Publications by authors named "Simon D Roger"

Introduction: Clinical practice guidelines suggest maintaining adequate hydration in people with autosomal dominant polycystic kidney disease (ADPKD). However, the long-term perceptions of increasing water intake and the role of self-efficacy tools are unknown.

Methods: Participants randomized to the increased water intake arm in a 3-year trial were purposively sampled and invited to semistructured interviews at the end of the study.

View Article and Find Full Text PDF

Importance: Uncontrolled hypertension remains a global health concern and dysregulated aldosterone production is a central mechanism. Lorundrostat, a novel aldosterone synthase inhibitor that reduces aldosterone production, demonstrated efficacy in participants with uncontrolled hypertension, including those with treatment-resistant hypertension.

Objective: To evaluate the efficacy and safety of lorundrostat for lowering blood pressure (BP) when added to a prescribed regimen of 2 to 5 antihypertensive medications in adults with uncontrolled hypertension and treatment-resistant hypertension.

View Article and Find Full Text PDF

Aim: Efepoetin alfa, a novel long-acting erythropoietin (EPO)-hybrid Fc fusion protein, represents a promising erythropoiesis-stimulating agent (ESA) for addressing anaemia in chronic kidney disease (CKD) patients. This Phase 3 trial was to assess the efficacy and tolerability of subcutaneous efepoetin alfa in comparison to subcutaneous methoxy polyethylene glycol-epoetin beta in stage 3 or 4 CKD patients.

Methods: A randomised, multicentre, open-label Phase 3 trial enrolled 391 CKD stage 3 or stage 4 patients.

View Article and Find Full Text PDF

Background: Treatment strategies for BK polyomavirus (BKPyV) infection in kidney transplant recipients are heterogeneous among clinicians. We aimed to identify the treatment preferences of key stakeholders for BKPyV infection and measure the trade-offs between treatment outcomes.

Methods: Adult kidney transplant recipients, caregivers, and clinicians were eligible to participate in a discrete choice experiment between February 2021 and June 2022.

View Article and Find Full Text PDF

Background: The aim of this study was to determine the long-term effect of increasing water intake in patients with autosomal dominant polycystic kidney disease (ADPKD) on longitudinal changes in health-related quality of life (HRQoL) in the setting of a clinical trial.

Methods: Self-completed HRQoL (using the KDQoL-SF, v.1.

View Article and Find Full Text PDF

Rationale & Objective: The development of new therapies for autosomal dominant polycystic kidney disease requires clinical trials to be conducted efficiently. In this study, the factors affecting the recruitment and retention of participants enrolled in a 3-year randomized controlled trial in autosomal dominant polycystic kidney disease were investigated.

Study Design: Qualitative study.

View Article and Find Full Text PDF

BACKGROUND: Arginine vasopressin promotes kidney cyst growth in autosomal dominant polycystic kidney disease (ADPKD). Increased water intake reduces arginine vasopressin and urine osmolality and may slow kidney cyst growth. METHODS: In this randomized controlled 3-year clinical trial, we randomly assigned adults with ADPKD who had a height-corrected total kidney volume in Mayo imaging subclass categories 1B to 1E and an estimated glomerular filtration rate of 30 ml/min/1.

View Article and Find Full Text PDF

Rationale & Objective: The risk of developing colorectal cancer in patients with chronic kidney disease (CKD) is twice that of the general population, but the factors associated with colorectal cancer are poorly understood. The aim of this study was to identify factors associated with advanced colorectal neoplasia in patients with CKD.

Study Design: Prospective cohort study.

View Article and Find Full Text PDF

Introduction: Roxadustat is an oral hypoxia-inducible factor prolyl hydroxylase inhibitor that stimulates erythropoiesis and improves iron metabolism. We assessed the efficacy and tolerability of roxadustat in patients with chronic kidney disease (CKD)-related anemia not on dialysis.

Methods: ANDES was a global Phase 3 randomized study in which adults with stage 3-5 CKD not on dialysis received roxadustat or placebo.

View Article and Find Full Text PDF

Introduction: People with chronic kidney disease (CKD) experience reduced quality of life (QoL) because of the high symptom and treatment burden. Limited data exist on the factors associated with overall and domain-specific QoL across all CKD stages.

Methods: Using data from a prospective, multinational study (Australia, New Zealand, Canada, and Spain) in 1696 participants with CKD, we measured overall and domain-specific QoL (pain, self-care, activity, mobility, anxiety/depression) using the EuroQoL, 5 dimension, 3 level.

View Article and Find Full Text PDF

Hyperkalemia is an electrolyte abnormality with potentially life-threatening consequences. Despite various guidelines, no universally accepted consensus exists on best practices for hyperkalemia monitoring, with variations in precise potassium (K) concentration thresholds or for the management of acute or chronic hyperkalemia. Based on the available evidence, this review identifies several critical issues and unmet needs with regard to the management of hyperkalemia.

View Article and Find Full Text PDF

The excess intake of dietary sodium is a key modifiable factor for reducing disease progression in autosomal dominant polycystic kidney disease (ADPKD). The aim of this study was to test the hypothesis that the scored salt questionnaire (SSQ; a frequency questionnaire of nine sodium-rich food types) is a valid instrument to identify high dietary salt intake in ADPKD. The performance of the SSQ was evaluated in adults with ADPKD with an estimated glomerular filtration rate (eGFR) ≥ 30 mL/min/1.

View Article and Find Full Text PDF

Background: Sodium zirconium cyclosilicate (SZC) binds potassium and ammonium in the gastrointestinal tract. In addition to serum potassium reduction, Phase 2 trial data have shown increased serum bicarbonate with SZC, which may be clinically beneficial because maintaining serum bicarbonate ≥22 mmol/L preserves kidney function. This exploratory analysis examined serum bicarbonate and urea, and urine pH data from three SZC randomized, placebo-controlled Phase 3 studies among patients with hyperkalaemia [ZS-003 (n = 753), HARMONIZE (n = 258) and HARMONIZE-Global (n = 267)].

View Article and Find Full Text PDF

Background: Sodium zirconium cyclosilicate (SZC; formerly ZS-9) is a selective potassium (K+) binder for the treatment of adults with hyperkalaemia. This post hoc analysis of an open-label, single-arm trial (NCT02163499) compared SZC efficacy and safety >12 months among outpatients with hyperkalaemia and Stages 4 and 5 chronic kidney disease (CKD) versus those with Stages 1-3 CKD.

Methods: Adults with serum K+ ≥5.

View Article and Find Full Text PDF

Background: Sodium zirconium cyclosilicate (SZC; formerly ZS-9) is a selective potassium (K+) binder for treatment of hyperkalemia. An open-label extension (OLE) of the -HARMONIZE study evaluated efficacy and safety of SZC for ≤11 months.

Methods: Patients from HARMONIZE with point-of-care device i-STAT K+ 3.

View Article and Find Full Text PDF

Background And Objectives: Oral sodium zirconium cyclosilicate (formerly ZS-9) binds and removes potassium the gastrointestinal tract. Sodium zirconium cyclosilicate-associated restoration and maintenance of normokalemia and adverse events were evaluated in a two-part, open label, phase 3 trial.

Design, Setting, Participants, & Measurements: In the correction phase, adult outpatients with plasma potassium ≥5.

View Article and Find Full Text PDF

Background: In patients with CKD, the risk of developing colorectal cancer is high and outcomes are poor. Screening using fecal immunochemical testing (FIT) is effective in reducing mortality from colorectal cancer, but performance characteristics of FIT in CKD are unknown.

Methods: To determine the detection rates and performance characteristics of FIT for advanced colorectal neoplasia (ACN) in patients with CKD, we used FIT to prospectively screen patients aged 35-74 years with CKD (stages 3-5 CKD, dialysis, and renal transplant) from 11 sites in Australia, New Zealand, Canada, and Spain.

View Article and Find Full Text PDF
Article Synopsis
  • * A specific case of a young woman with clubbing related to laxative abuse is presented, along with a review of similar instances in the literature.
  • * The conclusion emphasizes the need to consider laxative abuse when assessing clubbing in individuals prone to eating disorders, to avoid unnecessary medical investigations and better address the underlying eating disorder.
View Article and Find Full Text PDF

Introduction: Maintaining fluid intake sufficient to reduce arginine vasopressin (AVP) secretion has been hypothesised to slow kidney cyst growth in autosomal dominant polycystic kidney disease (ADPKD). However, evidence to support this as a clinical practice recommendation is of poor quality. The aim of the present study is to determine the long-term efficacy and safety of prescribed water intake to prevent the progression of height-adjusted total kidney volume (ht-TKV) in patients with chronic kidney disease (stages 1-3) due to ADPKD.

View Article and Find Full Text PDF

Clinical practice guidelines provide both local and global recommendations for the use of iron therapy in the management of anaemia in patients with chronic kidney disease. However, physicians must interpret and adapt these guidelines to meet the specific needs of their individual patients. The recommendations must also be considered in the context of findings from more recently published clinical trials and observational studies.

View Article and Find Full Text PDF

Aims: To evaluate erythropoietic response rates to oral iron over time in iron-deficient anemic patients with nondialysis-dependent chronic kidney disease (ND-CKD).

Materials And Methods: FIND-CKD was a 1-year, randomized, multicenter trial of iron therapy in patients with ND-CKD, anemia, and iron deficiency, without erythropoiesis-stimulating agent (ESA) therapy. Patients with active infection or C-reactive protein > 20 mg/L were excluded.

View Article and Find Full Text PDF