Clinical Evaluation of Safety and Efficacy for the NEUROMARK System in Subjects With Chronic Rhinitis (PARAGON)

May 13, 2026 updated by: Neurent Medical

Clinical Evaluation of Safety and Efficacy for the NEUROMARK System in Subjects With Chronic Rhinitis (PARAGON) - A Prospective, Single-arm, Multicenter Clinical Study.

The PARAGON Study is a prospective, single-arm, multicenter safety and efficacy study of the Neurent Medical NEUROMARK System in subjects with chronic rhinitis.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
80

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Alabama
      • Birmingham, Alabama, United States, 35242
        • Alabama Nasal and Sinus Center (Alabama Allergy)
    • California
      • California City, California, United States, 95661
        • Sacramento ENT
      • Temecula, California, United States, 92592
        • United Medical Doctors
    • Colorado
      • Colorado Springs, Colorado, United States, 80923
        • Colorado ENT
    • Louisiana
      • Marrero, Louisiana, United States, 70072
        • New Orleans Sinus Center
    • Maryland
      • Baltimore, Maryland, United States, 21204
        • Centers for Advanced ENT Care (CAdENT)
    • Michigan
      • Royal Oak, Michigan, United States, 48073
        • Rontal Clinics
    • Pennsylvania
      • Bethlehem, Pennsylvania, United States, 18017
        • Specialty Physician Associates
    • Virginia
      • Richmond, Virginia, United States, 23235
        • Richmond ENT
    • Washington
      • Seattle, Washington, United States, 98374-1145
        • Ear Nose Throat & Allergy Associates

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Subjects MUST:

  1. Be ≥18 years of age.
  2. Have been experiencing rhinitis symptoms for a minimum of 6 months.
  3. Have moderate to severe symptoms of runny nose (individual rTNSS symptom rating of 2 or 3), mild to severe symptoms of nasal congestion (individual rTNSS symptom rating of 1,2, or 3), and a minimum total score of 5 (out of 12) at baseline.
  4. Have an allergy test (by skin prick or intradermal testing, or by a validated in vitroImmunoglobin E [IgE test]) on file within 5 years of the baseline visit or is willing to have one performed during the study prior to 6-month visit.
  5. Be an appropriate candidate for bilateral NEUROMARK® device treatment performed under local anesthesia.
  6. Test negative for active COVID-19 at the start of the study screening and continue to be free of COVID-19 symptoms until the time of enrollment/treatment.
  7. Be willing and able to comply with all study elements, as indicated by written informed consent.

Exclusion Criteria:

Subjects MUST NOT:

  1. Have clinically significant anatomic obstruction that in the investigator's opinion limit access to the posterior nose, including but not limited to severe septal deviation or perforation, nasal polyps, and/or sinonasal tumor.
  2. Have had previous sinus or nasal surgery within 6 months of study enrollment.
  3. Have previously undergone RF, cryotherapy, or other surgical interventions for rhinitis.
  4. Have an active nasal or sinus infection.
  5. Have nasal mucosal erosion/ulceration.
  6. Have rhinitis symptoms that are due to seasonal allergies only.
  7. Have plans to (or otherwise anticipates the need to) undergo an ENT procedure concurrently or within 6 months after the study procedure.
  8. Have started a new sinonasal medication regimen within 4 weeks prior to treatment that, according to the manufacturer's labelling, has not yet stabilized.
  9. Be on prescribed anticoagulants (eg, warfarin, Plavix) or ≥ 325 mg aspirin that cannot be held for an appropriate time before the procedure.
  10. Have a history of chronic epistaxis or experienced a significant epistaxis event (defined as epistaxis requiring medical intervention) in the past 3 months.
  11. Have numbness of the soft palate, excessive dry eye, excessive dry nose, or other indication of neuro/nerve compromise in the sinonasal cavity.
  12. Have an active rhinitis medicamentosa or a history of rhinitis medicamentosa within the past 6 months.
  13. Have been diagnosed with atrophic rhinitis.
  14. Have had previous head and/or neck irradiation.
  15. Have an allergy or intolerance to local anesthetic agents.
  16. Be pregnant.
  17. Have a physical, neurological, medical, psychiatric condition or situation that, in the investigator's opinion, puts the subject at risk, could confound the study results, or may interfere significantly with the subject's participation in the study.
  18. Be participating in another clinical research study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment
Subjects will undergo treatment with the NEUROMARK System
Device: NEUROMARK System
The NEUROMARK System is indicated for use in otorhinolaryngology (ENT) surgery for creation of radiofrequency (RF) lesions to disrupt posterior nasal nerves in patients with chronic rhinitis.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change from Baseline in Total Reflective Total Nasal Symptom Score (rTNSS) at 6 Months [Efficacy]
Time Frame: Baseline to 6 months
The reflective Total Nasal Symptom Score (rTNSS) is a patient-reported outcome assessing nasal congestion, rhinorrhea, sneezing, and nasal itching. Each symptom is scored from 0 (none) to 3 (severe), with a total score range of 0 to 12. A decrease in score indicates improvement in symptoms.
Baseline to 6 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of participants achieving ≥30% reduction from baseline in total rTNSS
Time Frame: 6 months
Responder rate defined as the proportion of participants achieving a ≥30% reduction from baseline in total rTNSS score.
6 months
Percentage of participants achieving minimal clinically important difference (MCID) in total rTNSS
Time Frame: 6 months
MCID is defined as a reduction of ≥1 point from baseline in total rTNSS score.
6 months
Change from baseline in total Nasal Obstruction Symptom Evaluation (NOSE) score
Time Frame: Baseline to 6 months
The NOSE score is a validated patient-reported outcome assessing nasal obstruction. Scores range from 0 to 100, with higher scores indicating worse symptoms. A decrease in total score indicates improvement.
Baseline to 6 months
Percentage of participants achieving response in total NOSE score
Time Frame: 6 months
Responder rate defined as ≥20% improvement from baseline in total NOSE score or improvement of at least one NOSE severity class.
6 months
Change from baseline in overall mini-Rhinoconjunctivitis Quality of Life Questionnaire (mini-RQLQ) score
Time Frame: Baseline to 6 months
The mini-RQLQ is a validated patient-reported outcome assessing quality of life across multiple domains including activities, practical problems, nasal symptoms, eye symptoms, and other symptoms. Scores range from 0 to 6, with higher scores indicating worse quality of life. A decrease in overall score indicates improvement.
Baseline to 6 months
Percentage of participants achieving minimal clinically important difference (MCID) in overall mini-RQLQ
Time Frame: 6 months
MCID is defined as a reduction of ≥0.4 points from baseline in the overall mini-RQLQ score.
6 months
Change from baseline in overall Eustachian Tube Dysfunction Questionnaire-7 (ETDQ-7) score
Time Frame: Baseline to 6 months
The ETDQ-7 is a patient-reported outcome assessing symptoms of Eustachian tube dysfunction. Scores range from 1 to 7, with higher scores indicating worse symptoms. A decrease in overall score indicates improvement.
Baseline to 6 months
Change from baseline in postnasal drip symptom score
Time Frame: Baseline to 6 months
Postnasal drip is assessed on a scale from 0 (none) to 3 (severe). A decrease from baseline indicates improvement in symptoms.
Baseline to 6 months
Change from baseline in cough symptom score
Time Frame: Baseline to 6 months
Cough is assessed on a scale from 0 (none) to 3 (severe). A decrease from baseline indicates improvement in symptoms.
Baseline to 6 months
Incidence of Device- and/or Procedure-Related Serious Adverse Events (SAEs)
Time Frame: 6 months
The number of participants experiencing serious adverse events that are assessed as related to the device or procedure.
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Neurent Medical

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Annalise Sorensen, Neurent Medical

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 26, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 5, 2025

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 5, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 18, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 20, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 24, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 15, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 13, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CIP-0007

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

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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