Last updated on September 2020

Phase 2 Study of SAR439859 Versus Physician's Choice in Locally Advanced or Metastatic ER-positive Breast Cancer (AMEERA-3)


Brief description of study

Primary Objective:

To determine whether SAR439859 per os improves progression free survival (PFS) when compared with a endocrine monotherapy of the choice of the physician, in participants with metastatic or locally advanced breast cancer.

Secondary Objectives:

  • To compare the overall survival in the 2 treatment arms
  • To assess the objective response rate in the 2 treatment arms.
  • To evaluate the disease control rate in the 2 treatment arms.
  • To evaluate the clinical benefit rate in the 2 treatment arms.
  • To evaluate the duration of response in the 2 treatment arms.
  • To evaluate the PFS according to the estrogen receptor 1 gene (ESR1) mutation status in the 2 treatment arms.
  • To evaluate the pharmacokinetics of SAR439859 as single agent.
  • To evaluate health related quality of life in the 2 treatment arms.
  • To compare the overall safety profile in the 2 treatment arms.

Detailed Study Description

The duration of the study for an individual participant will include a period to assess eligibility (screening period) of up to 4 weeks (28 days), a treatment period of at least 1 cycle (28 days of study treatment), and an end of treatment (EOT) visit at least 30 days (or until the participant receive another anticancer therapy, whichever is earlier) following the last administration of study treatment. Study treatment may continue until precluded by unacceptable toxicity, disease progression, death or upon participant's request.

An extension of recruitment for Chinese participants is planned in this study: After completion of randomization in the global part of the study, randomization will continue in China until approximately 90 Chinese participants are randomized.

Clinical Study Identifier: NCT04059484

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Investigational Site Number 8400009

Jamaica, NY United States
1.53miles
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Recruitment Status: Open


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