Skip to content

Treatment of Depression using Light-based Brain Stimulation

Photobiomodulation in Treatment-Resistant Depression

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-4qfh2dk
Enrollment
Unknown
Registered
2026-01-28
Start date
2024-10-01
Completion date
Unknown
Last updated
2026-02-02

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

This is an open-label, non-controlled pilot clinical trial with a single intervention group. A total of 30 adult participants aged between 18 and 65 years, diagnosed with treatment-resistant depressio

Sponsors

Faculdade de Ciências Médicas da Universidade de Pernambuco
Lead Sponsor
Faculdade de Ciências Médicas da Universidade de Pernambuco
Collaborator

Eligibility

Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Adults of both sexes; age between 18 and 65 years; diagnosis of major depressive disorder; failure to respond to at least two adequate antidepressant treatments; baseline Montgomery-Åsberg Depression Rating Scale score greater than or equal to twenty, indicating moderate depression

Exclusion criteria

Exclusion criteria: Diagnosis of bipolar disorder; presence of psychotic symptoms in the current depressive episode; pregnant or breastfeeding individuals; use of neuromodulation treatments within the past twelve months, including transcranial direct current stimulation, transcranial magnetic stimulation, or electroconvulsive therapy

Design outcomes

Primary

MeasureTime frame
It is expected to observe treatment response in patients with treatment-resistant depression, characterized by a clinically meaningful reduction in depressive symptoms, assessed using the Montgomery-Åsberg Depression Rating Scale (MADRS), based on the identification of a reduction of at least 50% in MADRS scores from baseline to the end of four weeks of transcranial photobiomodulation treatment.

Secondary

MeasureTime frame
It is expected to identify clinical remission rates after treatment, assessed using the Montgomery-Åsberg Depression Rating Scale (MADRS), based on the observation of scores below 10 points at the end of four weeks of transcranial photobiomodulation intervention.;It is expected to evaluate the maintenance of treatment response and clinical remission during follow-up, assessed using the Montgomery-Åsberg Depression Rating Scale (MADRS), based on the observation of sustained =50% reduction in MADRS scores and/or scores below 10 points at weeks 4, 8, and 12 after treatment completion.;It is expected to observe a reduction in self-reported depressive symptoms, assessed using the Quick Inventory of Depressive Symptomatology – Self-Report 16 items (QIDS-SR16), based on the identification of decreased scores from baseline to the end of the four-week intervention period.;It is expected to identify global clinical improvement in participants after treatment, assessed using the Clinical Global Impression (CGI), based on the observation of reduced severity scores and improved global clinical impression scores from baseline to the end of the intervention.;It is expected to evaluate the tolerability and safety of transcranial photobiomodulation treatment, assessed through systematic recording of adverse events, based on the observation of the frequency, intensity, and severity of reported events during the intervention and follow-up periods.

Countries

Brazil

Contacts

Public ContactDennison Monteiro

Instituto Monteiro de Neuromodulação

dennisonmonteiropsiq@gmail.com+5581998270865

Outcome results

None listed

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