Pharmacologic Treatment Augmentation in Chronic Depression

Two ketamine hydrochloride (Ketamin Inresa 2 ml) infusions (interval 2-3 days) per week for three weeks, 6 infusions in total. Ketamine hydrochloride (Ketamin Inresa 2 ml) is applied continuously over a time span of 40 minutes with a subanesthetic dosage of 0.5 mg per kg body weight.

Two times placebo (Isotone E NaCL 0.9 %) infusions (interval 2-3 days) per week for three weeks, 6 infusions in total. Placebo is applied continuously over a time span of 40 minutes.

In addition to standard ward psychotherapeutic program (group and single sessions) with cognitive behavioural, sociotherapeutic, occupational therapy and physiotherapeutic elements, patients in the CBASP conditions receive one CBASP group session (50 min) per week for 12 weeks. The single sessions (one 50 min and one 25 min per week) contents are CBASP-specific.

Standard ward psychotherapeutic program (group and single sessions) with cognitive behavioural, sociotherapeutic, occupational therapy and physiotherapeutic elements.