Clinical outcomes after palbociclib with or without endocrine therapy in postmenopausal women with hormone receptor positive and HER2-negative metastatic breast cancer enrolled in the TREnd trial.

Abstract:

:Currently, there is limited data regarding the effectiveness of standard subsequent line therapies such as endocrine therapy, chemotherapy, or targeted agents after progression on CDK4/6 inhibitor-based regimens. This paper describes time-to-treatment failure beyond progression on palbociclib or palbociclib+endocrine therapy in patients enrolled in the phase II, multicenter TREnd trial. Our results indicate that there is limited benefit from post-palbociclib treatment, regardless of the type of therapy received. A small population of long responders were identified who demonstrated ongoing benefit from a subsequent line of endocrine therapy after progression to palbociclib-based regimens. A translational research program is ongoing on this population of outliers.

journal_name

Breast Cancer Res

authors

Rossi L,Biagioni C,McCartney A,Migliaccio I,Curigliano G,Sanna G,Moretti E,Minisini AM,Cinieri S,Tondini C,Arpino G,Bernardo A,Martignetti A,Risi E,Pestrin M,Boni L,Benelli M,Biganzoli L,Di Leo A,Malorni L

doi

10.1186/s13058-019-1149-5

subject

Has Abstract

pub_date

2019-05-29 00:00:00

pages

71

issue

1

eissn

1465-5411

issn

1465-542X

pii

10.1186/s13058-019-1149-5

journal_volume

21

pub_type

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