Biomarker Testing and Treatment Patterns Among Patients With PIK3CA Mutation in Advanced Breast Cancer

NCT ID: NCT05982886

Last Updated: 2023-08-09

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

COMPLETED

Total Enrollment

1093 participants

Study Classification

OBSERVATIONAL

Study Start Date

2021-01-15

Study Completion Date

2021-04-01

Brief Summary

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This was a retrospective observational study of patients with advanced breast cancer (BC). This non-interventional study was conducted using discrete structured data and medical record abstraction, if needed, from patients treated at Texas Oncology, the designated research organization and a community oncology practice. The first date of a new diagnosis of advanced BC (de novo or progressed to advanced BC) defined the study index date. To allow for an adequate potential duration of follow-up (retrospectively observed) after the index date over which PIK3CA testing and treatment patterns was observed, a minimum follow-up opportunity of 6 months after the diagnosis of advanced BC at the time of data pull and/or abstraction was required.

Detailed Description

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Conditions

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Breast Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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PIK3CA positive: HR+ Her2-

No interventions assigned to this group

PIK3CA positive: HR- Her2-

No interventions assigned to this group

PIK3CA positive: HR- Her2+

No interventions assigned to this group

PIK3CA positive: HR+ Her2+

No interventions assigned to this group

PIK3CA negative

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Patients who met the following criteria were eligible for abstraction:
* Newly diagnosed advanced BC between 01 January 2015, and 30 June 2020
* Evaluated for a PIK3CA mutation and identified PIK3CA gene status
* No evidence of active other malignant neoplasms within 3 years (except nonmelanoma skin cancer or carcinoma in situ) prior to diagnosis of advanced BC
* At least 18 years of age at the time of first diagnosis of BC
* Patients may be alive or deceased at the time of abstraction
* Not ever enrolled in the following interventional clinical trials evaluating PI3K inhibitors:

* SOLAR-1 trial (NCT0243731) evaluating alpelisib (BYL719)
* BELLE-2 or BELLE-3 trial (NCT01610284, NCT01633060) evaluating buparlisib (BKM120)
* SANDPIPER trial (NCT02340221) evaluating taselisib (GDC-0032)

Exclusion Criteria

None
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Novartis Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Novartis Pharmaceuticals

Role: STUDY_DIRECTOR

Novartis Pharmaceuticals

Locations

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Novartis

East Hanover, New Jersey, United States

Site Status

Countries

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United States

Other Identifiers

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CBYL719A0US11

Identifier Type: -

Identifier Source: org_study_id

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