EULAR Recommendations: EULAR/ACR Collaborative Projects
 

For initiatives with international relevance, the relevant EULAR Committee seeks collaboration with the Quality of Care committee of the American College of Rheumatology (ACR). This cooperation includes the development and validation of criteria sets for the development of recommendations regarding conducting clinical trials.

EULAR and ACR strive for a transparent and collaborative relationship in order to avoid overlaps and to identify and promote synergies. 

2025 ACR/EULAR Collaborative Criteria Projects call for proposals is now open.

To better streamline cross-organisational processes, the ACR and EULAR have an annual deadline for proposal submissions.

See here the 2025 Timeline for proposal submissions:

 
​Learn more​


Ongoing and Published Initiatives

Scroll down this page to find a list of ongoing and published initiatives. Ongoing initiatives are placed under published initiatives as soon as official publication takes place. Each published initiative carries the name of the initiative, the convenor, the month and year of publication as well as a link to the final, published initiative.


Ongoing Initiatives 

  • Development of EULAR/ACR Criteria for Disease Activity and Response in Giant Cell Arteritis
    Convenor: Dejaco, Langford

  • ACR-EULAR Development of Classification Criteria for Immune Related Adverse Events: Inflammatory Arthritis
    Convenor: A.Meara, M.Kostine

  • EULAR Points to Consider on risk stratification of populations for RA prevention studies: new inclusion of ACR collaboration and population-based approaches to risk stratification
    Convenor: K. Deane, K. Mankia, A. Van der Helm, K. Raza

  • EULAR-ACR Classification Criteria for Antisynthetase Syndrome (CLASS)
    Convenor: Aggarwal (ACR), Cavagna (EULAR)  

  • Criteria for Treatment Response for ANCA‐Associated Vasculitis
    Convenor: Peter Merkel, Gunnar Tomasson  
     
Published Initiatives
  • EULAR/ACR risk stratification criteria for development of rheumatoid arthritis in the risk stage of arthralgia 
    Published: 8 May, 2025
    ​Read criteria​

  • EULAR/ACR classification criteria for paediatric chronic nonbacterial osteomyelitis (CNO) 
    Published: 8 May, 2025
    ​Read criteria

  • EULAR recommendations for the management of psoriatic arthritis with pharmacological therapies: 2023 update 
    Published: 18 March, 2024
    ​Read recommendation​

  • 2023 ACR/EULAR Antiphospholipid Syndrome Classification Criteria 
    Published: 28 August, 2023
    ​Read this criteria ​

  • The 2023 ACR/EULAR Classification Criteria for Calcium Pyrophosphate Deposition Disease (CPDD)
    Published: 26 July, 2023
    ​Read criteria  ​

  • The 2022 EULAR/ACR points to consider at the early stages of diagnosis and management of suspected haemophagocytic lymphohistiocytosis/macrophage activation syndrome (HLH/MAS)
    Published: 24 July, 2023
     ​ ​Read Recommendation ​

  • American College of Rheumatology/EULAR remission criteria for rheumatoid arthritis: 2022 revision
    Published: 24 October, 2022
    Convenor: Paul Studenic
    ​Read this criteria​ 
  • Recommendations for the management of the IL-1-mediated Autoinflammatory Diseases,       CAPS (FCAS, MWS and NOMID/CINCA), TRAPS, MKD and DIRA
    Convenor: M. Gattorno, E. Demirkaya, R. Goldbach-Mansky
    ​Read this recommendation​ 
  • Recommendations for the management of the Autoinflammatory Type-I Interferonopathies
    Published: 22 February, 2022
    Convenor: R. Goldbach-Mansky, E. Demirkaya
    ​Read this recommendation ​
  • 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology Classification Criteria for Microscopic Polyangiitis
    Published: 2 February, 2022
    ​Read this classification ​
     
  • 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology Classification Criteria for Eosinophilic Granulomatosis With Polyangiitis
    Published: 2 February, 2022
    ​Read this classification ​
     
  • 2022 American College of Rheumatology/European Alliance of Associations for Rheumatology Classification Criteria for Granulomatosis With Polyangiitis
    Published: 2 February, 2022
    ​Read this classification​                                                                                                                                               
  • 2016 American college of rheumatology/European league against rheumatism criteria for minimal moderate, and major clinical response in juvenile dermatomyositis
    Convenor: Lisa Rider, Frederik W. Miller
    Published: March 2018
    ​Read this criteria​                                                                                                                                                           
  • 2017 European League Against Rheumatism/American College of Rheumatology classification criteria for adult and juvenile idiopathic inflammatory myopathies and their major subgroups
    Convenor: Ingrid Lundberg, Lisa Rider
    Published ARD: October 2017
    ​Read this classification ​

    Published RMDOpen: 14 November 2017
    ​Read this classification ​
     
  • 2016 American College of Rheumatology/European League Against Rheumatism classification criteria for primary Sjögren's syndrome
    Convenor: Simon Bowman, Caroline Shiboski
    Published ARD: October 2016
    ​Read this classification ​
     
  • 2016 Classification Criteria for Macrophage Activation Syndrome Complicating Systemic Juvenile Idiopathic Arthritis: A European League Against Rheumatism/American College of Rheumatology/Paediatric Rheumatology International Trials Organisation Collaborative Initiative 
    Convenor: Angelo Ravelli, Randy Cron
    Published: February 2016
    ​Read this classification​                                                                                                                                                 
  • EULAR-ACR recommendations for the management of polymyalgia rheumatica 
    Convenor: Bhaskar Dasgupta, Eric Matteson
    Published: September 2015
    ​Read this recommendation​                                                                                                                                              
  • ACR-EULAR classification criteria for gout
    Convenor: William Taylor, Tuhina Neogi, Tim Jansen
    Published: September 2015
    Annals of the Rheumatic Diseases 2015;74:
    1789-1798
    ​Read this classification ​

  • 2013 classification criteria for systemic sclerosis: an American college of rheumatology (ACR)/European league against rheumatism (EULAR) collaborative initiative
    Convenor: Frank van den Hoogen, Janet Pope
    Published: October 2013
    ​Read this recommendation​                                                                                                                                             
  • Evaluation of best practice for reducing delay in diagnosis and treatment of inflammatory arthritis
    Convenor: Paul Emery, Vivian Bykerk
    Published: April 2012
    ​Read this recommendation​                                                                                                                                              
  • ACR-EULAR recommendations for determining remission in rheumatoid arthritis
    Convenor: David Felson, Maarten Boers
    Published: January 2011
    ​See slide deck​                                                                                                                                                                        
  • ACR-EULAR classification criteria for RA
    Convenor: Gillian Hawker, Daniel Aletaha
    Published: September 2010
    ​Read this recommendation ​

    ​See slide deck​                                                                                                                                                                     
  • EULAR-ACR points to consider for reporting disease activity in RA clinical trials
    Convenor: Daniel Aletaha, Daniel Felson
    Published: October 2008
    ​Read this recommendation ​