Company: ARVN
Filing Date: 2025-11-05
Form Type: 10-Q
Source: 0001628280-25-049527
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Company: ARVINAS, INC.
Filing Date: 2025-11-05
Form: 10-Q
Item: Part I, Item 8
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We believe that, based on these strong data from VERITAC-2, vepdegestrant has the potential to be a best-in-class monotherapy treatment for patients in the second-line ESR1m setting. 

As part of our global collaboration with Pfizer, we and Pfizer presented patient reported outcomes, or PRO, data from the VERITAC-2 clinical trial evaluating vepdegestrant versus fulvestrant for previously treated patients with ESR1 mutated- ER+/HER2- advanced breast cancer in the fourth quarter of 2025 at the European Society for Medical Oncology 2025 Congress. In the VERITAC-2 clinical trial, in patients with ESR1-mutated disease, vepdegestrant demonstrated a reduced risk of deterioration compared to fulvestrant which was statistically significant in several PRO domains including overall health status, pain severity, and functioning (including role, cognitive, emotional, and social functioning), and vepdegestrant consistently showed reduced risk of deterioration versus fulvestrant across all PRO domains. These PRO data from the VERITAC-2 clinical trial support the clinical benefit of vepdegestrant in patients with ESR1-mutated, ER+/HER2- advanced or metastatic breast cancer previously treated with endocrine-based therapy.

Other Clinical Trials and Information

In the second quarter of 2025, we announced that we and Pfizer removed two planned Phase 3 combination trials of vepdegestrant from the agreed-upon joint development plan: a first-line Phase 3 combination trial with Pfizer’s novel investigational CDK4 inhibitor, atirmociclib, and a second-line Phase 3 combination trial with a CDK4/6 inhibitor.

Additionally, in the second quarter of 2025, Pfizer added a vepdegestrant combination cohort to its ongoing Phase 1 clinical trial evaluating Pfizer’s investigational KAT6 inhibitor in combination with endocrine therapies following CDK4/6 inhibitor treatment. This clinical trial is being operationalized and funded solely by Pfizer. 

As part of our global collaboration with Pfizer, we and Pfizer presented results of the TACTIVE-N Phase 2 clinical trial which evaluated neoadjuvant vepdegestrant in postmenopausal women with ER+/HER2– localized breast cancer in the fourth quarter of 2025 at the European Society for Medical Oncology 2025 Congress. The results presented showed that neoadjuvant vepdegestrant demonstrated biological and clinical activity in this treatment