Baricitinib as monotherapy for treatment of rheumatoid arthritis: analysis of real-world data

Current Medical Research and Opinion 2024;40:1993–2002 doi: 10.1080/03007995.2024.2416979.

Edwards et al. report on real-world data for baricitinib monotherapy in rheumatoid arthritis, showing significant disease activity reduction across multiple registries and observational studies. These findings reinforce the viability of baricitinib monotherapy in clinical practice for RA patients, complementing existing guidelines.

May 2024

Goldman, et al. conducted a pharmacovigilance study to evaluate the cardiovascular safety of JAK inhibitors in RA patients. The study demonstrated an increase in the reporting of VTE, stroke, and ischemic heart disease in patients treated with JAK inhibitor compared to bDMARDs, especially within the first year of treatment. This suggests a class effect of JAK inhibitors on cardiovascular risk, emphasising the need for ongoing surveillance and proactive cardiovascular risk management.

Crude gastrointestinal perforation (GIP) incidence rate was higher for the JAKi group compared with those receiving adalimumab, however rates of GIP did not differ between JAKi and adalimumab groups in the weighted and adjusted model. Hoisnard et al compared the risk of GIP in patients initiating treatment with JAKis or adalimumab among real-world patients with rheumatic disease.

March 2024

Unadjusted time to all-cause discontinuation was significantly longer with baricitinib treatment versus TNFi (estimated median prescription survival time of 704 days versus 448 days; log-rank P<0.01). This difference increased when only comparing differences for b/tsDMARD-naïve patients treated with baricitinib versus tofacitinib.

February 2024

Efficacy and safety of JAK inhibitors in rheumatoid arthritis: update for the practising clinician

Nat Rev Rheumatol 2024;20(2):101–115 DOI: 10.1038/s41584-023-01062-9

The observed benefit:risk ratio strongly favours JAKi use in the majority of patients, and HCPs should consider and adhere to guidance on high-risk patients where applicable. Szekanecz et al summarised the safety and efficacy of approved JAKis tofacitinib, baricitinib, upadacitinib, and filgotinib to aid in clinical decision making.

January 2024

Adalimumab demonstrated superiority over placebo in reducing fatigue in RA at 12 and 52 weeks. Other interventions, which included golimumab, baricitinib, sarilumab, tocilizumab, and tofacitinib, also proved effective in reducing fatigue in patients with RA. Secukinumab also reduced fatigue by Week 52 in patients with SpA.

This pooled analysis of four Phase 3 RCTs investigated the long-term efficacy baricitinib in patients with active RA who were MTX-IR, csDMARD-IR, or bDMARD-IR. They found that baricitinib demonstrated efficacy up to 6.5 years and was well tolerated.

December 2023

This multicentre, retrospective study by Hayashi, et al. found no significant differences in efficacy and safety between tofacitinib, baricitinib, peficitinib and upadacitinib in patients with RA. Predictive factors for resistance to LDA achievement included baseline CRP and CDAI for tofacitinib and baseline glucocorticoid dose, baseline CDAI and number of previous b/tsDMARDs for baricitinib.

Rates of MACE and VTE events in patients with RA or PsA treated are consistent across 15 mg and 30 mg doses of upadacitinib, and comparable with active comparators adalimumab and MTX. Several risk factors were also identified for MACE and VTE events in patients with RA.

October 2023

This retrospective inception cohort study investigated RA patients starting a new bDMARD or JAKi prescription between 01 August 2018 and 31 January 2022 from IQVIA’s Dutch Real-World Data Longitudinal Prescription database.