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Abstract

Aim: Estimate the cost-per-remitter with esketamine nasal spray plus an oral antidepressant (ESK NS + OAD) versus quetiapine extended release plus an oral antidepressant (QTP XR + OAD) among adults with treatment-resistant depression (TRD). Materials & methods: An Excel-based model was developed to estimate the cost-per-remitter for ESK NS + OAD and QTP XR + OAD from the perspective of a US commercial insurance plan and Medicaid. Remission and response rates were estimated in 4-week intervals over 32 weeks using data from the ESCAPE-TRD phase IIIb clinical trial comparing ESK NS + OAD versus QTP XR + OAD in adults with TRD. Direct healthcare costs were sourced from health economic literature and the RED BOOK® drug pricing database. Indirect costs were derived from a separate analysis of ESCAPE-TRD using the Work Productivity and Activity Impairment: Depression questionnaire. Adults not remitting/responding either stayed on current treatment or discontinued current treatment and initiated either augmented therapy with antipsychotics or repetitive transcranial magnetic stimulation. In a scenario analysis, all individuals who did not achieve response and discontinued treatment initiated repetitive transcranial magnetic stimulation. Results: The remission rate at 32 weeks was 50% for adults receiving ESK NS + OAD and 33% for adults receiving QTP XR + OAD. The cost-per-remitter for ESK NS + OAD compared with QTP XR + OAD was $3102.17 lower in the commercial setting and $456.12 lower in the Medicaid setting. Under the scenario analysis, the cost-per-remitter for ESK NS + OAD compared with QTP XR + OAD was $15,133.66 lower in the commercial setting and $12,487.62 lower in the Medicaid setting. Conclusion: The findings suggest that ESK NS + OAD is a cost-effective treatment for adults with TRD compared with QTP XR + OAD in the commercial and Medicaid settings.

Plain language summary: Comparison of cost and benefits of esketamine nasal spray versus quetiapine XR for treatment-resistant depression

What is this article about?

Esketamine nasal spray plus oral antidepressant (ESK NS + OAD) and quetiapine extended release plus oral antidepressant (QTP XR + OAD) are treatments for adults with treatment-resistant depression. This study uses an Excel-based model to determine whether treatment with ESK + OAD delivers more benefit for the money spent compared with treatment with QTP XR + OAD under commercial and Medicaid insurance coverage. Our model leveraged treatment efficacy results from the ESCAPE-TRD clinical trial and considered overall healthcare costs associated with treatment use, inpatient and outpatient visits and reduced work productivity.

What were the results?

We find that although ESK NS + OAD has higher annual costs, these are more than offset by the better clinical outcomes achieved by this treatment compared with QTP XR + OAD.

What do the results mean?

Our findings suggest that, under commercial or Medicaid insurance, more patients treated with ESK NS + OAD achieved remission compared with those on QTP XR + OAD, leading to lower related medical costs.

Supplementary Material

File (supplementary materials.docx)

References

Papers of special note have been highlighted as: • of interest
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