Efficacy of Subsequent Treatments After Disease Progression on CDK4/6 Inhibitors in Patients With Hormone Receptor-Positive Advanced Breast Cancer.

Purpose: Cyclin-dependent kinase 4/6 inhibitors (CDK4/6is) combined with endocrine therapy (ET) are the standard of care in hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR+/HER2-) advanced breast cancer (aBC). Yet, disease progression remains common. In the absence of established postprogression sequencing guidelines, we conducted a pooled analysis of Kaplan-Meier (KM)-derived patient data to assess the efficacy of subsequent treatment options after disease progression on CDK4/6i therapy.

Impact of sex differences on patients with neuroendocrine neoplasms during hospital admission.

Background: Sex disparities are known modifiers of health and disease. In neuroendocrine neoplasms (NENs), sex-based differences have been observed in the epidemiology and treatment-related side effects.

Objectives: To examine sex differences in demographics, diagnoses present during hospital admission, comorbidities, and outcomes of hospital course among hospitalized patients with NENs.

Phase II study of MEK inhibitor trametinib alone and in combination with AKT inhibitor GSK2141795/uprosertib in patients with metastatic triple negative breast cancer.

Purpose: While MEK inhibitors demonstrated activity in metastatic triple negative breast cancer (mTNBC) preclinical studies, preclinical, and clinical studies implicate rapid development of resistance limiting clinical benefit. The purpose of this study was to determine response rate for Trametinib alone and in combination with Uprosertib in patients with mTNBC previously treated with chemotherapy.

Methods: This was an open-label, two-part, phase II, single-arm, multicenter study.

NF-κB associated markers of prognosis in early and metastatic triple negative breast cancer.

Background: Triple negative breast cancer (TNBC) is the most aggressive subtype of breast cancer. While PD-1 based immunotherapies overall have led to improved treatment outcomes for this disease, a diverse response to frontline chemotherapy and immunotherapy still exist in TNBC, highlighting the need for more robust prognostic markers.

Methods: Tumor-intrinsic immunotranscriptomics, serum cytokine profiling, and tumor burden studies were conducted in two syngeneic mouse models to assess differential effects in both the early-stage and metastatic setting.

Pathognomonic Features of Olmesartan-Induced Collagenous Sprue Resulting in Severe Small Bowel Malabsorption.

Collagenous sprue (CS) is a rare autoimmune gastrointestinal disorder characterized by specific histologic changes in the small intestine. It often presents with more severe symptoms and a worse prognosis compared to celiac disease, including significant malabsorption, weight loss, and nutrient deficiencies. Despite treatment with a gluten-free diet, symptom improvement is limited, with only a small fraction of patients responding positively.