Brief summary: This study compares the long-term efficacy and safety of interferon (IFN) α2a and cyclosporine (cyclosporin A, CsA) following suppression of acute attack by high-dose oral glucocorticosteroid in patients with refractory Behçet's uveitis (BDU). Half of the participants will receive IFNα2a while the other half will receive CsA.
Detailed description: Both CsA and IFNα2a have been shown to be effective for long-term control of BDU, however, randomized prospective comparative studies are scarce, particularly in East Asian populations. Our preliminary data gave us the impression that IFNα2a might be more effectiveness than CsA in long-term control of refractory BDU, and this study aimed to compare their effectiveness and safety profiles in a well-designed prospective study. Refractory BDU is defined as relapse of posterior or pan- uveitis with at least 10mg daily prednisone (or equivalent) and one traditional immunomodulatory treatment (IMT) agents. The acute attack is controlled with large dose oral corticosteroid (60mg daily prednisone) for 4 weeks, and then the patients are randomly assigned to the IFN arm and the CsA arm, in which patients are treated with IFNα2a (3×10\^6 IU qd for 4 weeks and qod thereafter) and CsA (100mg bid), respectively, along with a fixed tapering regimen of corticosteroid. Patients were followed up until relapse, or for 12 months.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
28
3×10\^6 IU, subcutaneous or intramuscular injection, qd for × 4 weeks, and qod thereafter
100mg, oral, bid
Peking Union Medical College
Beijing, Beijing Municipality, China
Response rate
Percentage of participants who achieve complete remission or partial remission
Time frame: Within the 12-month follow-up period
Complete remission rate
Percentage of participants who achieve complete remission without relapse of posterior or pan-uveitis
Time frame: Within the 12-month follow-up period
Tolerance rate
Percentage of participants who adhere to the treatment without severe side effects
Time frame: Within the 12-month follow-up period
Time to reach complete remission
The time from the therapy initiation to a complete absence of ocular inflammation for complete responders
Time frame: Within the 12-month follow-up period
Duration of relapse-free
The duration between the therapy initiation to the relapse for partial responders and nonresponders
Time frame: within the 12-month follow-up period
BCVA
Changes of best-corrected visual acuity
Time frame: Within the 12-month follow-up period
BOS24 score
Score of ocular inflammation using the Behcet disease ocular attack score 24 (BOS24)
Time frame: Within the 12-month follow-up period
Glucocorticoid-sparing effect
Changes of corticosteroid dosage
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Time frame: Within the 12-month follow-up period
Incidence of adverse effects
Incidence of adverse effects
Time frame: Within the 12-month follow-up period
Incidence of significant abnormal changes in vital signs or laboratory test results
Incidence of significant abnormal changes in vital signs or laboratory test results
Time frame: Within the 12-month follow-up period
Adverse effects profile
Types of drug adverse effects
Time frame: Within the 12-month follow-up period