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Diabetic Kidney DiseaseNCT05298163

The Effects of Calcitriol on Biomarkers in Diabetic Kidney Disease Patients

A study testing Calcitriol capsules in people with Diabetic Kidney Disease, run by Universitas Indonesia at 1 site in Indonesia.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Diabetic Kidney Disease (DKD) is a complication that occurs due to poor glycemic control over a long period. The decrease or loss of podocytes is an important index in determining the degree of glomerular damage. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Diabetic Kidney Disease
What is being tested?
Calcitriol capsules
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
120 participants
Where
1 siteIndonesia
Study dates
Apr 2022to Dec 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Controlled type 2 diabetes mellitus with HbA1C at least <8% and albuminuria (UACR>30 mg/mmol)
  • Estimated Glomerular Filtration Rate (eGFR) >45 ml/min/1.73 m2
  • Agree to participate in the research

Who cannot join

  • Uncontrolled hypertension with routine Angiotensin-converting-enzyme inhibitors (ACEi) or Angiotensin II receptor blockers (ARBs) treatment
  • Hypercalcemia (total serum Ca level >10/5 mg/dL)
  • Hyperphosphatemia (total serum phosphate level >5 mg/dL)
  • Hypersensitivity to calcitriol
  • Suffering from other diseases that cause proteinuria
  • Acute diseases
  • Smoker or previous smoking history
  • Taking medications or suplements that can affect calcitriol metabolism (thiazide, digoxin, anti-convulsant)

Trial locations and contacts

1 site in 1 country.

Pringgodigdo Nugroho, MD contact

+628179822504

pringgodigdo.nugroho@ui.ac.id

Indonesia1 site
  • Dr. Cipto Mangunkusumo Hospital

    Jakarta Pusat, DKI Jakarta, 10430

    Pringgodigdo Nugroho, MD, +628179822504, pringgodigdo.nugroho@ui.ac.id

    Pringgodigdo Nugroho, MD

Other trials in Indonesia

About this study

Official title: Effects of Calcitriol on Podocytes in Diabetic Kidney Disease Patients: Assessment of Urine Podocin, Urine Nephrin, Urine Interleukin-6, Urine KIM-1, Plasma Renin, and Albuminuria

Diabetic Kidney Disease (DKD) is a complication that occurs due to poor glycemic control over a long period. The decrease or loss of podocytes is an important index in determining the degree of glomerular damage. Previous studies in patients with DKD reported that vitamin D administration can improve their renal function through several mechanisms. However, there is still little evidence available regarding the effects of calcitriol on biomarkers of DKD. This trial is a double-blind randomized controlled trial to assess the effect of calcitriol in DKD patients through several biomarkers which reflect pathomechanism in DKD. Those biomarkers include urinary podocin, urinary nephrin, urinary KIM-1, urinary IL-6, plasma renin, and albuminuria.

The primary outcome is any improvement on podocyte markers, tubular markers, kidney inflammation parameters, plasma renin, and albuminuria between calcitriol and placebo groups. Secondary outcomes include the relation between each marker and the side effects of intervention therapy.

Read the detailed description

Diabetic Kidney Disease (DKD) is a complication that occurs due to poor glycemic control over a long period. The decrease or loss of podocytes is an important index in determining the degree of glomerular damage. Albuminuria and estimated glomerular filtration rate (eGFR) are currently used as the marker of DKD. However, these markers may not directly measure renal tissue injury. Thus, investigating novel biomarkers, particularly podocyte-associated biomarkers, is needed to predict DKD. Previous studies in patients with DKD reported that vitamin D administration can improve their renal function. of the various types of vitamin D, there is still little evidence available regarding the effects of calcitriol on biomarkers of DKD. Therefore, this study aimed to determine the effect of calcitriol on podocyte damage markers, tubular injury markers, kidney inflammation parameter, plasma renin, dan albuminuria in DKD patients.

This study is a double-blind randomized controlled clinical trial to assess the effect of calcitriol in DKD patients through several markers including albuminuria. Podocyte damage is characterized by urinary podocin and urinary nephrin, tubular marker injury is characterized by urinary KIM-1, kidney inflammation is represented by urinary IL-6, hemodynamic is represented by plasma renin.

The primary outcome is any improvement on those markers between calcitriol and placebo groups. And the secondary outcomes include the relation between each marker and the side effects of intervention therapy.

Being tested
Calcitriol capsules, Placebo
Keywords
Diabetic Kidney Disease, Podocin, Nephrin, Calcitriol, Tubular injury, Podocyte injury
Medical subject headings
Diabetic Nephropathies

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Calcitriol capsulesDrug

    Also called Oscal

    Calcitriol under the name of Oscal, 0.25 mcg/day (minimum dose) will be given for 6 months, starting at the day of the time when inclusion criteria have been met.

  • PlaceboDrug

    One placebo capsule matching the active drug will be given per day for 6 months, starting at the day of the time when inclusion criteria have been met

Study groups in NCT05298163
Study groupRoleWhat they receive
Intervention GroupExperimentalDrug: Calcitriol The intervention group will be given calcitriol at a dose of 0.25 mcg/day for six months in the form of capsules that have been marked and numbered. The drugs will be taken through the RSCM pharmacy once a month during visit and the allocation will be given using drug labels that are sealed and packaged identically.
Receives: Drug: Calcitriol capsules
Placebo GroupActive comparatorDrug: Placebo oral The placebo drug will be given for six months in the form of capsules that have been marked and numbered. The drugs will be taken through the RSCM pharmacy once a month during visit and the allocation will be given using drug labels that are sealed and packaged identically.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Urinary podocin

    Marker of podocyte injury, will be measured before, during, and after treatment

    Measured: 6 months

  2. Urinary nephrin

    Marker of podocyte injury, will be measured before, during, and after treatment

    Measured: 6 months

  3. Urinary KIM-1

    Marker of tubular injury, will be measured before, during, and after treatment

    Measured: 6 months

  4. Urinary IL-6

    Marker of kidney inflammation, will be measured before, during, and after treatment

    Measured: 6 months

  5. Plasma renin

    Marker of hemodynamic pathway, will be measured before, during, and after treatment

    Measured: 6 months

  6. Albuminuria

    Marker of glomerular damage, will be measured before, during, and after treatment

    Measured: 6 months

Secondary outcomes (1)
  1. Calcium level

    Will be measured monthly

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Mar 2022
  2. Study startApr 2022 (estimated)
  3. Primary completionOct 2022 (estimated)
  4. Study completionDec 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05298163
Sponsor's protocol ID
KET-176/UN2.F1/ETIK/2022
Status last verified
Mar 2022
First submitted
17 Mar 2022
Last updated
6 Apr 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Lin YC, Chang YH, Yang SY, Wu KD, Chu TS. Update of pathophysiology and management of diabetic kidney disease. J Formos Med Assoc. 2018 Aug;117(8):662-675. doi: 10.1016/j.jfma.2018.02.007. Epub 2018 Mar 2.

    PubMed 29486908
  • Gheith O, Farouk N, Nampoory N, Halim MA, Al-Otaibi T. Diabetic kidney disease: world wide difference of prevalence and risk factors. J Nephropharmacol. 2015 Oct 9;5(1):49-56. eCollection 2016.

    PubMed 28197499
  • Zylka A, Dumnicka P, Kusnierz-Cabala B, Gala-Bladzinska A, Ceranowicz P, Kucharz J, Zabek-Adamska A, Maziarz B, Drozdz R, Kuzniewski M. Markers of Glomerular and Tubular Damage in the Early Stage of Kidney Disease in Type 2 Diabetic Patients. Mediators Inflamm. 2018 Aug 9;2018:7659243. doi: 10.1155/2018/7659243. eCollection 2018.

    PubMed 30158836
  • Kravets I, Mallipattu SK. The Role of Podocytes and Podocyte-Associated Biomarkers in Diagnosis and Treatment of Diabetic Kidney Disease. J Endocr Soc. 2020 Mar 5;4(4):bvaa029. doi: 10.1210/jendso/bvaa029. eCollection 2020 Apr 1.

    PubMed 32232184
  • Garg P. A Review of Podocyte Biology. Am J Nephrol. 2018;47 Suppl 1:3-13. doi: 10.1159/000481633. Epub 2018 May 31.

    PubMed 29852492
  • Sekulic M, Pichler Sekulic S. A compendium of urinary biomarkers indicative of glomerular podocytopathy. Patholog Res Int. 2013;2013:782395. doi: 10.1155/2013/782395. Epub 2013 Nov 13.

    PubMed 24327929
  • Kostovska I, Tosheska-Trajkovska K, Topuzovska S, Cekovska S, Spasovski G, Kostovski O, Labudovic D. Urinary nephrin is earlier, more sensitive and specific marker of diabetic nephropathy than microalbuminuria. J Med Biochem. 2020 Jan 10;39(1):83-90. doi: 10.2478/jomb-2019-0026.

    PubMed 32549781
  • Jim B, Ghanta M, Qipo A, Fan Y, Chuang PY, Cohen HW, Abadi M, Thomas DB, He JC. Dysregulated nephrin in diabetic nephropathy of type 2 diabetes: a cross sectional study. PLoS One. 2012;7(5):e36041. doi: 10.1371/journal.pone.0036041. Epub 2012 May 17.

    PubMed 22615747
  • Martin CE, Jones N. Nephrin Signaling in the Podocyte: An Updated View of Signal Regulation at the Slit Diaphragm and Beyond. Front Endocrinol (Lausanne). 2018 Jun 5;9:302. doi: 10.3389/fendo.2018.00302. eCollection 2018.

    PubMed 29922234
  • Zhang W, Wang W, Yu H, Zhang Y, Dai Y, Ning C, Tao L, Sun H, Kellems RE, Blackburn MR, Xia Y. Interleukin 6 underlies angiotensin II-induced hypertension and chronic renal damage. Hypertension. 2012 Jan;59(1):136-44. doi: 10.1161/HYPERTENSIONAHA.111.173328. Epub 2011 Nov 7.

    PubMed 22068875
  • Marquez E, Riera M, Pascual J, Soler MJ. Renin-angiotensin system within the diabetic podocyte. Am J Physiol Renal Physiol. 2015 Jan 1;308(1):F1-10. doi: 10.1152/ajprenal.00531.2013. Epub 2014 Oct 22.

    PubMed 25339703
  • Wang Y, Deb DK, Zhang Z, Sun T, Liu W, Yoon D, Kong J, Chen Y, Chang A, Li YC. Vitamin D receptor signaling in podocytes protects against diabetic nephropathy. J Am Soc Nephrol. 2012 Dec;23(12):1977-86. doi: 10.1681/ASN.2012040383. Epub 2012 Nov 2.

    PubMed 23123403
  • Guo J, Lu C, Zhang F, Yu H, Zhou M, He M, Wang C, Zhao Z, Liu Z. VDR Activation Reduces Proteinuria and High-Glucose-Induced Injury of Kidneys and Podocytes by Regulating Wnt Signaling Pathway. Cell Physiol Biochem. 2017;43(1):39-51. doi: 10.1159/000480315. Epub 2017 Aug 24.

    PubMed 28848172
  • Yang S, Li A, Wang J, Liu J, Han Y, Zhang W, Li YC, Zhang H. Vitamin D Receptor: A Novel Therapeutic Target for Kidney Diseases. Curr Med Chem. 2018;25(27):3256-3271. doi: 10.2174/0929867325666180214122352.

    PubMed 29446731
  • Lei M, Liu Z, Guo J. The Emerging Role of Vitamin D and Vitamin D Receptor in Diabetic Nephropathy. Biomed Res Int. 2020 Jul 11;2020:4137268. doi: 10.1155/2020/4137268. eCollection 2020.

    PubMed 32766307

Questions about this trial

What is this clinical trial studying?

A study testing Calcitriol capsules in people with Diabetic Kidney Disease, run by Universitas Indonesia at 1 site in Indonesia.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 6 Apr 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Indonesia. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Pringgodigdo Nugroho, MD (+628179822504, pringgodigdo.nugroho@ui.ac.id), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Urinary podocin (time frame: 6 months). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05298163, which also lists 16 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Apr 2022.

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