NCT05937789

Brief Summary

There are no clear international guidelines for dosing vitamin D based on deficiency severity. Therefore, a new clinical trial is needed to evaluate the benefits of early vitamin D supplementation in maintaining sufficient levels for critically ill patients. The investigators conducted a multicenter clinical trial in Taiwan focusing on vitamin D and critically ill patients. 240 patients with low calcidiol levels will be enrolled and be provided varying supplementation doses to maintain their serum calcidiol levels ≥ 30 ng/mL within 30 days of ICU admission. The serum levels of calcidiol and PTH will be measured on Day 0, Day 7, Day 14 and Day 30 before and after vitamin D supplementation. The results will serve as a valuable reference for intensivists when formulating appropriate vitamin D treatment strategy to maximize clinical benefits for critically ill patients.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
240

participants targeted

Target at P75+ for not_applicable

Timeline
7mo left

Started Jan 2024

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress82%
Jan 2024Dec 2026

First Submitted

Initial submission to the registry

June 30, 2023

Completed
10 days until next milestone

First Posted

Study publicly available on registry

July 10, 2023

Completed
7 months until next milestone

Study Start

First participant enrolled

January 22, 2024

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

August 16, 2024

Status Verified

July 1, 2024

Enrollment Period

2.4 years

First QC Date

June 30, 2023

Last Update Submit

August 14, 2024

Conditions

Keywords

vitamin Dcalcidiol levelscritically ill

Outcome Measures

Primary Outcomes (1)

  • 30-day mortality rate

    30-day mortality rate after intervention with the study samples.

    30 days

Secondary Outcomes (7)

  • 30-day mortality rate of patients who survives >7 days

    30 days

  • Length of ICU stay for surviving patients

    30 days

  • Length of hospital stay for surviving patients

    30 days

  • 30-day mortality based on serum 25(OH)D levels on day 7

    30 days

  • 30-day mortality based on serum 25(OH)D levels on day 30

    30 days

  • +2 more secondary outcomes

Study Arms (6)

Control1

PLACEBO COMPARATOR

Participants with serum 25(OH)D levels of 15-19.9 ng/mL, receiving 40 cc. medium-chain triglyceride (MCT) supplement.

Dietary Supplement: Medium Chain Triglycerides (MCT)

Control2

PLACEBO COMPARATOR

Participants with serum 25(OH)D levels of 12-14.9 ng/mL, receiving 50 cc. MCT supplement.

Dietary Supplement: Medium Chain Triglycerides (MCT)

Control3

PLACEBO COMPARATOR

Participants with serum 25(OH)D levels below 12 ng/mL, receiving 60 cc. MCT supplement.

Dietary Supplement: Medium Chain Triglycerides (MCT)

Vitamin D1

EXPERIMENTAL

Participants with serum 25(OH)D levels of 15-19.9 ng/mL, receiving vitamin D3 of 576,000 IU supplement

Dietary Supplement: Vitamin D3

Vitamin D2

EXPERIMENTAL

Participants with serum 25(OH)D levels of 12-14.9 ng/mL, receiving vitamin D3 of 720,000 IU supplement

Dietary Supplement: Vitamin D3

Vitamin D3

EXPERIMENTAL

Participants with serum 25(OH)D levels below 12 ng/mL, receiving vitamin D3 of 864,000 IU supplement

Dietary Supplement: Vitamin D3

Interventions

Vitamin D3DIETARY_SUPPLEMENT

Dose of vitamin D3 depends on participant's serum 25(OH)D levels, with one sample bottle contains 72,000 IU of vitamin D3; Intervention starts on ICU day 3 with a frequency of 1 ampule every 3 hours and is completed within the following 48 hours

Vitamin D1Vitamin D2Vitamin D3

Dose of MCT depends on participant's serum 25(OH)D levels, with one sample bottle contains 5 cc. of MCT; Intervention starts on ICU day 3 with a frequency of 1 ampule every 3 hours and is completed within the following 48 hours

Control1Control2Control3

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥18-year-old critically ill patient.
  • ICU admission \< 24 hours.
  • Baseline 25(OH)D levels within 24 hours of ICU admission \< 20 ng/mL.
  • Expected ICU length of stay ≥ 72 hours.

You may not qualify if:

  • Hypercalcemia (ie. total serum calcium levels \> 2.6 mmol/L).
  • Disorders affecting serum 25(OH)D levels, calcium metabolism, or bone metabolism (eg, parathyroid disease, rickets, or severe cirrhosis \[Child C\]).
  • Having received high-dose vitamin D3 therapy (ie. \> 2,000 IU daily or a single dose of ≥ 10,000 IU) within the past four weeks.
  • Active COVID-19 at ICU admission.
  • Organ transplant.
  • Having had tuberculosis, sarcoidosis or kidney stones within the past year.
  • Having renal dialysis, continuous kidney replacement therapy (CKRT), acute kidney injury (AKI).
  • Having ICU admission within the past three months.
  • Non-native-speaking patients and their families
  • Pregnant women.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Taiwan University Hospital

Taipei, 100, Taiwan

RECRUITING

MeSH Terms

Conditions

Vitamin D DeficiencyCritical Illness

Interventions

Cholecalciferol

Condition Hierarchy (Ancestors)

AvitaminosisDeficiency DiseasesMalnutritionNutrition DisordersNutritional and Metabolic DiseasesDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipids

Central Study Contacts

Yin Yi Han, doctor

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 30, 2023

First Posted

July 10, 2023

Study Start

January 22, 2024

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

August 16, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations