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A study to find out if low Vitamin D levels are linked to high bilirubin levels in the blood

Correlation between serum vitamin D levels and hyperbilirubinemia: A prospective study. - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/05/086253
Enrollment
207
Registered
2025-05-05
Start date
Unknown
Completion date
Unknown
Last updated
2025-05-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil

Sponsors

ICMR-STS project, Kasturba Medical College, Manipal, MAHE, Manipal
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: The eligibility criteria for this study comprise adults aged 18 to 65 years, irrespective of sex, who have completed serum Vitamin D testing and bilirubin level assessments conducted by the Department of Biochemistry. Furthermore, to establish correlations with diabetic patients, participants must have undergone HbA1c level testing. To enhance the analysis, select participants with available hemoglobin reports will also be evaluated to correlate findings with hemoglobin levels.

Exclusion criteria

Exclusion criteria: Individuals with chronic liver disease (excluding non-alcoholic fatty liver), chronic kidney disease, malignancies, those who are pregnant or lactating, as well as participants currently taking vitamin D supplements or antioxidants will be excluded from the study due to their potential confounding effects on serum levels.

Design outcomes

Primary

MeasureTime frame
Serum Vitamin D levels (ng/mL): The main variable of interest, assessed to determine the presence of Vitamin D deficiency. Serum Total and Direct Bilirubin levels (mg/dL): Used to evaluate the presence and severity of hyperbilirubinemia. Serum Malondialdehyde (MDA) levels: Measured as a biomarker of oxidative stress to assess the antioxidant role of Vitamin D in bilirubin metabolism.Timepoint: Baseline

Secondary

MeasureTime frame
Hemoglobin levels (g/dL): To evaluate the potential effect of Vitamin D deficiency on erythropoiesis. HbA1c levels (%): To assess the influence of glycemic control & diabetes on bilirubin & Vitamin D levels. Lipid profile parameters: Including total cholesterol, LDL, HDL, & triglycerides to examine metabolic associations of Vitamin D status. Liver function tests (LFTs): Including AST, ALT, alkaline phosphatase, & albumin to assess hepatic factors influencing bilirubin metabolism. Demographic variables: Age, gender, & body mass index (BMI) will be recorded to evaluate subgroup differences & potential confounding variables.Timepoint: Baseline

Countries

India

Contacts

Public ContactDr Krishnananda Prabhu

Kasturba Medical College, Manipal

krishnananda.prabhu@manipal.edu9844380157

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026