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Study Finds Citicoline Does Not Improve Functional, Cognitive Status in Patients with Traumatic Brain Injury
November 20, 2012
BOSTON – Although approved for use for treating traumatic brain injury (TBI) in nearly 60 countries, use of citicoline in a randomized trial that included more than 1,200 participants with TBI did not result in improvement in functional and cognitive status, according to a study appearing in the November 21 issue of JAMA, the Journal of the American Medical Association. The study led by Ross Zafonte DO of the Spaulding Rehabilitation Network and Harvard Medical School in Boston calls into question a widely used nutraceutical in the United States by patients with a range of neurologic disorders, yet until now had not been evaluated in a large randomized clinical trial for TBI.
“This is an important point to stop and review some approaches when using nutraceutical approaches for TBI populations,” said Dr. Zafonte. “The breadth and depth of this study severely calls into question some assumptions that have been made on citicoline and certainly merits further study.”
The paper reported that “Despite considerable advances in emergency and critical care management of TBI as well as decades of research on potential agents for neuroprotection or enhanced recovery, no effective pharmacotherapy has yet been identified.” Citicoline, an endogenous (produced within the body) compound, offers potential neuroprotective properties as well as neurorepair post injury.
Citicoline is widely available in the United States as an over the counter nutraceutical with some research showing it can assist with improving focus and brain activity. This has led to parents and patients using in case of Attention Deficit Disorder (ADD). In Europe and Japan it is also used with TBI and Stroke patients.
Dr. Zafonte and colleagues from a nationwide consortium conducted the study to evaluate the efficacy of citicoline for improving cognitive and functional status among patients with TBI. The Citicoline Brain Injury Treatment Trial (COBRIT), a phase 3, randomized clinical trial, was conducted between July 2007 and February 2011. The study, which included 1,213 patients at 8 U.S. level 1 trauma centers, examined the effects of 90 days of enteral or oral citicoline (2,000 mg) vs. placebo initiated within 24 hours of injury in patients with complicated mild, moderate, and severe TBI.
The researchers found that the citicoline and placebo groups did not differ significantly at the 90-day evaluation on measures of cognitive and functional status. “Rates of favorable improvement for the Glasgow Outcome Scale-Extended were 35.4 percent in the citicoline group and 35.6 percent in the placebo group. For all other scales the rate of improvement ranged from 37.3 percent to 86.5 percent in the citicoline group and from 42.7 percent to 84.0 percent in the placebo group.”
There was no significant treatment effect in the two severity subgroups (moderate/severe and complicated mild TBI). In patients with moderate/severe TBI, no statistically significant difference was observed between treatment groups at the 180-day evaluation.
The overall proportion of patients reporting serious adverse events was similar between the placebo and citicoline groups.
“The COBRIT study indicates that citicoline was not superior to placebo as an acute and postacute therapy among participants with a broad range of severity of TBI. The worldwide use of citicoline for TBI should now be questioned.”