Research Topics
| Marissa LassereSummaryAffiliation: New South Wales Country: Australia Publications
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Detail Information
Publications
Definitions and validation criteria for biomarkers and surrogate endpoints: development and testing of a quantitative hierarchical levels of evidence schemaMarissa N Lassere
Department of Rheumatology, St George Hospital, University of New South Wales, Sydney, Australia
J Rheumatol 34:607-15. 2007..Our objective was to review the literature on biomarkers and surrogates to develop a hierarchical schema that systematically evaluates and ranks the surrogacy status of biomarkers and surrogates; and to obtain feedback from stakeholders...
How many life years are lost in patients with rheumatoid arthritis? Secular cause-specific and all-cause mortality in rheumatoid arthritis, and their predictors in a long-term Australian cohort studyM N Lassere
Faculty of Medicine, University of NSW, Sydney, New South Wales, Australia
Intern Med J 43:66-72. 2013..There is an excess of mortality in patients with rheumatoid arthritis (RA) but no long-term Australian cohort data...
Is blood pressure reduction a valid surrogate endpoint for stroke prevention? An analysis incorporating a systematic review of randomised controlled trials, a by-trial weighted errors-in-variables regression, the surrogate threshold effect (STE) and the BMarissa N Lassere
School of Public Health and Community Medicine, Faculty of Medicine, University of New South Wales, Sydney 2052, NSW, Australia
BMC Med Res Methodol 12:27. 2012..The aims of this study were to (i) formally evaluate systolic and diastolic blood pressure reduction as a surrogate endpoint for stroke prevention and (ii) determine what blood pressure reduction would predict a stroke benefit...- Clinicians adopting evidence based guidelines: a case study with thromboprophylaxisNicola H Chapman
St George Public Hospital, Kogarah, NSW, Australia
BMC Health Serv Res 11:240. 2011..This study was conducted to explore clinicians' attitudes and the clinical environment in which they work to understand their reluctance to adopt VTE prophylaxis guidelines... - Simulation studies of surrogate endpoint validation using single trial and multitrial statistical approachesMarissa Lassere
Department of Rheumatology, St George Hospital, University of New South Wales, Sydney, Australia
J Rheumatol 34:616-9. 2007..This report examines one component of the schema. It surveys the literature on methods of statistical validation of surrogate markers and compares these methods head-to-head using simulated datasets... - Imaging: the need for standardizationMarissa N Lassere
Department of Rheumatology, St George Hospital, University of NSW, Gray Street, Kogarah 2217, Sydney, Australia
Best Pract Res Clin Rheumatol 22:1001-18. 2008..Using the matrix, one can determine the gaps in knowledge and what further evaluation is needed in one or more domains or metrics... - The Biomarker-Surrogacy Evaluation Schema: a review of the biomarker-surrogate literature and a proposal for a criterion-based, quantitative, multidimensional hierarchical levels of evidence schema for evaluating the status of biomarkers as surrogate endpMarissa N Lassere
Department of Rheumatology, St George Hospital, University of New South Wales, Sydney, Australia
Stat Methods Med Res 17:303-40. 2008..This schema would facilitate communication between clinical, researcher, regulatory, industry and consumer participants necessary for evaluation of the biomarker-surrogate-clinical endpoint relationship in their different settings... - A multireader reliability study comparing conventional high-field magnetic resonance imaging with extremity low-field MRI in rheumatoid arthritisPaul Bird
Department of Rheumatology, St George Hospital, University of New South Wales, Sydney, Australia
J Rheumatol 34:854-6. 2007..However, for synovitis and bone edema, considerable intermachine and interreader variability was found. Further studies are needed before recommendations on multireader E-MRI assessment of these pathologies can be given... - The power of the protocolMarissa Lassere
Department of Rheumatology, St George Hospital, 2217 New South Wales, Kogarah, Australia
Lancet 360:1620-2. 2002 - Treatment of antiphospholipid syndrome in pregnancy--a systematic review of randomized therapeutic trialsMarissa Lassere
Department of Rheumatology, St George Hospital, Gray Street, Kogarah, 2217, NSW, Australia
Thromb Res 114:419-26. 2004..Ideally, co-operative large fully blinded placebo controlled randomized trials of therapy in patients with obstetric aPL stratified by different levels of risk are still required... - OMERACT Rheumatoid Arthritis Magnetic Resonance Imaging Studies. Exercise 3: an international multicenter reliability study using the RA-MRI ScoreMarissa Lassere
Department of Rheumatology, St George Hospital, University of New South Wales, Sydney, Australia
J Rheumatol 30:1366-75. 2003..Whether the score is sensitive to change will be determined by its performance in longitudinal and intervention studies... - Power Doppler ultrasound in musculoskeletal disease: a systematic reviewFredrick Joshua
Rheumatology Department, St George Hospital, Kogarah, NSW, Australia
Semin Arthritis Rheum 36:99-108. 2006..To evaluate the performance characteristics of power Doppler ultrasound as a diagnostic and monitoring tool in the assessment of musculoskeletal disease through a systematic review of the literature... - Summary findings of a systematic review of the ultrasound assessment of synovitisFredrick Joshua
Department of Rheumatology, St George Hospital, University of NSW, Sydney, Australia
J Rheumatol 34:839-47. 2007..The review highlights the current gaps in the literature, including a lack of reliability data with respect to intra-occasion and intra- and inter-reader reliability. Current work by our group is addressing these issues... - Computerized measurement of magnetic resonance imaging erosion volumes in patients with rheumatoid arthritis: a comparison with existing magnetic resonance imaging scoring systems and standard clinical outcome measuresPaul Bird
Rheumatology Department, St George Hospital, Kogarah, New South Wales, Australia
Arthritis Rheum 48:614-24. 2003.... - Reliability and longitudinal validity of computer-assisted methods for measuring joint damage progression in subjects with rheumatoid arthritisMervyn Qi Wei Poh
From the St George Clinical School, University of New South Wales NSW, Sydney, Australia
J Rheumatol 40:23-9. 2013.... - Documenting damage progression in a two-year longitudinal study of rheumatoid arthritis patients with established disease (the DAMAGE study cohort): is there an advantage in the use of magnetic resonance imaging as compared with plain radiography?Paul Bird
St George Hospital, Belgrave Street, Kogarah, New South Wales 2217, Australia
Arthritis Rheum 50:1383-9. 2004..The present study evaluated the progression of erosive damage in patients with established RA by using limited field of view MRI and comparing the results with those obtained by radiography... - Training and calibration improve inter-reader reliability of joint damage assessment using magnetic resonance image scoring and computerized erosion volume measurementPaul Bird
Rheumatology Department and the Magnetic Resonance Imaging Department, St George Hospital, Kogarah, New South Wales, Australia
J Rheumatol 32:1452-8. 2005.... - OMERACT Rheumatoid Arthritis Magnetic Resonance Imaging Studies. Exercise 5: an international multicenter reliability study using computerized MRI erosion volume measurementsPaul Bird
Department of Rheumatology, St George Hospital, Sydney, Australia
J Rheumatol 30:1380-4. 2003..Despite high ICC, the inter-observer reliability is not sufficient for multicenter use without prior reader training and calibration. The optimal slice thickness was not determined...