Publications by authors named "Frederik C Roos"

Background: Only one previously published study by Nocera et al. addressed the risk of upstaging to ≥pT3 in cT1 clear cell renal cell carcinoma (ccRCC) by using characteristics of the R.E.

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Background: Nectin-4 contributes to tumor proliferation, lymphangiogenesis and angiogenesis in malignant tumors and is an emerging target in tumor therapy. In renal cell carcinoma (RCC) VEGF-directed tyrosine kinase inhibitors and checkpoint inhibitors are currently treatments of choice. Enfortumab vedotin-ejf (EV) is an antibody drug conjugate that targets Nectin-4.

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Introduction: Programmed death-1 ligand (PD-L1) has been often studied in different types of renal-cell carcinoma (RCC). For example, in clear-cell renal carcinoma it is well established that programmed death-1 receptor and PD-L1 are important prognostic markers. In contrast, the role of programmed death-2 ligand (PD-L2) as prognostic marker remains unclear.

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Prostate specific membrane antigen (PSMA) is an emerging diagnostic and therapeutic target in prostate cancer. Ga-PSMA-labeled hybrid imaging is used for the detection of prostate primary tumors and metastases. Therapeutic applications such as Lutetium-177 PSMA radionuclide therapy or bispecific antibodies that target PSMA are currently under investigation within clinical trials.

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Background: Claudins are promising biomarkers for diagnosis and prognosis or targets for treatment. They play a major role in signal transduction and are important in nearly all aspects of tumorigenesis. Claudin 6 is a member of the claudin family and is part of the tight junction molecule.

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Article Synopsis
  • The tyrosine-protein kinase c-Met is a proto-oncogene implicated in tumor aggressiveness, but its role as a prognostic factor in papillary RCC (pRCC) remains unclear.
  • In a study involving patients with type 1 and 2 pRCC, cMET expression was evaluated, revealing no significant differences in five-year overall survival rates based on cMET positivity.
  • However, subgroup analyses indicated that cMET expression was associated with T stage and metastasis specifically in type 2 pRCC, where cMET-positive patients had a higher rate of metastases.
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Objective: To test 1) contemporary pelvic lymph node dissection (PLND) trends at radical cystectomy (RC) in variant histology bladder cancer (VHBC) patients and urothelial carcinoma of the urinary bladder (UCUB), as well as 2) to test the effect of PLND extent on cancer specific mortality (CSM) after RC.

Methods: Within the Surveillance, Epidemiology and End Results Registry (SEER, 2004-2016), we identified non-metastatic stage T or T VHBC and UCUB patients, who underwent RC. CSM and lymph node invasion (LNI) rates were stratified according to PLND extent, as well as coded continuously in multivariate Cox and logistic regression models.

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Background: This study aims to test the effect of the 10 most common nonurological primary cancers (skin, rectal, colon, lymphoma, leukemia, pancreas, stomach, esophagus, liver, lung) on overall mortality (OM) after secondary prostate cancer (PCa).

Material And Methods: Within the Surveillance, Epidemiology, and End Results (SEER) database, patients with 10 most common primary cancers and concomitant secondary PCa (diagnosed 2004-2016) were identified and were matched in 1:4 fashion (age, year at diagnosis, race/ethnicity, treatment type, TNM stage) with primary PCa controls. OM was compared between secondary and primary PCa patients and was stratified according to primary cancer type, as well as according to time interval between primary cancer secondary PCa diagnoses.

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Purpose: This study aimed to evaluate the impact of preoperative double-J stent (DJ) in pyeloplasty patients on perioperative complications, recurrence, and quality of life (QoL).

Methods: Pyeloplasties due to ureteropelvic junction obstructions between January 2010 and December 2020 were consecutively identified. A standardized follow-up questionnaire was used.

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Purpose: To compare Cancer-specific mortality (CSM) in patients with Squamous cell carcinoma (SCC) vs. non-SCC penile cancer, since survival outcomes may differ between histological subtypes.

Methods: Within the Surveillance, Epidemiology and End Results database (2004-2016), penile cancer patients of all stages were identified.

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Background: To test the effect of urological primary cancers (bladder, kidney, testis, upper tract, penile, urethral) on overall mortality (OM) after secondary prostate cancer (PCa).

Methods: Within the Surveillance, Epidemiology and End Results (SEER) database, patients with urological primary cancers and concomitant secondary PCa (diagnosed 2004-2016) were identified and were matched in 1:4 fashion with primary PCa controls. OM was compared between secondary and primary PCa patients and stratified according to primary urological cancer type, as well as to time interval between primary urological cancer versus secondary PCa diagnoses.

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Objective: We aimed to assess the correlation between serum prostate-specific antigen (PSA) and tumor burden in prostate cancer (PCa) patients undergoing radical prostatectomy (RP), because estimation of tumor burden is of high value, e.g., in men undergoing RP or with biochemical recurrence after RP.

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Background: The efficacy of tyrosine kinase inhibitor (TKI)-based therapy after previous immuno-oncology therapy (IO) failure has been addressed before. However, summary efficacy estimates have never been generated in these reports. We addressed this void.

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Background: Number of positive prostate biopsy cores represents a key determinant between high versus very high-risk prostate cancer (PCa). We performed a critical appraisal of the association between the number of positive prostate biopsy cores and CSM in high versus very high-risk PCa.

Methods: Within Surveillance, Epidemiology, and End Results database (2010-2016), 13,836 high versus 20,359 very high-risk PCa patients were identified.

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Background: Controversy still exists regarding efficacy of multimodality treatment (MMT) vs. radical cystectomy (RC) for urothelial carcinoma of the urinary bladder (UCUB).

Methods: Within the SEER database (2004-2016), we retrospectively identified patients with stage T2N0M0 UCUB.

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Background: Previous cancer-specific mortality (CSM) analyses for different Gleason patterns in Gleason grade group (GGG) 5 cancer were limited by sample size.

Objective: To test for differences in CSM according to biopsy GG 5 patterns (4 + 5 vs 5 + 4 vs 5 + 5) among patients undergoing radical prostatectomy (RP) or external beam radiation therapy (EBRT).

Design, Setting, And Participants: Patients in the Surveillance, Epidemiology and End Results database treated with RP and EBRT (2004-2016) were identified and stratified according to Gleason 4 + 5 versus 5 + 4 versus 5 + 5.

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Context: Novel prospective randomized controlled observations addressing combination therapy in metastatic hormone-sensitive prostate cancer (mHSPC) have demonstrated promising overall survival (OS) outcomes.

Objective: To compare these novel findings and systematically review and address them within formal network meta-analyses (NMAs) that include observations from other prospective randomized controlled trials (RCTs).

Evidence Acquisition: First, we focused on abiraterone, enzalutamide, apalutamide, and docetaxel effects on OS in mHSPC using the PRISMA methodology.

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To investigate temporal trends in prostate cancer (PCa) radical prostatectomy (RP) candidates. Patients who underwent RP for PCa between January 2014 and December 2019 were identified form our institutional database. Trend analysis and logistic regression models assessed RP trends after stratification of PCa patients according to D'Amico classification and Gleason score.

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Article Synopsis
  • The study aimed to evaluate how anatomical variants of the prostatic apex and median urethral sphincter length on preoperative mpMRI affect early urinary continence in patients undergoing prostate surgeries.
  • It analyzed 128 patients who had mpMRI before either open or robotic-assisted radical prostatectomy, correlating their anatomical features with continence outcomes measured by the PAD-test.
  • Findings indicated that certain anatomical types (Lee type C and D) and longer median urethral sphincter lengths significantly predicted better chances of very early continence post-surgery.
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Background: The distribution of metastatic sites in upper tract urothelial carcinoma (UTUC) is not well-known. Consequently, the effects of sex and age on the location of metastases is also unknown. This study sought to investigate age- and sex-related differences in the distribution of metastases in patients with UTUC.

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Article Synopsis
  • The study examines the effectiveness of cefpodoxime compared to fluoroquinolones for antibiotic prophylaxis in transrectal prostate biopsies in a sample of 442 patients.
  • Both groups had similar baseline characteristics and experienced low rates of infectious complications, with cefpodoxime showing a 2.0% rate and fluoroquinolones at 0.9%, indicating no significant difference in safety.
  • The research suggests that cefpodoxime may be a viable alternative to fluoroquinolones as prophylaxis for these procedures, given the comparable outcomes and low complication rates.
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Purpose: To evaluate stage at presentation and cancer-specific mortality (CSM) in upper urinary tract tumors according to histologic subtype.

Methods: Within the Surveillance, Epidemiology, and End Results registry (SEER, 2004-2016), we identified patients with upper urinary tract tumors with pure variant histology (UTVH) and pure upper urinary tract urothelial carcinoma (UTUC). Cumulative incidence plots, after propensity score matching for tumor and patient characteristics, addressed CSM.

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Objective: Relative to urban populations, rural patients may have more limited access to care, which may undermine timely bladder cancer (BCa) diagnosis and even survival.

Methods: We tested the effect of residency status (rural areas [RA < 2500 inhabitants] vs. urban clusters [UC ≥ 2500 inhabitants] vs.

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Many patients with localized prostate cancer (PCa) do not immediately undergo radical prostatectomy (RP) after biopsy confirmation. The aim of this study was to investigate the influence of "time-from-biopsy-to- prostatectomy" on adverse pathological outcomes. Between January 2014 and December 2019, 437 patients with intermediate- and high risk PCa who underwent RP were retrospectively identified within our prospective institutional database.

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Background: Stage-specific guideline recommendations are lacking for chemotherapy in micropapillary carcinoma of the urinary bladder (MCUB).

Objective: To test the efficacy of stage-specific chemotherapy for MCUB.

Design, Setting, And Participants: Within the Surveillance, Epidemiology and End Results (SEER) registry (2001-2016), we identified patients with MCUB and pure urothelial carcinoma of the urinary bladder (UCUB) of all stages.

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