NCT02046447

Brief Summary

The main purpose of this study is to investigate primary cervical dystonia as compared to healthy control subjects and DYT 1 dystonia as compared to healthy control subjects by examining cognitive measures, physical measures, and structural and functional magnetic resonance imaging (MRI). The secondary aim of this study is to investigate a specific drug therapy for primary cervical dystonia to develop a functional MRI (fMRI) research paradigm. The drug, trihexyphenidyl, is FDA approved to treat Parkinson's Disease and is commonly prescribed by physicians as a treatment for symptoms of primary cervical dystonia.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started May 2014

Typical duration for all trials

Geographic Reach
1 country

1 active site

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

January 23, 2014

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 27, 2014

Completed
3 months until next milestone

Study Start

First participant enrolled

May 1, 2014

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2017

Completed
Last Updated

December 22, 2017

Status Verified

December 1, 2017

Enrollment Period

1.6 years

First QC Date

January 23, 2014

Last Update Submit

December 20, 2017

Conditions

Keywords

dystoniacervical dystoniaDYT1DYT 1DYT-1Dystonia 1fMRIhealthytrihexyphenidylArtaneApo-TrihexParkinPacitaneBenzhexolTrihex

Outcome Measures

Primary Outcomes (2)

  • Change in cerebral blood flow based on blood-oxygen-level dependent (BOLD) contrast during a precision gripping task

    Participants will use their hand to squeeze an MRI compatible grip force transducer in the MRI unit. While producing force, the participants will observe the amount of force generated by viewing a visual feedback display.

    1 hour

  • Change in cerebral blood flow based on blood-oxygen-level dependent (BOLD) contrast during a precision gripping task after administration of trihexyphenidyl compared to change in BOLD contrast during a precision gripping task

    Subjects with primary cervical dystonia will repeat the primary outcome measure "Change in cerebral blood flow based on blood-oxygen-level dependent (BOLD) contrast during a precision gripping task" one hour after administration of 2mg trihexyphenidyl tablet.

    2 hours

Study Arms (4)

Primary Cervical Dystonia (Trihexyphenidyl)

These subjects will receive the following: 1) data about clinical movement disorder history, age, gender, height, weight, and other medical conditions; 2) clinical neurological examination; 3) tests assessing cognitive abilities including: the Montreal Cognitive Assessment, Stroop, Digit Span, and Brief Test of Attention (BTA); 4) measures of anxiety and depression: the Beck Depression Index (BDI II). Only participants aged 18+ will be given the BDI; and 5) Functional magnetic resonance imaging (fMRI) and structural MRI will be performed. After the above baseline testing these subjects will receive a dose of trihexyphenidyl 2 mg an hour prior to the second functional fMRI scan. The subjects will be done with the study after the second MRI scan has been completed.

Drug: Primary Cervical Dystonia (Trihexyphenidyl)

DYT 1 Dystonia (Healthy Control)

These subjects will receive the following: 1) data about clinical movement disorder history, age, gender, height, weight, and other medical conditions; 2) clinical neurological examination; 3) tests assessing cognitive abilities including: the Montreal Cognitive Assessment, Stroop, Digit Span, and Brief Test of Attention (BTA); 4) measures of anxiety and depression: the Beck Depression Index (BDI II). Only participants aged 18+ will be given the BDI; and 5) Functional magnetic resonance imaging (fMRI) and structural MRI will be performed.

Other: DYT 1 Dystonia (Healthy Control)

Primary Cervical Dystonia (Healthy Control)

These subjects will receive the following: 1) data about clinical movement disorder history, age, gender, height, weight, and other medical conditions; 2) clinical neurological examination; 3) tests assessing cognitive abilities including: the Montreal Cognitive Assessment, Stroop, Digit Span, and Brief Test of Attention (BTA); 4) measures of anxiety and depression: the Beck Depression Index (BDI II). Only participants aged 18+ will be given the BDI; and 5) Functional magnetic resonance imaging (fMRI) and structural MRI will be performed.

Other: Controls Primary Cervical Dystonia (Trihexyphenidyl)

DYT 1 Dystonia

These subjects will receive the following: 1) data about clinical movement disorder history, age, gender, height, weight, and other medical conditions; 2) clinical neurological examination; 3) tests assessing cognitive abilities including: the Montreal Cognitive Assessment, Stroop, Digit Span, and Brief Test of Attention (BTA); 4) measures of anxiety and depression: the Beck Depression Index (BDI II). Only participants aged 18+ will be given the BDI; 5) Functional magnetic resonance imaging (fMRI) and structural MRI will be performed; and 6) Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) to assess dystonia severity.

Other: DYT 1 Dystonia

Interventions

After the baseline testing these subjects will receive a dose of trihexyphenidyl 2 mg an hour prior to the second functional magnetic resonance imaging (fMRI) scan. This is to test the change in cerebral blood flow based on blood-oxygen-level dependent (BOLD) contrast during a precision gripping task after administration of trihexyphenidyl compared to change in BOLD contrast during a precision gripping task. The subjects will be done with the study after the second MRI scan has been completed.

Also known as: Artane, Apo-Trihex, Parkin, Pacitane, Benzhexol, Trihex, Trihexphenidyl
Primary Cervical Dystonia (Trihexyphenidyl)

These subjects will receive the following: 1) data about clinical movement disorder history, age, gender, height, weight, and other medical conditions; 2) clinical neurological examination; 3) tests assessing cognitive abilities including: the Montreal Cognitive Assessment, Stroop, Digit Span, and Brief Test of Attention (BTA); 4) measures of anxiety and depression: the Beck Depression Index (BDI II). Only participants aged 18+ will be given the BDI; and 5) Functional magnetic resonance imaging (fMRI) and structural MRI will be performed.

Primary Cervical Dystonia (Healthy Control)

These subjects will receive the following: 1) data about clinical movement disorder history, age, gender, height, weight, and other medical conditions; 2) clinical neurological examination; 3) tests assessing cognitive abilities including: the Montreal Cognitive Assessment, Stroop, Digit Span, and Brief Test of Attention (BTA); 4) measures of anxiety and depression: the Beck Depression Index (BDI II). Only participants aged 18+ will be given the BDI; and 5) Functional magnetic resonance imaging (fMRI) and structural MRI will be performed.

DYT 1 Dystonia (Healthy Control)

These subjects will receive the following: 1) data about clinical movement disorder history, age, gender, height, weight, and other medical conditions; 2) clinical neurological examination; 3) tests assessing cognitive abilities including: the Montreal Cognitive Assessment, Stroop, Digit Span, and Brief Test of Attention (BTA); 4) measures of anxiety and depression: the Beck Depression Index (BDI II). Only participants aged 18+ will be given the BDI; and 5) Functional magnetic resonance imaging (fMRI) and structural MRI will be performed.

DYT 1 Dystonia

Eligibility Criteria

Age7 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Qualifying candidates with a diagnosis of DYT 1 dystonia will be identified and invited to participate utilizing an IRB approved database and neurologists review.

You may qualify if:

  • Diagnosis of primary cervical dystonia and between the ages of 18-70, OR
  • Diagnosis of DYT 1 dystonia and between the ages of 7-50, OR
  • Healthy control and between the ages of 7-70

You may not qualify if:

  • Neurological impairment from: seizure disorders, stroke, hypertension, heart disease, diabetes, traumatic brain injury (TBI), drug abuse, nerve disorders, dementia, Parkinson's Disease, dementia
  • Not a candidate for magnetic resonance imaging (MRI)
  • Deep brain stimulation (DBS) surgery
  • Any implanted electrical device
  • Pregnant or planning pregnancy
  • Breastfeeding
  • Claustrophobia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Florida

Gainesville, Florida, 32607, United States

Location

Related Links

Biospecimen

Retention: SAMPLES WITH DNA

Blood

MeSH Terms

Conditions

Cervical Dystonia, PrimaryDystoniaTorticollisDystonia musculorum deformans type 1Dystonia Musculorum Deformans

Interventions

TrihexyphenidylUbiquitin-Protein Ligasestrihex

Condition Hierarchy (Ancestors)

DyskinesiasNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesDystonic DisordersMovement DisordersHeredodegenerative Disorders, Nervous SystemNeurodegenerative DiseasesGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

PiperidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsUbiquitin-Protein Ligase ComplexesLigasesEnzymesEnzymes and Coenzymes

Study Officials

  • David Vaillancourt, PhD

    University of Florida

    PRINCIPAL INVESTIGATOR
  • Michael Okun, MD

    University of Florida

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 23, 2014

First Posted

January 27, 2014

Study Start

May 1, 2014

Primary Completion

December 1, 2015

Study Completion

December 1, 2017

Last Updated

December 22, 2017

Record last verified: 2017-12

Locations