Publications by authors named "Guillermo Villacampa"

Article Synopsis
  • Antibody-drug conjugates (ADCs) T-DXd and SG improved progression-free survival (PFS) and overall survival (OS) compared to chemotherapy in metastatic breast cancer (MBC) but have not been directly compared.
  • A network meta-analysis revealed that T-DXd and SG had similar efficacy in hormone receptor-positive (HR+) and triple-negative (TN)/HER2-low MBC, while T-DXd showed better results against standard chemotherapy.
  • T-DXd demonstrated more favorable outcomes in HR+/HER2-low for both PFS and OS, but SG showed higher rates of specific side effects, including neutropenia and diarrhea, while T-DXd was associated with more serious adverse events like pneumonitis and cardiotoxicity
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With the incorporation of cyclin-dependent kinase inhibitors in early breast cancer (BC), a better identification of biomarkers is needed. The PROMETEO II trial aimed to evaluate the antitumor activity of palbociclib plus letrozole and to identify response biomarkers in patients with operable HR+/HER2- BC and residual disease after neoadjuvant chemotherapy (NAC). The primary endpoint was the rate of complete cell cycle arrest (CCCA), centrally determined by Ki67 ≤ 2.

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Background: Prognostic factors for ambulatory oncology patients have been described, including Eastern Cooperative Oncology Group (ECOG), tumor stage and malnutrition. However, there is no firm evidence on which variables best predict mortality in hospitalized patients receiving active systemic treatment. Our main goal was to develop a predictive model for 90-day mortality upon admission.

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Chimeric antigen receptor (CAR) T-cell therapy fails to achieve durable responses in over 60% of relapsed/refractory (R/R) large B-cell lymphoma (LBCL) patients in the third or later line setting. After CAR-T failure, survival outcomes are heterogeneous and a prognostic model in this patient population is lacking. A training cohort of 216 patients with progressive disease (PD) after CAR-T from 12 Spanish centers was used to develop the Post-CAR Prognostic Index (PC-PI); primary endpoint was overall survival (OS) from CAR-T progression.

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Background: Combining antibody-drug conjugate (ADCs) with immune checkpoint inhibitors (ICIs) is emerging as a promising treatment option to increase efficacy outcomes. However, concerns arise regarding the safety of these combinations, as some toxicities may overlap. Currently, there is still limited information about the safety profiles of this strategy.

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Importance: Recent studies have investigated the combination of immune checkpoint inhibitors (ICIs) with (neo)adjuvant chemotherapy in early-stage breast cancer. However, there is an ongoing debate about the optimal approach for integrating this strategy.

Objectives: To evaluate the association of neoadjuvant ICIs with pathologic complete response (pCR) across molecular phenotypes, to quantify the survival benefits of ICIs beyond pCR status, and to estimate the incidence of specific adverse events.

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Purpose: The purpose of this study was to assess the predictive capability of HER2DX assay following (neo)adjuvant trastuzumab-pertuzumab (HP)-based therapy in HER2-positive (HER2+) early breast cancer.

Experimental Design: HER2DX was analyzed in baseline pretreatment tumors from the PHERGain trial. Patients with stage I-IIIA HER2+ early breast cancer were randomized to group A [docetaxel, carboplatin, and HP (TCHP)] and group B (HP ± endocrine therapy).

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Patritumab deruxtecan (HER3-DXd) exhibits promising efficacy in breast cancer, with its activity not directly correlated to baseline ERBB3/HER3 levels. This research investigates the genetic factors affecting HER3-DXd's response in women with early-stage hormone receptor-positive and HER2-negative (HR+/HER2-) breast cancer. In the SOLTI-1805 TOT-HER3 trial, a single HER3-DXd dose was administered to 98 patients across two parts: 78 patients received 6.

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Purpose: Long-term outcomes of patients with stage I human epidermal growth factor receptor 2 (HER2)-positive breast cancer receiving adjuvant trastuzumab emtansine (T-DM1) remain undefined, and prognostic predictors represent an unmet need.

Methods: In the ATEMPT phase II trial, patients with stage I centrally confirmed HER2-positive breast cancer were randomly assigned 3:1 to adjuvant T-DM1 for 1 year or paclitaxel plus trastuzumab (TH). Coprimary objectives were to compare the incidence of clinically relevant toxicities between arms and to evaluate invasive disease-free survival (iDFS) with T-DM1.

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In this study, we performed genomic analyses of cell cycle and tumor microenvironment changes during and after ribociclib and letrozole or chemotherapy in the CORALLEEN trial. 106 women with untreated PAM50-defined Luminal B early breast cancers were randomly assigned to receive neoadjuvant ribociclib and letrozole or standard-of-care chemotherapy. Ki67 immunohistochemistry, tumor-infiltrating lymphocytes quantification, and RNA sequencing were obtained from tissue biopsies pre-treatment, on day 14 of treatment, and tumor specimens from surgical resection.

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Article Synopsis
  • Early-stage triple-negative breast cancer (TNBC) has variability in its clinical and biological characteristics, with immune infiltration impacting prognosis, and there’s a need for better genomic tools for treatment decisions.
  • This study analyzed genomic and clinical data across seven patient cohorts to evaluate the role of a B-cell/immunoglobulin signature (IGG) in predicting event-free survival (EFS) and overall survival (OS) in TNBC patients.
  • Results indicated that IGG is associated with improved EFS and OS, and its integration with tumor staging can help identify patients who may benefit from tailored treatments.
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Article Synopsis
  • The treatment landscape for metastatic urothelial carcinoma is evolving, with the combination of pembrolizumab and enfortumab vedotin emerging as a potentially better option than traditional platinum-based chemotherapies.
  • New challenges arise regarding the best second-line treatments and the importance of molecular profiling of tumors in therapy selection.
  • Recent trials have shown that combining nivolumab with platinum-based chemotherapy may be more effective than chemotherapy alone, highlighting the need for further translational research to understand these differing results.
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Article Synopsis
  • * In the cTRAK-TN trial with 141 patients, personalized multimutation sequencing (47.9%) was more effective at first detecting minimal residual disease (MRD) than digital PCR, which showed 0% detection at the same time.
  • * Patients whose MRD was detected earlier had shorter lead times to relapse, highlighting the clinical significance of using personalized sequencing for early detection and potential better outcomes.
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Background: The GOG240 trial established bevacizumab with chemotherapy as standard first-line therapy for metastatic or recurrent cervical cancer. In the BEATcc trial (ENGOT-Cx10-GEICO 68-C-JGOG1084-GOG-3030), we aimed to evaluate the addition of an immune checkpoint inhibitor to this standard backbone.

Methods: In this investigator-initiated, randomised, open-label, phase 3 trial, patients from 92 sites in Europe, Japan, and the USA with metastatic (stage IVB), persistent, or recurrent cervical cancer that was measurable, previously untreated, and not amenable to curative surgery or radiation were randomly assigned 1:1 to receive standard therapy (cisplatin 50 mg/m or carboplatin area under the curve of 5, paclitaxel 175 mg/m, and bevacizumab 15 mg/kg, all on day 1 of every 3-week cycle) with or without atezolizumab 1200 mg.

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Article Synopsis
  • Breast cancer diagnosed during pregnancy (PrBC) and postpartum (PPBC) tends to be found at more advanced stages, leading to a poorer prognosis, especially with PPBC being very aggressive.
  • Researchers discovered that cell-free tumor DNA (ctDNA) can be detected in breast milk (BM) from breast cancer patients, showing higher detection rates compared to plasma samples.
  • This study suggests that using BM for ctDNA analysis could serve as a novel liquid biopsy method, allowing for earlier detection of breast cancer, even months before standard diagnosis techniques.
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Background: Breast surgery in cases of de novo metastatic breast cancer (MBC) is associated with improved outcomes in retrospective studies, although the results of randomized controlled trials (RCTs) are conflicting. We aimed to investigate whether surgery in this context prolongs patient survival.

Methods: We performed a systematic review of the literature to identify RCTs comparing surgery of primary breast cancer to no surgery in patients with de novo MBC.

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Background: The paradigm of early phase dose-finding trials has evolved in recent years. Innovative dose-finding designs and protocols which combine phases I and II are becoming more popular in health research. However, the quality of these trial protocols is unknown due to a lack of specific reporting guidelines.

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Purpose: We evaluated the prevalence of immune-related adverse events and anti-tumor efficacy in advanced/metastatic urothelial carcinoma following immune-checkpoint inhibitors (ICIs) treatment.

Methods: We conducted a multicenter retrospective study of patients with advanced/metastatic urothelial carcinoma treated with ICIs in four Spanish institutions. irAEs were classified using Common Terminology Criteria for Adverse Event (CTCAE) v.

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Background: The recommended preoperative approach for HER2-positive breast cancer is unclear. We aimed to investigate the following: i) what is the optimal neoadjuvant regimen and ii) whether anthracyclines could be excluded.

Methods: A systematic literature search in Medline, Embase and Web of Science databases was performed.

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Importance: Patients with early-stage ERBB2 (formerly HER2)-positive breast cancer (ERBB2+ BC) who experience a pathologic complete response (pCR) after receiving neoadjuvant therapy have favorable survival outcomes. Predicting the likelihood of pCR may help optimize neoadjuvant therapy.

Objective: To test the ability of the HER2DX assay to predict the likelihood of pCR in patients with early-stage ERBB2+ BC who are receiving deescalated neoadjuvant therapy.

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Article Synopsis
  • Researchers are focusing on the need for biomarkers to enhance the use of pertuzumab in treating early-stage ERBB2-positive breast cancer, moving beyond just ERBB2 status.
  • The study aims to evaluate if the HER2DX genomic assay can predict patient responses to trastuzumab-based chemotherapy, with or without pertuzumab, using tissue samples taken before treatment.
  • In a retrospective analysis involving 155 patients, the study found significant associations between baseline pCR scores from the genomic assay and the likelihood of achieving a pathologic complete response in breast and axillary tissues.
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Background: PD1/PD-L1 immune checkpoint inhibitors (ICI) have revolutionized cancer treatment. Although there is controversy about the accuracy of surrogate endpoints in the ICI setting to predict overall survival (OS), these endpoints are commonly used in confirmatory trials. Here we aimed to explore the validity of classical and novel surrogate endpoints in randomised controlled trials (RCT) that combine ICI plus chemotherapy (CT) in the first-line setting.

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Background: Beyond programmed death-ligand 1 (PD-L1) assessed by the combined positive score (CPS) and tumor mutational burden (TMB), no other biomarkers are approved for immunotherapy interventions. Here, we investigated whether additional clinical and pathological variables may impact on immunotherapy outcomes in recurrent or metastatic (R/M) head and neck squamous cell carcinoma (HNSCC) patients.

Methods: R/M HNSCC patients treated with immunotherapy were reviewed.

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Background: We aimed to report on long-term outcomes of patients with small, node-negative, HER2-positive breast cancer treated with adjuvant paclitaxel and trastuzumab and to establish potential biomarkers to predict prognosis.

Methods: In this open-label, single-arm, phase 2 study, patients aged 18 years or older, with small (≤3 cm), node-negative, HER2-positive breast cancer, and an Eastern Cooperative Oncology Group performance status of 0-1, were recruited from 16 institutions in 13 cities in the USA. Eligible patients were given intravenous paclitaxel (80 mg/m) with intravenous trastuzumab (loading dose of 4 mg/kg, subsequent doses 2 mg/kg) weekly for 12 weeks, followed by trastuzumab (weekly at 2 mg/kg or once every 3 weeks at 6 mg/kg) for 40 weeks to complete a full year of trastuzumab.

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