Trial Outcomes & Findings for Impact of Vitamin D Therapies on Chronic Kidney Disease (NCT NCT01222234)

NCT ID: NCT01222234

Last Updated: 2016-05-16

Results Overview

Flow cytometry analysis of monocyte CD14, ACE, VDR, and Mac-1 expression

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

56 participants

Primary outcome timeframe

8 weeks of therapy

Results posted on

2016-05-16

Participant Flow

Participant milestones

Participant milestones
Measure
Group 1: Cholecalciferol
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. Cholecalciferol: Cholecalciferol tablet, 50,000 units twice a week
Group 2: Calcitriol
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. calcitriol: calcitriol 0.25 mcg every day
Group 3: Cholecalciferol
Patients in this arm have low vitamin D levels and normal kidney function. They will be put into group 3. Cholecalciferol: Cholecalciferol tablet, 50,000 units twice a week
Overall Study
STARTED
15
17
24
Overall Study
COMPLETED
15
15
22
Overall Study
NOT COMPLETED
0
2
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Impact of Vitamin D Therapies on Chronic Kidney Disease

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group 1: Cholecalciferol
n=15 Participants
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. Cholecalciferol: Cholecalciferol tablet, 50,000 units twice a week
Group 2: Calcitriol
n=17 Participants
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. calcitriol: calcitriol 0.25 mcg every day
Group 3: Cholecalciferol
n=24 Participants
Patients in this arm have low vitamin D levels and normal kidney function. They will be put into group 3. Cholecalciferol: Cholecalciferol tablet, 50,000 units twice a week
Total
n=56 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Age, Categorical
Between 18 and 65 years
9 Participants
n=5 Participants
11 Participants
n=7 Participants
20 Participants
n=5 Participants
40 Participants
n=4 Participants
Age, Categorical
>=65 years
6 Participants
n=5 Participants
6 Participants
n=7 Participants
4 Participants
n=5 Participants
16 Participants
n=4 Participants
Age, Continuous
60.1 years
STANDARD_DEVIATION 13.3 • n=5 Participants
59.8 years
STANDARD_DEVIATION 11.6 • n=7 Participants
48.5 years
STANDARD_DEVIATION 14.2 • n=5 Participants
56.1 years
STANDARD_DEVIATION 13.0 • n=4 Participants
Sex: Female, Male
Female
9 Participants
n=5 Participants
10 Participants
n=7 Participants
21 Participants
n=5 Participants
40 Participants
n=4 Participants
Sex: Female, Male
Male
6 Participants
n=5 Participants
7 Participants
n=7 Participants
3 Participants
n=5 Participants
16 Participants
n=4 Participants
Region of Enrollment
United States
15 participants
n=5 Participants
17 participants
n=7 Participants
24 participants
n=5 Participants
56 participants
n=4 Participants

PRIMARY outcome

Timeframe: 8 weeks of therapy

Population: The primary comparison for this outcome was between only CKD groups (groups 1 and 2); therefore data from the non-CKD group (group 3) was not analyzed for this outcome. Only 15 patients per group had data analyzed for this outcome of interest; thus, the number analyzed per group differs from the enrolled numbers.

Flow cytometry analysis of monocyte CD14, ACE, VDR, and Mac-1 expression

Outcome measures

Outcome measures
Measure
Group 1: Cholecalciferol - CKD
n=15 Participants
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. Cholecalciferol 50,000 IU twice weekly for 8 weeks
Group 2: Calcitriol - CKD
n=15 Participants
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. Calcitriol 0.25 mcg every day
Monocyte Protein Expression
ACE
1359 relative fluorescence units
Standard Deviation 347.2
1360 relative fluorescence units
Standard Deviation 290.8
Monocyte Protein Expression
VDR
2799 relative fluorescence units
Standard Deviation 1210
3468 relative fluorescence units
Standard Deviation 3123
Monocyte Protein Expression
Mac-1
14318 relative fluorescence units
Standard Deviation 4196.4
14278.5 relative fluorescence units
Standard Deviation 4891.3
Monocyte Protein Expression
CD14
34110 relative fluorescence units
Standard Deviation 9372
38540 relative fluorescence units
Standard Deviation 16880

PRIMARY outcome

Timeframe: 8 weeks of therapy

Population: The primary comparison for this outcome of interest was between subjects taking cholecalciferol, so the calcitriol group (group 2) was excluded from the analysis. Only 15 patients per group had data analyzed for this outcome of interest; thus, the number analyzed per group differs from the enrolled numbers.

Outcome measures

Outcome measures
Measure
Group 1: Cholecalciferol - CKD
n=15 Participants
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. Cholecalciferol 50,000 IU twice weekly for 8 weeks
Group 2: Calcitriol - CKD
n=15 Participants
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. Calcitriol 0.25 mcg every day
Change in 24,25(OH)2D Levels in CKD vs. Non-CKD Subjects Receiving Cholecalciferol
1.59 ng/ml
Standard Deviation 0.73
3.59 ng/ml
Standard Deviation 1.14

Adverse Events

Group 1: Cholecalciferol

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

Group 2: Calcitriol

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

Group 3: Cholecalciferol

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
Group 1: Cholecalciferol
n=15 participants at risk
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. Cholecalciferol: Cholecalciferol tablet, 50,000 units twice a week
Group 2: Calcitriol
n=17 participants at risk
Patients in this group have low vitamin D levels and Chronic Kidney Disease (CKD). Patients will be randomized to group 1 or group 2. calcitriol: calcitriol 0.25 mcg every day
Group 3: Cholecalciferol
n=24 participants at risk
Patients in this arm have low vitamin D levels and normal kidney function. They will be put into group 3. Cholecalciferol: Cholecalciferol tablet, 50,000 units twice a week
Gastrointestinal disorders
constipation
0.00%
0/15
5.9%
1/17 • Number of events 1
0.00%
0/24
Gastrointestinal disorders
diarrhea
0.00%
0/15
0.00%
0/17
4.2%
1/24 • Number of events 1

Additional Information

Dr. Jason Stubbs

University of Kansas Medical Center

Phone: 913-588-9252

Results disclosure agreements

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