Scientists compare sputum collection methods to improve diagnosis of lung infection

NCT ID NCT01150721

First seen Jun 24, 2026 · Last updated Aug 14, 2026 · Updated 10 times

Summary

This study looked at different ways to collect sputum (phlegm) from people with a lung infection called nontuberculous mycobacterial (NTM) infection. The goal was to see which method gives the best samples for diagnosing and understanding the infection. Participants provided throat swabs, coughed-up sputum, and sputum produced after using a nebulizer. No treatment was given; the study only compared collection methods.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States