A Study Evaluating the Safety and Efficacy of Venetoclax in Combination With Trastuzumab Emtansine in Patients With Previously Treated HER2-Positive Locally Advanced or Metastatic Breast Cancer

NCT04298918 · Status: TERMINATED · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 1

Last updated 2021-11-08

Study results available
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Summary

This two-part study is composed of two stages: a Phase Ib stage consisting of a dose-escalation phase and an expansion phase; and a Phase II, randomized, placebo-controlled, double-blind, multicenter stage. The Phase Ib stage will assess the safety and tolerability, determine the maximum tolerated dose (MTD) and the recommended Phase II dose (RP2D), and evaluate the preliminary efficacy of trastuzumab emtansine in combination with venetoclax in participants with previously treated human epidermal growth factor receptor 2 (HER2) positive unresectable locally advanced breast cancer (LABC) or metastatic breast cancer (MBC). Additional patients may be enrolled in an expansion phase to evaluate the safety, tolerability, and efficacy of trastuzumab emtansine in combination with venetoclax at RP2D in patients with previously treated HER2-positive LABC or MBC who have previously received either trastuzumab emtansine or trastuzumab deruxtecan (DS-8201a). The Phase II randomized stage will evaluate the safety, efficacy, tolerability, and pharmacokinetics of trastuzumab emtansine in combination with venetoclax at RP2D compared with trastuzumab emtansine plus placebo in participants with previously treated HER2-positive LABC or MBC who have not received prior trastuzumab emtansine therapy, either alone or in combination with other anti-cancer therapies.

Conditions

Interventions

DRUG

Placebo

Participants will receive oral placebo in combination with trastuzumab emtansine.

DRUG

Venetoclax

Participants will receive oral venetoclax.

DRUG

Trastuzumab emtansine

Participants will receive intravenous (IV) trastuzumab emtansine.

Sponsors & Collaborators

Principal Investigators

  • Clinical Trials · Hoffmann-La Roche

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-09-23
Primary Completion
2021-02-04
Completion
2021-02-04
FDA Drug
Yes

Countries

  • Australia
  • South Korea

Study Locations

More Related Trials

Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04298918 on ClinicalTrials.gov