Dietary Acid Reduction and Progression of Chronic Kidney Disease
Chronic Kidney Diseases, Cardiovascular Diseases, Hypertension
About this trial
This is an interventional treatment trial for Chronic Kidney Diseases focused on measuring albuminuria
Eligibility Criteria
Inclusion Criteria: Non-malignant high blood pressure or hypertension 18-70 years old Urine albumin-to-creatine ratio > 200 mg/g creatinine Estimated glomerular filtration rate (eGFR) greater than or equal to 90 ml/min/1.73 m2 Serum total CO2 (TCO2) > 22 mmol/l Greater than or equal to 2 primary care visits in the preceding year Able to provide informed consent Exclusion Criteria: Malignant hypertension or history thereof Primary kidney disease or findings consistent thereof such as > 3 red blood cells per high powered field of urine or urine cellular casts History of diabetes or fasting glucose greater than or equal to 110 mg/dl History of hematologic disorders, malignancies, chronic infections, current pregnancy, history or clinical evidence of cardiovascular disease Peripheral edema or diagnosis associated with edema such as heart/liver failure or nephrotic syndrome Unable to provide consent
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm 3
Experimental
Experimental
Active Comparator
Fruits and vegetables (F+V)
NaHCO3 (HCO3)
Usual Care (UC)
51 participants with hypertension, normal estimated glomerular filtration rate (eGFR) (>90 ml/min/m2) and macroalbuminuria (albumin [mg] to creatinine [g] ratio > 200 mg/g) will receive a prescribed amount of base-producing fruits and vegetables (F+V) designed to reduce their dietary acid intake by half. Depending on the particular foods used, this amounts to 2-4 cups daily of fruits and vegetables given in weekly allotments. They will otherwise receive standard care for their medical concerns including angiotensin converting enzyme inhibitor therapy for albuminuria and followed annually for 5 years.
51 participants with hypertension, normal estimated glomerular filtration rate (eGFR) (>90 ml/min/m2) and macroalbuminuria (albumin [mg] to creatinine [g] ratio > 200 mg/g) will receive 0.4 mEq/kg/bw oral tablet dose of sodium bicarbonate (NaHCO3) designed to match the alkali intake of F+V. They will otherwise receive standard care for their medical concerns including angiotensin converting enzyme inhibitor therapy for albuminuria and followed annually for 5 years.
51 participants with hypertension, normal estimated glomerular filtration rate (eGFR) (>90 ml/min/m2) and macroalbuminuria (albumin [mg] to creatinine [g] ratio > 200 mg/g) will receive no additional alkali (neither F+V or NaHCO3) and will receive standard care for their medical concerns, including angiotensin converting enzyme inhibitor therapy for albuminuria and followed annually for 5 years.