A Descriptive Study of Baseline Characteristics, Clinical Outcomes, and Treatment Patterns of HR+/HER2- Advanced or Metastatic Breast Cancer Patients Treated With Alpelisib Plus Fulvestrant Who Have Received Fulvestrant in Any Prior Line of Therapy

Novartis

Status: Completed

Conditions: HR+/HER2- Advanced or Metastatic Breast Cancer

Study type: Observational

Funder types: Industry

Identifiers

NCT05853432

CBYL719C2009

Details and patient eligibility

About

This was a non-interventional, retrospective cohort study of patients with HR+/HER2- aBC treated with alpelisib (ALP) plus fulvestrant (FUL) who have received fulvestrant in any prior line of therapy (LoT). This study utilized de-identified individual patient data from the United States (US) ConcertAI Patient360 Breast Cancer database, sourced from electronic health records (EHR) (i.e., secondary use of data). Patients were indexed at their start date of the earliest alpelisib plus fulvestrant regimen and followed until their death date or last confirmed activity date in the absence of an observed death.

Enrollment: 157 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Had a curated record for advanced or metastatic breast cancer diagnosis.
• Note: Diagnosis of a/mBC is based on a curated record of M stage=M1, Stage 4/4a/4b, presence of metastatic tumor, Stage 3b/3c or presence of secondary neoplasm.
• Had patient activity documented in ConcertAI Patient 360 Breast Cancer database (defined as a record of a clinic visit, medication administration, vital test, or lab test) or death within 90 days after the advanced or metastatic breast cancer diagnosis date.
• Had documented receipt of treatment with alpelisib plus fulvestrant on or after the advanced or metastatic diagnosis date.
• Had documented receipt of treatment with fulvestrant before the index date (start date of the earliest alpelisib plus fulvestrant regimen). This included (neo) adjuvant therapies.
• Age ≥18 years on the index date.

Exclusion criteria

• Had documented hormone receptor-negative (defined as both estrogen receptor-negative and progesterone receptor-negative) or HER2-positive status any time prior to index date (but prioritizing results closest to index date, if there were conflicting results).
• Patient had a clinical trial registration date (i.e., participated in a clinical trial) on or before the index date.
• Patients with "negative" PIK3CA test before index date (in case of multiple tests, the one closer to the index date was used).