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CompletedNCT04898725Updated Aug 9, 2024

Effects of Vitamin D Supplementation on Depression and Inflammatory Markers

An interventional study of Vitamin D3 in Major Depression and Vitamin D Deficiency, sponsored by Mackay Memorial Hospital. Completed at 1 site in Taiwan. Open to participants aged 10 Years to 24 Years. Per ClinicalTrials.gov, last updated 2024-08-09.

Sponsored by Mackay Memorial Hospital · Not applicable, Interventional, and Health services research

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Dec 2020, registered May 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
142
Allocation
Randomized
Ages
10 Years to 24 Years
Sex
All
01

Study summary

The current study is designed as a prospective partially randomized patient preference (PRPP) trial and recruit psychiatric outpatients or inpatients. Participants who agree to receive randomization will be randomly assigned into a supplementation or placebo group, after stratification for pre-intervention vitamin D status (12-20 ng/mL or \<12 ng/mL) and depression status (HDRS-17 ≥ 17 or \< 17). Participants who decline randomization but agree to receive follow-up in the observational cohort choose their preferred method (either 4800 IU vitamin D3 per day, or usual care without supplementation). Severity of depression, any change of medication, and side effect will be assessed at baseline and at 2-week intervals for 8 weeks. Serum levels of 25(OH)D, C-Reactive protein (CRP) and 12 cytokines, anthropometrical measurements, dietary intake, physical activity and sun exposure will be assessed at baseline and post-intervention. Additionally, serum levels of 25(OH)D will be assessed at 4 weeks to ensure its safety level.

Read the detailed description

Investigators will conduct a partially randomized patient preference (PRPP) trial and recruit psychiatric outpatients or inpatients. Inclusion criteria are young people aged 10 to 24, fulfilling the DSM-V criteria of major depressive disorder (MDD) with scores of HDRS-17≥10, psychotropic medication have been kept unchanged for a month and will remain unchanged during intervention period, and serum 25-hydroxycholecalciferol (25-OH-D) levels lower than 20 ng/ml. Exclusion criteria are comorbid with organic mental disorders, alcohol or substance use disorders, schizophrenia, delusion disorder, bipolar disorder, autistic spectrum disorder, anorexia nervosa, and IQ less than 70; endocrine disorders including diabetes, thyroid and parathyroid disorder; serious neurological disorders including epilepsy, severe traumatic brain injury, and neurodegenerative conditions; liver disease, kidney disease, heart disease or other serious health conditions; use drug interfering with vitamin D metabolism.

Participants who agree to receive randomization will be randomly assigned into a supplementation or placebo group, after stratification for pre-intervention vitamin D status (12-20 ng/mL or \<12 ng/mL) and depression status (HDRS-17 ≥ 17 or \< 17). Supplementation arm will receive oral dose 4800 IU vitamin D3 per day (three soft capsules of 800 IU vitamin D, twice a day) and placebo arm will receive placebo every day (three soft capsules with identical appearance, twice a day) for 8 weeks. Both groups continue to receive standard psychiatric care by child psychiatrists. Randomization and allocation will be concealed from researchers, participants and treating physicians. Participants who decline randomization but agree to receive follow-up in the observational cohort choose their preferred method (either 4800 IU vitamin D3 per day, or usual care without supplementation). Severity of depression, any change of medication, and side effect will be assessed at baseline and at 2-week intervals for 8 weeks. Serum levels of 25(OH)D, CRP and 12 cytokines, anthropometrical measurements, dietary intake, physical activity and sun exposure will be assessed at baseline and post-intervention. Additionally, serum levels of 25(OH)D will be assessed at 4 weeks to ensure its safety level.

02

Conditions studied

03

In context

Vitamin D Deficiency

772 studies on the registry are indexed under Vitamin D Deficiency; 61 are open to participants now.

This study's enrollment of 142 is above the median of 77 across 564 interventional studies indexed under Vitamin D Deficiency.

Browse Vitamin D Deficiency studies →

Lead sponsor

Mackay Memorial Hospital is the lead sponsor of 118 studies on the registry; 28 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
10 Years to 24 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 1.patients who attend psychiatric outpatient clinics or who are admitted to the psychiatric inpatient ward at the above sites.
  • 2.clinical diagnosis of depression-related disorders and scores of HDRS-17 ≥ 10.
  • 3.psychotropics have been kept unchanged for at least a month.
  • 4.aged 10 to 24.
  • 5.serum 25-hydroxycholecalciferol (25-OH-D) levels lower than 20 ng/ml.

Exclusion criteria

Exclusion Criteria:

  • 1.endocrine disorders

    1. including diabetes
    2. thyroid
    3. parathyroid disorder.
  • 2.serious neurological disorders

    1. epilepsy
    2. severe traumatic brain injury
    3. neurodegenerative conditions
  • 3.liver disease
  • 4.kidney disease
  • 5.heart disease
  • 6.other serious health conditions.
  • 7.severe mental disorders

    1. Organic mental disorders
    2. Alcohol or substance use disorders active within 3 months
    3. Schizophrenia
    4. Delusional disorder
    5. Psychotic disorders not elsewhere classified.
    6. Bipolar disorder.
    7. Autistic spectrum disorder.
    8. Anorexia nervosa.
    9. Mental retardation with IQ less than 70.
    10. High violence or suicide risk.
  • 8.Patients use drugs or herbals interfering with vitamin D metabolisms

    1. phenobarbital
    2. phenytoin
    3. anti-tuberculosis drugs
    4. thiazide diuretics.
  • 9.Pregnant or expect to be pregnant during study participation.
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
142 participants (actual)

Study arms

  • Experimental
    Vit D Group (randomized)

    Subjects will be randomly assigned to receive a daily vitamin D supplementation (4800IU daily) for 8 weeks

    Dietary Supplement: Vitamin D3

  • No intervention
    Control Group (randomized)

    Subjects will be randomly assigned to receive a placebo for 8 weeks.

  • Experimental
    Preference Vit D Group (non-randomized)

    Subjects with a strong preference to receive a daily vitamin D supplementation (4800IU daily) for 8 weeks.

    Dietary Supplement: Vitamin D3

  • No intervention
    Preference no Vit D Group (non-randomized)

    Subjects with a strong preference to receive usual care (not receiving vitamin D supplements) for 8 weeks.

Interventions

  • Dietary supplementVitamin D3

    Vitamin D3 4800IU daily

06

What researchers measure

Primary outcomes

  1. Change of total score of 17-item Hamilton Depression Rating Scale (HDRS-17)

    17-item Hamilton Depression Rating Scale is an interview-based instrument for rating the overall levels of severity of the symptoms of depression and the response to treatment. Each item is rated from 0 to 4 or 0 to 2; the scores correspond to increases in severity. Total scores range from 0 to 52.

    Time frame: baseline and at 8 weeks (the end of intervention)

Secondary outcomes

  1. 17-item Hamilton Depression Rating Scale (HDRS-17)

    HDRS-17 is measured totally 5 times, at week 0, 2 weeks, 4 weeks, 6 weeks, 8 weeks. The change in total HDRS-17 score between baseline and the intermediate 2-week, 4-week, 6-week follow-ups were considered secondary outcomes measures.

    Time frame: change from baseline score at 8 weeks

  2. Response rate of 17-item Hamilton Depression Rating Scale (HDRS-17)

    Response rate is defined as a reduction in HDRS-17 total score of at least 50 percent relative to the beginning of the randomized phase (baseline).

    Time frame: at 2 weeks, 4 weeks, 6 weeks, 8 weeks

  3. Remission rate of 17-item Hamilton Depression Rating Scale (HDRS-17)

    Remission rate is defined as an absolute HDRS-17 total score of ≤ 7 at each follow-up assessment.

    Time frame: at week 2, 4, 6, 8 weeks

  4. End of intervention remission rate in17-item Hamilton Depression Rating Scale (HDRS-17)

    Remission rate is defined as an absolute HDRS-17 total score of ≤ 7 at the end of treatment (8 week after intervention).

    Time frame: at 8 weeks

  5. Change of total score of Beck Depression Inventory-Second Edition

    Beck Depression Inventory is a 21-item self-report measure, scored from 0 to 3 (range 0-63), and greater scores indicate severe depression symptoms.Beck Depression Inventory (BDI) is measured totally 5 times, at week 0, 2 weeks, 4 weeks, 6 weeks, 8 weeks. The change in total BDI score between baseline and each of follow-ups (2-week, 4-week, 6-week, 8-week follow-ups) were considered secondary outcomes measures.

    Time frame: change from baseline score at 8 weeks

  6. Significant change (mean±SD) in vitamin D status

    serum levels of 25(OH)D, units of measure is ng/mL

    Time frame: baseline and at 8 weeks

Other outcomes

  1. Change of total score of Generalized Anxiety Disorder Questionnaire

    Generalized Anxiety Disorder Questionnaire is a 7-item self-report measure, scored from 0 to 3 (range 0-21), and greater scores indicate severe anxiety symptoms.

    Time frame: baseline and at 8 weeks (the end of intervention)

  2. Significant change (mean±SD) in serum concentration of hs-CRP

    The serum concentration of hs-CRP (mg/L) will be measured at baseline and 8 weeks after intervention. Normal range is \<0.3 mg/L.

    Time frame: baseline and 8 weeks after intervention

  3. Significant change (mean±SD) in serum concentration of cytokine targets

    The serum concentration of cytokine targets (IL-1β, IL-2, IL-6, IL-12, IL-15, TNF-α, IFN-γ, IL-4, IL-5, IL-13, IL-10, IL-1Ra) (unit: pg/mL) will be measured at baseline and 8 weeks after intervention.

    Time frame: baseline and 8 weeks after intervention

07

Study locations

1 site
  • MacKay Memorial Hospital
    Taipei, Taiwan
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 9, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04898725
Lead sponsor
Mackay Memorial Hospital
Responsible party
Shen-Ing,Liu (Senior Attending Psychiatrist, Professor, Mackay Memorial Hospital) — Principal investigator
First posted
May 24, 2021
Start date
Dec 25, 2020
Primary completion
Jul 2, 2024
Completion
Jul 31, 2024
Last update
Aug 9, 2024

Study contacts

Shen-Ing Liu, PhD
principal investigator · Mackay Memorial Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2024. You cannot join it, but the record below documents what was studied.

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