Potassium Citrate and Crystal Light Lemonade

Northwestern University

Status: Active, not recruiting

Conditions: Kidney Stone

Treatments: Drug: Potassium citrate; Drug: Crystal light; Drug: Potassium citrate + crystal light

Study type: Interventional

Funder types: Other

Identifiers

NCT05389995

STU00216084

Details and patient eligibility

About

To define the effect of crystal light, potassium citrate, or both on urinary stone risk factors in patients with a history of stone and hypocitraturia/low pH

Enrollment: 10 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Men and women between age 18-80 years

2. Willing to follow experimental protocol

3. Willing to complete 24-hour urine collections (three total)

4. Willing to sign the informed consent form

5. Completed Litholink Collection with blood work with results

   a. hypocitraturia OR aciduria i. Hypocitraturics must meet definition of < 450 mg/day for men < 550 mg/day for women.

   b. Low urine pH must be less than 5.6 c. potassium, BUN, creatinine, eGFR and hemoglobin A1c within normal limits

Exclusion criteria

1. Patients with severe hypocitraturia < 200 mg/day (men or women)
2. Patients with hyperkalemia, uncontrolled diabetes, chronic kidney disease, adrenal insufficiency, delayed gastric emptying (or drug induced delayed gastric emptying), peptic ulcer disease, or active UTI
3. Patients with distal renal tubular acidosis or medication induced RTA (e.g. carbonic anhydrase inhibitor, topiramate)
4. Members of vulnerable patient populations
5. Allergies to ingredients in crystal light
6. Patients lacking decisional capacity

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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10 participants in 3 patient groups

Potassium citrate

Active Comparator group

Treatment:

Drug: Potassium citrate

Crystal light

Active Comparator group

Treatment:

Drug: Crystal light

Crystal light + potassium citrate

Active Comparator group

Treatment:

Drug: Potassium citrate + crystal light