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PUCRS School of Medicine[Affiliation] Publications | LitMetric

75 results match your criteria: "PUCRS School of Medicine[Affiliation]"

What Is This Summary About?: This summary describes the results from the TALAPRO-2 research study (also known as a clinical trial). The TALAPRO-2 study tested the combination of two medicines called talazoparib plus enzalutamide. This combination of medicines was used as the first treatment for adult patients with metastatic castration-resistant prostate cancer.

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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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  • There is ongoing debate about whether sex influences the effectiveness of immune checkpoint inhibitors in cancer treatment, specifically for metastatic renal cell carcinoma (mRCC).
  • A study involving 1,827 mRCC patients from multiple countries found that overall median overall survival (OS) was similar for both sexes, but males performed better in specific subgroups, particularly younger patients and those with certain cancer histologies.
  • Interestingly, female sex was identified as a negative prognostic factor in patients with sarcomatoid differentiation, suggesting that despite women having stronger immune responses, their outcomes in these cases were worse than those of men.
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Background: Studies have shown improved survival among individuals with cancer with higher levels of social support. Few studies have investigated social support and overall survival (OS) in individuals with advanced prostate cancer in an international cohort. We investigated the associations of marital status and living arrangements with OS among individuals with advanced prostate cancer in the International Registry for Men with Advanced Prostate Cancer (IRONMAN).

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Background: Systemic treatment with immune combinations is the gold standard for metastatic renal cell carcinoma (mRCC) worldwide. The systemic immune-inflammation index (SII) is a prognostic marker for several types of malignant neoplasms, including mRCC, in the era of tyrosine kinase inhibitor (TKI) treatment. Data regarding the prognostic value of the SII in patients with mRCC treated with immunotherapy are scarce and controversial.

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  • Preclinical studies indicate a link between the androgen receptor and poly(ADP-ribose) polymerase in prostate cancer, suggesting that inhibiting both may effectively treat metastatic castration-resistant prostate cancer (mCRPC).
  • The TALAPRO-2 phase 3 study compared the effects of combining talazoparib (a poly(ADP-ribose) polymerase inhibitor) with enzalutamide against enzalutamide alone, specifically focusing on patients with DNA damage response gene alterations.
  • Results showed that the combination therapy significantly extended radiographic progression-free survival for patients with homologous recombination repair (HRR) deficiencies, with the talazoparib group not reaching median survival at the time of
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Circulating tumor cells as a predictor and prognostic tool for metastatic clear cell renal carcinoma: An immunocytochemistry and genomic analysis.

Pathol Res Pract

January 2024

International Research Center, A.C. Camargo Cancer Center, São Paulo 01508-010, Brazil; Associação Beneficente Síria, HCor, São Paulo 04004-030, Brazil; Hospital Amaral Carvalho, Jaú, São Paulo 17210-080, Brazil.

Background: Treatment of metastatic clear cell renal carcinoma (mccRCC) has changed dramatically over the past 20 years, without improvement in the development of biomarkers. Recently, circulating tumor cells (CTCs) have been validated as a prognostic and predictive tool for many solid tumors.

Objective: We evaluated CTCs in blood samples obtained from patients diagnosed with mccRCC.

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Seizures are common in neonates, but there is substantial management variability. The Neonatal Task Force of the International League Against Epilepsy (ILAE) developed evidence-based recommendations about antiseizure medication (ASM) management in neonates in accordance with ILAE standards. Six priority questions were formulated, a systematic literature review and meta-analysis were performed, and results were reported following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) 2020 standards.

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  • This study investigates the genetic factors contributing to inherited lung cancer, focusing on families with germline pathogenic variants (PVs).
  • Over a 5-year period, 141 participants with lung cancer and their relatives were enrolled, revealing a significant Mendelian inheritance pattern of the T790M variant with varied cancer penetrance.
  • The findings highlight a recent common ancestor for the T790M variant primarily found in the southeastern U.S., suggesting the need for targeted screening in at-risk families, as many carriers showed high occurrences of lung cancer and related health issues.
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Background: Co-inhibition of poly(ADP-ribose) polymerase (PARP) and androgen receptor activity might result in antitumour efficacy irrespective of alterations in DNA damage repair genes involved in homologous recombination repair (HRR). We aimed to compare the efficacy and safety of talazoparib (a PARP inhibitor) plus enzalutamide (an androgen receptor blocker) versus enzalutamide alone in patients with metastatic castration-resistant prostate cancer (mCRPC).

Methods: TALAPRO-2 is a randomised, double-blind, phase 3 trial of talazoparib plus enzalutamide versus placebo plus enzalutamide as first-line therapy in men (age ≥18 years [≥20 years in Japan]) with asymptomatic or mildly symptomatic mCRPC receiving ongoing androgen deprivation therapy.

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"Non-metastatic, Castration-resistant Prostate Cancer: Diagnostic and Treatment Recommendations by an Expert Panel from Brazil".

Clin Genitourin Cancer

April 2023

Hospital Beneficência Portuguesa, Departamento de Oncologia, São Paulo, SP, Brasil; Hospital Israelita Albert Einstein, Departamento de Urologia, São Paulo, SP, Brasil. Electronic address:

Introduction: Non-metastatic, castration-resistant prostate cancer (nmCRPC) is an important clinical stage of prostate cancer, prior to morbidity and mortality from clinical metastases. In particular, the introduction of novel androgen-receptor signaling inhibitors (ARSi) has changed the therapeutic landscape in nmCRPC. Given recent developments in this field, we update our recommendations for the management of nmCRPC.

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When to test for COVID-19 using real-time reverse transcriptase polymerase chain reaction: a systematic review.

Int J Infect Dis

October 2022

Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, Brazil; Graduate Program in Biomedical Gerontology, Institute of Geriatrics and Gerontology, Pontifical Catholic University of Rio Grande do Sul (PUCRS) School of Medicine, Porto Alegre, Brazil; Graduate Program in Pediatrics and Child Health, Pontifical Catholic University of Rio Grande do Sul (PUCRS) School of Medicine, Porto Alegre, Brazil. Electronic address:

Objectives: The aim of this study was to evaluate the time in days between symptom onset and first positive real-time reverse transcriptase polymerase chain reaction (RT-PCR) result for COVID-19.

Methods: This systematic review was conducted in the MEDLINE (PubMed), Embase, and Scopus databases using the following descriptors: "COVID-19", "SARS-CoV-2", "coronavirus", "RT-PCR", "real time PCR", and "diagnosis".

Results: The included studies were conducted in 31 different countries and reported on a total of 6831 patients.

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PARP inhibitors in combination with androgen receptor-targeted therapy have demonstrated potential in the treatment of metastatic castration-resistant prostate cancer (mCRPC). Here, we describe the design and rationale of the multinational, phase III, two-part TALAPRO-2 study comparing talazoparib plus enzalutamide versus placebo plus enzalutamide as a first-line treatment for patients with mCRPC with or without DNA damage response (DDR) alterations. This study has two co-primary end points: radiographic progression-free survival (rPFS) by blinded independent clinical review in all-comers (cohort 1) and in patients with DDR alterations (cohort 2).

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Background: Androgen deprivation therapy (ADT) combined with apalutamide, abiraterone acetate plus prednisone, enzalutamide, or docetaxel are the standard treatments for advanced castration-sensitive prostate cancer (CSPC). We investigated ADT-free alternatives for advanced CSPC.

Patients And Methods: LACOG 0415 is a phase 2, open-label, non-comparative, randomized trial.

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Seizures are the most common neurological emergency in the neonatal period and in contrast to those in infancy and childhood, are often provoked seizures with an acute cause and may be electrographic-only. Hence, neonatal seizures may not fit easily into classification schemes for seizures and epilepsies primarily developed for older children and adults. A Neonatal Seizures Task Force was established by the International League Against Epilepsy (ILAE) to develop a modification of the 2017 ILAE Classification of Seizures and Epilepsies, relevant to neonates.

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Aim: Patients with pre-existing autoimmune disease (AID) are typically excluded from clinical trials of immune checkpoint inhibitors, and there are limited data on outcomes in this population. The single-arm international SAUL study of atezolizumab enrolled a broader 'real-world' patient population. We present outcomes in patients with a history of AID.

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Purpose: A CDK4/6 inhibitor (CDK4/6i) combined with endocrine therapy is the standard of care for patients with hormone receptor-positive (HR+) and HER2-negative (HER2-) metastatic breast cancer (MBC). However, the incorporation of these agents into clinical practice remains challenging. This study aims to estimate the impact of the lack of access to ribociclib on mortality of premenopausal patients with MBC in Brazil.

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PD-L1 and p16 Expression in Penile Squamous Cell Carcinoma From an Endemic Region.

Clin Genitourin Cancer

June 2020

PUCRS School of Medicine, Porto Alegre, Brazil; Dana Farber Cancer Institute/Harvard Medical School, Boston, MA; Department of Medical Oncology, Hospital Sao Lucas da PUCRS, Porto Alegre, Brazil.

Background: Penile squamous cell carcinoma (PSCC) is a rare malignancy with higher incidence in developing countries. Treatment options include surgery, radiation therapy, and systemic chemotherapy. However, effective treatments for advanced disease are lacking.

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Background: The phase III EMILIA and TH3RESA trials demonstrated clinical benefits of trastuzumab emtansine (T-DM1) therapy in patients with previously treated HER2-positive metastatic breast cancer (MBC). Data from these and other trials showed that T-DM1-associated survival benefits were observed across biomarker subgroups tested in these trials. Prespecified, exploratory analyses of the phase III MARIANNE study examined the effects of HER2-related biomarkers on PFS in patients administered T-DM1 in the first-line MBC setting.

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Background: Testosterone suppression is the standard treatment for advanced prostate cancer, and it is associated with side-effects that impair patients' quality of life, like sexual dysfunction, osteoporosis, weight gain, and increased cardiovascular risk. We hypothesized that abiraterone acetate with prednisone (AAP) and apalutamide, alone or in combination, can be an effective hormonal therapy also possibly decreasing castration-associated side effects.

Methods: Phase II, open-label, randomized, efficacy trial of abiraterone acetate plus prednisone (AAP) and Androgen Deprivation Therapy (ADT) versus apalutamide versus the combination of AAP (without ADT) and apalutamide.

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The mechanistic target of rapamycin (mTOR) is an established therapeutic target in renal cell carcinoma (RCC). Mechanisms of secondary resistance to rapalog therapy in RCC have not been studied previously. We identified six patients with metastatic RCC who initially responded to mTOR inhibitor therapy and then progressed, and had pre-treatment and post-treatment tumor samples available for analysis.

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