Efficacy and Safety of HA35 Gel Nighttime Occlusive Application for TMD Pain (HA35-TMJ)

May 7, 2026 updated by: Nakhia Impex LLC

A Prospective, Single-Arm, Open-Label Pilot Clinical Study to Evaluate Efficacy and Safety of Nighttime Occlusive 10% 35 kDa Hyaluronan (HA35) Gel for Temporomandibular Joint Disorder (TMD) Pain and Muscle Over-Tension

This is a prospective, single-arm, open-label, pilot clinical study to evaluate the efficacy and safety of nighttime occlusive application of 10% high-concentration 35 kDa hyaluronan (HA35) gel in subjects with temporomandibular joint disorder (TMD). Eligible participants will apply HA35 gel to the TMJ area nightly under occlusive conditions for 8-12 hours. The primary objectives are to assess rapid pain relief and muscle over-tension reduction at 60 seconds and 12 hours after application. Safety and local tolerability will be evaluated throughout the study period. This is a minimal-risk, non-pharmacological, non-invasive intervention.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

This prospective, single-center, single-arm, open-label pilot clinical study investigates the efficacy and safety of nighttime occlusive topical 10% high-concentration 35 kDa hyaluronan (HA35) gel for relieving pain and muscle over-tension associated with temporomandibular joint disorder (TMD).

Eligible subjects will apply ≥6.5 mL of HA35 gel to the TMJ region before sleep, covered with an occlusive film for 8-12 hours overnight. Pain intensity and muscle over-tension will be assessed using a 0-10 Numeric Rating Scale (NRS) at baseline, 60 seconds after application, and 12 hours after application.

Local skin reactions, adverse events, and overall tolerability will be monitored continuously.

This is a non-invasive, non-pharmacological intervention with minimal risk to participants. All procedures will be conducted in accordance with the Declaration of Helsinki, and written informed consent will be obtained from all subjects prior to enrollment.

Study Type

Interventional

Enrollment (Estimated)

30

Phase

  • Not Applicable

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

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 18-60 years, male or female
  • Clinically diagnosed with TMD with TMJ pain and/or muscle over-tension
  • Baseline TMJ pain NRS score ≥3
  • History of bruxism or jaw clenching
  • Ability to complete NRS assessments independently
  • Signed written informed consent

Exclusion Criteria:

  • TMJ treatment (medication, physical therapy, injection) within 2 weeks
  • Topical analgesic/anti-inflammatory use within 24 hours
  • Skin damage, allergy, or infection in the TMJ application area
  • Severe systemic disease (cardiovascular, diabetes, autoimmune)
  • Known hypersensitivity to hyaluronan or gel components
  • Pregnant or lactating women

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: Supportive Care
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: HA35 Gel Nighttime Occlusive Application Group
Participants receive 10% high-concentration 35 kDa HA35 gel applied to the TMJ area nightly under occlusive conditions for 8-12 hours. Efficacy on TMJ pain, muscle over-tension, and safety will be evaluated.
Device: 10% High-Concentration 35 kDa Hyaluronan (HA35) Topical Gel
Topical gel containing 10% high-concentration 35 kDa hyaluronan fragment. Applied to the TMJ area under nighttime occlusive conditions to rapidly relieve TMD-related pain and muscle over-tension.
Other Names:
  • HA35 TMJ Gel
  • Nighttime Occlusive HA35 Gel

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in TMJ Pain NRS Score (0-10)
Time Frame: Baseline to 60 seconds and 12 hours after application
Change in TMD-related TMJ pain intensity measured by 0-10 NRS, 0 = no pain, 10 = worst imaginable pain.
Baseline to 60 seconds and 12 hours after application

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Jaw Muscle Over-Tension Intensity (0-10 NRS Score)
Time Frame: Baseline to 60 seconds and 12 hours after application
Change in jaw muscle over-tension intensity, assessed using a 0-10 Numeric Rating Scale (NRS), where 0 = no muscle tension and 10 = maximum, painful muscle over-tension.
Baseline to 60 seconds and 12 hours after application
Incidence and Severity of Local Skin Adverse Events
Time Frame: From study enrollment (baseline) to the end of the 12-hour observation period
Number and severity of treatment-related local skin adverse events (e.g., redness, irritation, allergic reaction) reported during the study. Severity is graded using the Common Terminology Criteria for Adverse Events (CTCAE).
From study enrollment (baseline) to the end of the 12-hour observation period

Collaborators and Investigators

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

Sponsor

Nakhia Impex LLC

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 (Estimated)

May 20, 2026

Primary Completion (Estimated)

June 20, 2026

Study Completion (Estimated)

July 20, 2026

Study Registration Dates

First Submitted

April 28, 2026

First Submitted That Met QC Criteria

May 7, 2026

First Posted (Actual)

May 13, 2026

Study Record Updates

Last Update Posted (Actual)

May 13, 2026

Last Update Submitted That Met QC Criteria

May 7, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HA35202605

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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