Medication Nonadherence Linked to Worse COPD Outcomes

Studies show cost, forgetfulness, and other factors contribute to patients not taking COPD drugs as prescribed.

Published on Mar. 4, 2026

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New research has found that many COPD patients are not taking their medications as prescribed, leading to more frequent exacerbations, faster lung function decline, and higher mortality. The reasons are complex, including cost, forgetfulness, physical limitations, and lack of understanding about proper inhaler use.

Why it matters

Consistent medication adherence is crucial for managing COPD, a chronic and progressive lung disease affecting over 30 million Americans. The studies highlight the need for a multi-faceted approach to address both financial and non-financial barriers to improve patient outcomes.

The details

Two recent studies examined the impact of medication nonadherence in COPD patients. One study of over 2,500 participants found that 16.2% reported cost-related nonadherence, which was linked to quicker lung function decline, more exacerbations, and greater symptom burden. A separate study with 17 COPD patients identified additional barriers like forgetfulness, physical limitations, lack of inhaler technique knowledge, and difficulty accessing healthcare.

  • The research was published in the January 2026 issue of Chronic Obstructive Pulmonary Diseases: Journal of the COPD Foundation.

The players

Dr. Stephanie L. LaBedz

A physician at the University of Illinois Chicago who explains that medication nonadherence has highly individual reasons, and doctors need to understand the full range of barriers their patients face.

Dr. Rajat Suri

A researcher at the University of California San Diego who notes that upcoming policy changes and advancements in inhaler technology could help address cost and usability issues related to COPD medications.

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What they’re saying

“Medication nonadherence is common, but the reasons behind it are highly individual. Physicians need to understand the full range of barriers their patients face so they can provide better education and connect them with support.”

— Dr. Stephanie L. LaBedz, Physician, University of Illinois Chicago

“The two respiratory inhalers currently undergoing negotiation in the second round of the Inflation Reduction Act could potentially alleviate cost-related nonadherence.”

— Dr. Rajat Suri, Researcher, University of California San Diego

What’s next

Future research and interventions will likely focus on personalized strategies to address each patient's unique barriers, including financial assistance programs, simplified medication regimens, telehealth monitoring, and enhanced patient education.

The takeaway

Improving medication adherence for the millions of Americans living with COPD will require a multi-pronged approach that tackles both financial and non-financial obstacles. Doing so could lead to better symptom management, fewer hospitalizations, and ultimately, improved quality of life for COPD patients.