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NeuralgiaNCT05620225

Axon Therapy and Conventional Medical Management for Painful Diabetic Neuropathy Compared to Sham and Conventional Medical Management

A study testing Axon Therapy and CMM in people with Neuralgia and Neuropathic Pain, run by NeuraLace Medical, Inc. at 7 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Compare Axon Therapy plus conventional medical management (CMM) to Sham plus CMM in reducing neuropathic pain in patients with painful diabetic neuropathy (PDM). Read more about this study

Who is it for?
Ages 18 to 85 years
What is being tested?
Axon Therapy and CMM
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
93 participants
Where
7 sitesUnited States
Study dates
15 Dec 2022to 22 Nov 2023
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Evidence of a personally signed and dated informed consent indicating that the subject has been informed of all pertinent aspects of the study.
  • Subject is willing and able to comply with scheduled visits, treatment plan, daily pain, and other study procedures subject is able and willing to complete twice daily electronic diary for up to 60 days.
  • Subject must be literate in English to fill out the study questionnaires.
  • Men or women of any race or ethnicity who are 18-85 years of age.
  • Subjects must not have a Body Mass Index >40.
  • Subject must have painful diabetic neuropathy (Type 2) present in the lower limbs for more than three months per medical history
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  • Subject has a pain score ≥5 on VAS at Enrollment/Screening Visit.
  • Subject has completed at least one of the two daily pain diary entries on at least five days between the Enrollment/Screening Visit and Visit 1 with a mean pain score of ≥4 and <10 based on Daily VAS to be eligible for the study.
  • Subject is on a stable pain medication regimen or is not taking pain medications, as

Who cannot join

  • Subjects with neuropathic pain due to post-herpetic neuropathy, HIV, trigeminal neuralgia; subjects whose post- traumatic neuropathic pain is categorized as central (e.g., spinal cord injury) rather than peripheral.
  • Subjects with any other chronic or recurrent pain syndrome rated greater than "mild" on a mild-moderate-severe scale, or which the investigator judges may interfere with the patients ability to report their pain accurately.
  • Any disorder that may be confused with PDN, such as tarsal tunnel syndrome, sciatica, bunions, ischemic claudication or arthritis of the feet or ankles.
  • Subject has a currently diagnosed progressive neurological disease such as multiple sclerosis, chronic inflammatory demyelinating polyneuropathy, rapidly progressive arachnoiditis, brain or spinal cord tumor, or severe/critical spinal stenosis (stenosis).
  • Subjects with skin conditions in the affected dermatome that in the judgment of the investigator could interfere with evaluation of the neuropathic pain condition.
  • Subjects with other pain that may confound assessment or self-evaluation of the peripheral neuropathic pain; subjects with significant somatic pain at the site of their trauma that may confound assessment or self-evaluation of their neuropathic pain.
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  • Participation in any other clinical trial within the 30 days prior to screening and/or during participation in this study.
  • Any subject considered at risk of suicide or self-harm based on investigator judgment.
  • Other severe acute or chronic medical or psychiatric conditions, or laboratory abnormality, or other factors that may increase the risk associated with study participation or investigational product administration or may interfere with compliance or the interpretation of study results and, in the judgment of the investigator would make the subject inappropriate to participate in the study.
  • Subjects with pending Worker's Compensation, Worker's Compensation, civil litigation, or disability claims. Subjects with fully resolved litigation and compensation claims can participate.
  • Subjects who have had a diagnosis of malignancy other than basal cell carcinoma, or carcinoma in situ of the cervix within the past five years, to include life expectancy less than 1 year due to advanced malignancy.
  • Subjects with implantable "electrical" medical devices such as a cardiac pacemaker, defibrillator, or insulin pump within four (4) inches or less of the site of pain to be treated by Axon Therapy. (Subject with an implantable device greater than four (4) inches from the site of pain to be treated should NOT be excluded).
  • Phantom limb pain or pain that feels like it is coming from a body part that is no longer there.
  • Subjects who have failed other neuromodulation implantable device for the same indication
  • Subjects with shrapnel or ferromagnetic objects
  • Subject is currently taking a morphine equivalent daily dose > 120 mg/day.
  • Subject is a woman of childbearing potential, not using adequate contraception or not willing to comply with contraception for the duration of the study.
  • Subjects with active drug or alcohol abuse within 1 year prior to screening.
  • Subjects with hemoglobin A1C of 9% or higher for 90 days prior to screening.

Trial locations and contacts

7 sites in 1 country.

7 sites in 1 country

United States7 sites
  • Centurion Spine and Pain Centers

    Brunswick, Georgia, 31520

  • SC Pain and Spine Specialists, LLC

    Murrells Inlet, South Carolina, 29576

  • Florida Pain Management Associates, P.A.

    Sebastian, Florida, 32958

  • Truwell Health

    St. Petersburg, Florida, 33701

  • Florida Pain Management Associates, P.A.

    Vero Beach, Florida, 32960

  • Centurion Spine and Pain Centers

    Waycross, Georgia, 31501

  • Carolinas Pain Institute and Center for Clinical Research

    Winston-Salem, North Carolina, 27103

Other trials in United States

About this study

Official title: A Multicenter, Randomized, Clinical Trial Comparing the Safety and Effectiveness of Axon Therapy and Conventional Medical Management (AT+CMM) for the Treatment of Painful Diabetic Neuropathy to Sham and Conventional Medical Management (Sham+CMM)

Compare Axon Therapy plus conventional medical management (CMM) to Sham plus CMM in reducing neuropathic pain in patients with painful diabetic neuropathy (PDM).

Read the detailed description

This is a two-phase study.

Phase 1 is a double blinded, two-arm, randomized, multi-center clinical trial to assess 1-month efficacy as compared to a sham group. Up to approximately 80 subjects diagnosed with painful diabetic neuropathy will be randomized 3:1 into one of two treatment groups:

  1. Axon Therapy plus CMM (AT+CMM)
  2. Sham plus CMM (Sham+CMM)

Subjects will be consented, screened, and then undergo a 7-day baseline assessment period. Subjects will be asked to record pain, numbness, and sleep scores via a twice daily electronic diary. Subjects who meet inclusion criteria, including diary compliance, will undergo an in-clinic baseline evaluation (Day 1), be randomized, and start their treatments.

All subjects will return to the clinic for treatments as follows:

● Day 1 - 30: 6 treatments

  • Week 1: 3 treatments
  • Week 2-4: Weekly treatments

All subjects will return to the clinic for follow-up assessment at Day 30 (± 5 days). At the Day 30 visits subjects will be asked if they want to participate in Phase 2 of the study.

Phase 2 of the study is an unblinded, one-arm, multi-center trial to assess extended efficacy of the treatment. At Day 30, subjects will be unblinded and allowed to remain in the study for an additional 60 (AT+CMM) to 90 (ATx+CMM) days. Those in the Sham arm can choose to crossover to active treatment ( ATx+CMM).

Subjects in the AT+CMM arm will return to the clinic as follows:

  • Month 2: Bi-weekly treatment
  • Month 3: Treatments every 2-4 weeks
  • Additional treatments to treat flare ups; defined as an episode of pain with a VAS 6.

Subjects in the ATx+CMM arm will return to the clinic as follows:

  • Month 2: 6 treatments
  • Week 1: 3 treatments
  • Week 2-4: Weekly treatments
  • Month 3: Bi-weekly treatment
  • Month 4: Treatments every 2-4 weeks
  • Additional treatments to treat flare ups; defined as an episode of pain with a VAS 6.

Subjects who do not choose to remain in the study will be monitored for 30 days for AEs and then they will exit the study. The subject's reason for exiting the study will be recorded.

In addition to in-clinic assessments and treatments, all subjects will complete an electronic twice daily diary through Day 30 of the study (Day 60 for ATx+CMM subjects). Subjects will receive weekly phone follow-up for diary reminders and to assess for the occurrence of adverse events. Weekly phone follow-up will occur only during weeks when the subject is not seen in the clinic.

Being tested
Axon Therapy and CMM, Sham and CMM
Keywords
transcutaneous magnetic stimulation, axon therapy, peripheral neuropathic pain, diabetic neuropathy
Medical subject headings
Neuralgia, Diabetic Neuropathies

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Axon Therapy and CMMDevice

    transcutaneous magnetic stimulation (TMS)

  • Sham and CMMDevice

    Sham and CMM

Study groups in NCT05620225
Study groupRoleWhat they receive
Axon Therapy + CMMExperimentalSubjects will be consented, screened, and then undergo a 7-day baseline assessment period. Subjects will be asked to record pain, numbness, and sleep scores via a twice daily electronic diary. Subjects who meet inclusion criteria, including diary compliance, will undergo an in-clinic baseline evaluation (Day 1), be randomized, and start their treatments. All subjects will return to the clinic for treatments as follows: ● Day 1 - 30: 6 treatments * Week 1: 3 treatments * Week 2-4: Weekly treatments All subjects will return to the clinic for follow-up assessment at Day 30 (± 5 days). At the Day 30 visits subjects will be asked if they want to participate in Phase 2 of the study.
Receives: Device: Axon Therapy and CMM
Sham + CMMSham comparatorSubjects will be consented, screened, and then undergo a 7-day baseline assessment period. Subjects will be asked to record pain, numbness, and sleep scores via a twice daily electronic diary. Subjects who meet inclusion criteria, including diary compliance, will undergo an in-clinic baseline evaluation (Day 1), be randomized, and start their treatments. All subjects will return to the clinic for treatments as follows: ● Day 1 - 30: 6 treatments * Week 1: 3 treatments * Week 2-4: Weekly treatments All subjects will return to the clinic for follow-up assessment at Day 30 (± 5 days). At the Day 30 visits subjects will be asked if they want to participate in Phase 2 of the study.
Receives: Device: Sham and CMM

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Comparison of the Proportion of Responders

    The primary efficacy endpoint is a between groups comparison of pain change from baseline to 30 days.

    Measured: 30 days

  2. Comparison of therapy-related AEs between the 2 Study arms

    The primary safety endpoint for this study is a comparison of therapy-related AEs through Day 30 between the 2 arms of the Study.

    Measured: 30 days

Secondary outcomes (13)
  1. Visual Analog Scale (VAS) for Pain

    Scores from daily diaries will be compared to baseline overall and by group (Axon therapy (AT) plus CMM and AT crossover (ATx) plus CMM)

    Measured: 30- and 90-days post-treatment

  2. VAS for Numbness

    Scores from daily diaries will be compared to baseline overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  3. Brief Pain Inventory (BPI)

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  4. Daily Sleep Interference Scale (DSIS)

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  5. EQ-5D-3L

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  6. Patient Global Impression of Change (PGIC)

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM). In addition, the proportion of subjects with a minimal clinically important change from baseline will be compared between groups.

    Measured: 30- and 90-days post-treatment

  7. Depression Anxiety Stress Scales (DASS)

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  8. Pain Disability Index (PDI)

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM). In addition, the proportion of subjects with a minimal clinically important change from baseline will be compared between groups.

    Measured: 30- and 90-days post-treatment

  9. Norfolk Quality of Life-Diabetic Neuropathy (QOL-DN) Questionnaire

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  10. In-clinic VAS Pain Scores

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  11. Increase from baseline pain medication within four weeks of the Day 90 visit (based on prescribed doses)

    Changes from baseline scores overall and by group (AT + CMM and ATx + CMM)

    Measured: 30- and 90-days post-treatment

  12. Proportion of subjects who discontinue treatment

    Proportion of subjects who discontinue treatment will be compared between groups

    Measured: 30- and 90-days post-treatment

  13. Neurological Exam - percentage of treatment arm with a change in neurological status

    Percentage of treatment arm (including crossover subjects) with a change in neurological status as determined by neurological exam on Day 90 after start of active treatment.

    Measured: 90 days post-treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Nov 2022
  2. Study start15 Dec 2022
  3. Primary completion23 Aug 2023
  4. Study completion22 Nov 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Model description
Prospective, controlled, double blinded, randomized, multi-center clinical trial in which up to 80 subjects diagnosed with painful diabetic neuropathy will be randomized 3:1 into one of two treatment groups: 1. Axon Therapy plus CMM (AT+CMM) 2. Sham plus CMM (Sham+CMM)
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
93 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05620225
Sponsor's protocol ID
NLM-004
Status last verified
Aug 2023
First submitted
9 Nov 2022
Last updated
11 Jul 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Brown L, Gage E, Cordner H, Kapural L, Rosenberg J, Bedder M. Safety and Efficacy of Magnetic Peripheral Nerve Stimulation for Treating Painful Diabetic Neuropathy. Neuromodulation. 2025 Dec;28(8):1366-1373. doi: 10.1016/j.neurom.2025.03.074. Epub 2025 Apr 30.

    PubMed 40304652

Questions about this trial

What is this clinical trial studying?

A study testing Axon Therapy and CMM in people with Neuralgia and Neuropathic Pain, run by NeuraLace Medical, Inc. at 7 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Comparison of the Proportion of Responders (time frame: 30 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05620225, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Jul 2024.

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