NCT03775447

Brief Summary

The goal of this study is to optimize pre-analytical cerebrospinal fluid (CSF) extracellular vesicle isolation protocols for increasing the detection of LRRK2 activity in human CSF

Trial Health

87
On Track

Trial Health Score

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

Enrollment
38

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2019

Shorter than P25 for all trials

Geographic Reach
1 country

3 active sites

Status
completed

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

November 20, 2018

Completed
24 days until next milestone

First Posted

Study publicly available on registry

December 14, 2018

Completed
4 months until next milestone

Study Start

First participant enrolled

April 23, 2019

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 18, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 18, 2019

Completed
Last Updated

September 8, 2021

Status Verified

August 1, 2021

Enrollment Period

8 months

First QC Date

November 20, 2018

Last Update Submit

August 31, 2021

Conditions

Keywords

Parkinson's DiseaseBiomarkerLRRK2CSF

Outcome Measures

Primary Outcomes (1)

  • degree of LRRK2 enrichment achieved. The measure will vary depending on the method of LRRK2 enrichment used

    For methods involving immunoprecipitation: Increase in peptide spectral matches on mass spectrometry For methods amenable to antibody-based detection: increase in LRRK2 intensity on Western blotting (arbitrary units).

    1 year

Secondary Outcomes (7)

  • Power analysis to guide future research

    1 year

  • Time from IRB submission to approval by central IRB

    3 months

  • Time from central IRB approval to site approval

    3 months

  • Time from site selection to contract full execution

    4 months

  • Completion of Recruitment

    6 months

  • +2 more secondary outcomes

Study Arms (2)

Parkinson's Disease Patients

* A diagnosis of Parkinson's disease in the opinion of the enrolling investigator * Disease duration: any * Male or female age 18 years or older at time of PD diagnosis.

Procedure: Lumbar Puncture

Healthy Control (HC) Subjects

• Male or female age 18 years or older at Screening.

Procedure: Lumbar Puncture

Interventions

Lumbar Puncture for collection of Cerebrospinal Fluids

Also known as: Biofluid Samplings: Blood
Healthy Control (HC) SubjectsParkinson's Disease Patients

Eligibility Criteria

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

Approximately 36 subjects will be enrolled to participate in this study, a combination of Parkinson Disease (PD) (any stage) and Healthy Controls in no specified proportion.

You may qualify if:

  • Parkinson's Disease Patients:
  • A diagnosis of Parkinson's disease in the opinion of the enrolling investigator
  • Disease duration: any
  • Male or female age 18 years or older at time of PD diagnosis.
  • Healthy Controls:
  • Male or female age 18 years or older at Screening.

You may not qualify if:

  • Parkinson's Disease Patients:
  • Inability to provide informed consent
  • Current treatment with anticoagulants (e.g., coumadin, heparin) that might preclude safe completion of the lumbar puncture.
  • Condition that precludes the safe performance of routine lumbar puncture, such as prohibitive lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  • Participation in a blinded clinical trial of any kind or an unblinded trial of an investigational product that is not currently approved for use in humans.
  • Healthy Controls:
  • Inability to provide informed consent
  • Current treatment with anticoagulants (e.g., coumadin, heparin) that might preclude safe completion of the lumbar puncture.
  • Condition that precludes the safe performance of routine lumbar puncture, such as prohibitive lumbar spinal disease, bleeding diathesis, or clinically significant coagulopathy or thrombocytopenia.
  • Participation in a blinded clinical trial of any kind or an unblinded trial of an investigational product that is not currently approved for use in humans.
  • Currently pregnant (female participants)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Northwestern University

Chicago, Illinois, 60611, United States

Location

Oregon Health and Sciences University

Portland, Oregon, 97239, United States

Location

University of Pennsylvania

Philadelphia, Pennsylvania, 19107, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

Cerebro-Spinal Fluids

MeSH Terms

Conditions

Parkinson Disease

Interventions

Spinal Puncture

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

BiopsySpecimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisDiagnostic Techniques, NeurologicalPuncturesTherapeuticsSurgical Procedures, OperativeInvestigative Techniques

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Neurologist at Toronto Western Hospital Movement Disorders Centre

Study Record Dates

First Submitted

November 20, 2018

First Posted

December 14, 2018

Study Start

April 23, 2019

Primary Completion

December 18, 2019

Study Completion

December 18, 2019

Last Updated

September 8, 2021

Record last verified: 2021-08

Data Sharing

IPD Sharing
Will not share

Locations