Volume 34, Issue 2 e70098
ORIGINAL ARTICLE

Use of Potentially Nephrotoxic Drugs in Type 2 Diabetes Patients on SGLT2i: A Trajectories Analysis

Lanting Yang

Corresponding Author

Lanting Yang

Division of Clinical Pharmacy, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA

Correspondence:

Lanting Yang ([email protected])

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Jingchuan Guo

Jingchuan Guo

Department of Pharmaceutical Outcomes and Policy, University of Florida College of Pharmacy, Gainesville, Florida, USA

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Sandra L Kane-Gill

Sandra L Kane-Gill

Department of Pharmacy and Therapeutics, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA

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Nico Gabriel

Nico Gabriel

Division of Clinical Pharmacy, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA

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Kerry M Empey

Kerry M Empey

Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA

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Kangho Suh

Kangho Suh

Department of Pharmacy and Therapeutics, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA

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Levent Kirisci

Levent Kirisci

Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA

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Inmaculada Hernandez

Inmaculada Hernandez

Division of Clinical Pharmacy, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California, USA

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First published: 22 January 2025

Funding: The authors received no specific funding for this work.

ABSTRACT

Purpose

To characterize trajectories of nephrotoxic potential (NxP) drug use among older adults with Type 2 Diabetes (T2D) treated with SGLT2is and identify associated patient characteristics.

Methods

Using 2012–2019 Medicare data, we selected patients with T2D who filled at least one prescription for SGLT2is. Index date was the date of the first SGLT2i prescription filled. We quantified the number of drugs with NxP used every month during the first 12 months following the index date. The monthly counts of drugs with NxP were incorporated into the group-based trajectory model to identify groups with similar drug use patterns. Finally, we performed a multinomial logistic regression model to examine the association between patient characteristics and group membership.

Results

The study cohort comprised 8811 Medicare beneficiaries with T2D who initiated SGLT2i during the study period with the mean age 67.5 ± 10.6 years. We identified 3 trajectories NxP drug use: no (n = 2142, 24%), low (n = 4752, 54%) and high (n = 1917, 22%) use of drugs with NxP, with patients falling into these categories based on the number of drugs with NxP they used over the time: no drugs, one drug, or two or more drugs. Age, gender, low-income subsidy eligibility and clinical characteristics were associated with group membership.

Conclusions

We successfully identified three trajectory groups, with a substantial proportion of patients showing low use of drugs with NxP. Both social and clinical factors were associated with the use of NxP drugs.

Conflicts of Interest

The authors declare no conflicts of interest.

Data Availability Statement

The data are not available for transfer as per data use agreement.

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