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Patient Characteristics and Healthcare Resource Utilization Among Patients with COPD New to LAMA/LABA Fixed-Dose Combination Treatment in US-Based Real-World Practice

Authors Ding B, Kallenbach L, Slipski L, Wilk A, O'Brien D, Guranlioglu D

Received 16 November 2019

Accepted for publication 21 March 2020

Published 16 April 2020 Volume 2020:15 Pages 775—786


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Richard Russell

Bo Ding,1 Lee Kallenbach,2 Lukas Slipski,2 Alan Wilk,2 Dan O’Brien,2 Deniz Guranlioglu3

1AstraZeneca, Gothenburg, Sweden; 2Practice Fusion, San Francisco, CA, USA; 3AstraZeneca, Cambridge, UK

Correspondence: Bo Ding
AstraZeneca, Pepparedsleden 1, Gothenburg SE 431 83, Mölndal, Sweden
Tel +46 31 776 2406

Introduction: This retrospective, observational cohort study utilized an integrated dataset from an electronic health records system and a claims database to describe demographic and clinical characteristics, healthcare resource utilization (HCRU), and treatment patterns in COPD patients initiating long-acting muscarinic antagonist (LAMA)/long-acting β2-agonist (LABA) fixed-dose combination (FDC) treatment in the USA.
Methods: Patients were aged ≥ 40 years and had a COPD diagnosis (Practice Fusion system) and ≥ 1 prescription of LAMA/LABA FDC therapy, with an index date (first prescription) 1 May 2014– 31 December 2017. For the HCRU analysis, patients had ≥ 2 claims from the Symphony Health database within 12 months before index. All analyses of outcomes relating to demographic and clinical characteristics, HCRU, and treatment patterns were descriptive.
Results: Patients initiating LAMA/LABA FDCs (n=8224) had a mean age of 67.9 years, 52.8% were female, and mean BMI was 29.2 kg/m2. The most common comorbidities were cardiovascular disease (74.3%), hypertension (64.0%), and hyperlipidemia (45.6%). In the 12 months prior to index, 53.1% of patients had used inhaled therapy: 23.4% short-acting therapy only, 16.7% short-acting and maintenance therapy, and 13.1% maintenance therapy only. Amongst users of inhaled therapies, the pMDI was the most frequently used device (64.3%, n=2812/4370). Of 7050 patients included in the HCRU analysis, 79.8% had COPD-related costs; mean cost/patient was $4174. Mean COPD-related costs per patient for moderate and severe exacerbations were $910 and $23,208, respectively. Per-patient costs included $23,032 for inpatient visits, $2358 for emergency visits, $4432 for outpatient visits, and $1989 for pharmacy claims.
Conclusion: This observational study is the first to describe the real-world demographic and clinical characteristics and HCRU of patients initiating LAMA/LABA FDC treatment in the USA. Patients were generally elderly and overweight, with comorbidities of CVD, hypertension, and hyperlipidemia. Inpatient visits were the largest contributor to COPD-related costs per patient in the year prior to initiation of LAMA/LABA FDCs.

Keywords: muscarinic antagonist, β2-agonist, demographic characteristics, disease characteristics, cost

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