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Dive into the research topics where Antony P. Martin is active.

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Featured researches published by Antony P. Martin.


International Journal of Clinical Practice | 2013

Influence of multiple initiatives in Sweden to enhance ARB prescribing efficiency following generic losartan : findings and implications for other countries

Brian Godman; Björn Wettermark; Jamilette Miranda; Marion Bennie; Antony P. Martin; Rickard E. Malmström

Encouraging the prescribing of ACEIs first line vs. angiotensin receptor blockers (ARBs) has been a health authority focus with generic ACEIs as ACEIs and ARBs have similar effectiveness and there is limited coughing with ACEIs. This includes Sweden with its multiple initiatives keeping expenditure on renin‐angiotensin inhibitor drugs similar between 2001 and 2007 despite appreciably increased volumes. Generic losartan became available and was reimbursed in March 2010 providing further opportunities for the authorities in Sweden to save costs with all ARBs seen as similar in managing hypertension and CHF at appropriate doses.


Frontiers in Pharmacology | 2016

Payers' views of the changes arising through the possible adoption of adaptive pathways

Michael Ermisch; Anna Bucsics; Patricia Vella Bonanno; Francis Arickx; Alexander Bybau; Tomasz Bochenek; Marc Van de Casteele; Eduardo Diogene; Jurij Fürst; Kristina Garuolienė; Martin van der Graaff; Jolanta Gulbinovič; Alan Haycox; Jan Jones; Roberta Joppi; Ott Laius; Irene Langner; Antony P. Martin; Vanda Markovic-Pekovic; Laura McCullagh; Einar Magnusson; Ellen Nilsen; Gisbert Selke; Catherine Sermet; Steven Simoens; Robert Sauermann; Ad Schuurman; Ricardo Ramos; Vera Vlahović-Palčevski; Corinne Zara

Payers are a major stakeholder in any considerations and initiatives concerning adaptive licensing of new medicinal products, also referred to as Medicines Adaptive Pathways to patients (MAPPs). Firstly, the scope and necessity of MAPPs need further scrutiny, especially with regard to the definition of unmet need. Conditional approval pathways already exist for new medicines for seriously debilitating or life-threatening diseases and only a limited number of new medicines are innovative. Secondly, MAPPs will result in new medicines on the market with limited evidence about their effectiveness and safety. Additional data are to be collected after approval. Consequently, adaptive pathways may increase the risk of exposing patients to ineffective or unsafe medicines. We have already seen medicines approved conventionally that subsequently proved ineffective or unsafe amongst a wider, more co-morbid population as well as medicines that could have been considered for approval under MAPPs but subsequently proved ineffective or unsafe in Phase III trials and were never licensed. Thirdly, MAPPs also put high demands on payers. Routine collection of patient level data is difficult with high transaction costs. It is not clear who will fund these. Other challenges for payers include shifts in the risk governance framework, implications for evaluation and HTA, increased complexity of setting prices, difficulty with ensuring equity in the allocation of resources, definition of responsibility and liability and implementation of stratified use. Exit strategies also need to be agreed in advance, including price reductions, rebates, or reimbursement withdrawals when price premiums are not justified. These issues and concerns will be discussed in detail including potential ways forward.


Journal of Clinical Apheresis | 2016

Evaluating the use of plerixafor in stem cell mobilisation - an economic analysis of the PHANTASTIC trial.

Antony P. Martin; Sarah Richards; Alan Haycox; Rachel Houten; C McLeod; Barbara Braithwaite; Jack O. Clark; Joanne Bell; Richard E. Clark

Plerixafor is an effective haematopoietic stem cell mobilising agent in candidates for autologous transplantation, including patients with myeloma and lymphoma. Here we compare 98 plerixafor recipients in the PHANTASTIC trial with 151 historic controls mobilised by conventional chemotherapy (each with granulocyte colony‐stimulating factor, G‐CSF). Seventy (71.4%) plerixafor‐mobilised patients achieved the composite primary endpoint of ≥4 × 106 CD34+ cells kg−1 in ≤2 aphereses and no clinically significant neutropenia, compared to 48 (31.8%) historic controls (P < 0.001), and this significant advantage was maintained in scenario analyses testing components of this composite endpoint. A patient‐level cost analysis was undertaken for 249 patients, which included the cost of remobilising patients where initial mobilisation had failed. Combined mean treatment cost for plerixafor mobilised patients was £12,679 compared with £11,694 for historical controls. However, plerixafor produces an average saving of £3,828 per lymphoma patient but average cost increase by £5,245 per myeloma patient. The present data demonstrate cost‐effectiveness for plerixafor as a first line mobilisation agent, certainly for lymphoma patients, where substantial resource savings and achievement of the primary endpoint are likely. J. Clin. Apheresis 31:434–442, 2016.


Journal of Clinical Apheresis | 2015

Plerixafor is cost‐effective compared to conventional chemotherapy for first‐line haematopoietic stem cell mobilization: Data from the PHANTASTIC trial

Antony P. Martin; Sarah Richards; Alan Haycox; Rachel Houten; C McLeod; Barbara Braithwaite; Jack O. Clark; Joanne Bell; Richard E. Clark

Plerixafor is an effective haematopoietic stem cell mobilising agent in candidates for autologous transplantation, including patients with myeloma and lymphoma. Here we compare 98 plerixafor recipients in the PHANTASTIC trial with 151 historic controls mobilised by conventional chemotherapy (each with granulocyte colony‐stimulating factor, G‐CSF). Seventy (71.4%) plerixafor‐mobilised patients achieved the composite primary endpoint of ≥4 × 106 CD34+ cells kg−1 in ≤2 aphereses and no clinically significant neutropenia, compared to 48 (31.8%) historic controls (P < 0.001), and this significant advantage was maintained in scenario analyses testing components of this composite endpoint. A patient‐level cost analysis was undertaken for 249 patients, which included the cost of remobilising patients where initial mobilisation had failed. Combined mean treatment cost for plerixafor mobilised patients was £12,679 compared with £11,694 for historical controls. However, plerixafor produces an average saving of £3,828 per lymphoma patient but average cost increase by £5,245 per myeloma patient. The present data demonstrate cost‐effectiveness for plerixafor as a first line mobilisation agent, certainly for lymphoma patients, where substantial resource savings and achievement of the primary endpoint are likely. J. Clin. Apheresis 31:434–442, 2016.


Frontiers in Pharmacology | 2017

Adaptive Pathways: Possible Next Steps for Payers in Preparation for Their Potential Implementation

Patricia Vella Bonanno; Michael Ermisch; Brian Godman; Antony P. Martin; Jesper Van Den Bergh; Liudmila Bezmelnitsyna; Anna Bucsics; Francis Arickx; Alexander Bybau; Tomasz Bochenek; Marc Van de Casteele; Eduardo Diogene; Irene Eriksson; Jurij Fürst; Mohamed Gad; Ieva Greičiūtė-Kuprijanov; Martin van der Graaff; Jolanta Gulbinovič; Jan Jones; Roberta Joppi; Marija Kalaba; Ott Laius; Irene Langner; Ileana Mardare; Vanda Markovic-Pekovic; Einar Magnusson; Oyvind Melien; Dmitry Meshkov; Guenka Petrova; Gisbert Selke

Medicines receiving a conditional marketing authorization through Medicines Adaptive Pathways to Patients (MAPPs) will be a challenge for payers. The “introduction” of MAPPs is already seen by the European Medicines Agency (EMA) as a fait accompli, with payers not consulted or involved. However, once medicines are approved through MAPPs, they will be evaluated for funding by payers through different activities. These include Health Technology Assessment (HTA) with often immature clinical data and high uncertainty, financial considerations, and negotiations through different types of agreements, which can require monitoring post launch. Payers have experience with new medicines approved through conditional approval, and the fact that MAPPs present additional challenges is a concern from their perspective. There may be some activities where payers can collaborate. The final decisions on whether to reimburse a new medicine via MAPPs will have more variation than for medicines licensed via conventional processes. This is due not only to increasing uncertainty associated with medicines authorized through MAPPs but also differences in legal frameworks between member states. Moreover, if the financial and side-effect burden from the period of conditional approval until granting full marketing authorization is shifted to the post-authorization phase, payers may have to bear such burdens. Collection of robust data during routine clinical use is challenging along with high prices for new medicines during data collection. This paper presents the concept of MAPPs and possible challenges. Concerns and potential ways forward are discussed and a number of recommendations are presented from the perspective of payers.


Lancet Infectious Diseases | 2018

Incidence, aetiology, and sequelae of viral meningitis in UK adults: a multicentre prospective observational cohort study

Fiona McGill; Michael Griffiths; Laura Bonnett; Anna Maria Geretti; Benedict Michael; Nicholas J. Beeching; David McKee; Paula Scarlett; Ian J. Hart; Kenneth J. Mutton; Agam Jung; Guleed Adan; Alison Gummery; Wan Aliaa Wan Sulaiman; Katherine Ennis; Antony P. Martin; Alan Haycox; Alastair Miller; Tom Solomon; Adekola Adedeji; Ajdukiewicz Katharine; Birkenhead David; Blanchard Thomas; Cadwgan Antony; Chadwick David; Cheesbrough John; Cooke Richard; Croall John; Crossingham Iain; Dunbar James

Summary Background Viral meningitis is increasingly recognised, but little is known about the frequency with which it occurs, or the causes and outcomes in the UK. We aimed to determine the incidence, causes, and sequelae in UK adults to improve the management of patients and assist in health service planning. Methods We did a multicentre prospective observational cohort study of adults with suspected meningitis at 42 hospitals across England. Nested within this study, in the National Health Service (NHS) northwest region (now part of NHS England North), was an epidemiological study. Patients were eligible if they were aged 16 years or older, had clinically suspected meningitis, and either underwent a lumbar puncture or, if lumbar puncture was contraindicated, had clinically suspected meningitis and an appropriate pathogen identified either in blood culture or on blood PCR. Individuals with ventricular devices were excluded. We calculated the incidence of viral meningitis using data from patients from the northwest region only and used these data to estimate the population-standardised number of cases in the UK. Patients self-reported quality-of-life and neuropsychological outcomes, using the EuroQol EQ-5D-3L, the 36-Item Short Form Health Survey (SF-36), and the Aldenkamp and Baker neuropsychological assessment schedule, for 1 year after admission. Findings 1126 patients were enrolled between Sept 30, 2011, and Sept 30, 2014. 638 (57%) patients had meningitis: 231 (36%) cases were viral, 99 (16%) were bacterial, and 267 (42%) had an unknown cause. 41 (6%) cases had other causes. The estimated annual incidence of viral meningitis was 2·73 per 100 000 and that of bacterial meningitis was 1·24 per 100 000. The median length of hospital stay for patients with viral meningitis was 4 days (IQR 3–7), increasing to 9 days (6–12) in those treated with antivirals. Earlier lumbar puncture resulted in more patients having a specific cause identified than did those who had a delayed lumbar puncture. Compared with the age-matched UK population, patients with viral meningitis had a mean loss of 0·2 quality-adjusted life-years (SD 0·04) in that first year. Interpretation Viruses are the most commonly identified cause of meningitis in UK adults, and lead to substantial long-term morbidity. Delays in getting a lumbar puncture and unnecessary treatment with antivirals were associated with longer hospital stays. Rapid diagnostics and rationalising treatments might reduce the burden of meningitis on health services. Funding Meningitis Research Foundation and UK National Institute for Health Research.


Journal of Addictive Diseases | 2017

Assessing the effectiveness and cost-effectiveness of drug intervention programs: UK case study

Brendan Collins; Kevin Cuddy; Antony P. Martin

ABSTRACT The effectiveness and cost-effectiveness of the UK Drug Interventions Program which directs adult drug-misusing offenders out of crime and into treatment programs was established. Quality-adjusted life year estimates from the UK Drug Treatment Outcomes Research Study were collected and a cost-utility assessment of the Drug Interventions Program was conducted. Cost-utility assessment confirmed that the Drug Interventions Program is both effective and cost-effective with an average net cost saving of £668 (£6,207 including one case of homicide). This study provides evidence that drug intervention programs are cost-effective as they reduce crime, improve quality-of-life and reduce subsequent drug use.


Diseases of The Colon & Rectum | 2017

Avoiding Radical Surgery in Elderly Patients With Rectal Cancer Is Cost-effective

Christopher Rao; Arthur Sun Myint; Thanos Athanasiou; Omar Faiz; Antony P. Martin; Brendan Collins; Fraser McLean Smith

BACKGROUND: Radical surgery is associated with significant perioperative mortality in elderly and comorbid populations. Emerging data suggest for patients with a clinical complete response after neoadjuvant chemoradiotherapy that a watch-and-wait approach may provide equivalent survival and oncological outcomes. OBJECTIVE: The purpose of this study was to compare the cost-effectiveness of watch and wait and radical surgery for patients with rectal cancer after a clinical complete response following chemoradiotherapy. DESIGN: Decision analytical modeling and a Markov simulation were used to model long-term costs, quality-adjusted life-years, and cost-effectiveness after watch and wait and radical surgery. Sensitivity analysis was used to investigate the effect of uncertainty in model parameters. SETTINGS: A third-party payer perspective was adopted. PATIENTS: Patients included in the study were a 60-year–old male cohort with no comorbidities, 80-year–old male cohorts with no comorbidities, and 80-year–old male cohorts with significant comorbidities. INTERVENTIONS: Radical surgery and watch-and-wait approaches were studied. MAIN OUTCOME MEASURES: Incremental cost, effectiveness, and cost-effectiveness ratio over the entire lifetime of the hypothetical patient cohorts were measured. RESULTS: Watch and wait was more effective (60-year–old male cohort with no comorbidities = 0.63 quality-adjusted life-years (95% CI, 2.48–3.65 quality-adjusted life-years); 80-year–old male cohort with no comorbidities = 0.56 quality-adjusted life-years (95% CI, 0.52–1.59 quality-adjusted life-years); 80-year–old male cohort with significant comorbidities = 0.72 quality-adjusted life-years (95% CI, 0.34–1.76 quality-adjusted life-years)) and less costly (60-year–old male cohort with no comorbidities =


Expert Review of Pharmacoeconomics & Outcomes Research | 2017

The value of innovation in decision-making in health care in Central Eastern Europe - The Sixth International Conference, 2 June 2017, Belgrade, Serbia

Tanja Novakovic; Antony P. Martin; Mark Parker; Alessandra Ferrario; Simo Vukovic; Krzysztof Łanda; Jaroslav Duba; Dávid Dankó; Nikolaos Kotsopoulos; Brian Godman; Jelena Ristic; Danka Stefanovic; Danka Tesic

11,332.35 (95% CI,


Expert Review of Pharmacoeconomics & Outcomes Research | 2016

Addressing challenges for sustainable healthcare in Central and Eastern Europe

Brian Godman; Tanja Novakovic; Danka Tesic; Wija Oortwijn; Antony P. Martin; Mark Parker; Alan Haycox

668.50–

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Alan Haycox

University of Liverpool

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A. Stewart

Royal Surrey County Hospital

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