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NCT04802759PHASE1, PHASE2RECRUITING

A Study Evaluating the Efficacy and Safety of Multiple Treatment Combinations in Participants With Breast Cancer

A Phase Ib/II, Open-Label, Multicenter, Randomized Umbrella Study Evaluating the Efficacy and Safety of Multiple Treatment Combinations in Patients With Breast Cancer (MORPHEUS-BREAST CANCER)

Sponsor: Hoffmann-La Roche

No open prediction endpoints

Endpoints are classified and published by ProgramSignal analysts.

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Key Facts

Study type
INTERVENTIONAL
Conditions
Inoperable, Locally Advanced or Metastatic, ER-positive Breast Cancer
Interventions
Giredestrant, Abemaciclib, Ipatasertib, Inavolisib
Enrollment
316 participants
Primary completion
May 2029
Study completion
May 2029
First posted
Mar 2021
Last updated
May 2026

Primary Endpoints (CT.gov)

Percentage of Participants with Objective Response, Defined as a Complete or Partial Response, as Determined by the Investigator According to Response Evaluation Criteria in Solid Tumors, version 1.1 (RECIST v1.1)

Time frame: From Baseline until disease progression (up to 6 years)

Number of Participants with Adverse Events, Severity Determined According to National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0 (NCI CTCAE v5.0)

Time frame: From Baseline until 30 days after the last dose of study drug (up to 6 years)

Secondary Endpoints

Progression-Free Survival, as Determined by the Investigator According to RECIST v1.1

Disease Control Rate, Defined as the Percentage of Participants with Stable Disease for ≥12 Weeks or a Complete or Partial Response, as Determined by the Investigator According to RECIST v1.1

Clinical Benefit Rate, Defined as the Percentage of Participants with Stable Disease for ≥24 Weeks or with Confirmed Complete or Partial Response, as Determined by the Investigator According to RECIST v1.1

Eligibility Criteria

Inclusion Criteria: Inclusion Criteria for Cohort 1 (Stage 1 \[and Stage 2, only where indicated\]): * Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 * Documented estrogen receptor-positive (ER+) tumor * Patients for whom endocrine therapy is recommended and treatment with cytotoxic chemotherapy is not indicated at time of entry into the study, as per national or local treatment guidelines * Radiologic/objective evidence of recurrence or progression after the most recent systemic therapy for breast cancer * Disease progression during or after first- or second-line hormonal therapy for locally advanced or metastatic disease (note: at least one line of therapy must have contained a CDK4/6i administered for a minimum of 8 weeks prior to disease progression.) * Postmenopausal status for women * Life expectancy ≥3 months * Availability of a representative tumor specimen that is suitable for biomarker evaluation via central testing * Prior fulvestrant therapy is all

Read full criteria on CT.gov →

✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov