1
|
Sperduto PW, Mesko S, Li J, Cagney D, Aizer A, Lin NU, Nesbit E, Kruser TJ, Chan J, Braunstein S, Lee J, Kirkpatrick JP, Breen W, Brown PD, Shi D, Shih HA, Soliman H, Sahgal A, Shanley R, Sperduto W, Lou E, Everett A, Boggs DH, Masucci L, Roberge D, Remick J, Plichta K, Buatti JM, Jain S, Gaspar LE, Wu CC, Wang TJC, Bryant J, Chuong M, Yu J, Chiang V, Nakano T, Aoyama H, Mehta MP. Estrogen/progesterone receptor and HER2 discordance between primary tumor and brain metastases in breast cancer and its effect on treatment and survival. Neuro Oncol 2021; 22:1359-1367. [PMID: 32034917 PMCID: PMC7523450 DOI: 10.1093/neuonc/noaa025] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Breast cancer treatment is based on estrogen receptors (ERs), progesterone receptors (PRs), and human epidermal growth factor receptor 2 (HER2). At the time of metastasis, receptor status can be discordant from that at initial diagnosis. The purpose of this study was to determine the incidence of discordance and its effect on survival and subsequent treatment in patients with breast cancer brain metastases (BCBM). METHODS A retrospective database of 316 patients who underwent craniotomy for BCBM between 2006 and 2017 was created. Discordance was considered present if the ER, PR, or HER2 status differed between the primary tumor and the BCBM. RESULTS The overall receptor discordance rate was 132/316 (42%), and the subtype discordance rate was 100/316 (32%). Hormone receptors (HR, either ER or PR) were gained in 40/160 (25%) patients with HR-negative primary tumors. HER2 was gained in 22/173 (13%) patients with HER2-negative primary tumors. Subsequent treatment was not adjusted for most patients who gained receptors-nonetheless, median survival (MS) improved but did not reach statistical significance (HR, 17-28 mo, P = 0.12; HER2, 15-19 mo, P = 0.39). MS for patients who lost receptors was worse (HR, 27-18 mo, P = 0.02; HER2, 30-18 mo, P = 0.08). CONCLUSIONS Receptor discordance between primary tumor and BCBM is common, adversely affects survival if receptors are lost, and represents a missed opportunity for use of effective treatments if receptors are gained. Receptor analysis of BCBM is indicated when clinically appropriate. Treatment should be adjusted accordingly. KEY POINTS 1. Receptor discordance alters subtype in 32% of BCBM patients.2. The frequency of receptor gain for HR and HER2 was 25% and 13%, respectively.3. If receptors are lost, survival suffers. If receptors are gained, consider targeted treatment.
Collapse
Affiliation(s)
- Paul W Sperduto
- Minneapolis Radiation Oncology and University of Minnesota Gamma Knife Center, Minneapolis, Minnesota, USA
| | - Shane Mesko
- The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jing Li
- The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Daniel Cagney
- Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Ayal Aizer
- Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Nancy U Lin
- Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Eric Nesbit
- Northwestern University, Chicago, Illinois, USA
| | | | - Jason Chan
- University of California San Francisco, San Francisco, California, USA
| | - Steve Braunstein
- University of California San Francisco, San Francisco, California, USA
| | - Jessica Lee
- Duke University, Durham, North Carolina, USA
| | | | | | | | - Diana Shi
- Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Helen A Shih
- Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Hany Soliman
- Sunnybrook Odette Cancer Centre University of Toronto, Toronto, Canada
| | - Arjun Sahgal
- Sunnybrook Odette Cancer Centre University of Toronto, Toronto, Canada
| | - Ryan Shanley
- University of Minnesota, Minneapolis, Minnesota, USA
| | | | - Emil Lou
- University of Minnesota, Minneapolis, Minnesota, USA
| | - Ashlyn Everett
- University of Alabama Birmingham, Birmingham, Alabama, USA
| | | | - Laura Masucci
- Centre Hospitalier de l' Université de Montréal, Montreal, Canada
| | - David Roberge
- Centre Hospitalier de l' Université de Montréal, Montreal, Canada
| | - Jill Remick
- University of Maryland, Baltimore, Maryland, USA
| | | | | | - Supriya Jain
- University of Colorado Denver, Denver, Colorado, USA
| | | | | | | | | | | | - James Yu
- Yale University, New Haven, Connecticut, USA
| | | | | | | | | |
Collapse
|