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Mucus plugging is one of the causes of an asthma exacerbation, or "attack". With this study, we are asking people who have asthma which requires daily medication to keep in in control to inhale a strong salt water solution. We will use a lung scan to see how your lungs clear the mucus with the salt solution inhalations.

Age & Gender

  • 18 years ~ 60 years
  • Male, Female


North Carolina (Statewide)


If you complete the entire protocol you will earn $875

In-person visits : 8
Total length of participation : 3 1/2 months

Looking for Specific Volunteers

Able to participate:

  • Otherwise healthy, well controlled individuals who use a combination inhaler (bronchodilator and inhaled steroids) every day for asthma.

Not eligible if:

  • No cold or flu symptoms
  • No other major, uncontrolled medical problems.

Contact the Team

Visit Location

100% Remote (online, phone, text)

Additional Study Information

Principal Investigator

David Peden
Center for Environmental Medicine Asthma and Lung Biology (CEMALB)

Study Topics

Lungs and Breathing

IRB Number


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