Publications by authors named "Mellado B"

Purpose: The implementation of the next-generation sequencing (NGS) in clinical practice has improved the genetic diagnosis of Hereditary Breast and Ovarian Cancer Syndrome (HBOC). We aimed to evaluate the diagnostic outcomes of using an NGS cancer gene panel in clinical practice for patients selected based on personal and/or family history of breast, ovarian, prostate, melanoma, and other HBOC-associated cancers.

Methods: The study series included 2561 consecutive Spanish individuals referred for genetic testing, comprising 2445 cancer patients and 116 healthy individuals with family history of HBOC.

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Background: Controlling re-emerging outbreaks such as COVID-19 is a critical concern to global health. Disease forecasting solutions are extremely beneficial to public health emergency management. This work aims to design and deploy a framework for real-time surveillance, prediction, forecasting, and early warning of respiratory disease.

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Introduction: Immune check-point inhibitors (ICI) were a major breakthrough in cancer care, but optimal patient selection remains elusive in most tumors.

Methods: Overall 173 adult patients with metastatic solid tumors candidates to ICI in clinical trials at our Institution were prospectively recruited. Blood samples were collected at cycle 1 (C1D1) and 2 (C2D1) and until the occurrence of progressive disease (PD).

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Unlabelled: Alterations in the tumor suppressor genes (TSGs) , , and are associated with treatment resistance, worse survival, and aggressive variants of prostate cancer (AVPC). We previously developed and validated a signature reflecting low TSG expression (TSG) that was associated with poor outcomes in patients with metastatic hormone-sensitive prostate cancer (mHSPC) treated with androgen deprivation therapy (ADT) ± docetaxel. The aim of this multicenter retrospective study was to validate the TSG signature in patients with mHSPC treated with ADT and an androgen receptor pathway inhibitor (ARPI) and to explore clinical characteristics at progression according to TSG status.

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Background: [Lu]Lu-PSMA-617 (Lu-PSMA-617) prolongs radiographic progression-free survival and overall survival in patients with metastatic castration-resistant prostate cancer previously treated with androgen receptor pathway inhibitor (ARPI) and taxane therapy. We aimed to investigate the efficacy of Lu-PSMA-617 in patients with taxane-naive metastatic castration-resistant prostate cancer.

Methods: In this phase 3, randomised, controlled trial conducted at 74 sites across Europe and North America, taxane-naive patients with prostate-specific membrane antigen (PSMA)-positive metastatic castration-resistant prostate cancer who had progressed once on a previous ARPI were randomly allocated (1:1) to open-label, intravenous Lu-PSMA-617 at a dosage of 7·4 GBq (200 mCi) ± 10% once every 6 weeks for six cycles, or a change of ARPI (to abiraterone or enzalutamide, administered orally on a continuous basis per product labelling).

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Background: Platinum-based chemotherapy (ChT) has been the standard first-line treatment for metastatic urothelial carcinoma (mUC). The purpose of this study was to evaluate the use of induction avelumab followed by avelumab in combination with carboplatin-gemcitabine (carbo/gem) followed by avelumab maintenance. We tested the hypothesis that induction immunotherapy (IO) could enhance the response to ChT and prevent its detrimental effect on immune cells.

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Global artificial intelligence (AI) governance must prioritize equity, embrace a decolonial mindset, and provide the Global South countries the authority to spearhead solution creation. Decolonization is crucial for dismantling Western-centric cognitive frameworks and mitigating biases. Integrating a decolonial approach to AI governance involves recognizing persistent colonial repercussions, leading to biases in AI solutions and disparities in AI access based on gender, race, geography, income and societal factors.

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Manually labeling data for supervised learning is time and energy consuming; therefore, lexicon-based models such as VADER and TextBlob are used to automatically label data. However, it is argued that automated labels do not have the accuracy required for training an efficient model. Although automated labeling is frequently used for stance detection, automated stance labels have not been properly evaluated, in the previous works.

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Article Synopsis
  • The study investigates how specific immune cell types in blood samples from patients with metastatic castration-resistant prostate cancer (mCRPC) can affect survival rates.
  • Researchers analyzed pre-treatment blood samples from 152 patients and found that lower CD8 T-cell counts and higher monocyte levels were linked to shorter survival.
  • Their results suggest that these immune cell types could act as important biomarkers for mCRPC management, supporting the need for further research in clinical trials.
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  • - The study aimed to analyze adverse events (AEs) linked to apalutamide treatment in prostate cancer patients and evaluate the effectiveness of a multidisciplinary team (MDT) approach in managing these AEs in a real-world hospital setting.
  • - Out of 121 patients treated, over half experienced AEs, with a notable difference in dose interruptions and treatment discontinuation between those managed with and without the MDT protocol; only 16.7% had interruptions under MDT compared to 24.5% without it.
  • - The findings indicate that employing a multidisciplinary team was significantly beneficial in reducing the risk of treatment discontinuation due to AEs, emphasizing the need for coordinated care in managing patient treatment.
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  • Recent clinical trials indicate that combining PARP inhibitors with novel hormonal therapy can improve progression-free survival in men with metastatic prostate cancer, leading to new approvals for this treatment by regulatory bodies in several countries.
  • * The study utilized the RAND/UCLA Delphi method, involving a panel of 12 experts who reviewed literature and rated management options for adverse events (AEs) arising from treatment across 419 patient scenarios.
  • * Key findings showed a significant reduction in disagreement among experts on AE management strategies, with consensus on approaches for managing mild, moderate, and severe AEs, enhancing guidance for clinical decision-making.
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Objective: To assess the impact of self-medication on the transmission dynamics of COVID-19 across different age groups, examine the interplay of vaccination and self-medication in disease spread, and identify the age group most prone to self-medication.

Methods: We developed an age-structured compartmentalized epidemiological model to track the early dynamics of COVID-19. Age-structured data from the Government of Gauteng, encompassing the reported cumulative number of cases and daily confirmed cases, were used to calibrate the model through a Markov Chain Monte Carlo (MCMC) framework.

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Background: Androgen deprivation therapy (ADT) with docetaxel (D) and/or antiandrogen receptor therapies (ARTs) are the standard therapies in metastatic hormone-sensitive prostate cancer (mHSPC). Alterations in the tumor suppressor genes (TSGs) RB1, PTEN, and TP53 are associated with an aggressive evolution and treatment resistance in castration-resistant prostate cancer (CRPC).

Objective: To study the clinical implications of TSG mRNA expression in mHSPC patients.

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Article Synopsis
  • The study investigates the immunocytokine cergutuzumab amunaleukin (CEA-IL2v) and its effects on patients with advanced carcinoembryonic antigen-positive tumors, focusing on its safety, pharmacodynamics, and the issue of anti-drug antibodies (ADA).
  • Researchers explored using obinutuzumab, a treatment that depletes B-cells, as a strategy to reduce ADA development while analyzing its effects in clinical trials.
  • Results indicated that patients pretreated with obinutuzumab showed a significantly lower incidence of ADAs, suggesting it could be a viable approach to enhance the safety and efficacy of CEA-IL2v therapy, although some increased liver toxicity was noted in combination treatments
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Article Synopsis
  • Docetaxel is the standard treatment for advanced prostate cancer, but many patients develop resistance due to certain cell signaling pathways becoming overly active.
  • This study investigates the combined inhibition of the PI3K/AKT and MEK/ERK pathways in prostate cancer cells that are resistant to docetaxel, showing that this combo treatment can reduce cell growth and promote cancer cell death.
  • The results suggest that using selumetinib and AZD8186 together could be a new therapeutic approach for patients with a specific type of docetaxel-resistant prostate cancer, paving the way for future clinical trials.
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Background: Preclinical and early clinical data suggest that the irreversible ErbB family blocker afatinib may be effective in urothelial cancers harbouring ERBB mutations.

Methods: This open-label, phase II, single-arm trial (LUX-Bladder 1, NCT02780687) assessed the efficacy and safety of second-line afatinib 40 mg/d in patients with metastatic urothelial carcinoma with ERBB1-3 alterations. The primary endpoint was 6-month progression-free survival rate (PFS6) (cohort A); other endpoints included ORR, PFS, OS, DCR and safety (cohorts A and B).

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Background And Aims: The spatial and temporal genetic heterogeneity of bladder cancer (BC) makes challenging to find specific drivers of metastatic disease, thus preventing to determine those BC patients at high risk of tumor progression. Our aim was to identify DNA mutations providing aggressive behavior to bladder tumors and analyze them in patients' cell-free DNA (cfDNA) during their follow-up after radical cystectomy (RC) in order to monitor tumor evolution.

Methods: Six BC patients who underwent RC and presented disease progression during their follow-up were included.

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The SOGUG-IMANOL trial was a phase 2, uncontrolled, Spanish multicenter study to assess the effect of maintenance treatment with olaparib on radiographic progression-free survival (PFS) in patients with metastatic castration-resistant prostate cancer (mCRPC) who achieved partial or complete response or disease stabilization on docetaxel treatment and had a documented germline/somatic mutation in any of the homologous recombination repair (HRR) genes. Patients received olaparib 300 mg orally twice daily. From the screened population ( = 134), 26 (19.

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Social media contains useful information about people and society that could help advance research in many different areas of health (e.g. by applying opinion mining, emotion/sentiment analysis and statistical analysis) such as mental health, health surveillance, socio-economic inequality and gender vulnerability.

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Background: Ibrutinib, a first-in-class inhibitor of Bruton's tyrosine kinase, is approved for the treatment of various B-cell malignancies and chronic graft-versus-host disease. Based on encouraging preclinical data, safety and efficacy of ibrutinib combined with companion drugs for advanced renal cell carcinoma (RCC), gastric/gastroesophageal junctional adenocarcinoma (GC), and colorectal adenocarcinoma (CRC) were evaluated.

Methods: Ibrutinib 560 mg or 840 mg once daily was administered with standard doses of everolimus for RCC, docetaxel for GC, and cetuximab for CRC.

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Although rejected by the World Health Organization, the human and even veterinary formulation of ivermectin has widely been used for prevention and treatment of COVID-19. In this work we leverage Twitter to understand the reasons for the drug use from ivermectin supporters, their source of information, their emotions, their gender demographics, and location information, in Nigeria and South Africa. Topic modelling is performed on a Twitter dataset gathered using keywords 'ivermectin' and 'ivm'.

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(1) Background: Prostate cancer is the second most common cancer in men, with androgen suppression as the standard treatment. Despite initially responding to castration, most metastatic prostate cancer patients eventually experience progression. In these cases, Radium-223 is the chosen treatment.

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Ibrutinib is a first-in-class Bruton's tyrosine kinase inhibitor approved for the treatment of various B-cell malignancies and chronic graft-versus-host disease. We evaluated the safety and efficacy of ibrutinib, alone or combined with standard-of-care regimens, in adults with advanced urothelial carcinoma (UC). Once-daily ibrutinib was administered orally at 840 mg (single-agent or with paclitaxel) or at 560 mg (with pembrolizumab).

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Article Synopsis
  • - Erdafitinib is used to treat adults with advanced urothelial carcinoma who have not responded to prior platinum-based chemotherapy, aiming to understand the frequency and management of side effects from this treatment.
  • - In the BLC2001 clinical trial, 101 patients were treated with a specific dosage and monitoring for side effects like hyperphosphatemia, stomatitis, and skin issues, with most side effects being mild (grade 1 or 2) and manageable.
  • - Results showed that while some adverse events did occur, they were typically manageable, leading to few patients needing to stop treatment, but more research is necessary to see if these management strategies apply to a broader patient population.
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We conducted an observational retrospective study on patients hospitalized with COVID-19, during March 05, 2020, to October 28, 2021, and developed an agent-based model to evaluate effectiveness of recommended healthcare resources (hospital beds and ventilators) management strategies during the COVID-19 pandemic in Gauteng, South Africa. We measured the effectiveness of these strategies by calculating the number of deaths prevented by implementing them. We observed differ ences between the epidemic waves.

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