CDK4 is highly expressed and associated with poor prognosis and decreased survival in advanced neuroblastoma (NB). Targeting CDK4 degradation presents a potentially promising therapeutic strategy compared to conventional CDK4 inhibitors. However, the autophagic degradation of the CDK4 protein and its anti-proliferation effect in NB cells has not been mentioned.

RESULTS:

We identified autophagy as a new pathway for the degradation of CDK4. Firstly, autophagic degradation of CDK4 is critical for NVP-BEZ235-induced G0/G1 arrest, as demonstrated by the overexpression of CDK4, autophagy inhibition, and blockade of autophagy-related genes. Secondly, we present the first evidence that p62 binds to CDK4 and then enters the autophagy-lysosome to degrade CDK4 in a CTSB-dependent manner in NVP-BEZ235 treated NB cells. Similar results regarding the interaction between p62 and CDK4 were observed in the NVP-BEZ235 treated NB xenograft mouse model.

CONCLUSIONS:

Autophagic degradation of CDK4 plays a pivotal role in G0/G1 cell cycle arrest in NB cells treated with NVP-BEZ235.

2024-08-01·PHYTOMEDICINE

Hernandezine acts as a CDK4 suppressor inhibiting tumor growth by the CDK4/PKM2/NRF2 axis in colon cancer

Article

作者: Lv, Jun-Lin ; Ren, Yu-Shan ; Liu, Huai-Yuan ; Cao, Xin-Yue ; Dong, Gui-Cheng ; Tan, Yu-Jun ; Li, Jie ; Zhang, Han ; Ma, Ru ; Zheng, Qiu-Sheng ; Chu, Ting

BACKGROUND:

The cyclin-dependent kinase 4 (CDK4) interacts with its canonical and non-canonical substrates modulating the cell cycle in tumor cells. However, the potential substrates and the beyond-cell-cycle-regulated functions of CDK4 in colon cancer (CC) are still unknown. Hernandezine (HER) is previously verified to induce G0/G1 phase arrest and autophagic cell death in human cancer cells, which implies that HER might target G0/G1 phase-related proteins, including CDK4.

PURPOSE:

The present study tried to investigate the glycolytic metabolism and oxidative stress functions of CDK4 in colon cancer. Furthermore, the inhibitory effects and potential binding sites of HER on CDK4, as well as its anti-tumor activity were investigated in CC cells.

METHODS:

The mass spectrometry assay was performed to identify potential endogenous substrates of CDK4 and the correlation between glycolytic metabolic rate and CDK4 level in COAD patient tissues. Meanwhile, after inhibiting the activity or the expression of CDK4, the binding capacity of CDK4 to PKM2 and NRF2 and the latter two protein distributions in cytoplasm and nucleus were detected in CC cells. In vitro, the regulatory effects of the CDK4-PKM2-NRF2 axis on glycolysis and oxidative stress were performed by ECAR, OCR, and ROS assay. The inhibitory effect of HER on CDK4 activity was explored in CC cells and the potential binding sites were predicted and testified in vitro. Furthermore, tumor growth inhibition of HER by suppressing the CDK4-PKM2-NRF2 axis was also investigated in vitro and in vivo.

RESULTS:

PKM2 and NRF2 were identified as endogenous substrates of CDK4 and, high-expressed CDK4 was associated with low-level glycolysis in COAD. In vitro, inactivated CDK4 facilitated CDK4-PKM2-NRF2 complex formation which resulted in 1) inhibited PKM2 activity and retarded the glycolytic rate; 2) cytoplasm-detained NRF2 failed to transcript anti-oxidative gene expressions and induced oxidant stress. Additionally, as a CDK4 inhibitor, HER developed triple anti-tumor effects including induced G0/G1 phase arrest, suppressed glycolysis, and disrupted the anti-oxidative capacity of CC cells.

CONCLUSION:

The results first time revealed that CDK4 modulated glycolytic and anti-oxidative capacity of CC cells via bound to its endogenous substrates, PKM2 and NRF2. Additionally, 140_Asp145_Asn amino acid sites of CDK4 were potential targets of HER. HER exerts anti-tumor activity by inhibited the activity of CDK4, promoted the CDK4-PKM2-NRF2 complex formation in the CC cells.

2024-07-01·Bioorganic & medicinal chemistry letters

Discovery and preclinical evaluations of TQB3616, a novel CDK4-biased inhibitor

Article

作者: Yang, Shuqun ; Liu, Yingchun ; Chen, Chen ; Chan, Chi-Chung ; Chen, Shuhui ; Lin, Ruibin ; Xia, Yuanfeng ; Xu, Xiongbin ; Zhu, Xiaoyu ; Ren, Bingjie ; Jiang, Wen ; Song, Baohui ; Li, Jian ; Tian, Xin ; Zhu, Yusong ; Li, Wei ; Xu, Zhaobing ; Hu, Lihong ; Zhang, Xiquan ; Yang, Ling ; Ding, Charles Z

Among small-molecule CDK4/6 inhibitors (palbociclib, ribociclib, and abemaciclib) approved for metastatic breast cancers, abemaciclib has a more tolerable adverse effects in clinic. This is attributable to preferential inhibition of CDK4 over CDK6. In our search for a biased CDK4 inhibitor, we discovered a series of pyrimidine-indazole inhibitors. SAR studies led us to TQB3616 as a preferential CDK4 inhibitor. TQB3616 exhibited improvements in both enzymatic and cellular proliferation inhibitory potency when tested side-by-side with the FDA approved palbociclib and abemaciclib. TQB3616 also possessed favorable PK profile in multiple species. These differentiated properties, together with excellent GLP safety profile warranted TQB3616 moving to clinic. TQB3616 entered into clinical development in 2019 and currently in phase III clinical trials (NCT05375461, NCT05365178).

项与 CDK4 inhibitor(Kinnate Biopharma) 相关的新闻（医药）

2024-10-30

·GlobeNewswire-Health Care

Arvinas Reports Third Quarter 2024 Financial Results and Provides Corporate Update

– On track to report topline data from Phase 3 VERITAC-2 trial in 4Q24 or 1Q25 – – Initial clinical data from Phase 1/2 TACTIVE-U sub-study of abemaciclib in combination with vepdegestrant to be presented at San Antonio Breast Cancer Symposium in December 2024 – – Recently presented new preclinical data for the PROTAC LRRK2 degrader ARV-102 demonstrating that LRRK2 degradation affects biomarkers in the CSF – - $1.1 billion in cash, cash equivalents and marketable securities as of Sept. 30, 2024 - – Company to host conference call today at 8:00 a.m. ET – NEW HAVEN, Conn., Oct. 30, 2024 (GLOBE NEWSWIRE) -- Arvinas, Inc. (Nasdaq: ARVN), a clinical-stage biotechnology company creating a new class of drugs based on targeted protein degradation, today reported financial results for the third quarter ended September 30, 2024, and provided a corporate update. “We maintained strong momentum across our portfolio in the third quarter and remain on track to report topline data from VERITAC-2, our Phase 3 clinical trial in metastatic breast cancer, in the fourth quarter of 2024 or the first quarter of 2025,” said John Houston, Ph.D., Chairperson, Chief Executive Officer and President at Arvinas. “In partnership with our colleagues at Pfizer, we are excited by the possibility of changing the treatment paradigm for ER+/HER2- breast cancer and look forward to sharing results from VERITAC-2 in the coming months.” “Our path to reaching our goal of becoming a multi-product, commercial-stage organization with a robust pipeline across several indications is clearly defined, and our novel PROTAC platform technology has the potential to enable opportunities across multiple therapeutic areas,” continued Dr. Houston. “We look forward to completing the multiple ascending dose portion of our Phase 1 clinical trial with ARV-102, our first PROTAC degrader with the potential to treat neurodegenerative diseases, and sharing data in 2025. We are also encouraged by the preclinical profile of ARV-393, our BCL6 PROTAC degrader currently being evaluated in a first-in-human Phase 1 clinical trial in patients with B-cell lymphomas. We look forward to sharing more about these programs in the coming months.” 3Q 2024 Business Highlights and Recent Developments Vepdegestrant Continued enrollment globally in multiple clinical studies of vepdegestrant in ER+/HER2- metastatic breast cancer. VERITAC-2: Phase 3 monotherapy clinical trial in patients with metastatic breast cancer (ClinicalTrials.gov Identifier: NCT05654623)TACTIVE-U: Phase 1b/2 combination umbrella trial evaluating combinations of vepdegestrant with abemaciclib, ribociclib, or samuraciclib (ClinicalTrials.gov Identifiers: NCT05548127, NCT05573555, and NCT06125522).TACTIVE-K: Phase 1/2 clinical trial with vepdegestrant plus Pfizer’s novel CDK4 inhibitor atirmociclib (ClinicalTrials.gov Identifier: NCT06206837) ARV-102: Oral PROTAC LRRK2 degrader In October, presented preclinical data at the 2024 Michael J. Fox Foundation Parkinson’s Disease Conference further supporting the potential of PROTAC-induced leucine-rich repeat kinase 2 (LRRK2) degradation as a potential treatment for patients with neurodegenerative diseases. New findings presented included data demonstrating: Orally delivered ARV-102 crosses the blood-brain barriers and degrades LRRK2 in the cerebrospinal fluid (CSF) of non-human primates (NHPs).Degradation of LRRK2 by ARV-102 induces changes in pathway (lysosomal and inflammation) biomarkers in the CSF of NHPs, which has not previously been demonstrated by kinase inhibitors of LRRK2.In murine tauopathy models, oral PROTAC LRRK2 degrader treatment led to ~50% pathologic tau reduction. Initiated the multiple ascending dose portion of the ongoing Phase 1 clinical trial in healthy volunteers. ARV-393: Oral PROTAC BCL6 degrader Continued recruiting patients in the first-in-human Phase 1 clinical trial in patients with B-cell lymphomas. Anticipated Upcoming Milestones and Expectations Vepdegestrant As part of Arvinas global collaboration with Pfizer, the companies plan to: Complete enrollment (4Q24) and announce topline data (4Q24/1Q25) for the VERITAC-2 Phase 3 monotherapy clinical trial in patients with metastatic breast cancer.Present initial safety and pharmacokinetic data from the TACTIVE-U sub-study (NCT05548127) of abemaciclib in combination with vepdegestrant at the San Antonio Breast Cancer Symposium (SABCS) in December 2024.Present data from the Phase 1 healthy volunteer pharmacokinetic trial of vepdegestrant in combination with midazolam to assess potential for drug-drug interaction at SABCS in December 2024 (NCT06256510).Continue enrollment of the ongoing Phase 1b/2 combination umbrella trial evaluating combinations of vepdegestrant with abemaciclib, ribociclib, or samuraciclib (TACTIVE-U; ClinicalTrials.gov Identifiers: NCT05548127, NCT05573555, and NCT06125522).Evaluate data from the study lead-in of the VERITAC-3 Phase 3 trial (NCT05909397) in patients with ER+/HER2- locally advanced or metastatic breast cancer (2H24).Continue enrollment and evaluate preliminary data from the ongoing clinical trial with vepdegestrant plus Pfizer’s novel CDK4 inhibitor atirmociclib (TACTIVE-K).Start Phase 3 combination trials in the first- and second-line settings (anticipated in 2025; pending emerging data and regulatory feedback). First-line setting with vepdegestrant plus atirmociclib or palbociclib.Second-line setting with vepdegestrant plus palbociclib and/or another CDK4/6 inhibitor. ARV-102: Oral PROTAC LRRK2 degrader Complete enrollment in the ongoing multiple ascending dose portion of a Phase 1 trial evaluating ARV-102 in healthy volunteersPresent data from the Phase 1 trial in 2025. ARV-393: Oral PROTAC BCL6 degrader Continue recruiting patients in the first-in-human Phase 1 clinical trial evaluating ARV-393 in patients with B-cell lymphomas. Novel PROTAC KRAS G12D degrader File an Investigational New Drug (IND) application in 2025. Financial GuidanceBased on its current operating plan, Arvinas believes its cash, cash equivalents, and marketable securities as of September 30, 2024, is sufficient to fund planned operating expenses and capital expenditure requirements into 2027. Third Quarter Financial Results Cash, Cash Equivalents, and Marketable Securities Position: As of September 30, 2024, cash, cash equivalents and marketable securities were $1,121.6 million as compared with cash, cash equivalents, restricted cash and marketable securities of $1,266.5 million as of December 31, 2023. The decrease in cash, cash equivalents and marketable securities of $144.9 million for the nine months ended September 30, 2024 was primarily related to cash used in operations of $158.1 million (net of $150.0 million received from the Novartis agreements), inclusive of a one-time cash termination fee in the amount of $41.5 million related to the termination of our laboratory and office space lease with 101 College Street LLC in August 2024 and the purchase of lab equipment and leasehold improvements of $1.5 million, partially offset by proceeds from the exercise of stock options of $7.7 million and unrealized gains on marketable securities of $7.2 million. Research and Development Expenses: Research and development expenses were $86.9 million for the quarter ended September 30, 2024, as compared with $85.9 million for the quarter ended September 30, 2023. The increase in research and development expenses of $1.0 million for the quarter was primarily due to an increase in compensation and related personnel expenses of $2.8 million, which are not allocated by program, partially offset by a decrease in external expenses of $2.2 million. External expenses include program-specific expenses, which decreased by $1.1 million, primarily driven by decreases in our ARV-766 and ARV-110 programs of $3.8 million and $1.6 million, respectively, partially offset by increases in our ARV-102 and ARV-393 programs of $2.5 million and $1.4 million, respectively, and our non-program specific expenses, which decreased by $1.1 million. General and Administrative Expenses: General and administrative expenses were $75.8 million for the quarter ended September 30, 2024, as compared with $22.6 million for the quarter ended September 30, 2023. The increase in general and administrative expenses of $53.2 million for the quarter was primarily due to a loss on the termination of our laboratory and office space lease with 101 College Street LLC of $43.4 million as well as increases in personnel and infrastructure related costs of $5.0 million, professional fees of $3.4 million and in developing our commercial operations of $1.2 million. Revenue: Revenue was $102.4 million for the quarter ended September 30, 2024 as compared with $34.6 million for the quarter ended September 30, 2023. Revenue for the quarter is related to the license agreement with Novartis, the Vepdegestrant (ARV-471) Collaboration Agreement with Pfizer, the collaboration and license agreement with Bayer and the collaboration and license agreement with Pfizer. The increase in revenue of $67.8 million was primarily due to revenue from the Novartis license agreement of $76.7 million, offset by a decrease in revenue from the Vepdegestrant (ARV-471) Collaboration Agreement with Pfizer of $7.6 million related to timing differences in clinical trials and program expenses and a decrease in revenue from Bayer of $1.1 million related to the termination of the Bayer Collaboration Agreement in August 2024. Investor Call & Webcast Details Arvinas will host a conference call and webcast today, October 30, 2024, at 8:00 a.m. ET to review its third quarter 2024 financial results and discuss recent corporate updates. Participants are invited to listen by going to the Events and Presentation section under the Investors page on the Arvinas website at www.arvinas.com. A replay of the webcast will be available on the Arvinas website following the completion of the event and will be archived for up to 30 days. About VepdegestrantVepdegestrant is an investigational, orally bioavailable PROTAC protein degrader designed to specifically target and degrade the estrogen receptor (ER) for the treatment of patients with ER positive (ER+)/human epidermal growth factor receptor 2 (HER2) negative (ER+/HER2-) breast cancer. Vepdegestrant is being developed as a potential monotherapy and as part of combination therapy across multiple treatment settings for ER+/HER2- metastatic breast cancer. In July 2021, Arvinas announced a global collaboration with Pfizer for the co-development and co-commercialization of vepdegestrant; Arvinas and Pfizer will share worldwide development costs, commercialization expenses, and profits. The U.S. Food and Drug Administration (FDA) has granted vepdegestrant Fast Track designation as a monotherapy in the treatment of adults with ER+/HER2- locally advanced or metastatic breast cancer previously treated with endocrine-based therapy. About ArvinasArvinas (Nasdaq: ARVN) is a clinical-stage biotechnology company dedicated to improving the lives of patients suffering from debilitating and life-threatening diseases. Through its PROTAC® (PROteolysis Targeting Chimera) protein degrader platform, the Company is pioneering the development of protein degradation therapies designed to harness the body’s natural protein disposal system to selectively and efficiently degrade and remove disease-causing proteins. Arvinas is currently progressing multiple investigational drugs through clinical development programs, including vepdegestrant, targeting the estrogen receptor for patients with locally advanced or metastatic ER+/HER2- breast cancer; ARV-393, targeting BCL6 for relapsed/refractory non-Hodgkin Lymphoma; and ARV-102, targeting LRRK2 for neurodegenerative disorders. Arvinas is headquartered in New Haven, Connecticut. For more information about Arvinas, visit www.arvinas.com and connect on LinkedIn and X. Forward-Looking StatementsThis press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995 that involve substantial risks and uncertainties, including statements regarding the expected timing in connection with the completion of enrollment and reporting of topline data from the VERITAC-2 clinical trial; the potential to change the treatment paradigm for ER+/HER2- breast cancer; the goal of becoming a multi-product, commercial-stage organization with a robust pipeline across several indications; novel PROTAC platform technology having the potential to enable opportunities across multiple therapeutic areas; plans to present initial safety and pharmacokinetic data from the TACTIVE-U sub-study of abemaciclib in combination with vepdegestrant at SABCS; plans to present data from the Phase 1 healthy volunteer pharmacokinetic trial of vepdegestrant in combination with midazolam at SABCS; plans to continue enrollment in the TACTIVE-U study and evaluate data from the study lead-in of the VERITAC-3 Phase 3 clinical trial; plans to continue enrollment and evaluate preliminary data from the TACTIVE-K clinical trial; the expected timing of initiation of Phase 3 vepdegestrant combination trials in the first- and second-line settings, pending emerging data and regulatory feedback; expected timing of filing an investigational new drug application for a KRAS G12D degrader; plans to compete enrollment in the multiple ascending dose portion of the ARV-102 Phase 1 clinical trial, the timing of the presentation of data from such clinical trial, and the timing of sharing additional information about the program; plans to continue recruiting patients in the Phase 1 ARV-393 clinical trial and timing of sharing additional information about the program; and statements regarding Arvinas’ cash, cash equivalents and marketable securities. All statements, other than statements of historical fact, contained in this press release, including statements regarding Arvinas’ strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, are forward-looking statements. The words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “predict,” “project,” “target,” “goal,” “potential,” “will,” “would,” “could,” “should,” “continue,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. Arvinas may not actually achieve the plans, intentions or expectations disclosed in these forward-looking statements, and you should not place undue reliance on such forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements Arvinas makes as a result of various risks and uncertainties, including but not limited to: Arvinas’ and Pfizer’s performance of the respective obligations with respect to Arvinas’ collaboration with Pfizer; whether Arvinas and Pfizer will be able to successfully conduct and complete clinical development for vepdegestrant; whether Arvinas will be able to successfully conduct and complete development for its other product candidates, including whether Arvinas initiates and completes clinical trials for its product candidates and receives results from its clinical trials and preclinical studies on its expected timelines or at all; whether Arvinas and Pfizer, as appropriate, will be able to obtain marketing approval for and commercialize vepdegestrant and other product candidates on current timelines or at all; Arvinas’ ability to protect its intellectual property portfolio; whether Arvinas’ cash and cash equivalent resources will be sufficient to fund its foreseeable and unforeseeable operating expenses and capital expenditure requirements, and other important factors discussed in the “Risk Factors” section of Arvinas’ Annual Report on Form 10-K for the year ended December 31, 2023 and subsequent other reports on file with the U.S. Securities and Exchange Commission. The forward-looking statements contained in this press release reflect Arvinas’ current views with respect to future events, and Arvinas assumes no obligation to update any forward-looking statements, except as required by applicable law. These forward-looking statements should not be relied upon as representing Arvinas’ views as of any date subsequent to the date of this release. ContactsInvestors:Jeff Boyle+1 (347) 247-5089Jeff.Boyle@arvinas.com Media:Kirsten Owens+1 (203) 584-0307Kirsten.Owens@arvinas.com Arvinas, Inc.Condensed Consolidated Balance Sheets (Unaudited) (dollars and shares in millions, except per share amounts)September 30, 2024December 31,2023Assets Current assets: Cash and cash equivalents$85.2 $311.7 Restricted cash — 5.5 Marketable securities 1,036.4 949.3 Accounts receivable 7.3 — Other receivables 7.5 7.2 Prepaid expenses and other current assets 13.1 6.5 Total current assets 1,149.5 1,280.2 Property, equipment and leasehold improvements, net 6.8 11.5 Operating lease right of use assets 1.0 2.5 Collaboration contract asset and other assets 9.8 10.4 Total assets$1,167.1 $1,304.6 Liabilities and stockholders' equity Current liabilities: Accounts payable and accrued liabilities$75.9 $92.2 Deferred revenue 199.2 163.0 Current portion of operating lease liabilities 0.8 1.9 Total current liabilities 275.9 257.1 Deferred revenue 304.5 386.2 Long-term debt 0.6 0.8 Operating lease liabilities 0.1 0.5 Total liabilities 581.1 644.6 Stockholders’ equity: Preferred stock, $0.001 par value, zero shares issued and outstanding as of September 30, 2024 and December 31, 2023, respectively — — Common stock, $0.001 par value; 68.7 and 68.0 shares issued and outstanding as of September 30, 2024 and December 31, 2023, respectively 0.1 0.1 Accumulated deficit (1,486.5) (1,332.7)Additional paid-in capital 2,068.3 1,995.7 Accumulated other comprehensive income (loss) 4.1 (3.1)Total stockholders’ equity 586.0 660.0 Total liabilities and stockholders’ equity$1,167.1 $1,304.6 Arvinas, Inc.Condensed Consolidated Statements of Operations (Unaudited) Three Months Ended September 30,Nine Months Ended September 30,(dollars and shares in millions, except per share amounts) 2024 2023 2024 2023 Revenue$102.4 $34.6 $204.2 $121.6 Operating expenses: Research and development 86.9 85.9 264.9 284.5 General and administrative 75.8 22.6 131.3 73.3 Total operating expenses 162.7 108.5 396.2 357.8 Loss from operations (60.3) (73.9) (192.0) (236.2)Interest and other income, net 11.7 10.0 39.2 25.5 Net loss before income taxes and loss from equity method investment (48.6) (63.9) (152.8) (210.7)Income tax (expense) benefit (0.6) — (1.0) 0.7 Loss from equity method investment — (0.1) — (2.5)Net loss$(49.2)$(64.0)$(153.8)$(212.5)Net loss per common share, basic and diluted$(0.68)$(1.18)$(2.14)$(3.97)Weighted average common shares outstanding, basic and diluted 72.1 54.1 71.9 53.6

临床1期财报引进/卖出临床3期快速通道

2024-10-02

·PMLiVE

Roche’s Genentech acquires Regor Pharmaceuticals’ CDK inhibitors for $850m upfront

Roche’s Genentech has agreed to pay Regor Pharmaceuticals $850m upfront to acquire the biotech’s portfolio of next-generation CDK inhibitors for breast cancer. Under the terms of the definitive purchase agreement, Genentech will be responsible for clinical development, manufacturing and commercialisation worldwide, while Regor will continue to manage two ongoing phase 1 trials to their completion. In addition to the upfront fee, Regor will be eligible to receive cash payments based on the achievement of certain predetermined development, regulatory and commercial milestones. Regor’s founder and chief executive officer, Xiayang Qiu, said: “Genentech is well-positioned to bring these novel therapeutics to their full potential to benefit patients with breast cancer around the world. We are proud of the strong data we have generated to date.” Breast cancer is the most common cancer in the UK, where approximately 56,800 new cases of the disease are diagnosed every year. Regor shared promising results from a phase 1a trial of its next generation CDK4 inhibitor in December last year. The candidate, RGT-419B, was shown to be safe and well-tolerated across 12 patients with hormone receptor (HR)-positive, HER2-negative advanced breast cancer who had progressed on CDK4/6 inhibitors and endocrine therapy, and demonstrated single agent efficacy. Qiu said at the time of the announcement: “With the favourable safety profile and promising monotherapy efficacy, RGT-419B has best-in-class potential as a single agent or in combination in HR-positive, HER2-negative breast cancer patients resistant to CDK4/6 inhibitors, and in earlier lines of treatments. “Clinical studies of single agent dose expansion and combination of RGT-419B with endocrine therapy are underway.” The deal comes less than two months after Genentech entered into a licence agreement worth over $1.9m with Sangamo Therapeutics to develop intravenously-administered genomic medicines for neurodegenerative diseases. The company also entered into a multi-year collaboration and licence agreement with GenEdit in January worth up to $644m to discover and develop novel nanoparticles to deliver its genetic medicines for autoimmune diseases.

临床1期引进/卖出临床结果

2024-10-01

·Pharmaceutical Technology

Genentech buys Regor’s CDK inhibitors in $850m deal

Roche announced the agreement at its annual pharma day in London, UK. Image shows Roche’s head office in California, USA. Credit: Michael Vi via Shutterstock. Genentech is strengthening its oncology pipeline by acquiring Regor Pharmaceuticals’ portfolio of breast cancer cyclin-dependent kinase (CDK) inhibitors in an $850m deal. The deal, anticipated to close in Q4 2024, was unveiled by Genentech’s parent company Roche at its pharma day in London. The pharmaceutical giant also shared that it is focusing on three major therapeutic areas – one being oncology. Regor will continue to oversee its two ongoing Phase I trials of the CDK4/2 inhibitor RGT-419B until their completion. At that point, Genentech will take over the global clinical development, manufacturing, and commercialisation of the candidate. The deal also includes preclinical candidate RGT-587, which is a “Phase I ready” CDK4 inhibitor, intended to treat brain metastases. One of Regor’s Phase Ia trials (NCT05304962) is investigating RGT-419B in 12 patients with HR+/HER2-negative advanced breast cancer who had previously undergone CDK4 treatment. Data showed that RGT-419B, administered as a monotherapy, achieved a 28.6% partial response rate and a 44% clinical benefit rate with no dose-limiting toxicities observed. The other Phase I trial (NCT06299124) is enrolling 40 subjects in China and is set to conclude at the end of this year. In the announcement accompanying the deal, Regor’s CEO Xiayang Qiu said: “Genentech is well-positioned to bring these novel therapeutics to their full potential to benefit patients with breast cancer around the world.” See Also: Fresenius Kabi wins FDA approval for Stelara biosimilar Otulfi BMS and Prime ink potential $3.5bn deal to develop T cell therapies During Roche’s 30 September presentation, CEO Teresa Graham said CDK inhibitors are “a perfect fit” with the company’s breast cancer franchise. Graham also touted some of the breast cancer assets that Roche already has on the market, including Phesgo (hyaluronidase, pertuzumab and trastuzumab), Kadcyla (trastuzumab emtansine), and Perjeta (pertuzumab). These three assets pulled in global sales of $1.25bn, $2.2bn, and $4.2bn respectively in 2023, as per Roche’s financials. Graham also highlighted inavolisib, a first-line PIK3CA-mutated hormone receptor for positive breast cancer. The candidate has a 27 November PDUFA date. Several companies have struck deals to acquire CDK inhibitors, targeted therapies that block proteins that regulate cell division to slow or stop the growth of cancer cells. In July 2024, Exscientia acquired a CDK7 inhibitor being trialled in patients with advanced or metastatic solid tumours. This is after buying out its development partner Apeiron Therapeutics’ shares of the programme. However, Roche’s global head of oncology and haematology product development Charles Fuchs highlighted that there is an unmet need for agents targeting CDK4/6i resistance, with most patients progressing after CDK4/6i treatment. According to Regor, RGT-419B is the most advanced CDK4/2 inhibitor in the clinic. It’s not the first time Regor has struck a deal with a big pharma company. In December 2021, the biotech entered into a $1.5bn agreement with Eli Lilly to discover, develop and market new treatments for metabolic disorders. Under the terms of the deal, Lilly secured a licence to select the intellectual property of Regor with an option for a licence extension.