Abstract
Background
Superficial siderosis (SS) of the central nervous system is a rare and heterogeneous condition due to deposition of hemosiderin on the surface of the brain and spinal cord. The usually progressive clinical course is characterized by a combination of hearing loss, cerebellar ataxia, and myelopathy. There is no known treatment for SS, but the iron chelator deferiprone (DFP) has been proposed as a potentially useful treatment.
Methods
We present a long-term (average 3.7 years) evaluation of four cases of SS treated with DFP (15 mg/kg po bid).
Results
Treatment with DFP proved safe and well tolerated. Two out of the four subjects were unchanged while the other two presented a clinical improvement with reduction of postural instability and cerebellar signs. Blinded evaluation of magnetic resonance imaging (performed every 6 months during follow-up) showed a reduction of the abnormal iron deposition for all patients.
Conclusions
This long-term observational study suggests that DFP may be effective in the management of the neurological manifestations associated with iron accumulation in SS.
Clinicaltrials.gov identifier
NTC00907283
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The trial was approved by the E.O. Ospedali Galliera Ethics Committee, and all participants gave written informed consent before entering the study (Clinicaltrials.gov identifier: NTC00907283).
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Cossu, G., Abbruzzese, G., Forni, G.L. et al. Efficacy and safety of deferiprone for the treatment of superficial siderosis: results from a long-term observational study. Neurol Sci 40, 1357–1361 (2019). https://doi.org/10.1007/s10072-019-03847-x
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DOI: https://doi.org/10.1007/s10072-019-03847-x