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CompletedNCT05399251Updated Jun 1, 2022

Relationship Between Serum 1,25-dihydroxy Vitamin D and Markers of Bone Metabolism in Renal Dysfunction Patients

An observational study in Chronic Kidney Disease-Mineral and Bone Disorder, sponsored by Aga Khan University Hospital, Pakistan. Completed. Open to participants aged 20 Years to 70 Years. Per ClinicalTrials.gov, last updated 2022-06-01.

Sponsored by Aga Khan University Hospital, Pakistan · Observational

Study type
Observational
Model
Case-only
Time perspective
Cross-sectional
Enrollment
1,553
Ages
20 Years to 70 Years
Sex
All
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Study summary

This cross-sectional study was conducted, including those subjects tested for 1,25(OH)2D during Jan 2015-Dec 2021. Estimated glomerular filtration rate (eGFR) was calculated and subjects were classified into chronic kidney disease (CKD) stages. Associations between biochemical marker, calcium, phosphorus, magnesium, alkaline phosphatase, 1,25(OH)2D and CKD stages was determined.

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Conditions studied

  • Chronic Kidney Disease-Mineral and Bone Disorder

Keywords

  • renal dysfunction
  • bone metabolism marker
  • 1,25(OH)2 vitamin D
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In context

Chronic Kidney Disease-Mineral and Bone Disorder

57 studies on the registry are indexed under Chronic Kidney Disease-Mineral and Bone Disorder; 17 are open to participants now.

This study's enrollment of 1,553 is above the median of 174 across 28 observational studies indexed under Chronic Kidney Disease-Mineral and Bone Disorder.

Browse Chronic Kidney Disease-Mineral and Bone Disorder studies →

Lead sponsor

Aga Khan University Hospital, Pakistan is the lead sponsor of 32 studies on the registry; 5 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
20 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Laboratory data of patients tested for 1,25(OH)2D from January 2015 to December 2021 was retrieved from laboratory integrated systems (ILMS), and only the initial results for 1,25(OH)2D were included.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Data of serum 1,25(OH)2D available

Exclusion criteria

Exclusion Criteria:

  • Serum1,25(OH)2D is not available
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Study design

Observational model
Case-only
Time perspective
Cross-sectional
Enrollment
1,553 participants (actual)
Target follow-up
1 Year
Patient registry
Yes
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What researchers measure

Primary outcomes

  1. concentration of serum 1,25 dihydroxy vitamin D in U/L in five stages of chronic kidney disease

    In CKD, 1-alfa-hydroxylase activity in the kidneys is reduced, leading to decreases in the level of the activated form of vitamin D (1,25- dihydroxy vitamin D), resulting in secondary hyperparathyroidism and bone disease. This study aimed to determine the concentration of 1,25 dihydroxy vitamin D in different stages of CKD.

    Time frame: 7 year

  2. concentration of serum calcium in mg/dl in five stages of chronic kidney disease

    in renal tubules, 1,25- dihydroxy vitamin D increase reabsorption of calcium from renal filtrate and thus stabilize blood calcium levels. in CKD, with deterioration of kidney function, stage V, the levels of calcium drops resulting in hypocalcemia.

    Time frame: 7 years

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Study locations

No study locations are listed for this record.

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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2015 to primary completion in Dec 2021, 83 months.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 14, 2022
First posted
Jun 1, 2022
StartActual
Jan 1, 2015
Primary completionActual
Dec 30, 2021
CompletionActual
Dec 30, 2021
Last update
Jun 1, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 1, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05399251
Lead sponsor
Aga Khan University Hospital, Pakistan
Responsible party
Zaib Un Nisa Khan (PRINCIPAL INVESTIGATOR, Aga Khan University Hospital, Pakistan) — Principal investigator
First posted
Jun 1, 2022
Start date
Jan 1, 2015
Primary completion
Dec 30, 2021
Completion
Dec 30, 2021
Last update
Jun 1, 2022

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2022. You cannot join it, but the record below documents what was studied.

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