# Real-world performance of EULAR and GRAPPA definitions of difficult-to-treat psoriatic arthritis within the ORCHESTRA cohort: an observational cohort study

**Type:** Papers  
**Canonical URL:** https://scholariq.org/papers/real-world-performance-of-eular-and-grappa-definitions-of-difficult-to-treat/

## Facts

| Field | Value |
| --- | --- |
| Author Names | Rahaf Zyad Attar,Seyyid Bilal Açıkgöz,Elliot Hepworth,O. Bayindir Tsechelidis,Ricardo Sabido-Sauri,Tara Swami,Sibel Zehra Aydin |
| Citations | 1 |
| DOI | 10.1177/1759720x261443557 |
| Fields | Immunology and Microbiology,Medicine |
| Open Access | true |
| OA Status | gold |
| OA URL | https://doi.org/10.1177/1759720x261443557 |
| OpenAlex ID | https://openalex.org/W7160517441 |
| PMID | 42137751 |
| Type | article |
| Year | 2026 |

## Paper authors

- [Rahaf Zyad Attar](https://scholariq.org/researchers/rahaf-zyad-attar/)

## Paper primary topic

- [Spondyloarthritis Studies and Treatments](https://scholariq.org/topics/spondyloarthritis-studies-and-treatments/)

## Paper topics

- [Spondyloarthritis Studies and Treatments](https://scholariq.org/topics/spondyloarthritis-studies-and-treatments/)
- [Rheumatoid Arthritis Research and Therapies](https://scholariq.org/topics/rheumatoid-arthritis-research-and-therapies/)
- [Psoriasis: Treatment and Pathogenesis](https://scholariq.org/topics/psoriasis-treatment-and-pathogenesis/)

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Source: ScholarIQ — public research metadata, principally OpenAlex. See https://scholariq.org/sources/ for provenance and https://scholariq.org/methodology/ for what these figures mean.