Evaluation of the ClariFix™ Cryotherapy Device in Subjects With Chronic Rhinitis (FROST)
Clinical Evaluation of Safety and Efficacy for the ClariFix™ Cryotherapy Device in Subjects With Chronic Rhinitis
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
California
-
East Palo Alto, California, United States, 94303
- California Sleep Institute
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Sacramento, California, United States, 95661
- Sacramento Ear, Nose, and Throat
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San Francisco, California, United States, 94108
- San Francisco Otolaryngology Medical Group
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-
Florida
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Boca Raton, Florida, United States, 33487
- Ear, Nose, and Throat Associates of South Florida
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Pennsylvania
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Bethlehem, Pennsylvania, United States, 18017
- Bethlehem Ear, Nose, and Throat
-
-
Virginia
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Norfolk, Virginia, United States, 23507
- EVMS Otolaryngology
-
-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Subject is >21 years of age
- Subject has moderate to severe symptoms of rhinorrhea (individual symptom rating of 2 or 3), mild to severe symptoms of congestion (individual symptom rating of 1, 2 or 3) and a minimum TNSS score of 4 (out of 12) at the time of the treatment visit, which have been present for > 6 months.
- Subject has had documented allergy test within the last 10 years that defines whether or not subject has allergies to perennial and seasonal allergens or is willing to have one performed prior to study exit.
- Subject has been dissatisfied with medical management, defined as usage of intranasal steroids for a minimum of 4 weeks without adequate symptom relief by the subject's assessment.
- Subject has signed IRB-approved informed consent form
Exclusion Criteria:
- Subject has clinically significant anatomic obstructions that in the investigator's opinion limit access to the posterior nose, including but not limited to septal deviation or perforation, nasal polyps, sinonasal tumor.
- Subject has had any prior sinus or nasal surgery that significantly alters the anatomy of the posterior nose.
- Subject has active nasal or sinus infection.
- Subject has moderate to severe ocular symptoms.
- Subject has a history of nosebleeds in the past 3 months.
- Subject has a history of rhinitis medicamentosa.
- Subject has had prior head or neck irradiation
- Subject has active coagulation disorder or is receiving anti-coagulants which cannot be safely stopped for 4 weeks (excluding aspirin).
- Subject is pregnant.
- Subject is participating in another clinical research study.
- Subject has an allergy or intolerance to anesthetic agent.
- Subject has cryoglobulinemia, paroxysmal cold hemoglobinuria, cold urticaria, Raynaud's disease, and/or, open and/or infected wounds at or near the target tissue.
- Any physical condition that in the investigator's opinion would prevent adequate study participation or pose increased risk.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: Treatment with the ClariFix Device
Bilateral ablation of nasal tissue for treatment of chronic rhinitis
|
Cryoablation in the nasal passageway using the ClariFix Device
|
What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Change From Baseline in Symptom Severity
Time Frame: 90 days post treatment
|
Effectiveness will be assessed by the mean change in nasal symptoms using the 4-symptom rTNSS (reflective Total Nasal Symptom Score).
The rTNSS is the sum of 4 individual patient-rated symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, each evaluated using a scale of 0=None, 1=Mild, 2=Moderate, and 3=Severe.
The rTNSS has a possible score of 0-12.
The reflective scores are based on the participant's evaluation of symptom severity over the preceding 24 hours.
A change of 1 or more is considered the minimum clinically important difference.
|
90 days post treatment
|
|
Device- and/or Procedure-related Serious Adverse Events
Time Frame: 90 days post treatment
|
Safety will be evaluated based on the frequency of device- and/or procedure-related serious adverse events
|
90 days post treatment
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Change From Baseline in the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ)
Time Frame: 90 days post treatment
|
The RQLQ is a validated quality of life questionnaire that evaluates functional problems associated with rhinitis.
The questionnaire assess 7 domains: activities, sleep, nose symptoms, eye symptoms, non nose/eye symptoms, practical problems, and emotional function.
Each question is scores on a 7-point scale (0=not impaired at all, 6=severely impaired).
A domain and total scores are based on the mean of all answered items in that domain resulting in domain or total scores ranging from 0 to 6.
An average change on 0.5 or more is considered a minimal clinically important difference.
|
90 days post treatment
|
Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Change From Baseline in Symptom Severity
Time Frame: 1, 3, 6, 9, 12, 15, 18, 21, and 24 months post procedure
|
Median change in nasal symptoms using the 4-symptom rTNSS (reflective Total Nasal Symptom Score).
The rTNSS is the sum of 4 individual patient-rated symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, each evaluated using a scale of 0=None, 1=Mild, 2=Moderate, and 3=Severe.
The rTNSS has a possible score of 0-12.
The reflective scores are based on the participant's evaluation of symptom severity over the preceding 24 hours.
A change of 1 point or more is considered the minimum clinically important difference.
|
1, 3, 6, 9, 12, 15, 18, 21, and 24 months post procedure
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
General Publications
- Chang MT, Song S, Hwang PH. Cryosurgical ablation for treatment of rhinitis: A prospective multicenter study. Laryngoscope. 2020 Aug;130(8):1877-1884. doi: 10.1002/lary.28301. Epub 2019 Sep 30.
- Ow RA, O'Malley EM, Han JK, Lam KK, Yen DM. Cryosurgical Ablation for Treatment of Rhinitis: Two-Year Results of a Prospective Multicenter Study. Laryngoscope. 2021 Sep;131(9):1952-1957. doi: 10.1002/lary.29453. Epub 2021 Feb 22.
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- CT-0003
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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