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Multi-Treatment PNN Modulation for Chronic Rhinitis

Feasibility Study of Multi-Treatment Posterior Nasal Nerve (PNN) Modulation for Treatment of Chronic Rhinitis

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03791489
Enrollment
30
Registered
2019-01-02
Start date
2018-12-01
Completion date
2019-07-18
Last updated
2020-07-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Rhinitis

Brief summary

Feasibility of treatment at multiple sites with the ClariFix cryoablation device for treatment of chronic rhinitis

Interventions

DEVICEClariFix

The ClariFix™ device (K162608) is an FDA 510(k) cleared Class II cryosurgical tool indicated for the destruction of unwanted tissue during surgical procedures, including in adults with chronic rhinitis.

Sponsors

Arrinex, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Prospective, non-randomized, feasibility study of multi-treatment locations

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Presence of moderate to severe rhinorrhea symptoms and mild to severe nasal congestion symptoms for \>3 months. * 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. * Able to provide informed consent and willing to complete study activities and visits per protocol.

Exclusion criteria

* Clinically significant anatomic obstructions that limit access to the posterior nose. * Prior sinus or nasal surgery that significantly alters the anatomy of the posterior nose. * Moderate to severe ocular symptoms as determined. * History of epistaxis in the past 3 months. * History of rhinitis medicamentosa. * Prior head or neck irradiation. * Active or chronic nasal or sinus infection. * Pregnant. * Allergy or intolerance to anesthetic agent. * Cryoglobulinemia, paroxysmal cold hemoglobinuria, cold urticaria, Raynaud's disease, and/or, open and/or infected wounds at or near the target tissue. * Currently participating in another clinical research study. * Any physical condition that, in the investigator's opinion, would prevent adequate study participation or pose increased risk.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Procedure-related Serious Adverse Events (SAEs) and/or Serious Adverse Device Effects (SADE)Study duration (90-days)The outcome measure is the number of participants experiencing 1 or more SAEs/SADEs.

Secondary

MeasureTime frameDescription
Pain ScoresDay of treatment during procedure and for up to 1 hour post procedureTolerability of treatment as provided by the participant by verbal report of pain/discomfort during treatment and post treatment using an 11-point scale indicating pain intensity from 0 (no pain) to 10 (worst pain).
Change From Baseline in the Reflective Total Nasal Symptom Score (rTNSS)30 and 90 days after treatmentThe rTNSS is a validated patient-reported outcome measure consisting of 4 symptoms: rhinorrhea, nasal congestion, nasal itching, and sneezing. Each item is scored on a scale of 0 (no symptoms) to 3 (severe symptoms). The total rTNSS is the sum of the 4 symptom scores and has a possible range of 0 to 12 points. The change from baseline is calculated as the follow-up value minus the baseline value. Negative values indicate improved symptoms.
Change From Baseline in the Overall Nasal Obstruction Symptom Evaluation (NOSE) Score30 and 90 days after treatmentThe NOSE survey is a patient-reported outcome measure consisting of 5 nasal symptoms: nasal congestion or stuffiness, nasal blockage or obstruction, trouble breathing through the nose, trouble sleeping, and unable to get enough air through the nose during exercise or exertion. Each symptom is scored using a 5-point scale of 0 (not a problem) to 4 (severe problem). The 5 symptom scores are summed and the total is multiplied by 5 to give a total score that ranges from 0 to 100, with higher scores indicating worse symptoms. The change from baseline is calculated as the follow-up value minus the baseline value. Negative values indicate improved symptoms.

Countries

United States

Participant flow

Participants by arm

ArmCount
Active Treatment
ClariFix: The ClariFix™ device (K162608) is an FDA 510(k) cleared Class II cryosurgical tool indicated for the destruction of unwanted tissue during surgical procedures, including in adults with chronic rhinitis.
30
Total30

Baseline characteristics

CharacteristicActive Treatment
Age, Continuous60.0 years
STANDARD_DEVIATION 15.8
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
28 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Number with allergic rhinitis11 Participants
Number with nonallergic rhinitis17 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
27 Participants
Region of Enrollment
United States
30 participants
Sex: Female, Male
Female
16 Participants
Sex: Female, Male
Male
14 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 30
other
Total, other adverse events
22 / 30
serious
Total, serious adverse events
0 / 30

Outcome results

Primary

Number of Participants With Procedure-related Serious Adverse Events (SAEs) and/or Serious Adverse Device Effects (SADE)

The outcome measure is the number of participants experiencing 1 or more SAEs/SADEs.

Time frame: Study duration (90-days)

Population: All enrolled participants

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Active TreatmentNumber of Participants With Procedure-related Serious Adverse Events (SAEs) and/or Serious Adverse Device Effects (SADE)0 Participants
Secondary

Change From Baseline in the Overall Nasal Obstruction Symptom Evaluation (NOSE) Score

The NOSE survey is a patient-reported outcome measure consisting of 5 nasal symptoms: nasal congestion or stuffiness, nasal blockage or obstruction, trouble breathing through the nose, trouble sleeping, and unable to get enough air through the nose during exercise or exertion. Each symptom is scored using a 5-point scale of 0 (not a problem) to 4 (severe problem). The 5 symptom scores are summed and the total is multiplied by 5 to give a total score that ranges from 0 to 100, with higher scores indicating worse symptoms. The change from baseline is calculated as the follow-up value minus the baseline value. Negative values indicate improved symptoms.

Time frame: 30 and 90 days after treatment

Population: All enrolled participants with the applicable follow-up visit.

ArmMeasureGroupValue (MEAN)Dispersion
Active TreatmentChange From Baseline in the Overall Nasal Obstruction Symptom Evaluation (NOSE) Score30-day follow-up-19.0 score on a scaleStandard Deviation 28.3
Active TreatmentChange From Baseline in the Overall Nasal Obstruction Symptom Evaluation (NOSE) Score90-day follow-up-31.4 score on a scaleStandard Deviation 34.4
p-value: <0.03t-test, 2 sided
Secondary

Change From Baseline in the Reflective Total Nasal Symptom Score (rTNSS)

The rTNSS is a validated patient-reported outcome measure consisting of 4 symptoms: rhinorrhea, nasal congestion, nasal itching, and sneezing. Each item is scored on a scale of 0 (no symptoms) to 3 (severe symptoms). The total rTNSS is the sum of the 4 symptom scores and has a possible range of 0 to 12 points. The change from baseline is calculated as the follow-up value minus the baseline value. Negative values indicate improved symptoms.

Time frame: 30 and 90 days after treatment

Population: All enrolled participants with the applicable follow-up visit.

ArmMeasureGroupValue (MEDIAN)
Active TreatmentChange From Baseline in the Reflective Total Nasal Symptom Score (rTNSS)30-day follow-up-3.5 score on a scale
Active TreatmentChange From Baseline in the Reflective Total Nasal Symptom Score (rTNSS)90-day follow-up-4.0 score on a scale
p-value: <0.0001Wilcoxon (Mann-Whitney)
Secondary

Pain Scores

Tolerability of treatment as provided by the participant by verbal report of pain/discomfort during treatment and post treatment using an 11-point scale indicating pain intensity from 0 (no pain) to 10 (worst pain).

Time frame: Day of treatment during procedure and for up to 1 hour post procedure

Population: All enrolled participants

ArmMeasureGroupValue (MEAN)Dispersion
Active TreatmentPain ScoresPost treatment4.1 score on a scaleStandard Deviation 3.87
Active TreatmentPain ScoresDuring treatment1.0 score on a scaleStandard Deviation 1.95

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026