What this phase means
Phase 4: the treatment is already approved. This study asks new questions — longer-term effects, other diseases, or how it compares in everyday care.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are Lithium, or Cariprazine. The registry lists allocation as randomized. The goal is to study the effect of lithium compared to cariprazine in patients with depression in a bipolar disease.
They plan to enroll about 122 people at Aalborg. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
Lithium Versus Cariprazine in the Acute Phase Treatment of Bipolar Depression: a Pragmatic Head-to-head Open, Randomized Multicenter Study: The 9th Study of the Danish University Antidepressant Group (DUAG 9)
Interventions: Lithium, Cariprazine
Primary outcome (registry wording): Change in Hamilton Depressions scale, version 6 (HDS-6)