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Randomized Controlled Trial
. 2018 Feb;24(2):173-181.
doi: 10.18553/jmcp.2018.24.2.173.

Prevalence and Management of Drug-Related Problems in Chronic Kidney Disease Patients by Severity Level: A Subanalysis of a Cluster Randomized Controlled Trial in Community Pharmacies

Patricia Quintana-Bárcena  1 , Anne Lord  2 , Annie Lizotte  2 , Djamal Berbiche  3 , Lyne Lalonde  4
Affiliations
Randomized Controlled Trial

Prevalence and Management of Drug-Related Problems in Chronic Kidney Disease Patients by Severity Level: A Subanalysis of a Cluster Randomized Controlled Trial in Community Pharmacies

Patricia Quintana-Bárcena et al. J Manag Care Spec Pharm. 2018 Feb.

Abstract

Background: Drug-related problems (DRPs) are prevalent among chronic kidney disease (CKD) patients. However, little is known about their severity and management by community pharmacists.

Objectives: To (a) describe the prevalence of DRPs by severity level in CKD patients and (b) assess the effect of a training-and-communication network program in nephrology (ProFiL) on these DRPs.

Methods: This is a secondary analysis of a cluster randomized controlled trial evaluating the effect of the ProFiL-program. In 6 CKD clinics, patients at CKD stage 3 or 4 and their community pharmacists were recruited and assigned to the ProFiL group or a usual care (UC) group. Using validated criteria, 2 pharmacists identified DRPs and assessed their severity at baseline and after 12 months. The mean annual change in the number of DRPs per patient by severity level was assessed using a 2-level multivariable linear mixed-effects model.

Results: A total of 494 pharmacists and 442 patients participated. At baseline, the prevalence (mean number of DRPs per patient [SD]) of mild DRPs (e.g., requiring dosage adjustment) and moderate DRPs (e.g., drug adherence requiring a monitoring plan) were 0.55 (0.98) and 1.04 (1.51), respectively. After 12 months, an unadjusted incremental annual reduction of 0.34 moderate DRPs (95% CI = -0.66 to -0.01) was observed in the ProFiL group compared with the UC group. After adjustment, no between-group differences were observed.

Conclusions: Among patients followed in CKD clinics, most DRPs have a moderate severity requiring specific monitoring by pharmacists. The benefit of continuing education programs, such as ProFiL, to reduce moderate DRPs remains to be determined.

Disclosures: This study was supported by the Canadian Institutes of Health Research (grant number: MOP-230207). Part of the study was also funded by Pfizer Canada, Leo Pharma, and Amgen. The authors declare that they have no relevant financial interests. Study concept and design were contributed by Quintana-Bárcena, Lord, and Lalonde. Quintana-Bárcena, Lord, and Lizotte were responsible for the data analysis, and Quintana-Bárcena and Berbiche performed the statistical analysis. The manuscript was written by Quintana-Bárcena and Lalonde and revised by Quintana-Bárcena and Lalonde, along with the other authors.

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Conflict of interest statement

This study was supported by the Canadian Institutes of Health Research (grant number: MOP-230207). Part of the study was also funded by Pfizer Canada, Leo Pharma, and Amgen. The authors declare that they have no relevant financial interests.

Study concept and design were contributed by Quintana-Bárcena, Lord, and Lalonde. Quintana-Bárcena, Lord, and Lizotte were responsible for the data analysis, and Quintana-Bárcena and Berbiche performed the statistical analysis. The manuscript was written by Quintana-Bárcena and Lalonde and revised by Quintana-Bárcena and Lalonde, along with the other authors.

Figures

FIGURE 1
FIGURE 1
Flowchart of the ProFiL Study
FIGURE 2
FIGURE 2
Mean Number of DRPs (Level III) at Baseline (T0) and Mean Number of DRPs Resolved, Maintained, and Newly Identified at 1 Year (T12) in the ProFiL and the Usual Care Groups
See this image and copyright information in PMC

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