NCT00254007

Brief Summary

Problem: Depressive symptoms are a common mental health problem following traumatic brain injury (TBI), occurring in up to 87% of patients. Depression following TBI has important consequences including poor functioning, lack of ability to return to work and family activities and prolonged TBI symptoms. The reason depression develops in some patients following TBI is unknown, making treatment difficult. One type of brain protein that shows genetic differences between people is called the serotonin transporter. People can be divided by whether or not they have a short protein (S allele) or a long protein (L allele) which influences the amount of serotonin transporter. Serotonin is a key brain chemical in depression in many mental/psychiatric illnesses. We think that the genetic differences in the serotonin transporter, that may not make a difference before TBI, may become important after TBI due to the nature of these injuries. Methods: A consecutive sample of 200 patients attending a TBI clinic who have sustained a mild-to-moderate TBI (American Congress of Rehabilitation Medicine criteria) within the last 2 months will be assessed for the presence of major depression (standard criteria, standardized interview). In phase I, blood samples from patients with mild-to-moderate TBI with depression and without depression will be checked for the presence of the 5-HTTPR genetic difference. This will allow us to study if the S allele is more likely in TBI patients with depression. In phase II, the patients with depression will be treated with the SSRI citalopram for 6 weeks. At 6 weeks, or upon discontinuation of citalopram, depression will be assessed again. This will allow us to study if depressed patients with the S allele respond more poorly to treatment. Persons assessing depression after treatment will not know the genetic makeup of each patient. Results Expected: If the serotonin transporter genetic difference confers susceptibility to depression following TBI, this will provide important information on what causes depression following TBI and document a risk factor for depression previously unstudied in this population. Also, as SSRI antidepressants are used to treat depression in TBI, this study may identify a subgroup of TBI patients in whom different medications should be given or additional medications are required.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
200

participants targeted

Target at P75+ for phase_4 depression

Timeline
Completed

Started Jul 2003

Longer than P75 for phase_4 depression

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

Study Start

First participant enrolled

July 1, 2003

Completed
2.4 years until next milestone

First Submitted

Initial submission to the registry

November 10, 2005

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 15, 2005

Completed
16 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2005

Completed
4.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2010

Completed
Last Updated

April 28, 2017

Status Verified

April 1, 2017

Enrollment Period

2.4 years

First QC Date

November 10, 2005

Last Update Submit

April 26, 2017

Conditions

Keywords

depressiontraumatic brain injuryserotonin transportergenetic polymorphismscitalopram

Outcome Measures

Primary Outcomes (1)

  • - Hamilton Depression Rating Scale (HAM-D)

    Baseline, 6 weeks and 10 weeks (if applicable)

Secondary Outcomes (1)

  • Beck Depression Inventory (BDI), Rivermead Head Injury Follow-up Questionnaire (RHFQ), General Health Questionnaire (GHQ), Rivermead Post Concussion Disorder Questionnaire (RPDQ)

    Baseline, 6 weeks and 10 weeks (if applicable)

Interventions

20(1 tablet)-50(2 1/2 tablets) mg/day for a period of 6 or 10 weeks

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age \>18 years
  • gender: male or female
  • TBI within the last two months
  • mild to moderate TBI
  • written, informed consent
  • depressed group only: diagnosis of major depressive episode using the depression module of the Structured Clinical Interview for the DSM-IV (SCID-IV)

You may not qualify if:

  • prior TBI or other focal brain disease (stroke, tumor)
  • significant acute medical illness, including: drug overdose, severely disturbed liver, kidney, lung, or heart function, anemia, hypothyroidism, uncontrolled diabetes, Parkinson's disease, Huntington's chorea, progressive supranuclear paralysis, brain tumor, subdural hematoma, multiple sclerosis
  • a brain CT scan revealing focal lesions that could not be interpreted as consistent with a TBI
  • depression group only: contraindications to receiving treatment with citalopram

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sunnybrook Health Sciences Centre

Toronto, Ontario, M4N 3M5, Canada

Location

Related Publications (1)

  • Chan F, Lanctot KL, Feinstein A, Herrmann N, Strauss J, Sicard T, Kennedy JL, McCullagh S, Rapoport MJ. The serotonin transporter polymorphisms and major depression following traumatic brain injury. Brain Inj. 2008 Jun;22(6):471-9. doi: 10.1080/02699050802084886.

MeSH Terms

Conditions

DepressionBrain Injuries, Traumatic

Interventions

Citalopram

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorBrain InjuriesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesCraniocerebral TraumaTrauma, Nervous SystemWounds and Injuries

Intervention Hierarchy (Ancestors)

PropylaminesAminesOrganic ChemicalsNitrilesBenzofuransHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic Compounds

Study Officials

  • Krista L Lanctot, PhD

    Sunnybrook Health Sciences Centre

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER

Study Record Dates

First Submitted

November 10, 2005

First Posted

November 15, 2005

Study Start

July 1, 2003

Primary Completion

December 1, 2005

Study Completion

May 1, 2010

Last Updated

April 28, 2017

Record last verified: 2017-04

Locations