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Spinal Cord InjuriesCapsaicinNCT02441660

Capsaicin 8% Patch for Spinal Cord Injury Neuropathic Pain

A study testing Capsaicin 8% Patch and Low Dose Capsaicin 0.025% Well Patch in people with Spinal Cord Injuries and Neuropathic Pain, run by The University of Texas Health Science Center at San Antonio at 1 site 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

A prospective case control study to determine the effectiveness and longevity of 8% capsaicin patch(es) in treating neuropathic pain in persons with spinal cord injury. The investigators will study spinal cord injury patients at South Texas Veterans Health Care Systems Spinal Cord Injury inpatient unit and outpatient… Read more about this study

Who is it for?
Ages 18 to 99 yearsHealthy volunteers can take part
Conditions the study is for
Spinal Cord Injuries, Neuropathic Pain
What is being tested?
Capsaicin 8% Patch and Low Dose Capsaicin 0.025% Well Patch
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
1 siteUnited States
Study dates
Apr 2016to 2 May 2022
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 99 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Diagnosis of SCI
  • Neuropathic pain below level of injury
  • Surface area of pain no larger than 2 patches
  • Failed or did not tolerate gabapentin 3600mg/day, pregabalin 600mg/day, capsaicin cream and/or lidocaine cream
  • Skin over painful area intact

Who cannot join

  • Pain over open wound
  • Previously documented allergy to capsaicin
  • Superficial burn over area of pain
  • Premorbid (before SCI) neuropathic pain
  • HIV/AIDS neuropathy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Audie Lee Murphy VA Hospital

    San Antonio, Texas, 78229

Other trials in United States

About this study

A prospective case control study to determine the effectiveness and longevity of 8% capsaicin patch(es) in treating neuropathic pain in persons with spinal cord injury. The investigators will study spinal cord injury patients at South Texas Veterans Health Care Systems Spinal Cord Injury inpatient unit and outpatient clinics.

Read the detailed description

The investigators will recruit ~ 20 patients with chronic spinal cord injury (SCI) and chronic neuropathic pain (>6months) below level of injury who have failed multiple pharmacological agents. Pre-study data collection will include subjective description of pain, baseline visual analog scale (VAS), numeric pain rating scale (NPRS), a numerical scale such as short form (SF) 36 form that measures quality of life parameters, subjective functional independence (FIM) scores, and pain diagrams will be obtained on each participant. Written informed consent will be obtained. After randomization patients will be assigned to a different sequence of treatment.

All patients will receive either the treatment and control patches in a randomized order for a total of three treatment periods (control, treatment, treatment for example). When assigned to received treatment arm of study patients will receive Qutenza Capsaicin 8% patch(es) applied for 1 hour after pre- treatment with topical lidocaine. The control group will receive a low dose (0.04%) amount of capsaicin in patch form using an identical application procedure.

Investigators will give each patient a diary to self record daily VAS/NPRS scores. Investigators will then schedule routine f/u via telephone call at 2, 4, 8, and 12 weeks post application to accurately report onset of relief and obtain NPRS scores at 2, 4, 8, 12 week points. Patients will follow up in clinic at the end of the 12 week study to repeat data collection using our quality of life scale (SF 36) and FIM scores. Investigators will then use data analysis to record percentage of reduction in NPRS/ VAS, and changes in SF 36 and FIM scores at any given time point vs baseline. For those that continue to have pain relief at 12 week mark we will periodically call every 4 months after study completion to assess for total duration of pain relief for up to 1 year post application.

Being tested
Capsaicin 8% Patch, Low Dose Capsaicin 0.025% Well Patch
Medical subject headings
Spinal Cord Injuries, Neuralgia

What participants receive

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

  • Capsaicin 8% PatchDrug

    Also called Qutenza

    Applied topically for 1 hour

  • Low Dose Capsaicin 0.025% Well PatchDrug

    Also called Control Capsacin patch

Study groups in NCT02441660
Study groupRoleWhat they receive
Investigational Capsacin, Then Control CapsacinExperimentalQutenza, Capsaicin 8% Patch will be used for 12 weeks followed by capsacin 0.025% Well Patch
Receives: Drug: Capsaicin 8% Patch; Drug: Low Dose Capsaicin 0.025% Well Patch
Control Capsacin, Then Investigational CapsacinExperimentalActive control with low dose capsaicin 0.025% Well Patch used for 12 weeks followed by Qutenza 8% Patch
Receives: Drug: Capsaicin 8% Patch; Drug: Low Dose Capsaicin 0.025% Well Patch

What is being measured

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

  1. Change in Pain Relief With Visual Analog (VAS) Pain Scale

    The Visual Analog Scale (VAS) was used as the primary outcome measure to quantify pain on a scale of 0-10, with 0 being no pain and 10 being the worst pain. VAS was measured at weeks 2,4,6,8,10 and12 during each 12- week block.

    Measured: Change in pain at 2,4,6,8, 10 and 12 weeks

  2. Change in Quality of Life as Measured by the World Health Organization Quality of Life (WHOQOL-BREF)

    The World Health Organization Quality of Life (WHOQOL-BREF) questionnaire is a scale used to assess an individual's perception of their quality of life. Its domains include physical health, psychological health, social relationships, and patient environment. It is scored from 0-100, where lower scores indicate poorer perception of quality of life and higher scores indicate better perception. This scale was used to investigate if there was any pattern of change in QOL due to improved pain control. WHO-QOL-BREF was also measured every 4 weeks of each period.

    Measured: Every 4 weeks for 12 weeks

  3. Change in Spinal Cord Independence Measure (SCIM)

    The Spinal Cord Independence Measure (SCIM) is a reliable scale that measures proficiency of activities of daily living (ADL's) of patients with spinal cord injuries. (28) It is broken up into four subscales including self-care, respiration and sphincter control, and mobility with a total score combining all 3 outcomes.

    It is scored from 0-100, where lower numbers indicate more dependence on others and higher numbers indicate less dependence. This tool can be applied practically to the study to investigate everyday function before and after patch application. SCIM was administered every 4 weeks of each period.

    Measured: Every 4 weeks for12 weeks

Timeline

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

  1. First posted12 May 2015 (estimated)
  2. Study startApr 2016
  3. Primary completion31 Jul 2021
  4. Study completion2 May 2022

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
Study participants are assigned to both strengths of the intervention, so all study participants receive both strengths, thus acting as their own control. Data will be compared according to intervention, rather than following each subject from beginning of study through both interventions.
Masking
Single blind
Who is masked
Participant
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02441660
Sponsor's protocol ID
HSC20150322H
Acronym
Capsaicin
Status last verified
Jan 2023
First submitted
28 Apr 2015
Last updated
26 Jan 2023

Questions about this trial

What is this clinical trial studying?

A study testing Capsaicin 8% Patch and Low Dose Capsaicin 0.025% Well Patch in people with Spinal Cord Injuries and Neuropathic Pain, run by The University of Texas Health Science Center at San Antonio at 1 site 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 5 inclusion and 5 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 26 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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. 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?

Yes. Results are posted in the registry (first posted 6 Oct 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change in Pain Relief With Visual Analog (VAS) Pain Scale (time frame: Change in pain at 2,4,6,8, 10 and 12 weeks). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 26 Jan 2023.

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