Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Investigation of the Rapid (Next Day) Antidepressant Effects of an NMDA Antagonist
Brief Summary: Depressive disorders may be severe, chronic and often life-threatening illnesses. Impairment in physical and social functioning resulting from depression can be just as severe as other chronic medical illnesses. Recent preclinical and clinical studies suggest that the glutamatergic system is involved in the mechanism of action of antidepressants.

This study examines whether ketamine can cause a rapid-next day antidepressant effect in patients with Major Depressive Disorder.

This study was designed to address the questions:

Does the NMDA antagonist ketamine produce rapid antidepressant effects in patients with treatment-resistant major depression? What are the neurobiological correlates of antidepressant response (examining multi-modal MRI, MEG, polysomnography and serum markers) Patients, ages 18 to 65 years with treatment-resistant major (unipolar) depression will in a double-blind crossover study receive either intravenous ketamine or saline solution.


Options:
A: Arm Label: AXS-05; Type: EXPERIMENTAL; Interventions: Drug: AXS-05 | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: AXS-05; Assigned to Arm(s): AXS-05 | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Placebo
B: Arm Label: Omega-3; Type: EXPERIMENTAL; Interventions: Dietary Supplement: Smoothie 1g Eicosapentaneoic Acid (EPA) and 1g Docoshaexanoic Acid (DHA) | Arm Label: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Dietary Supplement: Smoothie 1g Eicosapentaneoic Acid (EPA) and 1g Docoshaexanoic Acid (DHA) | Intervention Type: DIETARY_SUPPLEMENT; Name: Smoothie 1g Eicosapentaneoic Acid (EPA) and 1g Docoshaexanoic Acid (DHA); Assigned to Arm(s): Omega-3, Placebo
C: Arm Label: Part 1: Block A MK-8777; Type: EXPERIMENTAL; Interventions: Drug: MK-8777 | Arm Label: Part 1: Block A Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Part 1: Block B MK-8777; Type: EXPERIMENTAL; Interventions: Drug: MK-8777 | Arm Label: Part 1: Block B Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Part 1: Block C MK-8777; Type: EXPERIMENTAL; Interventions: Drug: MK-8777 | Arm Label: Part 1: Block C Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Part 1: Block D MK-8777; Type: EXPERIMENTAL; Interventions: Drug: MK-8777 | Arm Label: Part 1: Block D Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Arm Label: Part 2: MK-8777 200 mg; Type: EXPERIMENTAL; Interventions: Drug: MK-8777 | Arm Label: Part 2: MK-8777 800 mg; Type: EXPERIMENTAL; Interventions: Drug: MK-8777 | Arm Label: Part 2: Placebo; Type: PLACEBO_COMPARATOR; Interventions: Drug: Placebo | Intervention Type: DRUG; Name: MK-8777; Assigned to Arm(s): Part 1: Block A MK-8777, Part 1: Block B MK-8777, Part 1: Block C MK-8777, Part 1: Block D MK-8777, Part 2: MK-8777 200 mg, Part 2: MK-8777 800 mg | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Part 1: Block A Placebo, Part 1: Block B Placebo, Part 1: Block C Placebo, Part 1: Block D Placebo, Part 2: Placebo
D: Arm Label: Ketamine, Then Placebo; Type: EXPERIMENTAL; Interventions: Drug: Ketamine, Drug: Placebo | Arm Label: Placebo, Then Ketamine; Type: EXPERIMENTAL; Interventions: Drug: Ketamine, Drug: Placebo | Intervention Type: DRUG; Name: Ketamine; Assigned to Arm(s): Ketamine, Then Placebo, Placebo, Then Ketamine | Intervention Type: DRUG; Name: Placebo; Assigned to Arm(s): Ketamine, Then Placebo, Placebo, Then Ketamine

Answer: D