• linkedin
  • Increase Font
  • Sharebar

    Umeclidinium triple therapy for patients with COPD: Two studies

    Kathryn WheelerKathryn WheelerOne treatment option recommended by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines for patients with symptomatic COPD at high risk for exacerbations is “triple therapy,” the combination of an inhaled corticosteroid (ICS)/long acting beta agonist (LABA) inhaler with a long acting muscarinic antagonist (LAMA).

    Triple therapy is not uncommon in clinical practice, although lack of extensive research to date has resulted in only limited demonstration of benefit.

    See also: MTM essentials for COPD Management: Part 1

    The studies

    Two 12-week, randomized, double-blind, parallel-group studies assessed the efficacy and safety of daily inhaled doses of 62.5 mcg and 125 mcg of the LAMA umeclidinium vs. placebo, in COPD patients administered baseline therapy of fluticasone priopionate/salmeterol, an ICS/LABA combination inhaler, at 250 mcg/50 mcg inhaled twice daily.

    Patients included in the study were at least 40 years old and had a history of COPD, defined by the American Thoracic Society/European Respiratory Society as including:

    • A minimum 10 pack-years of tobacco use
    • A ratio of forced expiratory volume in one second to forced vital capacity (FEV1/FVC) less than 0.7, assessed both before and after albuterol use
    • A FEV1 of 70% or less of the predicted normal values
    • A minimum score of 2 on the modified Medical Research Council Dyspnea Scale at the first study visit

    Patients were excluded if they had been admitted for COPD or pneumonia within the 12 weeks before the first visit, or had a diagnosis of another respiratory disease.

    All patients received four weeks of therapy with fluticasone propionate/salmeterol 250 mcg/50 mcg and then were randomized to receive umeclidinium 62.5 mcg, 125 mcg, or placebo once daily for 12 weeks.  Albuterol use was permitted as a rescue therapy as needed any time during the study.

    See also: MTM essentials for COPD management: Part 2

    Measures

    Trough FEV1 at day 85 assessed the primary outcome, improvement in lung function.

    Secondary endpoints assessed lung function at various points throughout the study; before-and-after administration of study drug; use of albuterol rescue therapy; and the proportion of patients achieving a clinically relevant improvement in FEV1 and FVC.

    Researchers assessed health-related quality-of-life measures for each patient, starting with a baseline after four weeks of fluticasone propionate/salmeterol administration. 

    The incidents of adverse effects and COPD exacerbations, as well as vital sign assessments, were tracked for safety and tolerability of umeclidinium use.

    The primary outcome analysis was performed using data from all patients randomized to treatment who received at least one dose of study drug.

    Overall, lung function improved in both trials for both doses of umeclidinium used compared to placebo.

    Results

    Both studies demonstrated statistical improvements in trough FEV1 at day 85.

    Use of umeclidinium for either dose in both studies improved a patient’s odds of achieving a trough FEV1 greater than baseline at any visit, an improved FEV1 ≥12% and 0.2 L above baseline any time within six hours after administration on day 1, improvements in FEV1 and trough FVC at each visit, and greater improvements in serial FEV1 measurements sustained for 24 hours. The magnitude of effect was similar for both doses of umeclidinium studied.

    Overall, patients receiving either dose of umeclidinium had a larger proportion of rescue-free days from baseline compared to those receiving placebo in addition to the background therapy. 

    Kathryn Wheeler, PharmD, BCPS
    Kathryn Wheeler, PharmD, BCPS, is assistant clinical professor of pharmacy practice, University of Connecticut School of Pharmacy, ...

    0 Comments

    You must be signed in to leave a comment. Registering is fast and free!

    All comments must follow the ModernMedicine Network community rules and terms of use, and will be moderated. ModernMedicine reserves the right to use the comments we receive, in whole or in part,in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.

    • No comments available