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Recruiting Phase 4 NCT06218030

NCT06218030 Adjunctive Treatment With L-methylfolate for Treatment-Resistant Generalized Anxiety Disorder: a Pilot Study

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Clinical Trial Summary
NCT ID NCT06218030
Status Recruiting
Phase Phase 4
Sponsor Queen's University
Condition Generalized Anxiety Disorder
Study Type INTERVENTIONAL
Enrollment 10 participants
Start Date 2024-10-22
Primary Completion 2026-04-01

Trial Parameters

Condition Generalized Anxiety Disorder
Sponsor Queen's University
Study Type INTERVENTIONAL
Phase Phase 4
Enrollment 10
Sex ALL
Min Age 18 Years
Max Age 65 Years
Start Date 2024-10-22
Completion 2026-04-01
Interventions
L-methylfolate

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Brief Summary

The goal of this feasibility study is to determine the tolerability and safety of add on treatment with L-methylfolate in patients with treatment-resistant generalized anxiety disorder (GAD). The primary objective is to monitor for side effects and other risks associated with the treatment. Secondary objectives are to compare the severity of symptoms, serum levels of folate, vitamin B12, C-reactive protein, homocysteine, tumor necrosis factor alpha and interleukin 6 before and after treatment. Participants will continue with their usual treatment for GAD and receive add on treatment with L-methylfolate 15 mg per day for 8 weeks. All participants will receive the same intervention.

Eligibility Criteria

Inclusion Criteria: * Adults. * Patients on a stable dose of an selective serotonin uptake inhibitors (SSRI) or serotonin and noradrenaline reuptake inhibitors (SNRI) for at least 8 weeks. * Treatment-resistant GAD, defined by lack of response to at least two drugs, from two different classes of drugs considered first-line or second-line for GAD according to the Canadian Clinical Practice Guidelines for the Management of Anxiety, Posttraumatic Stress and Obsessive-Compulsive Disorders (Katzman et al., 2014). Only trials lasting at least 8 weeks and with at least the minimum effective dose of the given medication will be considered failed trials. Exclusion Criteria: * Patients with moderate to severe major depressive disorder based on the Patient Health Questionnaire - Nine Item (PHQ-9) scale (score of 15 or above) at baseline. * Mini International Neuropsychiatric Interview version (MINI) 7.0 indicates moderate to high current suicidality or "suicide likely in near future" or current s

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