The treatment of juvenile dermatomyositis (JDM), is unsatisfactory, and corticosteroids are the only agents currently approved by the US Food and Drug Administration for myositis. Many of JDM patients fail to respond adequately to corticosteroids and require additional immunosuppressive medications, none of which have been tested in controlled trials in children.

In order to solve this problem PRINTO designed a 5-year trial, involving 185 partners from 46 countries. This is a phase III single-blind randomised clinical trials in children with newly diagnosed JDM with 3 arms:

1. prednisone (PDN) versus

2. PDN plus methotrexate (MTX) versus

3. PDN plus cyclosporine A.

The study is designed as an effectiveness trial aimed to find out the treatment regimen associated with the lowest occurrence of flare and the lowest drug related toxicity.



IMPORTANT: thanks to a grant from the Italian Agency for Drug Evaluation (AIFA), the Myositis Association and other source of funding PRINTO is now able to provide 300 euro for every patient enrolled in the trial for whose forms are electronically submitted (200 euro if submitted on paper via fax).



If you are interested you can contact the PRINTO office. The complete set of information (material for ethics committee submission, protocols, consent forms, and internet case report forms) are available, for PRINTO members only, in the reserved Member area on the left.

Rosina S, Varnier GC, Pistorio A, Pilkington C, Maillard S, Civino A, Tsitsami E, Bracaglia C, Jelusic M, Cespedes-Cruz A, Espada G, Cimaz R, Coutillault G, Joos R, Quartier P, Rao AP, Malattia C, Ruperto N, Consolaro A, Ravelli A, for the Pediatric Rheumatology International Trials Organization (PRINTO).
Development and testing of reduced versions of the Manual Muscle Test-8 in juvenile dermatomyositis.
J Rheumatol 2021;48:898-906
Year: 2021 -

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Nordal E, Pistorio A, Rygg M, Giancane G, Maghnie M, Di Iorgi N, Flemming K, Hofer M, Melo-Gomes JA, Bica BERG, Brunner J, Dannecker G, Gerloni V, Harjacek M, Huppertz HI, Pratsidou-Gertsi P, Nielsen S, Stanevicha V, Ten Cate R, Vougiouka O, Pastore S, Simonini G, Ravelli A, Martini A, Ruperto N for the Paediatric Rheumatology International Trials Organisation (PRINTO)
Growth and puberty in juvenile dermatomyositis: a longitudinal cohort study.
Arthritis Care Res 2020 Feb;72(2):265-273
Year: 2019 -

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Giancane G, Lavarello C, Pistorio A, Oliveira SK, Zulian F, Cuttica R, Fischbach M, Magnusson B, Pastore S, Marini R, Martino S, Pagnier A, Soler C, Staņēvicha V, Ten Cate R, Uziel Y, Vojinovic J, Fueri E, Ravelli A, Martini A, Ruperto N for the Paediatric Rheumatology International Trials Organisation (PRINTO)
The PRINTO evidence-based proposal for glucocorticoids tapering/discontinuation in new onset juvenile dermatomyositis patients
Pediatr Rheumatol Online J 2019;17(1):24.
Year: 2019 -

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Rider LG, Ruperto N, Pistorio A, Erman B, Bayat N, Lachenbruch PA, Rockette H, Feldman BM, Huber AM, Hansen P, Oddis CV, Lundberg IE, Amato AA, Chinoy H, Cooper RG, Chung L, Danko K, Fiorentino D, García-De la Torre I, Reed AM, Wook Song Y, Cimaz R, Cuttica RJ, Pilkington CA, Martini A, van der Net J, Maillard S, Miller FW, Vencovsky J, Aggarwal R; International Myositis Assessment and Clinical Studies Group and the Paediatric Rheumatology International Trials Organisation.
2016 ACR-EULAR adult dermatomyositis and polymyositis and juvenile dermatomyositis response criteria-methodological aspects.
Rheumatology 2017;56:1884-1893
Year: 2017 -

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Rider LG, Aggarwal R, Pistorio A, Bayat N, Erman B, Feldman BM, Huber AM, Cimaz R, Cuttica RJ, de Oliveira SK, Lindsley CB, Pilkington CA, Punaro M, Ravelli A, Reed AM, Rouster-Stevens K, van Royen-Kerkhof A, Dressler F, Saad Magalhaes C, Constantin T, Davidson JE, Magnusson B, Russo R, Villa L, Rinaldi M, Rockette H, Lachenbruch PA, Miller FW, Vencovsky J, Ruperto N for the International Myositis Assessment and Clinical Studies Group and the Paediatric Rheumatology International Trials Organisation (PRINTO).
2016 American College of Rheumatology/European League Against Rheumatism Criteria for Minimal, Moderate, and Major Clinical Response in Juvenile Dermatomyositis: An International Myositis Assessment and Clinical Studies Group/Paediatric Rheumatology International Trials Organisation Collaborative Initiative.
Ann Rheum Dis 2017;76(5):782-791
Year: 2017 -

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Rider LG, Aggarwal R, Pistorio A, Bayat N, Erman B, Feldman BM, Huber AM, Cimaz R, Cuttica RJ, de Oliveira SK, Lindsley CB, Pilkington CA, Punaro M, Ravelli A, Reed AM, Rouster-Stevens K, van Royen-Kerkhof A, Dressler F, Magalhaes CS, Constantin T, Davidson JE, Magnusson B, Russo R, Villa L, Rinaldi M, Rockette H, Lachenbruch PA, Miller FW, Vencovsky J, Ruperto N for the International Myositis Assessment and Clinical Studies Group and the Paediatric Rheumatology International Trials Organisation (PRINTO).
2016 American College of Rheumatology/European League Against Rheumatism Criteria for Minimal, Moderate, and Major Clinical Response in Juvenile Dermatomyositis: An International Myositis Assessment and Clinical Studies Group/Paediatric Rheumatology International Trials Organisation Collaborative Initiative.
Arthritis Rheum 2017;69(5):911-923.
Year: 2017 -

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Aggarwal R, Rider LG, Ruperto N, Bayat N, Erman B, Feldman BM, Oddis CV, Amato AA, Chinoy H, Cooper RG, Dastmalchi M, Fiorentino D, Isenberg D, Katz JD, Mammen A, de Visser M, Ytterberg SR, Lundberg IE, Chung L, Danko K, García-De la Torre I, Song YW, Villa L, Rinaldi M, Rockette H, Lachenbruch PA, Miller FW, Vencovsky J; for the International Myositis Assessment and Clinical Studies Group and the Paediatric Rheumatology International Trials Organisation (PRINTO).
2016 AmericRheumatism Criteria for Minimal, Moderate, and Major Clinical Response in Adult Dermatomyositis and Polymyositis: An International Myositis Assessment and Clinical Studies Group/Paediatric Rheumatology International Trials Organisation Collaborative Initiative.
Arthritis Rheum 2017;69(5):898-910.
Year: 2017 -

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Aggarwal R, Rider LG, Ruperto N, Bayat N, Erman B, Feldman BM, Oddis CV, Amato AA, Chinoy H, Cooper RG, Dastmalchi M, Fiorentino D, Isenberg D, Katz JD, Mammen A, de Visser M, Ytterberg SR, Lundberg IE, Chung L, Danko K, García-De la Torre I, Song YW, Villa L, Rinaldi M, Rockette H, Lachenbruch PA, Miller FW, Vencovsky J for the International Myositis Assessment and Clinical Studies Group and the Paediatric Rheumatology International Trials Organisation (PRINTO).
2016 American College of Rheumatology/European League Against Rheumatism criteria for minimal, moderate, and major clinical response in adult dermatomyositis and polymyositis: An International Myositis Assessment and Clinical Studies Group/Paediatric Rheumatology International Trials Organisation Collaborative Initiative.
Ann Rheum Dis 2017;76(5):792-801
Year: 2017 -

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Ruperto N, Pistorio A, Oliveira S, Zulian F, Cuttica R, Ravelli A, Fischbach M, Magnusson B, Sterba G, Avcin T, Brochard K, Corona F, Dressler F, Gerloni V, Apaz MT, Bracaglia C, Cespedes-Cruz A, Cimaz R, Couillault G, Joos R, Quartier P, Russo R, Tardieu M, Wulffraat N, Bica B, Dolezalova P, Ferriani V, Flato B, Guilaisne Bernard-Medina A, Herlin T, Trachana M, Meini A, Allain-Launay E, Pilkington C, Vargova V, Wouters C, Angioloni S, Martini A for the Paediatric Rheumatology International Trials Organisation (PRINTO).
A randomized trial in new onset juvenile dermatomyositis: prednisone versus prednisone plus cyclosporine versus prednisone plus methotrexate.
Lancet 2016;387:671-678.
Year: 2016 -

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Ruperto N, Pistorio A, Ravelli A, Angioloni S, Martini A for the Paediatric Rheumatology International Trials Organisation (PRINTO).
The PRINTO juvenile dermatomyositis trial – Authors’ reply.
Lancet 2016;387:2600-2601.
Year: 2016 -

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