May 2019

Safety and Efficacy of Tofacitinib For Up to 9.5 Years in The Treatment of Rheumatoid Arthritis: Final Results of a Global, Open-Label, Long-Term Extension Study

Arthritis Res Ther. 2019 Apr 5;21(1):89.

TOF 5 mg and 10mg BID demonstrated a consistent safety profile and sustained efficacy for up to 9.5 years in this open-label LTE ORAL Sequel study.TOF 5 mg and 10 mg BID demonstrated consistent safety (as monotherapy and combination therapy) and efficacy within this open-label LTE study of RA patients. As RA requires long-term treatment, it’s important to assess the long-term efficacy and safety of RA therapies to understand the potential lifelong impact on patient health and quality of life. Th...

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April 2019

Tuberculosis, Hepatitis B and Herpes Zoster in Tofacitinib-Treated Patients with Rheumatoid Arthritis

Immunotherapy. 2019 Mar;11(4):321-333.

The risk of TB and hepatitis B virus (HBV) appears to be no greater with TOF than with bDMARDs. Most cases of TB during TOF studies occurred in regions with high background rate of TB, including east Asian countries. TOF is also associated with a higher rate of herpes zoster (HZ) compared with bDMARDs. DMARDs used to treat RA can increase the risk of infections by causing a degree of immunosuppression. A range of bacterial and viral infections have been observed in association with DMARD therapy...

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March 2019

Network Meta‐Analysis of Tofacitinib versus Biologic Treatments in Moderate‐to‐Severe Rheumatoid Arthritis Patients

J Clin Pharm Ther. 2019 Jun;44(3):384-396.

This study suggests that many bDMARDs and tsDMARDs can be considered equivalent therapeutic alternatives in bDMARD-naïve RA patients, with inadequate response to csDMARDs.In the absence of randomised controlled trials comparing drugs, indirect comparisons and network meta-analysis may provide information to help select an optimal treatment alternative. In this network meta-analysis, 27 randomized controlled trials were analysed to assess the possibility that some drugs on the market may be consi...

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February 2019

Comparisons of Hepatitis C Viral Replication in Patients with Rheumatoid Arthritis Receiving Tocilizumab, Abatacept and Tofacitinib Therapy

Ann Rheum Dis. 2019 Jun;78(6):849-850.

Tocilizumab (TCZ), abatacept (ABA) and tofacitinib (TOF) appear to have no major safety concerns for treatment of RA patients with hepatitis C virus (HCV) infections.HCV is an infectious disease which continues to present a major therapeutic challenge for clinicians in treating patients with RA. Previous reports demonstrate that the use of TNF targeted therapies in RA patients with HCV infections appear to have no major safety concerns. During short-term therapy with TCZ and ABA, data has shown ...

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Tofacitinib in Combination with Methotrexate in Patients with Rheumatoid Arthritis: Clinical Efficacy, Radiographic and Safety Outcomes from the 24-Month Phase 3 ORAL Scan Study

Arthritis Rheumatol. 2019 Jun;71(6):878-891

RA patients receiving TOF 5 or 10 mg BID plus MTX showed sustained clinical and radiographic treatment effects through months 12-24. The safety profile was consistent with previous TOF studies. The 12-month data from the ORAL Scan study have been previously reported. This report assesses durability of responses, including structural damage progression, and safety with TOF through 24 months. Patients were randomized 4:4:1:1 to receive TOF 5 or 10 mg BID, or PBO advanced to TOF with stable, backgr...

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January 2019

A Pooled analysis of the Safety of Tofacitinib as Monotherapy or in Combination with Background Conventional Synthetic Disease-Modifying Antirheumatic Drugs in a Phase 3 Rheumatoid Arthritis Population

Semin Arthritis Rheum. 2018 Dec;48(3):406-415. doi: 10.1016/j.semarthrit.2018.07.006.

In this pooled analysis of Phase 3 Tofacitinib (TOF) trials, safety profiles were generally similar between patients receiving monotherapy and combination therapy. Although selected adverse events of interest showed lower incidence rates (IRs) for TOF monotherapy patients.TOF has been studied as monotherapy and in combination with csDMARDs. In this post-hoc analysis, data were pooled from six Phase 3 TOF studies in RA patients to further examine the safety profile when used as monotherapy or in ...

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Comparative Risk of Venous Thromboembolism with Tofacitinib versus Tumour Necrosis Factor Inhibitor: A Cohort study of Rheumatoid Arthritis Patients

Desai RJ, et al. Arthritis Rheumatol. 2019 June;71(6):892-900.

Occurrences of venous thromboembolism (VTE) in 50, 865 RA patients initiating Tofacitinib (TOF) or a TNF inhibitor (TNFi) was infrequent. No significant risk of VTE for TOF versus TNFi was observed.Safety concerns of JAK inhibitor BARI include potentially increased risk of VTE at the higher 4 mg dose. It’s unclear if this is attributable to JAK-inhibition and extends to TOF. This study compared the risk of VTE with TOF, versus TNFi in real-world settings with RA patients.RA patients initiating T...

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December 2018

Professor Iain McInnes Reviews the Most Notable Papers from 2018

Please click the links below to go to the CSF review of each paper

2018 brought a wealth of new data in cytokine signalling and IL-6 that helps inform current clinical practice and brings the promise of new options in the future. There was good data on the use of sub cutaneous tocilizumab as well as strategies in early RA and for methotrexate tapering. For the currently marketed JAK inhibitors, tofacitinib and baricitinib, continuous long-term efficacy and safety data further support its current use and applications. On the development side, the outcomes of the...

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Evaluation of the Short-, Mid-, and Long-term Effects of Tofacitinib on Lymphocytes in Patients with Rheumatoid Arthritis

Arthritis Rheumatol 2018 DOI: 10. 1002/art.40780

Tofacitinib (TOF) treatment is associated with short-term transient increases in absolute lymphocyte counts (ALC), followed by a gradual decline to reach steady state by ~48 months. Changes in both ALC and lymphocyte subset counts (LSC) were reversible upon TOF discontinuation. Low ALC but not LSC were associated with an increased risk of serious infective episodes (SIEs) and herpes zoster (HZ). This data supported the treatment recommendations on ALC counts for starting and continuing therapy w...

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November 2018

Herpes zoster in Tofacitinib: Risk is Further Increased with Glucocorticoids but not Methotrexate

Arthritis Care Res 2018 DOI 10.1002/acr.23769

The rate of Herpes Zoster (HZ) in tofacitinib (TOF) users with concomitant glucocorticoids (GC) was approximately double that of other TOF combination therapies.TOF is an effective treatment for RA. Increased HZ risk has been observed with the use of JAK inhibitors, whereas the HZ risk with biologics and targeted RA therapies are comparable. This study evaluated the HZ risk in TOF users according to concomitant GC, MTX, both, or neither. MarketScan and Medicare data were used to identify 8030 rh...

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