möhle R, Röth A, Pfreundschuh M, von Baumgarten L, Deckert M, Hader C, Fricker H, Valk E, Schorb E, Fritsch K, Finke J
- Issue date: 2016 Aug
- Salvage chemoimmunotherapy with rituximab, ifosfamide and etoposide (R-IE regimen) in patients with primary CNS lymphoma relapsed or refractory to high-dose methotrexate-based chemotherapy.
- Authors: Mappa S, Marturano E, Licata G, Frezzato M, Frungillo N, Ilariucci F, Stelitano C, Ferrari A, Sorarù M, Vianello F, Baldini L, Proserpio I, Foppoli M, Assanelli A, Reni M, Caligaris-Cappio F, Ferreri AJ
- Issue date: 2013 Sep