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Background and Objective <p>Nontuberculous mycobacteria (NTM) are opportunistic pathogens that can cause lung disease (NTMLD) in susceptible individuals, but NTMLD management is challenging. This study aims to describe real-world NTMLD treatment patterns in Belgium.</p> Methods <p>This retrospective study used data from the IQVIA longitudinal pharmacy database. Patients with presumed NTMLD (i.e., who initiated prespecified NTM treatments from October 2015 through September 2019) were included. Variables of interest were initiated prescribed regimens, medication possession rate (MPR), and treatment persistence, switches, and restarts.</p> Results <p>Overall, 199 presumed NTMLD patients initiated 72 triple- and 130 dual-drug regimens. The average triple-drug therapy MPR was 88%, and median treatment duration was 225 days. Sixty percent and 30% of patients remained on initial therapy at 6 and 12 months, respectively. Therapy switches were common, with up to five switches per patient. Seventeen percent of initiated therapies were stopped for more than 60 days but restarted within 1 year.</p> Conclusion <p>Despite inherent methodological limitations, results indicate therapy switches, premature treatment interruption, and restarting multidrug oral NTM treatment are common. These findings underscore the need for improved management of NTMLD through enhanced monitoring as well as more tolerable and effective treatment options.</p>

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Nontuberculous Mycobacterial Lung Disease Management in Belgium: A Longitudinal Pharmacy Database Study

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月29日

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  • Eliana Peeters,
  • Marko Obradovic,
  • Roald van der Laan,
  • Rui Cai,
  • Natalie Lorent

摘要

Background and Objective

Nontuberculous mycobacteria (NTM) are opportunistic pathogens that can cause lung disease (NTMLD) in susceptible individuals, but NTMLD management is challenging. This study aims to describe real-world NTMLD treatment patterns in Belgium.

Methods

This retrospective study used data from the IQVIA longitudinal pharmacy database. Patients with presumed NTMLD (i.e., who initiated prespecified NTM treatments from October 2015 through September 2019) were included. Variables of interest were initiated prescribed regimens, medication possession rate (MPR), and treatment persistence, switches, and restarts.

Results

Overall, 199 presumed NTMLD patients initiated 72 triple- and 130 dual-drug regimens. The average triple-drug therapy MPR was 88%, and median treatment duration was 225 days. Sixty percent and 30% of patients remained on initial therapy at 6 and 12 months, respectively. Therapy switches were common, with up to five switches per patient. Seventeen percent of initiated therapies were stopped for more than 60 days but restarted within 1 year.

Conclusion

Despite inherent methodological limitations, results indicate therapy switches, premature treatment interruption, and restarting multidrug oral NTM treatment are common. These findings underscore the need for improved management of NTMLD through enhanced monitoring as well as more tolerable and effective treatment options.