End Stage Kidney Disease
Conditions
Brief summary
This will be a randomized controlled pilot trial comparing usual care to a precision approach to dialysis potassium prescribing. The precision approach will incorporate point of care testing of blood potassium concentration prior to each dialysis session and adjustment of the dialysate K prescription with a blood-dialysate K gradient minimization strategy (PKRxHD).
Interventions
The precision approach will incorporate point of care testing of blood potassium concentration prior to each dialysis session and adjustment of the dialysate K prescription with a blood-dialysate K gradient minimization strategy (PKRxHD).
Standard of care dialysis.
Sponsors
Study design
Eligibility
Inclusion criteria
* Undergoing in-center, 3x/weekly HD for treatment of end-stage kidney disease (ESKD) for at least 90 days * Age at least 21 years * Prescribed HD time up to 15 hours/ week
Exclusion criteria
* Incarcerated * Life expectancy of 1 year or less * Kidney transplant, transition to home dialysis, or transfer to non-participating HD unit anticipated within 6 months or less * Cognitive condition that precludes consent * Severe anemia (hemoglobin \< 8.0 g/dL) within 30 days * K concentration of 7.0 mEq/L or more within 60 days * Pregnant women * Women of childbearing potential actively trying to conceive unwilling to use contraception * Participation in other interventional studies within 30 days prior to enrollment
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Intervention Adherence | Up to Week 24 | Measured as the proportion of hemodialysis (HD) treatments in the experimental arm completed per protocol with both pre-HD point of care testing and appropriate adjustment of the dialysate prescription. |
| Recruitment Feasibility | Baseline | Measured as the proportion of eligible patients enrolled successfully. |
| Incidence Rate of Pre-HD Hyperkalemia | Baseline | Hyperkalemia is defined as K≥ 6.4 mEq/L. |
| Post-HD Recovery Time | Up to Week 24 | Measured as the average time to recovery following each HD session. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Incidence Rate of Moderate Hyperkalemia | Up to Week 24 | Hyperkalemia is defined as K≥ 3.0 mEq/L. |
| Incidence Rate of Peri-Dialytic Cramping | Up to Week 24 | — |
| Incidence Rate of Post-HD Hyperkalemia Incidence Rate | Up to Week 24 | Hyperkalemia is defined as K≥ 6.4 mEq/L. |
| Incidence Rate of Intradialytic Hypotension | Up to Week 24 | Intradialytic hypotension will be defined as the proportion of HD sessions with intradialytic systolic blood pressure\<90 mmHg, as this definition best captures associations with mortality according to current guidelines. |