Airway Clearance System (K031876) Phase IV Device Efficacy

Study Purpose

Phase IV interventional study of adults (18 to 55) having a diagnosis of cystic fibrosis (mild, moderate or severe). The study is completely voluntary and is designed to measure participants use and the effectiveness of the device within the 510K indication of: airway clearance therapy when external manipulation of the thorax. The trial period shall be 30 days and include use of a FDA cleared pulse oximetry monitor (K131111), manual spirometer as well as completion of semi-weekly participant survey.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Eligible Ages 18 Years - 55 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

- Previously diagnosed with cystic fibrosis (mild, moderate or severe) - Prescribed (licensed medical provider) airway clearance device/system for at home, self-treatment for airway clearance - Physically able to perform self-treatment or treatment by an at home medical provider

Exclusion Criteria:

- History of tobacco use - History of excessive alcohol consumption, more than 2 drinks per day, 10 per week - Any other medical condition that would preclude use of an airway clearance device - Previously diagnosed with major cardiological disease

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Mack Biotech, Corp.
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Leigh J Mack, MD, PhD, CPI
Principal Investigator Affiliation Mack Biotech, Corp.
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Recruiting
Countries United States

The disease, disorder, syndrome, illness, or injury that is being studied.

Cystic Fibrosis, Pulmonary
Study Website: View Trial Website
Additional Details

Phase IV interventional study, of participants with cystic fibrosis with mild, moderate or severe conditions, for the efficacy of the Electro Flo Percussor, Model 5000 (K031876), Regulation Number: 21 CFR 868.5665, with current FDA indication of: provide airway clearance therapy when external manipulation of the thorax is the physician's choice of treatment. Indications for this form of therapy are described by the American Association for Respiratory Care (AARC) in the Clinical Practices Guidelines for Postural Drainage Therapy ( I ) (1991). According to AARC guidelines, specific indications for external manipulation of the thorax include evidence or a suggestion of retained secretions, evidence that the patient is having difficulty with the secretion clearance, or presence of atelectasis caused by mucus plugging. In addition, the Med Systems Electro Flo Percussor Model 5000 is also indicated for external manipulation of the thorax to promote airway clearance or improve bronchial drainage for purposes of collecting mucus for diagnostic evaluation.

Arms & Interventions


Other: Active Treatment

Active arm, Electro Flo Percussor, Model 5000 airway clearance system for daily basis as needed (pro re nata).


Device: - Electro Flo Percussor, Model 5000

FDA 510K K031876 Regulation Number: 21 CFR 868.5665 Regulation Name: Percussor, Powered-Electric Regulation Class: II Product Code: BY1

Contact a Trial Team

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MED Systems, Inc., San Diego, California




MED Systems, Inc.

San Diego, California, 92117

Site Contact

Steffanie Mavros, BSc


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