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Knee OsteoarthritisPhase 1/2NCT01654302

Efficacy and Safety of Synera in Osteoarthritis Pain

A Phase 1/2 study testing Synera and Inactive patch in people with Knee Osteoarthritis, run by Thomas J. Schnitzer 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

Knee osteoarthritis (OA) can result in significant pain and limitation of function. A number of topical non-steroidal anti-inflammatory drugs have been shown to reduce pain in this condition. Read more about this study

Who is it for?
Ages 40 years and older
Conditions the study is for
Knee Osteoarthritis
What is being tested?
Synera and Inactive patch
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
40 participants
Where
1 siteUnited States
Study dates
Sep 2013to Feb 2015
Phase
Phase 1/2
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 40 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Men and women, age 40 years and above
  • Meet American College of Rheumatology criteria for knee OA
  • Knee pain most days of the week for the past month
  • Knee pain > 5/10 after exercise intervention
  • Capable of undertaking exercise intervention
  • Stable cardiovascular function
  • Able to return for all clinic visits
  • Able to read and understand the informed consent document

Who cannot join

  • Use of a walker to ambulate or inability to ambulate
  • Other forms of arthritis
  • Other major causes of pain that could be expected to interfere with assessment of pain during this trial, e.g., recurrent migraine, back pain, fibromyalgia
  • History of myocardial infarction
  • Blood Pressure > 140 systolic/100 diastolic
  • Scheduled for and likely to need joint replacement surgery in the next 3 months
  • Any medical condition that in the judgment of the investigator would make the participant not suitable for the study
  • Sensitivity to lidocaine, topical or injectable analgesics/anesthetics.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Northwestern University

    Chicago, Illinois, 60611

Other trials in United States

About this study

Official title: Efficacy and Safety of Synera in OA Pain

Knee osteoarthritis (OA) can result in significant pain and limitation of function. A number of topical non-steroidal anti-inflammatory drugs have been shown to reduce pain in this condition. This study examines a different topical approach, utilizing a topical anesthetic agent, to evaluate if application of such an agent would provide relief of exercise-induced knee pain in people with knee OA.

Read the detailed description

Subjects participated in two visits each at least 1 week apart, where they underwent two exercise interventions - a baseline exercise without treatment and a experimental exercise with intervention (Synera patch or Inactive patch). Participants rated their pain on a NRS-11 1 minute, 5 minutes, and 60 minutes after both exercises, as well as 6 hours after the experimental exercise, before bedtime, and the following morning. Subjects were randomized to receive either Synera at the first visit and the inactive patch at the second visit or the inactive patch at the first visit and Synera patch at the second visit.

Being tested
Synera, Inactive patch
Medical subject headings
Osteoarthritis, Knee

What participants receive

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

  • SyneraDrug

    Also called lidocaine/tetracaine

    70 mg lidocaine/ 70 mg tetracaine topical patch applied once for 12 hours

  • Inactive patchDrug

    Also called placebo

    placebo patch applied once for 12 hours

Study groups in NCT01654302
Study groupRoleWhat they receive
SyneraActive comparatorlidocaine/tetracaine patch with heating component which consists of iron powder, activated carbon, sodium chloride, wood flour, water and filter paper.
Receives: Drug: Synera
Inactive PatchPlacebo comparatorplacebo patch identical in appearance and composition (namely, the heating components) to the active patch other than lacking the lidocaine and tetracaine active ingredients.
Receives: Drug: Inactive patch

What is being measured

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

  1. Index Knee Pain Scores on a Numeric Rating Scale (NRS)

    Subject rated index knee pain 5 minutes after stopped experimental exercise (with intervention). Index knee pain was reported using the Numeric Rating Scale, a scale from 0 to 10 where 0 = no pain and 10 = the worst pain possible.

    Measured: 5 minutes after stopped exercise, performed 1 hour after intervention (patch application)

Timeline

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

  1. First posted31 Jul 2012 (estimated)
  2. Study startSep 2013
  3. Primary completionSep 2014
  4. Study completionFeb 2015

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01654302
Sponsor's protocol ID
STU00061115
Status last verified
Apr 2015
First submitted
11 Jul 2012
Last updated
12 May 2015
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Synera and Inactive patch in people with Knee Osteoarthritis, run by Thomas J. Schnitzer 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 8 inclusion and 8 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 12 May 2015. 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. 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.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Nov 2014). 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?

Index Knee Pain Scores on a Numeric Rating Scale (NRS) (time frame: 5 minutes after stopped exercise, performed 1 hour after intervention (patch application)). 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 12 May 2015; AzTrials last refreshed its copy on 8 Nov 2026.

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