Combination Therapy of Infantile Spasms With High-Dose Pyridoxal Phosphate and Low-Dose Corticotropin

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Abstract
A new combination therapy, high-dose pyridoxal phosphate (40 to 50 mg/kg daily) and low-dose corticotropin (0.01 mg [0.4 IU]/kg daily), was tried in 28 children with infantile spasms. Monotherapy with pyridoxal phosphate provided excellent seizure control in three (11%) of the 28 subjects. Corticotropin was subsequently added to the regimen of the remaining 25 patients. At 1 month after discontinuing corticotropin, 21 (84%) of the 25 patients experienced no seizures, and 22 (88%) of the 25 showed improvement in their electroencephalographic findings. The mean interval until achievement of seizure control was 4.1 days after the initiation of corticotropin. The outcome in the 21 patients has been followed for a mean period of 34.9 months (range, 2 to 81 months). Of these 21 patients, six (29%) have had relapses of infantile spasms, and 10 (48%) have experienced normal development. Transient increases in liver enzymes occurred in 14 (50%) of the 28 patients, but none of the patients developed more serious side effects. The investigators conclude that combination therapy with high-dose pyridoxal phosphate and low-dose corticotropin is a promising new therapy. (J Child Neurol 1996;11:35-40).