对严重烧伤儿童给予氧雄龙后的5年结局：一项安全性与疗效随机临床试验

Background:

Oxandrolone, an anabolic agent, has been administered for 1year post burn with beneficial effects in pediatric patients. However, the long-lasting effects of this treatment have not been studied. This single-center prospective trial determined the long-term effects of 1year of oxandrolone administration in severely burned children; assessments were continued for up to 4years post therapy.

Study Design:

Patients 0 to 18years old with burns covering >30% of the total body surface area were randomized to receive placebo (n=152) or oxandrolone, 0.1mg/kg twice daily for 12months (n=70). At hospital discharge, patients were randomized to a 12-week exercise program or to standard of care. Resting energy expenditure, standing height, weight, lean body mass, muscle strength, bone mineral content (BMC), cardiac work, rate pressure product, sexual maturation, and concentrations of serum inflammatory cytokines, hormones, and liver enzymes were monitored.

Results:

Oxandrolone substantially decreased resting energy expenditure and rate pressure product, increased insulin-like growth factor-1 secretion during the first year after burn injury, and, in combination with exercise, increased lean body mass and muscle strength considerably. Oxandrolone-treated children exhibited improved height percentile and BMC content compared with controls. The maximal effect of oxandrolone was found in children aged 7 to 18years. No deleterious side effects were attributed to long-term administration.

Conclusions:

Administration of oxandrolone improves long-term recovery of severely burned children in height, BMC, cardiac work, and muscle strength; the increase in BMC is likely to occur by means of insulin-like growth factor-1. These benefits persist for up to 5years post burn