NCT04264273

Brief Summary

This study includes 35 PD patients who underwent submandibular gland needle biopsy. 25 neurologically healthy patients of the local otolaryngological clinic, in whom submandibular gland needle biopsy was performed due to a clinical indication, serve as controls.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Feb 2020

Geographic Reach
1 country

1 active site

Status
unknown

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

January 27, 2020

Completed
11 days until next milestone

Study Start

First participant enrolled

February 7, 2020

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 11, 2020

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2021

Completed
Last Updated

February 12, 2020

Status Verified

February 1, 2020

Enrollment Period

1.8 years

First QC Date

January 27, 2020

Last Update Submit

February 11, 2020

Conditions

Keywords

Alpha synuclein

Outcome Measures

Primary Outcomes (1)

  • Pathologically aggregated α-synuclein in the submandibular gland.

    The biopsy was taken with a biopsy needle (diameter 14 g) which was inserted under sonographic control into one of the both submandibular glands. By means of this biopsy method, a biopsy cylinder was obtained from one submandibular gland. The biopsy cylinder which was immediately transported to the Department of Neuropathology. The whole biopsy cylinder was histopathologically investigated for pathologically aggregated alpha-synuclein. Two histopathological results are possible: presence of at least one pathologically aggregated alpha-synuclein in the obtained biopsy cylinder (positive result) or absence of any pathologically aggregated alpha-synuclein in the obtained biopsy cylinder (negative result).

    only baseline, no further investigations.

Study Arms (2)

Participants with Parkinson´s disease.

Participants who fulfilled the diagnostic criteria of Parkinson´s disease.

Participants without a neurological disease

25 neurologically healthy patients of the local otolaryngological clinic, in whom submandibular gland needle biopsy was performed due to a clinical indication.

Eligibility Criteria

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

Unselected cohort of PD patients

You may not qualify if:

  • Missing consent to participation in the study
  • Pregnancy
  • Indigestibility against local anesthetic
  • Increased risk of bleeding
  • Therapy with an anticoagulant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Neurology, Saarland University

Homburg/Saar, Saarland, D-66421, Germany

RECRUITING

Related Publications (5)

  • Adler CH, Dugger BN, Hentz JG, Hinni ML, Lott DG, Driver-Dunckley E, Mehta S, Serrano G, Sue LI, Duffy A, Intorcia A, Filon J, Pullen J, Walker DG, Beach TG. Peripheral Synucleinopathy in Early Parkinson's Disease: Submandibular Gland Needle Biopsy Findings. Mov Disord. 2016 Feb;31(2):250-6. doi: 10.1002/mds.26476. Epub 2016 Jan 22.

    PMID: 26799362BACKGROUND
  • Beach TG, Adler CH, Dugger BN, Serrano G, Hidalgo J, Henry-Watson J, Shill HA, Sue LI, Sabbagh MN, Akiyama H; Arizona Parkinson's Disease Consortium. Submandibular gland biopsy for the diagnosis of Parkinson disease. J Neuropathol Exp Neurol. 2013 Feb;72(2):130-6. doi: 10.1097/NEN.0b013e3182805c72.

    PMID: 23334596BACKGROUND
  • Del Tredici K, Hawkes CH, Ghebremedhin E, Braak H. Lewy pathology in the submandibular gland of individuals with incidental Lewy body disease and sporadic Parkinson's disease. Acta Neuropathol. 2010 Jun;119(6):703-13. doi: 10.1007/s00401-010-0665-2. Epub 2010 Mar 14.

    PMID: 20229352BACKGROUND
  • Orimo S, Uchihara T, Nakamura A, Mori F, Kakita A, Wakabayashi K, Takahashi H. Axonal alpha-synuclein aggregates herald centripetal degeneration of cardiac sympathetic nerve in Parkinson's disease. Brain. 2008 Mar;131(Pt 3):642-50. doi: 10.1093/brain/awm302. Epub 2007 Dec 13.

    PMID: 18079166BACKGROUND
  • Spillantini MG, Schmidt ML, Lee VM, Trojanowski JQ, Jakes R, Goedert M. Alpha-synuclein in Lewy bodies. Nature. 1997 Aug 28;388(6645):839-40. doi: 10.1038/42166. No abstract available.

    PMID: 9278044BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

Tissue of the submandibular gland which is obtained by means of needle biopsy from the submandibular gland

MeSH Terms

Conditions

Parkinson DiseaseParkinson Disease 4, Autosomal Dominant Lewy Body

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • Jörg Spiegel, MD

    Department of Neurology, Saarland University, D-66421 Homburg/Saar, Germany

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Jörg Spiegel, MD

CONTACT

Walter Schulz-Schaeffer, MD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant medical director

Study Record Dates

First Submitted

January 27, 2020

First Posted

February 11, 2020

Study Start

February 7, 2020

Primary Completion

December 1, 2021

Study Completion

December 1, 2021

Last Updated

February 12, 2020

Record last verified: 2020-02

Locations