FOLR1 positive

Mirvetuximab soravtansine (MIRV) is an antibody-drug conjugate approved for the treatment of adult patients with folate receptor 1 (FRα; FOLR1) positive, platinum-resistant epithelial ovarian, fallopian tube, or primary peritoneal cancer, who have received one to three prior systemic treatment regimens...Our study highlights several factors contributing to heterogeneity in FOLR1 reporting. Future studies are needed to better understand the impact of FOLR1 heterogeneity on patient response to therapy.

Antibody design through combined glycoengineering and Fc point mutations to enhance FcγRIIIa engagement of tumor-infiltrating effector cells may be a promising strategy for developing therapies for patients with aggressive and treatment-resistant breast cancers. Assessment of Fc receptors and immune cells in breast cancer enables development of tailored engineering strategies for tumor-targeting monoclonal antibodies with enhanced immune-stimulating and anticancer attributes by combining glycoengineering and Fc mutations.

P2/3, N=600, Terminated, Sutro Biopharma, Inc. | Trial completion date: Feb 2028 --> Aug 2025 | Recruiting --> Terminated | Trial primary completion date: Aug 2027 --> Aug 2025; Due to strategic business considerations, Sutro has deprioritized the development of luveltamab tazevibulin, leading to termination of the REFRaME program. This decision is not related to any safety or efficacy concerns associated with luvelta

A positive correlation between HER2 and FOLR1 overexpression may be seen in high-grade endometrial carcinomas with aberrant p53 expression, which may extend to intratumoral heterogeneity of biomarker expression.

They likely establish a cytokine gradient from the tumor site, harnessing the full potential of the natural local anti-infection response to target cancer cells. Thus, Evobodies represent a novel, first-in class of biologics for solid tumor treatment and are well-suited for further clinical development.

Currently, mirvetuximab soravtansine and tisotumab vedotin have been approved by the Food and Drug Administration for the treatment of folate receptor-alpha-positive, platinum-resistant ovarian cancer and recurrent cervical cancer, respectively, exhibiting promising objective response rates and manageable toxicity profiles in pivotal clinical trials...Additionally, multiple investigational ADCs, such as upifitamab rilsodotin (targeting NaPi2b), trastuzumab deruxtecan (targeting HER2), and sacituzumab govitecan (targeting trophoblast cell surface antigen 2), have demonstrated preliminary efficacy in ongoing clinical trials, offering new therapeutic opportunities for gynecologic malignancies. This review comprehensively summarizes the current clinical applications and research progress of ADCs in gynecologic cancers, including key clinical trials, therapeutic efficacy, safety profiles, and associated challenges. Furthermore, we discuss future optimization strategies, including the identification of novel targets, rational combination therapies, and molecular design improvements to advance ADC-based precision treatment in gynecologic oncology.

Our real-world experience with MIRV mirrors previously published data and suggests a benefit may also be seen in a more heavily pretreated population. Toxicities were similar to those previously reported, although our increased incidence of pneumonitis suggests care when treating patients with significant underlying cardiopulmonary comorbidities.

A phase III clinical trial showed that mirvetuximab soravtansine achieved an objective remission rate of 42.3% in platinum‑resistant, FRα‑positive ovarian cancer, compared with 15.9% using chemotherapy, demonstrating its immense potential for ADC development. The present review summarizes the research progress on the use of ADCs in PROC as a monotherapy and combination therapy and considers the future development direction of ADCs in PROC.

MIRV did not seem to impair or improve patient quality of life compared with investigator's choice of chemotherapy. The similar quality-of-life outcomes in the two treatment groups, combined with the previously reported higher efficacy of MIRV compared with single-agent chemotherapy, support MIRV as new treatment option for FRα-positive platinum-resistant ovarian cancer.

Due to the very limited number of NAb-positive individuals, no conclusions could be drawn on the effect of NAb on efficacy. Both the validation tests and the data from the MIRV clinical studies demonstrated that these assays were suitable and reliable for the detection of MIRV ADAs and NAbs. These validated assays will continue to be used to monitor MIRV immunogenicity in future clinical trials.

Though less than in high-grade disease, a notable portion of low-grade tumors were FOLR1+, suggesting FOLR1 expression in LGSOC could be a viable target for this rare histology, particularly in the recurrent setting.

Introduction Mirvetuximab soravtansine-gynx (MIRV) is an antibody-drug conjugate that binds to folate receptor alpha and delivers a microtubule inhibitor payload...Median PFS did not significantly differ based on number of prior treatment lines (for 1-3 versus >3 lines, P = 0.3) or prior PARP inhibitor ( P = 0.9) or bevacizumab ( P = 0.4) use...Conclusion/Implications MIRV confers meaningful PFS benefit for a subset of individuals. Biomarkers of response and resistance are urgently needed to optimize patient selection for treatment.