Effect of Oxalate and Urate Metabolism on CKD Evolution

NCT ID: NCT04399915

Last Updated: 2020-05-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

250 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-01-10

Study Completion Date

2024-12-31

Brief Summary

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The current study primarily aimed to characterize the oxalate and uric acid metabolism in CKD patients and to analyze its association with renal survival prognosis. Secondarily, the study is planned to determine whether hyperoxalemia and hyperuricemia are independent risk factors for cardiovascular events and mortality.

Detailed Description

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The study protocol is approved by a local Ethics Committee and registered in Domestic Clinical Trial Registry (Identifier 0119U000002). Writing informed consent is obtained from all subjects participating in the study.

The study will enroll 300 participants (250 CKD patients at stage 1-5 and 50 healthy subjects). Routine biochemical parameters including blood and daily dialysate concentration of urea and creatinine, serum albumin, C-reactive protein (CRP), glucose, electrolytes, and lipid profile parameters will carry out. Total oxalate-degrading activity in fecal samples, as well as plasma oxalic acid concentration, daily urinary oxalate excretion and peritoneal dialysis effluent oxalate concentration (if any) will determine. Uric acid will also measure in serum, urine and dialysate of peritoneal dialysis patients.

The study will be followed up for 3 years. The primary endpoint is cardiovascular events, secondary endpoints are dialysis adequacy and all-cause mortality. All the endpoints will be collected, as well as other outcomes, such as chronic inflammation, dyslipidemia and dialysis dose, and so on. The outcomes will be analyzed using statistical software.

Conditions

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CKD ESRD Hyperuricemia Oxaluria

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Hyperoxalemia/Hyperuricemia Group

No interventions assigned to this group

Hyperoxalemia/Hyperuricemia-free Group

No interventions assigned to this group

Healthy Subjects

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* age \>18 years old,
* CKD stage 1-4,
* the patients did not take antibiotics and/or probiotics, lipid- and/or urate-lowering therapy for at least past 3 months or:
* dialysis treatment for at least 3 months,
* a stable clinical condition and adequately functioning arteriovenous fistula or peritoneal access,
* a target level of Kt/V (≥ 1.4 for the HD patients and ≥1.7 for the PD patients).

Exclusion Criteria

* hospitalization in the preceding 3 months,
* previous history or actual diagnosis of peritonitis, anemia, systemic and malignant diseases, acute inflammation processes, immunosuppressive treatment and active hepatitis.
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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The Institute of Nephrology of the Academy of Medical Sciences of Ukraine

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Natalia Stepanova

Kyiv, , Ukraine

Site Status RECRUITING

Countries

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Ukraine

Facility Contacts

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Natalia Stepanova, Dr.Sc.

Role: primary

+380442259377

Other Identifiers

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0119U000002

Identifier Type: -

Identifier Source: org_study_id

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