23.7 C
Vientiane
Wednesday, October 15, 2025
spot_img

Mabwell Announces Latest Clinical Results of Novel B7-H3-Targeting ADC 7MW3711 to Be Presented at 2025 ESMO Congress

This Week

SHANGHAI, Oct. 15, 2025 /PRNewswire/ — Mabwell (688062.SH), an innovative biopharmaceutical company with entire industry chain, announced that clinical research results of its novel B7-H3-targeting ADC (R&D code: 7MW3711) for multiple advanced solid tumors, will be presented as a poster at the European Society for Medical Oncology (ESMO) Congress 2025.

As of Sep. 15, 2025, 74 patients with advanced solid tumor were enrolled and treated with 7MW3711 in the phase I/II study. Among 54 patients treated at 4.0 mg/kg or above and reaching tumor assessment, 19 partial responses (PRs) or complete responses (CRs) were observed. 7 patients with esophageal cancer (EC) were enrolled at 4.0 mg/kg or above and achieved an objective response rate (ORR) of 42.9% and a disease control rate (DCR) of 100%. Among lung cancer patients treated at the 4.0 mg/kg Q2W and reaching tumor assessment, the ORR for small cell lung cancer (SCLC) and squamous non-small cell lung cancer (Sq-NSCLC) were 50.0% and 38.5% respectively, with DCR of 90.0% and 92.3% respectively.

No dose-limiting toxicities (DLTs) were observed in the dose escalation phase, and the maximum tolerated dose (MTD) has not yet been reached. The most common Grade ≥3 TEAEs were white blood cell (WBC) count decreased, neutrophil count decreased, anemia, lymphocyte count decreased, platelet count decreased.

The study results suggest encouraging efficacy of 7MW3711 in advanced solid tumors, especially in esophageal and lung cancer.

About 7MW3711

7MW3711 is a novel B7-H3-targeting ADC independently developed by Mabwell. Given the expression profile and distribution of B7-H3, ADCs targeting B7-H3 hold promising therapeutic potential for cancers with significant unmet medical needs, including lung cancer, sarcoma, prostate cancer, head and neck cancer, and esophageal carcinoma, indicating broad market prospects.

7MW3711 is pharmaceutical characterized as stable structure, homogeneous composition, high purity, and it is suitable for industrial scale-up. Compared with ADCs in the same class worldwide, 7MW3711 has shown better tumor killing effects in multiple animal tumor models. 7MW3711 utilizes a novel camptothecin payload, which demonstrates stronger antitumor activity than DXd payloads in preclinical studies. Developed with site-specific conjugation technology, 7MW3711 is a homogeneous ADC with a drug-antibody ratio of 4, ensuring optimal stability and batch-to-batch consistency. Its payload is released through tumor tissue protease hydrolysis, further enhancing systemic stability in humans. In the safety evaluation model of animals including cynomolgus monkeys, 7MW3711 demonstrated good safety profile and pharmacokinetic properties.

About Mabwell

Mabwell (688062.SH) is an innovation-driven biopharmaceutical company with capabilities spanning the entire pharmaceutical value chain. The company is committed to providing more effective and accessible therapies to meet global medical needs, with a focus on oncology and aging-related diseases. Mabwell’s mission is “Explore Life, Benefit Health” and its vision is “Innovation, from Ideas to Reality.” For more information, please visit www.mabwell.com/en.

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 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.

Latest article