PGR positive

P2, N=99, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: Jun 2026 --> Dec 2026 | Trial primary completion date: Jun 2026 --> Dec 2026

Rising CA 15-3 was associated with reduced DRFS in luminal and triple negative bc but not in HER2 positive bc.

Despite the initiation of corticosteroids and methotrexate, the patient showed clinical deterioration over four weeks...Following neoadjuvant chemotherapy, surgery, and radiation, the patient achieved complete remission of her myositis, with normalisation of creatine phosphokinase (CPK) levels, resolution of rash, and recovery of muscle strength, confirming the paraneoplastic aetiology. This case underscores the imperative to pursue malignancy screening in DM patients unresponsive to immunosuppressive therapy, regardless of age. It highlights the critical role of thorough physical examination and the superiority of breast imaging in young women with dense breasts.

P1, N=28, Suspended, H. Lee Moffitt Cancer Center and Research Institute | Recruiting --> Suspended | Trial primary completion date: Apr 2026 --> Aug 2026

P2, N=60, Recruiting, University of Texas Southwestern Medical Center | Trial primary completion date: Apr 2026 --> Apr 2027

Postoperatively, he received adjuvant stereotactic radiosurgery (30-35 Gy in five fractions) to the resection cavity and was transitioned from tamoxifen to trastuzumab deruxtecan (T-DXd) for improved CNS-directed systemic therapy. Surveillance imaging at 6 months demonstrated no intracranial recurrence, and systemic restaging showed no extracranial disease progression. This case highlights the importance of prompt neuroimaging for new neurological symptoms in male breast cancer patients and supports a multimodal strategy, including surgical resection, focal radiation, and CNS-penetrant HER2-targeted therapy, for achieving durable intracranial control in select patients with isolated brain metastasis.

Although ACCB generally has a good prognosis, the treatment of this rare type of breast cancer remains challenging to ensure favorable outcomes with minimal sequelae. Initial staging and long-term follow-up using appropriate imaging modalities are essential for selecting tailored treatment strategies and detecting early relapses.

Unlike the canonical activation of PAR1 by thrombin, which enhances cell proliferation via mechanistic target of rapamycin (mTOR) signaling, HAP-induced noncanonical activation downregulates mTOR activation and triggers autophagy in both estrogen receptor positive/ progesterone receptor positive/ HER2 negative (ER+/PR+/HER2-) and triple negative (ER-/PR-/HER2-) breast cancer cells...Importantly, the lack of PAR1 expression in normal, healthy breast epithelial cells facilitates the peptide to selectively target breast cancer cells with relatively high PAR1 expression, highlighting its potential as a therapeutic agent against low-grade malignant breast tumor. These findings provide valuable insights into autophagy activation by a synthetic peptide that targets breast cancer cells with high PAR1 expression and for the first time shows peptide mediated targeted therapy of low-grade malignant breast tumor.

P1, N=46, Completed, Ono Pharmaceutical Co., Ltd. | Active, not recruiting --> Completed

P=N/A, N=400, Not yet recruiting, IceCure Medical Ltd.

P3, N=1155, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: May 2027 --> Aug 2026 | Trial primary completion date: May 2027 --> Aug 2026

These findings suggest that IGF-1 and IGFBP-3 may have potential as candidate biomarkers for breast cancer risk and progression. Integrating genetic, biochemical, and hormone receptor status provides novel insights into breast cancer biology and may support future research on personalized prevention and treatment strategies, particularly in resource-limited settings such as the Gaza Strip.