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Juvenile idiopathic arthritis
Alberto Martini1, Daniel J Lovell2, Salvatore Albani3
1Università degli Studi di Genova, Dipartimento di Neuroscienze, Riabilitazione, Oftalmologia, Genetica e Scienze Materno-Infantili (DiNOGMI), Genova, Italy. albertomartini@gaslini.org.
Insights
Juvenile idiopathic arthritis (JIA) is a chronic childhood inflammatory condition. Advances in JIA treatment focus on rapid disease control and improving quality of life for affected children.
Area of Science:
- Pediatric Rheumatology
- Immunology
- Genetics
Background:
- Juvenile idiopathic arthritis (JIA) is the most prevalent chronic inflammatory rheumatic disease in children, characterized by unknown etiology and lasting over six weeks with onset before age 16.
- The current International League Against Rheumatism (ILAR) classification, while valuable for research, faces criticism for not differentiating childhood-specific arthritis from adult forms, prompting the development of new evidence-based classifications.
- Pathogenesis of JIA involves complex autoimmune and autoinflammatory mechanisms, similar to adult arthritis.
Purpose of the Study:
- To review the current understanding of Juvenile Idiopathic Arthritis (JIA), including its classification, pathogenesis, and therapeutic advancements.
- To highlight the evolving treatment goals in JIA, emphasizing rapid disease control and enhanced quality of life.
Main Methods:
- Literature review of JIA classification systems, pathogenesis, and therapeutic strategies.
- Analysis of recent advancements in drug therapies and clinical trial methodologies for JIA.
Main Results:
- Significant improvements in therapeutic options for JIA have emerged due to potent new drugs and structured clinical trials.
- Treatment aims to achieve inactive disease or clinical remission swiftly, minimize adverse effects, and restore a quality of life comparable to healthy peers.
Conclusions:
- JIA management has advanced significantly, offering better outcomes for affected children.
- Improving health-related quality of life is increasingly recognized as a critical treatment objective in JIA, acknowledging its profound impact on children and families.
Abstract:
Juvenile idiopathic arthritis (JIA) is an umbrella term for arthritis of unknown origin, lasting for >6 weeks with onset before 16 years of age. JIA is the most common chronic inflammatory rheumatic condition of childhood. According to the International League Against Rheumatism (ILAR) classification, seven mutually exclusive categories of JIA exist based on disease manifestations during the first 6 months of disease. Although the ILAR classification has been useful to foster research, it has been criticized mainly as it does not distinguish those forms of chronic arthritis observed in adults and in children from those that may be unique to childhood. Hence, efforts to provide a new evidence-based classification are ongoing. Similar to arthritis observed in adults, pathogenesis involves autoimmune and autoinflammatory mechanisms. The field has witnessed a remarkable improvement in therapeutic possibilities of JIA owing to the availability of new potent drugs and the possibility to perform controlled trials with support from legislative interventions and large networks availability. The goal of drug therapy in JIA is to rapidly reduce disease activity to inactive disease or clinical remission, minimize drug side effects and achieve a quality of life comparable to that of healthy peers. As JIA can influence all aspects of a child's and their family's life, researchers increasingly recognize improvement of health-related quality of life as a key treatment goal.
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