- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02939547
Study of the Pharmacokinetics of Trappsol and Effects on Potential Biomarkers of Niemann-Pick C1 (NPC1)
A Phase I Study to Evaluate the Single and Multiple-dose Pharmacokinetics of Intravenous Trappsol Cyclo (HP-Beta-CD) in Patients With Niemann-Pick Disease Type C (NPC-1) and the Effects of Dosing Upon Biomarkers of NPC Disease
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The planned study has been designed as a Phase I, double-blind, randomised, multi-centre, parallel group study based on information and data available from the administration of Trappsol Cyclo via compassionate/named patient use in patients with NPC-1, and data on other cyclodextrin products in the scientific literature.
The study is comprised of a screening phase of up to 4w a treatment phase of 12w and a 4w follow-up. The primary objective is to compare the plasma pharmacokinetics of single and multiple doses of two different levels of IV Trappsol Cyclo. Secondary objectives include investigation of the HP-β-CD effect of different doses of IV Trappsol Cyclo upon serum and lymphocytic markers of cholesterol metabolism and evaluation of Trappsol concentrations in the cerebrospinal fluid (CSF) following IV administration , evaluation of the impact of treatment upon measures of neurological function including ataxia, aphasia and saccadic eye movements, and the impact of treatment upon behavioral aspects of NPC-1.
It is planned to recruit a total of 12 patients to the study. Patients will be randomised 1:1 to one of the two dose levels (1500 mg/kg or 2500 mg/kg; six patients per dose level). Treatment will be administered every two weeks by slow IV infusion over 8 to 9 hours at different concentrations to achieve the proscribed dose levels. Patients will receive treatment for a total of 12 weeks. Patients who withdraw prior to completion of the initial pharmacokinetic and pharmacodynamic assessments will be replaced.
The design of the proposed study thus enables early assessment of potential biochemical markers of response but allows for a sufficient dosing duration to enable the short-term effectiveness of Trappsol in NPC to be assessed.
The maximum dose proposed for this study is below the maximum dose for which long term clinical data is available in 2 patients (2800 mg/kg weekly for 3-5 years). Although individual clinicians have not always utilized an escalating rate of infusion, the reports of infusion related reactions in three patients suggest that this is an appropriate clinical strategy to mitigate the risk of such events and is consistent with dosing administration for other therapeutic agents. In the proposed study, treatment will be administered less frequently than has been undertaken in compassionate use. This longer dosing interval is supported by nonclinical data comparing the metabolism of cholesterol in non-human species with that in man; although a once weekly dosing interval was initially studied in man based on data in the mouse, HP-β-CD cholesterol metabolism/turnover in the mouse is 13-fold higher than in man which, in NPC, likely translates into a 13-fold slower accumulation of cholesterol in human cells compared with those of the mouse. Therefore, it is theorized that, given the slower cholesterol metabolism in humans, the dosing interval could be much less frequent in man than in mouse; however, based on what is known about cholesterol metabolism in humans and the pharmacokinetic and pharmacodynamic effect of HP-β-CD in the mouse, a dosing interval of 2 weeks in man is likely to be well within the therapeutic dosing interval and also minimizes the amount of infusions required to be administered.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
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California
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Oakland, California, United States, 94609
- UCSF Benioff Children's Hospital Oakland
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New Jersey
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Morristown, New Jersey, United States, 07960
- Atlantic Health System/Morristown Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Confirmed diagnosis of NPC-1 defined as one of the following
- Two NPC-1 mutations on exome gene sequencing
- One NPC-1 mutation and positive filipin staining (current or prior)
- Vertical supranuclear gaze palsy [VSGP] plus either ≥ one NPC-1 mutation or positive filipin staining and no NPC-2 mutations
- NIH NPC Severity Score <30 and with no more than 4 individual domains with a score ≥ 3.
- Age range: 18 years upwards
At least one systemic manifestation of NPC disease defined as one or more of
- Clinically detectable hepatomegaly and/or either ALT or AST outside the normal range for the study laboratory
- Clinically detectable splenomegaly
- Impaired respiratory function due to NPC or a history of pneumonia in the last 12 months
- Negative urine pregnancy test for females of child bearing potential
- Written, informed consent
Exclusion Criteria:
- The presence of NPC-2 mutations on exome gene sequencing
- Previous receipt of cyclodextrin therapy within 3 months of baseline
- Receipt of any of the following medications within 1 month of baseline: Coenzyme Q10, curcumin, cinnamon, fish oil supplements, high dose vitamin D (>500 milli-International unit (mIU)/day), acetyl leucine, or gingko biloba
- Concurrent treatment with any therapy indicated for the lowering of cholesterol such as statins, fibrates, ezetimibe
- Karnofsky score < 40
- Inability to comply with the proposed protocol assessments or any uncertainty about their ability to give meaningful, informed consent (legal guardian may give consent with patient assent)
- Concurrent medical conditions representing a contraindication to any of the study medications
- Grade 3 renal impairment or worse as indicated by eGFR< 60mL/min/1.73m2
- Clinical evidence of acute liver disease including symptoms of jaundice or right upper quadrant pain or INR >1.8
- Involvement in another interventional clinical trial within the previous 6 months from baseline
- Weight <40 kg or >100 kg
- Male patients and female patients of childbearing potential who are not willing to use appropriate birth control (i.e. double barrier birth control) from enrolment until the follow-up visit
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Hydroxypropyl-beta-cyclodextrin IV 1500 mg/kg
Hydroxypropyl-beta-cyclodextrin administered by slow IV infusion for 8 - 9h every 2 weeks
|
Used in the treatment of Niemann-Pick Disease C1 ( NPC1)
Other Names:
|
Active Comparator: Hydroxypropyl-beta-cyclodextrin IV 2500 mg/kg
Hydroxypropyl-beta-cyclodextrin administered by slow IV infusion for 8 - 9h every 2 weeks
|
Used in the treatment of Niemann-Pick Disease C1 ( NPC1)
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Maximum Concentration ( C max) of Trappsol in plasma from patients with Niemann-Pick disease Type C1 by measurement of plasma levels
Time Frame: Pre- infusion then 2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
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To compare the C max of Trappsol following 2 different dose levels of intravenous Trappsol in patients with NPC-1 disease following single and multiple doses
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Pre- infusion then 2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
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Time to Maximum Concentration (T max) of Trappsol in plasma from patients with Niemann-Pick disease Type C1 by measurement of plasma levels
Time Frame: Pre- infusion,2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
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To compare the T max of Trappsol following 2 different dose levels of intravenous Trappsol in patients with NPC-1 disease following single and multiple doses
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Pre- infusion,2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
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Volume of Distribution of Trappsol in plasma from patients with Niemann-Pick disease Type C1 by measurement of plasma levels
Time Frame: Pre- infusion,2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
|
To compare the Volume of Distribution of Trappsol following 2 different dose levels of intravenous Trappsol in patients with NPC-1 disease following single and multiple doses
|
Pre- infusion,2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
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Elimination half-life (T1/2) of Trappsol in plasma from patients with Niemann-Pick disease Type C1 by measurement of plasma levels
Time Frame: Pre- infusion,2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
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To compare the T1/2 of Trappsol following 2 different doses.
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Pre- infusion,2 ,4,6,8,8.5,9,10,11 12,16 and 20 hours after the start of the infusions at 1&12 w
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
CSF levels of Trappsol
Time Frame: Pre-infusion then 2,4,6,8,12 hours after the first infusion ( w1) and 8h after the start of the last infusion (W12)
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To evaluate HP-β-CD concentrations in CSF following 2 different dose levels of intravenous Trappsol in patients with NPC-1 disease following single and multiple doses
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Pre-infusion then 2,4,6,8,12 hours after the first infusion ( w1) and 8h after the start of the last infusion (W12)
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Potential blood biomarkers of NPC1
Time Frame: Screening, baseline,then at 2,4,8,12 and 14 weeks
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To investigate the effect of 2 different doses of intravenous Trappsol upon peripheral blood biomarkers of NPC-1 disease
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Screening, baseline,then at 2,4,8,12 and 14 weeks
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Potential CSF biomarkers of NPC1
Time Frame: Baseline, then at 12 and 14 weeks
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To investigate the effect of 2 different doses of intravenous Trappsol upon biomarkers of NPC-1 disease in CSF
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Baseline, then at 12 and 14 weeks
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Serum cholesterol precursors and metabolites
Time Frame: Screening, baseline the Days1,3,,5,8,11 and 15 after the first infusion of Trappsol then at d2,3,5,8,11and 15 after the last infusion ( W12)
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To investigate the effect of 2 different doses of intravenous Trappsol in patients with NPC-1 disease upon serum and lymphocytic markers of cholesterol metabolism
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Screening, baseline the Days1,3,,5,8,11 and 15 after the first infusion of Trappsol then at d2,3,5,8,11and 15 after the last infusion ( W12)
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Fractionated cholesterol in hepatic tissue
Time Frame: Baseline and 12 weeks
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To investigate the effect of 2 different doses of intravenous Trappsol in patients with NPC-1 disease upon fractionated cholesterol in hepatic tissue
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Baseline and 12 weeks
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Splenic morphology assessed by qualitative change in ultrasound compared with baseline, NIH total and individual domain severity scores
Time Frame: Baseline then 14 weeks
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To evaluate the effect of 2 different doses of Trappsol upon change in clinical manifestations of NPC-1 disease
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Baseline then 14 weeks
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Hepatic morphology assessed by qualitative change in ultrasound compared with baseline, NIH total and individual domain severity scores
Time Frame: Baseline then 14 weeks
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To evaluate the effect of 2 different doses of Trappsol upon change in clinical manifestations of NPC-1 disease
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Baseline then 14 weeks
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Number of patients with treatment-related adverse events as graded by CTCAE criteria ( Version 4.03)
Time Frame: Screening, baseline, days 1, 2-11, weeks 2,4,6,810,12,14 and 18
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Events will be gathered by spontaneous reporting, clinical observation and laboratory tests including auditory tests and auditory evoked potentials to assess hearing
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Screening, baseline, days 1, 2-11, weeks 2,4,6,810,12,14 and 18
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Hepatic elasticity
Time Frame: Baseline and 14weeks
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To investigate the effect of 2 different doses of intravenous Trappsol upon hepatic elasticity (measured by ultrasound scan) at 14 weeks (after 7 doses) in patients with NPC-1 disease
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Baseline and 14weeks
|
Filipin signal intensity
Time Frame: Baseline and 12weeks
|
To investigate the effect of 2 different doses of intravenous Trappsol on filipin signal intensity (measured in cultured fibroblasts collected by skin biopsy) at 14 weeks (after 7 doses) in patients with NPC-1 disease
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Baseline and 12weeks
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Caroline Hastings, MD, Oakland CA
Publications and helpful links
General Publications
- Folstein MF, Folstein SE, McHugh PR. "Mini-mental state". A practical method for grading the cognitive state of patients for the clinician. J Psychiatr Res. 1975 Nov;12(3):189-98. doi: 10.1016/0022-3956(75)90026-6. No abstract available.
- Kamper SJ, Maher CG, Mackay G. Global rating of change scales: a review of strengths and weaknesses and considerations for design. J Man Manip Ther. 2009;17(3):163-70. doi: 10.1179/jmt.2009.17.3.163.
- Battisti C, Tarugi P, Dotti MT, De Stefano N, Vattimo A, Chierichetti F, Calandra S, Federico A. Adult onset Niemann-Pick type C disease: A clinical, neuroimaging and molecular genetic study. Mov Disord. 2003 Nov;18(11):1405-9. doi: 10.1002/mds.10541.
- Fischer D, Stewart AL, Bloch DA, Lorig K, Laurent D, Holman H. Capturing the patient's view of change as a clinical outcome measure. JAMA. 1999 Sep 22-29;282(12):1157-62. doi: 10.1001/jama.282.12.1157.
- Giese AK, Mascher H, Grittner U, Eichler S, Kramp G, Lukas J, te Vruchte D, Al Eisa N, Cortina-Borja M, Porter FD, Platt FM, Rolfs A. A novel, highly sensitive and specific biomarker for Niemann-Pick type C1 disease. Orphanet J Rare Dis. 2015 Jun 17;10:78. doi: 10.1186/s13023-015-0274-1.
- Gould S, Scott RC. 2-Hydroxypropyl-beta-cyclodextrin (HP-beta-CD): a toxicology review. Food Chem Toxicol. 2005 Oct;43(10):1451-9. doi: 10.1016/j.fct.2005.03.007. Epub 2005 Apr 19.
- Greer WL, Dobson MJ, Girouard GS, Byers DM, Riddell DC, Neumann PE. Mutations in NPC1 highlight a conserved NPC1-specific cysteine-rich domain. Am J Hum Genet. 1999 Nov;65(5):1252-60. doi: 10.1086/302620.
- King KA, Gordon-Salant S, Yanjanin N, Zalewski C, Houser A, Porter FD, Brewer CC. Auditory phenotype of Niemann-Pick disease, type C1. Ear Hear. 2014 Jan-Feb;35(1):110-7. doi: 10.1097/AUD.0b013e3182a362b8.
- Liu B, Li H, Repa JJ, Turley SD, Dietschy JM. Genetic variations and treatments that affect the lifespan of the NPC1 mouse. J Lipid Res. 2008 Mar;49(3):663-9. doi: 10.1194/jlr.M700525-JLR200. Epub 2007 Dec 12.
- Liu B, Turley SD, Burns DK, Miller AM, Repa JJ, Dietschy JM. Reversal of defective lysosomal transport in NPC disease ameliorates liver dysfunction and neurodegeneration in the npc1-/- mouse. Proc Natl Acad Sci U S A. 2009 Feb 17;106(7):2377-82. doi: 10.1073/pnas.0810895106. Epub 2009 Jan 26.
- Mattsson N, Zetterberg H, Bianconi S, Yanjanin NM, Fu R, Mansson JE, Porter FD, Blennow K. Miglustat treatment may reduce cerebrospinal fluid levels of the axonal degeneration marker tau in niemann-pick type C. JIMD Rep. 2012;3:45-52. doi: 10.1007/8904_2011_47. Epub 2011 Sep 28.
- Naureckiene S, Sleat DE, Lackland H, Fensom A, Vanier MT, Wattiaux R, Jadot M, Lobel P. Identification of HE1 as the second gene of Niemann-Pick C disease. Science. 2000 Dec 22;290(5500):2298-301. doi: 10.1126/science.290.5500.2298.
- Neufeld EB, Cooney AM, Pitha J, Dawidowicz EA, Dwyer NK, Pentchev PG, Blanchette-Mackie EJ. Intracellular trafficking of cholesterol monitored with a cyclodextrin. J Biol Chem. 1996 Aug 30;271(35):21604-13. doi: 10.1074/jbc.271.35.21604.
- Park WD, O'Brien JF, Lundquist PA, Kraft DL, Vockley CW, Karnes PS, Patterson MC, Snow K. Identification of 58 novel mutations in Niemann-Pick disease type C: correlation with biochemical phenotype and importance of PTC1-like domains in NPC1. Hum Mutat. 2003 Oct;22(4):313-25. doi: 10.1002/humu.10255.
- Patterson MC, Vecchio D, Prady H, Abel L, Wraith JE. Miglustat for treatment of Niemann-Pick C disease: a randomised controlled study. Lancet Neurol. 2007 Sep;6(9):765-72. doi: 10.1016/S1474-4422(07)70194-1.
- Patterson MC, Hendriksz CJ, Walterfang M, Sedel F, Vanier MT, Wijburg F; NP-C Guidelines Working Group. Recommendations for the diagnosis and management of Niemann-Pick disease type C: an update. Mol Genet Metab. 2012 Jul;106(3):330-44. doi: 10.1016/j.ymgme.2012.03.012. Epub 2012 May 8.
- Ramirez CM, Liu B, Aqul A, Taylor AM, Repa JJ, Turley SD, Dietschy JM. Quantitative role of LAL, NPC2, and NPC1 in lysosomal cholesterol processing defined by genetic and pharmacological manipulations. J Lipid Res. 2011 Apr;52(4):688-98. doi: 10.1194/jlr.M013789. Epub 2011 Feb 2.
- Schicks J, Muller Vom Hagen J, Bauer P, Beck-Wodl S, Biskup S, Krageloh-Mann I, Schols L, Synofzik M. Niemann-Pick type C is frequent in adult ataxia with cognitive decline and vertical gaze palsy. Neurology. 2013 Mar 19;80(12):1169-70. doi: 10.1212/WNL.0b013e31828869f9. Epub 2013 Feb 20. No abstract available.
- Schmitz-Hubsch T, du Montcel ST, Baliko L, Berciano J, Boesch S, Depondt C, Giunti P, Globas C, Infante J, Kang JS, Kremer B, Mariotti C, Melegh B, Pandolfo M, Rakowicz M, Ribai P, Rola R, Schols L, Szymanski S, van de Warrenburg BP, Durr A, Klockgether T, Fancellu R. Scale for the assessment and rating of ataxia: development of a new clinical scale. Neurology. 2006 Jun 13;66(11):1717-20. doi: 10.1212/01.wnl.0000219042.60538.92. Erratum In: Neurology. 2006 Jul 25;67(2):299. Fancellu, Roberto [added].
- Sevin M, Lesca G, Baumann N, Millat G, Lyon-Caen O, Vanier MT, Sedel F. The adult form of Niemann-Pick disease type C. Brain. 2007 Jan;130(Pt 1):120-33. doi: 10.1093/brain/awl260. Epub 2006 Sep 26.
- te Vruchte D, Speak AO, Wallom KL, Al Eisa N, Smith DA, Hendriksz CJ, Simmons L, Lachmann RH, Cousins A, Hartung R, Mengel E, Runz H, Beck M, Amraoui Y, Imrie J, Jacklin E, Riddick K, Yanjanin NM, Wassif CA, Rolfs A, Rimmele F, Wright N, Taylor C, Ramaswami U, Cox TM, Hastings C, Jiang X, Sidhu R, Ory DS, Arias B, Jeyakumar M, Sillence DJ, Wraith JE, Porter FD, Cortina-Borja M, Platt FM. Relative acidic compartment volume as a lysosomal storage disorder-associated biomarker. J Clin Invest. 2014 Mar;124(3):1320-8. doi: 10.1172/JCI72835.
- Trendelenburg G, Vanier MT, Maza S, Millat G, Bohner G, Munz DL, Zschenderlein R. Niemann-Pick type C disease in a 68-year-old patient. J Neurol Neurosurg Psychiatry. 2006 Aug;77(8):997-8. doi: 10.1136/jnnp.2005.086785. No abstract available.
- Vance JE. Dysregulation of cholesterol balance in the brain: contribution to neurodegenerative diseases. Dis Model Mech. 2012 Nov;5(6):746-55. doi: 10.1242/dmm.010124. Epub 2012 Oct 12.
- Vanier MT. Niemann-Pick disease type C. Orphanet J Rare Dis. 2010 Jun 3;5:16. doi: 10.1186/1750-1172-5-16.
- Vite CH, Bagel JH, Swain GP, Prociuk M, Sikora TU, Stein VM, O'Donnell P, Ruane T, Ward S, Crooks A, Li S, Mauldin E, Stellar S, De Meulder M, Kao ML, Ory DS, Davidson C, Vanier MT, Walkley SU. Intracisternal cyclodextrin prevents cerebellar dysfunction and Purkinje cell death in feline Niemann-Pick type C1 disease. Sci Transl Med. 2015 Feb 25;7(276):276ra26. doi: 10.1126/scitranslmed.3010101.
- Welford RW, Garzotti M, Marques Lourenco C, Mengel E, Marquardt T, Reunert J, Amraoui Y, Kolb SA, Morand O, Groenen P. Plasma lysosphingomyelin demonstrates great potential as a diagnostic biomarker for Niemann-Pick disease type C in a retrospective study. PLoS One. 2014 Dec 5;9(12):e114669. doi: 10.1371/journal.pone.0114669. eCollection 2014.
- Hastings C, Liu B, Hurst B, Cox GF, Hrynkow S. Intravenous 2-hydroxypropyl-beta-cyclodextrin (Trappsol(R) Cyclo) demonstrates biological activity and impacts cholesterol metabolism in the central nervous system and peripheral tissues in adult subjects with Niemann-Pick Disease Type C1: Results of a phase 1 trial. Mol Genet Metab. 2022 Dec;137(4):309-319. doi: 10.1016/j.ymgme.2022.10.004. Epub 2022 Oct 17.
- Coussement W, Van Cauteren H, Vandenberghe J, et al. Toxicological profile of hydroxypropyl Beta-cyclodextrin (HP-Beta-CD) in laboratory animals. In: Minutes of the Fifth International Symposium on cyclodextrins; 28-30 March 1990; Paris, France: Editions de Santé; 1990 p. 522-4.
- Davidson CD, Ali NF, Micsenyi MC, Stephney G, Renault S, Dobrenis K, Ory DS, Vanier MT, Walkley SU. Chronic cyclodextrin treatment of murine Niemann-Pick C disease ameliorates neuronal cholesterol and glycosphingolipid storage and disease progression. PLoS One. 2009 Sep 11;4(9):e6951. doi: 10.1371/journal.pone.0006951.
- Dietschy JM, Turley SD. Control of cholesterol turnover in the mouse. J Biol Chem. 2002 Feb 8;277(6):3801-4. doi: 10.1074/jbc.R100057200. Epub 2001 Dec 3. No abstract available.
- Ferraioli G, Parekh P, Levitov AB, Filice C. Shear wave elastography for evaluation of liver fibrosis. J Ultrasound Med. 2014 Feb;33(2):197-203. doi: 10.7863/ultra.33.2.197.
- Pontikis CC, Davidson CD, Walkley SU, Platt FM, Begley DJ. Cyclodextrin alleviates neuronal storage of cholesterol in Niemann-Pick C disease without evidence of detectable blood-brain barrier permeability. J Inherit Metab Dis. 2013 May;36(3):491-8. doi: 10.1007/s10545-012-9583-x. Epub 2013 Feb 15.
- Tangemo C, Weber D, Theiss S, Mengel E, Runz H. Niemann-Pick Type C disease: characterizing lipid levels in patients with variant lysosomal cholesterol storage. J Lipid Res. 2011 Apr;52(4):813-25. doi: 10.1194/jlr.P013524. Epub 2011 Jan 17.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Mental Disorders
- Metabolic Diseases
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Lymphatic Diseases
- Neurologic Manifestations
- Neurobehavioral Manifestations
- Neurocognitive Disorders
- Genetic Diseases, Inborn
- Neurodegenerative Diseases
- TDP-43 Proteinopathies
- Proteostasis Deficiencies
- Metabolism, Inborn Errors
- Lysosomal Storage Diseases
- Lipid Metabolism Disorders
- Dementia
- Brain Diseases, Metabolic
- Brain Diseases, Metabolic, Inborn
- Language Disorders
- Communication Disorders
- Sphingolipidoses
- Lysosomal Storage Diseases, Nervous System
- Lipidoses
- Lipid Metabolism, Inborn Errors
- Speech Disorders
- Frontotemporal Lobar Degeneration
- Aphasia
- Histiocytosis, Non-Langerhans-Cell
- Histiocytosis
- Frontotemporal Dementia
- Aphasia, Primary Progressive
- Pick Disease of the Brain
- Niemann-Pick Diseases
- Niemann-Pick Disease, Type A
- Niemann-Pick Disease, Type C
- Molecular Mechanisms of Pharmacological Action
- Sequestering Agents
- Betadex
Other Study ID Numbers
- CTD-TCNPC-101
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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