PGR negative

This study is the first to document a significant association between long-term exposure to ambient PM2.5 and breast cancer incidence through meta-analysis. Air pollution has a pronounced impact on postmenopausal breast cancer, and the strength of the association between specific air pollutants and breast cancer incidence varies across regions. These findings suggest that long-term exposure to NO2 and PM2.5 may increase the incidence of breast cancer.

P3, N=254, Active, not recruiting, Sichuan Kelun Pharmaceutical Research Institute Co., Ltd. | Trial completion date: Dec 2024 --> Mar 2025

P2, N=21, Active, not recruiting, University of Wisconsin, Madison | Recruiting --> Active, not recruiting

P2, N=139, Terminated, Jules Bordet Institute | N=1065 --> 139 | Trial completion date: Mar 2029 --> Nov 2024 | Suspended --> Terminated | Trial primary completion date: Jun 2027 --> Nov 2024; Serious concerns on the slow recruitment of the study that impacts the robustness of the scientific rationale and the study financial provision. It aims to assess carefully the situation and to evaluate the potential solutions to overcome the issues.

These results suggest that the suppression of FOXO3a and ERα led to the increased expression of TGF-α, EGFR, and HER2 and subsequent cell proliferation in Ful-R. This study highlights the potential development of therapeutic drugs targeting FOXO3a for the treatment of HER2-positive, estrogen, and progesterone receptor-negative her2-type proliferative breast cancers.

P=N/A, N=151, Completed, Institut Claudius Regaud | Active, not recruiting --> Completed

P2, N=9, Terminated, Chipscreen Biosciences, Ltd. | N=38 --> 9 | Recruiting --> Terminated; During the enrollment period of this project, due to the increasing proportion of patients receiving capecitabine adjuvant therapy and the large number of trials competing for the same number of lines in various centers

P1/2, N=26, Completed, Sellas Life Sciences Group | Active, not recruiting --> Completed | N=90 --> 26

P1, N=45, Recruiting, George T. Budd | Trial completion date: Mar 2025 --> Nov 2025 | Trial primary completion date: Nov 2024 --> May 2025

AR emerges as a promising marker in breast cancers, particularly in triple-negative cases. Larger-scale studies are warranted to comprehensively assess the relationship between AR expression and histopathological parameters, as well as other immunohistochemical markers.

Online score. In conclusion, high CIN is an independent prognostic indicator for HR+/HER2- breast cancer with shorter iDFS and OS and holds promise for predicting recurrence and metastasis.

P2, N=220, Active, not recruiting, West German Study Group | Recruiting --> Active, not recruiting | Trial completion date: Oct 2024 --> Jan 2025 | Trial primary completion date: Aug 2015 --> Jan 2025

P2, N=348, Recruiting, West German Study Group | Not yet recruiting --> Recruiting

ET/HT can probably be used after ovarian neoplasms except for granulosa cell tumors, and with great caution after low-grade serous ovarian carcinoma and serous borderline ovarian tumors. ET/HT can be used with great caution in women after estrogen receptor (ER)/progesterone receptor (PR)-positive breast cancer and is probably allowed after ER/PR-negative breast cancer.

P1, N=272, Active, not recruiting, Genentech, Inc. | Trial completion date: Nov 2024 --> Mar 2025 | Trial primary completion date: Nov 2024 --> Mar 2025

P2, N=416, Completed, Palleos Healthcare GmbH | Active, not recruiting --> Completed

ER+/PR-/HER2- BC was a special subtype with aggressive clinicopathological features and more tend to have distant metastasis rather than nodal involvement or local relapse. ER+/PR-/HER2- early BC did not seem to benefit from adjuvant ET.

In PR-negative, pT1-3N0, cM0/ER+/HER2- breast cancer patients, PR status alone does not predict the RS and hence, the benefit of chemotherapy. The Oncotype DX assay effectively stratifies these patients, highlighting those with high RS (>25) who will benefit from chemotherapy. These findings underscore the importance of using Oncotype DX scores rather than PR status alone to guide chemotherapy decisions in PR-negative breast cancer patients.

Only the established Johns Hopkins University calculator demonstrated good performance in correctly stratifying our patients. This highlights the need for further refinement and validation in predictive models across diverse patient populations to optimize medical decisions.

Therapies targeting mutations in this pathway approved in conjunction with endocrine therapy include alpelisib, everolimus and capivasertib...She received nab-paclitaxel/atezolizumab for 4 months, letrozole and abemaciclib for 2 months, letrozole alone for 6 months, and letrozole and ribociclib for 6 weeks. Given presence of PIK3CA mutation, 4th line treatment with fulvestrant and alpelisib was planned...After progressing on capecitabine after 2 months, alpelisib with exemestane was initiated...Due to a low ejection fraction despite work with cardiooncology, she was not a candidate for trastuzumab deruxtecan. She progressed on oral cyclophosphamide and methotrexate after 2 months and Sacituzumab govitecan after 3 months...Comprehensive biomarker assessment is needed to identify patients who may benefit from sequential therapies. There is a need for trials comparing therapies that target the PI3K pathway at distinct points, potential sequencing of these therapies, and the optimal sequence strategy.

Our data demonstrate that higher Oncotype RS, CHEK2 mutations, lymphatic and vascular invasion, and higher Ki67 levels were identified as predictors of poorer RFS. Conversely, older age (>50 years), adjuvant ET, and adjuvant XRT were associated with improved RFS. Importantly, the presence of ATM, CHEK2, or PALB2 mutations did not significantly impact OS.

While immune markers such as TILs and PD-L1 scores are not typically measured in HER2-positive breast cancers, this data opens up the possibility of rationally leveraging targeted therapies in this subset of immune and HER2-sensitive breast cancers, thus potentially avoiding chemotherapy in the future for this biologically selected group. This regimen holds promise as an effective, relatively non-toxic, and biologically-driven alternative to standard chemotherapy for patients with HER2- enriched subset of early breast cancer.

P1/2, N=142, Recruiting, Eisai Inc. | Trial completion date: Mar 2025 --> Oct 2024 | Trial primary completion date: Mar 2025 --> Oct 2024

The case involves a 38-year-old patient with a history of hormonally treated endometriosis and five IVF cycles, who presented for mammographic and ultrasound screening. The screening revealed multicentric and multifocal BIRADS-5 lesions, with histopathological and immunohistochemical analysis confirming invasive breast carcinoma of no special type with ductal carcinoma in situ, HER2 positive (3+), estrogen receptor and progesterone receptor negative, and a Ki-67 proliferation index of 50%.

P2, N=16, Recruiting, Wake Forest University Health Sciences | Trial completion date: Jan 2025 --> Jan 2027 | Trial primary completion date: Oct 2024 --> Mar 2025

P1, N=245, Recruiting, Incyte Corporation | N=165 --> 245

Epidermal growth factor receptor expression was most likely associated with ER and PR negative tumors. Assessments of multiple molecular markers aid to understand the biological behavior of the disease in Ethiopian population. It might also help to predict which group of patients might get more benefit from the selected treatment strategies and which are not.

P1, N=573, Active, not recruiting, Exelixis | Trial completion date: Feb 2025 --> Jul 2025

MFI showed a significant predictive value for 5-year survival for patients ≥ 80 and should be part of the preoperative evaluation.

Our findings support genetic risk evaluation, enhanced screening, and lifestyle changes in women at higher risk of SBC. Additional risk factors must contribute to the unequal burden of SBC across racial and ethnic groups.

We report a relatively rare case of primary breast cancer metastasis to three metastatic sites: cervix, lung, and neck. To our best knowledge, this is the first report of primary breast cancer metastasis to three sites including the cervix.

P2, N=169, Completed, US Oncology Research | Active, not recruiting --> Completed | Trial completion date: Dec 2023 --> Aug 2024 | Trial primary completion date: Dec 2023 --> Apr 2024

P2, N=21, Recruiting, University of Wisconsin, Madison | Suspended --> Recruiting

These data provide evidence of both metabolic and epigenetic effects of n-3 PUFAs in breast adipose tissue, elucidating novel mechanisms of action for high-dose EPA+DHA-mediated prevention of ERPR(-) breast cancer. Clinicaltrials.gov identifier NCT02295059.

Evaluation of DWI findings revealed that a higher lesion-to-normal breast parenchyma apparent diffusion coefficient (ADC) ratio statistically increased the probability of HRc positivity (p = 0.033). Certain clinicopathological, mammography, and MRI features, along with the lesion-to-normal breast parenchyma ADC ratio, can serve as predictors for HRc status in DCIS lesions.

Managing Li-Fraumeni syndrome (LFS) and its associated cancers, particularly in young patients, necessitates a comprehensive and multidisciplinary approach. Early genetic testing for TP53 mutations is crucial in identifying LFS, enabling personalized treatment plans and proactive surveillance strategies.

P1/2, N=170, Active, not recruiting, Cyteir Therapeutics, Inc. | Trial completion date: Dec 2024 --> Apr 2025 | Trial primary completion date: Jul 2024 --> Dec 2024

P1/2, N=119, Active, not recruiting, AstraZeneca | Trial completion date: May 2024 --> Dec 2024

CD73 has a significant role in tumorigenesis driving the reprogramming of lipid metabolism through the regulatory loop with PR and PPARγ in epithelial cells of mammary glands. Low CD73 expression/CD73 KO might enhance mutational burden by disrupting this regulatory loop, delaying the onset of HR-negative tumors. Our results support combining therapy targeting the CD73-adenosine axis and tumor lipidome against HR-negative tumors, especially at their earliest developmental stage.

A strong association of stromal CD10 expression with a well-established negative prognostic marker such as a higher tumor grade, ER-negative status, and PR-negative status was noted and thus, stromal CD10 expression can be used as an independent prognostic marker in breast carcinoma.

P2, N=21, Suspended, University of Wisconsin, Madison | Trial primary completion date: Sep 2024 --> Dec 2024

The IHC 3+ group had a higher pCR rate than the IHC 2+/FISH(+) group. Along with clinicopathological characteristics, MRI parameters were supplemental predictors of pCR, particularly in IHC 3+ patients.