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Enrolling by invitationNCT07706595Updated Jul 16, 2026

A Randomized Controlled Trial Comparing Posterior Nasal Nerve Ablation Procedures for Chronic Rhinitis

An interventional study of RhinAer and Neuromark in Chronic Rhinitis and Non-allergic Rhinitis, sponsored by University of California, San Diego. Enrolling by invitation at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-16.

Sponsored by University of California, San Diego · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 11 months after the study started (first participant enrolled Jul 2024, registered Jul 2026).
Phase
Not applicable
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

The goal of this clinical trial is to learn which procedural intervention most effectively reduces symptoms of chronic rhinitis (non-allergic rhinitis) in adult patients (18 years and older). The main questions it aims to answer are:

  • Which procedural intervention leads to the greatest reduction in total nasal symptom scores (TNSS)?
  • Which procedural intervention leads to the greatest improvement in sinonasal quality of life as measured by the SNOT-22?

Researchers will compare radiofrequency ablation (RhinAer or Neuromark) and cryotherapy (ClariFix) to see if there are differences in symptom reduction and durability of response across treatments. Participants will:

  • Be randomly assigned to one of three FDA-cleared posterior nasal nerve ablation procedures (RhinAer, Neuromark, or ClariFix)
  • Complete validated symptom questionnaires (TNSS and SNOT-22) before and after their procedure
  • Have their relevant medical records reviewed (demographics, clinical history, prior rhinitis treatments)
Read the detailed description

Chronic rhinitis (non-allergic/vasomotor rhinitis) affects an estimated 14 million Americans and is characterized by nasal inflammation in the absence of infectious or allergic triggers. When medical management fails, patients may pursue procedural intervention to ablate the posterior nasal nerves. Currently available FDA-cleared standard-of-care options include in-office radiofrequency ablation (RhinAer, Neuromark) and cryotherapy (ClariFix). Despite the availability of these modalities, comparative effectiveness data are lacking. This randomized controlled trial will enroll adult patients and randomly assign them to one of the three treatment arms to compare symptom reduction and durability of response across the three procedures.

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Conditions studied

  • Chronic Rhinitis
  • Non-allergic Rhinitis

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Keywords

  • Radiofrequency ablation
  • Cryotherapy
  • Chronic rhinitis
03

In context

Common Cold

219 studies on the registry are indexed under Common Cold; 23 are open to participants now.

This study's planned enrollment of 50 is below the median of 150 across 184 interventional studies indexed under Common Cold.

Browse Common Cold studies →

Lead sponsor

University of California, San Diego is the lead sponsor of 980 studies on the registry; 195 are open to participants now.

Of its 113 completed or terminated interventional studies of FDA-regulated products, 71 (63%) have results posted.

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

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

  • Age 18 years or older
  • Diagnosis of chronic rhinitis (non-allergic rhinitis)

Exclusion criteria

Exclusion Criteria:

- Under 18 years of age

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
50 participants (estimated)

Study arms

  • Active comparator
    RhinAer

    RhinAer is a radiofrequency ablation procedure for chronic rhinitis. This in-office procedure applies temperature-controlled radiofrequency energy to ablate the overactive posterior nasal nerve.

    Device: RhinAer

  • Active comparator
    Neuromark

    Neuromark is a radiofrequency ablation procedure for chronic rhinitis. This in-office procedure applies temperature-controlled radiofrequency energy to ablate the overactive posterior nasal nerve.

    Device: Neuromark

  • Active comparator
    ClariFix

    ClariFix is a cryoablation procedure for chronic rhinitis. This in-office procedure applies freezing (cryotherapy) to ablate the overactive posterior nasal nerve.

    Device: Clarifix

Interventions

  • DeviceRhinAer

    RhinAer is an in-office radiofrequency ablation device that delivers targeted thermal energy to the posterior nasal nerve along the lateral nasal wall. The procedure is performed under local anesthesia without the need for general anesthesia or sedation, and aims to reduce parasympathetic nerve signaling to decrease rhinorrhea, postnasal drip, and nasal congestion in patients with chronic rhinitis.

  • DeviceNeuromark

    Neuromark is an in-office radiofrequency ablation device that delivers targeted thermal energy to the posterior nasal nerve along the lateral nasal wall. The procedure is performed under local anesthesia without the need for general anesthesia or sedation, and aims to reduce parasympathetic nerve signaling to decrease rhinorrhea, postnasal drip, and nasal congestion in patients with chronic rhinitis.

  • DeviceClarifix

    ClariFix is an in-office cryoablation device that applies freezing (cold thermal) energy to the posterior nasal nerve in the posterior nasal cavity. The procedure is performed under local anesthesia without the need for general anesthesia or sedation, and aims to reduce parasympathetic nerve signaling to decrease rhinorrhea, postnasal drip, and nasal congestion in patients with chronic rhinitis.

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What researchers measure

Primary outcomes

  1. Sino-Nasal Outcome Test-22 (SNOT-22)

    SNOT-22 is a validated 22-item patient-reported outcome measure assessing sinonasal-specific quality of life across domains including nasal symptoms (nasal blockage, rhinorrhea, loss of smell/taste), ear and facial symptoms (ear pain, facial pressure), sleep dysfunction (difficulty falling asleep, waking up tired), and psychological and functional impairment (reduced productivity, fatigue, sadness).

    Time frame: SNOT-22 will be administered at baseline and at 1, 3, and 6 months post-procedure.

  2. Total Nasal Symptom Score (TNSS)

    TNSS is a validated 4-item patient-reported scoring instrument measuring severity of rhinorrhea, nasal congestion, nasal itching, and sneezing.

    Time frame: TNSS will be administered at baseline and at 1, 3, and 6 months post-procedure.

Secondary outcomes

  1. Visual Analog Scale (VAS) Patient Satisfaction

    A 0-10 visual analog scale on which patients rate their overall satisfaction with the procedure and its effect on their chronic rhinitis symptoms, with higher scores indicating greater satisfaction.

    Time frame: VAS patient satisfaction will be administered at 1, 3, and 6 months post-procedure.

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Study locations

2 sites
  • Perlman Medical Office at UC San Diego
    La Jolla, California 92037, United States
  • Veterans Affairs San Diego Healthcare System
    San Diego, California 92161, United States
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References and documents

Individual participant data

Plan to share: No — Individual participant data will not be shared outside the study team as this is an unfunded single-institution trial with no plans for external data sharing.

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 16, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07706595
Responsible party
Carol Yan (Associate Professor Of Clinical, Otolaryngology, University of California, San Diego) — Principal investigator
First posted
Jul 16, 2026
Start date
Jul 18, 2024
Primary completion
Aug 1, 2027 (estimated)
Completion
Aug 31, 2027 (estimated)
Last update
Jul 16, 2026

Oversight

FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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