Oxandrolone Improves Height Velocity and BMI in Patients with Cystic Fibrosis
Todd Varness1, Erin E Seffrood, Ellen L Connor
1Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, H4/4 Clinical Science Center, 600 Highland Avenue, Madison, WI 53792-4108, USA.
Insights
Oxandrolone significantly improved height velocity and BMI z score in pediatric cystic fibrosis (CF) patients. This anabolic steroid showed potential for enhancing growth and nutritional status in CF, with no reported adverse events.
Area of Science:
- Pediatric Endocrinology
- Pulmonology
- Nutritional Science
Background:
- Cystic Fibrosis (CF) is a genetic disorder affecting multiple organs, often leading to malnutrition and growth failure.
- Optimizing nutritional status and linear growth is crucial for improving outcomes in pediatric CF patients.
- Anabolic steroids are sometimes considered to address growth deficits in chronic diseases.
Observation:
- A retrospective review of 5 pediatric CF patients (ages 8.5-14.5 years) treated with oxandrolone (2.5 mg daily for 8-38 months) was conducted.
- Key metrics including height z score, height velocity (HV), BMI z score, weight velocity (WV), and pulmonary function were analyzed.
- Data were compared pre- and post-oxandrolone treatment.
Findings:
- Oxandrolone treatment led to a statistically significant improvement in height velocity (HV) (P < .01) and BMI z score (P = .02).
- Beneficial trends were observed for height z score and weight velocity (WV), though they did not reach statistical significance.
- No adverse events were reported during the study period.
Implications:
- Oxandrolone may be an effective therapeutic option for improving linear growth and nutritional status in pediatric CF patients.
- Further large-scale studies are warranted to confirm the efficacy, safety, and cost-effectiveness of oxandrolone in CF.
- This finding could inform treatment strategies aimed at enhancing growth and overall health in children with cystic fibrosis.
Abstract:
Objective. To evaluate the effectiveness of oxandrolone in improving the nutritional status and linear growth of pediatric patients with cystic fibrosis (CF). Methods. Medical records of patients with CF treated with oxandrolone were reviewed for height z score, height velocity (HV), BMI z score, weight velocity (WV), Tanner stage, pulmonary function, liver enzyme levels, and any reported adverse events. Data were compared before (pre-Ox) and after (Ox) oxandrolone using a paired t-test. Results. 5 subjects (ages 8.5-14.5 years) were treated with oxandrolone 2.5 mg daily for 8-38 months. After 8-12 months of treatment, there was a statistically significant improvement in HV (pre-Ox = 5.3 +/- 1.4 cm/yr, Ox = 8.3 +/- 1.2 cm/yr, P < .01) and BMI z score (pre-Ox = -0.61 +/- 1.04, Ox = -0.30 +/- 0.86, P = .02). Both height z score (pre-Ox = -1.64 +/- 0.63, Ox = -1.30 +/- 0.49, P = .057) and WV (pre-Ox = 4.2 +/- 3.7 kg/yr, Ox = 6.8 +/- 1.0 kg/yr, P = .072) showed beneficial trends that did not reach statistical significance. No adverse events were reported. Conclusions. In this brief clinical report, oxandrolone improved the HV and BMI z score in patients with CF. Larger studies are needed to determine if oxandrolone is an effective, safe, and affordable option to stimulate appetite, improve weight gain, and promote linear growth in patients with CF.
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