News Release

Temple treats 1st patient in trial of RejuvenAir Metered Cryospray System for COPD with CB

Business Announcement

Temple University Health System

Dr. Gerard Criner

image: Gerard J. Criner, MD, FACP, FACCP, Chair and Professor of Thoracic Medicine and Surgery at the Lewis Katz School of Medicine at Temple University and Director of the Temple Lung Center. view more 

Credit: Temple University Health System

(Philadelphia, PA) - Temple University Hospital has treated the first patient in a multicenter international clinical trial utilizing the RejuvenAir® System for the treatment of patients suffering from moderate to severe chronic obstructive pulmonary disease (COPD) with chronic bronchitis. Chronic bronchitis, a subset of COPD, is characterized by a productive cough that persists for months or years. Chronic bronchitis is especially problematic for patients with COPD because it is associated with a significant daily symptom burden and increases the risk for hospitalization and death.

Chronic bronchitis represents a significant unmet clinical need for patients with COPD; currently there are no approved therapies to effectively treat this condition. As such, the RejuvenAir® System was designated as a Breakthrough Medical Device by the Food and Drug Administration in March 2019 and simultaneously received approval under its Investigational Device Exemption (IDE) to begin this double-blind, sham-controlled, prospective, multicenter, randomized clinical trial.

Gerard J. Criner, MD, FACP, FACCP, Chair and Professor of Thoracic Medicine and Surgery at the Lewis Katz School of Medicine at Temple University and Director of the Temple Lung Center, is the overall principal investigator of this multicenter international study.

"This clinical trial offers patients who suffer from COPD with chronic bronchitis a procedural option that has the potential to address more than just symptoms," Dr. Criner said. "We are pleased here at the Temple Lung Center to be able to expand the treatment and clinical trial options for our patients with this long-term, progressive disease."

The RejuvenAir® Metered Cryospray ("MCS") procedure delivers metered doses of liquid nitrogen spray at a temperature of -196 degrees Celsius to targeted areas of the diseased airways. The RejuvenAir® System is designed to ablate and instantaneously freeze damaged cilia and mucus-producing cells, thus allowing new, healthy cells to regrow in their place.

COPD affects approximately 16 million Americans, according to the Centers for Disease Control and Prevention (CDC). An estimated 9 million of those individuals have also been diagnosed with chronic bronchitis, a disease subset of COPD. The American Lung Association defines chronic bronchitis as a productive cough (one that produces mucus) lasting for at least three months and occurring multiple times over at least two years. There is no cure for chronic bronchitis or COPD, which is the third-leading cause of death in the United States.

The clinical trial will examine the effectiveness of the RejuvenAir® System via two primary outcome measures, exacerbations and quality of life. Acute Exacerbation Rate is calculated from baseline to 12 months post treatment, and the St. George's Respiratory Questionnaire is a patient-reported outcome scale that measures quality of life.

"COPD exacerbations and symptoms greatly impact patients' quality of life," Dr. Criner added. "At the Temple Lung Center, we are committed to research that addresses this, as quality of life is one of our patients' chief concerns."


The clinical trial will enroll 330 participants across 30 sites in the United States, Europe and Canada. It is sponsored by CSA Medical, Inc., manufacturer of the RejuvenAir® System.

Editor's Note: Dr. Criner has received de minimis consulting fees of less than $500 from CSA Medical, Inc., as of the date of this publication.

About Temple Health

Temple University Health System (TUHS) is a $2.2 billion academic health system dedicated to providing access to quality patient care and supporting excellence in medical education and research. The Health System consists of Temple University Hospital (TUH); TUH-Episcopal Campus; TUH-Jeanes Campus; TUH-Northeastern Campus; The Hospital of Fox Chase Cancer Center and Affiliates, an NCI-designated comprehensive cancer center; Temple Transport Team, a ground and air-ambulance company; Temple Physicians, Inc., a network of community-based specialty and primary-care physician practices; and Temple Faculty Practice Plan, Inc., TUHS's physician practice plan comprised of more than 500 full-time and part-time academic physicians in 20 clinical departments. TUHS is affiliated with the Lewis Katz School of Medicine at Temple University.

Temple Health refers to the health, education and research activities carried out by the affiliates of Temple University Health System (TUHS) and by the Katz School of Medicine. TUHS neither provides nor controls the provision of health care. All health care is provided by its member organizations or independent health care providers affiliated with TUHS member organizations. Each TUHS member organization is owned and operated pursuant to its governing documents.

It is the policy of Temple University Health System that there shall be no exclusion from, or participation in, and no one denied the benefits of, the delivery of quality medical care on the basis of race, ethnicity, religion, sexual orientation, gender, gender identity/expression, disability, age, ancestry, color, national origin, physical ability, level of education, or source of payment.

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