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Chronic Kidney DiseasesNCT03550534

The Effectiveness and Safety of Calcium Carbonate in Chronic Kidney Disease With Normophosphatemia

A study testing Calcium Carbonate in people with Chronic Kidney Diseases, run by Universitas Indonesia at 1 site in Indonesia.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Background: Patient with stage 3 or 4 chronic kidney disease (CKD) usually has normal level of serum phosphate, due to increased serum fibroblast growth factor-23 (FGF23) level that resulted in increased phosphate urine excretion. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Chronic Kidney Diseases
What is being tested?
Calcium Carbonate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
46 participants
Where
1 siteIndonesia
Study dates
6 Nov 2015to 11 Dec 2016
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

  • Stage 3 or 4 chronic kidney disease patient that visit nephrology or endocrinology outpatient clinic of dr. Cipto Mangunkusumo Hospital
  • Normal level of serum phosphate
  • Agreed to join in this study

Who cannot join

  • Subjects with BMI < 18.5 kg/m2 or > 30 kg/m2
  • Consume drugs which may interfere bone mineral metabolism

Trial locations and contacts

1 site in 1 country.

Indonesia1 site
  • dr. Cipto Mangunkusumo Hospital

    Jakarta Pusat, DKI Jakarta, 10430

Other trials in Indonesia

About this study

Official title: The Effectiveness and Safety of Calcium Carbonate in Chronic Kidney Disease With Normophosphatemia: A Double Blind, Randomized Controlled Trial

Background: Patient with stage 3 or 4 chronic kidney disease (CKD) usually has normal level of serum phosphate, due to increased serum fibroblast growth factor-23 (FGF23) level that resulted in increased phosphate urine excretion. On the other hand, serum FGF23 elevation was related to CKD progression, vascular calcification, cardiomegaly, and mortality. This double blind, randomized controlled trial study was conducted to evaluate effectiveness and safety of calcium carbonate administration in stage 3 or 4 CKD patients with normophosphatemia.

Hypothesis: Calcium carbonate administration is effective and safe in chronic kidney disease (CKD) with normophosphatemia.

Read the detailed description

Cardiovascular disease is the most cause of mortality of chronic kidney disease (CKD) patients. As CKD progresses, the prevalence of cardiovascular disease also increased. Beside traditional cardiovascular risk factor that the investigators have known, some non-traditional cardiovascular risk factors were reported to be associated with cardiovascular disease in CKD patients, which one of them was increased level of fibroblast growth factor-23 (FGF23).[1,2]

FGF23 reduces production of 1,25-vitamin D3 and expression of sodium-phosphate cotransport, and also excretes phosphate through urine. In healthy and CKD population, increased phosphate level resulted in increased production of FGF23. Normophosphatemia state in early to moderate stage of CKD was reported due to body compensation by increasing the level of FGF23. On the other hand, increased serum FGF23 level was related to CKD progression, cardiomegaly, vascular calcification, and mortality.[1] There are several ways to prevent hyperphosphatemia, such as low phosphor intake, phosphate binder administration, and adequate dialysis.[3]

Phosphate binder was reported to give positive effects in CKD patients with hyperphosphatemia. Studies which investigated the use of phosphate binder in CKD patients with normophosphatemia to decrease FGF23 were still limited and the result was controversial.[1]

Therefore, this double blind, randomized controlled trial study investigated the effectiveness and safety of calcium carbonate in early to moderate CKD patients with normophosphatemia in lowering FGF23 levels. Study participant were randomized to receive calcium carbonate or placebo for 12 weeks. Before and after intervention, blood and urine sample were taken to examine serum FGF23, serum phosphate, urine phosphate, ionized calcium, serum calcium, urea, creatinine, estimated glomerular filtration rate (eGFR), and albumin. Effectiveness of calcium carbonate administration was indicated by serum FGF23, while safety was indicated by serum calcium.

Being tested
Calcium Carbonate, Placebo oral capsule
Keywords
Calcium carbonate, Chronic kidney disease, Normophosphatemia, FGF23, Phosphate binder
Medical subject headings
Renal Insufficiency, Chronic

What participants receive

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

  • Calcium CarbonateDrug

    Calcium carbonate was obtained from Pharmacy Department, Faculty of Medicine, University of Indonesia. Subjects were randomized to receive calcium carbonate or placebo for 12 weeks.

  • Placebo oral capsuleDrug

    Placebo oral capsule was also obtained from Pharmacy Department, Faculty of Medicine, University of Indonesia. Subjects were randomized to receive calcium carbonate or placebo for 12 weeks.

Study groups in NCT03550534
Study groupRoleWhat they receive
Calcium CarbonateExperimentalCalcium carbonate 3 x 500 mg was given to 23 study participants for 12 weeks
Receives: Drug: Calcium Carbonate
Placebo oral capsulePlacebo comparatorPlacebo oral capsule 3 x 1 was given to 23 study participants for 12 weeks
Receives: Drug: Placebo oral capsule

What is being measured

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

  1. Serum Fibroblast Growth Factor 23 (FGF-23)

    Serum FGF23 (pg/ml) as cardiovascular risk factor in chronic kidney disease (CKD) was measured and compared between 2 groups before and after intervention

    Measured: 12 weeks

Secondary outcomes (1)
  1. Serum Calcium Level

    Serum calcium level (mg/dl) was measured and compared between 2 groups before and after intervention

    Measured: 12 weeks

Timeline

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

  1. First posted8 Jun 2018
  2. Study start6 Nov 2015
  3. Primary completion11 Dec 2016
  4. Study completion11 Dec 2016

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
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
46 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03550534
Sponsor's protocol ID
198/UN2.F1/ETIK/2015
Status last verified
Jun 2018
First submitted
22 May 2018
Last updated
8 Jun 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Isakova T, Xie H, Yang W, Xie D, Anderson AH, Scialla J, Wahl P, Gutierrez OM, Steigerwalt S, He J, Schwartz S, Lo J, Ojo A, Sondheimer J, Hsu CY, Lash J, Leonard M, Kusek JW, Feldman HI, Wolf M; Chronic Renal Insufficiency Cohort (CRIC) Study Group. Fibroblast growth factor 23 and risks of mortality and end-stage renal disease in patients with chronic kidney disease. JAMA. 2011 Jun 15;305(23):2432-9. doi: 10.1001/jama.2011.826.

    PubMed 21673295
  • Martin K, Floege J, Ketteler M. Bone and mineral metabolism in chronic kidney disease. In: Johnson R, Feehally J, Floege J, editors. Comprehensive clinical nephrology. Fifth edition. Philadelphia: Saunders; 2015. p. 984-7.

  • Ketteler M, Leonard M. KDIGO 2016 Clinical practice guideline update on diagnosis, evaluation, prevention, and treatment of CKD-MBD. Off J Int Soc Nephrol. 2016;(August):1-45

  • Prakash S, O'Hare AM. Interaction of aging and chronic kidney disease. Semin Nephrol. 2009 Sep;29(5):497-503. doi: 10.1016/j.semnephrol.2009.06.006.

    PubMed 19751895
  • Iseki K. Gender differences in chronic kidney disease. Kidney Int. 2008 Aug;74(4):415-7. doi: 10.1038/ki.2008.261.

    PubMed 18670407
  • Perhimpunan Nefrologi Indonesia. 8th Report of Indonesian Renal Registry. Jakarta; 2015

  • Bayliss G, Weinrauch LA, D'Elia JA. Pathophysiology of obesity-related renal dysfunction contributes to diabetic nephropathy. Curr Diab Rep. 2012 Aug;12(4):440-6. doi: 10.1007/s11892-012-0288-1.

    PubMed 22638939
  • Langman CB, Cannata-Andia JB. Calcium in chronic kidney disease: myths and realities. Introduction. Clin J Am Soc Nephrol. 2010 Jan;5 Suppl 1:S1-2. doi: 10.2215/CJN.06140809. No abstract available.

    PubMed 20089497
  • Fliser D, Kollerits B, Neyer U, Ankerst DP, Lhotta K, Lingenhel A, Ritz E, Kronenberg F; MMKD Study Group; Kuen E, Konig P, Kraatz G, Mann JF, Muller GA, Kohler H, Riegler P. Fibroblast growth factor 23 (FGF23) predicts progression of chronic kidney disease: the Mild to Moderate Kidney Disease (MMKD) Study. J Am Soc Nephrol. 2007 Sep;18(9):2600-8. doi: 10.1681/ASN.2006080936. Epub 2007 Jul 26.

    PubMed 17656479
  • Soriano S, Ojeda R, Rodriguez M, Almaden Y, Rodriguez M, Martin-Malo A, Aljama P. The effect of phosphate binders, calcium and lanthanum carbonate on FGF23 levels in chronic kidney disease patients. Clin Nephrol. 2013 Jul;80(1):17-22. doi: 10.5414/CN107764.

    PubMed 23391319
  • Shigematsu T, Negi S; COLC Research Group. Combined therapy with lanthanum carbonate and calcium carbonate for hyperphosphatemia decreases serum FGF-23 level independently of calcium and PTH (COLC Study). Nephrol Dial Transplant. 2012 Mar;27(3):1050-4. doi: 10.1093/ndt/gfr388. Epub 2011 Jul 19.

    PubMed 21771755
  • Oliveira RB, Cancela AL, Graciolli FG, Dos Reis LM, Draibe SA, Cuppari L, Carvalho AB, Jorgetti V, Canziani ME, Moyses RM. Early control of PTH and FGF23 in normophosphatemic CKD patients: a new target in CKD-MBD therapy? Clin J Am Soc Nephrol. 2010 Feb;5(2):286-91. doi: 10.2215/CJN.05420709. Epub 2009 Nov 12.

    PubMed 19965540
  • Block GA, Wheeler DC, Persky MS, Kestenbaum B, Ketteler M, Spiegel DM, Allison MA, Asplin J, Smits G, Hoofnagle AN, Kooienga L, Thadhani R, Mannstadt M, Wolf M, Chertow GM. Effects of phosphate binders in moderate CKD. J Am Soc Nephrol. 2012 Aug;23(8):1407-15. doi: 10.1681/ASN.2012030223. Epub 2012 Jul 19.

    PubMed 22822075
  • Sprague SM, Abboud H, Qiu P, Dauphin M, Zhang P, Finn W. Lanthanum carbonate reduces phosphorus burden in patients with CKD stages 3 and 4: a randomized trial. Clin J Am Soc Nephrol. 2009 Jan;4(1):178-85. doi: 10.2215/CJN.02830608. Epub 2008 Dec 3.

    PubMed 19056618
  • Hill KM, Martin BR, Wastney ME, McCabe GP, Moe SM, Weaver CM, Peacock M. Oral calcium carbonate affects calcium but not phosphorus balance in stage 3-4 chronic kidney disease. Kidney Int. 2013 May;83(5):959-66. doi: 10.1038/ki.2012.403. Epub 2012 Dec 19.

    PubMed 23254903

Questions about this trial

What is this clinical trial studying?

A study testing Calcium Carbonate in people with Chronic Kidney Diseases, 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 2 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: finished, as of the sponsor's last update on 8 Jun 2018. 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. Some participants in this study may receive a placebo. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Serum Fibroblast Growth Factor 23 (FGF-23) (time frame: 12 weeks). 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 NCT03550534, which also lists 15 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 8 Jun 2018.

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