PD-1

SHANGHAI, March 19, 2024 /PRNewswire/ -- Mabwell (688062.SH), an innovative-driven biopharmaceutical company with entire industry chain, presented the clinical study data of the 9MW2821 for patients with cervical cancer as focused plenary oral presentation at the Society of Gynecologic Oncology (SGO) annual meeting on March 16, 2024. The data showed good efficacy and safety of 9MW2821 in patients with cervical cancer, which is expected to bring new breakthroughs for the treatment of recurrent or metastatic cervical cancer, meeting a large number of unmet clinical needs. 9MW2821 is the first drug to report clinical data for the indication of cervical cancer among the drugs with the same target in the world. Report on Study Data of Nectin-4-Targeting Antibody-drug Conjugate ( ADC ) for the Treatment of Recurrent or Metastatic Cervical Cancer This phase I/II, multicenter, open-label, clinical study was led by Professor Zhang Jian of Fudan University Shanghai Cancer Center, and Professor Yang Huijuan of Fudan University Shanghai Cancer Center represented the study team to give an in-depth report at the meeting. The study results were highly recognized by experts on site. Further clinical study data are expected to provide more treatment options for patients with recurrent or metastatic cervical cancer. Clinical Findings The systemic treatment drug options and efficacy for recurrent or metastatic cervical cancer are relatively limited. The cervical cancer cohort in the phase I/II study of 9MW2821 enrolled patients with Nectin-4-positive recurrent or metastatic cervical cancer who had progressed on or after doublet platinum-containing chemotherapy with or without bevacizumab and received no more than two previous systemic regimens for recurrent or metastatic disease. Eligible patients received intravenous 9MW2821 1.25mg/kg on days 1, 8 and 15 of each 28-day cycle until confirmed disease progression, death, intolerable adverse effects or withdrawal from the study. As of September 25, 2023, in the cervical cancer expansion cohort of the study, the detection rate of Nectin-4 expression was 89.67%, and the rate of Nectin-4 IHC 3+ was 67.82%. A total of 40 patients were enrolled in the study, 57.5% of the patients had previously received platinum-based doublet chemotherapy combined with bevacizumab, and 60% of the patients had previously received platinum-based doublet chemotherapy and immune checkpoint inhibitor therapy. In terms of efficacy, the overall response rate (ORR) and disease control rate (DCR) of 37 patients evaluable for efficacy were 40.54% and 89.19%, respectively, with one complete response (2.70%) and 14 partial responses (37.84%). Median progression-free survival (PFS), overall survival (OS), and duration of response (DOR) were not reached yet. Among patients with Nectin-4 IHC 3+, the ORR and DCR of 26 patients evaluable for efficacy were 50.00% and 92.31%, respectively. Among patients on or after doublet platinum-containing chemotherapy, the ORR and DCR of 21 patients evaluable for efficacy were 38.10% and 85.71%, respectively. In terms of safety, treatment-related adverse events (TRAEs) occurred in 92.50% of participants. Grade3-4 TRAEs occurred in 70.00% of participants, with neutropenia (40.00%), rash (17.50%) and gamma-glutamyl transferase increased (12.50%) being the most frequently reported. Nodeaths related to treatment were reported. The above study results indicate that 9MW2821 has controllable safety and positive efficacy in patients with cervical cancer. About 9MW2821 9MW2821 is the first site-specific conjugated novel ADC targeting Nectin-4 developed by Mabwell using ADC platform and automated high-throughput hybridoma antibody molecular discovery platform, and is the first product to enter clinical study among the products with the same target developed by Chinese companies. Multiple clinical studies of 9MW2821 have been conducted in China to evaluate the safety, tolerability, pharmacokinetic characteristics, and efficacy of 9MW2821 in patients with various advanced solid tumors. The phase III clinical study of 9MW2821 monotherapy has officially been initiated in patients with locally advanced or metastatic urothelial carcinoma who have previously received platinum-based chemotherapy and PD-(L)1 inhibitor therapy. The phase I/II clinical study of 9MW2821 in combination with PD-1 inhibitors is also ongoing, with the first patient already enrolled. The phase II clinical study for the indication of esophageal carcinoma will continue enrollment and evaluation, and communication for the initiation of phase III clinical study will be expedited. 9MW2821 was granted Fast Track Designation (FTD) by the U.S. Food and Drug Administration (FDA) in February 2024 for the treatment of advanced, recurrent, or metastatic esophageal squamous cell carcinoma. Currently, 9MW2821 is the first therapeutic drug targeting Nectin-4 in the world to disclose clinical efficacy and safety data for indications of cervical cancer and esophageal carcinoma. About Cervical Cancer Cervical cancer is the 4th most common neoplasm and the 4th leading cause of cancer death in females worldwide (excerpted from "Worldwide trends in cervical cancer incidence and mortality, with predictions for the next 15 years, Cancer 2021"). According to the "World Cancer Report 2020" released by the International Agency for Research on Cancer (IARC), there were 600 thousand new cases of cervical cancer worldwide in 2020 and up to 340 thousand deaths caused by cervical cancer. In February 2024, the National Cancer Center published the Cancer Burden Data in China in 2022 on Journal of the National Cancer Center (JNCC), showing that there were 150.7 thousand new cases of cervical cancer and 55.7 thousand deaths in China, ranking 8th and 9th respectively in terms of new cases and number of deaths. Compared with the 119 thousand new cases and 37 thousand deaths released in February 2022 for the same period in 2016, significant increases are observed. About Mabwell Mabwell (688062.SH) is an innovation-driven biopharmaceutical company with the entire value chain of the pharmaceutical industry. We provide more effective and accessible therapy and innovative medicines to fulfill global medical needs. Since 2017, an advanced R&D system which covers target discovery, early discovery, druggability, preclinical, clinical research and manufacturing transformation was established. Mabwell has 14 pipeline products in different stages based on a world-class and state-of-the-art R&D engine, including 10 novel drug candidates and 4 biosimilars. We focus on the therapeutic areas of oncology, auto-immune diseases, metabolic disorders, ophthalmologic diseases and infectious diseases, etc. Of these, 2 products have been approved and commercialized, 2 products have been filed for MA approval, 3 products are in pivotal trials. We have also undertaken 1 national major scientific and technological special project for "Significant New Drugs Development", 2 projects for National Key R&D Programmes, and multiple provincial and municipal science and technological innovation projects. Mabwell's Taizhou factory possesses robust in-house manufacturing capability compliant with international GMP standards regulated by the NMPA, FDA and EMA, and has passed the EU QP Audit. The large-scale manufacturing base located in Shanghai is under construction. Our mission is "Explore Life, Benefit Health" and our vision is "Innovation, from ideas to reality". For more information, please visit . Forward-Looking Statements This press release contains forward-looking statements including, but not limited to, the potential safety, efficacy, regulatory review or approval and commercial success of our product candidates and those relating to the Company's product development, clinical studies, clinical and regulatory milestones and timelines, market opportunity, competitive position, possible or assumed future results of operations, business strategies, potential growth opportunities and other statements that are predictive in nature. "Forward-looking statements" are statements that are not historical facts and involve a number of risks and uncertainties, which may cause actual results to be materially different from any future results expressed or implied in the forward-looking statements. These statements may be identified by the use of forward-looking expressions, including, but not limited to, "expect," "anticipate," "intend," "plan," "believe," "estimate," "potential," "predict," "project," "should," "would," and similar expressions and the negatives of those terms. Forward-looking statements are based on the Company's current expectations and assumptions. Forward-looking statements are subject to a number of risks, uncertainties, and other factors, many of which are beyond the Company's control, including, but not limited to: environment; politic; economy; society; legislation; our dependence on our product candidates, most of which are still in preclinical or various stages of clinical development; our reliance on third-party vendors, such as contract research organizations and contract manufacturing organizations; the uncertainties inherent in clinical testing; our ability to complete required clinical trials for our product candidates and obtain approval from regulatory authorities for our product candidates; our ability to protect our intellectual property; the potential impact of COVID-19; the loss of any executive officers or key personnel. In case one or more of these risks or uncertainties deteriorate, or any assumptions are incorrect, the actual results may be seriously inconsistent with the stated results. The Company cautions all the persons not to place undue reliance on any such forward-looking statements, which speaks only as of the date of this press release. The Company disclaims any obligation, except as specifically required by law and the rules of the applicable Stock authority to publicly update or revise any such statements to reflect any change in expectations or in events, conditions, or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward-looking statements. All forward-looking descriptions, figures and assumptions in this press release are applicable to this statement. SOURCE Mabwell

2024 Harrington Prize for Innovation in Medicine Recognizes Pioneering Work in Immunology CLEVELAND, March 19, 2024 /PRNewswire/ -- The eleventh annual Harrington Prize for Innovation in Medicine has been awarded to Arlene H. Sharpe, MD, PhD, Kolokotrones University Professor and Chair of the Department of Immunology at Harvard Medical School. The award recognizes her breakthrough discoveries in immune regulation, which have established foundational principles in immunology and led to new cancer therapies that act by boosting the immune response to cancer. The Harrington Prize for Innovation in Medicine, established in 2014 by the Harrington Discovery Institute at University Hospitals and the American Society for Clinical Investigation (ASCI), honors physician-scientists who have moved science forward with achievements notable for innovation, creativity and potential for clinical application. Dr. Sharpe's research in immunology has led to significant advances in medical treatments. Her work helped identify key pathways that restrain the activity of T lymphocytes (immune cells) to fight cancer. Her work defined the PD-1 pathway and its immunoinhibitory functions as well as the inhibitory functions of CTLA-4 to restrain the activity of the immune system. Dr. Sharpe's research thus laid the foundation for the development of 'immune checkpoint inhibitors', drugs that target PD-1 and related pathways. These therapies, including pembrolizumab and nivolumab, have been approved by the FDA for treating numerous types of cancer. They work by preventing inhibition of T cell function, thereby unleashing the body's immune system to fight cancer cells more effectively. This approach has become a cornerstone in cancer treatment strategies. "Dr. Sharpe's body of work has shaped our understanding of the role of the T cell in regulating the immune response. Her innovative scientific discoveries are among the best examples of bench-to-bedside work in the past three decades," said Benjamin D. Humphreys, MD, PhD, Joseph Friedman Professor of Renal Diseases in Medicine and Chief, Division of Nephrology, Washington University in St. Louis and 2023-2024 President of the ASCI. "Immune checkpoint inhibitors are drugs that allow for dramatic remission, and even cures, of cancers that had previously been considered untreatable. Dr. Sharpe's foundational insights have thus been harnessed to transform cancer therapy. Her work provides a beautiful example of physician impact through creative science," said Jonathan S. Stamler, MD, President, Harrington Discovery Institute, Robert S. and Sylvia K. Reitman Family Foundation Distinguished Professor of Cardiovascular Innovation and Professor of Medicine and of Biochemistry at University Hospitals and Case Western Reserve University. A committee composed of members of the ASCI Council and the Harrington Discovery Institute Scientific Advisory Board reviewed nominations from leading academic medical centers globally before selecting the 2024 Harrington Prize recipient. In addition to sharing the Prize's $20,000 honorarium, Dr. Sharpe will deliver the Harrington Prize Lecture at the 2024 AAP/ASCI/APSA Joint Meeting on April 5, will be a featured speaker at the 2024 Harrington Scientific Symposium May 22-23, and will publish an essay in the Journal of Clinical Investigation. The Harrington Prize has recognized outstanding and diverse innovations in medicine: 2014: Harry Dietz, MD, Johns Hopkins University, for his contributions to the understanding of the biology and treatment of Marfan syndrome, a disorder leading to deadly aneurysms in children and adults. 2015: Douglas R. Lowy, MD, The National Cancer Institute, in recognition of his discoveries that led to the development of the Human Papillomavirus vaccine to prevent cervical cancer. 2016: Jeffrey M. Friedman, MD, PhD, The Rockefeller University, for his discovery of leptin, which controls feeding behavior and is used to treat related clinical disorders. 2017: Jointly awarded to Daniel J. Drucker, MD, Mount Sinai Hospital, Canada, Joel F. Habener, MD, Massachusetts General Hospital, and Jens J. Holst, MD, DMSc, University of Copenhagen, Denmark, for their discovery of incretin hormones and for the translation of these findings into transformative therapies for major metabolic diseases such as diabetes. 2018: Helen H. Hobbs, MD, UT Southwestern Medical Center, for the discovery of the link between a gene mutation (PCSK9) and lower levels of LDL, which has improved the treatment of high cholesterol. 2019: Carl H. June, MD, University of Pennsylvania, for advancing the clinical application of CAR T therapy for cancer treatment, and for his sustained contributions to the field of cellular immunology. 2020: Stuart H. Orkin, MD, Harvard University, for breakthrough discoveries on red blood cells that offer new treatments for patients with sickle cell disease and beta-thalassemia, which are among the most common genetic disorders. 2021: Warren J. Leonard, MD, and John J. O'Shea, MD, NIH, for their respective contributions to the field of immunology, from fundamental discovery to therapeutic impact. 2022: James E. Crowe Jr., MD, and Michel C. Nussenzweig, MD, PhD, for their groundbreaking work, which has elucidated fundamental principles of the human immune response and enabled the use of human antibodies to treat COVID-19. 2023: Jean Bennett, MD, PhD, and Albert M. Maguire, MD, for their groundbreaking translational research to restore sight in inherited genetic diseases. SOURCE Harrington Discovery Institute

AstraZeneca and GSK aim to bring their PD-1/L1 combinations to a broad front-line endometrial cancer population. After a quick FDA approval in a subset of endometrial cancer, GSK is back with more data for two Jemperli regimens in hopes of reaching a broader patient population. And AstraZeneca, utilizing a similar immunotherapy strategy, has also come up with a rivaling update as it awaits an FDA decision. For GSK, Jemperli plus chemotherapy showed a “clinically meaningful trend” in reducing the risk of death by 21% among patients with advanced endometrial cancer that’s mismatch repair proficient (pMMR) or microsatellite stable (MSS). Patients on the Jemperli regimen lived a median 34 months, compared with 27 months for those on chemo alone. The data, from an exploratory analysis of the first part of the phase 3 RUBY trial, were shared at the Society of Gynecologic Oncology (SGO) annual meeting. They come as part of a statistically significant overall survival win for the Jemperli-chemo combo in the overall trial group as it cut the risk of death by 31% in a broader endometrial cancer population that also includes patients with mismatch repair deficient (dMMR) or microsatellite instability-high (MSI-H) tumors. With the updated analysis from RUBY Part 1, GSK said it expects the FDA will accept its submission to expand the PD-1 inhibitor Jemperli to the overall front-line endometrial cancer population in the first half of this year. The Jemperli-chemo combo was already greenlighted in July just for dMMR/MSI-H patients, who account for about 15% to 20% of new advanced endometrial cancer diagnoses in the U.S. Simultaneously, Part 2 of the RUBY trial found that a cocktail of Jemperli, chemo and GSK’s PARP inhibitor Zejula reduced the risk of progression or death by 37% in pMMR/MSS patients, according to data shared at SGO 2024. For the overall population, which also includes dMMR/MSI-H patients, the risk reduction was 40%. The Part 2 findings are particularly meaningful for patients with pMMR/MSS tumors as they further improved on the benefit observed for the Jemperli-chemo regimen in Part 1, Mansoor Raza Mirza, M.D., from the Copenhagen University Hospital and RUBY principal investigator, said in a statement Saturday. Previously, Jemperli and chemo cut the risk of progression or death by 24% versus chemo in the pMMR subgroup. However, the Part 2 data also raised the question of whether the further addition of Zejula is necessary for dMMR/MSI-H patients. Among that subset of patients, the Zejula-Jemperli-chemo combo showed a 52% advantage in progression-free survival over chemo alone, which was even smaller than the impressive 72% risk reduction Jemperli-chemo had posted without the PARP drug. Zejula appears to have brought extra toxicity. In Part 1, grade 3 or higher treatment-emergent adverse events were about 12% higher for Jemperli and chemo compared with control. In Part 2, the Zejula-containing regimen tripled that difference to about 36%. The potential longer-term detriment from PARP inhibitors have lately drawn attention at the FDA, leading to market withdrawal, restricted new approval or delayed application.  A GSK spokesperson said the company was unable to provide additional details about its regulatory plans at this time. Meanwhile, AstraZeneca could face the same question of patient selection for its PD-L1 inhibitor Imfinzi and Merck-shared PARP drug Lynparza in first-line endometrial cancer. In an interim analysis of AZ’s phase 3 DUO-E trial shared at SGO 2024, a combination of Imfinzi, Lynparza and chemo cut the risk of death in dMMR/MSI-H endometrial cancer patients by 72% over chemo, a slight improvement from the 66% posted by the Imfinzi-chemo pairing. None of these numbers were mature or statistically significant. Previously, the trial found that the Lynparza-containing regimen reduced the risk of progression or death by 59% over chemo alone, whereas Imfinzi and chemo could already cut that risk by 58%, according to results announced in October. In the overall trial population that also includes pMMR patients, the Imfinzi-chemo pairing so far cut the risk of death by 23%, whereas the Lynparza-containing regimen delivered a 41% showing. Again, the data were immature as only 28% of deaths had happened across the three trial arms before a final overall survival analysis. The overall survival data are promising at this early stage of maturity, Andrea Mugan, AstraZeneca’s global franchise head of gynecological and genitourinary cancers, said in an interview with Fierce Pharma. As PARP inhibitor’s contribution in dMMR tumors comes into question, AZ also faces the question of whether Imfinzi could handle pMMR disease without Lynparza. During the current interim analysis, Imfinzi plus chemo only pared down the risk of death by 9% in pMMR patients, while adding Lynparza widened that to 31%. Imfinzi-chemo showed a progression-free survival benefit of 23% in this subgroup, versus 43% for the Lynparza regimen, according to data first released in October. “We do believe in the data we’re showing for the benefit of both regimens in the first-line endometrial cancer population,” Mugan said. But she acknowledged that Imfinzi showed the biggest benefit in the dMMR population, and that the “incremental benefit” for Lynparza was more pronounced in the pMMR subgroup. AZ’s filings for DUO-E have been accepted by the FDA, the European Medicines Agency and regulators in Japan, the company said. It’s not clear whether AZ is gunning for approvals for both regimens for both dMMR and pMMR cancers.