To Study the Effect of Inavolisib in Combination With Fulvestrant in Participants With Breast Cancer

ConditionBreast Cancer
Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorHoffmann-La Roche

About this trial

The purpose of this study is to evaluate the efficacy and safety of inavolisib in combination with fulvestrant compared with inavolisib in combination with fulvestrant in participants with PIK3CA-mutated, HR-positive, HER2-negative locally advanced or metastatic breast cancer (LA/mBC) in the post-cyclin-dependent kinase inhibitor (CDKi) setting.

Eligibility criteria

Qualifiers

Documented ER +/ HER2- tumor according to American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) guidelines

Disease progression after or during treatment with a combination of CDK4/6i and endocrine therapy: <= 1 prior lines of systemic therapy in the locally advanced (recurrent or progressed) or metastatic setting

Measurable or evaluable disease per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1)

Participants for whom endocrine-based 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

Disqualifiers

Metaplastic breast cancer

Prior treatment with chemotherapy in the recurrent locally advanced/metastatic setting

Type 2 diabetes requiring ongoing systemic treatment at the time of study entry; or any history of Type 1 diabetes

Prior treatment with PI3K/Akt/mTOR inhibitors in the recurrent locally advanced/metastatic setting

Trial design

Treatments tested in this trial

  • Inavolisib
  • Fulvestrant

Treatment groups

80 Participants
are divided into 2 treatment groups

Sponsors and collaborators