The Effect of Patient Cost-Sharing on Antidepressant and Adjunctive Therapy Use

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

48865 participants

Study Classification

OBSERVATIONAL

Study Start Date

2009-06-30

Study Completion Date

2010-10-31

Brief Summary

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The primary objective of this study is to measure the effects of patient cost-sharing on the initiation of adjunctive treatment and subsequent healthcare utilization and expenditures among a population of commercially insured adults on antidepressant therapy.

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Detailed Description

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Conditions

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Depressive Disorder, Major

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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depression & initial prescription for an antidepressant

A sample of adults with a diagnosis of depression and an initial prescription fill for an antidepressant

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Adult patients (aged 18-64) will be selected from the MarketScan Commercial Database between January 1, 2004, and September 30, 2008, if they have at least two medical claims with a diagnosis of depression and at least one prescription fill for an antidepressant medication.

Exclusion Criteria

* Patients who have any claim with a diagnosis of dementia, schizophrenia, delusional disorder, psychoses, pervasive development disorder, mental retardation, cerebral degenerations, Parkinson's disease, senility, manic depression, bipolar disorder, or major depressive disorder with psychotic symptoms.

Minimum Eligible Age

18 Years

Maximum Eligible Age

64 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No