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Study of PEMF to Evaluate VPT and Thermal Sensory in Subjects With Diabetic Peripheral Neuropathy

A Multi-Center, Sham-Controlled, Double-Blind Randomized Withdrawal Study of PEMF Therapy to Evaluate Vibration Perception Threshold and Thermal Sensory in Subjects With Diabetic Peripheral Neuropathy in the Lower Extremity

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03077893
Enrollment
44
Registered
2017-03-13
Start date
2017-03-09
Completion date
2017-12-26
Last updated
2019-07-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Peripheral Neuropathy

Brief summary

A study to demonstrate the effectiveness of PEMF treatment compared to sham treatment in changing Vibration Perception Threshold (VPT) and Thermal Sensory (QST) in patients with diabetic peripheral neuropathy (DPN) when treatment is administered twice daily through 120-day period.

Detailed description

Multi-center, sham-controlled, double-blind, enriched enrollment, randomized withdrawal clinical trial conducted on subjects with bilateral symmetrical diabetic peripheral neuropathy. Eligible subjects will include those between 22 and 80 years of age with Type 1 or Type 2 diabetes having persistent pain, numbness, tingling, or burning in both feet despite treatment. Eligible subjects will receive two active treatment devices (one for each foot, to allow simultaneous treatment) and treat at home, twice daily for 60 days after which they will return to the clinic at Day 61 for a response assessment. Subjects that are determined to be responders at Day 61 (subjects that achieve a 1-point decrease in the average pain score over the last 24 hours using the Numeric Pain Rating Scale (NPRS)) will be randomized 1:1 to either active treatment or inactive sham devices and will continue treating through Day 120. Subjects that are determined to be non-responders at Day 61 will continue treating with the active devices given at enrollment and will return to the clinic at Day 75 and Day 91 for a response assessment. If a subject is determined to be a responder at Day 75, they will be randomized 1:1 to receive either active treatment or inactive sham and will continue treating through Day 120. If a subject is determined to be a responder at Day 91, they will be randomized 1:1 to receive either active treatment or sham and will continue to treat through Day 120. If a subject continues to be a non-responder at Day 91 they will be terminated from the study.

Interventions

Treatment with active Provant Therapy System

Treatment with Inactive (sham) Provant Therapy System

Sponsors

Regenesis Biomedical, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

Sham devices will look identical to active devices. This is a double-blind study.

Intervention model description

Subjects deemed responders after active treatment will be randomized in a 1:1 ratio to either active treatment or a sham device.

Eligibility

Sex/Gender
ALL
Age
22 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1. Subject age is greater than or equal to 22 years and less than 80 years of age. 2. Subject has documented Type 1 or Type 2 diabetes mellitus (receiving insulin, diet controlled, or taking parenteral hypoglycemic agents) 3. Subject is on a stable antidiabetic regimen (medication and/or diet) to control their diabetes for at least 30 days prior to Screening. 4. Subject has an HbA1c \<10% at Screening or within 2 months of Screening. 5. Subject has daily pain attributed to bilateral symmetrical Diabetic Peripheral Neuropathy with numbness, tingling, and/or burning based on clinical judgement for at least 6 months prior to screening. 6. Subject's pain or discomfort from DPN is identifiable. 7. Subject is in pain Phase 2, 3, or 4 as per the Phasing of Neuropathy Scale. 8. Subjects average pain over the last 24 hours is ≥3 based on the 11-point Numeric Pain Rating Scale (NPRS) at the Screening Visit. 9. Subject has adequate lower extremity pulse in both feet and no intermittent claudication. 10. Subject is able to ambulate independently without assistive devices. 11. Subject is willing and able to give written informed consent and to comply with all parts of the study protocol. 12. Female subjects must be post-menopausal, surgically sterile, abstinent, or practicing (or agrees to practice) an effective method of birth control if they are sexually active for the duration of the study (Effective methods of birth control include prescription hormonal contraceptives, intrauterine devices, double-barrier methods, and/or male partner sterilization).

Exclusion criteria

1. Subject is in pain Phase 1 or 5 as per the Phasing of Neuropathy Scale. 2. Subject has an active, open ulcer on the lower extremities. 3. Subject has peripheral vascular disease defined as absence of more than one foot pulse per foot and/or ABI \<0.8 and \>1.4 and/or history of angioplasty or peripheral bypass surgery within 6 months of the Screening Visit. 4. Subject has venous insufficiency as classified by the Venous Insufficiency Classification System of grade C6. 5. Subject has undergone nerve decompression surgery on the lower extremities. 6. Subject has a history of previous kidney, pancreas, cardiac transplantation, or severe renal disease. 7. Subject has been diagnosed with non-diabetic chronic inflammatory neuropathic disease (e.g. end stage renal disease, hepatitis C, chemotherapy induced neuropathy, known connective tissue disease, systemic lupus). 8. Subject has peripheral vascular disease requiring revascularization of lower limb or amputation or evidence of ulcer amputation. 9. Subject has clinically significant cardiovascular disease within 6 months prior to screening (unstable or poorly controlled hypertension, transient ischemic attack, MI, unstable angina, arrhythmia, any heart surgery, stent placement, heart disease). 10. Subject has a history of any uncontrolled medical illness that in the Investigators judgment places the subject at unacceptable risk for receipt of PEMF therapy. 11. Subject requires or anticipates the need for surgery of any type or travel during the treatment period. 12. Subject has a total foot depth (most inferior aspect of the medial malleolus to the plantar aspect of the foot when residing on a treatment pad) of \>8 cm. 13. Subject has received any investigational drug or device within 30 days prior to the Screening Visit or within 6 weeks prior to the Screening Visit for long acting lidocaine injection products. 14. Subject has used systemic corticosteroids within 3 months of the Screening Visit. 15. Subject has a history of malignancy within the past 5 years other than successfully treated non-metastatic basal cell or squamous cell carcinomas of the skin in the treatment area and/or localized in situ carcinoma of the cervix. 16. Subject has a serious psychosocial co-morbidity. 17. Subject has a history of drug or alcohol abuse, as confirmed by urine drug screen, within one year prior to the Screening Visit. 18. Subject has an implanted pacemaker, defibrillator, neurostimulator, spinal cord stimulator, bone stimulator, cochlear implant, or other implanted device with an implanted metal lead(s). 19. Subject is currently pregnant or planning on becoming pregnant prior to Day 121. 20. Subject has previously treated with PROVANT® Therapy System within 60 days on the lower extremity. 21. Subject is unwilling or unable to follow study instructions or comply with the treatment regimen, diary documentation, and study visits. 22. Subject has pain from any other source that can confuse the assessment of the pain associated with DPN. 23. Subject has a clinically significant foot deformity (Charcot's syndrome or club foot). 24. Subject has received nerve blocks for neuropathic pain within 4 weeks of the Screening Visit. 25. Subject has been diagnosed with mononeuropathy. 26. Subject has a skin condition that could alter their sensation. 27. Subject has had a previous surgery to the spine or lower extremity with residual symptoms of pain or difficulty with movement. 28. Subject has moderate or severe arthropathy (RA, OA, Gout) that causes discomfort during casual walking or stair climbing.

Design outcomes

Primary

MeasureTime frameDescription
Vibration Perception Threshold (VPT)Baseline to End of Treatment (Day 121)A non-invasive test used in quantifying sensation/sensitivity to vibration in evaluating sensory dysfunction associated with diabetic neuropathy
Quantitative Sensory Testing (QST)Baseline to End of Treatment (Day 121)QST is a noninvasive test used in peripheral nervous system disorders for thermal sensory testing.

Secondary

MeasureTime frameDescription
Pain Intensity (PI)Collected as patient-reported outcomes on a paper diary and at the Enrollment visit to obtain a baseline value and on Days 61, 75, and 91Mean change from Baseline to Day 121, using a validated 11-point Numeric Pain Rating Scale (NPRS) with scores 0-10, where 0 = no pain and 10 = worst possible pain.
Brief Pain Inventory (BPI); Question on Pain Right Now.Change in BPI, pain right now question, from Baseline to Day 121.The BPI long form will be administered at the Enrollment Visit, Day 30, 61, 91, and end of study visit (Day 121). Results for question #15 on Pain Right Now displayed below. Subject were asked to rate pain right now on a scale from 0 (no pain) to 10 (pain as bad as you can imagine).
Brief Fatigue Inventory (BFI)Change from Baseline to Day 121 in BFI.A 4-question assessment that assesses the level of fatigue and the impact of the fatigue on daily function over the last 24 hours. BFI is patient reported and collected at the Enrollment Visit, Days 30, 61, 91, and end of study visit (Day 121). A global fatigue score was calculated by averaging all of the values on the questionnaire and results for the change from Baseline to Day 121 are displayed below. The scale ranged from 0 (no fatigue/does not interfere) to 10 (as bad as you can imagine/completely interferes).
Nerve Conduction Velocity (NCV) - VelocityThe sural nerve conduction velocity will be recorded at the Enrollment Visit and end of study visit (Day 121).NC-stat® DPNCheck® will be used to record NCV at Baseline and Day 121. Outcome Measure Data table displays change in NCV from Baseline to Day 121.
Hospital Anxiety and Depression Scale (HADS)Change in Depression and Anxiety from Baseline to Day 121.A patient reported 14 question assessment that detects the status of depression and anxiety. Subjects completed the assessment at the Enrollment Visit, Days 30, 61, 91, and end of study visit (Day 121). The total score for anxiety and the total score for depression was calculated at Day 121. Low scores represent normal (0-7) while high scores represent abnormal (11-21).
Neuro-QoLChange in each domain from Baseline to Day 121 is displayed below.A validated set of health-related quality of life measures that are domain specific.Subjects will completed 6 domains: (1) Pain, (2) Lost/Reduced Feeling, (3) Diffuse Sensory Motor Symptoms, (4) Restrictions in Activities of Daily Living, (5) Disruptions in Social Relationships, and (6) Emotional Distress.The short forms were completed by the subject at the Enrollment Visit and end of study visit (Day 121). Each question in the domain was rated on a symptom scale from 1 (never) to 5 (all the time) and a bothersome scale from 1 (none) to 3 (very much). The total score for the domain was calculated by multiplying the symptom score by the bothersome score. The scale range is from 1 to 15 where the minimum (best/least symptomatic) score is 1 and the maximum (worst/most symptomatic) score is 15.
Nerve Conduction Velocity (NCV) - AmplitudeThe sural nerve conduction amplitude will be recorded at the Enrollment Visit and end of study visit (Day 121).NC-stat® DPNCheck® will be used to record NCV at Baseline and Day 121. Outcome Measure Data table displays change in NCV from Baseline to Day 121.
Patient Global Impression of Change (PGIC)PGIC results at Day 121 displayed below.A 7-choice validated categorical scale of overall change in status since initiation of treatment with the study device.PGIC was collected every 7 days in the paper diary, immediately following the morning treatment. Subjects were asked: Since the start of the study, my overall status is? Choices on the scale included: Very much worse, much worse, minimally worse, no change, minimally improved, much improved and very much improved.
Skin Perfusion Pressures (SPP)SPP will be conducted at the Enrollment Visit, Day 61, and end of study visit (Day 121).The Vasamed Sensilase PAD-IQ will be used to record SPP. This machine measures pressure (in mm Hg) of microcirculation using a laser Doppler sensor. Outcome Measure Data Table below displays change from Baseline to Day 121.

Countries

United States

Participant flow

Pre-assignment details

A total of 44 subjects were enrolled into the trial and given active Provant Therapy. A total of 7 subjects dropped out of the study prior to being randomized 1:1 active to sham. Since these subjects withdrew from the study prior to assignment to an arm, they are not included in the randomized total of 37 (18 active and 19 sham).

Participants by arm

ArmCount
Active Group
Treatment with active Provant Therapy System Active Provant Therapy System: Treatment with active Provant Therapy System
18
Sham Group
Treatment with Inactive (sham) Provant Therapy System Inactive (sham) Provant Therapy System: Treatment with Inactive (sham) Provant Therapy System
19
Total37

Baseline characteristics

CharacteristicActive GroupTotalSham Group
Age, Continuous62.5 years62.27 years62.05 years
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants17 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
9 Participants20 Participants11 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
2 Participants5 Participants3 Participants
Race (NIH/OMB)
More than one race
1 Participants1 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
15 Participants31 Participants16 Participants
Region of Enrollment
United States
18 participants37 participants19 participants
Sex: Female, Male
Female
6 Participants15 Participants9 Participants
Sex: Female, Male
Male
12 Participants22 Participants10 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
8 / 443 / 442 / 44
other
Total, other adverse events
2 / 440 / 440 / 44
serious
Total, serious adverse events
2 / 440 / 440 / 44

Outcome results

Primary

Quantitative Sensory Testing (QST)

QST is a noninvasive test used in peripheral nervous system disorders for thermal sensory testing.

Time frame: Baseline to End of Treatment (Day 121)

Population: Number analyzed in outcome measure table is less than overall number analyzed due to drop-outs and technical issues with the QST machine.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Active GroupQuantitative Sensory Testing (QST)Baseline QST, Abnormal Result9 Participants
Active GroupQuantitative Sensory Testing (QST)Baseline QST, Normal Result6 Participants
Active GroupQuantitative Sensory Testing (QST)Day 121 QST, Abnormal Result4 Participants
Active GroupQuantitative Sensory Testing (QST)DAy 121 QST, Normal7 Participants
Sham GroupQuantitative Sensory Testing (QST)DAy 121 QST, Normal8 Participants
Sham GroupQuantitative Sensory Testing (QST)Baseline QST, Abnormal Result8 Participants
Sham GroupQuantitative Sensory Testing (QST)Day 121 QST, Abnormal Result4 Participants
Sham GroupQuantitative Sensory Testing (QST)Baseline QST, Normal Result6 Participants
Primary

Vibration Perception Threshold (VPT)

A non-invasive test used in quantifying sensation/sensitivity to vibration in evaluating sensory dysfunction associated with diabetic neuropathy

Time frame: Baseline to End of Treatment (Day 121)

ArmMeasureGroupValue (MEAN)Dispersion
Active GroupVibration Perception Threshold (VPT)Big Toe, change in VPT9.26 amplitude in micronsStandard Deviation 32.67
Active GroupVibration Perception Threshold (VPT)Plantar Aspect, change in VPT9.18 amplitude in micronsStandard Deviation 32.1
Sham GroupVibration Perception Threshold (VPT)Big Toe, change in VPT-3.59 amplitude in micronsStandard Deviation 21.08
Sham GroupVibration Perception Threshold (VPT)Plantar Aspect, change in VPT1.184 amplitude in micronsStandard Deviation 19.66
Secondary

Brief Fatigue Inventory (BFI)

A 4-question assessment that assesses the level of fatigue and the impact of the fatigue on daily function over the last 24 hours. BFI is patient reported and collected at the Enrollment Visit, Days 30, 61, 91, and end of study visit (Day 121). A global fatigue score was calculated by averaging all of the values on the questionnaire and results for the change from Baseline to Day 121 are displayed below. The scale ranged from 0 (no fatigue/does not interfere) to 10 (as bad as you can imagine/completely interferes).

Time frame: Change from Baseline to Day 121 in BFI.

ArmMeasureValue (MEAN)Dispersion
Active GroupBrief Fatigue Inventory (BFI)-1.65 units on a scaleStandard Deviation 3.13
Sham GroupBrief Fatigue Inventory (BFI)-2.3 units on a scaleStandard Deviation 1.98
Secondary

Brief Pain Inventory (BPI); Question on Pain Right Now.

The BPI long form will be administered at the Enrollment Visit, Day 30, 61, 91, and end of study visit (Day 121). Results for question #15 on Pain Right Now displayed below. Subject were asked to rate pain right now on a scale from 0 (no pain) to 10 (pain as bad as you can imagine).

Time frame: Change in BPI, pain right now question, from Baseline to Day 121.

ArmMeasureValue (MEAN)Dispersion
Active GroupBrief Pain Inventory (BPI); Question on Pain Right Now.-1.65 units on a scaleStandard Deviation 3.02
Sham GroupBrief Pain Inventory (BPI); Question on Pain Right Now.-1.71 units on a scaleStandard Deviation 2.78
Secondary

Hospital Anxiety and Depression Scale (HADS)

A patient reported 14 question assessment that detects the status of depression and anxiety. Subjects completed the assessment at the Enrollment Visit, Days 30, 61, 91, and end of study visit (Day 121). The total score for anxiety and the total score for depression was calculated at Day 121. Low scores represent normal (0-7) while high scores represent abnormal (11-21).

Time frame: Change in Depression and Anxiety from Baseline to Day 121.

ArmMeasureGroupValue (MEAN)Dispersion
Active GroupHospital Anxiety and Depression Scale (HADS)Mean change in depression-.08 units on a scaleStandard Deviation 2.23
Active GroupHospital Anxiety and Depression Scale (HADS)Mean change in anxiety-.12 units on a scaleStandard Deviation 2.55
Sham GroupHospital Anxiety and Depression Scale (HADS)Mean change in depression-.50 units on a scaleStandard Deviation 2.81
Sham GroupHospital Anxiety and Depression Scale (HADS)Mean change in anxiety-.94 units on a scaleStandard Deviation 4.53
Secondary

Nerve Conduction Velocity (NCV) - Amplitude

NC-stat® DPNCheck® will be used to record NCV at Baseline and Day 121. Outcome Measure Data table displays change in NCV from Baseline to Day 121.

Time frame: The sural nerve conduction amplitude will be recorded at the Enrollment Visit and end of study visit (Day 121).

ArmMeasureValue (MEAN)Dispersion
Active GroupNerve Conduction Velocity (NCV) - Amplitude1.56 meters/secondStandard Deviation 7.68
Sham GroupNerve Conduction Velocity (NCV) - Amplitude4.38 meters/secondStandard Deviation 13.21
Secondary

Nerve Conduction Velocity (NCV) - Velocity

NC-stat® DPNCheck® will be used to record NCV at Baseline and Day 121. Outcome Measure Data table displays change in NCV from Baseline to Day 121.

Time frame: The sural nerve conduction velocity will be recorded at the Enrollment Visit and end of study visit (Day 121).

ArmMeasureValue (MEAN)Dispersion
Active GroupNerve Conduction Velocity (NCV) - Velocity1.69 micro voltsStandard Deviation 15.15
Sham GroupNerve Conduction Velocity (NCV) - Velocity-4.23 micro voltsStandard Deviation 13.49
Secondary

Neuro-QoL

A validated set of health-related quality of life measures that are domain specific.Subjects will completed 6 domains: (1) Pain, (2) Lost/Reduced Feeling, (3) Diffuse Sensory Motor Symptoms, (4) Restrictions in Activities of Daily Living, (5) Disruptions in Social Relationships, and (6) Emotional Distress.The short forms were completed by the subject at the Enrollment Visit and end of study visit (Day 121). Each question in the domain was rated on a symptom scale from 1 (never) to 5 (all the time) and a bothersome scale from 1 (none) to 3 (very much). The total score for the domain was calculated by multiplying the symptom score by the bothersome score. The scale range is from 1 to 15 where the minimum (best/least symptomatic) score is 1 and the maximum (worst/most symptomatic) score is 15.

Time frame: Change in each domain from Baseline to Day 121 is displayed below.

ArmMeasureGroupValue (MEAN)Dispersion
Active GroupNeuro-QoLChange in Domain 1: Pain-.22 units on a scaleStandard Deviation 0.84
Active GroupNeuro-QoLChange in Domain 2: Lost/Reducsed Feeling-.02 units on a scaleStandard Deviation 1.13
Active GroupNeuro-QoLChange in Domain 3: Diffuse Sensory Motor Symptoms.06 units on a scaleStandard Deviation 0.52
Active GroupNeuro-QoLChange in Domain 4: Restrictions in Activities-.12 units on a scaleStandard Deviation 1.41
Active GroupNeuro-QoLChange in Domain 5: Disruptions-.13 units on a scaleStandard Deviation 0.45
Active GroupNeuro-QoLChange in Domain 6: Emotional Distress-.25 units on a scaleStandard Deviation 0.52
Sham GroupNeuro-QoLChange in Domain 5: Disruptions-.15 units on a scaleStandard Deviation 0.84
Sham GroupNeuro-QoLChange in Domain 1: Pain-.54 units on a scaleStandard Deviation 0.9
Sham GroupNeuro-QoLChange in Domain 4: Restrictions in Activities-.5 units on a scaleStandard Deviation 1.16
Sham GroupNeuro-QoLChange in Domain 2: Lost/Reducsed Feeling-.37 units on a scaleStandard Deviation 0.97
Sham GroupNeuro-QoLChange in Domain 6: Emotional Distress-.29 units on a scaleStandard Deviation 1.07
Sham GroupNeuro-QoLChange in Domain 3: Diffuse Sensory Motor Symptoms-.35 units on a scaleStandard Deviation 0.8
Secondary

Pain Intensity (PI)

Mean change from Baseline to Day 121, using a validated 11-point Numeric Pain Rating Scale (NPRS) with scores 0-10, where 0 = no pain and 10 = worst possible pain.

Time frame: Collected as patient-reported outcomes on a paper diary and at the Enrollment visit to obtain a baseline value and on Days 61, 75, and 91

ArmMeasureValue (MEAN)Dispersion
Active GroupPain Intensity (PI)-2.69 units on a scaleStandard Deviation 2.47
Sham GroupPain Intensity (PI)-2.04 units on a scaleStandard Deviation 2.67
Secondary

Patient Global Impression of Change (PGIC)

A 7-choice validated categorical scale of overall change in status since initiation of treatment with the study device.PGIC was collected every 7 days in the paper diary, immediately following the morning treatment. Subjects were asked: Since the start of the study, my overall status is? Choices on the scale included: Very much worse, much worse, minimally worse, no change, minimally improved, much improved and very much improved.

Time frame: PGIC results at Day 121 displayed below.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Active GroupPatient Global Impression of Change (PGIC)Much Worse1 Participants
Active GroupPatient Global Impression of Change (PGIC)Very Improved0 Participants
Active GroupPatient Global Impression of Change (PGIC)Worse5 Participants
Active GroupPatient Global Impression of Change (PGIC)Very Much Improved0 Participants
Active GroupPatient Global Impression of Change (PGIC)Very Much Worse1 Participants
Active GroupPatient Global Impression of Change (PGIC)No Change2 Participants
Active GroupPatient Global Impression of Change (PGIC)Improved1 Participants
Active GroupPatient Global Impression of Change (PGIC)Not Reported8 Participants
Sham GroupPatient Global Impression of Change (PGIC)Much Worse2 Participants
Sham GroupPatient Global Impression of Change (PGIC)Not Reported5 Participants
Sham GroupPatient Global Impression of Change (PGIC)Very Much Worse1 Participants
Sham GroupPatient Global Impression of Change (PGIC)Worse1 Participants
Sham GroupPatient Global Impression of Change (PGIC)Improved2 Participants
Sham GroupPatient Global Impression of Change (PGIC)Very Improved1 Participants
Sham GroupPatient Global Impression of Change (PGIC)Very Much Improved3 Participants
Sham GroupPatient Global Impression of Change (PGIC)No Change4 Participants
Secondary

Skin Perfusion Pressures (SPP)

The Vasamed Sensilase PAD-IQ will be used to record SPP. This machine measures pressure (in mm Hg) of microcirculation using a laser Doppler sensor. Outcome Measure Data Table below displays change from Baseline to Day 121.

Time frame: SPP will be conducted at the Enrollment Visit, Day 61, and end of study visit (Day 121).

ArmMeasureGroupValue (MEAN)Dispersion
Active GroupSkin Perfusion Pressures (SPP)Change in Dorsal SPP.35 mmHgStandard Deviation 34.54
Active GroupSkin Perfusion Pressures (SPP)Change in Medial Plantar SPP-12.11 mmHgStandard Deviation 32.98
Sham GroupSkin Perfusion Pressures (SPP)Change in Dorsal SPP3.07 mmHgStandard Deviation 40.16
Sham GroupSkin Perfusion Pressures (SPP)Change in Medial Plantar SPP-2.06 mmHgStandard Deviation 32.38

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026