NCT02809911

Brief Summary

Evaluate the effectiveness of the Provant Therapy System compared to sham on pain sensitivity and nervous system response to various qualities of experimentally induced pain in the upper and lower extremities of subjects with painful peripheral diabetic neuropathy.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
41

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2016

Shorter than P25 for not_applicable

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2016

Completed
19 days until next milestone

First Submitted

Initial submission to the registry

June 20, 2016

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 22, 2016

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2016

Completed
7 months until next milestone

Results Posted

Study results publicly available

February 13, 2017

Completed
Last Updated

March 31, 2017

Status Verified

October 1, 2016

Enrollment Period

2 months

First QC Date

June 20, 2016

Results QC Date

October 26, 2016

Last Update Submit

March 1, 2017

Conditions

Outcome Measures

Primary Outcomes (2)

  • Upper Extremity - Pain Sensitivity to Various Experimentally Induced Pain Stimuli

    Response data by induced pain stimuli after the initial treatment with the study device in the upper extremity. The stimuli / test was determined to either favor sham or favor Provant Therapy. This included a total of 20 stimuli/tests (comparing pre-treatment to post initial treatment results) as follows: Cuff Pain Threshold (greater decrease favored), Cuff Pain Tolerance (smaller increase favored), Cuff Pressure Threshold (greater decrease favored), Pressure Tolerance (greater increase favored), Mechanical Pain Threshold (greater decrease favored), Biothesiomety (greater decrease favored) on the forearm, palm, thumb, index finger, middle finger, ring finger and pinky finger, Heat Tolerance (greater decrease favored), Cold Tolerance (greater decrease favored), Pain (greater increase favored), Time to Pain (greater increase favored), Pain Tolerance Grip Strength (greater increase favored) and Final Pain (greater decrease favored).

    4 weeks

  • Lower Extremity - Pain Sensitivity to Various Experimentally Induced Pain Stimuli

    Response data by induced pain stimuli after the initial treatment with the study device in the upper extremity. The stimuli / test was determined to either favor sham or favor Provant Therapy. This included a total of 20 stimuli/tests (comparing pre-treatment to post initial treatment results) as follows: Cuff Pain Threshold (greater decrease favored), Cuff Pain Tolerance (smaller increase favored), Cuff Pressure Threshold (greater decrease favored), Pressure Tolerance (greater increase favored), Mechanical Pain Threshold (greater decrease favored), Biothesiomety (greater decrease favored) on the forearm, palm, thumb, index finger, middle finger, ring finger and pinky finger, Heat Tolerance (greater decrease favored), Cold Tolerance (greater decrease favored), Pain (greater increase favored), Time to Pain (greater increase favored), Pain Tolerance Grip Strength (greater increase favored) and Final Pain (greater decrease favored). .

    4 weeks

Study Arms (2)

Sham of Provant

OTHER

Sham of Provant Therapy System

Device: Provant

Active Provant

OTHER

Active Provant Treatment

Device: Provant

Interventions

ProvantDEVICE
Active ProvantSham of Provant

Eligibility Criteria

Age22 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subject age is greater than or equal to 22 years and less than 80 years of age.
  • Subject has documented Type 2 diabetes.
  • Subject's BMI ≤ 38.
  • Subject has peripheral diabetic neuropathy with pain, numbness, tingling, and/or burning in at least one foot.
  • Subject is in pain Phase 2, 3, or 4 (Appendix B).
  • Subject is willing to forego smoking during the Enrollment Visit and Visit 3 (Crossover) for 4 hours prior to and through the duration of testing (\~5 hours).
  • Subject is willing and able to give written informed consent and to comply with all parts of the study protocol.
  • Female subjects must be post-menopausal, surgically sterile, abstinent, or practicing (or agree 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).
  • Subject is able to eat in the morning prior to the induced pain tests and provide a meal/snacks for themselves during the day to maintain blood sugar levels.

You may not qualify if:

  • Subject has current pain other than their painful peripheral diabetic neuropathy.
  • Subject has a concomitant medical condition that, in the opinion of the investigator, would confound the ability to conduct induced pain testing in the upper and lower extremities.
  • Subject has taken prescription opioids for their pain within 30 days of the Screening Visit or 6 weeks of Screening for long acting medications.
  • Subject has used topical capsaicin within 30 days of the Screening Visit.
  • Subject has Type 1 diabetes.
  • Subject is in pain Phase 1 or 5 (Appendix B).
  • Subject has an active, open ulcer on either lower extremity of arterial, venous or mixed disease origin.
  • Subject has peripheral arterial disease as determined by an Ankle-Brachial Index (ABI) of \<0.5 or \> 1.4. See Appendix C for details on obtaining the ABI.
  • Subject has venous insufficiency classified by the Venous Insufficiency Classification System (CEAP) of grade C6. See Appendix D for description of the venous insufficiency grading.
  • Subject has an unhealed surgery on the legs, feet, arms or hands.
  • Subject has smoked within 4 hours of the Screening Visit.
  • Subject has received any investigational drug or device within 30 days or 5 half-lives of the drug, whichever is longer, prior to the Screening Visit or is enrolled in another clinical trial.
  • Subject has used systemic corticosteroids within 2 months of the Screening Visit.
  • Subject has a history of a solid tumor that is not in complete remission for greater than 2 years other than successfully treated non-metastatic basal cell or squamous cell carcinomas of the skin in the treatment area.
  • Subject has a serious psychosocial co-morbidity.
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Sun Research Institute

San Antonio, Texas, 78215, United States

Location

Multi-Phase Trials, LLC

San Antonio, Texas, 78217, United States

Location

Results Point of Contact

Title
Heather Vander Ploeg
Organization
Regenesis Biomedical

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 20, 2016

First Posted

June 22, 2016

Study Start

June 1, 2016

Primary Completion

August 1, 2016

Study Completion

August 1, 2016

Last Updated

March 31, 2017

Results First Posted

February 13, 2017

Record last verified: 2016-10

Data Sharing

IPD Sharing
Will not share

Locations