A Pilot of the Feasibility of Using the Iron-Chelator Deferiprone on Mild Cognitive Impairment
NCT ID: NCT02878538
Last Updated: 2018-02-06
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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WITHDRAWN
EARLY_PHASE1
INTERVENTIONAL
2018-01-31
2023-04-30
Brief Summary
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Detailed Description
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Conditions
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Study Design
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NON_RANDOMIZED
CROSSOVER
OTHER
SINGLE
Study Groups
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deferiprone
Deferiprone will be administered three times a day (25mg/kg). Total dose per day will depend on participants' body weight for one, three month block.
Deferiprone
Subjects will then begin an experimental No1 design: placebo-deferiprone-placebo. Study drug will be administered in three 3 month blocks. All subjects will receive 30 days of active study drug. The placebo-deferiprone contrast compares placebo to active drug initiation. The deferiprone-placebo contrast tests active drug withdrawal. All will be given placebo in months 1-3, and 6-12. This will allow the investigators to examine active drug exposure on d score up to one year and prospective time to MCI conversion. Dosing: Participants will be treated 25 mg/kg po tid (75mg /kg /d total) The dose will be rounded by the prescriber to the nearest 250 mg (half-tablet).
Placebo Phase
Placebo tablets with inactive substance will be used. Total number of placebo tablets will be equivalent to the active tablets administered depending on participants' body weight for two, three month blocks.
Placebo phase
Placebo tablets with inactive substance will be provided to subjects for two, 3 month blocks during the study.
Interventions
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Deferiprone
Subjects will then begin an experimental No1 design: placebo-deferiprone-placebo. Study drug will be administered in three 3 month blocks. All subjects will receive 30 days of active study drug. The placebo-deferiprone contrast compares placebo to active drug initiation. The deferiprone-placebo contrast tests active drug withdrawal. All will be given placebo in months 1-3, and 6-12. This will allow the investigators to examine active drug exposure on d score up to one year and prospective time to MCI conversion. Dosing: Participants will be treated 25 mg/kg po tid (75mg /kg /d total) The dose will be rounded by the prescriber to the nearest 250 mg (half-tablet).
Placebo phase
Placebo tablets with inactive substance will be provided to subjects for two, 3 month blocks during the study.
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
2. TARCC diagnosis of "MCI" (any subtype);
3. Incident MCI or conversion to MCI from control in the two previous TARCC waves;
4. 65-80 yrs of age;
5. Non-institutionalized level of care;
6. Capacity to give informed consent
7. GDS (Geriatric Depression Screen) score (15 item) ≤ 6;
8. TARCC MMSE (Mini-Mental State Examination) ≥ 26 /30;
9. HIS (Hachinski Ischemic Scale) ≤ 05/15;
10. Most recent TARCC dEQ-score = 0 ± 0.25.
Exclusion Criteria
2. A self-reported diagnosis of "Major Depression" (treatment with "antidepressants" not exclusionary);
3. A history of psychosis, including visual hallucinations;
4. History or treatment for Parkinson's, or tremor, or Rapid Eye Movement (REM) behavior disorder;
5. History or treatment for atrial fibrillation;
6. Treatment for cancer in the last 5 years (exc. skin cancers);
7. Major surgery in the last year;
8. History of craniotomy;
9. Serum Ferritin \< 500mcg/ml, Hgb \< 14g/dl♂ /12g/dl♀,, HCT \< 45%♂ /40%♀, recent blood transfusion (last 5 years), FeSO4 supplementation, erythromycin therapy;
10. ANC (absolute neutrophil count) \< 500 cells/µL, platelet count \< 150 × 106 /ml;
11. Treatment with anti-convulsants, mood stabilizers, neuroleptics, opiates, muscle relaxants, systemic steroids, or AD-indicated agents.
65 Years
80 Years
ALL
No
Sponsors
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The University of Texas Health Science Center at San Antonio
OTHER
Responsible Party
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Principal Investigators
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Donald R Royall, MD
Role: PRINCIPAL_INVESTIGATOR
The University of Texas Health Science Center at San Antonio
Dean Kellogg, MD, PHD
Role: PRINCIPAL_INVESTIGATOR
The University of Texas Health Science Center at San Antonio
Locations
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University of Texas Health Science Center
San Antonio, Texas, United States
Countries
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References
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Becerril-Ortega J, Bordji K, Freret T, Rush T, Buisson A. Iron overload accelerates neuronal amyloid-beta production and cognitive impairment in transgenic mice model of Alzheimer's disease. Neurobiol Aging. 2014 Oct;35(10):2288-301. doi: 10.1016/j.neurobiolaging.2014.04.019. Epub 2014 May 1.
De Chiara G, Marcocci ME, Sgarbanti R, Civitelli L, Ripoli C, Piacentini R, Garaci E, Grassi C, Palamara AT. Infectious agents and neurodegeneration. Mol Neurobiol. 2012 Dec;46(3):614-38. doi: 10.1007/s12035-012-8320-7. Epub 2012 Aug 17.
Fine JM, Renner DB, Forsberg AC, Cameron RA, Galick BT, Le C, Conway PM, Stroebel BM, Frey WH 2nd, Hanson LR. Intranasal deferoxamine engages multiple pathways to decrease memory loss in the APP/PS1 model of amyloid accumulation. Neurosci Lett. 2015 Jan 1;584:362-7. doi: 10.1016/j.neulet.2014.11.013. Epub 2014 Nov 13.
Gavett BE, Vudy V, Jeffrey M, John SE, Gurnani AS, Adams JW. The delta latent dementia phenotype in the uniform data set: Cross-validation and extension. Neuropsychology. 2015 May;29(3):344-52. doi: 10.1037/neu0000128. Epub 2014 Aug 25.
Hughes CP, Berg L, Danziger WL, Coben LA, Martin RL. A new clinical scale for the staging of dementia. Br J Psychiatry. 1982 Jun;140:566-72. doi: 10.1192/bjp.140.6.566.
Nairz M, Schroll A, Sonnweber T, Weiss G. The struggle for iron - a metal at the host-pathogen interface. Cell Microbiol. 2010 Dec;12(12):1691-702. doi: 10.1111/j.1462-5822.2010.01529.x. Epub 2010 Oct 21.
Peters DG, Connor JR, Meadowcroft MD. The relationship between iron dyshomeostasis and amyloidogenesis in Alzheimer's disease: Two sides of the same coin. Neurobiol Dis. 2015 Sep;81:49-65. doi: 10.1016/j.nbd.2015.08.007. Epub 2015 Aug 22.
Royall DR, Palmer RF, Markides KS. Exportation and Validation of Latent Constructs for Dementia Case Finding in a Mexican American Population-based Cohort. J Gerontol B Psychol Sci Soc Sci. 2017 Oct 1;72(6):947-955. doi: 10.1093/geronb/gbw004.
Royall DR, Palmer RF; Texas Alzheimer's Research and Care. Validation of a latent construct for dementia case-finding in Mexican-Americans. J Alzheimers Dis. 2013;37(1):89-97. doi: 10.3233/JAD-130353.
Royall DR, Palmer RF. Ethnicity moderates dementia's biomarkers. J Alzheimers Dis. 2015;43(1):275-87. doi: 10.3233/JAD-140264.
Royall DR, Palmer RF. Thrombopoietin is associated with delta's intercept, and only in Non-Hispanic Whites. Alzheimers Dement (Amst). 2016 Feb 26;3:35-42. doi: 10.1016/j.dadm.2016.02.003. eCollection 2016.
Royall DR, Palmer RF, O'Bryant SE; Texas Alzheimer's Research and Care Consortium. Validation of a latent variable representing the dementing process. J Alzheimers Dis. 2012;30(3):639-49. doi: 10.3233/JAD-2012-120055.
Salkovic-Petrisic M, Knezovic A, Osmanovic-Barilar J, Smailovic U, Trkulja V, Riederer P, Amit T, Mandel S, Youdim MB. Multi-target iron-chelators improve memory loss in a rat model of sporadic Alzheimer's disease. Life Sci. 2015 Sep 1;136:108-19. doi: 10.1016/j.lfs.2015.06.026. Epub 2015 Jul 6.
Other Identifiers
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HSC20160395H
Identifier Type: OTHER
Identifier Source: secondary_id
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