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Randomized Controlled Trial of Ethyl-Eicosapentaenoic Acid in Huntington Disease The TREND-HD Study
Journal article   Peer reviewed

Randomized Controlled Trial of Ethyl-Eicosapentaenoic Acid in Huntington Disease The TREND-HD Study

E. R. Dorsey, I. Shoulson, B. Leavitt, C. Ross, C. A. Beck, E. A. de Blieck, J. T. Greenamyre, S. M. Hersch, K. Kieburtz, K. Marder, …
Archives of neurology (Chicago), Vol.65(12), pp.1582-1589
12/01/2008
DOI: 10.1001/archneur.65.12.1582
PMID: 19064745

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Abstract

Objective: To determine whether ethyl-eicosapentaenoic acid (ethyl-EPA), an omega-3 fatty acid, improves the motor features of Huntington disease. Design: Six-monthmulticenter, randomized, double-blind, placebo-controlled trial followed by a 6-month open-label phase without disclosing initial treatment assignments. Setting: Forty-one research sites in the United States and Canada. Patients: Three hundred sixteen adults with Huntington disease, enriched for a population with shorter trinucleotide (cytosine-adenine-guanine) repeat length expansions. Interventions: Random assignment to placebo or ethyl-EPA, 1 g twice a day, followed by open-label treatment with ethyl-EPA. Main Outcome Measures: Six-month change in the Total Motor Score 4 component of the Unified Huntington's Disease Rating Scale analyzed for all research participants and those with shorter cytosine-adenine-guanine repeat length expansions (< 45). Results: At 6 months, the Total Motor Score 4 point change for patients receiving ethyl-EPA did not differ from that for those receiving placebo. No differences were found in measures of function, cognition, or global impression. Before public disclosure of the 6-month placebo-controlled results, 192 individuals completed the open-label phase. The Total Motor Score 4 change did not worsen for those who received active treatment for 12 continuous months compared with those who received active treatment for only 6 months (2.0-point worsening; P=.02). Conclusion: Ethyl-EPA was not beneficial in patients with Huntington disease during 6 months of placebo-controlled evaluation.
Clinical Neurology Life Sciences & Biomedicine Neurosciences & Neurology Science & Technology

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