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Association details:
| Biomarker: | ER positive + ESR1 mutation |
|---|---|
| Cancer: | HER2 Negative Breast Cancer |
| Drug: | vepdegestrant (ARV-471) (Ubiquitin pathway modulator, Estrogen receptor alpha degrader) |
| Direction: | Sensitive |
Evidence:
Source:
Title:
ARV-471, a PROTAC® estrogen receptor (ER) degrader in advanced ER+/human epidermal growth factor receptor 2 (HER2)- breast cancer: phase 2 expansion (VERITAC) of a phase 1/2 study
Published date:
03/16/2023
Excerpt:
In the phase 2 VERITAC expansion cohorts of CDK4/6 inhibitor–pretreated pts with ER+/HER2- advanced breast cancer, ARV-471 monotherapy showed evidence of clinical activity based on CBR, which was further enhanced in the subgroup with ESR1 mutations.
Trial ID:
Source:
Title:
ARV-471, a PROTAC® estrogen receptor (ER) degrader in advanced ER-positive/human epidermal growth factor receptor 2 (HER2)-negative breast cancer: phase 2 expansion (VERITAC) of a phase 1/2 study
Published date:
11/22/2022
Excerpt:
In VERITAC, ARV-471 monotherapy was administered at doses of 200 mg once daily (QD) or 500 mg QD to patients with ER+/HER2- locally advanced/metastatic breast cancer….CBR was 37.1% (95% CI: 21–55) in 35 evaluable patients treated at 200 mg QD and 38.9% (95% CI: 23– 57) in 36 evaluable patients treated at 500 mg QD. CBR in evaluable patients with mutant ESR1 in the 200 mg QD (n=19) and 500 mg QD (n=22) cohorts was 47.4% (95% CI: 24–71) and 54.5% (95% CI: 32–76), respectively....In the phase 2 VERITAC expansion cohorts of patients with ER+/HER2- locally advanced/metastatic breast cancer and prior CDK4/6 inhibitor treatment, ARV-471 monotherapy showed evidence of clinical activity based on CBR, which was further enhanced in the subgroup with ESR1 mutations.
