Background:
Although the management of hyperkalemia follows expert guidelines, treatment
approaches are based on traditionally accepted practice standards. New drugs
have been assessed such as sodium zirconium cyclosilicate and patiromer;
however, their safety and efficacy or effectiveness have not yet been
compared to traditional pharmacotherapy.
Objective:
The present systematic review had the purpose to evaluate the efficacy,
effectiveness, and safety of hyperkalemia pharmacotherapies.
Methods:
PubMed, LILACS, Cochrane Library, and ClinicalTrials were searched through
November 2018. Clinical trial, cohort and case-control were searched. The
risk of bias (RoB v2.0 and ROBINS-I) and quality of evidence (GRADE) at the
level of outcomes were assessed.
Results:
Sixteen clinical trials and one retrospective cohort were identified
regarding efficacy and safety of 24 different alternatives. The management
of hyperkalemia remains empirical and off-label, since sodium zirconium
cyclosilicate and patiromer are not available in several countries and
further studies are required to assess efficacy, effectiveness and safety.
Sodium or calcium polystyrene sulfonate (moderate confidence), sodium
zirconium cyclosilicate (moderate confidence), and insulin plus dextrose
(moderate confidence) showed superior efficacy to, respectively, placebo, no
treatment, placebo, and dextrose. Other therapies (low confidence) showed
similar efficacy compared to active or inactive alternatives. Most of the
adverse events reported were nonspecific, so it was not possible to assign
the cause and to classify as defined or probable.
Conclusions:
Comparative cohort and case-control studies are need to evaluate the safety
and effectiveness of new and traditional pharmacotherapies to support the
development of guidelines about acute and chronic hyperkalemia, with
high-quality evidence.