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Vepdegestrant (ARV-471) Estrogen Receptor PROTAC Degrader

Cat.No.S9862

Vepdegestrant (ARV471) is an orally bioavailable estrogen receptor-targeting (ER-targeting) PROTAC for the treatment of patients with locally advanced or metastatic ER+/HER2- breast cancer.
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Quality Control

Batch: S986201 DMSO]100 mg/mL]false]Water]Insoluble]false]Ethanol]Insoluble]false Purity: 99.75%
99.75

Solubility

In vitro
Batch:

DMSO : 100 mg/mL (138.14 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight
Dilution Calculator Molecular Weight Calculator

In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg
g
μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO
%
% Tween 80
% ddH2O
% DMSO
+
%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight 723.9 Formula

C45H49N5O4

Storage (From the date of receipt) 3 years -20°C powder
CAS No. 2229711-68-4 -- Storage of Stock Solutions

Read more about storage stability stock solution CAS number

Mechanism of Action

Targets/IC50/Ki
ER
References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-05-06)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT01042379 RECRUITING
Breast Neoplasms; Breast Cancer; Breast Tumors; Angiosarcoma; TNBC - Triple-Negative Breast Cancer; HER2-positive Breast Cancer; HER2-negative Breast Cancer; Hormone Receptor Positive Tumor; Hormone Receptor Negative Tumor; Early-stage Breast Cancer; Locally Advanced Breast Cancer
QuantumLeap Healthcare Collaborative
2010-03-01 PHASE2
NCT04606446 RECRUITING
Locally Advanced or Metastatic ER+ HER2- Breast Cancer; Locally Advanced or Metastatic Castration-resistant Prostate Cancer; Locally Advanced or Metastatic Non-small Cell Lung Cancer
Pfizer
2020-11-16 PHASE2
NCT05548127 ACTIVE_NOT_RECRUITING
Breast Cancer
Pfizer
2023-02-23 PHASE1; PHASE2
NCT06125522 ACTIVE_NOT_RECRUITING
Breast Cancer
Pfizer
2024-01-10 PHASE1; PHASE2
NCT05909397 ACTIVE_NOT_RECRUITING
Breast Cancer
Pfizer
2023-08-09 PHASE3
NCT05573555 ACTIVE_NOT_RECRUITING
Breast Cancer
Pfizer
2023-03-01 PHASE1; PHASE2

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