Introduction: The aim was to assess the efficacy of total sleep deprivation (TSD) with sleep phase advance (SPA) in treatment-resistant depression (TRD) and associated biochemical factors.
Methods: We studied nine males and 12 females, aged 49±14 years, with treatment-resistant unipolar or bipolar depression, receiving antidepressant and mood-stabilizing drugs. The four-day schedule included single TSD and three consecutive nights with SPA. Biochemical markers were measured on the day before and on 1st, 7th and 14th day after the TSD.
Results: Ten subjects met criteria for response, defined as a reduction of ≥50% in the Hamilton Depression Rating Scale, on the 14th day. Concentrations of cortisol at baseline were lower in responders, and they decreased during therapy in both groups. In responders, there was an increase of interleukin-10 (IL-10) and IL-1β on the 14th day.
Discussion: Our preliminary study demonstrated the efficacy of pharmacotherapy augmentation by TSD and SPA in half of the patients with TRD. The main biochemical factors related to clinical response included status of cortisol and increase in IL-10 and IL-1β levels.
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