Skip to content

Raynara Bolcont

10 papers in the library · 95 citations · publishing 2024-2026

Papers

Sort Most recent Most cited

Beyond symptom reduction: DMT improves anxiety, life satisfaction, and quality of life in healthy volunteers and patients with depression

Journal of Psychopharmacology July 8, 2026 Raynara Bolcont, Fernanda Palhano-Fontes, Handersson Barros et al.

BACKGROUND: -dimethyltryptamine (DMT); however, long-term effects, including broader well-being dimensions, are sparsely explored across populations. AIMS: Investigating whether DMT produces sustained improvements in anxiety, life satisfaction, and quality of life, in both healthy individuals and patients with treatment-resistant depression (TRD). METHODS: In 2 open-label clinical trials, 27...

DOI: 10.1177/02698811261465005 (opens in new tab) Anxiety Life satisfaction Depression economics Optimism +8

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...

DMT, Madness, and Healing: Psychosis Model, Therapy Model, and Their Relations to Mystical Experiences and Positive Emotionality

Research Square May 20, 2026 Isabel Wießner, Marcelo Falchi-Carvalho, Sophie Laborde et al. preprint

Abstract Paradoxically, psychedelics have long been used as models of both psychosis and therapy. After proposing mystical experiences as a link between these models for lysergic acid diethylamide (LSD), we aimed to extend and refine this framework for N,N -Dimethyltryptamine (DMT). In a randomised, placebo-controlled, double-blind, crossover study, 25 healthy participants received DMT (60mg)...

Inflammatory response to repeated subcutaneous esketamine in treatment-resistant depression: The role of baseline C-reactive protein.

Journal of Affective Disorders March 15, 2026 Patrícia Cavalcanti-Ribeiro, Lara Carvalho Araújo Melo De Souza, Vagner Deuel O de Tavares et al.

Treatment-resistant depression (TRD) remains a major clinical challenge, with inflammation increasingly implicated in its pathophysiology. C-reactive protein (CRP), an accessible biomarker, has emerged as a potential predictor of antidepressant response. While intravenous and intranasal ketamine have shown anti-inflammatory effects, evidence linking inflammation and clinical outcomes remains...

Safety, tolerability and subjective effects of vaporized N,N-Dimethyltryptamine: A randomized double-blind clinical trial.

European Neuropsychopharmacology June 17, 2025 Isabel Wießner, Marcelo Falchi-Carvalho, Sophie Laborde et al. 7 citations

Vaporized N,N-Dimethyltryptamine (DMT) has a short duration and simple application, prompting this technique as a new approach for psychedelics' clinical use. Building on our initial dose-ascending studies and addressing potential confounding effects of dosing order, this study is the first to evaluate inhaled DMT in a randomized, placebo-controlled, double-blind design. Given DMT's therapeutic...

DOI: 10.1016/j.euroneuro.2025.06.002 (opens in new tab) Full text (opens in new tab) Psychedelic therapy N,N-Dimethyltryptamine Placebo-controlled study Psychedelics +17

Rapid and sustained antidepressant effects of vaporized N,N-dimethyltryptamine: a phase 2a clinical trial in treatment-resistant depression.

Neuropsychopharmacology May 1, 2025 Marcelo Falchi-Carvalho, Fernanda Palhano-Fontes, Isabel Wießner et al. 35 citations

Depression affects over 185 million people worldwide, with approximately one-third classified as treatment-resistant depression (TRD). Current treatments, such as oral antidepressants, often take around 3 weeks to become effective, with no immediate anti-suicidal benefits. The field urgently needs innovative therapies that provide rapid relief. Psychedelics like psilocybin and ayahuasca have...

DOI: 10.1038/s41386-025-02091-6 (opens in new tab) Full text (opens in new tab) Mental health Depression treatment Psychedelic medicine Clinical research +1

The Antidepressant Effects of Vaporized N,N-Dimethyltryptamine: An Open-Label Pilot Trial in Treatment-Resistant Depression.

Psychedelic Medicine March 1, 2025 Marcelo Falchi-Carvalho, Handersson Barros, Raynara Bolcont et al. 16 citations

N,N-Dimethyltryptamine (DMT), a naturally occurring psychedelic tryptamine contained in the indigenous ayahuasca brew, has shown antidepressant effects. This open-label clinical trial investigates for the first time the efficacy of vaporized DMT in treatment-resistant depression (TRD). Six TRD patients participated in an open-label, fixed-order, dose-escalation study, receiving a lower (15 mg)...

Repeated subcutaneous esketamine on treatment-resistant depression: An open-label dose titration study.

Journal of Affective Disorders January 15, 2025 Fernanda Palhano-Fontes, Patrícia Cavalcanti-Ribeiro, Kaike Thiê da Costa Gonçalves et al. 7 citations

Ketamine has gained prominence as one of the most effective therapeutic options in unipolar treatment-resistant depression (TRD). However, most studies related to the antidepressant action of ketamine used intravenous (IV) or intranasal (IN) administration. The subcutaneous (SC) route of administration is a promising alternative, as it results in plasma levels comparable to IV, causes fewer...

Safety and tolerability of inhaled N,N-Dimethyltryptamine (BMND01 candidate): A phase I clinical trial.

European Neuropsychopharmacology March 1, 2024 Marcelo Falchi-Carvalho, Isabel Wießner, Sérgio Ruschi B Silva et al. 25 citations

Psychedelics are being increasingly examined for their therapeutic potential in mood disorders. While the acute effects of ayahuasca, psilocybin, and lysergic acid diethylamide (LSD) last over several hours, inhaled N,N-Dimethyltryptamine (DMT) effects last around 10 min, which might provide a cost- and time-effective alternative to the clinical application of oral psychedelics. We aimed at...

DOI: 10.1016/j.euroneuro.2023.12.006 (opens in new tab) Full text (opens in new tab) Entheogens Clinical trial Dose-response study Mood disorders +6

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,...