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Our latest research, all in one place. Browse our collection of journal articles, reports and conference proceedings to see how we’re contributing to HEOR research. Remember to: 

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Peer-reviewed publication

Systematic Review and Network Meta-Analysis of Treatments for Chemotherapy-Naive Patients with Asymptomatic/Mildly Symptomatic Metastatic Castration-Resistant Prostate Cancer

YHEC authors: Rachael McCool, Julie Glanville, Mick Arber
Publication date: October 2018
Journal: Value in Health

Abstract

OBJECTIVES: To estimate the relative effectiveness of enzalutamide in chemotherapy-naive metastatic castration-resistant prostate cancer by conducting a systematic literature review and a network meta-analysis (NMA).

METHODS: A systematic literature review identified randomized controlled trials comparing enzalutamide, abiraterone/prednisone, radium-223, sipuleucel-T, or docetaxel with each other or placebo in chemotherapy-naive or mixed populations (with and without prior chemotherapy) with asymptomatic/mildly symptomatic metastatic castration-resistant prostate cancer. Feasibility assessment evaluated the trials' suitability for NMA inclusion. The main outcomes were hazard ratios (HRs) for overall survival (OS) and radiographic progression-free survival (rPFS).

RESULTS: Searches of relevant bibliographic databases, trial registers, Web sites, and conference abstracts conducted in October 2014 identified 25,712 records. Ten randomized controlled trials were eligible for the NMA. Enzalutamide was superior to placebo for OS and rPFS (fixed-effects model). NMA results (fixed-effects model) showed no evidence of a difference between enzalutamide and abiraterone/prednisone (HR 0.95 [95% CrI 0.77–1.16]), sipuleucel-T (HR 1.07 [95% CrI 0.84–1.37]), or radium-223 (HR 1.10 [95% CrI 0.87–1.37]) for OS. HRs were similar for the random-effects model. Nevertheless, results (fixed-effects model) suggested that enzalutamide was superior to abiraterone/prednisone (HR 0.59 [95% CrI 0.48–0.72]) and sipuleucel-T (HR 0.32 [95% CrI 0.25–0.42]) for rPFS. Results also suggested superiority of enzalutamide versus placebo, abiraterone/prednisone, or sipuleucel-T for time to chemotherapy.

CONCLUSIONS: For rPFS, the NMA suggests that enzalutamide is superior to abiraterone/prednisone and sipuleucel-T. There is no evidence of a statistically significant difference in OS between enzalutamide and abiraterone/prednisone, sipuleucel-T, or radium-223. Given the limitations in network construction and underlying assumptions made to complete these analyses, results should be interpreted with caution.

Peer-reviewed publication

Using Behavioural Science to Explore Patient Perceptions

YHEC authors: Andria Hanbury, Hannah Wood
Publication date: October 2018
Journal: International Journal of Pharmaceutical and Healthcare Marketing

Abstract

PURPOSE: This paper aims to develop a behavioural science informed communication strategy aimed at health professionals and patients promoting best practice recommendations regarding the use of specialist liquid medicines for elderly people with swallowing difficulties.

DESIGN / METHODOLOGY / APPROACH: The medicine prescribing, formulation and administration related challenges and experiences of health professionals and elderly patients with swallowing difficulties were identified through a pragmatic literature search. Key findings across the papers were synthesised into themes, before being linked to domains from a behavioural science framework. Published recommendations for behaviour change techniques that can be used to target the domains were then mapped to the domains. Guidance on how to develop a communication strategy, drawing on the insight gained from the literature review and the behavioural science recommendations, and designed to stimulate change in health-care professionals' and patients' behaviours, was then developed.

FINDINGS: In total, 13 themes emerged across 15 papers, including "patient and health professional roles and remits". These themes were linked to nine domains from the framework, highlighting the range of individual, social and environmental factors influencing patients' and health professionals' perceptions and experiences. A summary table, mapping the domains and underpinning themes to recommended behaviour change techniques, was used to develop the subsequent communication strategy recommendations. Recommendations include using techniques such as providing social processes of encourage, pressure and support to change patients' and health professionals' perceptions of their roles/responsibilities in medicines prescribing and administration, delivered via, for example, an educational leaflet and/or online training.

PRACTICAL IMPLICATIONS: The summary table and guidance can inform development of an evidence-based strategy for communicating best practice recommendations regarding the use of liquid medicines for elderly patients with swallowing difficulties, tailored to the perceptions and challenges identified.

ORIGINALITY / VALUE: The behavioural science approach is less established within the pharmaceutical industry for promotion of best practice recommendations and related products, yet it offers a framework for an evidence-based and systematic approach that goes beyond a literature review or focus group.

Peer-reviewed publication

Modelling the Cost-Effectiveness of Tofacitinib for the Treatment of Rheumatoid Arthritis in the United States

YHEC authors: Lindsay Claxton, Matthew Taylor
Publication date: August 2018
Journal: Current Medical Research and Opinion

Abstract

BACKGROUND AND OBJECTIVES: Rheumatoid arthritis (RA) is a chronic, debilitating disease affecting an estimated 1.5 million patients in the US. The condition is associated with a substantial health and economic burden. An economic model was developed to evaluate the cost-effectiveness of tofacitinib (a novel oral Janus kinase inhibitor) versus biologic therapies commonly prescribed in the US for the treatment of RA.

METHODS: A cost-utility model was developed whereby sequences of treatments were evaluated. Response to treatment was modeled by HAQ change, and informed by a network meta-analysis. Mortality, resource use and quality of life were captured in the model using published regression analyses based on HAQ score. Treatment discontinuation was linked to response to treatment and to adverse events. Patients were modeled as having had an inadequate response to methotrexate (MTX-IR), or to a first biologic therapy (TNFi-IR).

RESULTS: The tofacitinib strategy was associated with cost savings compared with alternative treatment sequences across all modeled scenarios (i.e. in both the MTX-IR and TNFi-IR scenarios), with lifetime cost savings per patient ranging from $65,205 to $93,959 (2015 costs). Cost savings arose due to improved functioning and the resulting savings in healthcare expenditure, and lower drug and administration costs. The tofacitinib strategies all resulted in an increase in quality-adjusted life years (QALYs), with additional QALYs per patient ranging from 0.01 to 0.22.

CONCLUSIONS: Tofacitinib as a second-line therapy following methotrexate failure and as a third-line therapy following a biologic failure produces lower costs and improved quality of life compared with the current pathway of care.

Peer-reviewed publication

Use of Expert Judgement Across NICE Guidance-Making Programmes: A Review of Current Processes and Suitability of Existing Tools to Support the Use of Expert Elicitation

YHEC authors: Michelle Jenks, Alison Peel
Publication date: August 2018
Journal: Applied Health Economics and Health Policy

Abstract

OBJECTIVES: This study aimed to review current use of experts within National Institute for Health and Care Excellence (NICE) guidance-making programmes, identify improvements in use of expert judgement, and to assess tools and protocols to support the elicitation of information from experts for use by NICE.

METHODS: The study comprised a review of NICE process guides; semi-structured interviews with individuals representing each NICE guidance-making programme and a comparison of the suitability of currently available tools and protocols for expert elicitation to the requirements of NICE programmes.

RESULTS: Information elicited from experts and the way in which it is used varies across NICE guidance-making programmes. Experts' involvement can be as intensive as being a member of a committee and thus having direct influence on recommendations or limited one-off consultations on specific parameters. We identified 16 tools for expert elicitation that were potentially relevant. None fully met the requirements of NICE, although an existing tool could be potentially adapted. Ongoing research to develop a reference protocol for expert elicitation in healthcare decision making may be of use in future.

CONCLUSIONS: NICE uses expert judgement across all its guidance-making programmes, but its uses vary considerably. There is no currently available tool for expert elicitation suitable for use by NICE. However, adaptation of an existing tool or ongoing research in the area could address this in the future.

Peer-reviewed publication

The Future of Precision Medicine: Potential Impacts for Health Technology Assessment

YHEC authors: James Love-Koh, Alison Peel, Hannah Wood, Matthew Taylor
Publication date: July 2018
Journal: PharmacoEconomics

Abstract

OBJECTIVE: Precision medicine allows healthcare interventions to be tailored to groups of patients based on their disease susceptibility, diagnostic or prognostic information, or treatment response. We analysed what developments are expected in precision medicine over the next decade and considered the implications for health technology assessment (HTA) agencies.

METHODS: We performed a pragmatic literature search to account for the large size and wide scope of the precision medicine literature. We refined and enriched these results with a series of expert interviews up to 1 h in length, including representatives from HTA agencies, research councils and researchers designed to cover a wide spectrum of precision medicine applications and research.

RESULTS: We identified 31 relevant papers and interviewed 13 experts. We found that three types of precision medicine are expected to emerge in clinical practice: complex algorithms, digital health applications and 'omics'-based tests. These are expected to impact upon each stage of the HTA process, from scoping and modelling through to decision-making and review. The complex and uncertain treatment pathways associated with patient stratification and fast-paced technological innovation are central to these effects.

DISCUSSION: Innovation in precision medicine promises substantial benefits but will change the way in which some health services are delivered and evaluated. The shelf life of guidance may decrease, structural uncertainty may increase and new equity considerations will emerge. As biomarker discovery accelerates and artificial intelligence-based technologies emerge, refinements to the methods and processes of evidence assessments will help to adapt and maintain the objective of investing in healthcare that is value for money.

Peer-reviewed publication

An Economic Evaluation of Tofacitinib (Xeljanz) Treatment in Rheumatoid Arthritis After Methotrexate or After One or Two TNF Inhibitors from the United States Payers’ Perspective

YHEC authors: Matthew Taylor
Publication date: June 2018
Journal: Journal of Managed Care & Specialty Pharmacy

Abstract

BACKGROUND: Treatment cycling with biologic disease-modifying anti-rheumatic drugs, such as tumor necrosis factor inhibitors (TNFi), is common among patients with rheumatoid arthritis (RA) and can result in reduced clinical efficacy and increased economic burden. Tofacitinib is an oral Janus kinase inhibitor for the treatment of RA.

OBJECTIVE: To evaluate and compare the economic effect of tofacitinib 5 mg twice daily (BID) treatment directly after methotrexate (MTX) in the MTX-inadequate responder population, or after MTX and 1 TNFi (adalimumab [ADA] or etanercept [ETN]) or 2 TNFi (ADA and ETN) in TNF-inadequate responder patients with RA, from a U.S. payer perspective.

METHODS: A decision-tree economic model was used to evaluate costs over 2 years. Treatment response was modeled as American College of Rheumatology (ACR) 20/50/70 response. ACR response rates at 6-month intervals were derived from U.S. prescribing information for monotherapy and combination therapy. Safety event rates were sourced from a meta-analysis. It was assumed that 75% of patients switched therapy after an adverse event or lack of response. Cost inputs included drugs, monitoring and administration (including physician visits), health care utilization, and treatment for adverse events. The population comprised all organization members (i.e., RA and non-RA members); RA patients receiving TNFi were estimated using epidemiologic data. Results were based on an organization size of 1 million. Economic endpoints were total 2-year costs, costs per member per month (PMPM), and costs per ACR20/50 responder.

RESULTS: 1,321 patients were included for analysis. Based on ACR20 switch criteria and either 100% or 50% monotherapy rates for all treatments, total 2-year costs and costs PMPM were lower for patients receiving tofacitinib as second-line therapy after MTX and as third-line therapy after MTX and 1 TNFi; costs were highest for patients who cycled through 2 TNFi. Similar trends were observed for switch criteria based on ACR50 response and addition of 20% rebates for ADA and ETN and 0% for tofacitinib, although differences were mitigated slightly.

CONCLUSIONS: A treatment strategy with tofacitinib as either second- or third-line therapy after MTX may be a lower cost treatment option, compared with fourth-line introduction of tofacitinib after cycling through 2 TNFi following MTX.

Peer-reviewed publication

Evaluation of the Clinical and Cost-Effectiveness of the York Faecal Calprotectin Care Pathway

YHEC authors: James Turvill
Publication date: June 2018
Journal: Colorectal Research

Abstract

OBJECTIVE: To evaluate the sensitivity and specificity of the York Faecal Calprotectin Care Pathway (YFCCP) and undertake a health economics analysis. The YFCCP has been introduced in support of the National Institute for Health and Care Excellence (NICE) guidance DG11. It is designed to improve the sensitivity and specificity of faecal calprotectin (FC) in discriminating the irritable bowel syndrome from inflammatory bowel disease in primary care.

DESIGN:To prospectively evaluate the clinical outcomes at 6 months of the first 1005 patients entering the YFCCP. To develop a cost-consequence model using two comparators: one based on clinical assessment and the C reactive protein/erythrocyte sedimentation rate without using FC, and the second using single testing of the standard FC cut-off.

SETTING: North Yorkshire primary care practices.

PATIENTS: Primary care patients fulfilling NICE DG11.

INTERVENTIONS: The YFCCP.

MAIN OUTCOME MEASURES: Clinical outcome measures from secondary care records.

RESULTS: The sensitivity and specificity of the YFCCP are 0.94 (0.85 to 0.98) and 0.92 (0.90 to 0.94), giving a negative and positive predictive value of 0.99 (0.98 to 1.0) and 0.51 (0.43 to 0.59), respectively.

CONCLUSIONS: The YFCCP overcomes the challenges experienced with FC use in primary care, its efficacy matching initial NICE projections. It is readily incorporated into clinical practice. It should represent the framework on which to increase NICE DG11 implementation nationally.

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