A Study of LY2216684 in Participants With Major Depression Disorder

Long-Term, Open-Label, Safety Study of LY2216684 12 to 18 mg Once Daily as Adjunctive Treatment for Adult Patients With Major Depressive Disorder Who Were Partial Responders to Selective Serotonin Reuptake Inhibitor Treatment

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.

Inclusion Criteria:

• Participants must have completed Study LNBM: NCT01173601 or Study LNBQ: NCT01187407
• Participants must be competent and able to give their own informed consent

Exclusion Criteria:

• Participants that have had or currently have any additional ongoing Diagnostic and Statistical Manual of Mental Disorder, fourth edition, text revision (DSM-IV-TR) Axis I condition other than major depression that was considered the primary diagnosis within 1 year of entering trial
• Participants that have had any anxiety disorder that was considered a primary diagnosis within the past year
• Participants that have a current or previous diagnosis of bipolar disorder, schizophrenia, or other psychotic disorder
• Participants that have a history of substance abuse within the past 1 year, and/or substance dependence within the past 1 year, not including caffeine and nicotine
• Participants that have an Axis II disorder that, in the judgment of the investigator, would interfere with compliance with the study
• Participants that have had a lack of full response of the current depressive episode to 2 or more adequate courses of antidepressant therapy at a clinically appropriate dose for at least 4 weeks, or in the judgment of the investigator, the participant has treatment-resistant depression
• Participants that have a history of electroconvulsive therapy (ECT), transcranial magnetic stimulation (TMS), or psychosurgery within the last year
• Participants who are women who are pregnant or breastfeeding
• Participants who, in the opinion of the investigator, are judged to be at serious risk for harm to self or others
• Participants that have a serious or unstable medical illness
• Participants that have any diagnosed medical condition which could be exacerbated by noradrenergic agents
• Participants that have a history of severe allergies to more than 1 class of medication or multiple adverse drug reactions
• Participants that have a history of any seizure disorder (other than febrile seizures)
• Participants that have received treatment with a monoamine oxidase inhibitor (MAOI) within 14 days prior to entering trial or have a potential need to use an MAOI within 3 days after discontinuation from the study
• Participants that require psychotropic medication other than sedative/hypnotic medication for sleep
• Participants who are taking or have received treatment with any excluded medications within 7 days prior to entering trial
• Participants that have a thyroid stimulating hormone (TSH) level outside the laboratory established reference range. Participants previously diagnosed with hyperthyroidism or hypothyroidism who have been treated with a stable dose of thyroid supplement for at least the past 3 months, and who are clinically and chemically euthyroid will be allowed to participate in the study.
• Participants that have initiated or discontinued hormone therapy within the previous 3 months prior to enrollment
• Participants that have initiated psychotherapy, change in intensity of psychotherapy or other nondrug therapies (such as acupuncture or hypnosis) within 6 weeks prior to enrollment or at any time during the study.
• Participants have a positive urine drug screen (UDS) for any substances of abuse on entering trial
• Participants have significantly violated rules that a participant must comply with during Study LNBM: NCT01173601 or Study LNBQ: NCT01187407