MedTrace Logo

Association of Nutrition and T Cell Immune Activity With Disease Progression in Nontuberculous Mycobacterial Pulmonary Disease

NCT07363798 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 50

Last updated 2026-01-23

No results posted yet for this study

Summary

Nontuberculous mycobacterial pulmonary disease (NTM-PD) is a chronic lung infection caused by environmental mycobacteria. The clinical course of NTM-PD varies widely among patients. Some individuals remain stable for long periods without treatment, while others experience worsening lung disease that requires antibiotic therapy or may lead to death. Currently available clinical tools are limited in their ability to predict which patients will experience disease progression.

This observational study aims to better understand how the body's immune response and nutritional status are related to disease progression in adults with confirmed or suspected NTM-PD. In particular, the study focuses on T cells, a type of immune cell that plays an important role in controlling mycobacterial infections. Prior research suggests that impaired T-cell function may contribute to disease progression in NTM-PD, but most studies have relied on blood samples rather than immune cells from the lung, where the infection occurs.

In this study, immune cells obtained from bronchoalveolar lavage fluid during clinically indicated bronchoscopy will be analyzed to assess inhibitory and exhausted T-cell profiles in the lung. In addition, systemic T-cell function will be evaluated using the mitogen response from the QuantiFERON-TB Gold Plus blood test. Nutritional status and body composition will also be assessed, as poor nutrition is known to affect immune function and disease outcomes.

Participants will be followed over time as part of routine clinical care. The primary outcome of the study is the time from enrollment to the initiation of antibiotic treatment due to clinical disease progression. Secondary outcomes include identifying immune predictors of treatment initiation, examining the relationship between nutritional status and immune activity, evaluating changes in body composition and immune markers with disease progression, and determining whether immune and nutritional measures improve prediction of mortality beyond established clinical risk scores.

By integrating lung immune profiling, blood-based immune testing, nutritional assessment, and clinical data, this study seeks to improve risk stratification in NTM-PD. The results may help identify patients at higher risk for disease progression and poor outcomes, support more personalized monitoring strategies, and inform future studies targeting immune and nutritional pathways in NTM-PD.

Conditions

  • Nontuberculous Mycobacterial Pulmonary Disease
  • Nontuberculous Mycobacterial Lung Disease

Sponsors & Collaborators

  • SMG-SNU Boramae Medical Center

    collaborator OTHER

  • Seoul National University Hospital

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-01-31
Primary Completion
2027-12-31
Completion
2027-12-31

Countries

  • South Korea

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07363798 on ClinicalTrials.gov