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Malek Bajbouj

10 papers in the library · 931 citations · publishing 2011-2026

Papers

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The Combination of Oxytocin with Mindfulness-Based Group Therapy Reduces Negative Symptoms in Schizophrenia Spectrum Disorders: A Triple-Blind, Placebo-Controlled, Randomized, Controlled Clinical Pilot Trial (OXYMIND)

medRxiv July 4, 2026 Marco Zierhut, Max Alt, Inge Maria Hahne et al.

Abstract Background Negative symptoms in schizophrenia spectrum disorders (SSD) remain insufficiently treated and require novel therapeutic approaches. Oxytocin may improve negative symptoms, although its effects appear highly context-dependent according to the social salience hypothesis. We conducted a randomized, triple-blind, placebo-controlled pilot study combining intranasal oxytocin with...

Changes of psychological and biological stress parameters in individuals with schizophrenia spectrum disorders participating in a mindfulness-based group therapy

Schizophrenia April 30, 2026 Marco Zierhut, S. Koop, N. Bergmann et al.

This study investigates changes in stress parameters in individuals with schizophrenia spectrum disorders participating in mindfulness-based group therapy (MBGT). N = 45 participants were randomised to MBGT or Treatment as Usual over four weeks. Before and after each session, psychological and biological stress markers by self-rating scales and cortisol saliva samples were assessed in the...

GH001 vs Placebo in Patients With Treatment-Resistant Depression

JAMA Psychiatry March 25, 2026 Wiesław Jerzy Cubała, Malek Bajbouj, Michael Bauer et al. 3 citations

Importance: Few pharmacotherapies are approved for treatment-resistant depression, and many patients do not achieve remission following treatment with those therapies. Objective: To examine the efficacy and safety of single-day treatment with a synthetic formulation of inhaled mebufotenin (GH001) vs placebo in patients with treatment-resistant depression. Design, Setting, and Participants: This...

Yoga-Based Group Intervention for Inpatients with Schizophrenia Spectrum Disorders-Feasibility, Acceptability, and Preliminary Outcomes of a Rater-Blinded Randomized Controlled Trial.

Schizophrenia Bulletin November 16, 2024 Inge Hahne, Marco Zierhut, Niklas Bergmann et al. 3 citations

The efficacy of yoga as an adjunctive treatment for schizophrenia spectrum disorders (SSD) has garnered interest. While yoga may positively influence various symptom domains, further investigation is needed due to the limited number, quality, and generalizability of studies. This study assessed the feasibility and acceptability (primary outcome) of a yoga-based group intervention (YoGI)...

Mindfulness-based group therapy for inpatients with schizophrenia spectrum disorders – feasibility, acceptability, and preliminary outcomes of a rater-blinded randomized controlled trial

European Psychiatry November 17, 2023 Kerem Böge, Inge Hahne, Niklas Bergmann et al.

Introduction The therapeutic effectiveness of mindfulness-based interventions (MBIs) has been shown for various mental disorders. However, for schizophrenia spectrum disorders (SSD), only a few trials have been conducted, mostly in outpatient settings. Objectives This study aimed to investigate feasibility, acceptability, and preliminary effectiveness of a four-week mindfulness-based group...

Predicting Antidepressant Effects of Ketamine: the Role of the Pregenual Anterior Cingulate Cortex as a Multimodal Neuroimaging Biomarker

The International Journal of Neuropsychopharmacology August 10, 2022 Anne Weigand, Matti Gärtner, Milan Scheidegger et al. 22 citations

BACKGROUND: Growing evidence underscores the utility of ketamine as an effective and rapid-acting treatment option for major depressive disorder (MDD). However, clinical outcomes vary between patients. Predicting successful response may enable personalized treatment decisions and increase clinical efficacy. METHODS: We here explored the potential of pregenual anterior cingulate cortex (pgACC)...

The Relationship Between Mindfulness, Depression, Anxiety, and Quality of Life in Individuals With Schizophrenia Spectrum Disorders

Frontiers in Psychology September 3, 2021 Niklas Bergmann, Eric Hahn, Inge Hahne et al.

Background: Schizophrenia spectrum disorders (SSD) are frequently accompanied by comorbid depressive and anxiety symptoms, as well as impaired quality of life (QoL). A growing body of evidence has demonstrated the relevance of mindfulness for SSD in recent years. The study examined the association between mindfulness, depression, anxiety, and QoL.Materials and Methods: A total of 83...

Effects of Mindfulness Training on Emotion Regulation in Patients With Depression: Reduced Dorsolateral Prefrontal Cortex Activation Indexes Early Beneficial Changes

Psychosomatic Medicine May 5, 2021 Thorsten Barnhofer, Tim Jonas Reeß, Maria Fißler et al. 24 citations

OBJECTIVE: Mindfulness-based interventions (MBIs) have been found to be a promising approach for the treatment of recurrent courses of depression. However, little is known about their neural mechanisms. This functional magnetic resonance imaging study set out to investigate activation changes in corticolimbic regions during implicit emotion regulation. METHODS: Depressed patients with a...

Efficacy and Safety of Flexibly Dosed Esketamine Nasal Spray Combined With a Newly Initiated Oral Antidepressant in Treatment-Resistant Depression: A Randomized Double-Blind Active-Controlled Study

American Journal of Psychiatry May 21, 2019 Vanina Popova, Ella Daly, Madhukar H. Trivedi et al. 879 citations

OBJECTIVE: About one-third of patients with depression fail to achieve remission despite treatment with multiple antidepressants. This study compared the efficacy and safety of switching patients with treatment-resistant depression from an ineffective antidepressant to flexibly dosed esketamine nasal spray plus a newly initiated antidepressant or to a newly initiated antidepressant (active...

Emotionalcognitive processing and brain metabolism after pharmacological challenge with ketamine

Pharmacopsychiatry September 1, 2011 Simone Grimm, Milan Scheidegger, Anke Henning et al.

Ketamine is a potent glutamatergic NMDA receptor antagonist with rapid antidepressant properties, thus providing a valuable research tool for the investigation of the neurobiology of major depressive disorder (MDD). Increasing evidence underscores the role of glutamate dependent neuroplasticity and glutamatergic neurotransmission and metabolism in the pathophysiology of MDD. This multimodal...