Differential Properties of Janus Kinase Inhibitors in the Treatment of Immune-mediated Inflammatory Diseases

Rheumatology (Oxford) 2023;63(2):298–308 doi 10.1093/rheumatology/kead448

JAKis differ in structure, which affects their inhibitory concentration for different JAKs.

This review by Taylor, et al. compares the pharmacological profiles of JAKis, including abrocitinib, baricitinib, filgotinib, peficitinib, tofacitinib, and upadacitinib.

This meta-analysis by Wei, et al. found that JAKi therapy was not associated with a higher risk of MACE than treatment with adalimumab, abatacept, or placebo. However, a higher incidence of all-cause mortality was observed with tofacitinib treatment than with adalimumab treatment.

June 2023

JAK Inhibitors and the Risk of Malignancy: A Meta-analysis Across Disease Indications

Ann Rheum Dis. 2023;82(8):1059–1067 doi: 10.1136/ard-2023-224049

The objective of this study was to estimate the association of JAKi with the incidence of malignancy, compared with placebo, TNFi and MTX.

February 2023

Herpes zoster in Patients with Inflammatory Arthritides or Ulcerative Colitis Treated with Tofacitinib, Baricitinib or Upadacitinib: A Systematic Review of Clinical Trials and Real-world Studies

Overall, this evidence supports that HZ-risk is a “class” effect of JAKi, observing a higher risk compared to other non-biologic/biologic drugs . This study aimed to systematically review the incidence of HZ among RA, PsA, AS and UC patients treated with TOFA, BARI or UPA.

Overall, this evidence supports that HZ-risk is a “class” effect of JAKi, observing a higher risk compared to other non-biologic/biologic drugs . This study aimed to systematically review the incidence of HZ among RA, PsA, AS and UC patients treated with TOFA, BARI or UPA.

November 2022

Real-world population study of patients with RA provides reassuring data regarding the risks of major adverse cardiovascular events (MACEs) and venous thromboembolism events (VTEs) in patients initiating a JAKinib versus adalimumab, including patients at high risk of cardiovascular diseases.

October 2022

Nationwide register-based study in Sweden finds that patients with RA treated with JAKinibs in routine clinical practice are at increased risk of venous thromboembolism (VTE), compared with those treated with bDMARDs, an increase numerically confined to pulmonary embolism.

Data from the JAK-pot collaboration of registries show that cycling JAKinibs and switching to a bDMARD appear to have similar effectiveness, after failing the first JAKinib.

September 2022

Post hoc analysis findings provide the first data evaluating the importance of treatment order with JAKinib vs TNFi as initial therapy, suggesting that a JAKinib first strategy leads to more rapid improvements in treatment outcomes following csDMARD failure.

August 2022