Friday April 25, 2025 8:50am - 9:05am EDT
Title: Clinical Impact of GLP-1 and GIP/GLP-1 Receptor Agonist Access Issues in a Primary Care Setting
Authors: Alexandra Cochran, Laura Schalliol, Savannah Owen, Holly Lowe, and Gabriella V Rosellini
Objective:
The primary objective is to evaluate the percent change in HbA1c for the prescribed GLP-1 or GIP/GLP-1 receptor agonist for the treatment group compared to the control group.
The secondary objectives are to evaluate the change in weight and BMI for the prescribed GLP-1 or GIP/GLP-1 receptor agonist for the treatment group compared to the control group and to observe the medication adjustments made to maintain glycemic control in the absence of a GLP-1 and GIP/GLP-1 receptor agonist therapy.
Self Assessment Question: What are some potential strategies to mitigate the impact of GLP-1 and GIP/GLP-1 receptor agonist access issues on patient outcomes?
A. Expanding patient assistance programs
B. Utilizing SGLT2 inhibitors or insulin as alternatives
C. Implementing clinic-based sample programs
D. All of the above
Background: Type 2 diabetes mellitus (T2DM) is a growing global health concern that requires comprehensive management to minimize complications. The complications of T2DM, including cardiovascular disease, chronic kidney disease, neuropathy, and retinopathy, can significantly impact a patient’s quality of life and overall health outcomes. Effective management of T2DM includes not only controlling blood glucose levels but also promoting weight management. However, despite significant advancements in diabetes therapies, many patients still struggle to achieve optimal control due to barriers such as medication costs, accessibility, and adherence.
The introduction of glucagon-like peptide-1 (GLP-1) receptor agonists, such as liraglutide, semaglutide, dulaglutide, and exenatide, revolutionized T2DM treatment by providing both glycemic control and weight reduction. The widespread use of GLP-1 receptor agonists has led to improved health outcomes, especially in patients with comorbid cardiovascular disease, and have become a cornerstone in the management of T2DM. Moreover, the recent advent of dual glucose-dependent insulinotropic polypeptide (GIP)/GLP-1 receptor agonist, tirzepatide, has shown significant metabolic effects as well.
Despite the efficacy of these therapies, challenges in accessing GLP-1 and GIP/GLP-1 receptor agonists have emerged as a significant issue for many patients. Medication shortages, delays in prior authorization, and high out-of-pocket costs can impede timely access to these treatments, disrupting the continuity of care. Access barriers are particularly concerning, as they can lead to periods of inadequate glycemic control. Furthermore, patients who experience these disruptions may need to rely on less effective therapies
Methods: This study is a single-center, retrospective cohort analysis that utilizes medical records accessed via the electronic health record. Medical records were screened for patients prescribed any of the studied medications between January 1, 2022, and July 31, 2024. Inclusion criteria included adult patients aged eighteen years or older and having a T2DM diagnosis. Once included, patients were further divided into a treatment group and a control group. Exclusion criteria included patients who were younger than 18 years of age, with either no follow-up documentation or a medication discontinuation due to adverse effects.
Results: A total of 379 patients were reviewed for this study, with 247 patients meeting the inclusion criteria. Of these, 51 patients experienced an access issue with the prescribed GLP-1 or GIP/GLP-1 receptor agonists while 196 were included but did not experience any of the studied access issues. Of the 247 patients included, the average age was 59.5 years with 49% of the patient population being male.
The average change in HbA1c was -0.42% in the treatment group and -0.75% in the control group (p = 0.2128), indicating no statistically significant difference. Similarly, the average weight change was -1.91 kg in the treatment group and -2.13 kg in the control group (p = 0.7022). BMI changes followed a comparable trend, with an average reduction of -0.7 kg/m2 in the treatment group and -0.75 kg/m2 in the control group (p = 0.812).
Conclusion: Access issues for GLP-1 and GIP/GLP-1 receptor agonists can lead to clinically significant changes in glycemic control, weight, and BMI in patients with T2DM. This study reinforces the need for proactive management strategies and a collaborative approach among healthcare providers to mitigate the effects of access issues on patient health outcomes. Further research is needed to explore the long-term effects of medication access interruptions, including their impact on diabetes-related complications and overall patient outcomes. Additionally, studies should investigate the efficacy of alternative therapies, such as SGLT2 inhibitors or insulin regimens, in maintaining glycemic control when GLP-1 and GIP/GLP-1 receptor agonists are unavailable.
Moderators
Presenters
PGY-1 Resident, South College School of Pharmacy
My name is Alexandra Cochran, and I am the current PGY-1 Community-Based Pharmacy Resident at South College School of Pharmacy. I earned my Doctor of Pharmacy degree from The University of Tennessee Health Science Center. My professional interests lie in ambulatory care pharmacy and...
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Evaluators
Friday April 25, 2025 8:50am - 9:05am
EDT
Athena C