Bemarituzumab
(Synonyms: 贝玛妥珠单抗) 目录号 : GC65516
Bemarituzumab 是一种针对 FGFR2b (一种 FGF 受体) 的首创的人源化 IgG1 单克隆抗体。Bemarituzumab 阻止成纤维细胞生长因子结合和激活 FGFR2b。Bemarituzumab 具有用于癌症研究的潜力。
Cas No.:1952272-74-0
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
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Purity: >98.00%
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- Datasheet
Bemarituzumab is a first-in-class, humanized IgG1 monoclonal antibody against FGFR2b (a FGF receptor). Bemarituzumab blocks fibroblast growth factors from binding and activating FGFR2b. Bemarituzumab has the potential for cancer research[1].
[1]. Daniel Vt Catenacci, et al. Bemarituzumab with modified FOLFOX6 for advanced FGFR2-positive gastroesophageal cancer: FIGHT Phase III study design. Future Oncol. 2019 Jun;15(18):2073-2082.
| Cas No. | 1952272-74-0 | SDF | Download SDF |
| 别名 | 贝玛妥珠单抗 | ||
| 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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| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
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工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
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3. 以上所有助溶剂都可在 GlpBio 网站选购。
Bemarituzumab in patients with FGFR2b-selected gastric or gastro-oesophageal junction adenocarcinoma (FIGHT): a randomised, double-blind, placebo-controlled, phase 2 study
Lancet Oncol 2022 Nov;23(11):1430-1440.PMID:36244398DOI:10.1016/S1470-2045(22)00603-9.
Background: Outcomes are poor in patients with HER2-negative, advanced gastric or gastro-oesophageal junction adenocarcinomas. In this study, we investigated efficacy and safety of the first-in-class, afucosylated, humanised IgG1 anti-fibroblast growth factor receptor 2 isoform IIb (FGFR2b) monoclonal antibody Bemarituzumab with modified 5-fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) in patients with FGFR2b-selected gastric or gastro-oesophageal junction adenocarcinoma. Methods: In the randomised, double-blind, placebo-controlled phase 2 trial (FIGHT), patients aged 18 years and older with HER2 non-positive, FGFR2b-selected gastric or gastro-oesophageal junction adenocarcinoma, and an Eastern Cooperative Oncology Group performance status of 0-1 were recruited from 144 clinical sites across 17 countries. Patients with previous treatment with any selective inhibitor of the FGF-FGFR pathway were excluded. Eligible patients were randomly assigned (1:1), using permuted-block randomisation (block size of four) and a central interactive voice-web-based response system, stratified by geographical region, previous treatment with curative intent, and administration of mFOLFOX6 while being screened for FGFR2b status, to either Bemarituzumab (15 mg/kg of bodyweight) or matched placebo intravenously every 2 weeks. All patients also received mFOLFOX6 (oxaliplatin 85 mg/m2, leucovorin 400 mg/m2, and 5-fluorouracil as a 400 mg/m2 bolus followed by 2400 mg/m2 over approximately 46 h) intravenously every 2 weeks. Patients were given treatment until disease progression (defined by Response Evaluation Criteria in Solid Tumours [RECIST] version 1.1), unacceptable toxicity, withdrawal of consent, or death. The primary endpoint was progression-free survival in the intention-to-treat population (defined as all patients randomly assigned to treatment). Safety was assessed in all patients who received at least one dose of assigned treatment. This study is registered with ClinicalTrials.gov, NCT03694522, and is now complete. Findings: Between Nov 14, 2017, and May 8, 2020, 910 patients were screened and 155 were randomly assigned to the Bemarituzumab (n=77) or placebo group (n=78). Median age was 60·0 years (IQR 51·0-67·0), 44 (28%) participants were women, 111 (72%) were men, 89 (57%) were Asian, and 61 (39%) were White. At the time of the primary analysis and at a median follow-up of 10·9 months (IQR 6·3-14·2), median progression-free survival was 9·5 months (95% CI 7·3-12·9) in the Bemarituzumab group and 7·4 months (5·8-8·4) in the placebo group (hazard ratio [HR] 0·68 [95% CI 0·44-1·04; p=0·073). Common grade 3 or worse adverse events were decreased neutrophil count (23 [30%] of 76 in the Bemarituzumab group vs 27 [35%] of 77 in the placebo group), cornea disorder (18 [24%] vs none), neutropenia (ten [13%] vs seven [9%]), stomatitis (seven [9%] vs one [1%]), and anaemia (six [8%] vs ten [13%]). Serious treatment-emergent adverse events were reported in 24 (32%) patients in the Bemarituzumab group and 28 (36%) in the placebo group. Serious mFOLFOX6 treatment-related adverse events occurred in nine (12%) patients in the Bemarituzumab group and in 15 (19%) patients in the placebo group. All-grade corneal events (adverse events of special interest) occurred in 51 (67%) patients in the Bemarituzumab group and eight (10%) in the placebo group; grade 3 corneal events were reported only in 18 (24%) patients in the Bemarituzumab group. Treatment-related deaths occurred in three patients in the Bemarituzumab group (two due to sepsis, one due to pneumonia) and none in the placebo group. Interpretation: In this exploratory phase 2 study, despite no statistically significant improvement in progression-free survival, treatment with Bemarituzumab showed promising clinical efficacy. Confirmatory phase 3 trials of Bemarituzumab plus mFOLFOX6 powered to demonstrate statistical significance are being investigated in patients with previously untreated, FGFR2b-overexpressing, advanced gastric or gastro-oesophageal junction adenocarcinoma. Funding: Five Prime Therapeutics.
Bemarituzumab with modified FOLFOX6 for advanced FGFR2-positive gastroesophageal cancer: FIGHT Phase III study design
Future Oncol 2019 Jun;15(18):2073-2082.PMID:31094225DOI:10.2217/fon-2019-0141.
Bemarituzumab is an afucosylated monoclonal antibody against FGFR2b (a FGF receptor) with demonstrated monotherapy clinical activity in patients with late-line gastric cancer whose tumors overexpress FGFR2b (NCT02318329). We describe the rationale and design of the FIGHT trial (NCT03343301), a global, randomized, double-blind, placebo-controlled Phase III study evaluating the role of Bemarituzumab in patients with previously untreated, FGFR2b-overexpressing advanced gastroesophageal cancer. Patients are randomized in a blinded fashion to the combination of mFOLFOX6 and Bemarituzumab or mFOLFOX6 and placebo. Eligible patients are selected based on the presence of either FGFR2b protein overexpression determined by immunohistochemistry or FGFR2 gene amplification determined by circulating tumor DNA. The primary end point is overall survival, and secondary end points include progression-free survival, objective response rate and safety.
Preclinical characterization of Bemarituzumab, an anti-FGFR2b antibody for the treatment of cancer
MAbs 2021 Jan-Dec;13(1):1981202.PMID:34719330DOI:10.1080/19420862.2021.1981202.
Bemarituzumab (FPA144) is a first-in-class, humanized, afucosylated immunoglobulin G1 monoclonal antibody (mAb) directed against fibroblast growth factor receptor 2b (FGFR2b) with two mechanisms of action against FGFR2b-overexpressing tumors: inhibition of FGFR2b signaling and enhanced antibody-dependent cell-mediated cytotoxicity (ADCC). Bemarituzumab is being developed as a cancer therapeutic, and we summarize here the key nonclinical data that supported moving it into clinical trials. Bemarituzumab displayed sub-nanomolar cross-species affinity for FGFR2b receptors, with >20-fold enhanced binding affinity to human Fc gamma receptor IIIa compared with the fucosylated version. In vitro, Bemarituzumab induced potent ADCC against FGFR2b-expressing tumor cells, and inhibited FGFR2 phosphorylation and proliferation of SNU-16 gastric cancer cells in a concentration-dependent manner. In vivo, Bemarituzumab inhibited tumor growth through inhibition of the FGFR2b pathway and/or ADCC in mouse models. Bemarituzumab demonstrated enhanced anti-tumor activity in combination with chemotherapy, and due to bemarituzumab-induced natural killer cell-dependent increase in programmed death-ligand 1, also resulted in enhanced anti-tumor activity when combined with an anti-programmed death-1 antibody. Repeat-dose toxicity studies established the highest non-severely-toxic dose at 1 and 100 mg/kg in rats and cynomolgus monkeys, respectively. In pharmacokinetic (PK) studies, Bemarituzumab exposure increase was greater than dose-proportional, with the linear clearance in the expected dose range for a mAb. The PK data in cynomolgus monkeys were used to project Bemarituzumab linear PK in humans, which were consistent with the observed human Phase 1 data. These key nonclinical studies facilitated the successful advancement of Bemarituzumab into the clinic.
Bemarituzumab Is Active in FGFR2b-High Gastroesophageal Adenocarcinoma
Cancer Discov 2020 May;10(5):638.PMID:32220925DOI:10.1158/2159-8290.CD-RW2020-045.
The FGFR2b inhibitor Bemarituzumab was effective in high-FGFR2b gastroesophageal adenocarcinoma.
Advances in the treatment of gastric cancer: 2020-2021
Curr Opin Gastroenterol 2021 Nov 1;37(6):615-618.PMID:34456227DOI:10.1097/MOG.0000000000000776.
Purpose of review: To review studies from 2020 to 2021 in esophagogastric cancer. Recent findings: After up front D2 gastrectomy for lymph node-positive gastric cancer, 6 months of adjuvant chemotherapy with S-1 and oxaliplatin achieved superior disease-free survival (DFS) compared with 1 year of S-1. The addition of adjuvant radiotherapy, however, added no benefit. After chemoradiotherapy and surgery in esophageal and gastroesophageal junction cancer, in patients with residual disease found at surgery, 1 year of adjuvant nivolumab substantially improved DFS compared with observation alone, leading to regulatory approval for adjuvant nivolumab. In metastatic esophagogastric cancer, the addition of either pembrolizumab or nivolumab to first-line chemotherapy improved response, disease free, and overall survival with the greatest survival benefit dependent on programmed death receptor ligand, programmed death receptor ligand -1 status, leading to regulatory approval for these agents. A preliminary report of a phase 3 trial adding pembrolizumab to first-line chemotherapy with trastuzumab in HER2-positive gastric cancer reported a significant improvement in response, leading to regulatory approval for pembrolizumab. The fibroblast growth factor receptor appears to be a promising new target in gastroesophageal cancer based on phase 2 data for Bemarituzumab. Summary: Optimal adjuvant chemotherapy after D2 resection of node-positive gastric cancer is 6 months of a fluorinated pyrimidine and oxaliplatin, with no benefit for adjuvant radiotherapy. Adjuvant nivolumab after resection of esophageal cancer after chemoradiotherapy improves DFS and is a new care standard. Pembrolizumab added to first-line chemotherapy in both HER2-positive and negative esophagogastric cancer improves outcome and is a new standard of care. Nivolumab added to first-line chemotherapy in HER2-negative gastric cancer improves treatment outcome and is a new care standard.