A Study to Evaluate the Effectiveness and Safety of Inavolisib in Participants With Endocrine-resistant, PIK3CA-mutated, Hormone Receptor-positive, HER2-negative Locally Advanced or Metastatic Breast Cancer

NCT ID: NCT07347600

Last Updated: 2026-01-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

500 participants

Study Classification

OBSERVATIONAL

Study Start Date

2026-01-21

Study Completion Date

2029-09-09

Brief Summary

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The main purpose of this study is to evaluate the effectiveness of inavolisib based regimen in participants with endocrine-resistant, phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha gene (PIK3CA)-mutated, hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) locally advanced or metastatic breast cancer (LA/mBC), following on or after completing adjuvant endocrine therapy in routine clinical practice in China.

Detailed Description

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Conditions

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Locally Advanced Breast Cancer Metastatic Breast Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Inavolisib

Participants with endocrine-resistant, PIK3CA-mutated, HR+, HER2-, LA/mBC, following on or after completing adjuvant endocrine therapy will be observed for effectiveness and safety of inavolisib.

Inavolisib

Intervention Type DRUG

Inavolisib will be administered at the discretion of the physician in accordance with local clinical practice and local labeling.

Palbociclib

Intervention Type DRUG

Palbociclib will be administered at the discretion of the physician in accordance with local clinical practice and local labeling.

Fulvestrant

Intervention Type DRUG

Fulvestrant will be administered at the discretion of the physician in accordance with local clinical practice and local labeling.

Interventions

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Inavolisib

Inavolisib will be administered at the discretion of the physician in accordance with local clinical practice and local labeling.

Intervention Type DRUG

Palbociclib

Palbociclib will be administered at the discretion of the physician in accordance with local clinical practice and local labeling.

Intervention Type DRUG

Fulvestrant

Fulvestrant will be administered at the discretion of the physician in accordance with local clinical practice and local labeling.

Intervention Type DRUG

Other Intervention Names

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GDC-0077

Eligibility Criteria

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Inclusion Criteria

* Participants must be diagnosed with endocrine-resistant, PIK3CA-mutated, HR+/HER2- LA/mBC, following recurrence on or after completing adjuvant endocrine therapy
* Participants must receive the treatment of inavolisib for the first time
* PIK3CA mutation status should be detected by a National Medical Products Administration (NMPA)-approved or validated assay \[Polymerase Chain Reaction (PCR) or Next Generation Sequencing (NGS)\] by testing of blood or tumor tissue prior to the initiation of inavolisib

Exclusion Criteria

* Participants for which the treatment with inavolisib is not indicated per prescribing information. If the participant starts palbociclib and fulvestrant first, and starts inavolisib after getting a PIK3CA mutation-positive test result later, the palbociclib and fulvestrant will not be deemed as a different line of therapy. However, the medical order of PIK3CA mutation test must be made before or at the same time with the prescription of palbociclib and fulvestrant
* Participants not receiving treatment for LA/mBC with inavolisib according to standard of care (SOC) and in line with the current summary of product characteristics (SPC)/local labeling
* At the investigator's discretion, any reason that makes the participant hard to follow up or unsuitable to participate in the study
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hoffmann-La Roche

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Clinical Trials

Role: STUDY_DIRECTOR

Hoffmann-La Roche

Locations

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Fudan University Shanghai Cancer Center

Shanghai, , China

Site Status RECRUITING

Countries

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China

Central Contacts

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Reference Study ID Number: ML46361 https://forpatients.roche.com/

Role: CONTACT

888-662-6728

Other Identifiers

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ML46361

Identifier Type: -

Identifier Source: org_study_id

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