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Effect of Azithromycin on Exacerbations in Asthma Patients with Obesity: Protocol for a Multi-Center, Prospective, Single-Arm Intervention Study

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  • Hiroki Tashiro

    (Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 8498501, Japan
    TARGET Investigator Group, Saga 8498501, Japan)

  • Koichiro Takahashi

    (Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 8498501, Japan
    TARGET Investigator Group, Saga 8498501, Japan)

  • Masaru Uchida

    (TARGET Investigator Group, Saga 8498501, Japan
    Division of Internal Medicine, Japan Community Health Care Organization Saga Central Hospital, Saga 8498522, Japan)

  • Yuki Kurihara

    (Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 8498501, Japan
    TARGET Investigator Group, Saga 8498501, Japan)

  • Hironori Sadamatsu

    (TARGET Investigator Group, Saga 8498501, Japan
    Division of Respiratory Medicine, Saga Prefectural Medical Center Koseikan, Saga 8408571, Japan)

  • Ayako Takamori

    (Clinical Research Center, Saga University Hospital, Saga 8498501, Japan)

  • Shinya Kimura

    (Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 8498501, Japan)

  • Naoko Sueoka-Aragane

    (Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga 8498501, Japan)

Abstract

Introduction: Obesity is associated with severe asthma, but no specific treatment has been established. The gut microbiome is increasingly recognized as a crucial factor, but specific treatments focused on the gut microbiome have not been established. Recently, azithromycin has been found to have the capacity to attenuate exacerbations, a characteristic of severe asthma. The effect of azithromycin on obesity-induced severe asthma is not understood. Methods: The purpose of the present study is to clarify the effect of azithromycin on exacerbations in asthmatic patients with obesity. To explore the mechanism, the gut microbiome, metabolites of microbes such as short-chain fatty acids, and blood inflammatory cytokines will be analyzed to evaluate the correlation with the effect of azithromycin on exacerbations in obesity-induced severe asthma. A multi-center, prospective, single-arm intervention study is planned. Discussion: The present study will allow us to evaluate the effect of azithromycin on exacerbations, particularly in asthma patients with obesity, and explore biomarkers, targeting molecules including the gut microbiome, which are correlated with decreased exacerbations. The present results could contribute to identifying new therapeutic prospects and targeted microbes or molecules associated with severe clinical characteristics in asthmatic patients with obesity. Trial registration: This study has been registered as a prospective study with the University Hospital Medical Information Network (UMIN0000484389) and the Japan Registry of Clinical Trials (jRCTs071220023).

Suggested Citation

  • Hiroki Tashiro & Koichiro Takahashi & Masaru Uchida & Yuki Kurihara & Hironori Sadamatsu & Ayako Takamori & Shinya Kimura & Naoko Sueoka-Aragane, 2023. "Effect of Azithromycin on Exacerbations in Asthma Patients with Obesity: Protocol for a Multi-Center, Prospective, Single-Arm Intervention Study," IJERPH, MDPI, vol. 20(3), pages 1-10, January.
    • Handle: RePEc:gam:jijerp:v:20:y:2023:i:3:p:1861-:d:1041135
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    References listed on IDEAS

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    1. Peter J. Turnbaugh & Ruth E. Ley & Michael A. Mahowald & Vincent Magrini & Elaine R. Mardis & Jeffrey I. Gordon, 2006. "An obesity-associated gut microbiome with increased capacity for energy harvest," Nature, Nature, vol. 444(7122), pages 1027-1031, December.
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