Tafasitamab
(Synonyms: XmAb5574; MOR00208; Tafasitamab-cxix) 目录号 : GC65433
Tafasitamab (XmAb5574) 是一种 Fc 修饰的人源化单克隆抗体，可与人 B 细胞表面抗原 CD19 结合。
Cas No.:1422527-84-1
Sample solution is provided at 25 µL, 10mM.
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Tafasitamab (XmAb5574) is an Fc-modified, humanized monoclonal antibody that binds to the human B-cell surface antigenCD19[1][2].
Tafasitamab (XmAb5574) induces cytotoxicity against Mino and Jeko (MCL) cell lines in an E/T ratio-dependent manner. Tafasitamab (XmAb5574) increases ADCP and antiproliferative activity. Tafasitamab (XmAb5574) enhances antiproliferative apoptotic activity due to caspase-induced apoptosis[1][2].
Tafasitamab (SC, once on Day 1, 2.5 μg/kg) inhibits lymphoma growth in disseminated BL mouse xenograft tumor models[1].
[1]. Jung Hyun Her, et al. Tafasitamab mediates killing of B-cell non-Hodgkin's lymphoma in combination with γδ T cell or allogeneic NK cell therapy. Cancer Immunol Immunother. 2022 Mar 29.
[2]. Holly M Horton, et al. Potent in vitro and in vivo activity of an Fc-engineered anti-CD19 monoclonal antibody against lymphoma and leukemia. Cancer Res
| Cas No. | 1422527-84-1 | SDF | Download SDF |
| 别名 | XmAb5574; MOR00208; Tafasitamab-cxix | ||
| 分子式 | 分子量 | ||
| 溶解度 | 储存条件 | Store at -20°C | |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
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Tafasitamab plus lenalidomide in relapsed or refractory diffuse large B-cell lymphoma (L-MIND): a multicentre, prospective, single-arm, phase 2 study
Lancet Oncol 2020 Jul;21(7):978-988.PMID:32511983DOI:10.1016/S1470-2045(20)30225-4.
Background: Patients with relapsed or refractory diffuse large B-cell lymphoma who are ineligible for autologous stem-cell transplantation have poor outcomes and few treatment options. Tafasitamab (MOR208) is an Fc-enhanced, humanised, anti-CD19 monoclonal antibody that has shown preclinical and single-agent activity in patients with relapsed or refractory B-cell malignancies. Preclinical data suggested that Tafasitamab might act synergistically with lenalidomide. We aimed to assess the antitumour activity and safety of Tafasitamab plus lenalidomide in patients with relapsed or refractory diffuse large B-cell lymphoma who were ineligible for autologous stem-cell transplantation. Methods: In this multicentre, open-label, single-arm, phase 2 study (L-MIND), patients older than 18 years with histologically confirmed diffuse large B-cell lymphoma, who relapsed or had refractory disease after previous treatment with one to three systemic regimens (with at least one anti-CD20 therapy), were not candidates for high-dose chemotherapy and subsequent autologous stem-cell transplantation, had an Eastern Cooperative Oncology Group performance status of 0-2, and had measurable disease at baseline were recruited from 35 academic and community hospitals in ten countries. Patients received coadministered intravenous Tafasitamab (12 mg/kg) and oral lenalidomide (25 mg/day) for up to 12 cycles (28 days each), followed by Tafasitamab monotherapy (in patients with stable disease or better) until disease progression. The primary endpoint was the proportion of patients with an objective response (centrally assessed), defined as a complete or partial response according to the 2007 International Working Group response criteria for malignant lymphoma. Antitumour activity analyses are based on all patients who received at least one dose of both Tafasitamab and lenalidomide; safety analyses are based on all patients who received at least one dose of either study medication. Recruitment is complete, and the trial is in follow-up. This trial is registered with ClinicalTrials.gov, NCT02399085. Findings: Between Jan 18, 2016, and Nov 15, 2017, 156 patients were screened: 81 were enrolled and received at least one dose of either study medication, and 80 received at least one dose of both Tafasitamab and lenalidomide. Median follow-up was 13·2 months (IQR 7·3-20·4) as of data cutoff on Nov 30, 2018. 48 (60%; 95% CI 48-71) of 80 patients who received Tafasitamab plus lenalidomide had an objective response: 34 (43%; 32-54) had a complete response and 14 (18%; 10-28) had a partial response. The most common treatment-emergent adverse events of grade 3 or worse were neutropenia (39 [48%] of 81 patients), thrombocytopenia (14 [17%]), and febrile neutropenia (ten [12%]). Serious adverse events occurred in 41 (51%) of 81 patients. The most frequently reported serious adverse events (in two or more patients) were pneumonia (five [6%]), febrile neutropenia (five [6%]), pulmonary embolism (three [4%]), bronchitis (two [2%]), atrial fibrillation (two [2%]), and congestive cardiac failure (two [2%]). Interpretation: Tafasitamab in combination with lenalidomide was well tolerated and resulted in a high proportion of patients with relapsed or refractory diffuse large B-cell lymphoma ineligible for autologous stem-cell transplantation having a complete response, and might represent a new therapeutic option in this setting. Funding: MorphoSys.
Long-term outcomes from the Phase II L-MIND study of Tafasitamab (MOR208) plus lenalidomide in patients with relapsed or refractory diffuse large B-cell lymphoma
Haematologica 2021 Sep 1;106(9):2417-2426.PMID:34196165DOI:10.3324/haematol.2020.275958.
Tafasitamab (MOR208), an Fc-modified, humanized, anti-CD19 monoclonal antibody, combined with the immunomodulatory drug lenalidomide was clinically active with a good tolerability profile in the open-label, single-arm, phase II L-MIND study of patients with relapsed/refractory diffuse large B-cell lymphoma (DLBCL) ineligible for autologous stem-cell transplantation. To assess long-term outcomes, we report an updated analysis with ≥35 months' follow-up. Patients were aged >18 years, had received one to three prior systemic therapies (including ≥1 CD20-targeting regimen) and Eastern Cooperative Oncology Group performance status 0-2. Patients received 28-day cycles of Tafasitamab (12 mg/kg intravenously), once weekly during cycles 1-3, then every 2 weeks during cycles 4-12. Lenalidomide (25 mg orally) was administered on days 1-21 of cycles 1-12. After cycle 12, progression-free patients received Tafasitamab every 2 weeks until disease progression. The primary endpoint was best objective response rate. After ≥35 months' follow-up (data cut-off: October 30, 2020), the objective response rate was 57.5% (n=46/80), including a complete response in 40.0% of patients (n=32/80) and a partial response in 17.5% of patients (n=14/80). The median duration of response was 43.9 months (95% confidence interval [95% CI]: 26.1-not reached), the median overall survival was 33.5 months (95% CI: 18.3-not reached) and the median progression-free survival was 11.6 months (95% CI: 6.3-45.7). There were no unexpected toxicities. Subgroup analyses revealed consistent long-term efficacy results across most subgroups of patients. This extended follow-up of L-MIND confirms the long duration of response, meaningful overall survival, and well-defined safety profile of Tafasitamab plus lenalidomide followed by Tafasitamab monotherapy in patients with relapsed/refractory diffuse large B-cell lymphoma ineligible for autologous stem cell transplantation. ClinicalTrials.gov identifier: NCT02399085.
Tafasitamab: First Approval
Drugs 2020 Nov;80(16):1731-1737.PMID:32946059DOI:10.1007/s40265-020-01405-w.
Tafasitamab (tafasitamab-cxix; MONJUVI®) is an Fc-modified (i.e. two amino acid substitutions within the Fc region, resulting in increased Fcγ receptor affinity), humanized, anti-CD19 monoclonal antibody. Developed by MorphoSys AG, under a license from Xencor, it received accelerated approval (in July 2020) for use in combination with lenalidomide as a treatment for adults with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) not otherwise specified, including DLBCL arising from low grade lymphoma, and who are not eligible for autologous stem cell transplantation (ASCT). It is the first therapy to be approved as a second-line treatment for this patient population in the USA. The recommended dose of Tafasitamab is 12 mg per kg of bodyweight, administered via an intravenous infusion. A regulatory assessment for Tafasitamab plus lenalidomide for the treatment of adults with relapsed or refractory DLBCL is currently underway in the EU. Tafasitamab is also being clinically investigated as a therapeutic option in various other B-cell malignancies, including follicular lymphoma and other indolent non-Hodgkin's lymphoma. This article summarizes the milestones in the development of Tafasitamab leading to this first approval for its use in combination with lenalidomide in adults with relapsed or refractory DLBCL.
Tafasitamab for the treatment of relapsed or refractory diffuse large B-cell lymphoma
Expert Opin Biol Ther 2021 Apr;21(4):455-463.PMID:33554668DOI:10.1080/14712598.2021.1884677.
Introduction: Patients with relapsed or refractory diffuse large B-cell lymphoma (R/R DLBCL) require further treatment options, especially in cases that cannot tolerate stem cell transplant or cytotoxic chemotherapy. CD19 has emerged as an attractive target in B-cell malignancy and is the subject of several therapeutic strategies. The anti-CD19, humanized, monoclonal antibody Tafasitamab (MOR208) has an engineered, modified Fc region with increased affinity for Fcγ receptors, leading to increased cytotoxicity via natural killer cells and macrophages (antibody-dependent cellular cytotoxicity and antibody-dependent cell-mediated phagocytosis) in a promising approach. Areas covered: The development of Tafasitamab is reviewed, together with the pharmacokinetics and clinical experience of Tafasitamab in R/R DLBCL; clinical data have led to FDA approval and inclusion in NCCN treatment guidelines for Tafasitamab in combination with lenalidomide in this indication. Expert opinion: Patients with R/R DLBCL who have failed rituximab-containing regimens may be resistant to CD20-directed therapies; therefore, therapies with an alternative mode of action are of great interest in this setting. Tafasitamab, an anti-CD19 monoclonal antibody, in combination with lenalidomide has demonstrated promising efficacy for patients with R/R DLBCL who are ineligible for autologous stem cell transplantation. This could provide an alternative approach to classical chemotherapy-based regimens in the relapsed setting.
Tafasitamab Plus Lenalidomide Versus 3 Rituximab-Based Treatments for Non-Transplant Eligible Relapsed/Refractory Diffuse Large B-Cell Lymphoma: A Matching-Adjusted Indirect Comparison
Adv Ther 2022 Jun;39(6):2668-2687.PMID:35403948DOI:10.1007/s12325-022-02094-5.
Introduction: Tafasitamab plus lenalidomide (TAFA + LEN) received accelerated US Food and Drug Administration approval and conditional European Medicines Agency approval for treatment of adults with relapsed or refractory diffuse large B-cell lymphoma (R/R DLBCL) not eligible for autologous stem cell transplant. This study investigates the relative efficacy of TAFA + LEN versus comparator treatments. Methods: Matching-adjusted indirect comparisons (MAICs) of TAFA + LEN were performed using data from L-MIND, and comparator studies assessing rituximab-based combination therapies, including polatuzumab vedotin + bendamustine + rituximab (POLA + BR) bendamustine + rituximab (BR), and gemcitabine + oxaliplatin + rituximab (R-GEMOX) to provide relative efficacy estimates for overall survival (OS), progression-free survival (PFS), duration of response (DOR), objective response rate (ORR), and complete response rate (CRR). Patient-level data from L-MIND were weighted to match reported distributions of clinically validated prognostic factors and effect modifiers in comparator trials. MAIC results versus multiple BR studies were pooled using meta-analysis. Results: MAICs were feasible versus POLA + BR and BR. Compared to POLA + BR, TAFA + LEN was associated with significantly longer DOR [hazard ratio (HR) 0.34 (95% CI 0.12, 0.98); p = 0.045]. Due to concerns about the proportional hazard assumption for OS and PFS, separate HRs were estimated before and after 4 months of follow-up. OS after 4 months, was significantly greater for TAFA + LEN versus POLA + BR [HR 0.41 (95% CI 0.19, 0.90); p = 0.026]. Compared with BR, TAFA + LEN was associated with significantly improved OS [GO29365 comparator trial: HR 0.39 (95% CI 0.18, 0.82); p = 0.014], PFS (pooled data: HR 0.39 (95% CI 0.29, 0.53); p < 0.001], DOR [pooled data: HR 0.35 (95% CI 0.25, 0.50); p < 0.001], and CRR [pooled data: odds ratio 2.43 (95% CI 1.33, 4.41); p = 0.004]. Conclusion: In MAIC analyses, treatment with TAFA + LEN for R/R DLBCL provided better OS and PFS outcomes than standard treatment regimens. Validation from large, randomized, phase 3 clinical trials is required to confirm these results.