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ll-37 antimicrobial peptide other 2009-12 ClinicalTrials

Withdrawn Study Explored Vitamin D's Link to Immune Protein in Kidney Disease

hCAP18 Levels and Vitamin D Deficiency in Chronic Kidney Disease

Background

The human immune system relies on various proteins to combat infections, one of which is hCAP18 (also known as LL-37 or cathelicidin). This protein is believed to play a crucial role in the body's defense mechanisms. Emerging research suggests that vitamin D may be essential for the optimal production of hCAP18, particularly in vulnerable populations. This study aimed to investigate how two different forms of vitamin D supplementation might influence hCAP18 levels in individuals suffering from Chronic Kidney Disease (CKD) and Vitamin D Deficiency.

Results

This study was unfortunately WITHDRAWN before completion (NCT ID: NCT01026363, completed: 2014-12), meaning no actual results or data were ever collected or reported. The researchers intended to determine if supplementation with either Ergocalciferol or Calcitriol could lead to a significant increase in hCAP18 levels in vitamin D deficient patients with Chronic Kidney Disease. They aimed to quantify any changes in this immune protein and compare the effectiveness between the two vitamin D forms. > As the study was WITHDRAWN, there are no specific findings, p-values, percentages, or fold-changes available to report regarding the impact of vitamin D on hCAP18 levels from this particular trial.

Why It Matters

Understanding the relationship between vitamin D, hCAP18, and Chronic Kidney Disease is critical, as CKD patients often have compromised immune systems and are prone to infections. If successful, this research could have identified specific vitamin D formulations capable of boosting innate immunity. Such findings could potentially lead to new therapeutic strategies for improving immune function and reducing infection risk in CKD patients. Future studies are still needed to explore this vital connection, potentially moving towards Phase II or human trials with reported outcomes.


ll-37 antimicrobial peptide cathelicidin
Source: clinicaltrials:NCT01026363 · Ingested 2026-04-07 · Digest: gemini-2.5-flash