Journal
BMC PSYCHIATRY
Volume 17, Issue -, Pages -Publisher
BMC
DOI: 10.1186/s12888-017-1385-0
Keywords
Major depressive disorder; Antidepressants; Treatment patterns; Economic burden; Healthcare resource utilization; Healthcare costs
Categories
Funding
- Takeda Pharmaceutical Company, Ltd.
- Lundbeck A/S
- Treatment Patterns, Healthcare Resource Utilization, and Costs Following First-Line Antidepressant Treatment in Major Depressive Disorder
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Background: Although the symptoms of major depressive disorder (MDD) are often manageable with pharmacotherapy, response to first-line antidepressant treatment is often less than optimal. This study describes long-term treatment patterns in MDD patients in the United States and quantifies the economic burden associated with different treatment patterns following first-line antidepressant therapy. Methods: MDD patients starting first-line antidepressant monotherapy and having continuous enrollment >= 12 months before and >= 24 months following the index date (i.e., the first documented prescription fill) were selected from the Truven Health Analytics MarketScan (2003-2014) database. Based on the type of first treatment change following initiation, six treatment cohorts were defined a priori (persistence; discontinuation; switch; dose escalation; augmentation; and combination). Treatment patterns through the fourth line of therapy within each cohort, healthcare resource utilization (HCRU), and cost analyses were restricted to patients with adequate treatment duration (defined as >= 42 days) in each line (analysis sub-sample, N = 21,088). HCRU and costs were described at the cohort and pattern levels. Treatment cohorts representing <5% of the analysis sub-sample were decided a priori not to be analyzed due to limited sample size. Results: 39,557 patients were included. Mean age was 42.1 years, 61.1% of patients were female, and mean follow-up was 4.1 years. Among the analysis sub-sample, the discontinuation (49.1%), dose escalation (37.4%), and switch (6.6%) cohorts were the most common of all treatment cohorts. First-line antidepressant discontinuation without subsequent MDD pharmacotherapy (22.9%) and cycling between discontinuation and resumption (11.2%) were the two most common treatment patterns. Median time to discontinuation was 23 weeks. The switch cohort exhibited the highest HCRU (18.9 days with medical visits per-patient-per-year) and greatest healthcare costs ($11,107 per-patient-per-year) following the index date. Treatment patterns representing a cycling on and off treatment in the switch cohort were associated with the greatest healthcare costs overall. Conclusion: A high proportion of patients discontinue first-line antidepressant shortly after initiation. Patterns representing a cycling on and off treatment in the switch cohort were associated with the highest healthcare costs. These findings underscore challenges in effectively treating patients with MDD and a need for personalized patient management.
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