Expert Opinion on Investigational Drugs
May 26, 2026
Mina Takahashi, Richard C. Shelton
INTRODUCTION: Bipolar depression with acute suicidal ideation and behavior (ASIB) is a life- threatening manifestation of bipolar disorder (BD), with a suicide risk higher than that in other psychiatric disorders and the general population. Rapid and effective interventions are critical, as traditional therapies are often slow and frequently insufficient. Currently, no drug is approved by the...
Biomedicines
May 23, 2026
Dominik Jucha, Michał Klimas, Dominika Wiśniewska et al.
Background/Objectives: Bipolar disorder affects about 40 million people worldwide, and the greatest burden of the disease is associated with depressive episodes. About 25% of patients experience drug-resistant depression, in which standard treatment turns out to be insufficient, and monotherapy often does not bring full remission. Despite the use of second-generation antipsychotics, the...
Psychopharmacology
May 22, 2026
Wei-Chen Lin, Li-Kai Cheng, Tung-Ping Su et al.
Background: Studies have demonstrated that subanesthetic-dose ketamine may modulate the functioning of specific depression-related brain regions, particularly the anterior cingulate cortex and prefrontal cortex. However, how subanesthetic-dose ketamine alters the global and regional graph theory metrics of resting-state functional connectivity in patients with treatment-resistant depression...
Therapeutic Advances in Psychopharmacology
May 22, 2026
Liliana Patarroyo-Rodriguez, Vanessa K. Pazdernik, Jennifer L. Vande Voort et al.
Background: Ketamine and esketamine ((es)ketamine) rapidly reduce depressive symptoms and suicidal ideation (SI) in treatment-resistant depression (TRD), but whether early SI improvement during the acute phase of the treatment predicts reduced suicide-associated emergency department (SAED) visits over the longer term remains unclear. Objectives: To examine whether early improvements in SI,...
Scientific Reports
May 20, 2026
Guan-Jie She, Wei-Chi Li, Chun-Hsiang Chou et al.
Emerging evidence shows that ketamine, an N-methyl-D-aspartate (NMDA) receptor antagonist, can produce rapid anti-suicidal effects in treatment-resistant depression, yet its underlying neuropharmacological mechanisms remain elusive. The present study aimed at investigating the therapeutic effect of ketamine infusion on suicidal ideation by examining hemodynamic response changes in resting-state...
Pharmacological Reports
May 20, 2026
Aleksander Kwaśny, Alina Wilkowska, Michał Pastuszak et al.
Background: Treatment-resistant depression (TRD) poses a significant therapeutic challenge, with remission often unattainable. Recognition and detection of treatment-emergent adverse events (TEAEs) are essential, as these events may significantly influence the quality of treatment response. This knowledge aids in personalizing care and selecting the best treatment strategy. Methods: In a...
Therapeutic Advances in Psychopharmacology
May 19, 2026
correction
[This corrects the article DOI: 10.1177/20451253261437597.].
Journal of Affective Disorders
May 16, 2026
David S. Mathai, Madeleine Cluck, Amna M. Aslam et al.
1 citation
Background: Off-label use of intravenous ketamine (IVK) for depression is a widespread practice with limited regulation in the United States. There is an urgent need for current, evidence-informed treatment guidelines to facilitate patient safety, clinical decision-making, and care quality in real-world contexts. Methods: The American Society of Ketamine Physicians, Psychotherapists and...
Asian Journal of Psychiatry
May 16, 2026
Sonia Shenoy, Vijetha Shenoy Belle, Ravindra Neelakanthappa Munoli et al.
1 citation
Background: Oral ketamine is a novel treatment for management of depression. However, evidence related to its effectiveness and safety is unavailable. This systematic review aimed to assess the short-term efficacy and safety of oral ketamine compared to placebo or other modes of ketamine in randomized controlled trials (RCT) in unipolar depression, bipolar depression, and treatment-resistant...
Behavioral Sciences
May 14, 2026
Fabiola Raffone, Carlo Ignazio Cattaneo, Enrico Pessina et al.
Trauma-related autobiographical memories can manifest as involuntary, vivid, emotionally charged intrusions that perpetuate avoidance, negative emotions, and functional impairment. While these memories are central to post-traumatic stress disorder (PTSD), they also occur across diagnoses and are often reported in depressive disorders, including treatment-resistant depression (TRD). Although...