HER2 Negative Breast Cancer

In addition, WWZ-11-098 displayed favorable pharmacokinetic properties (Cmax = 11833 ng/mL, T1/2 = 2.64 h after a 5 mpk IV dose) and exhibited robust antitumor efficacy (TGI: 77.1 % @10 mpk) in a MOLT-4 xenograft model without signs of toxicity. The compound provides not only a valuable chemical probe but also a lead structure for further development of CDK6 degraders.

To overcome this challenge, we designed and synthesized a series of novel covalent inhibitors for CDK6 that contain the Palbociclib core pharmacophore...In vivo experiments further demonstrated that C32 has a favorable safety profile and pharmacokinetic properties, while exhibiting significant anti-TNBC effects. As a novel CDK6 covalent inhibitor, C32 is expected to be a candidate compound for the treatment of TNBC.

Postoperatively, the patient received TC(docetaxel+cyclophosphamide) chemotherapy, total breast irradiation, and tamoxifen for 10 years. Considering the different subtypes and absence of other lesions, the patient was considered to have latent breast cancer as a new lesion. Chemotherapy, including anti- HER2 therapy, radiotherapy, and endocrine therapy, was administered as adjuvant treatment.

In the CAPItello-291 trial, capivasertib and fulvestrant demonstrated efficacy in patients with up to two prior lines endocrine therapy, but its use in late-line settings has not yet been reported. In this article, we report a case of a woman with metastatic recurrent breast cancer who was treated with capivasertib and fulvestrant was used as the late-line treatment, resulting in a progression-free survival of 8 months.

One PD and 6 adverse events were the reasons for switching to ABM after taking PLB. Although the number of patients was small, PFS with sequential CDK4/6 inhibitors could be expected to be longer than 6 months, suggesting that the treatment may be useful in extending the time to chemotherapy induction.

Postoperatively, tamoxifen, a CDK4/6 inhibitor, and radiotherapy were administered...Despite initiating weekly paclitaxel plus bevacizumab, the disease progressed rapidly, and she died 4 months later. Notably, OMS symptoms did not recur. This case highlights paraneoplastic OMS as an initial manifestation of breast cancer, with neurological improvement following systemic therapy.

After irradiation to the pain area, paclitaxel and bevacizumab therapy was administered, and a marked reduction of pulmonary and liver metastases, and the disappearance of pain were observed. Local hepatic therapy with TAE followed by chemotherapy was thought to have helped the patient overcome the rapid tumor growth.

The results were ER negative, PgR positive, HER2 negative, and Ki-67 25%. As the prognosis and treatment of invasive lobular carcinoma was unclear, caution was required.

Following completion of weekly paclitaxel(PTX), initiation of epirubicin plus cyclophosphamide(EC)resulted in a marked platelet decrease to 1.3×104/μL on day 7, necessitating repeated platelet transfusions. These findings suggest that in breast cancer patients with ITP, neoadjuvant chemotherapy may not be feasible, and primary surgical intervention should be considered. Furthermore, when administering EC, vigilant hematological monitoring is imperative.

Three lymph node metastases were identified. Oncotype DX was performed but was judged inconclusive due to insufficient tumor tissue.

The efficacy of perioperative treatment with pembrolizumab for early-stage triple-negative breast cancer(TNBC)at high risk of recurrence was demonstrated in the KEYNOTE-522 trial, and it's indication was expanded in Japan as of September 2022...As follow-up continued, CEA levels began to decline and the thymic enlargement showed a tendency to regress. These findings suggest a potential association between immune checkpoint inhibitor and thymic enlargement, as well as a possible link to the observed CEA elevation.