Publications by authors named "Rafael Villanueva-Vazquez"

Article Synopsis
  • Giredestrant is a new oral drug being tested for treating estrogen receptor-positive breast cancer, focusing on its effectiveness and safety in a clinical trial (GO39932).
  • The study included patients with advanced breast cancer already treated with other therapies, and evaluated different doses of giredestrant alone or in combination with other drugs, finding no major toxicity and a clinical benefit in many patients.
  • Results suggest that giredestrant is both tolerable and effective, indicating the need for more extensive trials to explore its use in both early and late stages of ER+ breast cancer.
View Article and Find Full Text PDF
Article Synopsis
  • GDC-0927 is a new oral medication designed to target and degrade estrogen receptors, showing potential in treating ER+ breast cancer by inducing tumor regression in lab models.
  • In a phase I study involving postmenopausal women with metastatic breast cancer, the drug was found to be safe, with common side effects including nausea and fatigue, but no severe adverse events or deaths reported.
  • Although no complete or partial tumor responses were observed, about 29% of patients experienced clinical benefits, with significant reductions in estrogen receptor activity that suggest the drug successfully engages its target.
View Article and Find Full Text PDF

Background: Breast cancer is the most common malignancy and the second leading cause of cancer-related mortality in Spanish women. Ribociclib in combination with endocrine therapy (ET) has shown superiority in prolonging survival in patients with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) advanced breast cancer (ABC) vs. ET alone.

View Article and Find Full Text PDF

Metaplastic breast carcinomas are a rare and heterogeneous group of tumors (0.5-2%). They are mainly triple negative tumors but they present poorer chemotherapy responses and worse prognosis than other triple negative tumors.

View Article and Find Full Text PDF

Purpose: Ribociclib plus endocrine therapy (ET) demonstrated a statistically significant progression-free survival and overall survival (OS) benefit in the phase III MONALEESA-7 trial of pre-/perimenopausal patients with hormone receptor (HR)-positive (HR+), HER2-negative (HER2-) advanced breast cancer (ABC). The median OS was not reached in the ribociclib arm in the protocol-specified final analysis; we hence performed an exploratory OS and additional outcomes analysis with an extended follow-up (median, 53.5 months).

View Article and Find Full Text PDF

Purpose: This analysis evaluated the genomic landscape of premenopausal patients with hormone receptor-positive and human epidermal growth factor receptor 2-negative advanced breast cancer and the association of genetic alterations with response to ribociclib in the phase III MONALEESA-7 trial.

Methods: Premenopausal patients were randomly assigned 1:1 to receive endocrine therapy plus ribociclib or placebo. Plasma collected at baseline was sequenced using targeted next-generation sequencing for approximately 600 relevant cancer genes.

View Article and Find Full Text PDF

Background: This analysis evaluated patient-reported outcomes (PROs) to assess health-related quality of life (HRQoL) in the phase III MONALEESA-7 trial, which previously demonstrated improvements in progression-free survival (PFS) and overall survival (OS) with ribociclib (cyclin-dependent kinase 4/6 inhibitor) + endocrine therapy (ET) compared with placebo + ET in pre- and perimenopausal patients with hormone-receptor-positive, HER2-negative (HR+/HER2-) advanced breast cancer (ABC).

Methods: The European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life questionnaire C30 (QLQ-C30) and the EQ-5D-5L were used to evaluate HRQoL.

Results: EORTC QLQ-C30 assessments were evaluable for 335 patients in the ribociclib arm and 337 patients in the placebo arm.

View Article and Find Full Text PDF

Metastatic breast cancer (MBC) diagnosis in young women negatively impacts on quality of life (QoL) and daily activities, disrupting their life project and forcing them to face new psychosocial challenges. The recently published results on the improvement of the overall survival of pre- or perimenopausal women with hormone-receptor-positive, HER2-negative MBC treated with CDK4/6 inhibitors plus endocrine therapy, while preserving, and in some items improving their QoL, will change the landscape of the management of this patient population. Their extended survival and potential improvement in QoL will, therefore, modify their specific needs in terms of psychosocial support.

View Article and Find Full Text PDF

Background: An earlier analysis of this phase 3 trial showed that the addition of a cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitor to endocrine therapy provided a greater benefit with regard to progression-free survival than endocrine therapy alone in premenopausal or perimenopausal patients with advanced hormone-receptor-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer. Here we report the results of a protocol-specified interim analysis of the key secondary end point of overall survival.

Methods: We randomly assigned patients to receive either ribociclib or placebo in addition to endocrine therapy (goserelin and either a nonsteroidal aromatase inhibitor or tamoxifen).

View Article and Find Full Text PDF

Background: In MONALEESA-2, ribociclib plus letrozole showed improved progression-free survival compared with letrozole alone as first-line treatment for postmenopausal patients with hormone receptor (HR)-positive, HER2-negative, advanced breast cancer. MONALEESA-7 aimed to assess the efficacy and safety of ribociclib plus endocrine therapy in premenopausal women with advanced, HR-positive breast cancer.

Methods: This phase 3, randomised, double-blind, placebo-controlled trial was done at 188 centres in 30 countries.

View Article and Find Full Text PDF