The Relationship Between Neuropsychological Testing and MRI, PET and COBRE - Project 1: AIM 2 (GE-180)
NCT ID: NCT03702816
Last Updated: 2023-05-24
Study Results
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View full resultsBasic Information
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TERMINATED
PHASE2
24 participants
INTERVENTIONAL
2018-12-13
2019-09-29
Brief Summary
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Microglia play an important anti-inflammatory role, and produce a substance, mitochondrial translocator protein (TSPO), whose presence can be used as a marker of regional inflammation. GE180 is a newly developed PET ligand which binds to TSPO and hence can be used in imaging studies to analyze regional inflammation in living patients. In prior studies it has shown regional specificity in multiple sclerosis and brain injury. In the current study, the investigators will be using GE180 to analyze regional and global inflammation in the brains of patients with AD and PD at a single time point.
The results of the current study will provide enriched understanding of inflammation in these conditions, and potentially provide preliminary data to inform design of future interventional trials.
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Detailed Description
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Participants will undergo GE180 PET one time during the study. The approach to PET data collection and analysis will be similar to work done previously with an earlier generation ligand (Edison et al., 2008) and to other work with this tracer (Fan et al., 2016). Participants will complete ECGs and have their vitals taken prior to and immediately following injections. Briefly, the ligand will be injected, there will be a 90 minute uptake period, and scan acquisition will commence for 30 minutes, and will be collected in list mode and rebinned into 18 time frames post acquisition.
The total duration of the study visit will be around 4 hours, and the participants will receive $50 compensation for the visit.
Conditions
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Study Design
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NON_RANDOMIZED
PARALLEL
DIAGNOSTIC
NONE
Study Groups
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Alzheimer's Disease
Alzheimer's Disease
GE180 PET Scan
GE180 PET Scan
GE180 PET Scan
Parkinson's Disease
Parkinson's Disease
GE180 PET Scan
GE180 PET Scan
GE180 PET Scan
Control
Control Group
GE180 PET Scan
GE180 PET Scan
GE180 PET Scan
Mild Cognitive Impairment
Mild Cognitive Impairment
GE180 PET Scan
GE180 PET Scan
GE180 PET Scan
Interventions
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GE180 PET Scan
GE180 PET Scan
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
2. Aged 55 to 90
3. Available study partners
4. Willing and able to participate in longitudinal follow-up study
5. For MCI patients, fit criteria based in Movement Disorders Task Force or NIA
Exclusion Criteria
2. Unstable medical conditions
3. History of major psychiatric diseases
4. MRI evidence of infarction or other focal lesion or multiple lacunes
5. Clinically significant abnormalities in B12 or TSH
6. Identified as having a common polymorphism (rs6971) in the TSPO gene which has been shown to reduce binding affinity of tracers similar to GE180. This testing will be done as part of their CNTN participation.
55 Years
90 Years
ALL
Yes
Sponsors
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Aaron Ritter, MD
OTHER
Responsible Party
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Aaron Ritter, MD
Director of Clinical Trials
Principal Investigators
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Aaron R Ritter, MD
Role: PRINCIPAL_INVESTIGATOR
The Cleveland Clinic
Locations
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Lou Ruvo Center for Brain Health
Las Vegas, Nevada, United States
Countries
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References
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Maphis N, Xu G, Kokiko-Cochran ON, Jiang S, Cardona A, Ransohoff RM, Lamb BT, Bhaskar K. Reactive microglia drive tau pathology and contribute to the spreading of pathological tau in the brain. Brain. 2015 Jun;138(Pt 6):1738-55. doi: 10.1093/brain/awv081. Epub 2015 Mar 31.
Kim YS, Joh TH. Microglia, major player in the brain inflammation: their roles in the pathogenesis of Parkinson's disease. Exp Mol Med. 2006 Aug 31;38(4):333-47. doi: 10.1038/emm.2006.40.
Ji K, Miyauchi J, Tsirka SE. Microglia: an active player in the regulation of synaptic activity. Neural Plast. 2013;2013:627325. doi: 10.1155/2013/627325. Epub 2013 Nov 3.
Benavides J, Fage D, Carter C, Scatton B. Peripheral type benzodiazepine binding sites are a sensitive indirect index of neuronal damage. Brain Res. 1987 Sep 22;421(1-2):167-72. doi: 10.1016/0006-8993(87)91287-x.
Fan Z, Calsolaro V, Atkinson RA, Femminella GD, Waldman A, Buckley C, Trigg W, Brooks DJ, Hinz R, Edison P. Flutriciclamide (18F-GE180) PET: First-in-Human PET Study of Novel Third-Generation In Vivo Marker of Human Translocator Protein. J Nucl Med. 2016 Nov;57(11):1753-1759. doi: 10.2967/jnumed.115.169078. Epub 2016 Jun 3.
Chauveau F, Boutin H, Van Camp N, Dolle F, Tavitian B. Nuclear imaging of neuroinflammation: a comprehensive review of [11C]PK11195 challengers. Eur J Nucl Med Mol Imaging. 2008 Dec;35(12):2304-19. doi: 10.1007/s00259-008-0908-9. Epub 2008 Oct 1.
Boutin H, Murray K, Pradillo J, Maroy R, Smigova A, Gerhard A, Jones PA, Trigg W. 18F-GE-180: a novel TSPO radiotracer compared to 11C-R-PK11195 in a preclinical model of stroke. Eur J Nucl Med Mol Imaging. 2015 Mar;42(3):503-11. doi: 10.1007/s00259-014-2939-8. Epub 2014 Oct 29.
Liu B, Le KX, Park MA, Wang S, Belanger AP, Dubey S, Frost JL, Holton P, Reiser V, Jones PA, Trigg W, Di Carli MF, Lemere CA. In Vivo Detection of Age- and Disease-Related Increases in Neuroinflammation by 18F-GE180 TSPO MicroPET Imaging in Wild-Type and Alzheimer's Transgenic Mice. J Neurosci. 2015 Nov 25;35(47):15716-30. doi: 10.1523/JNEUROSCI.0996-15.2015.
Calsolaro V, Edison P. Neuroinflammation in Alzheimer's disease: Current evidence and future directions. Alzheimers Dement. 2016 Jun;12(6):719-32. doi: 10.1016/j.jalz.2016.02.010. Epub 2016 May 11.
Edison P, Archer HA, Gerhard A, Hinz R, Pavese N, Turkheimer FE, Hammers A, Tai YF, Fox N, Kennedy A, Rossor M, Brooks DJ. Microglia, amyloid, and cognition in Alzheimer's disease: An [11C](R)PK11195-PET and [11C]PIB-PET study. Neurobiol Dis. 2008 Dec;32(3):412-9. doi: 10.1016/j.nbd.2008.08.001. Epub 2008 Aug 15.
Owen DR, Yeo AJ, Gunn RN, Song K, Wadsworth G, Lewis A, Rhodes C, Pulford DJ, Bennacef I, Parker CA, StJean PL, Cardon LR, Mooser VE, Matthews PM, Rabiner EA, Rubio JP. An 18-kDa translocator protein (TSPO) polymorphism explains differences in binding affinity of the PET radioligand PBR28. J Cereb Blood Flow Metab. 2012 Jan;32(1):1-5. doi: 10.1038/jcbfm.2011.147. Epub 2011 Oct 19.
Yokokura M, Mori N, Yagi S, Yoshikawa E, Kikuchi M, Yoshihara Y, Wakuda T, Sugihara G, Takebayashi K, Suda S, Iwata Y, Ueki T, Tsuchiya KJ, Suzuki K, Nakamura K, Ouchi Y. In vivo changes in microglial activation and amyloid deposits in brain regions with hypometabolism in Alzheimer's disease. Eur J Nucl Med Mol Imaging. 2011 Feb;38(2):343-51. doi: 10.1007/s00259-010-1612-0. Epub 2010 Sep 16.
Dickens AM, Vainio S, Marjamaki P, Johansson J, Lehtiniemi P, Rokka J, Rinne J, Solin O, Haaparanta-Solin M, Jones PA, Trigg W, Anthony DC, Airas L. Detection of microglial activation in an acute model of neuroinflammation using PET and radiotracers 11C-(R)-PK11195 and 18F-GE-180. J Nucl Med. 2014 Mar;55(3):466-72. doi: 10.2967/jnumed.113.125625. Epub 2014 Feb 10.
Turkheimer FE, Rizzo G, Bloomfield PS, Howes O, Zanotti-Fregonara P, Bertoldo A, Veronese M. The methodology of TSPO imaging with positron emission tomography. Biochem Soc Trans. 2015 Aug;43(4):586-92. doi: 10.1042/BST20150058. Epub 2015 Aug 3.
Rizzo G, Veronese M, Tonietto M, Zanotti-Fregonara P, Turkheimer FE, Bertoldo A. Kinetic modeling without accounting for the vascular component impairs the quantification of [(11)C]PBR28 brain PET data. J Cereb Blood Flow Metab. 2014 Jun;34(6):1060-9. doi: 10.1038/jcbfm.2014.55. Epub 2014 Mar 26.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
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15-888
Identifier Type: -
Identifier Source: org_study_id
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