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D. Barbosa

3 papers in the library · 5 citations · publishing 2024-2026

Papers

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Exploratory non-randomized clinical trial of subcutaneous esketamine in treatment-resistant depression: Effects of ketamine-assisted psychotherapy

Journal of Affective Disorders August 10, 2026 Yves Martins Varela, Patrícia Cavalcanti-Ribeiro, Geovan Menezes de Sousa et al.

BACKGROUND: Ketamine is an effective rapid-acting treatment for treatment-resistant depression (TRD), producing antidepressant effects within hours of administration. Because it induces states of heightened neuroplasticity and psychological openness, psychotherapy may enhance its therapeutic effects. METHODS: This exploratory, nonrandomized, open-label clinical trial evaluated the adjunctive...

Dissociation and Antidepressant Response to Subcutaneous Esketamine: A Clinical Study

Journal of Psychiatric Research July 1, 2026 K S de Freitas Goncalves, Vagner Deuel O de Tavares, Fernanda Palhano-Fontes et al.

ABSTRACT: Introduction Ketamine and esketamine have reemerged as promising interventions for treatment-resistant depression (TRD), yet debate persists regarding the clinical relevance of acute dissociative experiences. This secondary exploratory analysis examined the relationship between dissociative experiences induced by subcutaneous esketamine and antidepressant response in patients with...

The antidepressant effects of vaporized N,N-Dimethyltryptamine: a preliminary report in treatment-resistant depression

medRxiv January 4, 2024 Marcelo Falchi-Carvalho, Handersson Barros, Raynara Bolcont et al. 5 citations preprint

Abstract Introduction N,N-Dimethyltryptamine (DMT), a naturally occurring psychedelic tryptamine contained in the indigenous ayahuasca brew has shown antidepressant effects. This Phase 2a clinical trial investigates for the first time the efficacy of isolated DMT in treatment-resistant depression (TRD). Methods Six TRD patients participated in an open-label, fixed-order, dose-escalation study,...