Efficacy of Psychotherapy for Depressed Parkinson's Disease Patients
Study Details
Study Description
Brief Summary
The primary aim of this randomized controlled trial is to determine the acute antidepressant efficacy of interpersonal psychotherapy (IPT) in depressed patients with Parkinson's Disease.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
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N/A |
Detailed Description
The primary aim of this study is to determine whether IPT is more efficacious than an intervention that controls for non-specific factors (i.e., supportive psychotherapy) in reducing depressive symptoms. A secondary aim is to determine whether IPT is better than supportive therapy in improving quality of life, interpersonal functioning, attachment patters, and motor symptoms, and whether treatment gains are durable at 6-months follow-up. An exploratory aim of the study is identify moderators and mediators of treatment outcome. Patients who meet study criteria will be randomly assigned to either 12 sessions of IPT or 12 sessions of supportive therapy. The primary efficacy measure (Hamilton Depression Rating Scale) will be administered at baseline, weeks 6 and 12, and at 6 months follow-up.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Experimental: Interpersonal Psychotherapy (IPT) Patients assigned to IPT will receive 12 sessions of individual therapy of approximately 50 minutes duration. Therapy will be manualized and slightly adapted to meet the needs of patients with Parkinson's Disease. Therapy focuses on one of four interpersonal events that are linked with onset or maintenance of depression (role transition, role disputes, unresolved grief, and interpersonal deficits). |
Behavioral: Interpersonal Psychotherapy
A 12-week intervention that focuses on resolving interpersonal stressors that are linked to the onset, maintenance or exacerbation of depressive symptoms
|
Active Comparator: Supportive Psychotherapy (SP) Patients assigned to SP will receive 12 sessions of individual therapy of approximately 50 minutes duration. SP strives to create a supportive therapeutic relationship by emphasizing non-specific therapeutic interactions and techniques. Therapy will be manualized, |
Behavioral: Supportive Psychotherapy
A 12-week intervention that focuses on non-specific factors that contribute to therapy outcome
|
Outcome Measures
Primary Outcome Measures
- Hamilton Depression Rating Scale (HAM-A) [Change from baseline to week 12 and 6-months follow-up]
17-item clinician rated scale that assesses severity of depressive symptoms
Secondary Outcome Measures
- Beck Depression Inventory (BDI) [Change from baseline to week 12 and 6-months follow-up]
The BDI is a self report measure of depressive symptoms
- Beck Anxiety Inventory (BAI) [Change from baseline to week 12 and 6-months follow-up]
The BAI is a self-report measure of anxiety symptoms
- Parkinson's Disease Questionnaire (PDQ-39) [Change from baseline to week 12 and 6-months follow-up]
Self-report questionnaire that assesses quality of life in patients with Parkinson's Disease
- Interpersonal Relationships Inventory (IPRI) [Change from baseline to week 12 and 6-months follow-up]
Self-report inventory that measures aspects of interpersonal relationships
- Experiences in Close Relationship Scale-Revised (ECR-R) [Change from baseline to week 12 and 6-months follow-up]
Self-report scale that assesses attachment style in adult relationships
- Movement Disorders Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) [Change from baseline to week 12 and 6-months follow-up]
Clinician rated scale that provides comprehensive coverage of motor symptoms in Parkinson's Disease
Eligibility Criteria
Criteria
Inclusion Criteria:
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Outpatients with idiopathic Parkinson's disease and between stages 1 and 3 in the modified Hohn & Yahr Clinical Staging Scale
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Diagnosis of a depressive disorder
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Score ≥ 12 on the 17-item Hamilton Depression Rating Scale
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Living independently
Exclusion Criteria:
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History of bipolar disorder or psychotic symptoms (other than drug induced)
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Substance-related disorders in the last 12 months
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Acutely suicidal or history of suicide attempts in the past 5 years
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Presence of cognitive deficits (i.e., score ≤ 24 on the Mini Mental Status Exam) or history of significant cognitive disorders
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Presence of other significant neurological problems
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Presence of unstable comorbid medical conditions
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Currently receiving psychotherapy
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Unable to attend weekly therapy sessions
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | The Ottawa Hospital and University of Ottawa | Ottawa | Ontario | Canada | K1K 0T1 |
2 | The Ottawa Hospital | Ottawa | Ontario | Canada | K1Y 4E9 |
Sponsors and Collaborators
- Hopital Montfort
- The Ottawa Hospital
Investigators
- Principal Investigator: Diana Koszycki, PhD, Montfort Hospital and the University of Ottawa
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- Montfort Hospital