Working... Menu

Phase I Assessment of Hypertonic Saline in Moderate to Severe Asthmatics

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03556683
Recruitment Status : Recruiting
First Posted : June 14, 2018
Last Update Posted : October 5, 2018
National Heart, Lung, and Blood Institute (NHLBI)
Information provided by (Responsible Party):
University of North Carolina, Chapel Hill

Brief Summary:
Purpose: To determine if inhaled hypertonic saline (HS) accelerates airway mucociliary clearance (MCC) in well-controlled moderate to severe asthmatics.

Condition or disease Intervention/treatment Phase
Moderate to Severe Asthma Device: Hypertonic Saline Not Applicable

Detailed Description:

Participants: Non-smoking adults with well controlled moderate to severe asthma

Procedures (methods): After undergoing a general health screen, participants will undergo a lung transmission scan to create an image of the lungs. Participants will then inhale nebulized radiolabeled aerosol and sit in front of a gamma camera for 2 hours to measure clearance of radiolabeled particles from the lungs (procedure called gamma scintigraphy), which will be used to calculate baseline MCC. Participants will then inhale HS, with spirometry performed before and at regular intervals after HS to assess for clinically significant reductions in lung function. Vital signs and symptom questionnaires will be administered as well. If they are deemed tolerant to HS (i.e. no clinically significant deterioration in lung function, vital signs, or symptom questionnaire scores), participants will move forward to the next study visit. At the next visit, participants will again inhale nebulized HS and will undergo a gamma scintigraphy scan immediately after to measure the acute effects of HS on MCC. At a separate visit, participants will inhale nebulized HS and undergo gamma scintigraphy scan 4 hours later to measure prolonged effects of HS on MCC.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 24 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Phase I Assessment of Hypertonic Saline in Moderate to Severe Asthmatics
Actual Study Start Date : October 1, 2018
Estimated Primary Completion Date : July 2021
Estimated Study Completion Date : July 2021

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Asthma

Arm Intervention/treatment
Experimental: 7% Hypertonic Saline
Subjects will inhale 4 mL of 7% hypertonic saline before having a Mucociliary Clearance (MCC) scan
Device: Hypertonic Saline
4 mL of 7% hypertonic saline

Primary Outcome Measures :
  1. Change in MCC from Baseline to Post Hypertonic Saline Inhalation [ Time Frame: Baseline, immediately after inhaled Hypertonic Saline, within approximately '15' minutes ]

Secondary Outcome Measures :
  1. Effects of HS on MCC by testing [ Time Frame: Baseline, 4 hours after Hypertonic Saline ]
  2. The proportion of moderate to severe asthmatics who are deemed 'intolerant' to HS [ Time Frame: 30 minutes post-HS ]
    A persistent reduction in FEV1 of greater than or equal to 10% from that day's baseline

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Age 18-60 of both genders-
  • Moderate to severe asthma at baseline (determined by Step 3 therapy or greater or by asthma impairment) and well-controlled asthma at the time of enrollment, as determined by NHLBI Expert Panel Report 3 guidelines for diagnosis and treatment of asthma.
  • Negative pregnancy test for females who are not s/p hysterectomy with oophorectomy.
  • FEV1 (forced expiratory volume 1 sec) of at least 70% of predicted for age, sex, height, and race/ethnicity (without use of bronchodilating medications for 12 hours or long acting beta agonists for 24 hours).

Exclusion Criteria:

Subjects who meet any of these criteria are not eligible for enrollment as study participants:

  1. Clinical Contraindications:

    Any chronic medical condition considered by the PI as a contraindication to the study including significant cardiovascular disease, diabetes, chronic renal disease, chronic thyroid disease, history of chronic infections/immunodeficiency, or history of tuberculosis Any acute infection requiring antibiotics within 4 weeks of study. Mental illness or history of drug or alcohol abuse that, in the opinion of the investigator, would interfere with the participant's ability to comply with study requirements.

    Medications which may impact the results of the study treatment, or may interfere with any other medications potentially used in the study (to include steroids, beta antagonists, non-steroidal anti-inflammatory agents) Active smoking to include e-cigarettes within 1 year of the study, or lifetime of > 10 pack-years of smoking Allergy/sensitivity to study drugs, or their formulations. History of intubation for asthma Unwillingness to use reliable contraception if sexually active (birth control pills/patch, condoms).

    Viral upper respiratory tract infection within 4 weeks of challenge. Radiation exposure history in the past year that would cause the participant to exceed Federal radiation safety guidelines.

  2. Pregnant women and children (< 18 years as this is age of majority in NC) will also be excluded since the risks associated with hypertonic saline inhalation to the fetus or child and the risk of radiation are unknown and cannot be justified.
  3. Use of the following medications:

    1. Systemic corticosteroids; subjects with systemic corticosteroid-dependent asthma will be excluded. All use of systemic steroids in the last year will be reviewed by a study physician.
    2. Use of daily theophylline within the past month
    3. Use of any immunosuppressant/immunomodulatory therapy within the preceding 12 months
    4. Use of beta blocking medications
    5. Receipt of LAIV (Live Attenuated Influenza Vaccine), also known as FluMist®, within the prior 30 days, or any vaccine within the prior 5 days
    6. Multivitamins, Vitamin C or E or herbal medications in the 4 days prior to the treatment visit
    7. Non-steroidal anti-inflammatory drugs in the 4 days prior to the treatment visit
    8. Subjects must be able to withhold morning doses of maintenance inhalers on the treatment days, including long acting bronchodilators and inhaled corticosteroids.
  4. Allergy/sensitivity to study drugs or their formulations: Known IgE-(Immunoglobulin E) mediated hypersensitivity to albuterol, diphenhydramine or corticosteroids.
  5. Physical/laboratory indications:

    1. Abnormalities on lung auscultation
    2. Temperature > 37.8
    3. Systolic BP >150 mm Hg or < 90 mm Hg or diastolic BP> 90 mm Hg or < 50
    4. Oxygen saturation of < 93%
  6. Inability or unwillingness of a participant to give written informed consent.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03556683

Layout table for location contacts
Contact: Sally S Ivins, BA 919-966-7157
Contact: Allison Burbank, MD (919) 962-5136

Layout table for location information
United States, North Carolina
Center for Environmental Medicine, Asthma and Lung Biology Recruiting
Chapel Hill, North Carolina, United States, 27599
Contact: Research Coordinator    919-966-7157   
Sponsors and Collaborators
University of North Carolina, Chapel Hill
National Heart, Lung, and Blood Institute (NHLBI)
Layout table for investigator information
Principal Investigator: David Peden, MD, MS CEMALB

Layout table for additonal information
Responsible Party: University of North Carolina, Chapel Hill Identifier: NCT03556683     History of Changes
Other Study ID Numbers: 17-3209
17-0973 ( Other Identifier: UNC RAMSES Number )
2P01HL108808-06 ( U.S. NIH Grant/Contract )
First Posted: June 14, 2018    Key Record Dates
Last Update Posted: October 5, 2018
Last Verified: October 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Device Product Not Approved or Cleared by U.S. FDA: No
Pediatric Postmarket Surveillance of a Device Product: No

Keywords provided by University of North Carolina, Chapel Hill:
asthma, hypertonic saline