Phase 4
N=45
Effect of Urinary Alkalinization on Urine Uric Acid Precipitation and Crystallization in Adults With Type 1 Diabetes
Type 1 Diabetes · Diabetic Nephropathy · Diabetic Kidney Disease
Bottom Line
View on ClinicalTrials.gov: NCT02502071 ↗Enrolled (actual)
45
Serious AEs
0.0%
Results posted
Nov 2018
Primary outcome: Primary: Change in Urine Uric Acid Concentration (Increased Solubility) by Assay — 23.81; 22.30 mg/dl
Study Design & Population
- Study type
- Interventional
- Phase
- Phase 4
- Interventions
- sodium bicarbonate (Drug)
- Age
- Adult · 18+ yrs
- Sex
- All
- Sponsor
- University of Colorado, Denver
- Primary completion
- Jul 2017
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Change in Urine Uric Acid Concentration (Increased Solubility) by Assay |
23.81; 22.30 | — |
| PRIMARY Change in Number of Participants With Urine Uric Acid Precipitation by Polarized Microscopy |
14; 3 | — |
Summary
The purpose of this study is to determine whether alkalinization of urine uric acid by 2 doses of sodium bicarbonate (1950mg) over 24-hours reduces precipitation and crystallization of urine uric acid over in adults with type 1 diabetes.
Eligibility Criteria
Inclusion Criteria
- Adults (aged 18-45 years) with type 1 diabetes
- Participants must be able to be fasting prior to study visit and give informed consent.
Exclusion Criteria
- Non-type 1 diabetes
- History of eGFR <60 ml/min/1.73m2 or microalbuminuria or greater
- History of hypocalcemia or at risk of hypocalcemia
- Taking allopurinol or uric acid altering medications
- Ketogenic diet
- Ketonuria
- Taking phosphorus binders (e.g. sevelamer)
- Pregnant or breastfeeding
- Taking the following medications which may interact with sodium bicarbonate (e.g. phentermine, pseudoephedrine, antifungal medication, cephalosporin antibiotics [e.g. Keflex], tetracycline antibiotics [e.g. doxycycline], steroids or lithium)
- Taking SGLT-2 inhibitors
- Taking blood pressure medications
Data sourced from ClinicalTrials.gov (NCT02502071). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.