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Orphanet J Rare Dis. 2019 Oct 21;14(1):228. doi: 10.1186/s13023-019-1207-1.

Expanded access with intravenous hydroxypropyl-β-cyclodextrin to treat children and young adults with Niemann-Pick disease type C1: a case report analysis.

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Department of Pediatric Hematology Oncology, UCSF Benioff Children's Hospital Oakland, 747 52nd Street, Oakland, CA, 94609-1809, USA.
Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.
Universidade Federal da Bahia, Clínica Citta, Ed. Mundo Plaza, Av. Tancredo Neves, 620, Sala 1905, Camino dos Árvares, Salvador, Brazil.
GI & Liver Clinics, Highland Hospital, Alameda Health System, Highland Hospital, Oakland, CA, USA.
Division of Gastroenterology & Hepatology, Highland Hospital, Alameda Health Systems, Highland Care Pavilion 5th floor, 1411 East 31st Street, Oakland, CA, 94602, USA.
Department of Pediatric Hematology Oncology, UCSF Benioff Children's Hospital Oakland, 747 52nd Street, Oakland, CA, 94609-1809, USA.
UCSF Benioff Children's Hospital Oakland, Oakland, CA, USA.
Present Address: Neuroscience Graduate Program, Brown University, 185 Meeting Street, Box GL-N, Providence, RI, 02912, USA.
Division of Metabolic Disorders, Children's Hospital of Orange County, CHOC Children's Specialists, 1201 W. La Veta Ave, Orange, CA, 92868, USA.
Department of Pediatrics, University of California, Irvine School of Medicine, Irvine, CA, 92868, USA.
Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.
CTD Holdings, Inc., P.O. Box 1180, Alachua, FL, 32616, USA.



Niemann-Pick Disease Type C (NPC) is an inherited, often fatal neurovisceral lysosomal storage disease characterized by cholesterol accumulation in every cell with few known treatments. Defects in cholesterol transport cause sequestration of unesterified cholesterol within the endolysosomal system. The discovery that systemic administration of hydroxypropyl-beta cyclodextrin (HPβPD) to NPC mice could release trapped cholesterol from lysosomes, normalize cholesterol levels in the liver, and prolong life, led to expanded access use in NPC patients. HPβCD has been administered to NPC patients with approved INDs globally since 2009.


Here we present safety, tolerability and efficacy data from 12 patients treated intravenously (IV) for over 7 years with HPβCD in the US and Brazil. Some patients subsequently received intrathecal (IT) treatment with HPβCD following on average 13 months of IV HPβCD. Several patients transitioned to an alternate HPβCD. Moderately affected NPC patients treated with HPβCD showed slowing of disease progression. Severely affected patients demonstrated periods of stability but eventually showed progression of disease. Neurologic and neurocognitive benefits were seen in most patients with IV alone, independent of the addition of IT administration. Physicians and caregivers reported improvements in quality of life for the patients on IV therapy. There were no safety issues, and the drug was well tolerated and easy to administer.


These expanded access data support the safety and potential benefit of systemic IV administration of HPβCD and provide a platform for two clinical trials to study the effect of intravenous administration of HPβCD in NPC patients.


Hydroxypropyl-beta-cyclodextrin; Intravenous administration; Investigational new drug, hepatomegaly, splenomegaly, lung disease; Niemann-pick disease type C

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