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Completed

NCT Number: NCT02820597

ClariFix Cryoablation Clinical Study

This is a single-arm pilot study designed to evaluate the feasibility of cryoablation in the nasal passageway, using the ClariFix device, to reduce the symptoms of chronic rhinitis.

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Key information

Age range

21 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

About this study

This is a small, prospective, multicenter, single-arm, self-controlled interventional feasibility study to evaluation cryoablation in the nasal passage as a treatment for chronic rhinitis. The ClariFix device is FDA-cleared device with the intended use for the destruction of unwanted tissue during surgical procedures, including in adults with chronic rhinitis.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Subject is >21 years of age
  • Subject has had moderate to severe symptoms of rhinorrhea and/or nasal congestion for >3 months (rTNSS rating of 2 or 3)
  • Subject has signed IRB-approved informed consent form

Exclusion criteria

  • Subject has clinically significant anatomic obstructions that limit access to the posterior nose including severe septal deviation, nasal polyps, and sinonasal tumor
  • Subject has a septal perforation
  • Subject has had prior sinus or nasal surgery that significantly alters the anatomy of the posterior nose
  • Subject has had prior head or neck irradiation
  • Subject has active or chronic nasal or sinus infection
  • Subject has active coagulation disorder or patient is receiving anti-coagulants which cannot be safely stopped for 2 weeks
  • Subject has a history of dry nose symptoms
  • Subject is pregnant or lactating
  • Subject is participating in another clinical research study
  • Subject has an allergy or intolerance to anesthetic agent
  • Subject is an active smoker or has been a smoker within the last 6 months
  • Any physical condition that in the investigator's opinion would prevent adequate study participation or pose increased risk

Treatment and study plan

ClariFix Device

Device

Primary outcomes

  1. Device- and/or Procedure-related Serious Adverse Events

    Time frame: Baseline through 365 days post treatment

    Number of participants with device- and/or procedure-related serious adverse events reported over the initial study follow-up period.

  2. Change in Rhinitis Symptom Severity (rTNSS)

    Time frame: Baseline through 365 days post treatment

    Change from baseline in participant-reported symptom severity based on the rTNSS (Reflective Total Nasal Symptom Score). The rTNSS is the sum of 4 individual subject-assessed symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, each evaluated using a scale of 0=None, 1=Mild, 2=Moderate, or 3=Severe. The rTNSS has a possible score range of 0-12. The reflective scores are based on the participant's evaluation of symptom severity over the preceding 12 hours.

  3. Change in Rhinitis Symptoms (VAS)

    Time frame: Baseline through 365 days post treatment

    Change from baseline in rhinitis symptoms measured on a participant-reported visual analog scale (VAS). Symptoms of rhinorrhea, nasal breathing, facial pain/pressure, and sense of smell were rated from 0 (no symptoms) to 10 (severe/extremely bothersome symptoms) assessed over the 12 hours preceding the visit. An average of the 4 individual scores was used as the total VAS score with a range of 0 to 10.

Secondary outcomes

  1. Ease of Use

    Time frame: Immediately post treatment

    Physician evaluation of ClariFix ease of use. After each participant's treatment, the physician was asked to rate the ClariFix on ease of use. Options were easy, moderately easy, moderately difficult, or difficult.

  2. Device- and/or Procedure-related Adverse Events

    Time frame: Baseline through 90 days post treatment

    All adverse events evaluated as possibly, probably, or definitely related to the ClariFix device and/or procedure.

Sponsors and collaborators

Lead sponsor

Arrinex, Inc.

Industry

Registry information

Official study title

Clinical Evaluation of Cryotherapy in the Nasal Passageway Using the ClariFix Device

Important dates

Study start
2015
Primary completion
2016
Study completion
2016
First posted
Jul 1, 2016
Registry last updated
Oct 21, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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