Th purpose of this study is to determine whether ADI-PEG20 (PEGylated arginine deiminase), an arginine catabolizing enzyme preparation, improves insulin sensitivity, mitochondrial respiration, and energy utilization in adolescents with prediabetes.

开始日期2024-07-01

申办/合作机构

Washington University School of Medicine

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项与 Polaris Pharmaceuticals, Inc. 相关的文献（医药）

2024-11-01·Molecular Metabolism

Arginine deprivation/citrulline augmentation with ADI-PEG20 as novel therapy for complications in type 2 diabetes

Article

作者: Bomalaski, John S ; Caldwell, Ruth B ; Abdelrahman, Ammar A. ; Caldwell, Robert W. ; Bomalaski, John S. ; Abdelrahman, Ammar A ; Caldwell, Robert W ; Xu, Zhimin ; Caldwell, Ruth B. ; Sandow, Porsche V. ; Rojas, Modesto ; Wang, Jing ; Lemtalsi, Tahira ; Sandow, Porsche V

OBJECTIVE:

Chronic inflammation and oxidative stress mediate the pathological progression of diabetic complications, like diabetic retinopathy (DR), peripheral neuropathy (DPN) and impaired wound healing. Studies have shown that treatment with a stable form of arginase 1 that reduces l-arginine levels and increases ornithine and urea limits retinal injury and improves visual function in DR. We tested the therapeutic efficacy of PEGylated arginine deiminase (ADI-PEG20) that depletes l-arginine and elevates l-citrulline on diabetic complications in the db/db mouse model of type 2 diabetes (T2D).

METHODS:

Mice received intraperitoneal (IP), intramuscular (IM), or intravitreal (IVT) injections of ADI-PEG20 or PEG20 as control. Effects on body weight, fasting blood glucose levels, blood-retinal-barrier (BRB) function, visual acuity, contrast sensitivity, thermal sensitivity, and wound healing were determined. Studies using bone marrow-derived macrophages (BMDM) examined the underlying signaling pathway.

RESULTS:

Systemic injections of ADI-PEG20 reduced body weight and blood glucose and decreased oxidative stress and inflammation in db/db retinas. These changes were associated with improved BRB and visual function along with thermal sensitivity and wound healing. IVT injections of either ADI-PEG20, anti-VEGF antibody or their combination also improved BRB and visual function. ADI-PEG20 treatment also prevented LPS/IFNℽ-induced activation of BMDM in vitro as did depletion of l-arginine and elevation of l-citrulline.

CONCLUSIONS/INTERPRETATION:

ADI-PEG20 treatment limited signs of DR and DPN and enhanced wound healing in db/db mice. Studies using BMDM suggest that the anti-inflammatory effects of ADI-PEG20 involve blockade of the JAK2-STAT1 signaling pathway via l-arginine depletion and l-citrulline production.

2024-04-01·JAMA oncology

Pegargiminase Plus First-Line Chemotherapy in Patients With Nonepithelioid Pleural Mesothelioma

Article

作者: de Marinis, Filippo ; Olevsky, Olga ; Sheaff, Michael ; Grosso, Federica ; Nolan, Luke ; MacKean, Melanie ; Szlosarek, Peter W. ; Tsao, Anne ; Srivastav, Ratnesh ; Roy, Amy ; Steele, Jeremy ; Wang, Chin-Chou ; Karapetis, Christos ; Zauderer, Marjorie G. ; O’Byrne, Kenneth J. ; Stella, Maria Giulia ; Gilligan, David ; Shaw, Paul ; Chong, Inn-Wen ; Bomalaski, John ; Johnston, Amanda ; Kindler, Hedy ; Papadatos-Pastos, Dionysis ; Franks, Kevin ; Taylor, Paul ; Ceresoli, Giovanni L. ; Lind, Michael J. ; Fennell, Dean A. ; Zilembo, Nicoletta ; Steele, Nicola ; Cortinovis, Diego ; Kuo, Chih-Ling ; John, Thomas ; Creelan, Benjamin C. ; Rolfo, Christian D. ; Mansfield, Aaron S. ; Shiu, Chiung-Fang ; Sarkodie, Thomas ; Chitnis, Meenali ; Upadhyay, Sunil ; Mencoboni, Manlio ; Chella, Antonio ; Rybkin, Igor I. ; Nowak, Anna K.

Importance:

Arginine deprivation using ADI-PEG20 (pegargiminase) combined with chemotherapy is untested in a randomized study among patients with cancer. ATOMIC-Meso (ADI-PEG20 Targeting of Malignancies Induces Cytotoxicity-Mesothelioma) is a pivotal trial comparing standard first-line chemotherapy plus pegargiminase or placebo in patients with nonepithelioid pleural mesothelioma.

Objective:

To determine the effect of pegargiminase-based chemotherapy on survival in nonepithelioid pleural mesothelioma, an arginine-auxotrophic tumor.

Design, Setting, and Participants:

This was a phase 2-3, double-blind randomized clinical trial conducted at 43 centers in 5 countries that included patients with chemotherapy-naive nonepithelioid pleural mesothelioma from August 1, 2017, to August 15, 2021, with at least 12 months’ follow-up. Final follow-up was on August 15, 2022. Data analysis was performed from March 2018 to June 2023.

Intervention:

Patients were randomly assigned (1:1) to receive weekly intramuscular pegargiminase (36.8 mg/m2) or placebo. All patients received intravenous pemetrexed (500 mg/m2) and platinum (75-mg/m2 cisplatin or carboplatin area under the curve 5) chemotherapy every 3 weeks up to 6 cycles. Pegargiminase or placebo was continued until progression, toxicity, or 24 months.

Main Outcomes and Measures:

The primary end point was overall survival, and secondary end points were progression-free survival and safety. Response rate by blinded independent central review was assessed in the phase 2 portion only.

Results:

Among 249 randomized patients (mean [SD] age, 69.5 [7.9] years; 43 female individuals [17.3%] and 206 male individuals [82.7%]), all were included in the analysis. The median overall survival was 9.3 months (95% CI, 7.9-11.8 months) with pegargiminase-chemotherapy as compared with 7.7 months (95% CI, 6.1-9.5 months) with placebo-chemotherapy (hazard ratio [HR] for death, 0.71; 95% CI, 0.55-0.93; P = .02). The median progression-free survival was 6.2 months (95% CI, 5.8-7.4 months) with pegargiminase-chemotherapy as compared with 5.6 months (95% CI, 4.1-5.9 months) with placebo-chemotherapy (HR, 0.65; 95% CI, 0.46-0.90; P = .02). Grade 3 to 4 adverse events with pegargiminase occurred in 36 patients (28.8%) and with placebo in 21 patients (16.9%); drug hypersensitivity and skin reactions occurred in the experimental arm in 3 patients (2.4%) and 2 patients (1.6%), respectively, and none in the placebo arm. Rates of poststudy treatments were comparable in both arms (57 patients [45.6%] with pegargiminase vs 58 patients [46.8%] with placebo).

Conclusions and Relevance:

In this randomized clinical trial of arginine depletion with pegargiminase plus chemotherapy, survival was extended beyond standard chemotherapy with a favorable safety profile in patients with nonepithelioid pleural mesothelioma. Pegargiminase-based chemotherapy as a novel antimetabolite strategy for mesothelioma validates wider clinical testing in oncology.

Trial Registration:

ClinicalTrials.gov Identifier: NCT02709512

2023-08-15·Clinical cancer research : an official journal of the American Association for Cancer Research

Discovery and Targeting of a Noncanonical Mechanism of Sarcoma Resistance to ADI-PEG20 Mediated by the Microenvironment.

Article

作者: Hu, Zhixian ; White, Eileen P ; Lin, Zongtao ; Dehner, Carina A ; Shoghi, Kooresh I ; Kremer, Jeff C ; Chrisinger, John S A ; Brashears, Caitlyn B ; Garcia, Benjamin A ; Oyama, Toshinao ; Bomalaski, John S ; Baker, Adriana ; Rogers, Leonard C ; Fettig, Nicole ; Van Tine, Brian A ; Zhou, Dong ; Bastos, Alliny C S

PURPOSE:

Many cancers lack argininosuccinate synthetase 1 (ASS1), the rate-limiting enzyme of arginine biosynthesis. This deficiency causes arginine auxotrophy, targetable by extracellular arginine-degrading enzymes such as ADI-PEG20. Long-term tumor resistance has thus far been attributed solely to ASS1 reexpression. This study examines the role of ASS1 silencing on tumor growth and initiation and identifies a noncanonical mechanism of resistance, aiming to improve clinical responses to ADI-PEG20.

EXPERIMENTAL DESIGN:

Tumor initiation and growth rates were measured for a spontaneous Ass1 knockout (KO) murine sarcoma model. Tumor cell lines were generated, and resistance to arginine deprivation therapy was studied in vitro and in vivo.

RESULTS:

Conditional Ass1 KO affected neither tumor initiation nor growth rates in a sarcoma model, contradicting the prevalent idea that ASS1 silencing confers a proliferative advantage. Ass1 KO cells grew robustly through arginine starvation in vivo, while ADI-PEG20 remained completely lethal in vitro, evidence that pointed toward a novel mechanism of resistance mediated by the microenvironment. Coculture with Ass1-competent fibroblasts rescued growth through macropinocytosis of vesicles and/or cell fragments, followed by recycling of protein-bound arginine through autophagy/lysosomal degradation. Inhibition of either macropinocytosis or autophagy/lysosomal degradation abrogated this growth support effect in vitro and in vivo.

CONCLUSIONS:

Noncanonical, ASS1-independent tumor resistance to ADI-PEG20 is driven by the microenvironment. This mechanism can be targeted by either the macropinocytosis inhibitor imipramine or the autophagy inhibitor chloroquine. These safe, widely available drugs should be added to current clinical trials to overcome microenvironmental arginine support of tumors and improve patient outcomes.

项与 Polaris Pharmaceuticals, Inc. 相关的新闻（医药）

2024-09-23

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迪瑞药业——助力早期项目商业化

助力早期项目商业化「迪瑞药业」生物发酵• 多肽制造 • 化学合成迪瑞药业成立于2013年，占地面积超过45000㎡，已竣工的建筑面积约30000㎡。迪瑞药业是Polaris Pharmaceuticals在中国大陆建立的GMP生产工厂，在微生物发酵、多肽制造和化学药物合成领域，向全球客户提供CDMO服务。我们建立了小试、中试和规模化生产平台，为客户提供灵活、经济和高效的解决方案。我们的运营基于一个健全、稳定的GMP质量管理体系，确保建立严格的质量控制和产品放行标准，以满足NMPA/FDA/EMA法规要求。解决方案 CDMO Solutions Dedicate Reliable Economical 我们拥有成熟的E.coli 表达生产体系，建成了多肽药物合成和发酵双平台，可提供完整的上、下游及制剂生产服务；我们致力于帮助客户推进项目从早期开发到商业化的全过程，提供IND/NDA/BLA申报配套服务。优质 • 可靠 • 经济＜生物平台＞ 5L~500L 发酵罐 / 生物反应器＜多肽合成平台＞ 10L-100L 反应釜年产API 75kg ＜制剂平台＞西林瓶液体制剂西林瓶冻干制剂卡式瓶 / PFS 我们已成功向美国、欧洲、澳洲、韩国以及大中华区提供临床用生物制品，我们将整合海、内外的研发、生产资源，帮助全球客户完成项目本地化和项目出海。欢迎咨询识别二维码

临床申请临床研究

2024-02-26

·今日头条

用AI指导大肠癌治疗，大型临床研究再添新证

02月26日的《热心肠日报》，我们解读了 15 篇文献，关注：机器学习，大肠癌，预后，癌症筛查，药物研发，治疗靶点，肺腺癌，模拟禁食饮食，迈威生物，JUZTLAB草本未来，Leucine Rich Bio，北极星药业，赛诺菲。该篇日报由R·AI辅助创作生成，人工审核校对。 AI提升结肠癌化疗用药准确性 Journal of Clinical Oncology——[45.3] ① 匹兹堡大学鲁兴华和孙旻教授与团队训练了一个名为COLOXIS的AI模型，用来预测结肠癌患者对奥沙利铂的反应；② 在1065名患者中，有526名被预测为COLOXIS+（奥沙利铂响应者），而539名被预测为COLOXIS-（非响应者），COLOXIS+组的病人显著受益于奥沙利铂，而COLOXIS-组的病人则不受益；③ 建议在结直肠癌辅助治疗中仅对COLOXIS+患者使用奥沙利铂，但需要进一步验证；④ COLOXIS可以让约半数接受辅助治疗的结肠癌患者避免不必要的奥沙利铂诱发的毒副作用，并大幅度提高总体获益风险比；⑤ COLOXIS是目前唯一用逾一千病人的大规模的临床试验数据证明化疗药物疗效可以用AI的方法来推算的模型，证实了用AI指导化疗药物的可行性。【原文信息】 Machine Learning Predicts Oxaliplatin Benefit in Early Colon Cancer 2024-02-05 , doi: 10.1200/JCO.23.01080 Lancet子刊：多靶点粪便免疫化学检测改善结直肠癌筛查效果 The Lancet Oncology——[51.1] ① 这项研究显示相较于传统粪便免疫化学试验（FIT），多靶点粪便免疫化学试验（mtFIT）在检测高级别前癌病变方面具有更高的灵敏度；② 在结直肠癌筛查项目中，15283人提交了同一次排便收集的FIT和mtFIT样本，FIT的阳性率和高级别腺癌检出率分别是4.08%和1.21%，而mtFIT分别是9.11%和2.27%；③ mtFIT和FIT对结直肠癌、高危腺瘤、晚期锯齿状息肉的检出率分别0.20% vs 0.17%、1.64% vs 0.86%、0.43% vs 0.17%；④ 建模显示，基于mtFIT的筛查可将结直肠癌发病率降低21%，并将相关死亡率降低18%，与当前的荷兰结直肠癌筛查计划相比，成本可行；⑤ 在相同的阳性率下，mtFIT在诊断产出方面优于FIT；⑥ 在同样低的阳性率下，基于mtFIT的筛查将使结直肠癌发病率进一步降低5%，相关死亡率降低4%。【原文信息】 The multitarget faecal immunochemical test for improving stool-based colorectal cancer screening programmes: a Dutch population-based, paired-design, intervention study 2024-02-09 , doi: 10.1016/S1470-2045(23)00651-4 Lancet子刊：CD8+细胞和FoxP3+细胞预测结直肠癌患者预后 The Lancet Oncology——[51.1] ① 本研究通过对SCOT和QUASAR 2临床试验中II-III期结直肠癌患者肿瘤样本进行多重免疫荧光染色分析，发现综合评估上皮内CD8（CD8IE）和基质内FoxP3（FoxP3IS）细胞的密度能更精准地进行风险分层；② 在SCOT试验中，CD8IE和FoxP3IS作为连续变量显示出强烈的预后价值，而且与单独标记相比，CD8IE-FoxP3IS复合标记在作为连续变量和分为低、中、高密度组时表现更优越；③ 在QUASAR 2试验中，CD8IE-FoxP3IS的预后价值得到验证，尤其是在将其作为连续变量以及作为低密度与高密度的分类变量；④ CD8IE和FoxP3IS的联合评估有助于在结直肠癌中进行更精细的风险分层，同时也提示了将FoxP3IS细胞作为免疫治疗靶点的可能性。【原文信息】 Multiplex analysis of intratumoural immune infiltrate and prognosis in patients with stage II-III colorectal cancer from the SCOT and QUASAR 2 trials: a retrospective analysis 2024-02-01 , doi: 10.1016/S1470-2045(23)00560-0 Nature子刊：基于通路进行结直肠癌分型，揭示出缓慢增殖的生物学表型与较差的临床预后相关 Nature Genetics——[30.8] ① 本研究基于基因本体（GO分析）和生物激活状态信息对结直肠癌（CRC）进行分类，揭示了结直肠癌中与较差临床结果相关的缓慢增殖的生物表型；② 定义出三种亚型（PDS），PDS1肿瘤——经典/LGR5+干细胞丰富、高增殖并显示良好预后，PDS2肿瘤——再生/ANXA1+干细胞丰富，具有升高的基质和免疫肿瘤微环境谱系和PDS3肿瘤——CMS2中先前被忽视的缓慢增殖的肿瘤亚组，其干细胞数量减少，分化谱系增加，特别是肠细胞和肠内分泌细胞，然而在局部晚期疾病中显示出最差的预后；③ PDS3的表型特征在多个批量和单细胞数据集中均有体现，标志着一系列在临床前模型中尚未充分代表的生物状态，且不能使用现有的亚型分类器进行识别；④ 这些发现强调了使用通路级别信息进行分子分型的重要性，为结直肠癌的个性化治疗提供了新的视角。【原文信息】 Pathway level subtyping identifies a slow-cycling biological phenotype associated with poor clinical outcomes in colorectal cancer 2024-02-13 , doi: 10.1038/s41588-024-01654-5 Nature子刊：多巴胺转运体拮抗剂vanoxerine或可治疗结肠肿瘤 Nature Cancer——[22.7] ① 本研究发现多巴胺转运体（DAT）拮抗剂vanoxerine通过抑制G9a表达，有效阻断结肠癌干细胞（CSCs）的功能，为治疗结肠肿瘤提供了新策略；② 通过基于干细胞的表型药物筛选，确定vanoxerine能特异性降低G9a表达；③ 基因沉默和化学拮抗DAT通过抑制G9a表达以阻碍结肠CSC的功能；④ 拮抗DAT还通过激活内源性转座元件和I型干扰素反应，增强肿瘤淋巴细胞浸润，从而改善抗肿瘤免疫应答；⑤ 本研究揭示了DAT-G9a轴直接参与CSCs的维持，并提出了一种改善结肠肿瘤抗肿瘤免疫应答的新策略。【原文信息】 The dopamine transporter antagonist vanoxerine inhibits G9a and suppresses cancer stem cell functions in colon tumors 2024-02-13 , doi: 10.1038/s43018-024-00727-y 国内团队：脂质纳米粒子传递IFNβ编码质粒，增强结肠癌抗肿瘤免疫 ACS Nano——[17.1] ① 天津大学吕春婉团队发现通过阳离子脂质纳米粒子传递干扰素β（IFNβ）编码质粒，能有效恢复结肠癌中IFNβ的表达，增强抗肿瘤免疫；② IFN-I通过激活Cxcl9和Cxcl10的表达，增强T细胞对肿瘤的浸润；③ 在结肠肿瘤组织中，通过强制表达IFNα13和IFNβ可提高MHC I的表达并抑制肿瘤生长；④ IFNβ表达与患者HLA的表达、与患者对PD-1阻断免疫疗法反应相关的IFN-I信号激活正相关；⑤ 通过1,2-二油酰基-3-三甲基铵丙烷（DOTAP）-胆固醇包裹的IFNβ编码质粒（IFNBCOL01）治疗，可激活MHC I和颗粒酶B的表达，抑制小鼠中的结肠肿瘤生长。【原文信息】 Delivery of Interferon β-Encoding Plasmid via Lipid Nanoparticle Restores Interferon β Expression to Enhance Antitumor Immunity in Colon Cancer 2024-02-06 , doi: 10.1021/acsnano.3c10972 Nature子刊：卡博替尼与杜瓦伦单抗联用或可治疗化疗难治性结直肠癌 Nature Communications——[16.6] ① CAMILLA CRC队列的II期试验结果显示，卡博替尼与杜瓦伦单抗联合治疗化疗耐药的结直肠癌（CRC）患者表现出了抗肿瘤活性和可管理的毒性；② 29名可评估患者中，100%的患者确诊为pMMR/MSS型肿瘤，客观缓解率（ORR）为27.6%，4个月无进展生存率（PFS）为44.83%，中位总生存期（OS）为9.1个月，39%的患者发生≥3级治疗相关副作用；③ 对于RAS野生型肿瘤患者，客观缓解率提高到50%，中位PFS和OS分别为6.3个月和21.5个月；④ 治疗前进行肿瘤空间转录组分析，发现在反应者与非反应者中，VEGF和MET信号通路上调、细胞外基质活性增加以及抗肿瘤免疫反应与免疫抑制特征（如T细胞迁移障碍）共存；⑤ 此项临床试验的结果支持STELLAR-303三期试验的启动。【原文信息】 Clinical and biomarker results from a phase II trial of combined cabozantinib and durvalumab in patients with chemotherapy-refractory colorectal cancer (CRC): CAMILLA CRC cohort 2024-02-20 , doi: 10.1038/s41467-024-45960-2 浙大Cell子刊：巨噬细胞导向模块可作为大肠癌潜在治疗靶点 Cell Reports Medicine——[14.3] ① 浙江大学的赵鹏、阮健、盛剑鹏及包暄文作为共同通讯在Cell Reports Medicine发表最新研究，通过多组学分析辅以深度学习模型，在结直肠癌（CRC）中鉴定出一个以巨噬细胞为中心的模块；② 该CRC免疫模块（CCIM）包括FOLR2+巨噬细胞、耗竭的CD8+ T细胞、耐受的CD8+ T细胞、耗竭的CD4+ T细胞和调节性T细胞等；③ 通过多重免疫组化技术描绘了CCIM，并利用深度学习技术建立了空间交互图以预测化疗反应；④ CCIM-Net展示出良好的化疗反应预测性能，并且通过靶向FOLR2+巨噬细胞的治疗手段在体内打破了免疫抑制的CCIM，增强了化疗反应。【原文信息】 A multiomics analysis-assisted deep learning model identifies a macrophage-oriented module as a potential therapeutic target in colorectal cancer 2024-01-30 , doi: 10.1016/j.xcrm.2024.101399 郑心+黄适等：肠道菌群可介导肺腺癌治疗疗效 Experimental Hematology and Oncology——[10.9] ① 哈佛医学院Zheng Sun、青岛市中医特色卫生院郑心、香港大学黄适与团队发表研究，对携带PC-9肿瘤的小鼠进行不同治疗的肠道菌群变化纵向研究；② 与吉非替尼单独治疗相比，联合使用益生菌或中药的治疗方案能更有效地减小肿瘤体积、改善体重和肿瘤标志物测试结果，而使用抗生素可抑制吉非替尼的抗肿瘤效果；③ 肠道菌群的时间变化与不同治疗强相关；④ 无论何种治疗，13种介质（扩增子序列变体，ASVs）调节吉非替尼的抗肿瘤效果，即肠道菌群与吉非替尼治疗效果之间存在因果关系；⑤ 本研究揭示了肠道菌群在提高肺腺癌靶向治疗（吉非替尼治疗）效果中的重要作用，为抗肿瘤药物开发提供了新策略。【原文信息】 Revealing the role of the gut microbiota in enhancing targeted therapy efficacy for lung adenocarcinoma 2024-02-09 , doi: 10.1186/s40164-024-00478-7 模拟禁食饮食辅助治疗慢性淋巴细胞白血病 Cancer Research——[11.2] ① 周期性模拟禁食饮食（FMD）是一种在实体恶性肿瘤模型中具有强大抗肿瘤活性的实验性营养干预措，这项研究发现FMD联合蛋白酶体抑制剂和抗CD20抗体对慢性淋巴细胞白血病（CLL）具有显著的治疗效果，延缓CLL的进展并显著延长小鼠的生存期；② 2名CLL患者接受FMD，可逆地减少外周血淋巴细胞的数量；③ 小鼠CLL模型中，禁食模拟条件显示轻微的细胞毒性作用，导致胰岛素和IGF-1降低介导的凋亡激活；④ CLL细胞中，禁食促进蛋白酶体活性的增加，添加蛋白酶体抑制剂硼替佐米（BTZ）可显著增强饥饿条件的促凋亡效果；⑤ CLL模型中，FMD/BTZ/利妥昔单抗（RTX，anti-CD20）联用延缓CLL的进展，并显著延长小鼠的存活时间；⑥ 蛋白酶体抑制剂与FMD相结合促进CLL死亡，这为以饥饿逃逸途径为靶点的治疗策略提供新的思路。【原文信息】 Cyclic fasting-mimicking diet plus bortezomib and rituximab is an effective treatment for chronic lymphocytic leukemia 2024-01-19 , doi: 10.1158/0008-5472.CAN-23-0295 迈威生物Nectin-4 ADC新药获FDA快速通道认定 ① 2月25日，迈威生物宣布其自主研发的靶向Nectin-4 ADC创新药（9MW2821）获FDA快速通道认定，用于治疗晚期、复发或转移性食管鳞癌（ESCC）；② 9MW2821为靶向Nectin-4的定点偶联ADC新药，是国内企业同靶点药物中首个开展临床试验的品种；③ 截至2024年2月20日，在2期临床试验1.25mg/kg剂量组下中，9MW2821单药治疗并完成至少一次肿评的30例晚期食管癌患者的ORR和DCR分别为30%和73.3%；④ 9MW2821是全球首款针对食管癌适应症披露临床有效性数据的靶向Nectin-4治疗药物。【原文信息】迈威生物Nectin-4 ADC新药获FDA快速通道认定 2024-02-25 , 医药魔方Info 药食同源品牌JUZTLAB获若羽臣千万级融资 ① 近日，JUZTLAB草本未来获得若羽臣千万元天使轮融资；② 资金将主要用于供应链布局及团队建设；③ JUZTLAB草本未来是基于中医药食同源的高附加值健康养生品牌，以中医草本为核⼼，针对25-34岁年轻人群的生活场景提供养生产品解决方案；④ 品牌由康奈尔大学团队成立于2021年末，携手浙江大学茶叶研究所和浙江中医药大学，致力于发扬中国传统古方；⑤ JUZTLAB草本未来种子轮由小一创投独家投资，当前已建立起多元销售网络，在上线不到一年时间内，销售额突破千万。【原文信息】加码大健康赛道，“新中式”养生品牌JUZTLAB获若羽臣千万级融资 2024-02-23 , FoodTalks Leucine Rich Bio公司公布旗下个性化营养试剂盒BugSpeaks临床积极数据 ① 2月23日，Leucine Rich Bio公司宣布，其微生物组分析试剂盒BugSpeaks在临床试验中取得显著成效，能够有效改善糖尿病患者的血糖、炎症标志物和血压参数；② BugSpeaks是一种肠道微生物组分析试剂盒，可根据个体肠道微生物组提供营养建议；③ 该临床试验招募了42-65岁、患有高血糖和高胆固醇的印度成年男女；④ 受试者被随机分为两组，一组接受基于BugSpeaks的个性化饮食，另一组接受常规饮食，为期3个月；⑤ 结果显示，接受BugSpeaks个性化饮食的患者在研究的第90天显示出优异的结果，受试者的HbA1c水平从8.30降至6.67，收缩压降低了14%，炎症标志物CRP降低了20%。【原文信息】 Leucine Rich Bio announces clinical trial results of microbiome profiling kit on diabetes patients 2024-02-23 , Pharmabiz 强攻减肥药，北极星药业斥资6.7亿元扩厂 ① 2月25日，北极星药业-KY宣布，通过子公司北极星生医以6.7亿元购得约8000平方米的中国台湾竹南厂房，计划改建为GLP-1多肽药物生产基地；② 该厂房预计今年第4季投产，未来可建设三条生产线，年产5亿剂GLP-1多肽药物；③ GLP-1多肽药物主要用于调节2型糖尿病患者血糖，同时具有减重效果；④ 北极星药业锁定的市场包括东南亚、俄罗斯、中东及非洲等国家；⑤ 此外，北极星药业计划在大陆再投资近10亿元扩产，加强其在癌症代谢疗法新药和多肽药物领域的发展。【原文信息】强攻减肥药！北极星药业扩厂 2024-02-25 , GLP减重宝典赛诺菲消费者保健业务或被收购，金额高达200亿美元 ① 近日，据彭博社报道，安宏资本和黑石集团考虑以高达200亿美元收购赛诺菲消费者保健业务；② 贝恩资本、CVC Capital Partners、殷拓和KKR & Co也对收购感兴趣；③ 赛诺菲自2019年12月起，计划分拆消费者保健业务，以专注于原研药和疫苗开发；④ 2023年，赛诺菲消费者保健业务收入增长至51.8亿欧元；⑤ 大型制药公司近年来趋向于剥离消费者保健业务，聚焦创新药物开发。【原文信息】赛诺菲消费者保健业务或被收购，金额高达200亿美元 2024-02-21 , 医药魔方感谢本期日报的审核者：RZN，章台柳，圆圈儿，九卿臣，617 点击阅读过去10天的日报： 0225 | 65分综述详解：超加工食品和食品添加剂如何影响肠道健康？ 0224 | 陈思凡等Cell子刊新发现：促血栓的新型肠菌代谢物 0223 | 膳食纤维怎样影响代谢健康？18页综述一文讲透 0222 | 65分综述详解跨越菌群-肠-脑轴的"通讯之门" 0221 | Cell子刊新发现：肠菌藏身"安全屋"躲避抗生素 0220 | 秦环龙/许谦/李宁Cell子刊：深入探究菌群移植中的供-受体微生物对话 0219 | 如何用菌对抗大肠癌？《自然·综述》发出最新观点 0218 | Cell重磅：某些无糖食品为何让人肠胃不适？菌群给出答案 0209 | 《自然·综述》详解：自身免疫病中，肠道为何关键？ 0208 | 今日Nature双发，肠菌胆汁酸代谢成焦点

2024-02-15

·Science Daily

New treatment for a rare and aggressive cancer improves survival rates in breakthrough clinical trial

An innovative treatment significantly increases the survival of people with malignant mesothelioma, a rare but rapidly fatal type of cancer with few effective treatment options. An innovative treatment significantly increases the survival of people with malignant mesothelioma, a rare but rapidly fatal type of cancer with few effective treatment options, according to results from a clinical trial led by Queen Mary University of London. The phase 3 clinical trial, led by Professor Peter Szlosarek at Queen Mary and sponsored by Polaris Pharmaceuticals, has unveiled a breakthrough in the treatment of malignant pleural mesothelioma (MPM), a rare and often rapidly fatal form of cancer with limited therapeutic options. Mick's journey with mesothelioma: "I have five grandchildren and two great-grandchildren now -- I wouldn't want to miss all that." The ATOMIC-meso trial, a randomised placebo-controlled study of 249 patients with MPM, found that a treatment -- which combines a new drug, ADI-PEG20, with traditional chemotherapy -- increased the median survival of participants by 1.6 months, and quadrupled the survival at 36 months, compared to placebo-chemotherapy. The findings are significant, as MPM has one of the lowest 5-year survival rates of any solid cancer of around 5-10%. This innovative approach marks the first successful combination of chemotherapy with a drug that targets cancer's metabolism developed for this disease in 20 years. MPM is a rare, aggressive cancer that affects the lining of the lungs and is associated with exposure to asbestos. It's usually treated with potent chemotherapy drugs, but these are seldom able to halt the progression of the disease. The premise behind this new drug treatment is elegant in its simplicity -- starving the tumour by cutting off its food supply. All cells need nutrients to grow and multiply, including amino acids like arginine. ADI-PEG20 works by depleting arginine levels in the bloodstream. For tumour cells that can't manufacture their arginine due to a missing enzyme, this means their growth is thwarted. The ATOMIC-meso trial is the culmination of 20 years of research at Queen Mary's Barts Cancer Institute that began with Professor Szlosarek's discovery that malignant mesothelioma cells lack a protein called ASS1, which enables cells to manufacture their own arginine. He and his team have since dedicated their efforts to using this knowledge to create an effective treatment for patients with MPM. Professor Szlosarek said: "It's truly wonderful to see the research into the arginine starvation of cancer cells come to fruition. This discovery is something I have been driving from its earliest stages in the lab, with a new treatment, ADI-PEG20, now improving patient lives affected by mesothelioma. I thank all the patients and families, investigators and their teams, and Polaris Pharmaceuticals for their commitment to defining a new cancer therapy." Dr Tayyaba Jiwani, Science Engagement Manager at Cancer Research UK, said: "This study shows the power of discovery research which allows us to dig deep into the biology of mesothelioma to uncover vulnerabilities that we can now target with ADI-PEG20. "Cancer Research UK is delighted to have funded the early stages of this research, including a preliminary clinical trial which established the safety and effectiveness of this drug." There are ongoing studies assessing ADI-PEG20 in patients who have sarcoma or glioblastoma multiforme (a type of brain tumour) and other cancers dependent on arginine. The success of this novel chemotherapy in MPM also suggests that the drug may be of benefit in the treatment of multiple other types of cancer.  Mick's journey with mesothelioma Mick worked in a factory boiler room in the 1970s, where he was exposed to asbestos. In 2018, he visited his doctor after he began to feel unwell and had lost three stone in weight. He became anaemic and was eventually diagnosed with mesothelioma. "It was a bit of a shock: I was given four months to live," Mick explains. His doctor referred him to Professor Szlosarek, who enrolled him in the ATOMIC-meso trial. "I always believed in Peter. I said: 'I'm in it to win it -- you're not getting rid of me.' And here I am five years later." For two years, Mick visited St Bartholomew's Hospital every week, accompanied by his wife, Jackie, or one of his children or grandchildren. "I'd have two injections of the new treatment -- one in each arm. I didn't have any serious side effects," Mick explains. "I met many of the other people on the trial. Over time, some of them disappeared. But I kept going." Mick was awarded compensation from his former employer responsible for the asbestos exposure that ultimately led to his mesothelioma. Around 80% of mesothelioma cases are caused by workplace exposure. Two and a half years after Mick enrolled on the ATOMIC-meso trial, his mesothelioma returned and he received a second course of treatment, this time immunotherapy. He experienced more side effects with this therapy, including encephalitis. But his cancer remains under control, and recently he was able to celebrate his 80th birthday. Professor Szlosarek and his team plan to study why certain patients, such as Mick, benefit so greatly from ADI-PEG20, in the hope of discovering how to extend this benefit to more people. Mick says: "This trial has changed the lives of people with mesothelioma, allowing us to live longer. I have five grandchildren and two great-grandchildren now -- I wouldn't want to miss all that."

临床3期临床结果

100 项与 Polaris Pharmaceuticals, Inc. 相关的药物交易

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100 项与 Polaris Pharmaceuticals, Inc. 相关的转化医学

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