ClinicalTrials.gg
CompletedNCT01802203Updated Jul 25, 2022

trūFreeze® Spray Cryotherapy Patient Registry

An observational study in Barrett Esophagus, Esophageal Dysplasia and Esophageal Neoplasm, sponsored by US Endoscopy Group Inc.. Completed at 16 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-07-25.

Sponsored by US Endoscopy Group Inc. · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
275
Ages
18 Years and older
Sex
All
01

Study summary

To collect efficacy and outcomes data related to the use of trūFreeze® spray cryotherapy for the treatment of unwanted tissue in the pulmonary and gastrointestinal settings.

Read the detailed description

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Subjects may be withdrawn prior to this for any of the following reasons: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

All data requested on the case report form must be recorded. All missing data must be explained. The system allows sites to directly enter data electronically, however sites are still responsible for ensuring they have source documents that support all data entered electronically that are separate and verifiable. The registry system will maintain an audit trail that captures when electronic entries are changed, what the change was, and who made the change.

The investigators will ensure the capability for inspections of applicable registry-related facilities (e.g. pharmacy, diagnostic laboratory, etc.). The registry will be monitored by the sponsor, and allow auditing by the Institutional Review Board, government regulatory bodies, and University compliance and quality assurance groups of all registry related documents (e.g. source documents, regulatory documents, data collection instruments, registry data, etc.).

02

Conditions studied

  • Barrett Esophagus
  • Esophageal Dysplasia
  • Esophageal Neoplasm
  • Esophageal Stenosis
  • Bronchial Neoplasm
  • Stenosis of Bronchus or Trachea

Keywords

  • Barrett esophagus
  • Esophageal dysplasia
  • Upper gastrointestinal squamous dysplasia
  • Esophageal cancer
  • Endobronchial cancer
  • Central airway cancer
  • Central airway precancerous disease
  • Central airway granulation tissue
  • Central airway papillomatosis
  • Central airway sarcoidosis
  • Central airway tuberculosis
  • Tracheal stenosis
  • Bronchial stenosis
03

In context

Barrett Esophagus

316 studies on the registry are indexed under Barrett Esophagus; 62 are open to participants now.

This study's enrollment of 275 is above the median of 137 across 117 observational studies indexed under Barrett Esophagus.

Browse Barrett Esophagus studies →

Lead sponsor

US Endoscopy Group Inc. is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients who are being treated using the trūFreeze® spray cryotherapy device for the removal of unwanted tissue, such as malignant or pre-malignant conditions in the pulmonary or gastrointestinal (GI) setting.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. GI conditions include:

    • Barrett's Esophagus (BE) with or without dysplasia
    • Squamous dysplasia
    • Esophageal cancer, any stage
  2. Pulmonary conditions include:

    • Any endobronchial cancerous or precancerous disease located within the central airways
    • Any non-malignant endobronchial process of the central airways that results in abnormal mucosa (i.e. granulation tissue, papillomatosis, sarcoidosis, tuberculosis, etc.)
    • Tracheal or bronchial stenosis (malignant or benign)
    • Any pleural disease, malignant or benign All subjects are required to be able to provide written informed consent

Exclusion criteria

Exclusion Criteria:

  1. Gastrointestinal Exclusion Criteria

    • Contraindication to spray cryotherapy.
    • Prior treatment with spray cryotherapy. Previous or concurrent treatment using other mucosal therapies such as endoscopic mucosal resection or radiofrequency ablation is acceptable.
    • Below 18 years of age
  2. Pulmonary Exclusion Criteria

    • Contraindication to spray cryotherapy.
    • Prior treatment with spray cryotherapy. Previous or concurrent treatment using other mucosal therapies is acceptable.
    • Tracheoesophageal fistula.
    • Bronchopleural fistula.
    • Current untreated pneumothorax.
    • Clinically significant hypoxia refractory to supplemental oxygen therapy.
    • Below 18 years of age
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
275 participants (actual)
Target follow-up
5 Years
Patient registry
Yes

Groups and cohorts

  • truFreeze spray cryotherapy

    truFreeze Spray Cryotherapy administered as routine clinical care

    Device: truFreeze Spray Cryotherapy

Interventions

  • DevicetruFreeze Spray Cryotherapy

    spray cryotherapy

06

What researchers measure

Primary outcomes

  1. Collect efficacy and outcome data related to the use of trūFreeze® spray cryotherapy for treatment of unwanted tissue in the pulmonary and gastrointestinal settings.

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

    Time frame: 5 years

Secondary outcomes

  1. Collect safety data related to the use of trūFreeze® spray cryotherapy for treatment in the pulmonary and gastrointestinal settings.

    All adverse events occurring during the registry period must be recorded. The clinical course of each event should be followed until resolution, stabilization, or until it has been determined that the registry treatment or participation is not the cause. Serious adverse events that are still ongoing at the end of the Spray Cryotherapy Patient Registry registry period must be followed up to determine the final outcome. Any serious adverse event that occurs after the registry period and is considered to be possibly related to the trūFreeze® spray cryotherapy device or registry participation should be recorded and reported immediately.

    Time frame: 5 years

07

Study locations

16 sites
  • Scripps Green Hosptial
    La Jolla, California 92037, United States
  • University of Colorado Denver
    Denver, Colorado 80045, United States
  • Borland-Groover Clinic
    Jacksonville, Florida 32256, United States
  • Ochsner Medical Center
    Kenner, Louisiana 70065, United States
  • University of Maryland
    Baltimore, Maryland 21210, United States
  • Walter Reed National Military Medical Center
    Bethesda, Maryland 20889, United States
  • Massachusetts General Hosptial
    Boston, Massachusetts 02114, United States
  • Boston University Medical Center
    Boston, Massachusetts 02118, United States
  • Beth Israel Deaconess Medical Center
    Boston, Massachusetts 02215, United States
  • ProHEALTH Care Associates
    Lake Success, New York 11042, United States
  • NYU
    New York, New York 10016, United States
  • University of Rochester/Strong Memorial Medical Center
    Rochester, New York 14642, United States
  • University of North Carolina at Chapel Hill
    Chapel Hill, North Carolina 27599, United States
  • Ahuja Medical Center-CWR University Hosptials
    Beachwood, Ohio 44122, United States
  • Rhode Island Hospital
    Providence, Rhode Island 02903, United States
  • Medical University of South Carolina
    Charleston, South Carolina 29425, United States
08

References and documents

Publications

  • Siegel R, Naishadham D, Jemal A. Cancer statistics, 2012. CA Cancer J Clin. 2012 Jan-Feb;62(1):10-29. doi: 10.3322/caac.20138. Epub 2012 Jan 4. PubMed 22237781 ↗
  • Heier SK. Evaluation of candidate therapies for ablation of Barrett's in a canine model. Gastrointestinal endoscopy. 1996;43(4):337
  • Pasricha PJ, Hill S, Wadwa KS, Gislason GT, Okolo PI 3rd, Magee CA, Canto MI, Kuo WH, Baust JG, Kalloo AN. Endoscopic cryotherapy: experimental results and first clinical use. Gastrointest Endosc. 1999 May;49(5):627-31. doi: 10.1016/s0016-5107(99)70393-7. PubMed 10228263 ↗
  • Greenwald BD, Dumot JA, Horwhat JD, Lightdale CJ, Abrams JA. Safety, tolerability, and efficacy of endoscopic low-pressure liquid nitrogen spray cryotherapy in the esophagus. Dis Esophagus. 2010 Jan;23(1):13-9. doi: 10.1111/j.1442-2050.2009.00991.x. Epub 2009 Jun 9. PubMed 19515183 ↗
  • Grana L, Ablin RJ, Goldman S, Milhouse E Jr. Freezing of the esophagus: histological changes and immunological response. Int Surg. 1981 Oct-Dec;66(4):295-301. PubMed 7345039 ↗
  • Loprinzi CL, Foote RL, Michalak J. Alleviation of cytotoxic therapy-induced normal tissue damage. Semin Oncol. 1995 Apr;22(2 Suppl 3):95-7. PubMed 7740323 ↗
  • Rodgers BM, Pappelis P. Profound endoesophageal cryotherapy. Cryobiology. 1985 Feb;22(1):86-92. doi: 10.1016/0011-2240(85)90011-2. PubMed 3979079 ↗
  • Laugier P, Berger G. Assessment of echography as a monitoring technique for cryosurgery. Ultrason Imaging. 1993 Jan;15(1):14-24. doi: 10.1177/016173469301500102. PubMed 8328116 ↗
  • Reiser M, Drukier AK, Ultsch B, Feuerbach S. The use of CT in monitoring cryosurgery. Eur J Radiol. 1983 May;3(2):123-8. PubMed 6873073 ↗
  • Myers B, Donovan W. Cryosurgery of the anus. South Med J. 1977 Jan;70(1):17-8. doi: 10.1097/00007611-197701000-00008. PubMed 841369 ↗
  • McKelvie P. Cryotherapy in the upper air and food passages. Proc R Soc Med. 1975 Oct;68(10):610. doi: 10.1177/003591577506801005. No abstract available. PubMed 54925 ↗
  • Kuflik EG. Cryosurgery updated. J Am Acad Dermatol. 1994 Dec;31(6):925-44; quiz 944-6. doi: 10.1016/s0190-9622(94)70261-6. PubMed 7962774 ↗
  • Rodgers BM, McDonald AP, Talbert JL, Donnelly WH. Morphologic and functional effects of esophageal cryotherapy. J Thorac Cardiovasc Surg. 1979 Apr;77(4):543-9. PubMed 423587 ↗
  • Kantsevoy SV, Cruz-Correa MR, Vaughn CA, Jagannath SB, Pasricha PJ, Kalloo AN. Endoscopic cryotherapy for the treatment of bleeding mucosal vascular lesions of the GI tract: a pilot study. Gastrointest Endosc. 2003 Mar;57(3):403-6. doi: 10.1067/mge.2003.115. PubMed 12612530 ↗
  • Greenwald BD, Dumot JA, Abrams JA, Lightdale CJ, David DS, Nishioka NS, Yachimski P, Johnston MH, Shaheen NJ, Zfass AM, Smith JO, Gill KR, Burdick JS, Mallat D, Wolfsen HC. Endoscopic spray cryotherapy for esophageal cancer: safety and efficacy. Gastrointest Endosc. 2010 Apr;71(4):686-93. doi: 10.1016/j.gie.2010.01.042. PubMed 20363410 ↗
  • Dumot JA, Vargo JJ 2nd, Falk GW, Frey L, Lopez R, Rice TW. An open-label, prospective trial of cryospray ablation for Barrett's esophagus high-grade dysplasia and early esophageal cancer in high-risk patients. Gastrointest Endosc. 2009 Oct;70(4):635-44. doi: 10.1016/j.gie.2009.02.006. Epub 2009 Jun 25. PubMed 19559428 ↗
  • Finley DJ, Dycoco J, Sarkar S, Krimsky WS, Sherwood JT, Dekeratry D, Downie G, Atwood J, Fernando HC, Rusch VW. Airway spray cryotherapy: initial outcomes from a multiinstitutional registry. Ann Thorac Surg. 2012 Jul;94(1):199-203; discussion 203-4. doi: 10.1016/j.athoracsur.2012.01.112. Epub 2012 Apr 18. PubMed 22516831 ↗
  • Au JT, Carson J, Monette S, Finley DJ. Spray cryotherapy is effective for bronchoscopic, endoscopic and open ablation of thoracic tissues. Interact Cardiovasc Thorac Surg. 2012 Oct;15(4):580-4. doi: 10.1093/icvts/ivs192. Epub 2012 Jul 18. PubMed 22811511 ↗
  • Krimsky WS, Rodrigues MP, Malayaman N, Sarkar S. Spray cryotherapy for the treatment of glottic and subglottic stenosis. Laryngoscope. 2010 Mar;120(3):473-7. doi: 10.1002/lary.20794. PubMed 20058314 ↗
  • Fernando HC, Dekeratry D, Downie G, Finley D, Sullivan V, Sarkar S, Rivas R Jr, Santos RS. Feasibility of spray cryotherapy and balloon dilation for non-malignant strictures of the airway. Eur J Cardiothorac Surg. 2011 Nov;40(5):1177-80. doi: 10.1016/j.ejcts.2011.02.062. Epub 2011 Apr 8. PubMed 21482131 ↗
  • Evantash E, Hill EC, Pernoll ML. Benign disorders of the uterine cervix. Current Obstetric& Gynecologic, Diagnosis & Treatment. 9th ed. Beijing: The McGraw-Hill Companies. 2003:677-692
  • Holschneider CH. Premalignant and malignant disorders of the uterine cervix. Current Diagnosis and Treatment Obstetrics and Gynecology,. 2007:833-854
  • Jacob M, Broekhuizen FF, Castro W, Sellors J. Experience using cryotherapy for treatment of cervical precancerous lesions in low-resource settings. Int J Gynaecol Obstet. 2005 May;89 Suppl 2:S13-20. doi: 10.1016/j.ijgo.2005.01.026. PubMed 15823262 ↗
  • Stulberg DL, Crandell B, Fawcett RS. Diagnosis and treatment of basal cell and squamous cell carcinomas. Am Fam Physician. 2004 Oct 15;70(8):1481-8. PubMed 15526735 ↗
  • Jaros E, Priborsky J. [15 years' clinical experience in cryodestruction of malignant disorders in the anorectum]. Rozhl Chir. 1999 Sep;78(9):473-7. Czech. PubMed 11077879 ↗
  • Cestari A, Guazzoni G, dell'Acqua V, Nava L, Cardone G, Balconi G, Naspro R, Montorsi F, Rigatti P. Laparoscopic cryoablation of solid renal masses: intermediate term followup. J Urol. 2004 Oct;172(4 Pt 1):1267-70. doi: 10.1097/01.ju.0000140073.57974.82. PubMed 15371821 ↗
  • Powell T, Whelan C, Schwartz BF. Laparoscopic renal cryotherapy: biology, techniques and outcomes. Minerva Urol Nefrol. 2005 Jun;57(2):109-18. PubMed 15951735 ↗
  • Goldberg SR, Neifeld JP. Incidentally discovered gallbladder cancer: role of cryotherapy. J Surg Oncol. 2004 Aug 1;87(2):91-4. doi: 10.1002/jso.20075. PubMed 15282703 ↗
  • Dong K, Li B, Guan QL, Huang T. Analysis of multiple factors of postsurgical gastroparesis syndrome after pancreaticoduodenectomy and cryotherapy for pancreatic cancer. World J Gastroenterol. 2004 Aug 15;10(16):2434-8. doi: 10.3748/wjg.v10.i16.2434. PubMed 15285038 ↗
  • Johnston MH, Eastone JA, Horwhat JD, Cartledge J, Mathews JS, Foggy JR. Cryoablation of Barrett's esophagus: a pilot study. Gastrointest Endosc. 2005 Dec;62(6):842-8. doi: 10.1016/j.gie.2005.05.008. PubMed 16301023 ↗
  • Johnston MH. Cryoablation of Dysplasia in Barrett's Esophagus (BE) and Early Stage Esophageal Cancer. Gastrointestinal endoscopy. 2006;63(5):AB223
  • Johnston MH. Reversal of barrett's esophagus with cryotherapy. The American journal of gastroenterology. 2003;98:S11
  • Johnston MH. Cryotherapy and other newer techniques. Gastrointest Endosc Clin N Am. 2003 Jul;13(3):491-504. doi: 10.1016/s1052-5157(03)00044-8. PubMed 14629105 ↗
  • Shaheen NJ, Greenwald BD, Peery AF, Dumot JA, Nishioka NS, Wolfsen HC, Burdick JS, Abrams JA, Wang KK, Mallat D, Johnston MH, Zfass AM, Smith JO, Barthel JS, Lightdale CJ. Safety and efficacy of endoscopic spray cryotherapy for Barrett's esophagus with high-grade dysplasia. Gastrointest Endosc. 2010 Apr;71(4):680-5. doi: 10.1016/j.gie.2010.01.018. PubMed 20363409 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Apr 2013, a primary completion of Jan 2022 and a completion of Apr 2022. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Feb 27, 2013
First posted
Mar 1, 2013
Start
Apr 2013
Primary completionActual
Jan 2022
CompletionActual
Apr 2022
Last update
Jul 25, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 25, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01802203
Lead sponsor
US Endoscopy Group Inc.
Responsible party
Sponsor
First posted
Mar 1, 2013
Start date
Apr 2013
Primary completion
Jan 2022
Completion
Apr 2022
Last update
Jul 25, 2022

Study contacts

Nicholas Shaheen, MD
principal investigator · University of North Carolina, Chapel Hill
Robert F Browning, MD
principal investigator · Walter Reed National Military Medical Center

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion