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Blood. 2010 Nov 18;116(20):4095-8. doi: 10.1182/blood-2010-06-293902. Epub 2010 Aug 16.

Improvement in hematological, visceral, and skeletal manifestations of Gaucher disease type 1 with oral eliglustat tartrate (Genz-112638) treatment: 2-year results of a phase 2 study.

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  • 1Hematology Research Center, Russian Academy of Medical Sciences, Moscow, Russia;

Erratum in

  • Blood. 2011 May 19;117(20):5551.


Eliglustat tartrate is an investigational oral substrate reduction therapy for Gaucher disease type 1 that is pharmacologically distinct from intravenous enzyme replacement therapy. Eliglustat tartrate improved clinical manifestations in patients who received 50 or 100 mg twice daily for 1 year during an open-label phase 2 study (Blood. 2010;116(6):893-899). We report further improvements after 2 years of treatment in 20 patients (11 females, 9 males; mean age, 33 years) with baseline splenomegaly and thrombocytopenia and/or anemia. Statistically significant (P < .001) percentage improvements from baseline occurred in platelet count (mean ± SD, 81% ± 56%), hemoglobin level (20% ± 15%), spleen volume (-52% ± 11%), and liver volume (-24% ± 13%). Mean platelet count increased ∼ 50 000/mm(3). Mean hemoglobin level increased 2.1 g/dL overall and 3.1 g/dL in 10 patients with baseline anemia. Organ volume reductions were greatest in patients with severe baseline organomegaly. Seventeen (85%) patients met established therapeutic goals for ≥ 3 of the 4 parameters. Lumbar spine bone mineral density increased 7.8% ± 10.6% (P = .01) and T-score 0.6 ± 0.8 (P = .012), with major gains in osteoporotic and osteopenic patients. Magnetic resonance imaging assessment showed that bone marrow infiltration by Gaucher cells was decreased (8/18 patients) or stable (10/18 patients). No safety-related trends emerged during 2 years of treatment. This multisite, open-label, single-arm phase 2 study is registered at as NCT00358150.

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