A first-in-human clinical trial to test the investigational treatment ONCT-534 in participants with metastatic castration-resistant prostate cancer. The main questions it aims to answer are:
* What are the most tolerable doses of ONCT-534? (Phase 1)
* Does ONCT-534 have anti-tumor activity at tolerable doses? (Phase 2)
This is a dose escalation and expansion study where participants will receive daily oral doses of ONCT-534.

开始日期2023-09-20

申办/合作机构

Oncternal Therapeutics, Inc.

100 项与 ONCT-534 相关的临床结果

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100 项与 ONCT-534 相关的转化医学

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100 项与 ONCT-534 相关的专利（医药）

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项与 ONCT-534 相关的新闻（医药）

2024-10-28

·药明康德

“癌症之王”患者6个月生存率超90%的KRAS靶向小分子；疾病控制率达100%的FGFR3靶向疗法…… | 一周盘点

▎药明康德内容团队编辑本期看点 1. 口服选择性FGFR3靶向疗法TYRA-300的早期临床结果亮眼，接受剂量≥90 mg/天的FGFR3突变转移性尿路上皮癌（mUC）患者的疾病控制率（DCR）为100%。 2. 泛RAS抑制剂RMC-6236在经治胰腺导管腺癌（PDAC）患者中展现出令人鼓舞的抗肿瘤活性和安全性，携带任意RAS突变的PDAC患者在6个月的总生存率为91%。 3. 治疗转移性透明细胞肾细胞癌（ccRCC）的小分子HIF-2a抑制剂casdatifan在一项1/1b期临床试验中的DCR达81%。药明康德内容团队整理 TYRA-300：公布1/2期临床试验数据 Tyra Biosciences公司公布了其潜在“first-in-class”的口服疗法TYRA-300治疗转移性尿路上皮癌（mUC）患者的1/2期研究SURF301的数据。TYRA-300是一种FGFR3选择性抑制剂，旨在避免抑制FGFR1、FGFR2和FGFR4时产生的毒性，且无论是否存在与耐药性相关的FGFR3门卫（gatekeeper）突变都能发挥作用。截至2024年8月15日的数据，接受剂量≥90 mg/天的FGFR3突变mUC患者的DCR为100%，54.5%（6/11）的患者达到部分缓解（PR），其中3例仍在治疗中，接受90 mg/天剂量的患者中有50%（5/10）达到PR。安全性方面，TYRA-300的耐受性总体良好，FGFR2和FGFR1相关毒性不常见。 RMC-6236：公布1/1b期临床试验数据 Revolution Medicines公司宣布，其在研泛RAS抑制剂RMC-6236在经治胰腺导管腺癌患者中展现出令人鼓舞的抗肿瘤活性和安全性。RMC-6236是一款口服、可靶向突变和野生型RAS在GTP结合（具活性，ON）状态下的选择性抑制剂。此次公布的1/1b期多中心、开放标签、剂量递增和剂量扩展研究RMC-6236-001旨在评估RMC-6236作为单药治疗携带RAS突变或野生型RAS晚期实体瘤患者的效果。结果显示，RMC-6236单药作为二线疗法可改善携带任意RAS突变PDAC患者的中位无进展生存期（PFS）与总生存期（OS）。在二线治疗中，携带KRAS G12X突变（KRAS G12X指的是KRAS蛋白第12位的甘氨酸因为基因突变，转换成其它氨基酸）的PDAC患者的中位PFS为8.5个月，中位OS为14.5个月。携带任意RAS突变的PDAC患者在二线治疗中的中位PFS为7.6个月，中位OS为14.5个月。携带KRAS G12X突变与携带任意RAS突变的PDAC患者在6个月时的总生存率分别为89%与91%。在二线治疗组中，携带KRAS G12X突变患者的客观缓解率（ORR）为29%，在三线及以上治疗组（3L+）中为22%，这些患者的DCR分别为91%和89%。目前该疗法的3期临床试验RASolute 302正在进行中。 Casdatifan：公布1/1b期临床试验数据 Arcus Biosciences公司公布了其在研小分子HIF-2a抑制剂casdatifan治疗转移性透明细胞肾细胞癌的1/1b期临床试验数据。HIF-2a是一种致癌转录因子，参与多个器官和肿瘤中的氧感应。由于VHL通路的基因异常，ccRCC几乎普遍与HIF-2a失调有关。通过选择性抑制HIF-2a，casdatifan可使一系列涉及肿瘤增殖和存活、耐药性和血管生成的通路失效，从而导致癌细胞死亡。截至2024年8月30日的数据，中位随访时间为11个月。在100 mg每日剂量扩展队列（n=32）中，DCR达81%，ORR为34%（2个待确认的缓解），许多患者仍在接受治疗。安全性方面，casdatifan具有可接受且可管理的安全性。 ▲Casdatifan治疗ccRCC患者的1/1b期试验数据（图片来源：参考资料[7]） NX-5948：公布1a/1b期临床试验数据 Nurix Therapeutics公司公布其在研蛋白降解剂NX-5948在治疗复发/难治性华氏巨球蛋白血症（WM）患者的1a/1b期临床试验中的最新数据。NX-5948是一种口服、可穿越血脑屏障的小分子布鲁顿氏酪氨酸激酶（BTK）蛋白降解剂。Nurix此前报告称，NX-5948对一系列对现有BTK抑制剂耐药的肿瘤细胞系表现出高效的抑制活性，这对于经过大量前期治疗的B细胞恶性肿瘤患者群体尤为重要。截至2024年10月10日的数据，在9例可评估应答的患者中，7例患者（77.8%）出现客观缓解，两例患者病情稳定（22.2%）。所有7例缓解均在8周的首次评估中观察到，其中5例患者仍在接受治疗，2例患者的治疗时间超过一年。不论患者基线MYD88和CXCR4的突变状态如何，均观察到应答。 Bel-sar（AU-011）：公布1期临床试验数据 Aura Biosciences公司宣布，其在研病毒样偶联药物（VDC）bel-sar（AU-011）在治疗非肌层浸润性膀胱癌（NMIBC）患者的1期临床试验中获得积极早期数据。Bel-sar由靶向肿瘤表面表达的糖蛋白的类病毒颗粒（VLP）与可由光激活的细胞毒性药物偶联生成。它被设计为具有双重作用机制，既能诱导肿瘤细胞坏死，又能激发强大且持久的抗肿瘤免疫反应。该试验共纳入了13名患者，主要终点是评估bel-sar单独使用（n=5）和bel-sar结合光激活（n=8）局部给药的安全性和可行性。次要终点是评估生物活性及肿瘤微环境（TME）中的免疫介导变化。13名研究参与者中，10名为低级别疾病患者，另外3名为高级别疾病患者。在接受bel-sar结合光激活治疗的患者（n=8）中，5名低级别疾病患者中有4名在组织病理学评估中显示无肿瘤细胞残留，达到了临床完全缓解（CR）。3名高级别疾病患者中有2名在膀胱镜检查中显示肿瘤明显缩小。 ONCT-534：公布1/2期临床试验数据 Oncternal Therapeutics公司公布了其在研雄激素受体（AR）抑制剂ONCT-534治疗复发性或难治性转移性去势抵抗性前列腺癌（mCRPC）患者的1/2期研究的最新数据。ONCT-534在前列腺癌模型中对未发生突变的AR以及多种形式的AR突变和异常都具有活性。ONCT-534具有治疗对AR通路抑制剂耐药（包括AR扩增、AR配体结合域突变或AR配体结合域缺失型剪接变体）的mCRPC患者的潜力。截至2024年9月30日的数据，每天两次的给药方案耐受性良好，没有出现与治疗相关的3级或更高级别的毒性反应。1名患者在接受每日两次160 mg剂量ONCT-534治疗后，前列腺特异性抗原（PSA）升高，但在随后4周以每日两次300 mg剂量ONCT-534治疗后，PSA下降了50%，同时计算机断层扫描（CT）显示与基线相比，靶病灶减少了16%。循环肿瘤细胞（CTCs）的计数和生物标志物分析显示，在另外6名患者中，ONCT-534对AR调控基因的表达和AR的核转位有令人鼓舞的效果。 Lunresertib+camonsertib：公布1期联合治疗试验数据 Repare Therapeutics公司公布了1期临床试验MYTHIC的最新数据，该试验评估了其PKMYT1抑制剂lunresertib和口服小分子ATR抑制剂camonsertib（lunre+camo）的组合疗法。在这项分析中，Repare公司对接受2期段推荐剂量（RP2D）的患者进行了约9个月的随访。结果显示，lunre+camo在保持临床疗效的同时，成功地减轻了与抗肿瘤药物机制相关的贫血。此外，在这些患者中未观察到任何级别的血小板减少或严重的中性粒细胞减少。 ATX-559：IND申请获得FDA许可 Accent Therapeutics公司宣布美国FDA已批准其潜在“first-in-class”的DHX9抑制剂ATX-559的IND申请，可在实体瘤患者中开展1期研究，重点关注BRCA1/2缺陷的乳腺癌和微卫星不稳定性高（MSI-H）和/或错配修复缺陷（dMMR）的实体瘤，预计首例患者将在2024年第四季度接受给药。 DHX9是一种DNA/RNA螺旋酶，据报道在复制、转录、翻译、RNA剪接、RNA处理以及维持基因稳定性等方面发挥着重要作用，该酶是一个有吸引力的新肿瘤学靶点。ATX-559通过抑制DHX9可利用关键的肿瘤弱点，导致癌症特异性细胞死亡。 ▲欲了解更多前沿技术在生物医药产业中的应用，请长按扫描上方二维码，即可访问“药明直播间”，观看相关话题的直播讨论与精彩回放参考资料（可上下滑动查看） [1] Revolution Medicines Presents Updated Data from RMC-6236 Monotherapy Study in Patients with Advanced Pancreatic Ductal Adenocarcinoma. Retrieved October 23, 2024 from https://www.globenewswire.com/en/news-release/2024/10/23/2967583/0/en/Revolution-Medicines-Presents-Updated-Data-from-RMC-6236-Monotherapy-Study-in-Patients-with-Advanced-Pancreatic-Ductal-Adenocarcinoma.html [2] Multiple Clinical Complete Responses Demonstrated Following Single Low Dose Administration of Bel-sar in Patients with Non-Muscle-Invasive Bladder Cancer (NMIBC) in Ongoing Phase 1 Trial. Retrieved October 18, 2024, from https://ir.aurabiosciences.com/news-releases/news-release-details/multiple-clinical-complete-responses-demonstrated-following [3] Oncternal Therapeutics Announces Updated Safety and Efficacy Data for Phase 1/2 Study of ONCT-534 for the Treatment of R/R Metastatic Castration-Resistant Prostate Cancer. Retrieved October 25, 2024, from https://www.globenewswire.com/news-release/2024/10/22/2967000/0/en/Oncternal-Therapeutics-Announces-Updated-Safety-and-Efficacy-Data-for-Phase-1-2-Study-of-ONCT-534-for-the-Treatment-of-R-R-Metastatic-Castration-Resistant-Prostate-Cancer.html [4] Nurix Therapeutics Presents Positive Results from the Ongoing Clinical Trial of Its BTK Degrader NX-5948 in Patients with Relapsed/Refractory Waldenstrom’s Macroglobulinemia. Retrieved October 21, 2024, from https://www.globenewswire.com/en/news-release/2024/10/19/2965795/0/en/Nurix-Therapeutics-Presents-Positive-Results-from-the-Ongoing-Clinical-Trial-of-Its-BTK-Degrader-NX-5948-in-Patients-with-Relapsed-Refractory-Waldenstrom-s-Macroglobulinemia.html [5] Repare Therapeutics Announces Updated Positive Safety and Tolerability Results from the Phase 1 MYTHIC Clinical Trial. Retrieved October 25, 2024, from https://ir.reparerx.com/news-releases/news-release-details/repare-therapeutics-announces-updated-positive-safety-and [6] Tyra Biosciences Reports Interim Clinical Proof-of-Concept Data for TYRA-300, an Investigational Oral FGFR3-Selective Inhibitor, in Phase 1/2 SURF301 Study in Patients with Metastatic Urothelial Cancer (mUC). Retrieved October 25, 2024, from https://www.callunapharma.com/wp-content/uploads/2024/01/Calluna_Pharma_Launch_PR.pdf [7] First Clinical Data for Arcus Biosciences’ HIF-2a Inhibitor, Casdatifan, Showed Promising Clinical Activity and Tumor Shrinkage in Patients with Metastatic Kidney Cancer. Retrieved October 25, 2024, from https://investors.arcusbio.com/investors-and-media/press-releases/press-release-details/2024/First-Clinical-Data-for-Arcus-Biosciences-HIF-2a-Inhibitor-Casdatifan-Showed-Promising-Clinical-Activity-and-Tumor-Shrinkage-in-Patients-with-Metastatic-Kidney-Cancer/default.aspx [8] Interius BioTherapeutics Doses First Patient with in vivo Chimeric Antigen Receptor (CAR) Gene Therapy for B-cell Malignancies. Retrieved October 25, 2024, from https://interiusbio.com/2024/10/interius-biotherapeutics-doses-first-patient-with-in-vivo-chimeric-antigen-receptor-car-gene-therapy-for-b-cell-malignancies/ [9] Spur Therapeutics Showcases Positive New Data from Phase 1/2 GALILEO-1 Trial of FLT201, Its Novel Gene Therapy Candidate for Gaucher Disease, in Oral Presentation at ESGCT 31st Annual Congress. Retrieved October 25, 2024, from https://www.globenewswire.com/news-release/2024/10/23/2967469/0/en/Spur-Therapeutics-Showcases-Positive-New-Data-from-Phase-1-2-GALILEO-1-Trial-of-FLT201-Its-Novel-Gene-Therapy-Candidate-for-Gaucher-Disease-in-Oral-Presentation-at-ESGCT-31st-Annua.html [10] Find Therapeutics Announces First Subject Dosed in Phase 1 Clinical Study of FTX-101. Retrieved October 25, 2024, from https://www.prnewswire.com/news-releases/find-therapeutics-announces-first-subject-dosed-in-phase-1-clinical-study-of-ftx-101-302278520.html [11] Zymeworks Announces First Patient Dosed in Phase 1 Clinical Trial Evaluating ZW171 in Advanced Mesothelin-Expressing Cancers. Retrieved October 25, 2024, from https://www.globenewswire.com/news-release/2024/10/21/2966023/0/en/Zymeworks-Announces-First-Patient-Dosed-in-Phase-1-Clinical-Trial-Evaluating-ZW171-in-Advanced-Mesothelin-Expressing-Cancers.html [12] Aligos Therapeutics Announces U.S. FDA Clearance of IND Application for ALG-000184. Retrieved October 25, 2024, from https://www.globenewswire.com/news-release/2024/10/22/2966892/0/en/Aligos-Therapeutics-Announces-U-S-FDA-Clearance-of-IND-Application-for-ALG-000184.html [13] Pierre Fabre宣布在PFL-002/VERT-002的I/II期首次给药，这是一种MET改变的NSCLC靶向治疗. Retrieved October 25, 2024, from https://www.prnasia.com/story/465694-1.shtml [14] Inozyme Pharma Announces Positive Interim Data from Phase 1 SEAPORT 1 Trial of INZ-701. Retrieved October 25, 2024, from https://www.globenewswire.com/news-release/2024/10/24/2968997/0/en/Inozyme-Pharma-Announces-Positive-Interim-Data-from-Phase-1-SEAPORT-1-Trial-of-INZ-701.html [15] Apogee Therapeutics Announces Results Up to 9 Months from Phase 1 Trial of APG777, its Novel Half-Life Extended Anti-IL-13 Antibody for the Treatment for Atopic Dermatitis and Other Inflammatory Diseases. Retrieved October 25, 2024, from https://www.globenewswire.com/news-release/2024/10/24/2968646/0/en/Apogee-Therapeutics-Announces-Results-Up-to-9-Months-from-Phase-1-Trial-of-APG777-its-Novel-Half-Life-Extended-Anti-IL-13-Antibody-for-the-Treatment-for-Atopic-Dermatitis-and-Other.html [16] BridgeBio Shares Positive Data from High Dose Cohort of Phase 1/2 CANaspire Study of Gene Therapy BBP-812 for Canavan Disease at ESGCT 2024. Retrieved October 25, 2024, from https://www.globenewswire.com/news-release/2024/10/24/2968601/0/en/BridgeBio-Shares-Positive-Data-from-High-Dose-Cohort-of-Phase-1-2-CANaspire-Study-of-Gene-Therapy-BBP-812-for-Canavan-Disease-at-ESGCT-2024.html [17] Precision BioSciences Receives First Approval of Clinical Trial Application to Initiate PBGENE-HBV First-In-Human Study for the Treatment of Chronic Hepatitis B. Retrieved October 25, 2024, from https://investor.precisionbiosciences.com/news-releases/news-release-details/precision-biosciences-receives-first-approval-clinical-trial [18] First Patients Dosed in Phase 1 Clinical Study of ImmunityBio’s CAR-NK Cell Therapy for the Treatment of Relapsed B-Cell Non-Hodgkin Lymphoma. Retrieved October 25, 2024, from https://ir.immunitybio.com/news-releases/news-release-details/first-patients-dosed-phase-1-clinical-study-immunitybios-car-nk?field_nir_news_date_value[min]= [19] Aprea Therapeutics Presents Preliminary Findings on Oral WEE1 Inhibitor APR-1051 at EORTC-NCI-AACR International Conference on Molecular Targets and Therapeutics. Retrieved October 25, 2024, from https://ir.aprea.com/news-releases/news-release-details/aprea-therapeutics-presents-preliminary-findings-oral-wee1 [20] Autolus Therapeutics Presents Clinical Data Update at the 2024 Lymphoma, Leukemia & Myeloma Congress. Retrieved October 25, 2024, from　https://www.globenewswire.com/news-release/2024/10/16/2964125/0/en/Autolus-Therapeutics-Presents-Clinical-Data-Update-at-the-2024-Lymphoma-Leukemia-Myeloma-Congress.html [21] Accent Therapeutics Announces FDA Clearance of IND Application for ATX-559, a First-In-Class Oral DHX9 Inhibitor. Retrieved October 25, 2024, from　https://www.prnewswire.com/news-releases/accent-therapeutics-announces-fda-clearance-of-ind-application-for-atx-559-a-first-in-class-oral-dhx9-inhibitor-302285845.html [22] Calluna Pharma launches and announces EUR 75 million Series A financing to develop novel therapies for inflammatory and fibrotic diseases. Retrieved October 25, 2024, from　 https://www.businesswire.com/news/home/20241023939388/en/Calluna-Pharma-Successfully-Completes-Phase-1-Clinical-Study-of-CAL101-a-First-in-Class-Therapeutic-for-Fibrotic-and-Fibro-Inflammatory-Indications/#:~:text=Calluna%20Pharma%20Successfully%20Completes%20Phase%201%20Clinical%20Study,CAL101%20is%20now%20entering%20Phase%202%20clinical%20development 免责声明：药明康德内容团队专注介绍全球生物医药健康研究进展。本文仅作信息交流之目的，文中观点不代表药明康德立场，亦不代表药明康德支持或反对文中观点。本文也不是治疗方案推荐。如需获得治疗方案指导，请前往正规医院就诊。版权说明：本文来自药明康德内容团队，欢迎个人转发至朋友圈，谢绝媒体或机构未经授权以任何形式转载至其他平台。转载授权请在「药明康德」微信公众号回复“转载”，获取转载须知。分享，点赞，在看，聚焦全球生物医药健康创新

临床结果基因疗法临床终止

2024-10-25

·GlobeNewswire-Health Care

Oncternal Therapeutics Announces Updated Safety and Efficacy Data for Phase 1/2 Study of ONCT-534 for the Treatment of R/R Metastatic Castration-Resistant Prostate Cancer

Oct. 22, 2024 -- Oncternal Therapeutics, Inc. (Nasdaq: ONCT) (the “Company”) today announced updated data from its Phase 1/2 Study of ONCT-534 for the treatment of patients with relapsed or refractory metastatic Castration-Resistant Prostate Cancer (mCRPC). Based on initial pharmacokinetic results, two additional dosing cohorts with twice daily (BID) oral dosing of ONCT-534 had been incorporated in the Phase 1/2 study ONCT-534-101 (NCT05917470). Overall, fifteen patients received ONCT-534 once daily (QD) in six dosing cohorts and six patients received ONCT-534 BID in two dosing cohorts. Based on a data cut off of September 30, 2024, the BID dosing schedule was well tolerated, with no related Grade 3 or higher toxicities. One patient, who experienced a rising PSA on ONCT-534 at 160 mg BID, had a subsequent 50% reduction in PSA after four weeks of ONCT-534 at 300 mg BID, and at the same time the CAT Scan showed a 16% reduction in target lesions compared to baseline. Enumeration and biomarker analysis of circulating tumor cells (CTCs) showed promising effects on expression of androgen receptor (AR)-regulated genes, and AR nuclear translocation in six additional patients. CTC analysis also showed that some patients who did not respond to ONCT-534 had prostate cancer that had developed neuroendocrine features, which are associated with AR independent disease. “While we still believe the decision to discontinue the ONCT-534-101 clinical trial remains the correct one in the current biotechnology environment, the updated clinical results highlight the potential of ONCT-534 in prostate cancer. We believe there is value in exploring BID dosing further, as well as studying ONCT-534 in earlier lines of therapy for advanced prostate cancer,” said James Breitmeyer, M.D., Ph.D., Oncternal’s President and CEO. “We continue to explore strategic alternatives for our product candidates, including ONCT-534, ONCT-808, zilovertamab and ONCT-216 in an ongoing effort to maximize value to our shareholders.” Oncternal Therapeutics is a clinical-stage biopharmaceutical company focused on the development of novel oncology therapies for the treatment of patients with cancers that have critical unmet medical need. Oncternal pursues drug development targeting promising, yet untapped biological pathways implicated in cancer generation or progression, focusing on hematological malignancies and prostate cancer. More information on our company and programs is available at https://oncternal.com/. ONCT-534 is an investigational dual-action androgen receptor inhibitor (DAARI) with demonstrated preclinical activity in prostate cancer models against both unmutated androgen receptor (AR), and against multiple forms of AR mutation and aberration. It is a potential treatment for patients with mCRPC with unmet medical need because of resistance to androgen receptor pathway inhibitors, including those with AR amplification, mutations in the AR ligand binding domain (LBD), or splice variants with loss of the AR LBD. It was investigated in Study ONCT-534-101 (NCT05917470) for the treatment of patients with mCRPC who are resistant to current AR pathway inhibitors. ONCT-808 is an investigational autologous chimeric antigen receptor T (CAR T) cell therapy that targets Receptor Tyrosine Kinase-Like Orphan Receptor 1 (ROR1) using the binding domain from zilovertamab. ONCT-808 has demonstrated activity in preclinical models against multiple hematological malignancies and solid tumors and has been shown to be specific for cancer cells expressing ROR1. Oncternal has developed a robust and reproducible manufacturing process that has the potential to reduce the time patients must wait for their individual CAR T therapy to be produced compared with currently approved CAR T products. It was investigated in Study ONCT-808-101 (NCT05588440) with relapsed or refractory aggressive B-cell lymphoma, including patients who have failed previous CD19 CAR T treatment. Zilovertamab (previously called cirmtuzumab and UC-961) is an investigational monoclonal antibody designed to inhibit the function of Receptor Tyrosine Kinase-Like Orphan Receptor 1 (ROR1). Zilovertamab has been evaluated in Phase 1/2 Study CIRM-0001 (NCT03088878) in combination with ibrutinib for the treatment of patients with mantle cell lymphoma (MCL), chronic lymphocytic leukemia (CLL) and marginal zone lymphoma (MZL), which resulted in 100% progression free survival (PFS) at 48 months in CLL patients whose tumors harbored del(17p)/p53 mutation, a population underserved by current treatment options. The U.S. Food and Drug Administration (FDA) has granted Orphan Drug Designation to zilovertamab for the treatment of CLL and MCL. The results of an investigator-sponsored, Phase 1b clinical trial of zilovertamab in combination with paclitaxel for the treatment of women with HER2-negative metastatic or locally advanced, unresectable breast cancer were recently published (Shatsky 2023). Zilovertamab was evaluated in an investigator-initiated Phase 1b study of zilovertamab in combination with docetaxel in patients with metastatic castration-resistant prostate cancer (NCT05156905), and an investigator-initiated Phase 2 clinical trial of zilovertamab in combination with venetoclax, a Bcl-2 inhibitor, in patients with relapsed/refractory (R/R) CLL (NCT04501939). ONCT-216 (previously called TK216) is an investigational targeted small-molecule inhibitor of the E26 transformation-specific (ETS) family of oncoproteins including fusion proteins. Tumorigenic fusion proteins involving the EWS protein and an ETS protein can be found in most cases of Ewing sarcoma. ETS-related translocations or overexpression are also found in many other tumors such as acute myeloid leukemia (AML), diffuse large B cell lymphoma (DLBCL), and prostate cancer. In preclinical models, ONCT-216 was observed to bind to EWS-FLI1, blocking the interaction between this fusion protein and other transcriptome proteins such as RNA helicase A, leading to tumor cell apoptosis and inhibiting tumor growth in animal models. The U.S. Food and Drug Administration (FDA) has granted Rare Pediatric Disease Designation, Orphan Drug Designation and Fast Track Status to ONCT-216 for the treatment of Ewing sarcoma. The results of a Phase 1/ 2 clinical trial of ONCT-216 in patients with Ewing sarcoma (NCT02657005) were recently published (Myers 2024). The content above comes from the network. if any infringement, please contact us to modify.

临床结果孤儿药快速通道免疫疗法

2024-09-14

·药渡

2个核心管线同时暴雷，首席医疗官出走

一个候选药物失败，还能说是小问题。两个核心产品同时出问题，这对于一家Biotech来说，无疑是致命的。 Oncternal Therapeutics的两款临床候选药物ONCT-534（双效雄激素受体抑制剂）和ONCT-808（自体ROR1 CAR-T），分别因疗效和毒性问题停止了临床试验。同日（2024年9月12日），该公司宣布将考虑战略代替方案，裁员37%。以及首席医疗官也出走了。核心管线同时暴雷 Oncternal公司有4条管线，分别是ONCT-534（双效雄激素受体抑制剂）、ONCT-808（自体ROR1 CAR-T）、Zilovertamab（ROR1单抗，被取消了优先级）、以及一款被取消优先级的早期管线ONCT-216。 Oncternal管线（图片来源：参考资料2）其中，ONCT-534和ONCT-808同时爆雷，停止临床研究。 ONCT-534是一种新型、口服的双效雄激素受体抑制剂，被开发用于治疗转移性去势抵抗性前列腺癌（mCRPC）。 ONCT-534的1期试验中期结果显示：8个给药队列中的20名患者未能显示出疾病改善，包括前列腺特异性抗原（PSA）水平。ONCT-534通常耐受性良好，在最高剂量队列中，3名患者中有2名观察到剂量限制性毒性。 ONCT-808是一款自体的ROR1 CAR-T细胞治疗，也是全球进度最快的ROR1 CAR-T项目之一。被开发用于治疗复发/难治性（R/R）侵袭性B细胞恶性肿瘤。 ONCT-808的更新数据显示：在每个剂量中都表现出具有抗肿瘤活性，包括持续8个月的完全代谢反应和CAR-T细胞的长期持久性。但是CAR-T治疗预期会出现不良事件，以及在最高剂量队列中经历了因休克并发症导致的死亡事件。 Oncternal公司表示，根据现有的临床数据和持续开发的资金要求，决定终止研究。放弃治疗在同一份新闻稿中，Oncternal公司表示将专注于探索战略代替方案，以实现股东价值最大化的目标，其中可能包括资产出售、许可，或公司并购、反向并购以及其他业务合并。在这项战略探索进行期间，Oncternal将停止所有产品的研发活动，同时采取其他措施来降低运营成本，包括裁员。但实际上，两款临床管线的暴雷原本还不完全致命。因为Oncternal公司还拥有一款后期阶段的管线Zilovertamab。Zilovertamab是全球首个进入3期临床的ROR1单抗。 Zilovertamab的疗效数据看起来还不错。在与ibrutinib联用的1/2期临床中，表达P53突变/del(17p)的CLL患者获得100%的无进展生存期（PFS），持续48个月。但是在2023年4月，Oncternal公司取消了Zilovertamab的优先级，关闭了其针对MCL的3期研究和1/2期研究。小编未能找到Oncternal降低Zilovertamab优先级的披露原因，部分原因推测为没有足够的资金。放弃了在全球范围来说都是最领先的管线，后提上的两个管线又一起暴雷，再加上公司紧张的现金流...... Oncternal公司决定放弃治疗。小结从Oncternal公司目前的情况来看，可能资产并不怎么值钱了。两款核心管线都出事，不是没效，就是毒性大，这很难不嘀咕Oncternal的研发能力和技术水平。 Oncternal公司的倒下，同时也为ROR1靶向治疗的开发增加了一丝阴霾....... 参考资料： 1.https://investor.oncternal.com/news-releases/news-release-details/oncternal-therapeutics-announces-termination-its-clinical 2.https://www.oncternal.com/pipeline/overview/ 3.https://investor.oncternal.com/static-files/fb10e230-e261-45c2-be43-90a980dd8d81 4.https://www.biospace.com/job-trends/oncternal-to-lay-off-37-of-employees-including-cmo 药渡媒体商务合作媒体公关 | 新闻&会议发稿张经理：18600036371（微信同号）点击下方“药渡“，关注更多精彩内容免责声明 “药渡”公众号所转载该篇文章来源于其他公众号平台，主要目的在于分享行业相关知识，传递当前最新资讯。图片、文章版权均属于原作者所有，如有侵权，请及时告知，我们会在24小时内删除相关信息。微信公众号的推送规则又双叒叕改啦，如果您不点个“在看”或者没设为"星标"，我们可能就消散在茫茫文海之中~点这里，千万不要错过药渡的最新消息哦！👇👇👇

免疫疗法细胞疗法并购临床3期临床结果

100 项与 ONCT-534 相关的药物交易

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研发状态

10 条进展最快的记录,

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适应症	最高研发状态	国家/地区	公司	日期
转移性去势抵抗性前列腺癌	临床2期	美国	Oncternal Therapeutics, Inc.	2023-09-20
转移性去势抵抗性前列腺癌	临床2期	英国	Oncternal Therapeutics, Inc.	2023-09-20
乳腺癌	临床前	美国	University of Tennessee	2021-04-10
乳腺癌	临床前	美国	Oncternal Therapeutics, Inc.	2021-04-10

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临床结果

适应症

分期

评价

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研究	分期	人群特征	评价人数	分组	结果	评价	发布日期


NCT05917470 (ONCT-534-101, CTgov)	临床1/2期	转移性去势抵抗性前列腺癌	21	ONCT-534 (Dose Level 1: 40mg QD)	齋夢獵窪廠鬱願範製蓋 = 憲鹽餘繭願襯艱衊觸窪糧蓋範範膚衊積醖夢顧 (獵餘構選鹽壓蓋鏇衊餘, 衊窪夢憲鬱齋夢鑰齋衊 ~ 築範製壓膚蓋積鏇遞鹹) 更多	-	2024-12-11
				ONCT-534 (Dose Level 2: 80mg QD)	齋夢獵窪廠鬱願範製蓋 = 簾簾廠鹹積願鹹鬱簾繭糧蓋範範膚衊積醖夢顧 (獵餘構選鹽壓蓋鏇衊餘, 築製蓋繭遞膚糧壓選憲 ~ 夢遞願襯積範鹽獵艱選) 更多
NCT05917470 (ONCT-534-101, Company_Website) 人工标引	临床1/2期	转移性去势抵抗性前列腺癌	21	ONCT-534 (once daily (QD) in six dosing cohorts)	範淵壓糧繭壓遞齋憲艱(獵獵糧製遞艱齋鬱範鑰) = None 淵憲選鏇窪築淵淵構膚 (築鏇淵鹽鹽鬱製簾鹹顧 ) 更多	积极	2024-10-22
				ONCT-534 (BID in two dosing cohorts)