Publications by authors named "Huddart R"

The phase 3 NIAGARA trial demonstrated a statistically significant improvement in event-free and overall survival in cisplatin-eligible patients with muscle-invasive bladder cancer treated with perioperative durvalumab in combination with neoadjuvant chemotherapy, compared to neoadjuvant chemotherapy alone. The combination was manageable and did not adversely impact surgery. NIAGARA positions perioperative durvalumab with chemotherapy as a potential new standard of care.

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Background: In PIVOT-02, bempegaldesleukin (BEMPEG), a pegylated interleukin-2 cytokine prodrug, in combination with nivolumab (NIVO), a Programmed cell death protein 1 inhibitor, demonstrated the potential to provide additional benefits over immune checkpoint inhibitor monotherapy in patients with urothelial carcinoma, warranting further investigation. We evaluated BEMPEG plus NIVO in cisplatin-ineligible patients with previously untreated locally advanced or metastatic urothelial carcinoma.

Methods: This open-label, multicenter, single-arm, phase II study enrolled patients with locally advanced/surgically unresectable or metastatic urothelial carcinoma and who were ineligible for cisplatin-based treatment.

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Background And Objective: Delivering radiotherapy to the bladder is challenging as it is a mobile, deformable structure. Dose-escalated adaptive image-guided radiotherapy could improve outcomes. RAIDER aimed to demonstrate the safety of such a schedule.

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Introduction: This work reports on a systematic approach to select MRI sequences, quantify inter-observer image registration variation and determine patient positioning for the clinical implementation of MR-guided adaptive radiotherapy (MRgRT) in patients with oropharyngeal (H&N) and lung cancer.

Methods: A total of 30 participants (N=10 H&N and N=10 lung cancer patients and N=10 healthy participants) were scanned on the Elekta Unity Magnetic Resonance Linear Accelerator (MRL). Participant experience questionnaires were used to determine the most appropriate positioning device for lung treatments and tolerability of H&N immobilization devices within the confined MR Linac environment.

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No study has comprehensively examined associated factors (adverse health outcomes, health behaviors, and demographics) affecting cognitive function in long-term testicular cancer survivors (TC survivors). TC survivors given cisplatin-based chemotherapy completed comprehensive, validated surveys, including those that assessed cognition. Medical record abstraction provided cancer and treatment history.

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Treatment de-escalation strategies in patients with seminoma with retroperitoneal metastases are being investigated in ongoing clinical trials. Primary retroperitoneal lymph node dissection conducted by expert surgeons may avoid any cytotoxic treatment and related long-term side effects in ≥70% of patients with clinical stage IIA/B seminoma.

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  • The study aimed to identify the maximum tolerated dose (MTD) for treating muscle invasive bladder cancer using image-guided adaptive radiation therapy while monitoring long-term clinical outcomes.
  • A total of 59 patients with specific stages of bladder cancer participated, with their tumors receiving doses ranging from 68 to 72 Gy, and the MTD was found to be 70 Gy.
  • Results showed that 5-year overall survival was 58%, and the bladder preservation rate was high at 89%, with minimal severe acute toxicities reported.
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  • Radiotherapy trial quality assurance (RT QA) is essential for ensuring safe and consistent radiation treatment across different institutions, focusing on adaptive methods like Image-Guided Radiotherapy (IGRT) in the RAIDER trial for bladder cancer.
  • This study analyzed data from 72 participants over 884 Cone-Beam Computed Tomography (CBCT) scans to compare online and offline treatment plan selections, revealing an overall concordance rate of 83%.
  • Results showed an improvement in concordance from 75% in the first stage of the trial to 91% in the second stage, emphasizing the importance of ongoing QA support during the introduction of new radiotherapy techniques.
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  • Taxane-based chemotherapy, specifically paclitaxel, is commonly used for treating platinum- and immunotherapy refractory metastatic urothelial carcinoma (mUC), but survival outcomes are generally poor and biomarkers for predicting outcomes are lacking.
  • A study was conducted using whole-transcriptome profiles from patients enrolled in a trial (PLUTO) to evaluate gene signatures related to survival, focusing on factors like immuno-oncology, angiogenesis, and genome instability.
  • Results indicated that patients with high expressions of genome instability and evading growth suppressors experienced significantly better progression-free survival (PFS) and overall survival (OS), while activation of angiogenesis was associated with worse outcomes across both treatment cohorts.
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Beta-blockers are widely used medications for a variety of indications, including heart failure, myocardial infarction, cardiac arrhythmias, and hypertension. Genetic variability in pharmacokinetic (e.g.

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Background: Moderately hypofractionated radiotherapy regimens or stereotactic body radiotherapy (SBRT) are standard of care for localised prostate cancer. However, some patients are unable or unwilling to travel daily to the radiotherapy department and do not have access to, or are not candidates for, SBRT. For many years, The Royal Marsden Hospital NHS Foundation Trust has offered a weekly ultra-hypofractionated radiotherapy regimen to the prostate (36 Gy in 6 weekly fractions) to patients unable/unwilling to travel daily.

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  • Atezolizumab was assessed for its safety in a diverse group of patients with pretreated urinary tract carcinoma (UTC) in the SAUL study, which included those typically excluded from clinical trials.
  • The study involved 1004 patients and found that 68 patients continued treatment for over 4 years, with 16% experiencing serious treatment-related adverse events.
  • Long-term results show a median overall survival of 8.6 months, with 14% of patients surviving more than 4 years, indicating the drug's potential benefits in real-world settings with complex patient profiles.
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Aims: To resolve the ongoing controversy surrounding the impact of teratoma (TER) in the primary among patients with metastatic testicular non-seminomatous germ-cell tumours (NSGCT).

Patients And Methods: Using the International Germ Cell Cancer Collaborative Group (IGCCCG) Update Consortium database, we compared the survival probabilities of patients with metastatic testicular GCT with TER (TER) or without TER (NTER) in their primaries corrected for known prognostic factors. Progression-free survival (5y-PFS) and overall survival at 5 years (5y-OS) were estimated by the Kaplan-Meier method.

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  • BC2001 study investigated the impact of combining chemotherapy with radiotherapy to improve survival rates in patients with muscle-invasive bladder cancer (MIBC), focusing on a 24-gene hypoxia-associated signature to identify potential treatment benefits.
  • Analysis revealed that the level of hypoxia in tumors did not significantly influence the effectiveness of chemotherapy in BC2001, and both high and low hypoxia scores experienced similar outcomes.
  • The study found that while high hypoxia scores correlated with worse invasive loco-regional control with hypofractionated radiotherapy, this effect was not observed in patients receiving conventional radiotherapy.
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Background: Erdafitinib is an oral pan-fibroblast growth factor receptor (FGFR) tyrosine kinase inhibitor approved to treat locally advanced/metastatic urothelial carcinoma (mUC) in patients with susceptible FGFR3/2 alterations (FGFRalt) who progressed after platinum-containing chemotherapy. FGFR-altered tumours are enriched in luminal 1 subtype and may have limited clinical benefit from anti-programmed death-(ligand) 1 [PD-(L)1] treatment. This cohort in the randomized, open-label phase III THOR study assessed erdafitinib versus pembrolizumab in anti-PD-(L)1-naive patients with mUC.

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Background: Erdafitinib is a pan-fibroblast growth factor receptor (FGFR) inhibitor approved for the treatment of locally advanced or metastatic urothelial carcinoma in adults with susceptible alterations who have progression after platinum-containing chemotherapy. The effects of erdafitinib in patients with -altered metastatic urothelial carcinoma who have progression during or after treatment with checkpoint inhibitors (anti-programmed cell death protein 1 [PD-1] or anti-programmed death ligand 1 [PD-L1] agents) are unclear.

Methods: We conducted a global phase 3 trial of erdafitinib as compared with chemotherapy in patients with metastatic urothelial carcinoma with susceptible alterations who had progression after one or two previous treatments that included an anti-PD-1 or anti-PD-L1.

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Background: Active surveillance after orchiectomy is the preferred management in clinical stage I (CSI) germ-cell tumours (GCT) associated with a 15 to 30% relapse rate.

Patients And Methods: In the IGCCCG Update database, we compared the outcomes of gonadal disseminated GCT relapsing from initial CSI to outcomes of patients with de novo metastatic GCT.

Results: A total of 1014 seminoma (Sem) [298 (29.

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Background: Bladder and urinary tract cancers account for approximately 21,000 new diagnoses and 5,000 deaths annually in the UK. Approximately 90% are transitional cell carcinomas where advanced disease is treated with platinum based chemotherapy and PD-1/PD-L1 directed immunotherapy. Urinary tract squamous cell carcinoma (UTSCC) accounts for about 5% of urinary tract cancers overall making this a rare disease.

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Article Synopsis
  • - Proper classification of metastatic germ-cell cancers, particularly nonseminoma, relies on serum tumor marker (STM) levels measured before chemotherapy rather than before orchiectomy (surgical removal of the testicle).
  • - A study involving 744 men revealed that using preorchiectomy STM levels could lead to misclassification in 22% of cases, potentially resulting in 16% of patients receiving overtreatment and 6% receiving undertreatment.
  • - This highlights the importance of accurate STM testing timing, as using the wrong levels can hinder treatment effectiveness and expose patients to unnecessary side effects.
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Hybrid systems that combine Magnetic Resonance Imaging (MRI) and linear accelerators are available clinically to guide and adapt radiotherapy. Vendor-approved MRI sequences are provided, however alternative sequences may offer advantages. The aim of this study was to develop a systematic approach for non-vendor sequence evaluation, to determine safety, accuracy and overall clinical application of two potential sequences for bladder cancer MRI guided radiotherapy.

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  • The study investigated the variability in contouring the prostate bed clinical target volume (CTV) on MRI among radiation oncologists, aiming to establish baseline interobserver variability (IOV) and create international consensus guidelines.
  • Sixteen oncologists analyzed three MRI scans, revealing significant differences in contouring before guidelines were developed, with notable variability in overlap, distance, and volume metrics.
  • After creating consensus guidelines, IOV improved, showing a decrease in maximum volume ratio and volume coefficient of variation, alongside an increase in the Dice similarity coefficient.
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  • Adding concurrent chemotherapy to radiotherapy enhances treatment outcomes for patients with muscle-invasive bladder cancer, with a meta-analysis indicating better disease control with a hypofractionated schedule.
  • The RAIDER clinical trial compared standard and adaptive radiotherapy in patients with unifocal bladder cancer, assessing acute toxicity based on therapy and fractionation schedules.
  • Results showed that individuals receiving concomitant therapy experienced significantly higher rates of acute grade 2+ gastrointestinal toxicity in the 20-fraction group, but not in the 32-fraction group, highlighting differences in toxicity based on treatment regimens.
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