Publications by authors named "Isitt J"

Aims/hypothesis: The aim of this study was to assess the long-term cost-effectiveness of Dexcom G6 real-time continuous glucose monitoring (rtCGM) with alert functionality compared with FreeStyle Libre 1 intermittently scanned continuous glucose monitoring (isCGM) without alerts in adults with type 1 diabetes in Belgium.

Methods: The IQVIA CORE Diabetes Model was used to estimate cost-effectiveness. Input data for the simulated baseline cohort were sourced from the randomised ALERTT1 trial (ClinicalTrials.

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Article Synopsis
  • Real-time continuous glucose monitoring (rt-CGM) leads to lower glycated hemoglobin (A1c) levels and reduced hypoglycemia compared to self-monitoring of blood glucose (SMBG) for insulin-treated Type 2 diabetes patients.
  • An analysis of health and economic outcomes in Canada found that using rt-CGM resulted in higher lifetime costs (CAD 207,466) but also better quality-adjusted life expectancy (9.97 QALYs) compared to SMBG (CAD 189,863 and 9.02 QALYs, respectively).
  • The incremental cost-utility ratio (ICUR) for rt-CGM was CAD 18,523 per QALY gained, suggesting that rt-CGM is likely a
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Introduction: Real-time continuous glucose monitoring (rt-CGM) involves the measurement and display of glucose concentrations, potentially improving glucose control among insulin-treated patients with type 2 diabetes (T2D). The present analysis aimed to conduct a cost-effectiveness analysis of rt-CGM versus self-monitoring of blood glucose (SMBG) based on a USA retrospective cohort study in insulin-treated people with T2D adapted to the UK.

Methods: Long-term costs and clinical outcomes were estimated using the CORE Diabetes Model, with clinical input data sourced from a retrospective cohort study.

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Introduction: Real-time continuous glucose monitoring (rt-CGM) allows patients with diabetes to adjust insulin dosing, potentially improving glucose control. This study aimed to compare the long-term cost-effectiveness of the Dexcom G6 rt-CGM device versus self-monitoring of blood glucose (SMBG) and flash glucose monitoring (FGM) in Australia in people with type 1 diabetes (T1D).

Methods: Long-term costs and clinical outcomes were estimated using the CORE Diabetes Model.

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Background: The Dexcom G6 real-time continuous glucose monitoring (RT-CGM) system is one of the most sophisticated RT-CGM systems developed to date and became available in Canada in 2019. A health economic analysis was performed to determine the long-term cost-effectiveness of the Dexcom G6 RT-CGM system versus SMBG in adults with type 1 diabetes (T1D) in Canada.

Methods: The analysis was performed using the IQVIA Core Diabetes Model.

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Introduction: The aim was to determine the long-term cost-effectiveness of the Dexcom G6 real-time continuous glucose monitoring (RT-CGM) system versus self-monitoring of blood glucose (SMBG) in adults with type 1 diabetes (T1D) in France.

Methods: The analysis was performed using the IQVIA Core Diabetes Model and utilized clinical input data from the DIAMOND clinical trial in adults with T1D. Simulated patients were assumed to have a mean baseline HbA1c of 8.

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Objective: A long-term health economic analysis was performed to establish the cost-effectiveness of real-time continuous glucose monitoring (RT-CGM) (Dexcom G6) versus self-monitoring of blood glucose (SMBG) alone in U.K.-based patients with type 1 diabetes (T1D).

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Background: We previously initiated a randomized controlled trial to test the effectiveness of two self-referral reminders and a theory-based leaflet (sent 12 and 24 months after the initial invitation) to increase participation within the English Bowel Scope Screening program.

Purpose: This study reports the results following the second reminder.

Methods: Men and women included in the initial sample (n = 1,383) were re-assessed for eligibility 24 months after their invitation (12 months after the first reminder) and excluded if they had attended screening, moved away, or died.

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 Uptake of flexible sigmoidoscopy screening in the English Bowel Scope Screening (BSS) Programme is low. The aim of this study was to test the impact of a nonparticipant reminder and theory-based leaflet to promote uptake among former nonresponders (previously did not confirm their appointment) and nonattenders (previously confirmed their appointment but did not attend).  Eligible adults were men and women in London who had not attended a BSS appointment within 12 months of their invitation.

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Background: Participation in low-dose CT (LDCT) lung cancer screening offered in the trial context has been poor, especially among smokers from socioeconomically deprived backgrounds; a group for whom the risk-benefit ratio is improved due to their high risk of lung cancer. Attracting high risk participants is essential to the success and equity of any future screening programme. This study will investigate whether the observed low and biased uptake of screening can be improved using a targeted invitation strategy.

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Background: There is increased interest in the impact of new long-acting treatments on health-related quality of life (HRQoL) in patients with schizophrenia. The aim of this study was to evaluate the impact of treatment with subcutaneous injections of RBP-7000, a new sustained-release formulation of risperidone, compared with placebo on health status, subjective well-being, treatment satisfaction, and preference of medicine in subjects with acute schizophrenia.

Methods: HRQoL data were derived from an 8-week double-blind, randomized, placebo-controlled, phase 3 study that assessed efficacy, safety, and tolerability of once monthly RBP-7000 (90mg and 120mg) compared with placebo in subjects with acute schizophrenia (n=337).

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Background: In March 2013, NHS England extended its national Bowel Cancer Screening Programme to include 'one-off' Flexible Sigmoidoscopy screening (NHS Bowel Scope Screening, BSS) for men and women aged 55. With less than one in two people currently taking up the screening test offer, there is a strong public health mandate to develop system-friendly interventions to increase uptake while the programme is rolling out. This study aimed to assess the feasibility of sending a reminder to previous BSS non-responders, 12 months after the initial invitation, with consideration for its potential impact on uptake.

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Anemia is common in patients with chronic heart failure (HF), with a prevalence ranging from 10% to 56%, and may be a risk factor for poor outcomes. Anemia in HF remains poorly understood, with significant gaps in its impact on health-related quality of life (HRQoL), with most studies in HF being retrospective or from registries. The purpose of this study was to explore the relation of hemoglobin (Hgb) with HRQoL and training-induced changes in HRQoL in a cohort of patients in Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training (HF-ACTION).

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Background: Reports that patients with heart failure and anemia incur greater costs and medical resource use have relied largely on data with limited clinical detail.

Methods: HF-ACTION, a large trial of exercise training in heart failure, recorded hemoglobin at baseline. Medical resource use and hospital bills for inpatient and emergency department visits were collected throughout the study.

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Objectives: The objective of this study was to obtain utilities, or preference-based quality-of-life values, from the Canadian general public, for potential health states experienced by immune thrombocytopenia (ITP) patients receiving either romiplostim (a new thrombopoietin mimetic agent) or 'watch and rescue' therapy. Utilities are needed to conduct a cost-utility analysis of romiplostim for formulary and reimbursement decisions.

Methods: An electronic Time Trade-off (TTO) survey was developed and administered to a sample of the general public in Canada, with 12 distinct health states derived from two randomized clinical trials of romiplostim vs watch and rescue treatment.

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Objective: Utility-based measures of quality of life are recommended by some decision makers in health care. No studies have addressed changes in utility in patients with chronic idiopathic thrombocytopenia (ITP). This study sought to assess the health utilities of patients with chronic ITP and to evaluate the association of change in health utility with changes in other variables, including platelet response status and bleeding events.

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Article Synopsis
  • The study aims to assess how the UK general public values different health states related to immune thrombocytopenic purpura (ITP).
  • A web survey was conducted with 359 participants to evaluate six defined ITP health states based on factors like platelet levels and risk of bleeding.
  • Results showed that the public perceives ITP health states significantly worse than perfect health, with the impact of bleeding episodes being a major concern and severe complications like intracranial hemorrhage leading to very low utility values.
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Objective: To assess the impact of immune thrombocytopenic purpura (ITP) on primary care and specialist visits and workplace productivity.

Research Design And Methods: This was a cross-sectional, descriptive study comparing ITP patients to age- and gender-matched controls. Subjects completed a one-time web-based survey, which included questions on work loss, work productivity, and physician visits.

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The objective of this study was to estimate health care-resource utilization in head and neck cancer (HNC) patients. This was a prospective, longitudinal, multicenter, noninterventional study of mucositis in patients receiving radiation with or without chemotherapy for HNC. Mouth and throat soreness and functional impairment were measured using the Oral Mucositis Weekly Questionnaire-HNC.

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Objective: To assess the health-related quality of life (HRQOL) of immune thrombocytopenic purpura (ITP) patients.

Research Design And Methods: This was a cross-sectional, descriptive study comparing ITP patients' HRQOL to age and gender matched controls. ITP patients from the Platelet Disorder Support Association were recruited until 1000 surveys had been completed.

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Oral mucositis research in children receiving anticancer therapy has been impeded by the lack of an acceptable, appropriate assessment scale. Some scales attempt to measure subjective symptoms associated with mucositis such as pain and difficulty swallowing. These types of patient-reported outcomes are gaining prominence in clinical trials because they capture the perspective of the patients in whom the intervention is designed to benefit.

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Background: Quality-of-life instruments that measure specific functional consequences of mucositis are needed to assess the efficacy of therapeutic interventions targeted against mucositis and to guide patient care. The authors undertook a prospective, multicenter, observational study to assess the validity, reliability, and feasibility of a new instrument, the Oral Mucositis Weekly Questionnaire-Head and Neck Cancer (OMWQ-HN). The OMWQ-HN is a patient-reported outcome questionnaire that measures the symptoms of mucositis, including mouth and throat soreness (MTS), and their impact on patient well-being and function.

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