Trial Outcomes & Findings for Effect of Vitamin D Supplementation on Inflammation and Cardiometabolic Risk Factors in Obese Adolescents (NCT NCT01217840)

NCT ID: NCT01217840

Last Updated: 2017-11-29

Results Overview

Primary outcome is serum 25OH vitamin D concentrations

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

40 participants

Primary outcome timeframe

Baseline; Week 24

Results posted on

2017-11-29

Participant Flow

Participant milestones

Participant milestones
Measure
Vitamin D
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Overall Study
STARTED
20
20
Overall Study
COMPLETED
14
17
Overall Study
NOT COMPLETED
6
3

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Effect of Vitamin D Supplementation on Inflammation and Cardiometabolic Risk Factors in Obese Adolescents

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Vitamin D
n=20 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=20 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Total
n=40 Participants
Total of all reporting groups
Age, Continuous
15.1 years
n=5 Participants
13.6 years
n=7 Participants
14.35 years
n=5 Participants
Sex: Female, Male
Female
12 Participants
n=5 Participants
14 Participants
n=7 Participants
26 Participants
n=5 Participants
Sex: Female, Male
Male
8 Participants
n=5 Participants
6 Participants
n=7 Participants
14 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants
n=5 Participants
8 Participants
n=7 Participants
20 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
8 Participants
n=5 Participants
12 Participants
n=7 Participants
20 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
20 participants
n=5 Participants
20 participants
n=7 Participants
40 participants
n=5 Participants
BMI
36 kg/m^2
n=5 Participants
31 kg/m^2
n=7 Participants
33.22 kg/m^2
n=5 Participants
25OH vitamin D
19.4 ng/mL
n=5 Participants
24.2 ng/mL
n=7 Participants
21.8 ng/mL
n=5 Participants

PRIMARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Primary outcome is serum 25OH vitamin D concentrations

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
25OH Vitamin D
Baseline
19.6 ng/mL
Standard Error 1.4
25.8 ng/mL
Standard Error 2.6
25OH Vitamin D
Week 24
20.1 ng/mL
Standard Error 0.9
24.6 ng/mL
Standard Error 2.0

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Triglycerides at Baseline and Week 24
Baseline
106 mg/dL
Standard Error 20
99 mg/dL
Standard Error 13
Triglycerides at Baseline and Week 24
Week 24
114 mg/dL
Standard Error 19
99 mg/dL
Standard Error 11

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
High-density Lipoprotein (HDL) at Baseline and Week 24
Baseline
41 mg/dL
Standard Error 3
46 mg/dL
Standard Error 3
High-density Lipoprotein (HDL) at Baseline and Week 24
Week 24
41 mg/dL
Standard Error 2
47 mg/dL
Standard Error 3

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

HbgA1c is a test to measure of the glucose (blood sugar) level over the past 2-3 months.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Hemoglobin A1C (HgbA1c) at Baseline and Week 24
Baseline
5.4 Percentage of glycosylated hemoglobin
Standard Error 0.1
5.3 Percentage of glycosylated hemoglobin
Standard Error 0.1
Hemoglobin A1C (HgbA1c) at Baseline and Week 24
Week 24
5.4 Percentage of glycosylated hemoglobin
Standard Error 0.1
5.3 Percentage of glycosylated hemoglobin
Standard Error 0.1

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Interleukin-6 (IL-6) at Baseline and Week 24
Baseline
1.0 pg/mL
Interval 0.6 to 1.3
0.7 pg/mL
Interval 0.4 to 1.3
Interleukin-6 (IL-6) at Baseline and Week 24
Week 24
1.0 pg/mL
Interval 0.7 to 1.7
0.7 pg/mL
Interval 0.4 to 1.2

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Interleukin-10 (IL-10) at Baseline and Week 24
Baseline
1.7 pg/mL
Interval 0.8 to 2.2
2.0 pg/mL
Interval 0.8 to 4.6
Interleukin-10 (IL-10) at Baseline and Week 24
Week 24
1.7 pg/mL
Interval 0.7 to 4.1
2.3 pg/mL
Interval 1.2 to 4.6

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Tumor Necrosis Factor-alpha (TNF-α) at Baseline and Week 24
Baseline
6.0 pg/mL
Interval 4.9 to 8.7
7.2 pg/mL
Interval 6.4 to 7.7
Tumor Necrosis Factor-alpha (TNF-α) at Baseline and Week 24
Week 24
6.9 pg/mL
Interval 5.5 to 8.0
7.5 pg/mL
Interval 6.5 to 8.2

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Outcome was assessed using high-sensitivity C-reactive protein (hs-CRP) test.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
C-reactive Protein (CRP) at Baseline and Week 24
Baseline
4.0 mg/L
Standard Error 1.0
2.2 mg/L
Standard Error 0.5
C-reactive Protein (CRP) at Baseline and Week 24
Week 24
4.3 mg/L
Standard Error 0.9
2.3 mg/L
Standard Error 0.6

SECONDARY outcome

Timeframe: Baseline; Week 24

Population: Patients who completed the study were analyzed.

Outcome measures

Outcome measures
Measure
Vitamin D
n=14 Participants
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=17 Participants
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Adiponectin at Baseline and Week 24
Baseline
4.8 pg/mL
Interval 3.4 to 6.7
7.2 pg/mL
Interval 3.6 to 8.8
Adiponectin at Baseline and Week 24
Week 24
5.9 pg/mL
Interval 3.6 to 8.9
7.3 pg/mL
Interval 4.3 to 11.2

Adverse Events

Vitamin D

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Vitamin D
n=20 participants at risk
Subjects were assigned to receive two observed doses of vitamin D2 (150,000 IU ergocalciferol, Barr Laboratories and Winthrop (Sanofi-Aventis)), given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Intervention: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Drisdol (Ergocalciferol) Vitamin D2: Ergocalciferol 150,000 IU every 12 weeks for total of 24 weeks.
Placebo
n=20 participants at risk
Subjects were assigned to receive two observed doses of placebo, given at baseline and 12 weeks. Capsules were packaged by the hospital's clinical trial pharmacist and were administered by study staff blinded to group assignments. Interventions: Height, weight, and BMI were obtained at baseline, 12 weeks and 24 weeks Placebo: Placebo pill - 3 pills every 12 weeks for total of 24 weeks
Endocrine disorders
Hypercalcemia
0.00%
0/20 • 24 weeks
5.0%
1/20 • 24 weeks

Additional Information

Sejal Shah MD

Stanford University

Phone: 6507211811

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place