2CARE.

Trial name or title	Coenzyme Q10 in Huntington's Disease.
Methods	5‐year randomised, double‐blind, parallel study.
Participants	Clinical features of HD and confirmatory family history of HD and/or genetically confirmed HD. ≥16 years of age.
Interventions	Coenzyme Q10 2400 mg/day vs placebo.
Outcomes	Primary: change in total functional capacity. Secondary: change in other UHDRS scores, tolerability and safety, time to decline in TFC by 2 and 3 points.
Starting date	March 2008.
Contact information	Huntington Study Group (1‐800‐487‐7671).
Notes