Evidence map›Paper›PMID 17406167›Full record

Trial reportMedGenMed : Medscape general medicine2006

A comparison of the lidocaine patch 5% vs naproxen 500 mg twice daily for the relief of pain associated with carpal tunnel syndrome: a 6-week, randomized, parallel-group study.

Srinivas Nalamachu, R S Crockett, Arnold R Gammaitoni, Errol M Gould

Registry-linked trialOpen access · greenAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in MedGenMed : Medscape general medicine, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02696720 (A Randomized Controlled Trial of Lidocaine Patch for Lower Limb Amputation Pain), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.6field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02696720 phase2withdrawnnot on this mapstarted 2016, after this paper: background citation

A Randomized Controlled Trial of Lidocaine Patch for Lower Limb Amputation Pain

TypeinterventionalSponsorBrugmann University HospitalRan2016 to 2017Enrolled0ConditionsPhantom Limb Pain (PLP), Primary/Secondary Scar HyperalgesiaArmsLidocaine, Sham
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Article
  3. Topical Lidocaine for Chronic Pain Treatment.Drug design, development and therapy · 2021
    Review
  4. Quality of Care for Work-Associated Carpal Tunnel Syndrome.Journal of occupational and environmental medicine · 2017
    Article
  5. Review
  6. Article
  7. Article
  8. Gynecologic management of neuropathic pain.American journal of obstetrics and gynecology · 2011
    Review
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Srinivas NalamachuKansas City University of Medicine and Biosciences, Kansas City, Missouri, USA. nalamachu@sbcglobal.net
R S Crockett
Arnold R Gammaitoni
Errol M Gould
Kansas City University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesCarpal tunnel syndrome (CTS) is a common entrapment neuropathy caused by median nerve compression. This pilot clinical trial was designed to compare the safety and effectiveness of the lidocaine patch 5% to that of naproxen 500 mg twice daily for the treatment of neuropathic pain associated with CTS.

methodsIn this 6-week, randomized, parallel-group, open-label, multicenter study, participants from 2 practice sites, aged 18 to 75 years with clinical/electrodiagnostic evidence of CTS, were randomized to receive up to 3 lidocaine 5% patches every 24 hours or naproxen 500 mg twice daily for 6 weeks. Outcome assessments included mean changes between baseline and Week 6 average pain intensity (Brief Pain Inventory [BPI]: Question 5, Average Pain Intensity [API]), an Investigator Clinical Global Impression of Improvement (CGI-I) over the course of the treatment period and a comparison of patient satisfaction (Clinical Global Assessment of Treatment [CGAT]).

resultsOne hundred patients were randomized in this study, 52 in the lidocaine patch 5% group and 48 in the naproxen 500 mg twice daily group. Significant reductions in API scores were observed between baseline and Week 6 for both lidocaine patch 5% (P < .0001) and naproxen 500 mg twice daily (P = .0004); however, there were no statistically significant differences between treatments (P = .083). There was a significant (P = .016) difference in the CGI-I for lidocaine patch 5% (51.1%) compared with naproxen 500 mg twice daily (24.3%). Whereas 71.8% of the lidocaine patch 5% patients reported being "satisfied" to "very satisfied" with the treatment, only 63.2% of naproxen 500 mg twice daily patients reported likewise, although the difference was not statistically significant. Both treatments were well tolerated. Two patients reported treatment-related adverse events in the lidocaine patch 5% group and 6 in the naproxen 500 mg twice daily group, all of which were considered mild or moderate in severity.

conclusionsThis study demonstrates that the lidocaine patch 5% is effective in significantly relieving the pain associated with CTS and is well tolerated. The patch may offer patients an effective, nonsystemic, noninvasive treatment for the management of their symptoms. Further controlled studies are warranted.

Indexed as

Palliative CareAdministration, CutaneousAdultAgedAnesthetics, LocalAnti-Inflammatory Agents, Non-SteroidalCarpal Tunnel SyndromeDrug Administration ScheduleFemaleHumansLidocaineMaleMiddle AgedNaproxenPilot ProjectsTreatment OutcomeAnesthetics, LocalAnti-Inflammatory Agents, Non-SteroidalLidocaineNaproxen

Identifiers

PMID17406167
PMCPMC1781260
OpenAlexW20513675

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.