trūFreeze® Spray Cryotherapy Patient Registry

This is a prospective, multi-center registry of patients who are currently undergoing spray cryotherapy using the trūFreeze® device. The registry population consists of patients who are being treated using the spray cryotherapy trūFreeze® device for the removal of unwanted tissue, such as malignant or pre-malignant conditions in the pulmonary or gastrointestinal settings.

Patients eligible to participate in the registry will have disease and treatment specific data collected throughout therapy and long-term follow-up. Subjects will be considered to have completed the registry when data from the 5 year follow-up visit has been collected. The beginning of the follow-up period commences with the first endoscopic treatment session.

Subjects may be withdrawn prior to this for any of the following reasons:

1. Death, or
2. Lost to Follow-Up, or
3. Withdrawal of consent, or
4. Discontinuation by the investigator. Three attempts at contact using two different methods are required prior to determination that the subject is lost to follow-up. Attempts at contact must be with certified letters OR documented telephone contact.

The registry will utilize electronic case report forms using a web-based platform housed at the University of North Carolina at Chapel Hill. Access to the database will be limited to individuals involved in the research registry and will require a unique user ID and password. All access to the database and web-based application will be encrypted (HTTPS) and electronic systems compliant with applicable privacy and security regulations. To maintain patient confidentiality, all subjects will be assigned a registry identification number, and this will be the only link between subject identity and treatment information. Read-only access will be provided to any personnel who is not an administrator or responsible for data entry.