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Postherpetic NeuralgiaPhase 2NCT00916942

Study of NGX-4010 With the Use of Open Label Lidocaine (2.5%)/Prilocaine (2.5%) Cream for the Treatment of Postherpetic Neuralgia (PHN)

A Phase 2 study testing capsaicin 8% and Lidocaine (2.5%)/Prilocaine (2.5%) Cream in people with Postherpetic Neuralgia, run by NeurogesX at 6 sites 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

This study is an open-label multi-center to evaluate the tolerability of treatment with NGX-4010 use with pre-patch topical application of a topical anesthetic cream. This is an open-label study. No hypothesis testing will be performed. Read more about this study

Who is it for?
Ages 18 to 90 years
Conditions the study is for
Postherpetic Neuralgia
What is being tested?
capsaicin 8% and Lidocaine (2.5%)/Prilocaine (2.5%) Cream
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
6 sitesUnited States
Study dates
Jun 2009to Jul 2009
Phase
Phase 2
Are there results?
None posted in the registry

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 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Between 18 and 90 years of age, inclusive.
  • Be in good health.
  • Prior diagnosis of PHN with pain persisting at least 3 months following shingles vesicle crusting.
  • Pain due to PHN that, in the opinion of the investigator, is of appropriate severity for treatment with NGX-4010. The subject should have completed at least 3 NPRS scores.
  • Intact, unbroken skin over the painful area(s) to be treated.
  • Female subjects with child-bearing potential must have a negative serum beta hCG pregnancy test, to be performed at the Screening Visit.
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  • All subjects must be willing to use effective methods of birth control and/or refrain from participating in a conception process during the study and for 30 days following study termination.
  • Be willing and able to comply with protocol requirements for the duration of study participation. (Such requirements include, but are not limited to: attending all study visits, refraining from elective surgery or extensive travel during study participation.)
  • Subjects must sign an informed consent form for this study approved by the IRB. -

Who cannot join

  • Receipt of NGX-4010 open label or blinded study patches within 12 weeks of the Study Patch Application Visit (Day 0).
  • Concomitant opioid medication, unless orally or transdermally administered and not exceeding a total daily dose of morphine 60 mg/day, or equivalent. Parenteral opioid use is excluded, regardless of dose.
  • Unavailability of an effective pain medication strategy for the subject, such as unwillingness to use opioid analgesics during study treatment, or high tolerance to opioids precluding the ability to relieve treatment-associated discomfort with oxycodone or other analgesic, as judged by the Investigator.
  • Active substance abuse or history of chronic substance abuse within the past year, or prior chronic substance abuse (including alcoholism) judged likely to recur during the study period by the investigator.
  • Recent use (within 7 days preceding the Study Patch Application Visit [Day 0]) of any topically applied pain medication, such as non-steroidal anti-inflammatory drugs, menthol, methyl salicylate, local anesthetics (including Lidoderm®), steroids or capsaicin products on the painful areas.
  • Current or use within the past 30 days of any investigational agent
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  • Patients treated with class I (such as tocainide and mexiletine) or III anti-arrhythmic drugs.
  • Significant pain of an etiology other than PHN, for example, compression-related neuropathies (e.g., spinal stenosis), fibromyalgia or arthritis. Subjects must not have significant ongoing pain from other cause(s) that may interfere with judging PHN related pain.
  • Neuropathic pain areas located only on the face, above the hairline of the scalp, and/or in proximity to mucous membranes
  • Patients with congenital or idiopathic methemoglobinemia
  • Patients with glucose-6-phosphate dehydrogenase deficiencies
  • Uncontrolled (systolic blood pressure ≥ 175 mmHg or diastolic blood pressure ≥105 mmHg) or unstable hypertension
  • Clinically significant cardiovascular disease defined as cerebrovascular accident, transient ischemic attack, myocardial infarction, unstable angina, stable angina, current arrhythmia, coronary artery disease, any heart surgery including coronary artery bypass graft surgery or percutaneous coronary angioplasty/stent placement, or valvular heart disease within the past 6 months
  • Clinically significant abnormal ECG at screening.
  • Clinically significant abnormal labs at screening.
  • Significant ongoing or untreated abnormalities in cardiac, renal, hepatic, or pulmonary function.
  • Active malignancy or past history of malignancy during the past 5 years (history of squamous cell carcinoma or basal cell carcinoma of the skin are exempted from the exclusion criteria except if they occurred in the area of treatment).
  • Any implanted medical device (spinal cord stimulator, intrathecal pump or peripheral nerve stimulator) for the treatment of neuropathic pain.
  • Hypersensitivity to capsaicin (i.e., chili peppers or Over-the-Counter (OTC) capsaicin products), or any components of the capsaicin patch, Cleansing Gel, oxycodone, hydrocodone, or adhesives.
  • Patients with a known history of sensitivity to local anesthetics (including lidocaine and prilocaine) of the amide type or to any other component of the product
  • Evidence of cognitive impairment including dementia that may interfere with subject's ability to complete daily pain diaries requiring recall of average pain level in the past 24 hours.

Trial locations and contacts

6 sites in 1 country.

6 sites in 1 country

United States6 sites
  • Clinical Trials of America, Inc.

    Hickory, North Carolina, 28601

  • Drug Studies America

    Marietta, Georgia, 30060

  • Anchor Research Center

    Naples, Florida, 34102

  • Lifetree Clinical Research

    Salt Lake City, Utah, 84106

  • A & A Pain Institute

    St Louis, Missouri, 63141

  • Comprehensive NeuroScience, Inc.

    St. Petersburg, Florida, 33702

Other trials in United States

About this study

Official title: An Open-Label Study Of The Use Of Topical Lidocaine (2.5%)/Prilocaine (2.5%) Cream As Pre-Treatment For NGX-4010 In Subjects With Postherpetic Neuralgia (PHN)

This study is an open-label multi-center to evaluate the tolerability of treatment with NGX-4010 use with pre-patch topical application of a topical anesthetic cream. This is an open-label study. No hypothesis testing will be performed.

Eligible subjects will have PHN and a level of pain at an intensity level deemed appropriate for open-label treatment with NGX-4010, as judged by the Investigator. Painful areas of up to a maximum of 1000 cm2 will be pre-treated with lidocaine (2.5%)/prilocaine (2.5%) cream for 60 minutes followed by a single, 60-minute application of NGX-4010. Subjects may be on chronic pain medication regimens, but currently will not be using any topical pain medications on the affected areas, such as non-steroidal anti-inflammatory drugs, menthol, methyl salicylate, local anesthetics including Lidoderm® (lidocaine patch 5%), steroids or capsaicin.

Being tested
capsaicin 8%, Lidocaine (2.5%)/Prilocaine (2.5%) Cream
Keywords
Tolerability study
Medical subject headings
Neuralgia, Postherpetic

What participants receive

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

  • capsaicin 8%Drug

    High concentration capsaicin 8% dermal patch applied for one hour

  • Lidocaine (2.5%)/Prilocaine (2.5%) CreamDrug

    Pre-treatment for NGX-4010

Study groups in NCT00916942
Study groupRoleWhat they receive
NGX-4010 patchExperimentalNot described
Receives: Drug: capsaicin 8%
Lidocaine (2.5%)/Prilocaine (2.5%) CreamExperimentalPre-treatment for NGX-4010
Receives: Drug: Lidocaine (2.5%)/Prilocaine (2.5%) Cream

What is being measured

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

  1. Duration of patch application

    Measured: Day of treatment

Secondary outcomes (1)
  1. Mean change in NPRS scores from pre-treatment values to subsequent time points on the day of treatment

    Measured: Day of treatment

Timeline

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

  1. First posted10 Jun 2009 (estimated)
  2. Study startJun 2009
  3. Primary completionJun 2009
  4. Study completionJul 2009

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 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00916942
Sponsor's protocol ID
C123
Status last verified
Sep 2009
First submitted
8 Jun 2009
Last updated
9 Sep 2009
Results posted
No

Publications

  • Webster LR, Nunez M, Tark MD, Dunteman ED, Lu B, Tobias JK, Vanhove GF. Tolerability of NGX-4010, a capsaicin 8% dermal patch, following pretreatment with lidocaine 2.5%/prilocaine 2.5% cream in patients with post-herpetic neuralgia. BMC Anesthesiol. 2011 Dec 19;11:25. doi: 10.1186/1471-2253-11-25.

    PubMed 22182397

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing capsaicin 8% and Lidocaine (2.5%)/Prilocaine (2.5%) Cream in people with Postherpetic Neuralgia, run by NeurogesX at 6 sites 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 9 inclusion and 21 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 9 Sep 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 6 sites 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.

What does this phase mean?

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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Duration of patch application (time frame: Day of treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00916942, which also lists 1 linked publication.

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 9 Sep 2009.

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