Children who suffer from behavioral and learning problems after their central nervous systems have been exposed to chemotherapy or radiation appear to benefit from treatment with methylphenidate (MPH), the drug commonly known by the brand name Ritalin. This finding, from investigators at St. Jude Children's Research Hospital, are published in the Dec. 1 issue of the Journal of Clinical Oncology (JCO).

The study suggests that MPH can at least temporarily reduce some of the attention and social deficits among survivors of childhood acute lymphoblastic leukemia (ALL) and brain tumors (BTs), the two most common forms of childhood cancer.

Previous studies have shown that these children are likely to develop significant cognitive and behavioral problems compared to their healthy peers, according to Raymond K. Mulhern, Ph.D., chief of St. Jude Behavioral Medicine. Mulhern is lead author of JCO report.

"Our three-week study gave us promising results for children suffering from attention and behavior problems due to their cancer treatments," Mulhern said. "Our future plans include follow-up evaluations of children who continue MPH treatment for three, six and 12 months. In addition to improvements in learning and behavior, we would also like to know if such treatment results in structural changes in the brain, as hypothesized by other researchers."

The St. Jude study is the first to examine the ability of two doses of MPH to reduce these problems at home and in the classroom among childhood cancer survivors.

The study included 83 long-term survivors, 40 of whom had survived ALL and 43 of whom survived BTs. The children (47 males and 36 females) were identified as having attention deficits as measured by specific tests and according to both parent and teacher reports. They ranged in age from six months to 14.3 years when they were first diagnosed with cancer, and 6.7 to 17.9 years when they were in
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Contact: Bonnie Cameron
bonnie.cameron@stjude.org
901-495-4815
St. Jude Children's Research Hospital
1-Dec-2004

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