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Tocilizumab Scores FDA Approval for SSc-ILD | Nutrition Fit


The Food and Drug Administration has approved subcutaneously-injected tocilizumab (Actemra) to reduce the rate of pulmonary function decline in systemic sclerosis–associated interstitial lung disease (SSc-ILD) patients, according to a press release from manufacturer Genentech.

Tocilizumab is the first biologic to be approved by the agency for adults with SSc-ILD, a rare and potentially life-threatening condition that may affect up to 80% of SSc patients and lead to lung inflammation and scarring.

The approval was based primarily on data from a phase 3 randomized, double-blind, placebo-controlled clinical trial (the focuSSced trial) that included 212 adults with SSc. Although that study failed to meet its primary endpoint of change from baseline to 48 weeks in the modified Rodnan Skin Score, the researchers observed a significantly reduced lung function decline as measured by forced vital capacity (FVC) and percent predicted forced vital capacity (ppFVC) among tocilizumab-treated patients, compared with those who received placebo. A total of 68 patients (65%) in the tocilizumab group and 68 patients (64%) in the placebo group had SSc-ILD at baseline.

In a subgroup analysis, patients taking tocilizumab had a smaller decline in mean ppFVC, compared with placebo patients (0.07% vs. –6.4%; mean difference, 6.47%), and a smaller decline in FVC (mean change –14 mL vs. –255 mL with placebo; mean difference, 241 mL).

The mean change from baseline to week 48 in modified Rodnan Skin Score was –5.88 for patients on tocilizumab and –3.77 with placebo.

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Safety data were similar between tocilizumab and placebo groups through 48 weeks, and similar for patients with and without SSc-ILD. In general, tocilizumab side effects include increased susceptibility to infections, and serious side effects may include stomach tears, hepatotoxicity, and increased risk of cancer and hepatitis B, according to the prescribing information. However, the most common side effects are upper respiratory tract infections, headache, hypertension, and injection-site reactions.

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Tocilizumab, an interleukin-6 receptor antagonist, is already approved for the treatment of adult patients with moderately to severely active rheumatoid arthritis, as well as for adult patients with giant cell arteritis; patients aged 2 years and older with active polyarticular juvenile idiopathic arthritis or active systemic juvenile idiopathic arthritis; and adults and pediatric patients 2 years of age and older with chimeric antigen receptor T-cell–induced severe or life-threatening cytokine release syndrome.

Prescribing information is available here.

This article originally appeared on MDedge.com, part of the Medscape Professional Network.





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