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Experimental Autoimmune Uveitis: An Intraocular Inflammatory Mouse Model
Published on: January 12, 2022
Azathioprine as a treatment option for uveitis in patients with juvenile idiopathic arthritis
J C Goebel1, M Roesel, C Heinz
1Department of Ophthalmology, Uveitis Center at St. Franziskus-Hospital, Muenster, Germany.
Insights
Azathioprine effectively treats uveitis in juvenile idiopathic arthritis (JIA), achieving inactivity in most patients. This immunosuppressive therapy can reduce steroid dependence and is a valuable option for JIA-associated uveitis.
Area of Science:
- Ophthalmology
- Rheumatology
- Immunology
Background:
- Juvenile idiopathic arthritis (JIA) frequently causes chronic anterior uveitis.
- Uveitis in JIA can lead to vision impairment and requires effective immunosuppressive management.
Purpose of the Study:
- To evaluate azathioprine's efficacy as monotherapy or in combination for treating JIA-associated uveitis.
- To assess azathioprine's role in reducing corticosteroid and other immunosuppressive drug dosages.
Main Methods:
- Retrospective multicentre study of 41 children with JIA and chronic anterior uveitis.
- Azathioprine was administered to patients with active uveitis despite existing treatments.
- Primary endpoint: uveitis inactivity; Secondary endpoints: steroid dose sparing and immunosuppression levels.
Main Results:
- Uveitis inactivity achieved in 76.5% with azathioprine monotherapy and 56.6% with combination therapy at 1 year.
- Long-term inactivity (mean 26 months) observed in 61.5% (monotherapy) and 66.7% (combination).
- Significant reduction in systemic/topical steroid dosages and immunosuppression achieved in multiple patients; 7.3% discontinued due to side effects.
Conclusions:
- Azathioprine is a viable option in the treatment ladder for JIA-associated uveitis.
- Adding azathioprine may benefit patients unresponsive to methotrexate.
- Azathioprine demonstrates therapeutic value in managing JIA-uveitis, potentially reducing steroid burden.
Aim:
To investigate the therapeutic value of azathioprine as monotherapy or combined with other immunosuppressive drugs for uveitis in patients with juvenile idiopathic arthritis (JIA).
Methods:
A retrospective multicentre study including 41 children with JIA (28 (68.2%) female) with unilateral or bilateral (n=28) chronic anterior uveitis. Azathioprine was used to treat uveitis that was active in patients receiving topical or systemic corticosteroids, methotrexate or other immunosuppressive drugs. The primary end point was assessment of uveitis inactivity. Secondary end points comprised dose sparing of topical steroids and systemic corticosteroids, and immunosuppression.
Results:
At 1 year, uveitis inactivity was achieved in 13/17 (76.5%) patients by using azathioprine as systemic monotherapy and in 5/9 (56.6%) as combination therapy. During the entire azathioprine treatment period (mean 26 months), inactivity was obtained in 16/26 patients (61.5%) with monotherapy and in 10/15 (66.7%) when combined with other immunosuppressives (p=1.0). With azathioprine, dosages of systemic immunosuppression and steroids could be reduced by ≥ 50% (n=12) or topical steroids reduced to ≤ 2 drops/eye/day in six patients. In three patients (7.3%), azathioprine was discontinued because of nausea and stomach pain. Conclusions Azathioprine may be reconsidered in the stepladder approach for the treatment of JIA-associated uveitis. The addition of azathioprine may also be beneficial for patients not responding properly to methotrexate.
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