Conditions: Major Depressive Disorder
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 288
Healthy volunteers: no

Brief summary:
The primary objective of this study is to evaluate the long-term safety and tolerability of LY2216684 administered once daily in the adjunctive treatment with an Selective Serotonin Reuptake Inhibitors (SSRI) for up to approximately 1 year in participants with Major Depressive Disorder (MDD) who were partial responders to their SSRI treatment.

Detailed description:

Arms:
arm 1: LY2216684: 12 milligrams (mg) or 18 mg, administered orally, once daily for 52 weeks, adjunctive to a selective serotonin reuptake inhibitor (SSRI).

During the open-label phase, all participants started at the 12 mg dose and could have the dose increased to 18 mg after the first week of treatment. During the first 12 weeks, participants were allowed (at scheduled or unscheduled visits) to decrease their dose to 12 mg based on response. After a decrease in dose to 12 mg, participants could have had an increase back up to 18 mg at any scheduled visit based on response and tolerability. After 12 weeks of treatment, participants maintained a stable dose.

Open-label treatment was followed by a 1-week abrupt discontinuation phase. Participants who either completed study visits through Week 52 or discontinued early from the study for any reason returned 1 week later for follow-up visit. Participants did not receive LY2216684 but continued their SSRI treatment at a stable dose.

Interventions: intervention 1: LY2216684 intervention 2: SSRI
Intervention descriptions: intervention 1: None intervention 2: Participants were to enter the study taking their current stable SSRI treatment dose and maintain the same dose throughout the study.

Protocol document: