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Treatment patterns following discontinuation of adalimumab, etanercept, and infliximab in a US managed care sample.

Abstract：

OBJECTIVES:Because clinical guidelines do not offer clear recommendations for treatment options after discontinuing a tumor necrosis factor (TNF) blocker, this study evaluated treatment patterns within 360 days after discontinuation of TNF-blocker treatment. METHODS:The IMS LifeLink Health Plan Claims database was used to identify patients diagnosed with rheumatoid arthritis, psoriasis, psoriatic arthritis, or ankylosing spondylitis who received etanercept, adalimumab, or infliximab between January 1, 2005 and March 31, 2009. Discontinuation from index (first) TNF blocker was defined as switching to a different TNF blocker or a >45-day gap in therapy. Patients were categorized into mutually exclusive groups in descending order: (a) restart of index TNF blocker; (b) switch to another TNF blocker; (c) switch to a different biologic; (d) switch to nonbiologic therapy; or (e) no new treatment. RESULTS:Among 27,704 patients who initiated TNF-blocker therapy, 14,707 (53%) patients discontinued treatment over 1-3 years of follow-up. Within 360 days of discontinuing index TNF blocker, 53.4% of patients restarted index therapy: etanercept 59.9%, adalimumab 46.5%, and infliximab 43.1% (P < 0.001 for etanercept vs. adalimumab and infliximab). The majority of therapy restarts occurred within the first 3 months after discontinuation. Other patients switched to another TNF blocker: etanercept 17.1%, adalimumab 19.1% (P = 0.010 vs. etanercept), and infliximab 15.0% (P = 0.009 vs. etanercept). Switches from index TNF blocker to non-TNF-blocker biologic therapy were low: etanercept 1.9%, adalimumab 4.1%, and infliximab 10.7% (P < 0.001 for etanercept vs. adalimumab and infliximab). Switches from index TNF blocker to nonbiologic treatments were 5.4% for etanercept, 6.5% for adalimumab, and 6.9% for infliximab. CONCLUSIONS:Restarting of index TNF-blocker therapy occurs frequently after discontinuation, suggesting that long gaps in TNF-blocker therapy may be common. A significantly higher proportion of etanercept patients restarted their index TNF blocker within 3 months of discontinuation, compared with adalimumab and infliximab patients.

journal_name

Adv Ther

journal_title

Advances in therapy

authors

Yeaw J,Watson C,Fox KM,Schabert VF,Goodman S,Gandra SR

doi

10.1007/s12325-014-0110-3

subject

Has Abstract

pub_date

2014-04-01 00:00:00

pages

410-25

issue

eissn

0741-238X

issn

1865-8652

journal_volume

pub_type

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Treatment patterns following discontinuation of adalimumab, etanercept, and infliximab in a US managed care sample.