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  • William Tillett
2016

Let's Talk about Inclusion: A Report on Patient Research Partner Involvement in the GRAPPA 2015 Annual Meeting

Campbell, W., Coates, L. C., Gladman, D. D., James, J., Lindsay, C. A., MacDonald, R., Moverley, A. R., Ogdie, A., Orbai, A-M., O'Sullivan, D., Parkinson, A., Steinkoenig, I., Tillett, W. & Goel, N., May 2016, In : The Journal of Rheumatology. 43, 5, p. 970-973 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)
2018

Value of the Routine Assessment of Patient Index Data 3 in Patients With Psoriatic Arthritis: Results From a Tight-Control Clinical Trial and an Observational Cohort

Coates, L. C., Tillett, W., Shaddick, G., Pincus, T., Kavanaugh, A. & Helliwell, P. S., 1 Aug 2018, In : Arthritis Care and Research. 70, 8, p. 1198-1205 8 p.

Research output: Contribution to journalArticle

Open Access
File
7 Citations (Scopus)
42 Downloads (Pure)

Work Disability and the Cost-effectiveness of Drugs to Treat Rheumatic Diseases - Time for a New Dialogue?

Tillett, W. & Bojke, L., 1 Aug 2018, In : The Journal of Rheumatology. 45, 8, p. 1075-1077 3 p.

Research output: Contribution to journalArticle

Open Access
File
25 Downloads (Pure)
2020

AB0756 GUSELKUMAB IMPROVED WORK PRODUCTIVITY AND DAILY ACTIVITY IN PATIENTS WITH PSORIATIC ARTHRITIS: RESULTS FROM A PHASE 3 TRIAL

Curtis, J., Mcinnes, I., Rahman, P., Tillett, W., Mease, PJ., Kollmeier, A., Hsia, EC., Zhou, B., Agarwal, P. & Peterson, S., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

AB0839 RELIABILITY OF COMPOSITE MEASURES FOR THE ASSESSMENT OF PSORIATIC ARTHRITIS

Tillett, W., Helliwell, P., Fitzgerald, O., Waxman, R., Antony, A., Coates, LC., Jadon, D., Creamer, P., Lane, S. & Massarotti, M., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

2018
2 Citations (Scopus)
13 Downloads (Pure)
2020

OP0223 EFFICACY AND SAFETY OF UPADACITINIB IN PATIENTS WITH ACTIVE PSORIATIC ARTHRITIS AND INADEQUATE RESPONSE TO BIOLOGIC DISEASE-MODIFYING ANTI-RHEUMATIC DRUGS (SELECT-PSA-2): A DOUBLE-BLIND, RANDOMIZED CONTROLLED PHASE 3 TRIAL

Genovese, MC., Lertratanakul, A., Anderson, J., Papp, K., Tillett, W., Van den Bosch, F., Tsuji, S., Dokoupilova, E., Keiserman, M. & Wang, X., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

AB0811 DEMOGRAPHIC, TREATMENT AND DISEASE CHARACTERISTICS OF PATIENTS WITH PSORIATIC ARTHRITIS RECEIVING TOFACITINIB IN THE UNITED STATES, FRANCE, GERMANY, ITALY, SPAIN AND THE UNITED KINGDOM

Ogdie, A., Schmerold, L., Tillett, W., Germino, R., Cappelleri, JC. & Young, P., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

P280 Clinical burden of concomitant joint disease in psoriasis: a US-linked claims and electronic medical records database analysis

Tillett, W., Skornicki, M., Prince, P., Suruki, R., Lee, E. & Louder, A., 20 Apr 2020, In : Rheumatology. 59, Supplement2, p. ii129-ii129 1 p., P280.

Research output: Contribution to journalMeeting abstract

2 Citations (Scopus)
2018

Risk of uveitis and inflammatory bowel disease in people with psoriatic arthritis: a population based cohort study

Charlton, R., Green, A., Shaddick, G., Snowball, J., Nightingale, A., Tillett, W., Smith, C. & McHugh, N., 12 Jan 2018, In : Annals of the Rheumatic Diseases. 77, 2, p. 277-280 4 p.

Research output: Contribution to journalArticle

Open Access
File
14 Citations (Scopus)
61 Downloads (Pure)
2017

Updating the Psoriatic Arthritis (PsA) core domain set: A report from the PsA workshop at OMERACT 2016

Orbai, A-M., de Wit, M., Mease, P. J., Callis Duffin, K., Elmamoun, M., Tillett, W., Campbell, W., FitzGerald, O., Gladman, D. D., Goel, N., Gossec, L., Hoejgaard, P., Leung, Y. Y., Lindsay, C., Strand, V., van der Heijde, D. M., Shea, B., Christensen, R., Coates, L., Eder, L. & 4 others, McHugh, N., Kalyoncu, U., Steinkoenig, I. & Ogdie, A., 1 Oct 2017, In : The Journal of Rheumatology. 44, 10, p. 1522-1528 160904.

Research output: Contribution to journalArticle

File
53 Downloads (Pure)

Important treatment outcomes for patients with psoriatic arthritis: a multisitequalitative study

Dures, E., Hewlett, S., Lord, J., Bowen, C., McHugh, N. & Tillett, W., 22 Feb 2017, In : The patient.

Research output: Contribution to journalArticle

Open Access
File
16 Citations (Scopus)
212 Downloads (Pure)
2020

Outcomes of the 2019 GRAPPA workshop on continuous composite indices for the assessment of psoriatic arthritis and membership-recommended next steps

Tillett, W., McHugh, N., Orbai, A-M., Ogdie, A., Leung, Y. Y., Coates, L. C., Mease, P. J., Gladman, D. D., Brooke, M. & Packham, J., 1 Jun 2020, In : The Journal of Rheumatology. 96, p. 11-18 8 p.

Research output: Contribution to journalArticle

AB0735 SEVERITY OF NAIL PSORIASIS SCORE (SNAPS) DEMONSTRATES LONGITUDINAL CONSTRUCT VALIDITY AGAINST THE MODIFIED NAIL PSORIASIS SEVERITY INDEX (mNAPSI) IN AN OBSERVATIONAL COHORT OF PATIENTS WITH PSORIATIC ARTHRITIS

Antony, A., Saeed, S., Hart, D., Nair, P., Cavill, C., Korendowych, E., Mchugh, N., Lovell, C. & Tillett, W., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

2016

Novel Composite Radiographic Score for Longitudinal Observational Studies of Psoriatic Arthritis: A Proof-of-concept Study

Tillett, W., Shaddick, G., Jadon, D., Robinson, G., Korendowych, E. & McHugh, N., 15 Jan 2016, In : The Journal of Rheumatology.

Research output: Contribution to journalArticle

File
2 Citations (Scopus)
146 Downloads (Pure)
2020

Modifiable risk factors and the development of psoriatic arthritis in people with psoriasis

PROMPT Study Group, 31 Mar 2020, In : British Journal of Dermatology. 182, 3, p. 714-720 7 p.

Research output: Contribution to journalArticle

Open Access
File
3 Citations (Scopus)
7 Downloads (Pure)
2018

Classification and Outcome Measures for Psoriatic Arthritis

Leung, Y. Y., Ogdie, A., Orbai, A-M., Tillett, W., Coates, L. C., Strand, V., Mease, P. & Gladman, D. D., 1 Oct 2018, In : Frontiers in Medicine. 5, 246.

Research output: Contribution to journalReview article

Open Access
File
3 Citations (Scopus)
11 Downloads (Pure)

GRAPPA-OMERACT initiative to standardise outcomes in psoriatic arthritis clinical trials and longitudinal observational studies

Tillett, W., Orbai, A-M., Ogdie, A., Leung, Y. Y., Strand, V., Gladman, D. D., Mease, P. J. & Coates, L. C., 1 May 2018, In : Annals of the Rheumatic Diseases. 77, 5, p. 1-1 1 p., e23.

Research output: Contribution to journalLetter

Open Access
File
7 Citations (Scopus)
164 Downloads (Pure)
2020

The GRAPPA-OMERACT Working Group: 4 Prioritized Domains for Completing the Core Outcome Measurement Set for Psoriatic Arthritis 2019 Updates

Leung, Y. Y., Tillett, W., Orbai, A-M., Ogdie, A., Eder, L., Coates, L. C., Holland, R., Antony, A., Goel, N. & Mease, P. J., 30 Jun 2020, In : The Journal of Rheumatology and Supplements. 96, p. 46-49 4 p.

Research output: Contribution to journalArticle

AB0736 SEVERITY OF NAIL PSORIASIS SCORE (SNAPS) IS SENSITIVE TO CHANGE IN A COHORT OF PATIENTS WITH PSORIATIC ARTHRITIS TREATED WITH ETANERCEPT

Antony, A., Saeed, S., Hart, D., Nair, P., Cavill, C., Korendowych, E., Mchugh, N., Lovell, C. & Tillett, W., 1 May 2020, In : Annals of the Rheumatic Diseases. 79, Supplement 1, p. 1658-1658 1 p., AB0736.

Research output: Contribution to journalMeeting abstract

AB1241 EVALUATION OF A PATIENT COMPLETED DISEASE FLARE QUESTIONNAIRE IN PSORIATIC DISEASE

Helliwell, P., Tillett, W., Waxman, R., Coates, LC., Fitzgerald, O., Packham, J. & Mchugh, N., 1 May 2020.

Research output: Contribution to conferenceAbstract

Disease Characteristics and the Burden of Joint and Skin Involvement Amongst People With Psoriatic Arthritis: A Population Survey

Tillett, W., Merola, J. F., Thaçi, D., Holdsworth, E., Booth, N., Lobosco, L. S., Milligan, G., Hufford, M. M., Birt, J. A. & Boehncke, W-H., 30 Sep 2020, In : Rheumatology and therapy. 7, 3, p. 617-637 21 p.

Research output: Contribution to journalArticle

Open Access
2017

Composite Measures of Impact and Activity in Psoriatic Arthritis: A Conceptual Framework

Tillett, W., Mar 2017, In : The Journal of Rheumatology. 44, 3, p. 268-270 3 p.

Research output: Contribution to journalArticle

2016

The natural history of psoriatic arthritis

Tillett, W. & Helliwell, P. H., 2016, Psoriatic Arthritis and Psoriasis: Pathology and Clinical Aspects - Part II. Adebajo, A., Boehncke, W-H., Gladman, D. D. & Mease, P. J. (eds.). Switzerland: Springer International Publishing, p. 39-42

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)
2017

Defining Outcome Measures for Psoriatic Arthritis: A Report from the GRAPPA-OMERACT Working Group

Ogdie, A., de Wit, M., Callis Duffin, K., Campbell, W., Chau, J., Coates, L. C., Eder, L., Elmamoun, M., FitzGerald, O., Gladman, D. D., Goel, N., James, J. P., Kalyoncu, U., Latella, J., Lindsay, C., Mease, P. J., O'Sullivan, D., Steinkoenig, I., Strand, V., Tillett, W. & 1 others, Orbai, A-M., 1 May 2017, In : The Journal of Rheumatology. 44, 5, p. 697-700 4 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)
2018

A systematic review of measurement properties of patient reported outcome measures in psoriatic arthritis: A GRAPPA-OMERACT initiative

Højgaard, P., Klokker, L., Orbai, A-M., Holmsted, K., Bartels, E. M., Leung, Y. Y., Goel, N., de Wit, M., Gladman, D. D., Mease, P. J., Dreyer, L., Kristensen, L. E., Fitzgerald, O., Tillett, W., Gossec, L., Helliwell, P., Strand, V., Ogdie, A., Terwee, C. B. & Christensen, R., 1 Apr 2018, In : Seminars in Arthritis and Rheumatism. 47, 5, p. 654-665 12 p.

Research output: Contribution to journalReview article

Open Access
File
16 Citations (Scopus)
54 Downloads (Pure)
2020

Effect of filgotinib on health-related quality of life in active psoriatic arthritis: a randomized phase 2 trial (EQUATOR)

Orbai, A-M., Ogdie, A., Gossec, L., Tillett, W., Leung, Y. Y., Gao, J., Trivedi, M., Tasset, C., Meuleners, L., Besuyen, R., Hendrikx, T. & Coates, L. C., 1 Jul 2020, In : Rheumatology. 59, 7, p. 1495–1504 10 p., kez408.

Research output: Contribution to journalArticle

Open Access
File
16 Downloads (Pure)

FRI0358 USAGE OF C-REACTIVE PROTEIN TESTING IN THE DIAGNOSIS AND MONITORING OF PSORIATIC ARTHRITIS (PSA): RESULTS FROM A REAL-WORLD SURVEY IN THE US AND EUROPE

Ogdie, A., Tillett, W., Eder, L., Booth, N., Wirta, S. B., Howell, O., Schubert, A., Peterson, S., Chakravarty, SD. & Coates, LC., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

File
2 Downloads (Pure)
2017

International patient and physician consensus on a psoriatic arthritis core outcome set for clinical trials

Orbai, A-M., de Wit, M., Mease, P., Shea, J. A., Gossec, L., Leung, Y. Y., Tillett, W., Elmamoun, M., Callis Duffin, K., Campbell, W., Christensen, R., Coates, L., Dures, E., Eder, L., FitzGerald, O., Gladman, D., Goel, N., Grieb, S. D., Hewlett, S., Hoejgaard, P. & 7 others, Kalyoncu, U., Lindsay, C., McHugh, N., Shea, B., Steinkoenig, I., Strand, V. & Ogdie, A., 1 Apr 2017, In : Annals of the Rheumatic Diseases. 76, 4, p. 673-680

Research output: Contribution to journalArticle

Open Access
70 Citations (Scopus)

Interval between onset of psoriasis and psoriatic arthritis comparing the UK Clinical Practice Research Datalink with a hospital-based cohort

Tillett, W., Charlton, R., Nightingale, A., Snowball, J., Green, A., Smith, C., Shaddick, G., McHugh, N. & PROMPT study group, 1 Dec 2017, In : Rheumatology. 56, 12, p. 2109-2113

Research output: Contribution to journalArticle

Open Access
File
12 Downloads (Pure)

Risk of uveitis and inflammatory bowel disease in people with psoriatic arthritis: a population based cohort study

PROMPT Study Group, 2017, Rheumatology. Suppl 2 ed. Vol. 56. 2 p. 048

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2020

SAT0399 RISK OF OSTEOARTHRITIS IN AN INCIDENT COHORT OF PEOPLE WITH PSORIATIC ARTHRITIS: A POPULATION-BASED COHORT STUDY

Charlton, R., Green, A., Shaddick, G., Snowball, J., Nightingale, A., Tillett, W., Smith, C. & Mchugh, N., 1 May 2020, In : Annals of the Rheumatic Diseases. 79, Supplement 1, SAT0399.

Research output: Contribution to journalMeeting abstract

2016

Report of the GRAPPA-OMERACT Psoriatic Arthritis Working Group from the GRAPPA 2015 Annual Meeting

Orbai, A-M., Mease, P. J., de Wit, M., Kalyoncu, U., Campbell, W., Tillett, W., Eder, L., Elmamoun, M., FitzGerald, O., Gladman, D. D., Goel, N., Gossec, L., Lindsay, C. A., Steinkoenig, I., Helliwell, P. S., McHugh, N. J., Strand, V. & Ogdie, A., May 2016, In : The Journal of Rheumatology. 43, 5, p. 965-969 5 p.

Research output: Contribution to journalArticle

Open Access
File
18 Citations (Scopus)
132 Downloads (Pure)
2018

Exploring the illness representations of people with psoriatic arthritis: A secondary analysis of focus group data

On behalf of the PROMPT Study Group, 1 Jul 2018, In : Rheumatology Advances in Practice. 2, 2, p. 1-7 7 p.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

GRAPPA-OMERACT consensus-based recommendations and research agenda for use of composite measures and treatment targets in PsA

Coates, L. C., Fitzgerald, O., Merola, J. F., Smolen, J., van Mens, L. J. J., Bertheussen, H., Boehncke, W-H., Callis Duffin, K., Campbell, W., de Wit, M., Gladman, D. D., Gottlieb, A., James, J., Kavanaugh, A. F., Kristensen, L. E., Kvien, T. K., Luger, T., McHugh, N., Mease, P. J., Nash, P. & 6 others, Ogdie, A., Rosen, C. F., Strand, V., Tillett, W., Veale, D. J. & Helliwell, P. S., 31 Mar 2018, In : Arthritis & Rheumatology. 70, 3, p. 345-355

Research output: Contribution to journalArticle

Open Access
File
30 Citations (Scopus)
33 Downloads (Pure)
2017

Effect of anti-TNF and conventional synthetic disease-modifying anti-rheumatic drug treatment on work disability and clinical outcome in a multicentre observational cohort study of psoriatic arthritis

Tillett, W., Shaddick, G., Jobling, A., Askari, A., Cooper, A., Creamer, P., Clunie, G., Helliwell, P. S., James, J., Kay, L., Korendowych, E., Lane, S., Packham, J., Shaban, R., Thomas, M. L., Williamson, L. & McHugh, N., 1 Apr 2017, In : Rheumatology. 56, 4, p. 603-612

Research output: Contribution to journalArticle

Open Access
File
6 Citations (Scopus)
171 Downloads (Pure)
2018

The Benefits and Challenges of Setting Up a Longitudinal Psoriatic Arthritis Database

Gladman, D. D., Coates, L. C., Jadon, D. R., Tillett, W., Mease, P. J. & Vis, M., 1 Jun 2018, In : The Journal of rheumatology. Supplement. 94, p. 26-29 4 p.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
20 Downloads (Pure)

Content and Face Validity and Feasibility of 5 Candidate Instruments for Psoriatic Arthritis Randomized Controlled Trials: The PsA OMERACT Core Set Workshop at the GRAPPA 2017 Annual Meeting

Holland, R., Tillett, W., Ogdie, A., Leung, Y. Y., Gladman, D. D., Callis Duffin, K., Coates, L. C., Mease, P. J., Eder, L., Strand, V., Elmamoun, M., Højgaard, P., Chau, J., de Wit, M., Goel, N., Lindsay, C. A., FitzGerald, O., Shea, B., Beaton, D. & Orbai, A-M., 1 Jun 2018, In : The Journal of rheumatology. Supplement. 94, p. 17-25 9 p.

Research output: Contribution to journalArticle

Open Access
File
4 Citations (Scopus)
22 Downloads (Pure)
2020

Clinical trial discrimination of physical function instruments for psoriatic arthritis: A systematic review

Leung, Y. Y., Holland, R., Mathew, A. J., Lindsay, C., Goel, N., Ogdie, A., Orbai, A. M., Hojgaard, P., Chau, J., Coates, L. C., Strand, V., Gladman, D. D., Christensen, R., Tillett, W. & Mease, P., 1 Oct 2020, In : Seminars in Arthritis and Rheumatism. 50, 5, p. 1158-1181 24 p.

Research output: Contribution to journalArticle

Evaluation of a patient self-stratification methodology to identify those in need of shielding during COVID-19

Reilly, E., Skeoch, S., Hardcastle, S., Pauling, J. D., Rowe, M., Ahmed, T., Allard, A., Boyce, B., Korendowych, E., Lapraik, C., Tillett, W. & Sengupta, R., 11 Sep 2020, In : Clinical Medicine.

Research output: Contribution to journalArticle

To lump or split when assessing psoriatic arthritis - not mutually exclusive?

Tillett, W. & Helliwell, P. S., 1 Mar 2020, In : Journal of Rheumatology. 47, 3, p. 307-309 3 p.

Research output: Contribution to journalEditorial

Open Access

OP0050 ADALIMUMAB INTRODUCTION VERSUS METHOTREXATE DOSE ESCALATION IN PATIENTS WITH INADEQUATELY CONTROLLED PSORIATIC ARTHRITIS: RESULTS FROM RANDOMIZED PHASE 4 CONTROL STUDY

Coates, LC., Tillett, W., D’agostino, MA., Rahman, P., Behrens, F., Conaghan, PG., Mcdearmon-Blondell, E., Bu, X., Chen, L. & Kapoor, M., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

AB0819 FLARES AMONG PATIENTS WITH PSORIATIC ARTHRITIS (PsA)-FREQUENCY AND IMPACT ON PATIENT OUTCOMES: REAL-WORLD SURVEY IN THE US AND EUROPE

Orbai, AM., Tillett, W., Grieb, S., Peterson, S., Holdsworth, E., Meakin, S., Wirta, S. B., Chakravarty, SD. & Gossec, L., 1 May 2020, BMJ Publishing Group Ltd.

Research output: Other contribution

P265 Burden of psoriatic nail disease and response to biologic therapy in a PsA cohort

Nair, P., Anthony, A., Lovell, C., Korendowych, E., Cavill, C., McHugh, N. & Tillett, W., 20 Apr 2020, In : Rheumatology. 59, Supplement2, keaa111-258.

Research output: Contribution to journalMeeting abstract

Perspectives of Patients With Rheumatic Diseases in the Early Phase of COVID-19

Antony, A., Connelly, K., De Silva, T., Eades, L., Tillett, W., Ayoub, S. & Morand, E., 31 Aug 2020, In : Arthritis Care & Research. 72, 9, p. 1189-1195 7 p.

Research output: Contribution to journalArticle

Performance and Predictors of Minimal Disease Activity Response in Peripheral Spondyloarthritis Patients Treated With Adalimumab

Coates, L. C., Abraham, S., Tillett, W., Mease, P. J., Ramiro, S., Wu, T., Wang, X., Pangan, A. L. & Song, I-H., 16 Sep 2020, In : Arthritis Care & Research.

Research output: Contribution to journalArticle

2018

Validation of the Psoriatic Arthritis Impact of Disease (PsAID) Questionnaire and its potential as a single-item outcome measure in clinical practice

Holland, R., Tillett, W., Korendowych, E., Cavill, C., Waldron, N., Brooke, M. & McHugh, N. J., 12 Feb 2018, In : Annals of the Rheumatic Diseases. 77, 3, p. 343-347 5 p.

Research output: Contribution to journalArticle

Open Access
File
15 Citations (Scopus)
42 Downloads (Pure)
2020

P264 Burden of disease and relative impact of skin and joint disease on quality of life in PsA: analysis from a UK secondary care cohort

Tillett, W., Rambojun, A., Bradley, A., Mount, J., Cavill, C., Korendowych, E. & McHugh, N., 20 Apr 2020, In : Rheumatology. 59, Supplement2, keaa111-257.

Research output: Contribution to journalMeeting abstract