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Siegfried Kasper

18 papers in the library · 1,632 citations · publishing 2015-2026

Papers

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Emerging pharmacological and neuromodulation interventions for suicidal ideation and behaviour.

European Neuropsychopharmacology July 17, 2026 Mauro Scala, Enrico Magrini, Ivana Leccisotti et al.

Suicide remains a leading cause of premature mortality worldwide. Current treatments are limited by delayed onset, durability, or poor tolerability. This narrative review, informed by a structured literature search, summarises the last decade of evidence on pharmacological and neuromodulation interventions for suicidal ideation (SI) or suicide attempt (SA) that are not approved for these...

DOI: 10.1016/j.euroneuro.2026.112888 (opens in new tab) Full text (opens in new tab) N-methyl-d-aspartate receptor antagonists Neuromodulation Opioid agonists Suicidal ideation +2

Real-world effectiveness and safety of intranasal esketamine for treatment-resistant depression: data from the enTRD registry

European Psychiatry June 23, 2026 Maximilian Preiß, Valentin Popper, Luna Helene Charlotte Faber et al.

An abstract is not available for this content so a preview has been provided. As you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

DOI: 10.1192/j.eurpsy.2026.12234 (opens in new tab) Full text (opens in new tab) Nasal administration Action physics Onset of action Adverse effect +2

Pharmacological augmentation in treatment-resistant depression: a neurobiologically informed, practical decision guide for treatment choice with lithium, quetiapine, or esketamine.

International Journal of Psychiatry in Clinical Practice April 29, 2026 David Eckert, Siegfried Kasper

The treatment of treatment-resistant depression (TRD) remains a clinical challenge. Pharmacologically, several augmentation options exist. The aim of this study was to present a mechanistically informed and clinically oriented decision-making framework for the established strategies of lithium, quetiapine, and esketamine. We conducted a narrative, non-systematic review, performing a targeted...

DOI: 10.1080/13651501.2026.2663307 (opens in new tab) Full text (opens in new tab) Esketamine Treatment-resistant depression trd Lithium Pharmacological augmentation +1

Beyond first-line antidepressants: lithium, quetiapine, or esketamine? Integrating meta-analyses and preliminary head-to-head evidence.

The World Journal of Biological Psychiatry January 22, 2026 David Eckert, Siegfried Kasper

Treatment-resistant depression (TRD) poses a major challenge in research and clinical practice. Various guidelines recommend different pharmacological approaches. While lithium and second-generation antipsychotics have traditionally been the drugs of choice in cases of medication resistance, recent years have seen increasing evidence for the efficacy of esketamine as a fast-acting agent against...

DOI: 10.1080/15622975.2026.2617195 (opens in new tab) Full text (opens in new tab) Esketamine Treatment-resistant depression trd Lithium Pharmacological augmentation +1

597. ARE SIDE EFFECTS NECESSARY FOR ANTIDEPRESSIVE TREATMENT: THE PSILOCYBIN EXPERIENCE

The International Journal of Neuropsychopharmacology August 1, 2025 Siegfried Kasper

Abstract Background Psycholicibin is now studied in clinical settings. Aims & Objectives To elaborate if side effects are part of the therapeutic process. Method Literature overview and personal statement. Results The recent development of the socalled “psychedelics” reminds us that unfortunately some medications which we used in psychiatry have a large burden of side effects, like the...

Oral Ketamine for the Treatment of Depression: A randomized controlled trial and meta-analysis

medRxiv Preprint Server March 21, 2025 Leo R. Silberbauer, Benjamin Eggerstorfer, Paul Michenthaler et al. 1 citation preprint

Background Ketamine represents a significant advancement in antidepressant therapy, but the commonly used intravenous and intranasal application routes currently limit its availability beyond specialized centers. By contrast, oral ketamine treatment might constitute an alternative that is easy to administer with established safety and efficacy for patients with chronic and severe pain at home.

DOI: 10.1101/2025.03.21.25324252 (opens in new tab) Full text (opens in new tab) Depression treatment Mental health management Mood disorder therapy Antidepressant care +18

Perspectives in treatment-resistant depression: esketamine and electroconvulsive therapy.

Wiener klinische Wochenschrift March 1, 2025 Pia Baldinger-Melich, Marie Spies, Ina Bozic et al. 5 citations

Modern electroconvulsive therapy (ECT) and the approval of nasal esketamine for clinical use have significantly improved the approach to treatment-resistant depression (TRD), which is defined as non-response to at least two different courses of antidepressants with verified adherence to treatment, adequate dosage, and duration of treatment. The goal of this literature review is to present the...

DOI: 10.1007/s00508-024-02358-w (opens in new tab) Full text (opens in new tab) Spravato Antidepressant treatment Electroconvulsive therapy ect Treatment-resistant depression trd +6

KET or ECT for treatment-resistant depression?

International Journal of Psychiatry in Clinical Practice 2024 Marie Spies, Siegfried Kasper, Richard Frey et al.

Modern electroconvulsive therapy (ECT) and ketamine currently represent the most effective treatment options in depressed patients showing non-response to two or more trials of antidepressants. Recently, large sample head-to-head comparisons of intravenous ketamine versus ECT for treatment-resistant depression (TRD) have fuelled the debate on which therapy might be more effective. However, the...

Overcoming the myths of esketamine administration: different and not difficult

Frontiers in Psychiatry November 23, 2023 Florian Buchmayer, Siegfried Kasper 19 citations

Intranasal esketamine for treatment-resistant depression has been introduced and approved by the FDA and EMA in 2019 and 2020, respectively. Since then, the administration practices were found different among countries. Major depression has a high impact on many humans lives worldwide and more than a third of treated people are not responding after several treatment attempts. Additional...

Synthesizing the Evidence for Ketamine and Esketamine in Treatment-Resistant Depression: An International Expert Opinion on the Available Evidence and Implementation

American Journal of Psychiatry March 17, 2021 Roger S McIntyre, Joshua D. Rosenblat, Charles B. Nemeroff et al. 694 citations

Replicated international studies have underscored the human and societal costs associated with major depressive disorder. Despite the proven efficacy of monoamine-based antidepressants in major depression, the majority of treated individuals fail to achieve full syndromal and functional recovery with the index and subsequent pharmacological treatments. Ketamine and esketamine represent...

Practical recommendations for the management of treatment-resistant depression with esketamine nasal spray therapy: Basic science, evidence-based knowledge and expert guidance

The World Journal of Biological Psychiatry November 3, 2020 Siegfried Kasper, Wiesław Jerzy Cubała, Andrea Fagiolini et al. 84 citations

OBJECTIVES: -methyl-d-aspartate (NMDA) glutamate receptor antagonist, is a novel, fast-acting option in this patient population. This manuscript provides expert guidance on the practicalities of using esketamine nasal spray. METHODS: A group of six European experts in major depressive disorder (MDD) and TRD, with clinical experience of treating patients with esketamine nasal spray, first...

Esketamine Nasal Spray for Rapid Reduction of Depressive Symptoms in Patients With Major Depressive Disorder Who Have Active Suicide Ideation With Intent: Results of a Phase 3, Double-Blind, Randomized Study (ASPIRE II)

The International Journal of Neuropsychopharmacology August 26, 2020 Dawn F. Ionescu, Dong-Jing Fu, Xin Qiu et al. 411 citations

BACKGROUND: Patients with major depressive disorder (MDD) having active suicidal ideation with intent require immediate treatment. METHODS: This double-blind study (ASPIRE II) randomized adults (aged 18-64 years) with MDD having active suicidal ideation with intent to esketamine 84 mg or placebo nasal spray twice weekly for 4 weeks, given with comprehensive standard of care (hospitalization ≥5...

DOI: 10.1093/ijnp/pyaa068 (opens in new tab) Full text (opens in new tab) Major depressive disorder Clinical global impression Placebo Randomized controlled trial +6

Esketamine Nasal Spray Plus Oral Antidepressant in Patients With Treatment-Resistant Depression

The Journal of Clinical Psychiatry April 20, 2020 Ewa Wajs, Leah Aluisio, Richard Holder et al. 288 citations

OBJECTIVE: To evaluate long-term safety and efficacy of esketamine nasal spray plus a new oral antidepressant (OAD) in patients with treatment-resistant depression (TRD). METHODS: This phase 3, open-label, multicenter, long-term (up to 1 year) study was conducted between October 2015 and October 2017. Patients (≥ 18 years) with TRD (DSM-5 diagnosis of major depressive disorder and nonresponse...

Rapid antidepressant effect of S-ketamine in schizophrenia.

European Neuropsychopharmacology August 2018 Lucie Bartova, Konstantinos Papageorgiou, Ivan Milenkovic et al.

Rapid anti-suicidal and antidepressant effects of ketamine have repeatedly been confirmed in unipolar and bipolar depression. Although meaningful antidepressant efficacy of ketamine has also been shown in depressed patients with a history of psychotic symptoms, its administration in psychotic disorders has largely been neglected due to its potential to exacerbate dissociative or psychotic...

Alternating intravenous racemic ketamine and electroconvulsive therapy in treatment resistant depression: A case report

European Psychiatry April 1, 2017 Lucie Bartova, Ana Weidenauer, Markus Dold et al.

IntroductionTreatment resistant depression (TRD) affecting approximately 10–30% of all depressed patients often remains misdiagnosed and undertreated, leading to a higher risk of relapse and suicide. Electroconvulsive therapy (ECT) and sub-anesthetic ketamine have repeatedly shown to be effective in the TRD population. Administering ketamine as an anesthetic component to augment antidepressant...

Ketamine-dependent neuronal activation in healthy volunteers.

Brain Structure and Function April 2017 Anna S. Höflich, Andreas Hahn, Martin Küblböck et al.

Over the last years, a number of studies have been conducted to clarify the neurobiological correlates of ketamine application. However, comprehensive information regarding the influence of ketamine on cortical activity is still lacking. Using resting-state functional MRI and integrating pharmacokinetic information, a double-blind, randomized, placebo-controlled, crossover study was performed...

Administration of ketamine for unipolar and bipolar depression.

International Journal of Psychiatry in Clinical Practice March 2017 Christoph Kraus, Ulrich Rabl, Thomas Vanicek et al.

Clinical trials demonstrated that ketamine exhibits rapid antidepressant efficacy when administered in subanaesthetic dosages. We reviewed currently available literature investigating efficacy, response rates and safety profile. Twelve studies investigating unipolar, seven on bipolar depression were included after search in medline, scopus and web of science. Randomized, placebo-controlled or...

Ketamine-Induced Modulation of the Thalamo-Cortical Network in Healthy Volunteers As a Model for Schizophrenia

The International Journal of Neuropsychopharmacology April 19, 2015 Anna S. Höflich, Andreas Hahn, Martin Küblböck et al. 130 citations

BACKGROUND: Schizophrenia has been associated with disturbances of thalamic functioning. In light of recent evidence suggesting a significant impact of the glutamatergic system on key symptoms of schizophrenia, we assessed whether modulation of the glutamatergic system via blockage of the N-methyl-D-aspartate (NMDA)-receptor might lead to changes of thalamic functional connectivity. METHODS:...