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Study on the effects of folic acid compared to placebo in reducing depression and suicidal behavior: A preliminary investigation

A double-blind randomized controlled trial of the feasibility and acceptability of folic acid supplementation in reducing depression and suicidal behaviour: A pilot study

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
SLCTR
Registry ID
SLCTR/2025/024
Enrollment
Unknown
Registered
2025-06-24
Start date
2025-10-01
Completion date
Unknown
Last updated
2026-08-03

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

Conditions

Depression

Interventions

Study settings: National Hospital Kandy, Teaching Hospital Peradeniya, Teaching Hospital Kurunegala, District General Hospital Matale 2. Method of randomization into study arms The assignment to tre

Sponsors

Prof Dewasmika Ariyasinghe,
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: . Males or females aged 18 years or over. · Diagnosed to have depression (diagnosed as per ICD-10 criteria for depression by a consultant psychiatrist or senior registrar in psychiatry) · On treatment in inpatient psychiatry units or being followed up in psychiatry clinics in the respective hospitals · Have experienced suicidal ideation, or one or more episodes of suicidal behaviour within the past year. (will be screened by trained research assistants, for suicidal ideation or suicidal behaviour in the previous year using C-SSRS, at the start of the study) · Fluent in spoken Sinhala or English

Exclusion criteria

Exclusion criteria: ·A person who meets any of the following criteria will be excluded from participation in this study: · ·Diagnosed to have bipolar depression. · Allergy to folic acid use in the past, · too severely depressed to participate in interview /give informed consent · currently undergoing folic acid supplementation or receiving high-dose folic acid treatment for deficiency. · Present with the following psychiatric comorbidities: schizophrenia or another primary psychotic disorder, dementia or a substance dependency. · Known history of significant side effects or allergy to folic acid use in the past. · Too severely depressed to participate in interview/give informed consent. · Currently undergoing folic acid supplementation or receiving high-dose folic acid treatment for deficiency.

Design outcomes

Primary

MeasureTime frame
The acceptability and feasibility of folic acid supplementation in the treatment of patients with depression will be assessed via 2 questionnaires: one for patients and another for healthcare providers. The participants’ questionnaire will assess the acceptability, side effects, and palatability of the new medication. The healthcare providers’ questionnaire will assess the acceptability, practicality, and feasibility of administering this intervention. [3 months, 6 months, 12 months]

Secondary

MeasureTime frame
The severity of depression using the Patient Health Questionnaire 9 (PHQ-9) [Baseline, 3 months, 6 months, 12 months] Functioning-level is measured by the World Health Organization Disability Assessment Schedule (WHODAS 2.0) [Baseline, 3 months, 6 months, 12 months] The suicidal ideation or suicidal behaviour using the Columbia-Suicide Severity Rating Scale (C-SSRS) [Baseline, 3 months, 6 months, 12 months] Adherence to medication using the Morisky Green Levine Medication Adherence Scale (MGLS) [3 months, 6 months, 12 months]

Countries

Sri Lanka

Contacts

Public ContactProf. Dewasmika Ariyasinghe

Professor in Psychiatry

info.folic@gmail.com081 2389445

Outcome results

None listed

Source: SLCTR (via WHO ICTRP) · Data processed: Aug 10, 2026