Oxandrolone for the treatment of bone marrow failure in Fanconi anemia.

BACKGROUND: A majority of Fanconi anemia (FA) patients will experience bone marrow failure (BMF) and androgen therapy (most often oxymetholone) may be utilized as a treatment to improve BMF-related cytopenias. However, oxymetholone is associated with toxicities making identification of other agents of interest. In this study we aimed to evaluate the toxicity profile and hematologic response in patients with FA who are treated with low-dose oxandrolone, a synthetic non-fluorinated anabolic steroid, similar to oxymetholone, with known dosing thresholds for virilization. PROCEDURE: A single arm, Phase I/II study was designed to treat patients on low-dose oxandrolone. If no toxicity or hematologic response was noted at 16 weeks, a single dose escalation was offered. Subjects were regularly assessed for toxicity, including determinations of virilization, behavioral changes, and liver and kidney function. At 32 weeks, those who demonstrated hematologic response were allowed to continue study treatment, and those without improvement were deemed non-responsive. RESULTS: Nine subjects completed the study and were followed for a median of 99 weeks (46-136 weeks). Three (33.3%) subjects developed mild sub-clinical virilization and continued treatment with a dose reduction. None (0%) had adverse behavioral changes. Two (22.2%) developed elevated liver function tests at 42 and 105 weeks. Seven (77.8%) subjects had a hematologic response. CONCLUSION: Oxandrolone appears to be well-tolerated, has limited toxicities at the administered doses in FA with patients, and may be an alternative androgen for the treatment of BMF in FA.

Everolimus for subependymal giant-cell astrocytomas in tuberous sclerosis.

BACKGROUND: Neurosurgical resection is the standard treatment for subependymal giant-cell astrocytomas in patients with the tuberous sclerosis complex. An alternative may be the use of everolimus, which inhibits the mammalian target of rapamycin, a protein regulated by gene products involved in the tuberous sclerosis complex. METHODS: Patients 3 years of age or older with serial growth of subependymal giant-cell astrocytomas were eligible for this open-label study. The primary efficacy end point was the change in volume of subependymal giant-cell astrocytomas between baseline and 6 months. We gave everolimus orally, at a dose of 3.0 mg per square meter of body-surface area, to achieve a trough concentration of 5 to 15 ng per milliliter. RESULTS: We enrolled 28 patients. Everolimus therapy was associated with a clinically meaningful reduction in volume of the primary subependymal giant-cell astrocytoma, as assessed on independent central review (P<0.001 for baseline vs. 6 months), with a reduction of at least 30% in 21 patients (75%) and at least 50% in 9 patients (32%). Marked reductions were seen within 3 months and were sustained. There were no new lesions, worsening hydrocephalus, evidence of increased intracranial pressure, or necessity for surgical resection or other therapy for subependymal giant-cell astrocytoma. Of the 16 patients for whom 24-hour video electroencephalography data were available, seizure frequency for the 6-month study period (vs. the previous 6-month period) decreased in 9, did not change in 6, and increased in 1 (median change, -1 seizure; P=0.02). The mean (±SD) score on the validated Quality-of-Life in Childhood Epilepsy questionnaire (on which scores can range from 0 to 100, with higher scores indicating a better quality of life) was improved at 3 months (63.4±12.4) and 6 months (62.1±14.2) over the baseline score (57.8±14.0). Single cases of grade 3 treatment-related sinusitis, pneumonia, viral bronchitis, tooth infection, stomatitis, and leukopenia were reported. CONCLUSIONS: Everolimus therapy was associated with marked reduction in the volume of subependymal giant-cell astrocytomas and seizure frequency and may be a potential alternative to neurosurgical resection in some cases, though long-term studies are needed. (Funded by Novartis; ClinicalTrials.gov number, NCT00411619.).

Preferential loss of central (trunk) adiposity in adolescents and young adults after laparoscopic gastric bypass.

BACKGROUND: An increasing number of young people are developing severe obesity with adult-like co-morbidities and undergoing bariatric surgery. Although a number of studies have described major weight loss after bariatric surgery, none have examined the proportions of lean body and fat mass lost or the potentially more important issue of changes in regional fat mass distribution after laparoscopic gastric bypass surgery. METHODS: Five morbidly obese females (mean age 18) were evaluated by standard anthropometric measures and dual energy x-ray absorptiometry at baseline and 1 year after bariatric surgery. The mean and SD values for the anthropometric and dual energy x-ray absorptiometry body composition variables were calculated, and the differences were evaluated using paired t tests. RESULTS: Significant body mass index and weight loss were seen in all subjects at 1 year, with the percentage of excess weight loss at 63.4%. Overall fat mass loss exceeded lean mass loss by threefold in this cohort (P <.01), demonstrating the relative sparing of lean mass. Their waist circumference also decreased significantly. Using dual energy x-ray absorptiometry analysis, the vast majority (83%) of central mass loss consisted of adipose tissue. Central fat loss significantly exceeded peripheral fat loss by 1.6-fold (P = .03). CONCLUSION: These results have demonstrated the preferential loss of central adiposity in morbidly obese young women after 1 year of surgical weight loss and may be more informative than anthropometric measurements alone. Given the association between central adiposity and the risk of subsequent cardiovascular disease, these results are suggestive of reduced cardiac risk.