Dr Peter Chapman, Our people, University of Otago, Christchurch

BSc, M.D(Otago) FRACP, PGDipMSM(Otago)

Peter is a Rheumatologist and Clinical Director of Department of Rheumatology, Immunology and Allergy, Canterbury District Health Board.

He has a broad range of interests in Rheumatology and is involved in undergraduate and postgraduate education.

Publications

Stamp, L., Horne, A., Mihov, B., Drake, J., Haslett, J., Chapman, P. T., Frampton, C., & Dalbeth, N. (2023). Is colchicine prophylaxis required with start-low go-slow allopurinol dose escalation in gout? A non-inferiority randomised double-blind placebo-controlled trial. Annals of the Rheumatic Diseases, 82, 1626-1634. doi: 10.1136/ard-2023-224731

Lyne, S. A., Ruediger, C., Lester, S., Chapman, P. T., Shanahan, E. M., Hill, C. L., & Stamp, L. (2022). Giant cell arteritis: A population-based retrospective cohort study exploring incidence and clinical presentation in Canterbury, Aotearoa New Zealand. Frontiers in Medicine, 9, 1057917. doi: 10.3389/fmed.2022.1057917

Li, B., Falvey, J., Pike, L., Sies, C., Chapman, P., & Florkowski, C. (2022). A case of macroenzyme aspartate aminotransferase (macro-AST) in a patient with seronegative rheumatoid arthritis. New Zealand Medical Journal, 135(1558), 106-109. Retrieved from https://journal.nzma.org.nz

Monti, S., Craven, A., Klersy, C., Montecucco, C., Caporali, R., Watts, R., … on behalf of DCVAS Collaborators, including Chapman, P. T. (2021). Association between age at disease onset of anti-neutrophil cytoplasmic antibody–associated vasculitis and clinical presentation and short-term outcomes. Rheumatology, 60(2), 617-628. doi: 10.1093/rheumatology/keaa215

Stamp, L. K., & Chapman, P. T. (2020). Allopurinol hypersensitivity: Pathogenesis and prevention. Best Practice & Research: Clinical Rheumatology, 34, 101501. doi: 10.1016/j.berh.2020.101501

Stamp, L. K., Chapman, P., Frampton, C., Duffull, S. B., Drake, J., Zhang, Y., & Neogi, T. (2020). Lack of effect of tart cherry concentrate dose on serum urate in people with gout. Rheumatology, 59, 2374-2380. doi: 10.1093/rheumatology/kez606

Stamp, L. K., Chapman, P. T., Barclay, M., Horne, A., Frampton, C., Merriman, T. R., Wright, D. F. B., … Dalbeth, N. (2020). Relationships between allopurinol dose, oxypurinol concentration and urate-lowering response: In search of a minimum effective oxypurinol concentration. Clinical & Translational Science, 13, 110-115. doi: 10.1111/cts.12686

Stamp, L., Chapman, P., Barclay, M., Horne, A., Frampton, C., Merriman, T., Wright, D., … Dalbeth, N. (2019). Relationships between allopurinol dose, oxypurinol levels and serum urate: In search of an oxypurinol therapeutic concentration. Arthritis & Rheumatology, 71(Suppl. 10), 1222. doi: 10.1002/art.41108

Stamp, L., Zhang, Y., Frampton, C., Drake, J., Chapman, P., Duffull, S., & Neogi, T. (2019). Lack of effect of tart cherry concentrate dose on serum urate in people with gout. Arthritis & Rheumatology, 71(Suppl. 10), 0899. doi: 10.1002/art.41108

Stamp, L. K., O'Donnell, J. L., Frampton, C., Drake, J., Zhang, M., Barclay, M., & Chapman, P. (2019). A pilot randomized controlled double-blind trial of high- versus low-dose weekly folic acid in people with rheumatoid arthritis receiving methotrexate. Journal of Clinical Rheumatology, 25(7), 284-287. doi: 10.1097/RHU.0000000000000848

Becker, M., Graf, N., Sauter, R., Allanore, Y., Curram, J., Denton, C. P., … EUSTAR Collaborators, including Stebbings, S., Highton, J., Stamp, L., Chapman, P., & O'Donnell, J. (2019). Predictors of disease worsening defined by progression of organ damage in diffuse systemic sclerosis: A European Scleroderma Trials and Research (EUSTAR) analysis. Annals of the Rheumatic Diseases, 78(9), 1242-1248. doi: 10.1136/annrheumdis-2019-215145

Bursill, D., Taylor, W. J., Terkeltaub, R., Abhishek, A., So, A. K., Vargas-Santos, A. B., … Stamp, L., … Chapman, P. T., … Grainger, R., … Merriman, T., … Dalbeth, N. (2019). Gout, Hyperuricaemia and Crystal-Associated Disease Network (G-CAN) consensus statement regarding labels and definitions of disease states of gout. Annals of the Rheumatic Diseases, 78(11), 1592-1600. doi: 10.1136/annrheumdis-2019-215933

Stamp, L. K., Chapman, P., Hudson, B., Frampton, C., Hamilton, G., & Judd, A. (2019). The challenges of managing gout in primary care: Results of a best-practice audit. Australian Journal of General Practice, 48(9), 631-637. doi: 10.31128/AJGP-04-19-4909

Sobanski, V., Giovannelli, J., Allanore, Y., Riemekasten, G., Airò, P., Vettori, S., … and the EUSTAR Collaborators, including Stebbings, S., Highton, J., Stamp, L., Chapman, P., & O'Donnell, J. (2019). Phenotypes determined by cluster analysis and their survival in the prospective European Scleroderma Trials and Research cohort of patients with systemic sclerosis. Arthritis & Rheumatology, 71(9), 1553-1570. doi: 10.1002/art.40906

Wu, W., Jordan, S., Graf, N., de Oliveira Pena, J., Curram, J., Allanore, Y., … EUSTAR Collaborators, including Stebbings, S., Highton, J., Stamp, L., Chapman, P., & O'Donnell, J. (2019). Progressive skin fibrosis is associated with a decline in lung function and worse survival in patients with diffuse cutaneous systemic sclerosis in the European Scleroderma Trials and Research (EUSTAR) cohort. Annals of the Rheumatic Diseases, 78(5), 648-656. doi: 10.1136/annrheumdis-2018-213455

Yeo, E., Palmer, S. C., Chapman, P. T., Frampton, C., & Stamp, L. K. (2019). Serum urate levels and therapy in adults treated with long-term dialysis: A retrospective cross-sectional study. Internal Medicine Journal, 49(7), 838-842. doi: 10.1111/imj.14163

Bursill, D., Taylor, W. J., Terkeltaub, R., Kuwabara, M., Merriman, T. R., Grainger, R., … Chapman, P. T., … Stamp, L. K., … Dalbeth, N. (2019). Gout, Hyperuricemia and Crystal-Associated Disease Network (G-CAN) consensus statement regarding labels and definitions for disease elements in gout. Arthritis Care & Research, 71(3), 427-434. doi: 10.1002/acr.23607

Stamp, L. K., Chapman, P. T., Barclay, M. L., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2018). How much allopurinol does it take to get to target urate? Comparison of actual dose with creatinine clearance-based dose. Arthritis Research & Therapy, 20, 255. doi: 10.1186/s13075-018-1755-0

Yeo, E., Palmer, S., Chapman, P. T., Frampton, C., & Stamp, L. K. (2018). Serum urate levels in people with gout on dialysis: Are we achieving treatment targets? Arthritis & Rheumatology, 70(9, Suppl.), 2230. doi: 10.1002/art.40700

Stamp, L. K., Chapman, P. T., Hudson, B., Hamilton, G., & Judd, A. (2018). The challenges of managing gout in primary care: Results of a best practice audit. Arthritis & Rheumatology, 70(9, Suppl.), 1265. doi: 10.1002/art.40700

Stamp, L. K., Chapman, P. T., Barclay, M., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2018). Can we predict inadequate response to allopurinol dose escalation? Analysis of a randomized controlled trial. Arthritis & Rheumatology, 70(9, Suppl.), 2229. doi: 10.1002/art.40700

Stamp, L., Chapman, P., Barclay, M., Horne, A., Tan, P., Drake, J., & Dalbeth, N. (2018). Can we predict inadequate response to allopurinol dose escalation? Analysis of a randomized controlled trial. Scandinavian Journal of Rheumatology, 47(Suppl. 129), (pp. 40-41). doi: 10.1080/03009742.2018.1487639

Stamp, L., Chapman, P., Hudson, B., Hamilton, G., & Judd, A. (2018). The challenges of managing gout in primary care: Results of a best practice audit. Scandinavian Journal of Rheumatology, 47(Suppl. 129), (pp. 6). doi: 10.1080/03009742.2018.1487639

Stamp, L. K., Chapman, P. T., Barclay, M., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2018). Can we predict inadequate response to allopurinol dose escalation? Analysis of a randomised controlled trial. Rheumatology, 57(12), 2183-2189. doi: 10.1093/rheumatology/key237

Stamp, L. K., Chapman, P. T., Barclay, M., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2017). The effect of kidney function on the urate lowering effect and safety of increasing allopurinol above doses based on creatinine clearance: A post hoc analysis of a randomized controlled trial. Arthritis Research & Therapy, 19(1), 283. doi: 10.1186/s13075-017-1491-x

Stamp, L. K., Chapman, P. T., Barclay, M., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2017). Allopurinol dose escalation to achieve serum urate below 6mg/Dl: An open label extension study. Arthritis & Rheumatology, 69(Suppl. 10), 1105. doi: 10.1002/art.40321

McQueen, F. M., Chapman, P. T., Pollock, T., D'Souza, D., Lee, A., Dalbeth, N., Stamp, L. K., … Doyle, A. (2017). Changes in clinical disease activity are associated with changes in the total MRI inflammation score in rheumatoid arthritis patients who are escalating therapy in a treat-to-target (T2T) regimen. Arthritis & Rheumatology, 69(Suppl. 10), 1992. doi: 10.1002/art.40321

McQueen, F. M., Chapman, P., Pollock, T., D’Souza, D., Lee, A. C., Dalbeth, N., Stamp, L., … Doyle, A. (2017). Changes in clinical disease activity are weakly linked to changes in MRI inflammation on treat-to-target escalation of therapy in rheumatoid arthritis. Arthritis Research & Therapy, 19, 241. doi: 10.1186/s13075-017-1433-7

Stamp, L. K., Haslett, J., Chapman, P., O'Donnell, J., Raja, R., Rothwell, A., Frampton, C., & Hooper, G. (2017). Rates of joint replacement surgery in New Zealand, 1999-2015: A comparison of rheumatoid arthritis and osteoarthritis. Journal of Rheumatology, 44(12), 1823-1827. doi: 10.3899/jrheum.170551

Stamp, L. K., Chapman, P. T., Barclay, M., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2017). Allopurinol dose escalation to achieve serum urate below 6 mg/dL: An open-label extension study. Annals of the Rheumatic Diseases, 76(12), 2065-2070. doi: 10.1136/annrheumdis-2017-211873

Wright, S., Chapman, P. T., Frampton, C., O'Donnell, J. L., Raja, R., & Stamp, L. K. (2017). Management of gout in a hospital setting: A lost opportunity. Journal of Rheumatology, 44(10), 1493-1498. doi: 10.3899/jrheum.170387

Harun, S., Chambers, S., Hooper, G., Frampton, C., Chapman, P., Mohammed, R., … Haslett, J., Nolan, I., & Stamp, L. (2017). Prosthetic joint infections in Canterbury, New Zealand: A comparison of individuals with and without a rheumatic disease. Internal Medicine Journal, 47(Suppl. 2), (pp. 21). doi: 10.1111/imj.13426

McQueen, F., Chapman, P., Pollock, T., D'Souza, D., Lee, A., Dalbeth, N., Stamp, L., … Doyle, A. (2017). Changes in the total MRI inflammation score as associated with changes in clinical disease activity in RA patients who are escalating therapy in a treat-to-target (T2T) regimen. Internal Medicine Journal, 47(Suppl. 2), (pp. 8-9). doi: 10.1111/imj.13426

Stamp, L. K., Chapman, P. T., Barclay, M. L., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2017). A randomised controlled trial of the efficacy and safety of allopurinol dose escalation to achieve target serum urate in people with gout. Annals of the Rheumatic Diseases, 76(9), 1522-1528. doi: 10.1136/annrheumdis-2016-210872

Wright, D. F. B., Doogue, M. P., Barclay, M. L., Chapman, P. T., Cross, N. B., Irvine, J. H., & Stamp, L. K. (2017). A population pharmacokinetic model to predict oxypurinol exposure in patients on haemodialysis. European Journal of Clinical Pharmacology, 73, 71-78. doi: 10.1007/s00228-016-2133-y

Farquhar, H. J., McGettigan, B., Chapman, P. T., O'Donnell, J. L., Frampton, C., & Stamp, L. K. (2017). Incidence of anti-neutrophil cytoplasmic antibody-associated vasculitis before and after the February 2011 Christchurch Earthquake. Internal Medicine Journal, 47(1), 57-61. doi: 10.1111/imj.13246

Stamp, L., Chapman, P., Barclay, M., Horne, A., Frampton, C., Tan, P., … Dalbeth, N. (2016, August). The safety and efficacy of allopurinol dose escalation in people with gout: A randomised controlled trial. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Napier, New Zealand.

Farquhar, H., McGettigan, B., O'Donnell, J., Chapman, P., Frampton, C., & Stamp, L. (2016, August). Incidence of ANCA associated vasculitis before and after the February 2011 Christchurch earthquake. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Napier, New Zealand.

Chapman, P. (2016, September). Rheumatology update. Plenary presentation at the New Zealand Association of Musculoskeletal Medicine (NZAMSM) Scientific Meeting, Christchurch, New Zealand.

Wright, D. F. B., Doogue, M. P., Barclay, M. L., Chapman, P. T., Cross, N. B., Irvine, J. H., & Stamp, L. K. (2016). Predicting oxypurinol exposure in patients receiving intermittent haemodialysis. Proceedings of the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists (ASCEPT) Annual Scientific Meeting. (pp. 48). Retrieved from http://www.queenstownresearchweek.org/index.php/ascept-nz/

Stamp, L. K., Chapman, P. T., & Palmer, S. C. (2016). Allopurinol and kidney function: An update. Joint Bone Spine, 83, 19-24. doi: 10.1016/j.jbspin.2015.03.013

de Lautour, H., Taylor, W. J., Adebajo, A., Alten, R., Burgos-Vargas, R., Chapman, P., … Stamp, L. K., … Dalbeth, N. (2016). Development of preliminary remission criteria for gout using Delphi and 1000Minds® consensus exercises. Arthritis Care & Research, 68(5), 667-672. doi: 10.1002/acr.22741

Stamp, L. K., Chapman, P. T., Francis, J., Beckert, L., Frampton, C., Watts, R. A., & O'Donnell, J. L. (2015). Association between environmental exposures and granulomatosis with polyangiitis in Canterbury, New Zealand. Arthritis Research & Therapy, 17, 333. doi: 10.1186/s13075-015-0852-6

Chapman, P. (2015, September). A negative biopsy [Panel discussion: Three cases]. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Stamp, L., Frampton, C., Hooper, G., Rothwell, A., & Chapman, P. (2015, September). Joint replacement surgery in inflammatory arthritis: Changes over time. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Stamp, L., Hamilton, S., Chapman, P., & Judd, A. (2015, September). Audit of gout management in primary care. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Johnston, M. E., Treharne, G. J., Chapman, P. T., & Stamp, L. K. (2015). Patient information about gout: An international review of existing educational resources. Journal of Rheumatology, 42(6), 975-978. doi: 10.3899/jrheum.141442

Stamp, L. K., Chapman, P. T., Watts, R. A., Frampton, C., & O'Donnell, J. L. (2014). Environmental risk factors for granulomatous polyangiitis (GPA): Southern hemisphere similar to northern hemisphere. Arthritis & Rheumatology, 66(10, Suppl.), (pp. S772). doi: 10.1002/art.38914

McGettigan, B., O'Donnell, J. L., Chapman, P. T., Frampton, C., & Stamp, L. K. (2014). An analysis of the incidence and characteristics of ANCA positive vasculitis before and after the Christchurch Earthquake. Arthritis & Rheumatology, 66(10, Suppl.), (pp. S771-S772). doi: 10.1002/art.38914

Stamp, L. K., Chapman, P. T., O'Donnell, J. L., Khalilova, I., Turner, R., & Kettle, A. (2014). Oxidative stress from use of allopurinol: Is there a reason for patients with gout to take vitamin C? Arthritis & Rheumatology, 66(10, Suppl.), (pp. S532-S533). doi: 10.1002/art.38914

Johnston, M., Treharne, G., Chapman, P. T., & Stamp, L. K. (2014). Self-management education for patients with gout: A review of existing resources. Arthritis & Rheumatology, 66(10, Suppl.), (pp. S72-S73). doi: 10.1002/art.38914

Stamp, L., Chapman, P., Frampton, C., & O'Donnell, J. (2014, August). Environmental risk factors for granulomatous polyangiitis. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Dunedin, New Zealand.

Stamp, L. K., & Chapman, P. T. (2014). Urate-lowering therapy: Current options and future prospects for elderly patients with gout. Drugs & Aging, 31(11), 777-786. doi: 10.1007/s40266-014-0214-0

Sies, C. W., Florkowski, C. M., Frampton, C. M. A., O'Donnell, J. L., Chapman, P. T., & Stamp, L. K. (2014). Comparison of two plasma urate assays in patients receiving vitamin C supplementation [Chemical pathology]. Pathology, 46(4), 333-335. doi: 10.1097/pat.0000000000000095

Prowse, R. L., Dalbeth, N., Kavanaugh, A., Adebajo, A. O., Gaffo, A. L., Terkeltaub, R., … Stamp, L. K., … Chapman, P., … Grainger, R., … Taylor, W. J. (2013). A Delphi exercise to identify characteristic features of gout: Opinions from patients and physicians, the first stage in developing new classification criteria. Journal of Rheumatology, 40(4), 498-505. doi: 10.3899/jrheum.121037

Coman-Wright, N., Chapman, P. T., O'Donnell, J. L., & Stamp, L. K. (2013). Allopurinol dose above creatinine clearance based dose is safe and effective in gout: Compliance, efficacy and safety at 2 and 3 Years. Arthritis & Rheumatism, 65(10, Suppl.), (pp. S507). doi: 10.1002/art.38216

Stamp, L. K., O'Donnell, J. L., Frampton, C., Drake, J. M., Zhang, M., & Chapman, P. T. (2013). Clinically insignificant effect of supplemental vitamin C on serum urate in patients with gout: A pilot randomized controlled trial. Arthritis & Rheumatism, 65(6), 1636-1642. doi: 10.1002/art.37925

Khan, E. A. R., Stamp, L. K., O'Donnell, J. L., & Chapman, P. T. (2013). Cardiovascular morbidity in rheumatoid arthritis patients in North Canterbury, New Zealand 1999–2008. International Journal of Rheumatic Diseases, 16(1), 19-23. doi: 10.1111/1756-185x.12008

Stamp, L. K., & Chapman, P. T. (2013). Gout and its comorbidities: Implications for therapy. Rheumatology, 52(1), 34-44. doi: 10.1093/rheumatology/kes211

Stamp, L. K., Frampton, C., O'Donnell, J. L., Drake, J., & Chapman, P. T. (2012). Lack of effect of supplemental vitamin C on serum urate in patients with gout. Arthritis & Rheumatism, 64(10, Suppl.), (pp. S60-S61). doi: 10.1002/art.37735

Raja, R., Chapman, P. T., O'Donnell, J. L., Ipenburg, J., Frampton, C., Hurst, M., & Stamp, L. K. (2012). Comparison of the 2010 American College of Rheumatology/European League Against Rheumatism and the 1987 American Rheumatism Association classification criteria for rheumatoid arthritis in an early arthritis cohort in New Zealand. Journal of Rheumatology, 39(11). doi: 10.3899/jrheum.120226

Stamp, L. K., Barclay, M. L., O'Donnell, J. L., Zhang, M., Drake, J., Frampton, C., & Chapman, P. T. (2012). Furosemide increases plasma oxypurinol without lowering serum urate—a complex drug interaction: Implications for clinical practice. Rheumatology, 51(9), 1670-1676. doi: 10.1093/rheumatology/kes091

Khan, A. R., Chapman, P. T., Stamp, L. K., Wells, J. E., & O'Donnell, J. L. (2012). Wegener's granulomatosis: Treatment and survival characteristics in a high-prevalence southern hemisphere region [Brief communication]. Internal Medicine Journal, 42(4), e23-e26. doi: 10.1111/j.1445-5994.2011.02700.x

Stamp, L. K., & Chapman, P. T. (2012). Gout and organ transplantation. Current Rheumatology Reports, 14(2), 165-172. doi: 10.1007/s11926-012-0235-9

Stamp, L. K., Ipenburg, J., Hurst, M., O'Donnell, J. L., Raja, R., Drake, J., & Chapman, P. T. (2012). The Christchurch earthquake: Providing a rheumatology service during a natural disaster [Brief report]. Clinical Rheumatology, 31(4), 723-725. doi: 10.1007/s10067-011-1913-0

Stamp, L., Ipenburg, J., Hurst, M., Mohammed, R., O'Donnell, J., Drake, J., & Chapman, P. (2011, August). The Christchurch Earthquake: Providing a rheumatology service during a natural disaster. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Auckland, New Zealand.

Stamp, L., Drake, J., O'Donnell, J., Frampton, C., & Chapman, P. (2011, August). Effects of frusemide on serum urate and oxypurinol concentrations in patients with gout on allopurinol. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Auckland, New Zealand.

Stamp, L. K., Chapman, P. T., Barclay, M., Kremer, J. M., & Dervieux, T. (2011). Red blood cell folate polyglutamates are an important determinant of RA disease activity in patients on Methotrexate: Implications for folic acid supplementation. Arthritis & Rheumatism, 63(Suppl. 10), (pp. S961-S962). doi: 10.1002/art.33310

Stamp, L. K., Barclay, M. L., O'Donnell, J. L., Zhang, M., Drake, J., Frampton, C., & Chapman, P. T. (2011). Effects of changing from oral to subcutaneous methotrexate on red blood cell methotrexate polyglutamate concentrations and disease activity in patients with rheumatoid arthritis. Journal of Rheumatology, 38(12), 2540-2547. doi: 10.3899/jrheum.110481

Stamp, L. K., Barclay, M. L., O'Donnell, J. L., Zhang, M., Drake, J., Frampton, C., & Chapman, P. T. (2011). Relationship between serum urate and plasma oxypurinol in the management of gout: Determination of minimum plasma oxypurinol concentration to achieve a target serum urate level. Clinical Pharmacology & Therapeutics, 90(3), 392-398. doi: 10.1038/clpt.2011.113

Stamp, L. K., & Chapman, P. (2011). Existing and emerging therapies for acute gout and long-term urate lowering. Current Rheumatology Reviews, 7(2), 141-151. doi: 10.2174/157339711795305031

Raja, R., Chapman, P., O'Donnell, J., Ipenburg, J., & Stamp, L. (2011). Comparison of the 2010 ACR/EULAR and the 1987 ACR classification criteria for RA in an early arthritis cohort in New Zealand. Internal Medicine Journal, 41(Suppl. 1), (pp. 19). doi: 10.1111/j.1445-5994.2010.02466.x

Stamp, L. K., O'Donnell, J. L., Zhang, M., James, J., Frampton, C., Barclay, M. L., & Chapman, P. T. (2011). Using allopurinol above the dose based on creatinine clearance is effective and safe in patients with chronic gout, including in those with renal impairment. Arthritis & Rheumatism, 63(2), 412-421. doi: 10.1002/art.30119

Khan, E., Stamp, L., O'Donnell, J., & Chapman, P. (2010, August). Cardiovascular risk in rheumatoid arthritis (RA) patients in North Canterbury 1999 - 2009. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Christchurch, New Zealand.

Khan, E., Chapman, P., Stamp, L., Wells, J. E., & O'Donnell, J. (2010, August). Wegner's Granulomatosis: Treatment and survival characteristics in Canterbury, New Zealand. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Christchurch, New Zealand.

Stamp, L. K., O'Donnell, J. L., Chapman, P., Zhang, M., James, J., Frampton, C., & Barclay, M. (2010). The effect on MTX polyglutamate concentration profile after changing from oral to subcutaneous methotrexate in rheumatoid arthritis. Arthritis & Rheumatism, 62(Suppl. 10). doi: 10.1002/art.30166

Stamp, L. K., O'Donnell, J. L., Zhang, M., James, J., Frampton, C., Barclay, M. L., & Chapman, P. T. (2010). Using allopurinol above the dose based on creatinine clearance is effective and safe in chronic gout, including in those with renal impairment. Proceedings of the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists New Zealand Annual Scientific Meeting and the 6th Annual Carney Pharmacogenomics Symposium. ASCEPT. Retrieved from http://www.ascept.org.nz/

Barclay, M. L., Stamp, L. K., O'Donnell, J. L., Zhang, M., Drake, J., Frampton, C., & Chapman, P. T. (2010). Effects of changing from oral to subcutaneous administration of methotrexate on RBC MTX polyglutamate concentrations and disease activity in patients with rheumatoid arthritis. Proceedings of the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists New Zealand Annual Scientific Meeting and the 6th Annual Carney Pharmacogenomics Symposium. ASCEPT. Retrieved from http://www.ascept.org.nz/

Stamp, L. K., O'Donnell, J. L., Barclay, M. L., Frampton, C., & Chapman, P. T. (2010). Response to comments [Letter to the editor]. Arthritis & Rheumatism, 62(8), 2560-2561. doi: 10.1002/art.27539

Stamp, L. K., Chapman, P. T., O'Donnell, J. L., Zhang, M., James, J., Frampton, C., Barclay, M. L., Kennedy, M. A., & Roberts, R. L. (2010). Polymorphisms within the folate pathway predict folate concentrations but are not associated with disease activity in rheumatoid arthritis patients on methotrexate. Pharmacogenetics & Genomics, 20(6), 367-376. doi: 10.1097/FPC.0b013e3283398a71

Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Zhang, M., James, J., Frampton, C., & Barclay, M. L. (2010). Methotrexate polyglutamate concentrations are not associated with disease control in rheumatoid arthritis patients receiving long-term methotrexate therapy. Arthritis & Rheumatism, 62(2), 359-368. doi: 10.1002/art.27201

White, D. H. N., Chapman, P. T., O'Donnell, J. L., James, J., Frampton, C., & Stamp, L. K. (2010). Lack of association between elevated mean red cell volume and haematological toxicity in patients receiving long-term methotrexate for rheumatoid arthritis. Internal Medicine Journal, 40(8), 561-565. doi: 10.1111/j.1445-5994.2009.02059.x

Roberts, R. L., O'Donnell, J. L., Chapman, P. T., Zhang, M., James, J., Frampton, C., Kennedy, M. A., Barclay, M. L., & Stamp, L. K. (2009). Genetic polymorphisms in the folate pathway predict red blood cell folate concentrations but not methotrexate response in rheumatoid arthritis. Proceedings of the 5th Annual Carney Pharmacogenomics Symposium. Retrieved from http://www.otago.ac.nz/christchurch/otago019049.pdf

Stamp, L., O'Donnell, J. L., Zhang, M., Frampton, C., Barclay, M., & Chapman, P. T. (2009). Increasing allopurinol dose above the recommended range is effective and safe in chronic gout, including in those with renal impairment: A pilot study. Arthritis & Rheumatism, 60(Suppl. 10), (pp. S729). doi: 10.1002/art.27423

Khan, A. R., Chapman, P. T., Stamp, L. K., Wells, J. E., & O'Donnell, J. (2009). Wegener's Granulomatosis: Treatment and survival characteristics in Canterbury, New Zealand. Internal Medicine Journal, 39(Suppl. 2), (pp. A57). doi: 10.1111/j.1445-5994.2009.01952.x

Stamp, L., O'Donnell, J. L., Zhang, M., Frampton, C., Chapman, P. T., & Barclay, M. (2009). Relationship between serum urate and plasma oxypurinol: Is there a target plasma oxypurinol concentration to achieve serum urate ≤6mg/dL. Arthritis & Rheumatism, 60(Suppl. 10), (pp. S561). doi: 10.1002/art.27423

Stamp, L., O'Donnell, J. L., Chapman, P. T., Zhang, M., Frampton, C., Barclay, M., Kennedy, M., & Roberts, R. (2009). Functional polymorphisms within the folate pathway predict red blood cell folate concentrations but are not associated with methotrexate response in RA. Arthritis & Rheumatism, 60(Suppl. 10), (pp. S150). doi: 10.1002/art.27423

Barclay, M. L., Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Zhang, M., Frampton, C., & James, J. (2009). Determinants of red blood cell methotrexate polyglutamate concentrations in patients with rheumatoid arthritis on long-term methotrexate. In D. Hay & S. Ngo (Eds.), Proceedings of the 43rd Annual Scientific Meeting of the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists. 14. ASCEPT. [Abstract]

Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Zhang, M., James, J., Frampton, C., & Barclay, M. L. (2009, September). Methotrexate polygutamate concentrations are not associated with disease control or toxicity in rheumatoid arthritis patients on long-term MTX. Verbal presentation at the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists New Zealand Annual Scientific Meeting, Dunedin, New Zealand.

Roberts, R. L., O'Donnell, J. L., Chapman, P. T., Zhang, M., James, J., Frampton, C., Kennedy, M. A., Barclay, M. L., & Stamp, L. K. (2009, September). Genetic polymorphisms in the folate pathway are predictive of red blood cell folate concentrations but not methotrexate response in rheumatoid arthritis patients. Verbal presentation at the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists New Zealand Annual Scientific Meeting, Dunedin, New Zealand.

Barclay, M. L., Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Zhang, M., Frampton, C., & James, J. (2009, September). Determinants of red blood cell methotrexate polyglutamate concentrations in patients with rheumatoid arthritis on long-term MTX. Verbal presentation at the Australasian Society of Clinical and Experimental Pharmacologists and Toxicologists New Zealand Annual Scientific Meeting, Dunedin, New Zealand.

Stamp, L. K., O'Donnell, J. L., Zhang, M., Frampton, C., James, J., Barclay, M., & Chapman, P. T. (2009). Relationship between allopurinol dose, plasma oxypurinol concentration and serum urate. Internal Medicine Journal, 39(Suppl. 2), (pp. A43). doi: 10.1111/j.1445-5994.2009.01951_1.x

Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Zhang, M., Frampton, C., James, J., & Barclay, M. L. (2009). Determinants of methotrexate red blood cell polyglutamates in patients with rheumatoid arthritis on long-term MTX. Internal Medicine Journal, 39(Suppl. 2), (pp. A43). doi: 10.1111/j.1445-5994.2009.01951_1.x

Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Zhang, M., Frampton, C., James, J., & Barclay, M. L. (2009). Determinants of red blood cell methotrexate polyglutamate concentrations in rheumatoid arthritis patients receiving long-term methotrexate treatment. Arthritis & Rheumatism, 60(8), 2248-2256. doi: 10.1002/art.24653

Hollis-Moffatt, J. E., Merriman, M. E., Green, R. A., Rowley, K. A., Chapman, P. T., Dalbeth, N., … Harrison, A. A., Highton, J., … O'Donnell, J. L., Stamp, L. K., & Merriman, T. R. (2009). Evidence for association of an interleukin 23 receptor variant independent of the R381Q variant with rheumatoid arthritis. Annals of the Rheumatic Diseases, 68(8), 1340-1344. doi: 10.1136/ard.2008.090142

Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Barclay, M. L., Kennedy, M. A., Frampton, C. M. A., & Roberts, R. L. (2009). Lack of association between HLA-G 14 bp insertion/deletion polymorphism and response to longterm therapy with methotrexate response in rheumatoid arthritis [Letter]. Annals of the Rheumatic Diseases, 68(1), 154-155. doi: 10.1136/ard.2008.089383

White, D. H. N., Chapman, P. T., O'Donnell, J. L., James, J., Frampton, C., & Stamp, L. K. (2008, September). Lack of association between elevated mean red cell volume and haematological toxicity in patients receiving methotrexate for rheumatoid arthritis. Verbal presentation at the New Zealand Rheumatology Association Conference, Hamilton, New Zealand.

Khan, A. R., O'Donnell, J. L., Stamp, L., & Chapman, P. (2008, September). Are crystals enough? Verbal presentation at the New Zealand Rheumatology Association Conference, Hamilton, New Zealand.

Drennan, P. G., Troughton, R., Chapman, P. T., O'Donnell, J. L., Richards, A. M., Frampton, C., & Stamp, L. (2008). Determining the association between N terminal pro-brain natriuretic peptide (NT-proBNP) and systemic inflammation in patients with RA. Internal Medicine Journal, 38(Suppl. 2), (pp. A23). doi: 10.1111/j.1445-5994.2008.01691.x

White, D., Chapman, P., O'Donnell, J., James, J., & Stamp, L. (2008). Is an elevated mean red cell volume predictive of haematological toxicity in patients taking methotrexate? Internal Medicine Journal, 38(Suppl. 2), (pp. A28). doi: 10.1111/j.1445-5994.2008.01691.x

Stamp, L. K., O'Donnell, J., Chapman, P., Zhang, M., Frampton, C., & Barclay, M. (2008). Methotrexate polyglutamates and disease activity in rheumatoid arthritis. Arthritis & Rheumatism, 58(Suppl. 9), (pp. S544). [Abstract]

Dalrymple, J., Stamp, L. K., O'Donnell, J., Chapman, P., Zhang, M., & Barclay, M. (2008). Pharmacokinetics of oral MTX in RA patients. Arthritis & Rheumatism, 58(Suppl.9), (pp. S311). [Abstract]

Dalrymple, J. M., Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Zhang, M., & Barclay, M. L. (2008). Pharmacokinetics of oral methotrexate in patients with rheumatoid arthritis. Arthritis & Rheumatism, 58(11), 3299-3308.

Taylor, W. J., Schumacher, Jr, H. R., Baraf, H. S. B., Chapman, P., Stamp, L., Doherty, M., … Grainger, R., … Barskova, V. G. (2008). A modified Delphi exercise to determine the extent of consensus with OMERACT outcome domains for studies of acute and chronic gout. Annals of the Rheumatic Diseases, 67(6), 888-891. doi: 10.1136/ard.2007.079970

McKinney, C., Merriman, M. E., Chapman, P. T., Gow, P. J., Harrison, A. A., Highton, J., … O'Donnell, J. L., … Stamp, L. K., Willis, J., … Merriman, T. R. (2008). Evidence for an influence of chemokine ligand 3-like 1 (CCL3L1) gene copy number on susceptibility to rheumatoid arthritis. Annals of the Rheumatic Diseases, 67, 409-413. doi: 10.1136/ard.2007.075028

Taylor, W. J., Harrison, A. A., Highton, J., Chapman, P., Stamp, L., Dockerty, J., … Sew Hoy, M. (2008). Disease Activity Score 28-ESR bears a similar relationship to treatment decisions across different rheumatologists, but misclassification is too frequent to replace physician judgement. Rheumatology, 47, 514-518. doi: 10.1093/rheumatology/ken004

Phipps-Green, A., Merriman, M., Chapman, P., . . ., Harrison, A., Highton, J., … O'Donnell, J., Stamp, L., & Merriman, T. (2007, August-September). Confirmation of a third locus that confers genetic susceptibility to rheumatoid arthritis. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

Chapman, P. (2007, August-September). An elusive patient with an elusive diagnosis. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

McKinney, C., Merriman, M., Chapman, P., . . ., Harrison, A., Highton, J., … O'Donnell, J., Stamp, L., & Merriman, T. (2007, August-September). Low FcγRIIIB copy number is associated with rheumatoid arthritis in a New Zealand cohort. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

Hollis-Moffatt, J., Xu, X., Merriman, M., Chapman, P., Dalbeth, N., Gow, P., Harrison, A., Highton, J., … O'Donnell, J., Stamp, L., & Merriman, T. (2007, August-September). The urate transporter 1 (URAT1) gene and gout in Polynesian New Zealanders. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

Gendall, K., Colgan, Rodger, R., Merriman, M., Chapman, P., . . ., Harrison, A., Highton, J., … O'Donnell, J., Stamp, L., … Merriman, T. (2007, August-September). The BCL2 gene and aetiology of autoimmune disease. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

Merriman, T., Merriman, M., Chapman, P., . . ., Harrison, A., Highton, J., … O'Donnell, J., Stamp, L., & Hollis-Moffatt, J. (2007, August-September). Genetic distinction between rheumatoid arthritis and other auto immune diseases: The Interleukin 23 receptor gene. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

Dalrymple, J. M., Stamp, L. K., Zhang, M., Chapman, P. T., O'Donnell, J. L., & Barclay, M. L. (2007, August). The elimination of red blood cell methotrexate polyglutamates in patients with rheumatoid arthritis. Verbal presentation at the Australasian Society of Clinical and Experimental Pharmacologists & Toxicologists (NZ) Annual Scientific Meeting, Auckland, New Zealand.

Stamp, L. K., O'Donnell, J. L., Chapman, P. T., Frampton, C., Barclay, M. L., Kennedy, M., & Roberts, R. L. (2007, August-September). HLA-G 14BP polymorphism is not associated with response to methotrexate in rheumatoid arthritis. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

Dalrymple, J., Barclay, M., Chapman, P., O'Donnell, J., Zhang, M., & Stamp, L. (2007, August-September). The elimination of red blood cell methotrexate polyglutamates in patients with rheumatoid arthritis. Verbal presentation at the New Zealand Rheumatology Association Conference, Dunedin, New Zealand.

Meuli, K. A., Stamp, L. K., O'Donnell, J. L., Savage, R. L., & Chapman, P. T. (2007). Leflunomide-associated infections in RA. Internal Medicine Journal. 37(Suppl. 2), (pp. A48). [Abstract]

Stamp, L., Barclay, M., Zhang, M., James, J., Frampton, C., O'Donnell, J., & Chapman, P. (2007). Red cell folate may be an important determinant of response to methotrexate in rheumatoid arthritis. Internal Medicine Journal, 37(Suppl. 2), (pp. A54). doi: 10.1111/j.1445-5994.2007.01428.x

Jenks, K. A., Stamp, L. K., O'Donnell, J. L., Savage, R. L., & Chapman, P. T. (2007). Leflunomide-associated infections in rheumatoid arthritis. Journal of Rheumatology, 34, 2201-2203.

O'Donnell, J. L., Stevanovic, V. R., Frampton, C., Stamp, L. K., & Chapman, P. T. (2007). Wegener's granulomatosis in New Zealand: Evidence for a latitude-dependent incidence gradient. Internal Medicine Journal, 37, 242-246.

Meuli, K., Chapman, P., O'Donnell, J., Frampton, C., & Stamp, L. (2007). Audit of pneumocystis pneumonia in patients seen by the Christchurch Hospital rheumatology service over a 5-year period. Internal Medicine Journal, 37, 687-692.

Stamp, L. K., O'Donnell, J. L., & Chapman, P. T. (2007). Emerging therapies in the long-term management of hyperuricaemia and gout. Internal Medicine Journal, 37, 258-266.

Steer, S., Abkevich, V., Gutin, A., Cordell, H. J., Gendall, K. L., Merriman, M. E., Green, R. A., Rowley, K. A., Chapman, P., … Harrison, A. A., Highton, J., … O'Donnell, J., Stamp, L., … Merriman, T. R. (2007). Genomic DNA pooling for whole-genome association scans in complex disease: Empirical demonstration of efficacy in rheumatoid arthritis. Genes & Immunity, 8, 57-68. doi: 10.1038/sj.gene.6364359

O'Donnell, J. L., Hayman, M. W., Spellerberg, M. B., McLellan, A. D., Brooksbank, K., Chapman, P. T., & Stamp, L. K. (2007). Antineutrophil cytoplasmic antibody measurement: Advantages and disadvantages of a capture PR3 ELISA and a direct PR3 ELISA. Pathology, 39(2), 258-263.

Highton, J., Harrison, A., and New Zealand Rheumatology Research Network, including Chapman, P., O'Donnell, J., & Stamp, L. (2006, August-September). Rheumatoid arthritis disease activity and change in therapy by NZ rheumatologists. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Meuli, K., Chapman, P., O'Donnell, J., & Stamp, L. (2006, August-September). An audit of pneumocystis pneumonia in rheumatology patients in the Canterbury region over a 5 year period. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Merriman, T., Chapman, P., Gow, P., Harrison, A., Highton, J., . . ., O'Donnell, J., Stamp, L., & et al (2006, August-September). Genomic DNA pooling for whole genome association scans in complex disease: Empirical demonstration of efficacy in rheumatoid arthritis. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Meuli, K., Chapman, P., O'Donnell, J., & Stamp, L. (2006, August-September). PUO in a patient with stable RA. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

O'Donnell, J. L., Stevanovic, V. R., Frampton, C., Stamp, L. K., & Chapman, P. T. (2006, August-September). Evidence for a latitudinal gradient in the incidence of Wegener's granulomatosis in the Southern Hemisphere. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Stamp, L., Dalrymple, J., Barclay, M., Zhang, M., James, J., Frampton, C., Chapman, P., & O'Donnell, J. (2006, August-September). Methotrexate management in rheumatoid arthritis: Is there a role for methotrexate polyglutamate measurement? Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Stamp, L., Ha, L., Chapman, P., O'Donnell, J., & Searle, M. (2006, August-September). The prevalence and management of gout in the renal transplant recipients in Canterbury, New Zealand. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Queenstown, New Zealand.

Hayman, M. W., Spellerberg, M. B., Brookshank, K., McLellan, A., Chapman, P. T., Stamp, L. K., & O'Donnell, J. L. (2006). Antineutrophil cytoplasmic antibody measurement by capture PR3 Elisa: Advantages and disadvantages. Annals of the Rheumatic Diseases, 65(Supp. II), (pp. 370-371). [Abstract]

Meuli, K. A., Chapman, P. T., O'Donnell, J. L., & Stamp, L. K. (2006). An audit of pneumocystis jiroveci pneumonia in rheumatology patients in the Canterbury region over a 5 year period. Internal Medicine Journal, 36(Suppl. 2), (pp. A85). doi: 10.1111/j.1445-5994.2006.01116.x

O'Donnell, J. L., Stevanovic, V. R., Frampton, C., Stamp, L. K., & Chapman, P. T. (2006). Evidence for a latitudinal gradient in the incidence of Wegener's granulomatosis in the Southern Hemisphere. Annals of the Rheumatic Diseases, 65(Suppl. II), (pp. 375-376). [Abstract]

Dalrymple, J., Barclay, M., Zhang, M., Chapman, P., O'Donnell, J., Frampton, C., & Stamp, L. (2006, November). The pharmacokinetics of accumulation of methotrexate polyglutamates in patients with rheumatoid arthritis. Verbal presentation at the Society of Hospital Pharmacists of Australia 5th Biennial Clinical Conference, Melbourne, Australia.

Dalrymple, J., Barclay, M., Zhang, M., Chapman, P., O'Donnell, J., Frampton, C., & Stamp, L. (2006, August-September). The pharmacokinetics of accumulation of methotrexate polyglutamates in patients with rheumatoid arthritis. Verbal presentation at the Australasian Society of Clinical and Experimental Pharmacologists & Toxicologists (New Zealand) Annual Scientific Meeting, Auckland, New Zealand.

Stamp, L., Ha, L., Searle, M., O'Donnell, J., Frampton, C., & Chapman, P. (2006). Gout in renal transplant recipients. Nephrology, 11(4), 367-371. doi: 10.1111/j.1440-1797.2006.00577.x

Stamp, L., Roberts, R., Kennedy, M., Barclay, M., O'Donnell, J., & Chapman, P. (2006). The use of low dose methotrexate in rheumatoid arthritis: Are we entering a new era of therapeutic drug monitoring and pharmacogenomics? Biomedicine & Pharmacotherapy, 60, 678-687.

Savage, R. L., Highton, J., Boyd, I. W., & Chapman, P. (2006). Pneumonitis associated with leflunomide: A profile of New Zealand and Australian reports. Internal Medicine Journal, 36, 162-169.

Gibson, A., Stamp, L. K., Chapman, P. T., & O'Donnell, J. L. (2006). The epidemiology of Wegener's granulomatosis and microscopic polyangiitis in a Southern Hemisphere region. Rheumatology, 45, 624-628. doi: 10.1093/rheumatology/kei259

Gibson, A. T. P., Chapman, P. T., O'Donnell, J. L., & Stamp, L. (2005, September). A pilot study: Therapeutic drug monitoring of azathioprine in rheumatoid arthritis. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Palmerston North, New Zealand.

Merriman, T., Chapman, P., Gow, P., Harrison, A., Highton, J., . . ., O'Donnell, J., … Stamp, L., & McKinney, C. (2005, September). Genetic causes of rheumatoid arthritis: The chemokine system. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Palmerston North, New Zealand.

Stamp, L., Gibson, A., Chapman, P., & O'Donnell, J. (2005, September). Many causes of a positive ANCA: The Canterbury experience. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Palmerston North, New Zealand.

Chapman, P. T., Stamp, L. K., & O'Donnell, J. L. (2005, September). Anti-TNF therapy in adult rheumatic disease: Christchurch Hospital experience 2002-2005. Verbal presentation at the New Zealand Rheumatology Association Annual Scientific Meeting, Palmerston North, New Zealand.

Savage, R. L., Highton, J., Boyd, I. W., & Chapman, P. T. (2005, September). Pneumonitis with leflunomide: A profile of New Zealand and Australian reports. Verbal presentation at the New Zealand Rheumatology Association in conjunction with NZ Health Professionals in Rheumatology Annual Scientific Meeting, Palmerston North, New Zealand.

Wyeth, E. H., Highton, J., Chapman, P. T., O'Donnell, J. L., Jones, P. B. B., Gow, P. J., … Harrison, A. A., & Merriman, T. R. (2005). Association analysis of rheumatoid arthritis candidate susceptibility genes in New Zealand Maori. Arthritis & Rheumatism, 52(9, Suppl.), (pp. S582). [Abstract]

Stamp, L., Searle, M., O'Donnell, J., & Chapman, P. (2005). Gout in solid organ transplantation: A challenging clinical problem. Drugs, 65(18), 2593-2611. doi: 10.2165/00003495-200565180-00004

Gibson, A., Stamp, L. K., Chapman, P. T., & O'Donnell, J. L. (2005). The prevalence and clinical severity of Wegener's granulomatosis (WG) and microscopic polyangiitis (MPA) in Canterbury, New Zealand. Internal Medicine Journal, 35(Suppl.), (pp. A93). doi: 10.1111/j.1445-5994.2005.961.x

Ha, L., Chapman, P., Searle, M., O'Donnell, J., & Stamp, L. (2005, May). Gout in the sold organ transplant population of Canterbury New Zealand. Poster session presented at the 47th Annual Scientific Meeting of the Australian Rheumatology Association, Melbourne, Australia.

Lynn, S. J., Sawyers, S. M., Moller, P. W., O'Donnell, J. L., & Chapman, P. T. (2005). Adult-onset inflammatory myopathy: North Canterbury experience 1989-2001. Internal Medicine Journal, 35, 170-173.

Simkins, H. M. A., Merriman, M. E., Highton, J., Chapman, P. T., O'Donnell, J. L., Jones, P. B. B., … Harrison, A. A., & Merriman, T. R. (2005). Association of the PTPN22 locus with rheumatoid arthritis in a New Zealand Caucasian cohort. Arthritis & Rheumatism, 52(7), 2222-2225.

Robinson, J. N., Sandom, J., & Chapman, P. T. (2004). Efficacy of pamidronate in complex regional pain syndrome type 1. Pain Medicine, 5(3), 276-280.

Solanki, K., Spellerberg, M., Chapman, P., Moller, P., & O'Donnell, J. (2004). Anti-cyclic citrullinated antibodies: Complementary to IgM rheumatoid factor in the early diagnosis of rheumatoid arthritis. New Zealand Medical Journal, 117(1203). Retrieved from http://journal.nzma.org.nz/journal/117-1203/1097/content.pdf

Gibson, A., Stamp, L., Chapman, P. T., & O'Donnell, J. (2004). The five year period prevalence and clinical severity of Wegener's granulomatosis (WG) in the Canterbury, New Zealand. Proceedings of the Annual Scientific Meeting of the New Zealand Rheumatology Association and the New Zealand Health Professionals in Rheumatology. [Abstract]

Parker, S., & Chapman, P. T. (2003). Review of teratogenicity of methotrexate and leflunomide. Internal Medicine Journal, 33(Suppl.), (pp. A21). doi: 10.1046/j.1445-5994.2003.00001.x

Lynn, S., Sawyers, S. M., Moller, P. W., O'Donnell, J. L., & Chapman, P. T. (2003). Inflammatory myopathy: North Canterbury experience 1989-2001. Internal Medicine Journal, 33(Suppl.), (pp. A20). doi: 10.1046/j.1445-5994.2003.00001.x

Robinson, J. N., Sandom, J., Sew Hoy, M. D., & Chapman, P. T. (2003). Efficacy of pamidronate in complex regional pain syndrome type 1 (CRPS 1). Internal Medicine Journal, 33(Suppl.), (pp. A20). doi: 10.1046/j.1445-5994.2003.00001.x

Chapman, P. T., & O'Donnell, J. L. (2003). Exertion-induced rhabdomyolysis: Two cases. Internal Medicine Journal, 33(Suppl.), (pp. A16). doi: 10.1046/j.1445-5994.2003.00001.x

Burt, M. J., George, P. M., Upton, J. D., Collett, J. A., Chapman, P. T., Walmsley, T. A., Chapman, B. A., & Frampton, C. M. (1998). The frequency and effect on iron indices of haemochromatosis (HFE) gene mutations. Gut, 43, 830-836.

Harrison, A. A., Stocker, C. J., Chapman, P. T., Tsang, Y. T., Huehns, T. T., Gundel, R. H., … Haskard, D. O. (1997). Expression of vascular cell adhesion molecule-1 by vascular endothelial cells in immune and nonimmune inflammatory reactions in the skin. Journal of Immunology, 159(9), 4546-4554.

Chapman, P. T., Yarwood, H., Harrison, A., Stocker, C. J., Jamar, F., Gundel, R. H., … Haskard, D. O. (1997). Endothelial activation in monosodium urate monohydrate crystal-induced inflammation: in vitro and in vivo studies on the roles of tumor necrosis factor alpha and interleukin-1. Arthritis & Rheumatism, 40(5), 955-965.

Chapman, P. T., Jamar, F., Harrison, A., Schofield, J. B., Peters, A. M., Binns, R. M., & Haskard, D. O. (1996). Characterization of E-selectin expression, leucocyte traffic and clinical sequelae in urate crystal-induced inflamation: an insight into gout. British Journal of Rheumatology, 35, 323-334.

Davies, K. M., Chapman, P. T., Norsworthy, P. J., Jamar, F., Athanassiou, P., Keelan, E. T. M., Harrison, A., … Walport, P. J. (1995). Clearance pathways of soluble immune complexes in the pig: insights into the adaptive nature of antigen clearance in humans. Journal of Immunology, 155, 5760-5768.

Jamar, F., Chapman, P. T., Harrison, A., Binns, R. M., Haskard, D. O., & Peters, A. M. (1995). Inflamatory arthritis: imaging of endothelial cell activation with an indium-111-labeled F(ab')2 fragment of anti-E-selectin monoclonal. Radiology, 194, 843-850.

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