Development of Imaging, Clinical and Biochemical Bio-Markers for Parkinson's Disease

We propose to build on preliminary data evaluating non-dopaminergic/non-motor clinical biomarkers to more fully assess these markers at the threshold of Parkinson disease (PD).

Development of reliable biomarkers for both dopaminergic and non-dopaminergic manifestations of Parkinson disease (PD) and related disorders may dramatically accelerate research on PD etiology, pathophysiology, and therapeutics. Biomarkers are broadly defined as characteristics that are objectively measured and evaluated as indicators of normal biological processes, pathogenic processes, or pharmacologic responses to a therapeutic intervention. Specific biomarkers may be useful at the onset of neurodegeneration, the onset of disease, and/or to mark disease progression.

Study Overview

• Status: Completed
• Conditions: Parkinson's Disease; Parkinsonian Syndrome
• Intervention / Treatment: Drug: [123I]β-CIT

Detailed Description

Two hundred patients who have undergone neurological evaluation by their general community neurologist and have a questionable diagnosis of PD will be recruited to participate in this study. Subjects will be referred by the neurologists to the Institute for Neurodegenerative Disorders (IND) in New Haven, CT.

All subjects will be clinically evaluated at IND by a two movement disorders experts. At the baseline visit all subjects will also undergo [123I]ß-CIT SPECT ANAM, voice acoustics, olfactory, Spiral and biochemical testing. Each movement disorders expert will make an initial clinical diagnosis at baseline and again within three months follow-up. At the three month visit one movement disorder expert will be provided the DAT imaging data and will review that data with the subjects and referral physician. The other movement disorders physician will remain blind to the imaging and all other biomarker data. The blinded movement disorders expert will provide a final clinical diagnosis at the 12 month follow-up visit, which will represent the 'gold standard' diagnosis in this study. Statistical analysis to determine the sensitivity and specificity of ANAM, voice acoustics, olfactory, Spiral and biochemical testing compared to [123I]ß-CIT SPECT, and the gold standard clinical diagnosis will be completed. All subjects with DAT deficit and 10% of those without DAT deficit will be asked to return for repeat evaluation at 24 months.

• Study Type: Interventional
• Enrollment (Actual): 225
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Connecticut
    • New Haven, Connecticut, United States, 06510
      • Institute for Neurodegenerative Disorders

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 22 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Older than 21
• Any parkinsonian symptoms
• Referral by community neurologist
• Parkinsonian symptoms for less than 2 years duration.
• Willingness to follow the study plan.

Exclusion Criteria:

• Pregnancy
• Significant medical disease including abnormalities on screening biochemical or hematological labs or abnormal electrocardiogram (ECG - tracing of the electrical activity of the heart)

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: [123I]β-CIT; To assess B-CIT and SPECT imaging

Drug: [123I]β-CIT; Single Photon Emission Computed Tomography SPECT imaging uses the single photon emissions from radioactive compounds that are (most commonly) injected into a patient and are metabolized by specific organs or body systems. SPECT imaging is performed by using a gamma camera to acquire multiple 2-D images (also called projections), from multiple angles. A computer is then used to apply a tomographic reconstruction algorithm to the multiple projections, yielding a 3-D dataset. This dataset may then be manipulated to show thin slices along any chosen axis of the body, similar to those obtained from other tomographic techniques, such as MRI, CT, and PET. The resulting SPECT images reflect body/organ function as opposed to specific anatomy of other imaging modalities such as CT or MRI.; Other Names: SPECT imaging

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Assess the sensitivity and specificity of olfaction, upper limb kinematic behavior, cognition, voice, metabolomic, proteomic and gene expression profiling in categorizing Parkinson Syndrome (PS) vs non-PS	Assess the sensitivity and specificity of olfaction, upper limb kinematic behavior, cognition, voice, metabolomic, proteomic and gene expression profiling in categorizing Parkinson Syndrome (PS) vs non-PS defined by >30% age expected loss of [123I]B-CIT SPECT uptake.	2 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Assess sensitivity and specificity of olfaction, upper limb kinematic behavior, cognition, voice, metabolomic, proteomic and gene expression profiling in categorizing PS vs non-PS	Assess sensitivity and specificity of olfaction, upper limb kinematic behavior, cognition, voice, metabolomic, proteomic and gene expression profiling in categorizing PS vs non-PSby clinical exam by a movement disorders expert (blinded to any imaging data) after 12 months of subject follow up.	2 years
Correlate progression of biomarker outcomes for olfaction, upper limb kinematic behavior, cognition, voice, metabolomic and gene expression profiling with progression of PS defined by % change from baseline in putamen [123I]ß-CIT SPECT uptake.		2 years

Collaborators and Investigators

• Sponsor: Institute for Neurodegenerative Disorders
• Collaborators: United States Department of Defense; Molecular NeuroImaging

Study record dates

Study Major Dates

• Study Start: January 1, 2006
• Primary Completion (Actual): January 1, 2010
• Study Completion (Actual): June 1, 2010

Study Registration Dates

• First Submitted: April 14, 2006
• First Submitted That Met QC Criteria: April 14, 2006
• First Posted (Estimate): April 18, 2006

Study Record Updates

• Last Update Posted (Estimate): May 9, 2014
• Last Update Submitted That Met QC Criteria: April 21, 2014
• Last Verified: April 1, 2014

More Information

Terms related to this study

• Keywords: Parkinson
• Additional Relevant MeSH Terms: Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Basal Ganglia Diseases; Movement Disorders; Synucleinopathies; Neurodegenerative Diseases; Parkinson Disease; Parkinsonian Disorders
• Other Study ID Numbers: Query 3C