Population:
The study will include 30 patients with active rheumatoid arthritis: 15 patients treated with Filgotinib. 15 patients treated with Adalimumab (used as a comparison group).
Procedures:
Participants will have blood samples taken at the start and then every 4 weeks up to 12 weeks. These samples will be used to analyze changes in proteins and micro-RNA. Participants will continue their regular rheumatoid arthritis treatment during the study.
Primary Objective:
To observe changes in the metabolic profile (proteins and micro-RNA) in patients treated with Filgotinib.
Secondary Objectives:
Compare the metabolic profile changes between Filgotinib and Adalimumab. Identify metabolic factors associated with early clinical response to Filgotinib.
Safety and Data Management:
Adverse events will be monitored and reported. Patient confidentiality will be maintained according to privacy laws.
Study Duration:
Recruitment: 16 weeks. Patient involvement: 12 weeks. Total study duration: 28 weeks.
Age
18–65
Sex
ALL
Healthy volunteers
Not accepted
You may be eligible if
Rheumatoid arthritis (RA) according to ACR/EULAR 2010 criteria with active disease (Disease Activity Score 28-joints C-reactive protein \[DAS28 CRP\] \>5.1 and/or Clinical Disease Activity Index \[CDAI\] \>22)
Age \> 18, \<65 years
Patients for whom treatment with filgotinib or adalimumab might be planned
You may not be if
History of major cardiovascular events or stroke
History of venous thromboembolism
Active smokers or past smokers \>10 pack/years
History of fragility fractures or severe osteoporosis (T score at total hip or femoral neck or lumbar spine ≤3.5)
Treatment with bone-active medications (estrogens, bisphosphonates, denosumab, teriparatide, romosozumab)
Chronic treatment with moderate to high dose of glucocorticoids (≥7.5 mg/day of prednisone equivalent for more than 3 months prior to enrollment), short term (\<3 months) will be accepted if tapered, as clinically feasible, to \<7.5 mg/day before enrollment)
