https://www.ncbi.nlm.nih.gov/pubmed/28029752
Kremer J1, Genovese MC2, Keystone E3, Taylor PC4, Zuckerman SH5, Ruotolo G5, Schlichting DE5, Crotzer VL5, Nantz E5, Beattie SD5, Macias WL5.
Abstract
Objective
To assess the effects of baricitinib on lipid profile in patients with
moderate-to-severe rheumatoid arthritis. Methods Once-daily baricitinib
(1, 2, 4, or 8-mg) or placebo was studied in 301 randomized patients.
Changes in lipid profile, particle size, and number were assessed at
weeks 12/24; associations with clinical efficacy were evaluated.
Apolipoproteins were assessed at weeks 4/12 for the placebo, and 4- and
8-mg baricitinib groups. Results Baricitinib treatment resulted in
dose-dependent increases by week 12 in serum lipids (low-density
lipoprotein cholesterol [LDL-C]: 3.4 mg/dL increase from baseline to
week 12 (1-mg) to 11.8 mg/dL (8-mg); high-density lipoprotein
cholesterol [HDL-C]: 3.3 mg/dL (1-mg) to 8.1 mg/dL (8-mg);
triglycerides: 6.4 mg/dL (1-mg) to 15.4 mg/dL (8-mg) baricitinib).
Group-wise mean increases in LDL-C were coincident with mean increases
in large LDL particles and mean reductions in small dense LDL particles.
Increases from baseline to week 12 in apolipoprotein A-I, B, and total
CIII were observed with 4-mg (9.5%, 6.8%, and 23.0%, respectively) and
8-mg (12.2%, 7.1%, and 19.7%, respectively) baricitinib with no increase
in LDL-associated CIII (4-mg: -4.5%; 8-mg: -9.0). Baricitinib reduced
HDL-associated serum amyloid A at 4-mg (-36.0%) and 8-mg (-32.0%); a
significant reduction in lipoprotein (a) was observed only with 8-mg
(-16.6%). Increased HDL cholesterol at week 12 correlated with improved
Disease Activity Scores and Simplified Disease Activity Index; changes
in total cholesterol, LDL cholesterol, and triglycerides did not reveal a
similar relationship. Conclusion Baricitinib-associated increases in
serum lipids were observed. HDL-C increases correlated with improved
clinical outcomes. This article is protected by copyright. All rights
reserved.
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