PMID- 32639651 OWN - NLM STAT- MEDLINE DCOM- 20200914 LR - 20210403 IS - 1349-7006 (Electronic) IS - 1347-9032 (Print) IS - 1347-9032 (Linking) VI - 111 IP - 9 DP - 2020 Sep TI - A multicenter, open-label, phase II study of tirabrutinib (ONO/GS-4059) in patients with Waldenstrom's macroglobulinemia. PG - 3327-3337 LID - 10.1111/cas.14561 [doi] AB - Tirabrutinib is a second-generation Bruton's tyrosine kinase inhibitor with greater selectivity than ibrutinib. Here, we conducted a multicenter, phase II study of tirabrutinib in patients with treatment-naive (Cohort A) or with relapsed/refractory (Cohort B) Waldenstrom's macroglobulinemia (WM). Patients were treated with tirabrutinib 480 mg once daily. The primary endpoint was major response rate (MRR; >/= partial response). Secondary endpoints included overall response rate (ORR; >/= minor response), time to major response (TTMR), progression-free survival (PFS), overall survival (OS), and safety. In total, 27 patients (18 in Cohort A; 9 in Cohort B) were enrolled. The median age was 71 y, and the median serum immunoglobulin M level was 3600 mg/dL. Among the patients, 96.2% had the MYD88(L265P) mutation. MRR and ORR were 88.9% and 96.3%, respectively (Cohort A: MRR, 88.9%; ORR, 94.4%; Cohort B: MRR, 88.9%; ORR, 100%). Median TTMR was 1.87 mo. PFS and OS were not reached with a median follow-up of 6.5 and 8.3 mo for Cohorts A and B, respectively. The most common adverse events (AEs) were rash (44.4%), neutropenia (25.9%), and leukopenia (22.2%), with most AEs classified as grade 1 or 2. Grade >/= 3 AEs included neutropenia (11.1%), lymphopenia (11.1%), and leukopenia (7.4%). No grade 5 AEs were noted. All bleeding events were grade 1; none were associated with drug-related atrial fibrillation or hypertension. Although the follow-up duration was relatively short, the study met the primary endpoint. Therefore, tirabrutinib monotherapy is considered to be highly effective for both untreated and relapsed/refractory WM with a manageable safety profile. (JapicCTI-173646). CI - (c) 2020 The Authors. Cancer Science published by John Wiley & Sons Australia, Ltd on behalf of Japanese Cancer Association. FAU - Sekiguchi, Naohiro AU - Sekiguchi N AUID- ORCID: 0000-0001-9860-8257 AD - Department of Hematology, National Hospital Organization Disaster Medical Center, Tachikawa, Japan. FAU - Rai, Shinya AU - Rai S AD - Department of Hematology and Rheumatology, Faculty of Medicine, Kindai University, Osakasayama, Japan. FAU - Munakata, Wataru AU - Munakata W AD - Department of Hematology, National Cancer Center Hospital, Tokyo, Japan. FAU - Suzuki, Kenshi AU - Suzuki K AD - Department of Hematology, Japanese Red Cross Medical Center, Tokyo, Japan. FAU - Handa, Hiroshi AU - Handa H AD - Department of Hematology, Gunma University Graduate School of Medicine, Maebashi, Japan. FAU - Shibayama, Hirohiko AU - Shibayama H AD - Department of Hematology and Oncology, Osaka University Graduate School of Medicine, Suita, Japan. FAU - Endo, Tomoyuki AU - Endo T AD - Department of Hematology, Hokkaido University Hospital, Sapporo, Japan. FAU - Terui, Yasuhito AU - Terui Y AD - Department of Hematology Oncology, The Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan. FAU - Iwaki, Noriko AU - Iwaki N AD - Department of Hematology, Kanazawa University Hospital, Kanazawa, Japan. FAU - Fukuhara, Noriko AU - Fukuhara N AD - Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan. FAU - Tatetsu, Hiro AU - Tatetsu H AD - Department of Hematology, Kumamoto University Hospital, Kumamoto, Japan. FAU - Iida, Shinsuke AU - Iida S AUID- ORCID: 0000-0002-4951-960X AD - Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. FAU - Ishikawa, Takayuki AU - Ishikawa T AD - Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan. FAU - Shiibashi, Ryota AU - Shiibashi R AD - Department of Clinical Development, Ono Pharmaceutical Co., LTD., Osaka, Japan. FAU - Izutsu, Koji AU - Izutsu K AD - Department of Hematology, National Cancer Center Hospital, Tokyo, Japan. LA - eng GR - Ono Pharmaceutical/ PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study DEP - 20200720 PL - England TA - Cancer Sci JT - Cancer science JID - 101168776 RN - 0 (Biomarkers) RN - 0 (CXCR4 protein, human) RN - 0 (Imidazoles) RN - 0 (MYD88 protein, human) RN - 0 (Myeloid Differentiation Factor 88) RN - 0 (Protein Kinase Inhibitors) RN - 0 (Pyrimidines) RN - 0 (Receptors, CXCR4) RN - LXG44NDL2T (tirabrutinib) SB - IM EIN - Cancer Sci. 2021 Apr;112(4):1669. PMID: 33811719 MH - Aged MH - Aged, 80 and over MH - Biomarkers MH - Female MH - Genotype MH - Humans MH - Imidazoles/administration & dosage/adverse effects/*therapeutic use MH - Male MH - Middle Aged MH - Mutation MH - Myeloid Differentiation Factor 88/genetics/metabolism MH - Neoplasm Grading MH - Protein Kinase Inhibitors/administration & dosage/adverse effects/*therapeutic use MH - Pyrimidines/administration & dosage/adverse effects/*therapeutic use MH - Receptors, CXCR4/genetics/metabolism MH - Treatment Outcome MH - Waldenstrom Macroglobulinemia/diagnosis/*drug therapy/etiology PMC - PMC7469793 OTO - NOTNLM OT - B-cell malignancy OT - BTK inhibitor OT - Japanese OT - Waldenstrom's macroglobulinemia OT - tirabrutinib COIS- N. Sekiguchi has received research funding from Ono Pharmaceutical. W. Munakata has received research funding from Ono Pharmaceutical. H. Handa has received research funding from Ono Pharmaceutical. H. Shibayama has received honoraria from Takeda, Novartis, Celgene, Janssen, Chugai, and Kyowa Kirin; research funding from Janssen, Ono Pharmaceutical, Celgene, Novartis, Sanofi, AstraZeneca, AbbVie, and Chugai; and scholarship endowment from Astellas, Teijin, Shionogi, Eisai, Sanofi, Taiho, and Nippon Shinyaku. Y. Terui has received honoraria from Chugai, Celgene, Bristol-Myers Squibb, Novartis, Janssen, and Ono Pharmaceutical; and research funding from Bristol-Myers Squibb. N. Fukuhara has received honoraria from Chugai pharma and Kyowa Kirin; and research funding from AbbVie, Bayer, Chugai, Eisai, Gilead Sciences, Incyte, Ono Pharmaceutical, and Solasia. S. Iida has received honoraria from Ono Pharmaceutical, Takeda, Janssen, Celgene, Bristol-Myers Squibb, Daiichi Sankyo, and Sanofi; and research funding from Ono Pharmaceutical, Takeda, Bristol-Myers Squibb, MSD, Janssen, AbbVie, Kyowa Kirin, Chugai, and Sanofi. K. Izutsu has received honoraria from Kyowa Kirin and Eisai; and research funding from Celgene, Chugai, Novartis, Ono, Pharmaceutical, Bayer, Zenyaku Kogyo, Kyowa Kirin, AstraZeneca, Eisai, Incyte, AbbVie, Symbio, Janssen, and Yakult. The other authors have no relationships to disclose. This work was supported by Ono Pharmaceutical. The study sponsor was involved in study design, writing of the report, and in the decision to submit the article for publication. Study drug was provided by Ono Pharmaceutical. All authors had full access to all of the data in the study and had final responsibility for the decision to submit for publication. EDAT- 2020/07/09 06:00 MHDA- 2020/09/15 06:00 PMCR- 2020/09/01 CRDT- 2020/07/09 06:00 PHST- 2020/05/04 00:00 [received] PHST- 2020/06/23 00:00 [revised] PHST- 2020/06/30 00:00 [accepted] PHST- 2020/07/09 06:00 [pubmed] PHST- 2020/09/15 06:00 [medline] PHST- 2020/07/09 06:00 [entrez] PHST- 2020/09/01 00:00 [pmc-release] AID - CAS14561 [pii] AID - 10.1111/cas.14561 [doi] PST - ppublish SO - Cancer Sci. 2020 Sep;111(9):3327-3337. doi: 10.1111/cas.14561. Epub 2020 Jul 20.