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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT05620225
Other study ID # NLM-004
Secondary ID
Status Active, not recruiting
Phase N/A
First received
Last updated
Start date December 15, 2022
Est. completion date November 2023

Study information

Verified date August 2023
Source NeuraLace Medical, Inc.
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical 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).


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.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 93
Est. completion date November 2023
Est. primary completion date August 23, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years to 85 Years
Eligibility Inclusion Criteria: 1. Evidence of a personally signed and dated informed consent indicating that the subject has been informed of all pertinent aspects of the study. 2. 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. 3. Subject must be literate in English to fill out the study questionnaires. 4. Men or women of any race or ethnicity who are 18-85 years of age. 5. Subjects must not have a Body Mass Index >40. 6. Subject must have painful diabetic neuropathy (Type 2) present in the lower limbs for more than three months per medical history 7. Subject has a pain score =5 on VAS at Enrollment/Screening Visit. 8. 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. 9. Subject is on a stable pain medication regimen or is not taking pain medications, as Exclusion Criteria: 1. 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. 2. 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. 3. Any disorder that may be confused with PDN, such as tarsal tunnel syndrome, sciatica, bunions, ischemic claudication or arthritis of the feet or ankles. 4. 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). 5. Subjects with skin conditions in the affected dermatome that in the judgment of the investigator could interfere with evaluation of the neuropathic pain condition. 6. 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. 7. Participation in any other clinical trial within the 30 days prior to screening and/or during participation in this study. 8. Any subject considered at risk of suicide or self-harm based on investigator judgment. 9. 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. 10. Subjects with pending Worker's Compensation, Worker's Compensation, civil litigation, or disability claims. Subjects with fully resolved litigation and compensation claims can participate. 11. 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. 12. 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). 13. Phantom limb pain or pain that feels like it is coming from a body part that is no longer there. 14. Subjects who have failed other neuromodulation implantable device for the same indication 15. Subjects with shrapnel or ferromagnetic objects 16. Subject is currently taking a morphine equivalent daily dose > 120 mg/day. 17. Subject is a woman of childbearing potential, not using adequate contraception or not willing to comply with contraception for the duration of the study. 18. Subjects with active drug or alcohol abuse within 1 year prior to screening. 19. Subjects with hemoglobin A1C of 9% or higher for 90 days prior to screening.

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Axon Therapy and CMM
transcutaneous magnetic stimulation (TMS)
Sham and CMM
Sham and CMM

Locations

Country Name City State
United States Centurion Spine and Pain Centers Brunswick Georgia
United States SC Pain and Spine Specialists, LLC Murrells Inlet South Carolina
United States Truwell Health Saint Petersburg Florida
United States Florida Pain Management Associates, P.A. Sebastian Florida
United States Florida Pain Management Associates, P.A. Vero Beach Florida
United States Centurion Spine and Pain Centers Waycross Georgia
United States Carolinas Pain Institute and Center for Clinical Research Winston-Salem North Carolina

Sponsors (1)

Lead Sponsor Collaborator
NeuraLace Medical, Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Comparison of the Proportion of Responders The primary efficacy endpoint is a between groups comparison of pain change from baseline to 30 days. 30 days
Primary 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. 30 days
Secondary 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) 30- and 90-days post-treatment
Secondary VAS for Numbness Scores from daily diaries will be compared to baseline overall and by group (AT + CMM and ATx + CMM) 30- and 90-days post-treatment
Secondary Brief Pain Inventory (BPI) Changes from baseline scores overall and by group (AT + CMM and ATx + CMM) 30- and 90-days post-treatment
Secondary Daily Sleep Interference Scale (DSIS) Changes from baseline scores overall and by group (AT + CMM and ATx + CMM) 30- and 90-days post-treatment
Secondary EQ-5D-3L Changes from baseline scores overall and by group (AT + CMM and ATx + CMM) 30- and 90-days post-treatment
Secondary 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. 30- and 90-days post-treatment
Secondary Depression Anxiety Stress Scales (DASS) Changes from baseline scores overall and by group (AT + CMM and ATx + CMM) 30- and 90-days post-treatment
Secondary 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. 30- and 90-days post-treatment
Secondary Norfolk Quality of Life-Diabetic Neuropathy (QOL-DN) Questionnaire Changes from baseline scores overall and by group (AT + CMM and ATx + CMM) 30- and 90-days post-treatment
Secondary In-clinic VAS Pain Scores Changes from baseline scores overall and by group (AT + CMM and ATx + CMM) 30- and 90-days post-treatment
Secondary 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) 30- and 90-days post-treatment
Secondary Proportion of subjects who discontinue treatment Proportion of subjects who discontinue treatment will be compared between groups 30- and 90-days post-treatment
Secondary 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. 90 days post-treatment
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