Publications by authors named "Constantine Alifrangis"

Penile cancer (PeCa) is rare, and the oncological outcomes in younger men are unclear. We aimed to analyse and compare oncological outcomes of men age ≤50 years (y) and >50 years with PeCa. A retrospective analysis of men ≤50 y with penile squamous cell carcinoma managed at a tertiary centre was performed.

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Introduction: This study investigated the efficacy and safety of neoadjuvant chemotherapy for locally advance penile squamous cell carcinoma for which current evidence is lacking.

Methods: Included patients had locally advanced penile squamous cell carcinoma with clinical lymph node metastasis treated with at least 1 dose of neoadjuvant chemotherapy prior to planned consolidative lymphadenectomy. Objective response rates were assessed using Response Evaluation Criteria in Solid Tumors v1.

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Objective: To report the oncological survival outcomes of men with penile sarcomatoid squamous cell carcinoma (sSCC).

Patients And Methods: A retrospective analysis of men with penile sSCC diagnosed between January 2010 and January 2020 in a single centre was conducted. Disease-specific (DSS), recurrence-free (RFS) and metastasis-free (MFS) survival were evaluated.

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International Germ Cell Cancer Collaborative Group good-risk metastatic seminoma has cure rates of >95%. Within this risk group, patients with stage II disease exhibit the best oncological outcomes with the standard-of-care treatment strategies of radiotherapy or combination chemotherapy. However, these treatments can be associated with substantial early and late toxic effects.

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Article Synopsis
  • Docetaxel enhances survival in advanced prostate cancer but not all patients respond due to resistance, highlighting the need for effective predictive tests.
  • This study explores the use of circulating tumor cells (CTCs) and their gene expression from blood samples to predict response to docetaxel treatment, overall survival (OS), and progression-free survival (PFS).
  • Findings indicate that pre-treatment CTC detection is linked to worse outcomes, with specific CTC metrics predicting lack of response, shorter OS, and diminished PFS in castration-resistant and metastatic hormone-sensitive prostate cancer patients.
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Objectives: To report the management outcomes of men with ≤20-mm small testicular masses (STMs) and to identify clinical and histopathological factors associated with malignancy.

Patients And Methods: A retrospective analysis of men managed at a single centre between January 2010 and December 2020 with a STM ≤20 mm in size was performed.

Results: Overall, 307 men with a median (interquartile range [IQR]) age of 36 (30-44) years were included.

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Purpose Of Review: Germ-cell tumours of the testis affect predominantly younger males aged between 15 and 40 years, with nearly 74,500 new cases estimated globally in 2020. Their rarity and the complex morphology, mean that, in nonexpert hands, there is a significant risk of misdiagnosis of both type and staging of these neoplasms.

Recent Findings: There have been significant changes in the 2016 WHO classification of Testicular tumours that need to be understood by both pathologists and clinicians for streamlining management.

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Background And Aims: Testicular Germ Cell Tumours (TGCTs) are the commonest young adult male cancer, with excellent survival outcomes even with metastatic disease. Chemotherapy, radiotherapy, and surgery are international guideline-dictated standard of care (SOC) treatments for International Germ Cell Cancer Collaborative Group (IGCCCG) "good risk" TGCT, but are associated with significant toxicities. Therapy de-escalation aims to reduce treatment morbidity whilst preserving cure rates, and has been adopted by some centres for stage IIA/B seminoma.

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Purpose: To describe and compare differences in peri-operative outcomes of robot-assisted (RA-RPLND) and open (O-RPLND) retroperitoneal lymph node dissection performed by a single surgeon where chemotherapy is the standard initial treatment for Stage 2 or greater non-seminomatous germ cell tumour.

Methods: Review of a prospective database of all RA-RPLNDs (28 patients) and O-RPLNDs (72 patients) performed by a single surgeon from 2014 to 2020. Peri-operative outcomes were compared for patients having RA-RPLND to all O-RPLNDs and a matched cohort of patients having O-RPLND (20 patients).

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Background: The option of semen cryopreservation following a diagnosis of testicular cancer shows a variable uptake with the option to cryopreserve before surgery often dependent on the preference of the treating clinician and the fertility laboratory resources available.

Objectives: To assess whether the introduction of a patient-centric pathway for managing suspected testicular cancer increases the uptake of semen cryopreservation and the impact of this on surgical waiting times.

Materials And Methods: A multicentre retrospective analysis of patients treated as part of a patient-centric pathway was conducted for suspected testicular cancer at two specialist centres within a one-stop testicular clinic.

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Article Synopsis
  • Castration-resistant prostate cancer (CRPC) is a leading cause of death from prostate cancer, and identifying biomarkers could improve early detection and treatment outcomes.
  • The study analyzed plasma exosomal miRNAs in 24 treatment-naive prostate cancer patients and 24 CRPC patients, ultimately identifying six differentially expressed miRNAs through RNA-sequencing and RT-qPCR.
  • Among these, miR-423-3p emerged as a significant biomarker for predicting CRPC, especially when combined with prostate-specific antigen (PSA), showing strong performance in validation cohorts with high area under the ROC curve (AUC) values.
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Objectives: To develop an international consensus on managing penile cancer patients during the COVID-19 acute waves. A major concern for patients with penile cancer during the coronavirus disease 2019 (COVID-19) pandemic is how the enforced safety measures will affect their disease management. Delays in diagnosis and treatment initiation may have an impact on the extent of the primary lesion as well as the cancer-specific survival because of the development and progression of inguinal lymph node metastases.

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Pathological risk factors for metastatic disease in patients with testicular non-seminomatous germ cell tumors are debated. The tumor-node-metastasis (TNM) classification eighth edition for testicular cancers includes divergent versions, by the International Union Against Cancer (UICC) and by the American Joint Committee for cancer (AJCC). We investigated pathological predictors of metastatic disease at presentation in 219 non-seminomatous germ cell tumors with reference to both classifications.

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Background: Radiotherapy and cisplatin-based combination chemotherapy are accepted standard-of-care treatments for metastatic seminoma with excellent survival outcomes but with established short- and long-term morbidity. Carboplatin monotherapy may be a less toxic alternative; however early historic studies at AUC7 showed inferior outcomes.

Objectives: To evaluate multi-institutional data on and toxicity and longer-term survival for metastatic seminoma patients treated with the single-agent carboplatin AUC10.

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Background: The germ cell supranetwork multidisciplinary team (SMDT) for the Anglian Network covers a population of 7.5 million.

Methods: We reviewed 10 years of SMDT discussion and categorised them into five domains ((1) overall outcome, (2) chemotherapy regimens-untreated disease and salvage therapy, (3) radiology, (4) pathology and (5) complex cases) to assess the impact of the SMDT.

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Objective: To investigate whether the use of a steroid-sparing antiemetic protocol (substituting dexamethasone with olanzapine) affects the incidence of neutropenia and associated hospital admissions in patients receiving bleomycin, etoposide and cisplatin (BEP) chemotherapy.

Patients And Methods: Records from 108 patients who received BEP at St Bartholomew's Hospital, London were divided into two groups according to antiemetic regimen. Group 1 (treated 2008-2013) were treated with a steroid-containing antiemetic protocol and group 2 (treated 2014-2017) were treated according to a steroid-sparing protocol, i.

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Circulating tumor-derived DNA (ctDNA) can be used to monitor cancer dynamics noninvasively. Detection of ctDNA can be challenging in patients with low-volume or residual disease, where plasma contains very few tumor-derived DNA fragments. We show that sensitivity for ctDNA detection in plasma can be improved by analyzing hundreds to thousands of mutations that are first identified by tumor genotyping.

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Background: Late relapse (LR) in testicular cancer is defined as disease recurrence more than 2yr after primary treatment. Optimal management for this rare group is unknown.

Objective: To identify prognostic factors relevant to outcomes in a large LR series following primary treatment with platinum-based chemotherapy.

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Background: Androgen-deprivation therapy is the mainstay of treatment for metastatic prostate cancer. Corticosteroids and estrogens are also useful agents in castration-resistant prostate cancer (CRPC). However, oral estrogens are associated with thromboembolic events, which limits their use, and transdermal estrogens may offer a safer alternative.

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Cancer-specific survival rates in patients with learning difficulties (LD) are poorer than the general population. Issues such as delayed diagnosis, compliance, consent and needs for individualised care and support requirements can make it more demanding to manage these patients in a busy clinical environment. Our case highlights a patient with learning disabilities who presented with advanced testicular cancer due to delayed detection, and the challenges needing consideration to ensure such patients receive good care.

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Objective: To report a single-centre experience of the regimen GAMEC (granulocyte colony-stimulating factor, actinomycin-D, methotrexate with folinic acid rescue, etoposide and cisplatin) over 18 years in both untreated disease and relapse settings.

Methods: This retrospective cohort study was based on 162 patients who received GAMEC dose-dense chemotherapy incorporating actinomycin and high dose methotrexate. Survival outcomes were compared.

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Management of clinical stage (CS) 1 testicular seminoma is controversial. Treatment choice is based on a number of pathological risk factors. However, they have been inconsistently associated with risk of metastatic disease.

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