Ankylosing Spondylitis
Conditions
Keywords
Etanercept, Adalimumab, Ankylosing Spondylitis, Switch Study
Brief summary
To determine the safety and efficacy of switch effects to adalimumab in etanercept-treated AS patients.
Detailed description
This single-centre, open-labeled randomized controlled study will evaluate the safety and efficacy of adalimumab in etanercept-treated Ankylosing Spondylitis(AS) patients. Thirty patients will be enrolled and randomized equally into two arms. Dosage and Administration:For standard dose(etanercept 50 mg weekly) treated patients, the treatment arm will receive adalimumab 40 mg subcutaneously biweekly for 8 weeks. The control arm will continue etanercept 25 mg subcutaneously twice a week for 8 weeks. At week 8, the control arm will be switched to adalimumab 40 mg subcutaneously biweekly for another 8 weeks.For half dose(etanercept 25 mg weekly) treated patients, the treatment arm will receive adalimumab 40 mg subcutaneously monthly for 8 weeks. The control arm will continue etanercept 25 mg subcutaneously weekly for 8 weeks. At week 8, the control arm will be switched to adalimumab 40 mg subcutaneously monthly for another 8 weeks.
Interventions
The treatment arm will receive adalimumab 40 mg subcutaneously biweekly
The control arm will continue etanercept 25 mg subcutaneously twice a week
Sponsors
Study design
Eligibility
Inclusion criteria
* Diagnosis of AS, as defined by 1984 Modified New York Criteria for AS. * Stable background therapy as non-steroid anti-inflammatory for 2 weeks. * Stable glucocorticoid for 4 weeks. * Stable disease-modifying anti-rheumatic drugs, eg. sulphasalazine, methotrexate for 8 weeks. * Stable anti-TNF biologics for 4 weeks. * Written informed consent.
Exclusion criteria
* Serum creatinine ≥3.0 mg/dl. * GPT≥5 times the laboratory's upper limit of normal. * Pregnant or breast-feeding women.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Bath AS disease activity index (BASDAI) | weeks 8 | The score of BASDAI on weeks 8 |
Countries
Taiwan