NCT04266457

Brief Summary

We hypothesise that a real-time quaking induced conversion assay for the detection of pathological alpha-synuclein (α -syn RTQuIC) can be used to differentiate between cases of idiopathic REM-sleep behaviour disorder (RBD) and RBD that is symptomatic of prodromal α-synucleinopathies.

Trial Health

30
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Sep 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 10, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

February 12, 2020

Completed
1.6 years until next milestone

Study Start

First participant enrolled

September 1, 2021

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2022

Completed
Last Updated

October 18, 2022

Status Verified

May 1, 2021

Enrollment Period

1 year

First QC Date

February 10, 2020

Last Update Submit

October 17, 2022

Conditions

Keywords

REMBDREM Behavioural Disorderprodromal α-synucleinopathies

Outcome Measures

Primary Outcomes (1)

  • Presence of pathological α-synuclein within the cerebrospinal fluid (CSF)

    The primary outcome measure will be either a positive/negative (binary) result from the α-syn RT-QuIC assay. A positive output confirms presence of pathological α-synuclein within the CSF.

    0-24 months after sample taken

Interventions

No Intervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients diagnosed with REM Sleep Behavioural Disorder using ICSD-3 criteria

You may qualify if:

  • Patients diagnosed with Rapid Eye Movement Behaviour Disorder (RBD) using the International Classification of Sleep Disorders version 3 (ICSD-3) criteria \[18\] - Patients aged 18 years and over - Patient able to give written informed consent

You may not qualify if:

  • RBD secondary to medication or withdrawal state. - \<18 years old - Inability to give written informed consent - Contraindication to lumbar puncture procedure (e.g. patients taking Warfarin)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The University of Edinburgh

Edinburgh, Lothian, EH16 4TJ, United Kingdom

Location

Related Publications (24)

  • Postuma RB, Gagnon JF, Bertrand JA, Genier Marchand D, Montplaisir JY. Parkinson risk in idiopathic REM sleep behavior disorder: preparing for neuroprotective trials. Neurology. 2015 Mar 17;84(11):1104-13. doi: 10.1212/WNL.0000000000001364. Epub 2015 Feb 13.

    PMID: 25681454BACKGROUND
  • Iranzo A, Tolosa E, Gelpi E, Molinuevo JL, Valldeoriola F, Serradell M, Sanchez-Valle R, Vilaseca I, Lomena F, Vilas D, Llado A, Gaig C, Santamaria J. Neurodegenerative disease status and post-mortem pathology in idiopathic rapid-eye-movement sleep behaviour disorder: an observational cohort study. Lancet Neurol. 2013 May;12(5):443-53. doi: 10.1016/S1474-4422(13)70056-5. Epub 2013 Apr 3.

    PMID: 23562390BACKGROUND
  • Boeve BF, Silber MH, Ferman TJ, Lin SC, Benarroch EE, Schmeichel AM, Ahlskog JE, Caselli RJ, Jacobson S, Sabbagh M, Adler C, Woodruff B, Beach TG, Iranzo A, Gelpi E, Santamaria J, Tolosa E, Singer C, Mash DC, Luca C, Arnulf I, Duyckaerts C, Schenck CH, Mahowald MW, Dauvilliers Y, Graff-Radford NR, Wszolek ZK, Parisi JE, Dugger B, Murray ME, Dickson DW. Clinicopathologic correlations in 172 cases of rapid eye movement sleep behavior disorder with or without a coexisting neurologic disorder. Sleep Med. 2013 Aug;14(8):754-62. doi: 10.1016/j.sleep.2012.10.015. Epub 2013 Mar 7.

    PMID: 23474058BACKGROUND
  • Schenck CH, Boeve BF, Mahowald MW. Delayed emergence of a parkinsonian disorder or dementia in 81% of older men initially diagnosed with idiopathic rapid eye movement sleep behavior disorder: a 16-year update on a previously reported series. Sleep Med. 2013 Aug;14(8):744-8. doi: 10.1016/j.sleep.2012.10.009. Epub 2013 Jan 22.

    PMID: 23347909BACKGROUND
  • Plomhause L, Dujardin K, Duhamel A, Delliaux M, Derambure P, Defebvre L, Monaca Charley C. Rapid eye movement sleep behavior disorder in treatment-naive Parkinson disease patients. Sleep Med. 2013 Oct;14(10):1035-7. doi: 10.1016/j.sleep.2013.04.018. Epub 2013 Jul 25.

    PMID: 23890957BACKGROUND
  • Braak H, Del Tredici K, Rub U, de Vos RA, Jansen Steur EN, Braak E. Staging of brain pathology related to sporadic Parkinson's disease. Neurobiol Aging. 2003 Mar-Apr;24(2):197-211. doi: 10.1016/s0197-4580(02)00065-9.

    PMID: 12498954BACKGROUND
  • Kim YK, Yoon IY, Kim JM, Jeong SH, Kim KW, Shin YK, Kim BS, Kim SE. The implication of nigrostriatal dopaminergic degeneration in the pathogenesis of REM sleep behavior disorder. Eur J Neurol. 2010 Mar;17(3):487-92. doi: 10.1111/j.1468-1331.2009.02854.x. Epub 2009 Nov 24.

    PMID: 19968708BACKGROUND
  • Barber TR, Lawton M, Rolinski M, Evetts S, Baig F, Ruffmann C, Gornall A, Klein JC, Lo C, Dennis G, Bandmann O, Quinnell T, Zaiwalla Z, Ben-Shlomo Y, Hu MTM. Prodromal Parkinsonism and Neurodegenerative Risk Stratification in REM Sleep Behavior Disorder. Sleep. 2017 Aug 1;40(8):zsx071. doi: 10.1093/sleep/zsx071.

    PMID: 28472425BACKGROUND
  • Puschmann A, Bhidayasiri R, Weiner WJ. Synucleinopathies from bench to bedside. Parkinsonism Relat Disord. 2012 Jan;18 Suppl 1:S24-7. doi: 10.1016/S1353-8020(11)70010-4.

    PMID: 22166445BACKGROUND
  • Peelaerts W, Baekelandt V. a-Synuclein strains and the variable pathologies of synucleinopathies. J Neurochem. 2016 Oct;139 Suppl 1:256-274. doi: 10.1111/jnc.13595. Epub 2016 Mar 30.

    PMID: 26924014BACKGROUND
  • Tyson T, Steiner JA, Brundin P. Sorting out release, uptake and processing of alpha-synuclein during prion-like spread of pathology. J Neurochem. 2016 Oct;139 Suppl 1(Suppl 1):275-289. doi: 10.1111/jnc.13449. Epub 2016 Feb 10.

    PMID: 26617280BACKGROUND
  • El-Agnaf OM, Salem SA, Paleologou KE, Curran MD, Gibson MJ, Court JA, Schlossmacher MG, Allsop D. Detection of oligomeric forms of alpha-synuclein protein in human plasma as a potential biomarker for Parkinson's disease. FASEB J. 2006 Mar;20(3):419-25. doi: 10.1096/fj.03-1449com.

    PMID: 16507759BACKGROUND
  • Tinsley RB, Kotschet K, Modesto D, Ng H, Wang Y, Nagley P, Shaw G, Horne MK. Sensitive and specific detection of alpha-synuclein in human plasma. J Neurosci Res. 2010 Sep;88(12):2693-700. doi: 10.1002/jnr.22417.

    PMID: 20648655BACKGROUND
  • Foulds PG, Mitchell JD, Parker A, Turner R, Green G, Diggle P, Hasegawa M, Taylor M, Mann D, Allsop D. Phosphorylated alpha-synuclein can be detected in blood plasma and is potentially a useful biomarker for Parkinson's disease. FASEB J. 2011 Dec;25(12):4127-37. doi: 10.1096/fj.10-179192. Epub 2011 Aug 24.

    PMID: 21865317BACKGROUND
  • Doppler K, Jentschke HM, Schulmeyer L, Vadasz D, Janzen A, Luster M, Hoffken H, Mayer G, Brumberg J, Booij J, Musacchio T, Klebe S, Sittig-Wiegand E, Volkmann J, Sommer C, Oertel WH. Dermal phospho-alpha-synuclein deposits confirm REM sleep behaviour disorder as prodromal Parkinson's disease. Acta Neuropathol. 2017 Apr;133(4):535-545. doi: 10.1007/s00401-017-1684-z. Epub 2017 Feb 8.

    PMID: 28180961BACKGROUND
  • Fairfoul G, McGuire LI, Pal S, Ironside JW, Neumann J, Christie S, Joachim C, Esiri M, Evetts SG, Rolinski M, Baig F, Ruffmann C, Wade-Martins R, Hu MT, Parkkinen L, Green AJ. Alpha-synuclein RT-QuIC in the CSF of patients with alpha-synucleinopathies. Ann Clin Transl Neurol. 2016 Aug 28;3(10):812-818. doi: 10.1002/acn3.338. eCollection 2016 Oct.

    PMID: 27752516BACKGROUND
  • Li SX, Wing YK, Lam SP, Zhang J, Yu MW, Ho CK, Tsoh J, Mok V. Validation of a new REM sleep behavior disorder questionnaire (RBDQ-HK). Sleep Med. 2010 Jan;11(1):43-8. doi: 10.1016/j.sleep.2009.06.008. Epub 2009 Nov 30.

    PMID: 19945912BACKGROUND
  • Johns MW. A new method for measuring daytime sleepiness: the Epworth sleepiness scale. Sleep. 1991 Dec;14(6):540-5. doi: 10.1093/sleep/14.6.540.

    PMID: 1798888BACKGROUND
  • Holmes TH, Rahe RH. The Social Readjustment Rating Scale. J Psychosom Res. 1967 Aug;11(2):213-8. doi: 10.1016/0022-3999(67)90010-4. No abstract available.

    PMID: 6059863BACKGROUND
  • Goetz CG, Tilley BC, Shaftman SR, Stebbins GT, Fahn S, Martinez-Martin P, Poewe W, Sampaio C, Stern MB, Dodel R, Dubois B, Holloway R, Jankovic J, Kulisevsky J, Lang AE, Lees A, Leurgans S, LeWitt PA, Nyenhuis D, Olanow CW, Rascol O, Schrag A, Teresi JA, van Hilten JJ, LaPelle N; Movement Disorder Society UPDRS Revision Task Force. Movement Disorder Society-sponsored revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS): scale presentation and clinimetric testing results. Mov Disord. 2008 Nov 15;23(15):2129-70. doi: 10.1002/mds.22340.

    PMID: 19025984BACKGROUND
  • White C, Hill EA, Morrison I, Riha RL. Diagnostic delay in REM sleep behavior disorder (RBD). J Clin Sleep Med. 2012 Apr 15;8(2):133-6. doi: 10.5664/jcsm.1762.

    PMID: 22505857BACKGROUND
  • Alberio T, Bossi AM, Milli A, Parma E, Gariboldi MB, Tosi G, Lopiano L, Fasano M. Proteomic analysis of dopamine and alpha-synuclein interplay in a cellular model of Parkinson's disease pathogenesis. FEBS J. 2010 Dec;277(23):4909-19. doi: 10.1111/j.1742-4658.2010.07896.x. Epub 2010 Oct 26.

    PMID: 20977677BACKGROUND
  • Venda LL, Cragg SJ, Buchman VL, Wade-Martins R. alpha-Synuclein and dopamine at the crossroads of Parkinson's disease. Trends Neurosci. 2010 Dec;33(12):559-68. doi: 10.1016/j.tins.2010.09.004. Epub 2010 Oct 18.

    PMID: 20961626BACKGROUND
  • Taylor TN, Potgieter D, Anwar S, Senior SL, Janezic S, Threlfell S, Ryan B, Parkkinen L, Deltheil T, Cioroch M, Livieratos A, Oliver PL, Jennings KA, Davies KE, Ansorge O, Bannerman DM, Cragg SJ, Wade-Martins R. Region-specific deficits in dopamine, but not norepinephrine, signaling in a novel A30P alpha-synuclein BAC transgenic mouse. Neurobiol Dis. 2014 Feb;62:193-207. doi: 10.1016/j.nbd.2013.10.005. Epub 2013 Oct 10.

    PMID: 24121116BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

5ml ceberospinal fluid, 9ml blood

MeSH Terms

Conditions

REM Sleep Behavior DisorderParkinson Disease

Condition Hierarchy (Ancestors)

REM Sleep ParasomniasParasomniasSleep Wake DisordersNervous System DiseasesMental DisordersParkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • Renata L Riha, MD

    University of Edinburgh

    PRINCIPAL INVESTIGATOR
0

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 10, 2020

First Posted

February 12, 2020

Study Start

September 1, 2021

Primary Completion

September 1, 2022

Study Completion

September 1, 2022

Last Updated

October 18, 2022

Record last verified: 2021-05

Locations