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Effects of subcutaneous ketamine on depression

Effects of subcutaneous ketamine on treatment resistant depression

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
REBEC
Registry ID
RBR-1072m6nv
Enrollment
Unknown
Registered
2021-05-17
Start date
2021-07-15
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Depressive Disorder, Treatment-Resistant

Interventions

Experimental group: 40 patients with treatment-resistant depression will receive ketamine (in the form of dextrocetamine) subcutaneously once a week for 8 weeks, using an open design. The first sessio
E02.319

Sponsors

Hospital Universitário Onofre Lopes
Lead Sponsor
Hospital Universitário Onofre Lopes
Collaborator

Eligibility

Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Patients in current severe depressive episode, occurring for at least 4 weeks, and who have already used at least two antidepressant drugs, in an appropriate dose and duration; age between 18 and 45 years old.

Exclusion criteria

Exclusion criteria: uncontrolled hypertension; congestive heart failure or other evidence of impaired cardiac status; COPD; severe obesity; increased intracranial or cerebrospinal pressure; pregnancy; hyperthyroidism; adverse response to ketamine; present or past psychotic symptoms; dissociative identity disorder; autism spectrum disorder; prodromal symptoms of schizophrenia.

Design outcomes

Primary

MeasureTime frame
To evaluate the average change in the total score of the Montgomery-Asberg depression rating scale between baseline and day 7 (one week) after the first infusion.

Secondary

MeasureTime frame
To evaluate change in the total score of the Montgomery-Asberg depression rating between the baseline and days 1 and 2 after the session;;To evaluate changes in self-applied depression and suicide scales;To evaluate the relationship between the Mystical Experience Questionnaire and the 5 Altered States of Consciousness Rating Scale and changes in symptoms of depression;To evaluate the aberrant salience during the acute effects of ketamine and the relationship between changes in aberrant salience and changes in symptoms of depression;To evaluate the relationship between changes in salivary cortisol levels and biochemical markers and symptoms of depression ;To evaluate changes in sleep and relationship with changes in symptoms of depression;To evaluate changes in rumination processes and the relationship with depression symptoms

Countries

Brazil

Contacts

Public ContactDraulio de Araujo
draulio@neuro.ufrn.br+55-84-32154592

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Feb 7, 2026