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A Multinational Study to Evaluate the Safety and Activity of Enzalutamide in Women Whose Breast Cancer Expresses the Androgen Receptor but Does Not Express Estrogen or Progesterone Receptors, and is Not Amplified for the Epidermal Growth Factor Receptor, HER2

A Phase 2, Single-Arm, Open-Label, Multicenter Study of the Clinical Activity and Safety of Enzalutamide in Patients With Advanced, Androgen Receptor-Positive, Triple-Negative Breast Cancer

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2013-000698-57-GB
Enrollment
95
Registered
2013-05-16
Start date
2013-09-01
Completion date
Unknown
Last updated
2020-02-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer MedDRA version: 20.0 Level: PT Classification code 10006187 Term: Breast cancer System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Trade Name: Xtandi® Product Name: Enzalutamide Pharmaceutical Form: Capsule INN or Proposed INN: ENZALUTAMIDE CAS Number: 915087-33-1

Sponsors

Medivation, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: • Advanced AR+ (any nuclear AR staining by IHC) TNBC, where advanced disease is defined as metastatic disease or locally advanced disease that is not amenable to surgery or radiotherapy with curative intent; • Availability of a tumor specimen that enabled the definitive diagnosis of breast cancer; • Either measurable disease or bone-only nonmeasurable disease; • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 95 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: • Current or previously treated brain metastasis or active leptomeningeal disease; head imaging is required during screening; • Current hormone replacement therapy; • Abnormal hematology, liver function tests and creatinine laboratory values at screening; • History of seizure or any condition that may predispose to seizure; • History of loss of consciousness or transient ischemic attack within past 12 months; • An active gastrointestinal disorder affecting absorption (e.g., gastrectomy, active peptic ulcer disease; uncontrolled celiac disease); • Treatment with any approved or investigational agent that blocks androgen synthesis or targets the AR (e.g., abiraterone acetate, ARN-509, bicalutamide, enzalutamide, ODM-201, TAK-448, TAK-683, TAK-700); patients who received treatment for < 28 days or placebo on an investigational study are acceptable; • Hypersensitivity reaction to the active pharmaceutical ingredient or any of the capsule components, including Labrasol, butylated hydroxyanisole, and butylated hydroxytoluene

Design outcomes

Primary

MeasureTime frame
Main Objective: The primary objective is to determine clinical benefit rate in patients with AR+ triple-negative breast cancer (TNBC).; Secondary Objective: To determine additional measures of clinical benefit including response rate, duration of response and PFS To assess the safety, tolerability and PK of enzalutamide and its active metabolite ;Primary end point(s): Clinical benefit rate, defined as the proportion of evaluable patients with a best response of CR, PR, or SD > 16 weeks;Timepoint(s) of evaluation of this end point: Time from randomization to disease progression

Secondary

MeasureTime frame
Secondary end point(s): Additional measures include clinical benefit at >24 weeks, best objective response rate, duration of response and PFS, will be evaluated;Timepoint(s) of evaluation of this end point: Time from randomization to disease progression

Countries

Belgium, Canada, Ireland, Italy, Spain, United Kingdom, United States

Contacts

Public ContactClinical Trial Information Desk

Medivation, Inc.

infomdv3100-11trial@medivation.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026