Characteristics and Real-world Use of Palbociclib and Other CDK4/6is in Naive Patients in Australia: a Retrospective Analysis (ROSIE)
Overview
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Pfizer
- Enrollment
- 1,128
- Locations
- 1
- Primary Endpoint
- Demographic characteristic of participants (CDK4/6i cohort): year of birth
Overview
Brief Summary
The purpose of this study is to learn about how a class of medicines called CDK4/6 inhibitors, are used for the treatment of breast cancer in patients in Australia. The study looks at how the CDK4/6 inhibitor class of drugs are used for treating breast cancer that is advanced or metastatic (has spread to other parts of the body).
This study does not include patients. Instead, this study looks at already available data to describe characteristics (like age and sex) of patients who have already taken these medicines.
This study will focus on one of these medicines called palbociclib and will look at the data to learn what amounts of the study medicine (palbociclib) patients receive, and how long patients take it for in the real-world in Australia. This study will also learn what other anti-cancer medicines patients receive, including chemotherapy. Chemotherapy is the treatment that uses medicines to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Retrospective
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •18 years or older when first received CDK4/6i breast cancer treatment
- •Patient who has received CDK4/6i during study period
Exclusion Criteria
- •There are no exclusion criteria for this study
Outcomes
Primary Outcomes
Demographic characteristic of participants (CDK4/6i cohort): year of birth
Time Frame: At index date; index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023
Demographic characteristic of participants (CDK4/6i cohort): sex
Time Frame: At index date; index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023
Demographic characteristic of participants (CDK4/6i cohort): comorbidities
Time Frame: Within 12 months prior to index date. Index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023
Demographic characteristic of participants (palbociclib cohort): year of Birth
Time Frame: At index date; index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023
Demographic characteristic of participants (palbociclib cohort): comorbidities
Time Frame: Within 12 months prior to index date. Index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023
Demographic characteristic of participants (palbociclib cohort): sex
Time Frame: At index date; index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023
Proportion of patients receiving palbociclib in combination with aromatase inhibitors or fulvestrant
Time Frame: At index date; Index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023
Proportion of patients receiving other cancer treatment regimens
Time Frame: At any time from 2004; Within 12 months prior to index date; Within 180 from palbociclib discontinuation until data cut-off, Dec 2023
Secondary Outcomes
- Treatment continuation rate for palbociclib(At 12 and 24 months from index date until Dec 2023. Index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023)
- Percentage of participants with modified doses of palbociclib(First dose modification, from index date until Dec 2023. Index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023)
- Median Time to Chemotherapy Initiation from Index(From index date until Dec 2023. Index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023)
- Number of comorbidities at initiation of different palbociclib formulations(Within 12 months prior to index date. Index date will be defined as the date of dispensation of either any CDK4/6i or palbociclib in the CDK4/6i naive cohort, until Dec 2023)