The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Ixekizumab, an interleukin-17A specific monoclonal antibody, for the treatment of biologic-naive patients with active psoriatic arthritis: results from the 24-week randomised, double-blind, placebo-controlled and active (adalimumab)-controlled period of the phase III trial SPIRIT-P1
Open accessAbstract
OBJECTIVE: To assess the safety and efficacy of ixekizumab, a monoclonal antibody that inhibits interleukin-17A, in a double-blind phase III trial enrolling patients with active psoriatic arthritis (PsA). METHODS: Patients naive to biologic therapy with active PsA were randomised to subcutaneous injections of placebo (N=106), adalimumab 40 mg once every 2 weeks (active reference; N=101), ixekizumab 80 mg once every 2 weeks (IXEQ2W) (N=103), or ixekizumab 80 mg once every 4 weeks (IXEQ4W) (N=107). Both ixekizumab regimens included a 160-mg starting dose. The primary objective was to assess the superiority of IXEQ2W or IXEQ4W versus placebo as measured by the proportion of patients achieving an American College of Rheumatology 20 (ACR20) response at week 24. RESULTS: Significantly more patients treated with ixekizumab achieved an ACR20 response with IXEQ2W (62.1%) or IXEQ4W (57.9%) than placebo (30.2%) (p≤0.001; non-responder imputation method). Disease activity and functional disability were significantly improved with both ixekizumab doses versus placebo at weeks 12 and 24, and there was significantly less progression of structural damage at week 24 (p≤0.01). Clearance of plaque psoriasis was greater with ixekizumab than placebo (p≤0.001). Efficacy results with adalimumab, the active reference arm, showed significant improvements versus placebo. Treatment-emergent adverse events were more frequent with ixekizumab (65.7-66.4%) and adalimumab (64.4%) than placebo (47.2%) (p<0.05). CONCLUSIONS: In biologic-naive patients with active PsA, ixekizumab treatment resulted in improvements in disease activity and physical function, as well as in the inhibition of structural damage progression. Overall, adverse events were more frequent in all active groups compared with placebo. TRIAL REGISTRATION NUMBER: NCT01695239; EudraCT2011-002326-49; Results.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Measurement of patient outcome in arthritis
Fries, J. F., Spitz, P., Kraines, R. G., & Holman, H. R. (1980) · Arthritis & Rheumatism · doi:10.1002/art.1780230202 · Cited by 4,382
Taylor, W., Gladman, D., Helliwell, P., Marchesoni, A., Mease, P., & Mielants, H. (2006) · Arthritis & Rheumatism · doi:10.1002/art.21972 · Cited by 3,746
Self-citationAmerican college of rheumatology preliminary definition of improvement in rheumatoid arthritis
Felson, D. T., Anderson, J. J., Boers, M., Bombardier, C., Furst, D., Goldsmith, C., Katz, L. M., Lightfoot, R., Paulus, H., Strand, V., et al. (1995) · Arthritis & Rheumatism · doi:10.1002/art.1780380602 · Cited by 2,829
Psoriatic arthritis: epidemiology, clinical features, course, and outcome
Gladman, D. D., Antoni, C., Mease, P., Clegg, D. O., & Nash, P. (2005) · Annals of the Rheumatic Diseases · doi:10.1136/ard.2004.032482 · Cited by 1,536
Self-citationThe dimensions of health outcomes: the health assessment questionnaire, disability and pain scales.
Fries, J. F., Spitz, P. W., & Young, D. Y. (1982) · PubMed · Cited by 1,318
Anti–Interleukin-17 Monoclonal Antibody Ixekizumab in Chronic Plaque Psoriasis
Leonardi, C., Matheson, R., Zachariae, C., Cameron, G., Li, L., Edson-Heredia, E., Braun, D., & Banerjee, S. (2012) · New England Journal of Medicine · doi:10.1056/nejmoa1109997 · Cited by 936
Self-citationMast Cells and Neutrophils Release IL-17 through Extracellular Trap Formation in Psoriasis
Lin, A. M., Rubin, C. J., Khandpur, R., Wang, J. Y., Riblett, M., Yalavarthi, S., Villanueva, E. C., Shah, P., Kaplan, M. J., & Bruce, A. T. (2011) · The Journal of Immunology · doi:10.4049/jimmunol.1100123 · Cited by 906
Wells, G., Becker, J.-C., Teng, J., Dougados, M., Schiff, M., Smolen, J., Aletaha, D., & van Riel, P. L. C. M. (2009) · Annals of the Rheumatic Diseases · doi:10.1136/ard.2007.084459 · Cited by 878
Requirement of Interleukin‐17A for Systemic Anti– Candida albicans Host Defense in Mice
Huang, W., Na, L., Fidel, P. L., & Schwarzenberger, P. (2004) · The Journal of Infectious Diseases · doi:10.1086/422329 · Cited by 859
McInnes, I. B., Mease, P. J., Kirkham, B., Kavanaugh, A., Ritchlin, C. T., Rahman, P., van der Heijde, D., Landewé, R., Conaghan, P. G., Gottlieb, A. B., et al. (2015) · The Lancet · doi:10.1016/s0140-6736(15)61134-5 · Cited by 858
Self-citation
Cited by
Preventing psoriatic arthritis: focusing on patients with psoriasis at increased risk of transition
Scher, J. U., Ogdie, A., Merola, J. F., & Ritchlin, C. (2019) · Nature Reviews Rheumatology · doi:10.1038/s41584-019-0175-0 · Cited by 394
Self-citationTH17 cell heterogeneity and its role in tissue inflammation
Schnell, A., Littman, D. R., & Kuchroo, V. K. (2023) · Nature Immunology · doi:10.1038/s41590-022-01387-9 · Cited by 286
Mease, P., Coates, L. C., Helliwell, P. S., Stanislavchuk, M., Rychlewska-Hanczewska, A., Dudek, A., Abi-Saab, W., Tasset, C., Meuleners, L., Harrison, P., et al. (2018) · The Lancet · doi:10.1016/s0140-6736(18)32483-8 · Cited by 196
Self-citationWang, M., Zhang, S., Zheng, G., Huang, J., Songyang, Z., Zhao, X., & Lin, X. (2018) · Immunity · doi:10.1016/j.immuni.2018.05.012 · Cited by 155
Targeting interleukin-17 in chronic inflammatory disease: A clinical perspective
Zwicky, P., Unger, S., & Becher, B. (2020) · Journal of Experimental Medicine · doi:10.1084/jem.20191123 · Cited by 91
Metadata
- Authors
- Mease, P. J., van der Heijde, D., Ritchlin, C. T., Okada, M., Cuchacovich, R. S., Shuler, C. L., Lin, C.-Y., Braun, D. K., Lee, C. H., & Gladman, D. D.
- Venue
- Annals of the Rheumatic Diseases
- Publisher
- Elsevier BV
- Published
- 2017-01
- Volume
- 76
- Issue
- 1
- Pages
- 79-87
- ISSN
- 0003-4967 (ISSN-L)
- OpenAlex
- W2512436288
- Cited by
- 580
- References
- 29
- FWCI
- 60.80
- Type
- journal article
- Language
- en
- Open access
- hybrid
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Ixekizumab, an interleukin-17A specific monoclonal antibody, for the treatment of biologic-naive patients with active psoriatic arthritis: results from the 24-week randomised, double-blind, placebo-controlled and active (adalimumab)-controlled period of the phase III trial SPIRIT-P1. https://app.cochat.ai/papers/10.1136/annrheumdis-2016-209709
- The paper
- Mease, P. J., van der Heijde, D., Ritchlin, C. T., Okada, M., Cuchacovich, R. S., Shuler, C. L., Lin, C.-Y., Braun, D. K., Lee, C. H., & Gladman, D. D. (2017). Ixekizumab, an interleukin-17A specific monoclonal antibody, for the treatment of biologic-naive patients with active psoriatic arthritis: results from the 24-week randomised, double-blind, placebo-controlled and active (adalimumab)-controlled period of the phase III trial SPIRIT-P1. Annals of the Rheumatic Diseases. https://doi.org/10.1136/annrheumdis-2016-209709
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.