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Imaging Dopamine Function and Its Impact on Outcome After Traumatic Brain Injury (TBI)

Imaging Dopamine Function and Its Impact on Outcome After Traumatic Brain Injury (TBI)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01850290
Enrollment
18
Registered
2013-05-09
Start date
2013-05-31
Completion date
2016-03-31
Last updated
2018-02-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Traumatic Brain Injury

Keywords

TBI

Brief summary

This study will examine resting dopamine function as well as dopamine response in the brain as it interacts with medicines normally prescribed to subacute Traumatic Brain Injury (TBI) patients.

Interventions

None listed

Sponsors

University of Texas Southwestern Medical Center
CollaboratorOTHER
Baylor Research Institute
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* Non-penetrating TBI * Age between 18-50 years old * Admitted to a North Texas TBI Model Systems-affiliated rehabilitation facility within 16 weeks of injury * Rated at Rancho VI Los Amigos Levels of Cognitive Functioning Scale of less than or equal to Stage V at the time of enrollment * Disability Rating Scale total score \>/= 7

Exclusion criteria

* Central Nervous System disorder resulting in functional disability predating TBI * Documented diagnosis of disease processes impacted by the dopamine system (e.g., Parkinson's Disease, clinician diagnosed Attention Deficit Hyperactivity Disorder, substance abuse/dependence (excluding marijuana, alcohol, tobacco), or schizophrenia) * Pre-injury use of dopaminergic pharmaceuticals (i.e., methylphenidate, amantadine, or dopamine receptor blockers such as olanzapine or quetiapine) * Documented contraindication to use of methylphenidate including allergy * Uncontrolled epilepsy * Pregnant * Medical condition not compatible with use of Methylphenidate * Recent diagnosis or therapeutic study using radiopharmaceuticals * Contraindications to the use of Ioflupane * Allergic to Iodine

Design outcomes

Primary

MeasureTime frameDescription
Change in Disability Rating ScaleBaseline, 1 week, 2 weeks, 3 weeks, 4 weeksThe primary outcome measure will be the change in Disability Rating Scale over 4 weeks. The Disability Rating Scale is a commonly used and reliable instrument for monitoring minor changes occurring throughout the course of a patient's recovery (Rappaport et al., 1982).

Secondary

MeasureTime frame
John F Kennedy Coma Recovery Scale RevisedBaseline, 1 week, 2 weeks, 3 weeks, 4 weeks
Functional Independence Measure (FIM)Baseline, 1 week, 2 weeks, 3 weeks, 4 weeks
Functional Assessment Measure (FAM)Baseline, 1 week, 2 weeks, 3 weeks, 4 weeks
Orientation Log (O-Log)Baseline, 1 week, 2 weeks, 3 weeks, 4 weeks

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026