Systemically administered PRO051 showed dose-dependent molecular efficacy in patients with Duchenne's muscular dystrophy, with a modest improvement in the 6-minute walk test after 12 weeks of extended treatment. (Funded by Prosensa Therapeutics; Netherlands National Trial Register number, NTR1241.).

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Neurogenic bladder sphincter dysfunction (NBSD) can cause severe and irreversible renal damage and bladder-wall destruction years before incontinence becomes an issue. Therefore, the first step in adequate management is to recognize early the bladder at risk for upper-and lower-tract deterioration and to start adequate medical treatment proactively. Clean intermittent catheterization combined with anticholinergics (oral or intravesical) is the standard therapy for NBSD. Early institution of such treatment can prevent both renal damage and secondary bladder-wall changes, thereby potentially improving longterm outcomes. In children with severe side effects or with insufficient suppression of detrusor overactivity despite maximal dosage of oral oxybutynin, intravesical instillation is an effective alternative. Intravesical instillation eliminates systemic side effects by reducing the first-pass metabolism and, compared with oral oxybutynin, intravesical oxybutynin is a more potent and long-acting detrusor suppressor. There is growing evidence that with early adequate treatment, kidneys are saved and normal bladder growth can be achieved in children so they will no longer need surgical bladder augmentation to achieve safe urinary continence in adolescence and adulthood.

We examined the efficacy, optimum dosage and adverse effects of levetiracetam in two prospective trials in children with epilepsy. In the add-on trial, 67 children between 6 months and 16 years were included. In the mono-therapy trial, 10 children between 4 years and 16 years were included. Levetiracetam was titrated up to an optimal dosage for every individual patient, depending on efficacy and tolerability, and reflecting clinical practice. The range of dosages used was between 12 and 62 mg/kg/day, with a median of 33 mg/kg/day. Overall, 20 weeks after the start of levetiracetam, there was a median seizure reduction of 60% (add-on trial 50%; mono-therapy trial 81%). Levetiracetam was equally effective for partial and generalized seizures. Side effects were less common in the mono-therapy trial. Tiredness (7.8%) and aggressiveness (5%) were the most common side effects, and were dose-related, but were no reason to discontinue levetiracetam. In 25% of the children, a positive effect was seen on behaviour and/or alertness. This could not be related directly to seizure control. Overall, these two clinical trials confirm that levetiracetam is a broad spectrum anti-epileptic drug with a favourable safety profile. The positive effect on behaviour needs further quantitative study.