Safety and Efficacy of Anti-CD47, ALX148 in Combination With Liposomal Doxorubicin and Pembrolizumab in Patients With Recurrent Platinum-resistant Ovarian Cancer: Phase II Study

Immunotherapy with immune checkpoint inhibitors, including pembrolizumab, have emerged as a promising option in several solid cancers with durable effect and low toxicity profile. However, the benefit is limited to smaller subset of solid tumors. This trial involves the enhancement of current immune checkpoint-based immunotherapy with ALX148, an agent that inhibits CD47 (a trans-membrane protein that is highly expressed on the surface of many solid tumors as compared to normal cells).

开始日期2023-03-30

申办/合作机构

University of Pittsburgh

[+2]

NCT05868226 / Recruiting临床1期

PRE-Investigation of Serial Studies to Predict Your Therapeutic Response With Imaging And moLecular Analysis: A Phase I/Ib Platform Trial

I-SPY Phase I/Ib (I-SPY-P1) is an open-label, multisite platform study designed to evaluate single agents or combinations in a metastatic treatment setting that may be relevant for breast cancer patients with the overall goal of moving promising drug regimens into the I-SPY 2 SMART Design Trial (NCT01042379) and/or other oncology-based trials in a timely manner.

开始日期2022-12-22

申办/合作机构

Quantumleap Healthcare Collaborative

NCT05524545 / Recruiting临床1期

A Phase 1, Open-label, Multicenter, Safety, Pharmacokinetic, Pharmacodynamic Study of ALX148 in Combination With Enfortumab Vedotin and/or Other Anticancer Therapies in Subjects With Urothelial Carcinoma (ASPEN-07)

AT148007 is a Phase 1, open-label, multicenter, safety, pharmacokinetic, pharmacodynamic study of ALX148 in combination with enfortumab vedotin and/or other anticancer therapies in subjects with urothelial carcinoma.

开始日期2022-11-02

申办/合作机构

ALX Oncology, Inc.

100 项与 Evorpacept 相关的临床结果

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100 项与 Evorpacept 相关的转化医学

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100 项与 Evorpacept 相关的专利（医药）

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项与 Evorpacept 相关的文献（医药）

2024-07-01·CURRENT OPINION IN ONCOLOGY

State of the art and upcoming trends in HER2-directed therapies in gastrointestinal malignancies

Review

作者: Lee, Jaeyop ; Ku, Geoffrey

Purpose of review:

This review critically evaluates the evolution and current status of human epidermal growth factor receptor 2 (HER2)-directed therapies in upper gastrointestinal (GI) malignancies, a timely and relevant inquiry given the dynamic shifts in therapeutic strategies over the past decade. Initial enthusiasm following the Trastuzumab for Gastric Cancer (ToGA) study's demonstration of trastuzumab's efficacy, however, encountered hurdles due to subsequent trials showing limited progress, underscoring the necessity for a reevaluation of therapeutic approaches and the exploration of novel agents.

Recent findings:

The review highlights significant breakthroughs in the form of immune checkpoint inhibitors and innovative therapeutic technologies, which have redefined treatment paradigms and shown promising efficacy in HER2-positive cases. Emerging treatments such as trastuzumab deruxtecan (T-DXd), zanidatamab and evorpacept further illustrate the ongoing efforts to leverage unique mechanisms of action for improved HER2-positive antitumor activity.

Summary:

The advancements in HER2-directed therapies underscore a pivotal era in the management of upper GI malignancies. These developments not only reflect the profound impact of integrating novel therapeutic combinations but also highlight the critical role of ongoing research in overcoming resistance mechanisms and tailoring treatment to individual disease profiles.

2024-01-01·TRANSFUSION MEDICINE AND HEMOTHERAPY

Evorpacept-Induced Interference and Application of a Novel Mitigation Agent, Evo-NR, in Pretransfusion Testing

Article

作者: Kim, Tae Yeul ; Yoon, Eungjun ; Kim, Hyungsuk ; Cho, Duck

Introduction: Evorpacept is a CD47-blocking agent currently being developed for the treatment of various cancers. Interference by evorpacept in pretransfusion compatibility testing has been reported at limited plasma concentrations. Although various mitigation strategies have been proposed, none are practical. This in vitro study assessed evorpacept-induced interference at extended concentrations and investigated the capability of a novel mitigation agent, Evo-NR. Methods: Antibody screening tests were performed on evorpacept-spiked plasma with (anti-E and anti-Jk^a) or without alloantibodies at evorpacept concentrations up to 2,000 μg/mL using manual gel cards and automated analyzers. Evorpacept-coated red blood cells (RBCs) (rr [ce/ce], Fy[a+b−], S−s+) were tested by direct antiglobulin testing (DAT) and antigen typing using anti-Fy^b and anti-S reagents at indirect antiglobulin testing (IAT) phase. Evo-NR was used to resolve the interference in plasma and RBC samples. Flow cytometry was used to assess the mitigation effects. Results: Evorpacept-spiked plasma showed panreactive interference in antibody screening tests using manual gel cards (2+ to 3+) and automated analyzers (4+). A carryover effect was also observed in the automated analyzers. The use of a 3- to 6-fold molar excess of Evo-NR effectively resolved the interference in the plasma and enabled accurate alloantibody identification. Although the reduction in evorpacept binding to RBCs was identified via flow cytometry, Evo-NR was incapable of resolving the serologic interference observed in DAT and antigen typing at IAT phase. Discussion: Evorpacept showed constant panreactivity and a carryover effect at high concentrations. Evo-NR successfully resolved the interference in the plasma samples and could be considered a practical and efficient mitigation solution. Implementation of Evo-NR has the potential to support RBC transfusion for patients undergoing evorpacept treatment.

2021-12-01·The Lancet. Oncology1区 · 医学

Evorpacept alone and in combination with pembrolizumab or trastuzumab in patients with advanced solid tumours (ASPEN-01): a first-in-human, open-label, multicentre, phase 1 dose-escalation and dose-expansion study

1区 · 医学

Article

作者: Patricia LoRusso ; Hyun Cheol Chung ; Keun-Wook Lee ; Hong I Wan ; Nehal J Lakhani ; Wells A Messersmith ; Pierre Squifflet ; Justin F Gainor ; Yung-Jue Bang ; Jaume Pons ; Frank Stephen Hodi ; Won Seog Kim ; Laura Q M Chow ; Jeeyun Lee ; Philip Fanning ; Sophia S Randolph ; Feng Jin ; Rafael Santana-Davila ; Tracy C Kuo

BACKGROUND:

Both innate and adaptive immune responses are important components of anticancer immunity. The CD47-SIRPα interaction could represent an important pathway used by tumour cells to evade immune surveillance. We aimed to evaluate the safety, pharmacokinetics, pharmacodynamics, and anticancer activity of evorpacept (also known as ALX148), a high-affinity CD47-blocking protein with an inactive IgG Fc region in patients with solid tumours.

METHODS:

We did a first-in-human, open-label, multicentre, phase 1 dose-escalation and dose-expansion study at nine hospitals and one clinic in the USA and Korea. Eligible patients for the dose-escalation and safety lead-in phases were aged 18 years or older with histological or cytological diagnosis of advanced or metastatic solid tumours with no available standard therapy, measurable or unmeasurable disease according to the Response Evaluation Criteria in Solid Tumors version 1.1, and an Eastern Cooperative Oncology Group performance status score of 0 or 1. In the dose-escalation phase, which used a 3 + 3 design, patients received intravenous evorpacept at either 0·3, 1, 3, or 10 mg/kg once per week in 21-day cycles, or 30 mg/kg once every other week in 28-day cycles. In the safety lead-in phase, patients were given the maximum tolerable dose of evorpacept from the dose-escalation phase plus either intravenous pembrolizumab (200 mg administered once every 3 weeks) or intravenous trastuzumab (8 mg/kg loading dose followed by 6 mg/kg once every 3 weeks). In the dose-expansion phase, additional patients aged 18 years or older with second-line or later-line advanced malignancies were enrolled into three parallel cohorts: those with head and neck squamous cell carcinoma (HNSCC) and those with non-small-cell lung cancer (NSCLC) were given the maximum tolerated dose of evorpacept plus intravenous pembrolizumab (200 mg administered once every 3 weeks), and patients with HER2-positive gastric or gastroesophageal junction cancer were given the maximum tolerated dose of evorpacept plus intravenous trastuzumab (8 mg/kg loading dose followed by 6 mg/kg once every 3 weeks) until disease progression, voluntary withdrawal from the study, or unacceptable toxicity. The primary endpoint was the maximum tolerated dose of evorpacept administered as a single agent and in combination with pembrolizumab or trastuzumab, measured by the occurrence of dose-limiting toxicities during the first cycle, and was assessed in all patients who had received at least one dose of evorpacept. Secondary outcomes included the safety, tolerability, and antitumour activity of evorpacept, alone or in combination with pembrolizumab or trastuzumab. The primary outcome, safety, and tolerability were assessed in all patients who had received at least one dose of evorpacept, and antitumour activity was assessed in those who recieved at least one dose of study treatment and underwent at least one post-baseline tumor assessment. This trial is registered with ClinicalTrials.gov, NCT03013218.

FINDINGS:

Between March 6, 2017, and Feb 21, 2019, 110 patients received single-agent evorpacept (n=28), evorpacept plus pembrolizumab (n=52), or evorpacept plus trastuzumab (n=30), and were included in the safety analysis. Median follow-up was 29·1 months (95% CI not calculable [NC]-NC) in the single-agent cohort, 27·0 months (25·1-28·8) in the evorpacept plus pembrolizumab cohort, and 32·7 months (27·0-32·7) in the evorpacept plus trastuzumab cohort. Two (7%) dose-limiting toxicities in the first cycle were reported in patients who received single-agent evorpacept; neutropenia with an associated infection in one patient with gastroesophageal junction cancer who received 3 mg/kg once per week, and thrombocytopenia with associated bleeding in one patient with pancreatic cancer who received 30 mg/kg once every other week. No maximum tolerated dose was reached; the maximum administered doses were 10 mg/kg once per week or 30 mg/kg once every other week. The 10 mg/kg once per week dose was used in the expansion cohorts in combination with pembrolizumab or trastuzumab. The most common grade 3 or worse treatment-related adverse events were thrombocytopenia with single-agent evorpacept (two [7%] patients) and evorpacept plus pembrolizumab (two [4%]), and thrombocytopenia (two [7%]) and neutropenia (two [7%]) with evorpacept plus trastuzumab. In patients who received single-agent evorpacept, four treatment-related serious adverse events were reported. Five serious treatment-related adverse events related to evorpacept plus pembrolizumab were reported, and one serious adverse event related to evorpacept plus trastuzumab was reported. In response-evaluable patients in the dose-escalation phase (n=15) receiving single-agent evorpacept once per week, four (27%) had a best overall response of stable disease (two received 0·3 mg/kg, one received 3 mg/kg, and one received 10 mg/kg); in the 11 patients who received single-agent evorpacept at the highest dose of 30 mg/kg once every other week, two (18%) had stable disease. In the dose-expansion cohort, overall responses were recorded in four (20·0%; 95% CI 5·7-43·7) of 20 patients with HNSCC who received evorpacept plus pembrolizumab, in one (5·0%; 0·1-24·9) of 20 patients with NSCLC who received evorpacept plus pembrolizumab, and in four (21·1%; 6·1-45·6) of 19 patients with gastric or gastroesophageal junction cancer who received evorpacept plus trastuzumab.

INTERPRETATION:

The safety findings support the use of evorpacept in combination with pembrolizumab or trastuzumab for patients with advanced solid tumours. Preliminary antitumour activity results support future investigation of evorpacept combined with pembrolizumab or trastuzumab in patients with HNSCC, gastric or gastroesophageal junction cancer, and NSCLC.

FUNDING:

ALX Oncology.

133

项与 Evorpacept 相关的新闻（医药）

2024-12-10

·GlobeNewswire-Health Care

ALX Oncology Announces New Data Demonstrating Evorpacept in Combination with Zanidatamab Generates Promising Antitumor Activity in Advanced Breast Cancer

Data from Phase 1b/2 clinical trial to be presented at 2024 San Antonio Breast Cancer Symposium (SABCS) show encouraging clinical activity in patients with heavily pretreated HER2-positive breast cancer who had received multiple HER2-targeted agents, including fam-trastuzumab deruxtecan-nxki (ENHERTU®)Combination therapy was well tolerated with a manageable safety profile consistent with prior experience with each investigational agentData contribute to growing evidence supporting evorpacept activity in combination with anti-HER2-targeted agents among patients with HER2-positive cancers SOUTH SAN FRANCISCO, Calif., Dec. 10, 2024 (GLOBE NEWSWIRE) -- ALX Oncology Holdings Inc. (“ALX Oncology” or “the Company”) (Nasdaq: ALXO), a clinical-stage biotechnology company advancing therapies that boost the immune system to treat cancer and extend patients’ lives, announced results from a Phase 1b/2 clinical trial demonstrating the company’s investigational CD47-blocker evorpacept in combination with Jazz Pharmaceuticals’ zanidatamab generates promising anti-tumor activity in patients with both HER2-positive and HER2-low advanced breast cancer. The findings, which are the first from a clinical trial evaluating the safety and efficacy of evorpacept and zanidatamab in heavily pretreated patients with metastatic breast cancer (mBC), will be presented on Thursday, December 12 in a poster spotlight presentation (#PS8-09) at the 2024 San Antonio Breast Cancer Symposium (SABCS). “These data suggest that HER2-positive patients whose cancer has been heavily pretreated may benefit from CD47 inhibition via evorpacept’s unique mechanism when combined with a HER2-targeted agent,” said Alberto J. Montero, M.D., MBA, Clinical Director, Breast Cancer Medical Oncology Program, Case Western Reserve University, and the study’s principal investigator. “New therapeutic options with better safety profiles are desperately needed for these patients, and this is particularly true once disease progresses following advanced, standard-of-care therapies such as ENHERTU.” The Phase 1b/2 open-label, multi-center clinical trial (NCT05027139) evaluated the potential of evorpacept, a highly differentiated, investigational CD47 blocker, in combination with zanidatamab, a dual HER2-targeted bispecific antibody, as a novel treatment for patients with previously treated inoperable, locally advanced, or metastatic HER2-expressing breast cancer and other cancers. Part one of the trial evaluated the safety and recommended doses for the combination; part two assessed the anti-tumor activity of the resulting combination. The SABCS poster presentation will include efficacy findings from all three of the part-two trial cohorts: Cohort 1 (n=21) consisted of patients with HER2-positive breast cancer who had received a median of six prior systemic therapies in the metastatic setting. Notably, all patients in Cohort 1 had received prior fam-trastuzumab deruxtecan-nxki (ENHERTU®). Patients were enrolled based on local assessment of tumor samples or central assessment. Of the 21 patients enrolled in Cohort 1, nine were found to be HER2-positive based on central assessment. Cohort 2 (n=15) consisted of patients with HER2-low breast cancer who had received a median of five prior systemic therapies. Cohort 3 (n=8) consisted of patients with other HER2-expressing cancers. Key trial results to be shared at SABCS 2024 include: HER2-positive by central assessment mBC: Patients in Cohort 1 who were HER2-positive by central assessment (n=9) showed the greatest anti-tumor activity with a confirmed objective response rate (cORR) of 55.6% and a median progression free survival (mPFS) of 7.4 months.HER2-positive mBC: Overall, patients in Cohort 1 (n=21) had a confirmed cORR and mPFS of 33.3% and 3.6 months, respectively.HER2-low mBC: Responses were also observed in Cohort 2 (cORR: 20.0%; mPFS: 1.9 months).As of the August 2024 data cutoff, median follow-up was 9.6 months, with six patients still on treatment. The median duration of response was not reached for Cohort 1 patients (range: 3.6-25.9 months) and was 5.5 months for Cohort 2 patients (range: 3.6-11.0 months), with responses ongoing, including the longest observed response, in each cohort. Most treatment-related adverse events were grade 1 or 2. The most frequent adverse events due to any cause were fatigue, nausea, diarrhea, and infusion-related reactions. There were no treatment-related deaths in the study and no non-infectious pulmonary toxicities. These safety findings are consistent with those observed in the >700 patients treated with evorpacept to date. “This study adds to the growing body of evidence suggesting that evorpacept can treat HER2-positive cancers after patients progress on multiple conventional HER2-directed therapies, given that the encouraging response rate of 55 percent in this population would not be expected,” said Jason Lettmann, Chief Executive Officer at ALX Oncology. “The data that will be presented this week also further validate our biomarker strategy, showing that confirmed HER2-expression drove the largest benefit for patients. Collectively, these findings provide us with the proof of concept necessary to accelerate our clinical plans to advance evorpacept in HER2-positive breast cancer.” A copy of the poster presentation will be available on the Publications section of ALX Oncology’s website at the start of the presentation at SABCS on December 12, 2024. About ALX Oncology ALX Oncology (Nasdaq: ALXO) is a clinical-stage biotechnology company advancing therapies that boost the immune system to treat cancer and extend patients’ lives. ALX Oncology’s lead therapeutic candidate, evorpacept, has demonstrated potential to serve as a cornerstone therapy upon which the future of immuno-oncology can be built. Evorpacept is currently being evaluated across multiple ongoing clinical trials in a wide range of cancer indications. More information is available at www.alxoncology.com and on LinkedIn @ALX Oncology. Cautionary note regarding forward-looking statements This press release contains forward-looking statements that involve substantial risks and uncertainties. Forward-looking statements include statements regarding future results of operations and financial position, business strategy, product candidates, planned preclinical studies and clinical trials, results of clinical trials, research and development costs, regulatory approvals, timing and likelihood of success, plans and objects of management for future operations, as well as statements regarding industry trends. Such forward-looking statements are based on ALX Oncology’s beliefs and assumptions and on information currently available to it on the date of this press release. Forward-looking statements may involve known and unknown risks, uncertainties and other factors that may cause ALX Oncology’s actual results, performance or achievements to be materially different from those expressed or implied by the forward-looking statements. These and other risks are described more fully in ALX Oncology’s filings with the Securities and Exchange Commission (SEC), including ALX Oncology’s Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other documents ALX Oncology files with the SEC from time to time. Except to the extent required by law, ALX Oncology undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

临床结果ASCO会议免疫疗法临床研究

2024-11-20

·CPHI制药在线

礼新医药好事连连，融资、对外授权不停

关注并星标CPHI制药在线近期，礼新医药可谓好事连连：10月18日，礼新医药宣布完成3亿元C1轮融资，由中国生物制药领投，浦东创投、张江浩珩共同参与；11月14日，礼新医药牵手默沙东，授权后者在的全球开发、生产和商业化其PD-1/VEGF双特异性抗体LM-299的权利，交易总金额高达32.88亿美元；11月20日，礼新医药与中国生物制药签署股权投资及战略合作协议。中国生物制药以自筹资金入股礼新医药，并就LM-108及未来潜在的多个创新双特异性抗体或抗体偶联药物（ADC）在中国大陆地区达成战略合作。在此之前，礼新医药曾与Turning Point（后被百时美施贵宝收购）和阿斯利康达成对外授权许可协议，许可药物涉及两款抗体偶联药物（ADC） LM-302（作用靶点为Claudin 18.2）和LM-305（作用靶点为GPRC5D），交易金额分别为11亿美元和6亿美元。医药寒冬之下，礼新医药有何魅力？礼新医药是一家专注于研发“全球首创”和“同类最佳”潜力生物创新药的生物制药公司，自2019年成立已来，已完成多轮融资：2019年完成天使轮融资，2020年完成Pre-A轮融资，2021年完成A+轮融资，2022年完成B轮融资，2024年完成C1轮融资。而且，礼新医药C2轮融资也已启动。礼新医药之所以获得资本青睐，与其技术平台和差异化研发管线有很大关系。据公开资料，礼新医药主要拥有三大自主研发平台，即LX-TAb™、LX-ADC™和LX-TDuo™，其中LX-TAb™是多次跨膜抗体开发平台，其全面涵盖抗体发现、筛选、优化、人源化等环节，能够大幅提升筛选效率，压缩筛选时间，提高成药性。LX-ADC是下一代ADC技术平台，拥有新颖的靶点选择策略，高度差异化的抗体，以及精确设计的连接子+毒素载荷组合。LX-TDuo™是免疫桥接多特异性抗体平台，其开发的抗体分子结构独特，可以实现肿瘤抗原依赖的免疫细胞激活，从而避免非特异性活化外周免疫系统带来的毒性风险。而且，LX-TDuo™平台拥有高度灵活性，可以选择针对不同肿瘤抗原及免疫细胞开发比传统组合疗法更为高效的癌症治疗药物。而且，礼新医药已建立起丰富的研发管线，其中6款进入临床试验，7款处于临床前阶段。从药物类型来看，礼新医药专注于单抗、双抗、ADC生物药的研发，尤其是ADC。从作用靶点来看，礼新医药更专注于新靶点药物的开发，如SIRPα、CCR8、GPRC5D，这些靶点大多没有新药获批上市。具体来看，LM-302进展最快，已进入3期阶段。该药是LM-302是一款Claudin 18.2靶向ADC，曾被FDA授予治疗胰腺癌、胃癌及胃食管交界部癌和胆管癌的三项孤儿药资格。临床前研究显示：LM-302具有良好的安全性及体内外活性，尤其是对Claudin 18.2 低表达肿瘤模型，显示出超过对照佐贝妥昔单抗(Claudin 18.2靶向单抗，已被批准用于局部晚期不可切除或转移性、HER2阴性、CLDN18.2阳性胃癌或胃食管结合部癌的一线治疗)的良好药效。 2023年10月，LM-302被CDE纳入突破性治疗药物品种，用于治疗既往接受过二线及以上系统治疗的Claudin 18.2阳性的局部晚期或转移性胃或胃食管交界处腺癌（GEJ）。2024 ASCO年会上公布的LM-302治疗Claudin 18.2阳性胃或胃食管交界处腺癌的剂量递增和扩展1/2期临床研究结果显示：LM-302耐受性良好，安全性可控，在Claudin 18.2阳性胃癌及胃癌/GEJ 癌患者中显示出良好的抗肿瘤活性。具体数据为：截至2024年3月1日，共纳入154例晚期实体瘤患者，其中89例为胃/胃食管交界处癌患者。数据截止至2023年11月15日，针对39例接受三线及以上治疗、Claudin 18.2阳性胃癌/胃食管交界处腺癌患者的评估结果显示：LM-302的ORR达30.6%，DCR达到75%，mPFS为7.16个月，mOS未到达，6个月时的OS率为 95.0%。 Claudin 18.2被认为是胃癌治疗的潜力靶点，目前仅安斯泰来的佐贝妥昔单抗获批上市。与佐贝妥昔单抗不同，LM-302是一款ADC，仅从药物类型来看，ADC比单抗在治疗实体瘤上更具优势。在Claudin 18.2靶点领域，LM-302处于第二梯队，不过单抗类的Osemitamab、FG-M108、ASKB-589，ADC类的CMG-901、SHR-A-1904、IBI343均处于3期临床。整体来看，LM-302后续竞争还挺激烈。 LM-108处于2/3期临床。该药是一款CCR8靶向单抗，可选择性地针对肿瘤浸润性Tregs。2024 ASCO年会上公布的3项1/2期临床研究的汇总分析结果显示：LM-108与抗PD-1抗体联合疗法在对PD-1治疗有抗性的胃癌患者中显示出良好的抗肿瘤活性，且耐受性良好。 CC族趋化因子受体8（CCR8）是一种在肿瘤浸润的调节性T细胞（Treg）上特异性高表达的趋化因子受体，但在外周血和正常组织中基本不表达，被认为是一个极具潜力的肿瘤免疫和自身免疫疾病的新兴靶点。目前，目前CCR8靶点还没有药物获批，但超10款药物已进入临床试验阶段，其中LM-108进展较快，处于2期临床，BMS-986340、S-531011、SRF114等处于1/2期临床。 LM-101、LM-305等处于1期临床。其中LM-101是一款抗SIRPα单抗，目前处于1期临床。SIRPα靶点目前未有药物获批上市，但宜明昂科的替达派西普和ALX Oncology的evorpacept进展较快，这两款药物均属于SIRPα-Fc融合蛋白，其中替达派西普联合替雷利珠单抗对比研究者选择的化疗方案治疗抗PD-(L)1单抗难治性经典型霍奇金淋巴瘤（cHL）的3期临床试验于2024年6月启动。evorpacept联合曲妥珠单抗、雷莫西尤单抗和紫杉醇对比曲妥珠单抗联合雷莫西尤单抗和紫杉醇二线治HER2+胃癌患者的2/3期ASPEN-06研究已于2022年1月启动。 LM-305是国内首个进入临床开发阶段的GPRC5D靶向ADC，由抗GPRC5D单抗、蛋白酶可降解连接子和细胞毒素载荷单甲基奥瑞他汀 E (MMAE) 组成。GPRC5D是一种孤儿G蛋白偶联受体，研究发现65%的多发性骨髓瘤（MM）患者中GPRC5D有超过50%的表达阈值，且其表达水平与靶点BCMA相对独立。GPRC5D被认为是治疗MM的潜在靶标，目前仅强生的Talquetamab获批上市。该药是一款first-in-class现货型双特异性T细胞结合抗体，能同时靶向MM细胞上的GPRC5D和T细胞上的CD3，2023年8月被FDA批准用于治疗复发性或难治性MM成人患者。这些患者此前至少接受过四种疗法，包括蛋白酶体抑制剂、免疫调节剂和CD38抗体。此外，目前全球还有多款在研GPRC5D靶向药，其中OriCAR-017、MBS-314、LBL-034等处于2期临床。在研GPRC5D靶向药大多属于CAR-T疗法、双抗/三抗，ADC较少。LM-305在GPRC5D靶点领域进展虽慢，但胜在药物类型独特。 LM-24C5是一款抗CEACAM5/4-1BB双抗，其能以CEACAM5依赖性的方式特异性激活4-1BB，并具有局部的T细胞激活和减少全身毒性的作用。临床前研究中，观察到注射LM-24C5后一个月左右肿瘤完全消退，且无肿瘤小鼠在rechallenge试验中有抵抗力，这表明LM-24C5可以诱导长期的保护性免疫记忆。 CEACAM5，即癌胚抗原CEA相关细胞粘附分子5，广泛表达于内皮细胞、上皮细胞、免疫细胞等多种细胞类型表面。在正常组织内，CEACAM5主要作为细胞粘附分子，介导同质和异质性黏附。在肿瘤中，CEACAM5能使肿瘤细胞避免失巢凋亡，而且其在肿瘤组织中的过表达可破坏细胞极性分布，阻碍多种细胞的分化和成熟，从而可能导致肿瘤的发生。目前，CEACAM5靶点还未有药物获批上市，其中Tusamitamab ravtansine进展较快，目前处于3期临床。该药是赛诺菲于2014年从Immunogen公司引进的一款CEACAM5靶向ADC。2022年8月，信达生物与赛诺菲达成肿瘤领域战略合作，获得Tusamitamab ravtansine在中国的临床开发和独家商业化权益。遗憾的是，该药二线治疗CEACAM5阳性转移性非鳞状NSCLC的3期CARMEN-LC03研究错失主要终点，该项目被终止。其他CEACAM5靶向药大多处于1期临床。整体来看，LM-24C5竞争并不激烈，但该靶点未来前景如何还有待进一步验证。 LM-299是一种创新PD-1/VEGF靶向双抗，由一个抗VEGF抗体连接2个C端单域抗PD-1抗体组成。临床前期研究显示：LM-299能有效抑制PD-1和VEGF信号通路，增强抗肿瘤效果。毒理及药代动力学研究显示：LM-299具有良好安全性。 PD-（L)1/VEGF是双抗的热门靶点，目前仅康方的依沃西单抗获批上市，该药于今年5月在国内被批准联合培美曲塞和卡铂治疗经EGFR-TKI治疗后进展、EGFR突变局部晚期或转移性非鳞 NSCLC。此外，目前还有多款在研PD-（L）1/VEGF靶向双抗，如普米斯生物的PM8002/BNT327、宜明昂科的IMM2510、华奥泰的HB0025，其中PM8002进展较快，处于3期临床。整体来看，LM-299在PD-（L)1/VEGF靶向双抗领域进度较慢。处于临床前阶段的研发管线不在一一介绍，这些药物作用靶点大多比较新颖，且在研药物较少。总结作为成立5年左右的公司，礼新医药表现相当优异，在研管线超10种，其中LM-302已进入3期阶段。而且凭借差异化布局的产品管线获得资本和外部企业青睐，礼新医药先后完成多轮融资和对外授权。期待礼新医药在医药领域大放光彩。 END 【智药研习社线上研习会报名】来源：CPHI制药在线声明：本文仅代表作者观点，并不代表制药在线立场。本网站内容仅出于传递更多信息之目的。如需转载，请务必注明文章来源和作者。投稿邮箱：Kelly.Xiao@imsinoexpo.com ▼更多制药资讯，请关注CPHI制药在线▼ 点击阅读原文，进入智药研习社~

抗体药物偶联物引进/卖出快速通道临床3期并购

2024-11-07

·GlobeNewswire-Health Care

ALX Oncology Reports Third Quarter 2024 Financial Results and Provides Corporate Update

SOUTH SAN FRANCISCO, Calif., Nov. 07, 2024 (GLOBE NEWSWIRE) -- ALX Oncology Holdings Inc., (“ALX Oncology” or “the Company”) (Nasdaq: ALXO), a clinical-stage biotechnology company advancing therapies that boost the immune system to treat cancer in new ways and extend patients’ lives, today reported financial results for the third quarter ended September 30, 2024, and provided a corporate update. “We made substantial clinical progress during the third quarter, most notably announcing topline data from our ASPEN-06 Phase 2 trial in which our lead candidate evorpacept became the first and only CD47-blocking agent to show a durable clinical benefit and a well-tolerated safety profile in a prospective randomized clinical trial,” said Jason Lettmann, Chief Executive Officer of ALX Oncology. “These results provided further validation for evorpacept’s novel mechanism of action and our robust evorpacept clinical program. We anticipate achieving several additional clinical milestones in the near-term that could advance evorpacept towards being a best-in-class, combinable therapeutic across a wide range of cancer types.” Third Quarter 2024 Highlights and Recent Developments Reported topline data results in July from the multi-center, international ASPEN-06 Phase 2 clinical trial (NCT05002127) evaluating evorpacept in combination with HERCEPTIN® (trastuzumab), CYRAMZA® (ramucirumab) and paclitaxel (Evo-TRP) against trastuzumab, CYRAMZA (ramucirumab) and paclitaxel (TRP) for the treatment of patients with HER2-positive gastric/gastroesophageal junction (GEJ) cancer, where all patients had received an anti-HER2 agent in prior lines of therapy. Evorpacept improved tumor response in patients with HER2-positive gastric/GEJ cancer, becoming the first CD47 blocker to show promising and durable response with a well-tolerated safety profile in a prospective randomized study.Evo-TRP achieved a confirmed overall response rate (ORR) of 40.3% compared to 26.6% for the TRP control arm and demonstrated a median duration of response of 15.7 months compared to 7.6 months in the intent to treat population (ITT) (N=127). The primary analysis of the ITT compared Evo-TRP to an assumed RP control ORR of 30% Secondary endpoints of PFS and OS were immature at the time of analysis.Evo-TRP combination showed the greatest response with an ORR of 54.8% compared to 23.1% in the TRP control arm in a pre-specified population of patients with fresh HER2-positive biopsies (n=48). In September, commenced patient dosing to investigate evorpacept plus SARCLISA® (isatuximab-irfc) and dexamethasone in patients with relapsed or refractory multiple myeloma (RRMM) in the Sanofi-partnered arm of the randomized UMBRELLA phase 1/2 clinical study. Sanofi is conducting the two-part multicenter, randomized, open-label, controlled, parallel-group study (NCT04643002) to evaluate the safety, efficacy, pharmacokinetics and biomarker data of evorpacept in combination with SARCLISA and dexamethasone in patients with RRMM.Part 1 is evaluating the dosing of evorpacept in combination with standard doses of SARCLISA and dexamethasone to identify a recommended evorpacept dose.Part 2 is investigating the efficacy and safety of this three-drug combination in an expanded population of patients with RRMM. In August, enhanced the leadership team by appointing Alan Sandler, M.D. to Board of Directors, a distinguished leader in oncology and drug development with over 30 years of experience across industry and academia. Dr. Sandler’s industry background includes serving as Executive Vice President, Chief Medical Officer at Mirati Therapeutics, prior to its acquisition by Bristol Myers Squibb. Before joining Mirati, he served as President, Global Head of Development in Oncology at Zai Lab, and prior to that, he was the Senior Vice President and Global Head, Product Development of Oncology Solid Tumors at Genentech, a member of the Roche Group. Presented at the 2024 Cantor Fitzgerald Global Healthcare Conference in New York City in September. Participated in fireside chat with Analyst, Li Watsek and conducted investor meetings. Upcoming Clinical Milestones for Evorpacept’s Development Pipeline Breast Cancer – Results from a Phase 1b/2 combination trial evaluating evorpacept in combination with Jazz Pharmaceuticals’ zanidatamab in HER2-positive and HER2-low metastatic breast cancer will be presented at a poster spotlight presentation at the San Antonio Breast Cancer Symposium on December 12, 2024Gastric/GEJ Cancer – Updated results of ASPEN-06 Phase 2 clinical trial (1H 2025)Head and Neck Squamous Cell Carcinoma – Topline results from a Phase 2 randomized clinical trial of ASPEN-03 with KEYTRUDA® (pembrolizumab) (1H 2025)Head and Neck Squamous Cell Carcinoma – Topline results from a Phase 2 randomized clinical trial of ASPEN-04 with KEYTRUDA and chemotherapy (1H 2025)Urothelial Cancer – Updated results from a Phase 1 clinical trial of ASPEN-07 in combination with PADCEV® (enfortumab vedotin) (1H 2025)Gastric/GEJ Cancer – Initiation of Phase 3 registrational randomized clinical trial for evorpacept (mid-2025)Breast Cancer – Topline results from a Phase 1b I-SPY TRIAL with ENHERTU® (fam-trastuzumab deruxtecan-nxki) (2H 2025) Third Quarter 2024 Financial Results: Cash, Cash Equivalents and Investments: Cash, cash equivalents and investments as of September 30, 2024, were $162.6 million. The Company believes its cash, cash equivalents and investments, which includes the proceeds from sales under its at-the-market (“ATM”) offering in the first half of 2024 are sufficient to fund planned operations well into Q1 2026.Research and Development (“R&D”) Expenses: R&D expenses consist primarily of pre-clinical, clinical and manufacturing expenses related to the development of the Company’s current lead product candidate, evorpacept, and R&D employee-related expenses. These expenses for the three months ended September 30, 2024, were $26.5 million, compared to $45.8 million for the prior-year period. R&D expenses decreased by $19.3 million during the three months ended September 30, 2024, compared to the three months ended September 30, 2023. Lower expense was primarily attributable to a decrease of $22.2 million in clinical and development costs primarily due to manufacturing of clinical trial materials to support active clinical trials for our lead product candidate, evorpacept, slightly offset by increased preclinical costs for development of new targets, an increase in personnel and related costs, and an increase in stock-based compensation expense.General and Administrative (“G&A”) Expenses: G&A expenses consist primarily of administrative employee-related expenses, legal and other professional fees, patent filing and maintenance fees, and insurance. These expenses for the three months ended September 30, 2024, were $6.1 million, compared to $7.5 million for the prior year period. G&A expenses decreased by $1.4 million during the three months ended September 30, 2024, compared to the three months ended September 30, 2023. The decrease was primarily attributable to lower stock-based compensation expense and lower accounting consulting costs.Net loss: GAAP net loss was $30.7 million for the three months ended September 30, 2024, or ($0.58) per basic and diluted share, as compared to a GAAP net loss of $51.0 million for the three months ended September 30, 2023, or ($1.24) per basic and diluted share. Non-GAAP net loss was $23.7 million for the three months ended September 30, 2024, as compared to a non-GAAP net loss of $44.0 million for the three months ended September 30, 2023. A reconciliation of GAAP to non-GAAP financial results can be found at the end of this news release. About ALX Oncology ALX Oncology (Nasdaq: ALXO) is a clinical-stage biotechnology company advancing therapies that boost the immune system to treat cancer in new ways and extend patients’ lives. ALX Oncology’s lead therapeutic candidate, evorpacept, has demonstrated potential to serve as a cornerstone therapy upon which the future of immuno-oncology can be built. Evorpacept is currently being evaluated across multiple ongoing clinical trials in a wide range of cancer indications. More information is available at www.alxoncology.com and on LinkedIn @ALX Oncology. Cautionary Note Regarding Forward-Looking Statements This press release contains forward-looking statements that involve substantial risks and uncertainties. Forward-looking statements include statements regarding future results of operations and financial position, business strategy, product candidates, planned preclinical studies and clinical trials, results of clinical trials, research and development costs, regulatory approvals, timing and likelihood of success, plans and objects of management for future operations, as well as statements regarding industry trends. Such forward-looking statements are based on ALX Oncology’s beliefs and assumptions and on information currently available to it on the date of this press release. Forward-looking statements may involve known and unknown risks, uncertainties and other factors that may cause ALX Oncology’s actual results, performance or achievements to be materially different from those expressed or implied by the forward-looking statements. These and other risks are described more fully in ALX Oncology’s filings with the Securities and Exchange Commission (“SEC”), including ALX Oncology’s Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other documents ALX Oncology files with the SEC from time to time. Except to the extent required by law, ALX Oncology undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made. ALX ONCOLOGY HOLDINGS INC.Condensed Consolidated Statements of Operations(unaudited)(in thousands, except share and per share amounts) Three Months Ended Nine Months Ended September 30, September 30, 2024 2023 2024 2023 Operating expenses: Research and development$26,471 $45,766 $92,841 $100,011 General and administrative 6,096 7,509 19,013 22,244 Total operating expenses 32,567 53,275 111,854 122,255 Loss from operations (32,567) (53,275) (111,854) (122,255)Interest income 2,303 2,677 7,488 7,654 Interest expense (446) (391) (1,302) (1,150)Other (expense) income, net 3 (1) (19) 418 Net loss$(30,707) $(50,990) $(105,687) $(115,333)Net loss per share, basic and diluted$(0.58) $(1.24) $(2.05) $(2.82)Weighted-average shares of common stock used to compute net loss per shares, basic and diluted 52,693,878 41,147,938 51,544,501 40,963,015 Condensed Consolidated Balance Sheet Data(in thousands) September 30, December 31, 2024 2023 Cash, cash equivalents and investments$162,610 $218,147 Total assets$185,715 $242,553 Total liabilities$48,908 $52,841 Accumulated deficit$(591,959) $(486,272)Total stockholders’ equity$136,807 $189,712 GAAP to Non-GAAP Reconciliation(unaudited)(in thousands) Three Months Ended Nine Months Ended September 30, September 30, 2024 2023 2024 2023 GAAP net loss, as reported$(30,707) $(50,990) $(105,687) $(115,333)Adjustments: Stock-based compensation expense 6,952 6,964 21,235 19,552 Accretion of term loan discount and issuance costs 66 63 196 186 Total adjustments 7,018 7,027 21,431 19,738 Non-GAAP net loss$(23,689) $(43,963) $(84,256) $(95,595) Use of Non-GAAP Financial Measures We supplement our consolidated financial statements presented on a GAAP basis by providing additional measures which may be considered “non-GAAP” financial measures under applicable SEC rules. We believe that the disclosure of these non-GAAP financial measures provides our investors with additional information that reflects the amounts and financial basis upon which our management assesses and operates our business. These non-GAAP financial measures are not in accordance with generally accepted accounting principles and should not be viewed in isolation or as a substitute for reported, or GAAP, net loss, and are not a substitute for, or superior to, measures of financial performance performed in conformity with GAAP. “Non-GAAP net loss” is not based on any standardized methodology prescribed by GAAP and represents GAAP net loss adjusted to exclude stock-based compensation expense and accretion of term loan discount and issuance costs. Non-GAAP financial measures used by ALX Oncology may be calculated differently from, and therefore may not be comparable to, non-GAAP measures used by other companies.

临床结果临床2期临床1期财报并购

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研发状态

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适应症	最高研发状态	国家/地区	公司	日期
HER2表达胃腺癌	临床3期	美国	ALX Oncology, Inc.	2022-01-15
HER2表达胃腺癌	临床3期	美国	Eli Lilly & Co.	2022-01-15
HER2表达胃腺癌	临床3期	日本	Eli Lilly & Co.	2022-01-15
HER2表达胃腺癌	临床3期	日本	ALX Oncology, Inc.	2022-01-15
HER2表达胃腺癌	临床3期	澳大利亚	ALX Oncology, Inc.	2022-01-15
HER2表达胃腺癌	临床3期	澳大利亚	Eli Lilly & Co.	2022-01-15
HER2表达胃腺癌	临床3期	比利时	ALX Oncology, Inc.	2022-01-15
HER2表达胃腺癌	临床3期	比利时	Eli Lilly & Co.	2022-01-15
HER2表达胃腺癌	临床3期	捷克	ALX Oncology, Inc.	2022-01-15
HER2表达胃腺癌	临床3期	捷克	Eli Lilly & Co.	2022-01-15

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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


NCT05167409 (ASCO2024) 人工标引	临床2期	转移性微卫星稳定结直肠癌 Microsatellite Stable (MSS)	16	Evorpacept (E) 15 mg/kgcetuximabpembrolizumab	窪積壓網鏇構淵獵顧構(膚鹹艱壓淵鹹鹹簾鹽廠) = 願網構壓構淵廠糧鏇製簾願鑰醖構衊齋鏇鬱襯 (繭築襯繭淵壓蓋憲夢範 ) 更多	不佳	2024-05-24
NCT05524545 (ASCO2024) 人工标引	临床1期	局部晚期尿路上皮癌 \| 转移性尿路上皮癌	20	Evorpacept 20 mg/kgenfortumab vedotin	衊獵廠膚繭築願顧構廠(餘築淵憲壓壓簾膚襯築) = Not observed. 鬱範齋壓憲憲願艱鹹獵 (鏇壓鑰餘膚鬱糧糧獵淵 ) 更多	积极	2024-05-24
NCT04417517 (ASPEN-02, ASH2021) 人工标引	临床1/2期	骨髓增生异常综合征一线	13	azacitidine+evorpacept	鏇遞醖製築鹹蓋鬱淵製(鹹鏇築網壓鑰膚構積夢) = No DLTs were observed in any cohort. 醖艱築遞憲鏇鹹齋獵獵 (餘簾獵願鑰鹹餘壓鏇鏇 ) 更多	积极	2021-11-05
				azacitidine
NCT03013218 (ASPEN-01, ESMO_GI2021)	临床1期	HER2阳性胃食管交界处癌二线 trastuzumab	18	ALX148 15 mg/kg QW + Trastuzumab + Ramucirumab + Paclitaxel	鑰鏇廠構願顧觸壓衊膚(獵廠構膚鑰構衊獵夢願) = grade 3 decreased lymphocytes 選餘廠廠構選壓艱窪網 (鑰獵遞簾顧蓋簾構壓夢 )	积极	2021-07-03
SITC2020	N/A	头颈部鳞状细胞癌 \| 胃食管交界处癌	-	ALX148 10 mg/kg QW	夢艱鏇觸壓壓憲壓鑰鹽(繭襯衊餘遞壓夢繭選鬱) = Out of the 9 pts who experienced any adverse event, 7 pts reported treatment-related adverse events (TRAE). The most common TRAEs were low grade diarrhea, fatigue, pruritus and rash (each n=2,17%) 夢鹽膚憲網餘膚鏇願餘 (鹽糧鹽膚願餘積衊繭遞 ) 更多	-	2020-12-10
				Trastuzumab + Ramucirumab + Paclitaxel
EHA2020	临床1期	难治性非霍奇金淋巴瘤	-	ALX148 10 mg/kg QW + rituximab	鏇齋齋齋鬱餘範繭壓範(範鬱遞積齋糧願鹽鏇憲) = Twenty-six pts experienced any AE 鬱淵蓋壓窪淵顧窪膚齋 (積廠窪遞窪壓淵鏇顧蓋 ) 更多	积极	2020-05-14
				ALX148 15 mg/kg QW + rituximab
NCT03013218 (P340, SITC2018)	临床1期	非霍奇金淋巴瘤 \| 晚期癌症 CD47	48	ALX148	鏇築膚網簾製鹹齋齋顧(鬱獵鑰網衊壓鬱齋艱壓) = 築鹹糧繭鑰遞餘夢遞選壓膚範餘壓衊淵衊鏇憲 (製範選艱艱壓糧範網繭 )	积极	2018-11-06