New research is exploring how ketamine therapy may influence cognitive flexibility, neuroplasticity, and rigid patterns of thinking associated with depression, anxiety, PTSD, and chronic pain. In this edition of Ketamine Korner, we examine studies on ketamine’s effects on rumination, maladaptive thought patterns, and large-scale brain networks such as the default mode network (DMN), alongside emerging evidence that ketamine may temporarily support adaptive thinking and emotional processing. We also explore how ketamine’s impact on neural connectivity and psychological flexibility may enhance engagement with psychotherapy, behavioral change, and rehabilitation in treatment-resistant psychiatric and pain conditions.

Emerging research suggests ketamine therapy may help address anhedonia, one of the most treatment-resistant symptoms of depression involving loss of motivation, pleasure, and emotional engagement. In this edition of Ketamine Korner, we explore studies from JAMA Psychiatry examining ketamine’s rapid effects on reward processing, motivational circuitry, and brain regions linked to pleasure and reinforcement, including the ventral striatum. We also examine how ketamine’s influence on glutamatergic and dopaminergic pathways may support functional recovery beyond overall mood improvement, highlighting a growing shift toward symptom-specific approaches in modern depression treatment.

Questions about memory, cognition, and long-term brain health are common in conversations around ketamine therapy. In this edition of Ketamine Korner, we explore research on ketamine and cognitive function, including long-term esketamine safety data from the SUSTAIN-2 trial and systematic reviews examining memory, attention, executive function, and dissociative effects in clinical settings. We also examine the important distinction between medically supervised ketamine treatment and chronic recreational use, highlighting what current evidence suggests about ketamine’s long-term cognitive safety profile in modern psychiatric care.

Emerging research is exploring the complex relationship between inflammation, chronic pain, depression, and ketamine therapy. In this edition of Ketamine Korner, we examine studies investigating ketamine’s potential interactions with inflammatory signaling, cytokines, neuroplasticity, and glutamatergic pathways in treatment-resistant depression and chronic pain conditions like fibromyalgia and CRPS. We also explore the evolving role of neuroinflammation in psychiatry and pain medicine, highlighting how ketamine’s therapeutic effects may extend beyond neurotransmission into broader brain-body regulatory systems involved in stress, mood, and pain processing.

New research is highlighting the deep neurobiological connection between chronic pain, depression, and ketamine therapy. In this edition of Ketamine Korner, we explore studies on ketamine for CRPS, fibromyalgia, and centralized pain syndromes, alongside emerging evidence that chronic pain and mood disorders share overlapping neural pathways involving central sensitization, glutamatergic dysfunction, and impaired neuroplasticity. We also examine how ketamine’s effects on pain perception, emotional regulation, and brain circuitry may support integrated treatment approaches for patients experiencing treatment-resistant pain and depression simultaneously.

Emerging research is reshaping how clinicians think about long-term ketamine therapy, relapse prevention, and maintenance treatment for treatment-resistant depression. In this edition of Ketamine Korner, we explore landmark studies including the SUSTAIN-1 and SUSTAIN-2 trials, which examined intranasal esketamine for relapse prevention, long-term safety, cognitive effects, and sustained symptom management. We also look at the evolving history of ketamine maintenance strategies, the shift toward evidence-based long-term psychiatric care, and why ongoing monitoring, psychotherapy, and structured treatment plans are becoming central to modern ketamine therapy.

New research is exploring how ketamine therapy may provide more durable relief for treatment-resistant depression through maintenance-focused treatment strategies. In this edition of Ketamine Korner, we examine a 2024 Nature Medicine clinical trial investigating extended-release oral ketamine (R-107) for long-term depression management, alongside the evolving history of ketamine’s rapid antidepressant effects and relapse prevention research. We also explore why sustained response, maintenance protocols, and evidence-based continuation strategies have become central topics in modern ketamine therapy and psychiatric research.

Emerging research continues to explore ketamine therapy as a potential treatment option for Complex Regional Pain Syndrome (CRPS) and other chronic neuropathic pain conditions. In this edition of Ketamine Korner, we examine randomized clinical trials and systematic reviews investigating intravenous ketamine infusions for refractory CRPS, including their effects on pain reduction, central sensitization, and NMDA receptor activity. We also explore the history of ketamine in chronic pain management, the role of neuroplasticity in CRPS treatment, and why experts emphasize combining ketamine therapy with physical rehabilitation, desensitization techniques, and multidisciplinary care for long-term recovery.

New research continues to highlight ketamine therapy’s potential role in rapidly reducing suicidal ideation in severe depression. In this edition of Ketamine Korner, we explore recent meta-analyses and landmark clinical trials examining ketamine and esketamine for acute suicidal thoughts, including findings from Columbia University and FDA-approved Spravato treatment protocols. We also look at the history of ketamine as a rapid-acting antidepressant, its evolving role in crisis intervention, and why experts emphasize that ketamine should be used within a comprehensive mental health treatment plan that includes therapy, monitoring, and ongoing support.

Emerging research continues to expand ketamine therapy beyond depression and into the treatment of anxiety disorders and PTSD. In this edition of Ketamine Korner, we explore recent studies on ketamine for social anxiety disorder, chronic PTSD, and treatment-resistant anxiety, alongside growing evidence surrounding ketamine’s effects on neuroplasticity and fear circuitry in the brain. We also examine how clinicians are integrating ketamine-assisted therapy with trauma-focused approaches like prolonged exposure therapy, mindfulness, and cognitive behavioral therapy to support deeper emotional healing and long-term symptom relief.

Ketamine therapy research continues to evolve as new studies explore how therapeutic context may influence treatment outcomes for severe depression. In this edition of Ketamine Korner, we examine findings from the 2025 MUSIK trial, which suggests that ketamine-assisted psychotherapy, emotional support, and integration may help extend antidepressant benefits. We also explore the history of ketamine in mental health treatment, the growing adoption of structured therapeutic models like the Montreal Model, and why environment and psychological support may play a critical role in modern ketamine therapy.

Ketamine therapy continues to evolve as both researchers and clinicians explore its growing role in modern psychiatry. In this edition of Ketamine Korner, we examine new 2025 research on extending ketamine’s antidepressant effects through enhanced synaptic plasticity, trace the history of ketamine in mental health treatment, and break down common misconceptions about ketamine therapy, safety, FDA approval, and clinical supervision. Learn how advances in ketamine research may shape the future of treatment-resistant depression and mental health care.