scholarly journals Molecular alterations and poziotinib efficacy, a pan‐HER inhibitor, in human epidermal growth factor receptor 2 (HER2)‐positive breast cancers: Combined exploratory biomarker analysis from a phase II clinical trial of poziotinib for refractory HER2‐positive breast cancer patients

2019 ◽  
Vol 145 (6) ◽  
pp. 1669-1678 ◽  
Author(s):  
Ji‐Yeon Kim ◽  
Eunjin Lee ◽  
Kyunghee Park ◽  
Hae Hyun Jung ◽  
Woong‐Yang Park ◽  
...  
The Physician ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. c12
Author(s):  
Shantal Edirappuli ◽  
Emma Bedowes

Overexpression of HER2 (human epidermal growth factor receptor 2) occurs in around 20% of breast cancers. This particular subtype is known to be very aggressive and had the worst prognosis prior to the introduction of targeted therapy. The development of anti-HER2 therapies such as trastuzumab and pertuzumab has shown to dramatically improve the prognosis of patients with HER2-positive breast cancer.


2021 ◽  
Author(s):  
Mengdi Chen ◽  
Jiayi Wu ◽  
Deyue Liu ◽  
Weilin Chen ◽  
Weiguo Chen ◽  
...  

Abstract Background: Targeted therapies have largely improved prognosis of human epidermal growth factor receptor 2 (HER2)-positive breast cancer. Yet, disease can still progress rapidly for some patients in the first two years after diagnosis. Our study aimed to establish a nomogram model to predict the 2-year breast cancer-specific survival (BCSS) in early HER2-positive breast cancer patients. Methods: A total of 32,481 HER2-positive patients derived from Surveillance, Epidemiology, and End Results (SEER) database were included in the construction of nomogram. Concordance index (C-index) and calibration curve were used to evaluate the discrimination ability and predictive accuracy. We tested the model in 804 patients from Shanghai Jiao Tong University Breast Cancer Data Base (SJTU-BCDB). Results: Age, estrogen receptor (ER) status, progesterone receptor (PR) status, histologic type, T stage and N stage were selected to construct the nomogram according to multivariable analysis. The 2-year BCSS rate was 95% and 60% for patients at low risk (<8 points) and high risk (>13 points) respectively. The C-index of model derived from SEER database is 0.81 (95%CI 0.79-0.83). Sensitivity analysis was performed in patients after breast surgeries with the C-index of 0.81 (95%CI, 0.79-0.83). Validation in 804 patients from SJTU-BCDB showed respective C-index of 0.77 (95%CI, 0.62-0.92) in total population, 0.67 (95%CI 0.44-0.90) and 0.90 (95%CI 0.81-0.90) in patients who received anti-HER2 therapy or not. Discussion: The novel nomogram can predict the 2-year survival outcome in HER2-positive patients independent of receiving anti-HER2 therapy or not and allow clinicians to adjust therapeutic strategies for patients with higher risk.


2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Bryan E. White ◽  
Molly K. White ◽  
Het Adhvaryu ◽  
Issam Makhoul ◽  
Zeid A. Nima ◽  
...  

Abstract Breast cancer is a major cause of cancer-associated deaths in the United States. It was estimated that 12% of women in the U.S. will develop invasive breast cancer in their lifetime. The human epidermal growth factor receptor (HER2/neu) is a growth-promoting protein that is overexpressed in 15–20% of breast cancers (HER2-positive breast cancer). HER2-positive breast cancer generally grows and spreads more quickly than other breast cancers, but it can be targeted therapeutically. Targeting drugs have been developed with a specific design to stop the growth and even the spread of cancer. These drugs include trastuzumab (Herceptin), pertuzumab (Perjeta), ado-trastuzumab emtansine (Kadcyla, or TDM-1), fam-trastuzumab deruxtecan, lapatinib, neratinib and tucatinib. However, the need for better targeted therapy and efficacy still exists. Nanotechnology could have major advantages in terms of detection, targeting, drug delivery, and destruction of cancer cells and tumors. Although a great deal of progress has been accomplished major challenges still need to be addressed. In this review, we examine the major areas of research in the area of nanotechnology and HER2-positive breast cancer.


2017 ◽  
Vol 5 (3) ◽  
pp. 36-40
Author(s):  
Raúl Márquez Vázquez ◽  
Antonio González Martín ◽  
Javier Cortés

Approximately 20% of breast cancer patients harbor tumors that overexpress human epidermal growth factor receptor 2 (HER2), which represents an adverse prognostic factor. The therapeutic landscape for this type of breast cancer has been transformed by the approval of anti-HER2 agents for adjuvant and neoadjuvant settings. Despite that, some of these patients will eventually relapse. Dual HER2 blockade has been successfully tried in early and advanced breast cancer. Here we report the case of an early HER2-positive breast cancer patient treated with trastuzumab, pertuzumab, and chemotherapy. The recently released final results of the much anticipated APHINITY trial confirm the outcome achieved in this patient.


2014 ◽  
Vol 38 (6) ◽  
Author(s):  
Ina Mathilde Kjær ◽  
Ivan Brandslund

AbstractIn 15%–20% of breast cancers, human epidermal growth factor receptor 2 (HER2) is overexpressed. Part of HER2 is shed into the circulation, where it can be measured in serum as S-HER2. Although many studies have tried to establish the clinical usefulness of S-HER2, S-HER2 has not yet found its place in clinical practice because large prospective trials have been missing. We present our own recent work to provide a suggestion of the clinical use of S-HER2. A total of 540 patients were followed up after primary surgery. The sensitivity of detection of recurrence in tissue HER2-positive patients was 69% and the positive predictive value was 47% using a cutoff value of 15 μg/L. Further, we have shown that the S-HER2 value reflects the effect of targeted treatment with trastuzumab. An increase in S-HER2 was correlated with progression of disease in 40 out of 44 clinical courses, whereas a decrease in S-HER2 was correlated to no progression or regression in 20 out of 21 courses. We propose to include S-HER2 in the clinical follow-up after primary surgery of tissue HER2-positive breast cancer patients to detect recurrence. We suggest a prospective randomized trial on the individualized, tailored therapy of these patients using S-HER2 as an indicator of the need to investigate recurrence.


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