Ignite Creation Date:
2025-12-25 @ 5:09 AM
Ignite Modification Date:
2026-02-01 @ 4:56 AM
Study NCT ID:
NCT03046927
Status:
COMPLETED
Last Update Posted:
2024-07-10
First Post:
2017-02-01
Is NOT Gene Therapy:
True
Has Adverse Events:
True
Brief Title:
Vitamin D and Residual Beta-Cell Function in Type 1 Diabetes
Sponsor:
Benjamin U. Nwosu, MD
Organization:
Study Overview
Official Title:
Vitamin D and Residual Beta-Cell Function in Type 1 Diabetes
Status:
COMPLETED
Status Verified Date:
2024-06
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
PCR
Brief Summary:
This project is designed to study the role of vitamin D supplementation on the honeymoon phase of type 1 diabetes in children who are on standardized insulin treatment. The results could lead to significant changes in the approach to the early phase of type 1 diabetes with a strong emphasis on prolonging the honeymoon phase by using vitamin D and maintaining these patients on a standardized insulin regimen. The overall goal is to reduce the long-term complications of type 1 diabetes.
Detailed Description:
Prolonging the duration of the partial clinical remission (PCR), or 'honeymoon' phase, of type 1 diabetes (T1D) improves glycemic control and reduces long-term complications. Recent studies suggest the exciting possibility that vitamin D supplementation, a safe and easy-to-implement therapy in children, may lengthen PCR and increase residual beta cell function (RBCF).
However, existing studies employed a suboptimal vitamin D dose or lacked a standardized insulin treatment protocol, precluding solid conclusions and preventing the field from moving forward with translation to clinical practice. This trial's rationale is to securely establish the effect of an adequate dose of vitamin D on PCR and RBCF.
We hypothesize that vitamin D will increase RBCF and prolong PCR. The primary aim is to determine the effect of adjunctive vitamin D on RBCF and PCR in youth with T1D maintained on a standardized insulin protocol. We propose a 12-month randomized, double-blind, placebo-controlled, parallel design trial of ergocalciferol vs. placebo in 40 subjects of 10-21 years with newly-diagnosed T1D. The primary outcome is the change over time in stimulated C-peptide (a measure of RBCF). Secondary outcomes include change over time in insulin-dose-adjusted-hemoglobin-A1c (HbA1c) (IDAA1C; a measure of PCR), HbA1c, and total daily dose of insulin. Mechanistic studies will explore whether beneficial effects of vitamin D are associated with increased GLP-1 levels or decreased inflammatory markers, and whether response to vitamin D is impacted by T1D-risk polymorphisms. If our hypotheses are true, these findings may completely alter the approach to the early management of T1D, with strong emphasis on prolonging the honeymoon phase using a readily available and easily affordable vitamin D while maintaining these patients on a standardized insulin treatment regimen.
However, existing studies employed a suboptimal vitamin D dose or lacked a standardized insulin treatment protocol, precluding solid conclusions and preventing the field from moving forward with translation to clinical practice. This trial's rationale is to securely establish the effect of an adequate dose of vitamin D on PCR and RBCF.
We hypothesize that vitamin D will increase RBCF and prolong PCR. The primary aim is to determine the effect of adjunctive vitamin D on RBCF and PCR in youth with T1D maintained on a standardized insulin protocol. We propose a 12-month randomized, double-blind, placebo-controlled, parallel design trial of ergocalciferol vs. placebo in 40 subjects of 10-21 years with newly-diagnosed T1D. The primary outcome is the change over time in stimulated C-peptide (a measure of RBCF). Secondary outcomes include change over time in insulin-dose-adjusted-hemoglobin-A1c (HbA1c) (IDAA1C; a measure of PCR), HbA1c, and total daily dose of insulin. Mechanistic studies will explore whether beneficial effects of vitamin D are associated with increased GLP-1 levels or decreased inflammatory markers, and whether response to vitamin D is impacted by T1D-risk polymorphisms. If our hypotheses are true, these findings may completely alter the approach to the early management of T1D, with strong emphasis on prolonging the honeymoon phase using a readily available and easily affordable vitamin D while maintaining these patients on a standardized insulin treatment regimen.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
True
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
False
Is an FDA AA801 Violation?:
Secondary ID Infos
| Secondary ID | Type | Domain | Link | View |
|---|---|---|---|---|
| 1R21DK113353 | NIH | None | https://reporter.nih.gov/quic… | View |