NCT01542827

Brief Summary

Topical menthol gels are classified 'topical analgesics' and are used to relieve aching and tenderness of muscles and joints. However, double-blind randomized controlled trials are lacking. Here the investigators examine - in a double-blind randomized controlled cross-over trial - the acute effect of topical menthol (Biofreeze) and placebo (gel with a menthol scent) on neck pain.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jan 2016

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 27, 2012

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 2, 2012

Completed
3.8 years until next milestone

Study Start

First participant enrolled

January 1, 2016

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2018

Completed
Last Updated

August 13, 2018

Status Verified

August 1, 2018

Enrollment Period

2.4 years

First QC Date

February 27, 2012

Last Update Submit

August 10, 2018

Conditions

Keywords

neck painmenthol

Outcome Measures

Primary Outcomes (1)

  • Neck pain intensity (scale 0-10)

    the participant rates pain intensity on a scale from 0-10 immediately before, and 0, 10, 20, 40 and 60 minutes after application of the gel. The primary efficacy endpoint is at 20 min

    before and 20 min after application

Secondary Outcomes (1)

  • Pressure pain threshold (PPT)

    before and 20 min after application

Study Arms (2)

Placebo

PLACEBO COMPARATOR

Topical gel containing a menthol scent, but no active menthol

Other: Placebo

Biofreeze

EXPERIMENTAL

Biofreeze topical gel containing 3.5% menthol

Other: Biofreeze

Interventions

The gel will be applied at 2.5 ml per 500 cm2 to the upper trapezius and neck muscles by a gloved technician

Also known as: Topical analgesic
Biofreeze
PlaceboOTHER

The gel will be applied at 2.5 ml per 500 cm2 to the upper trapezius and neck muscles by a gloved technician

Placebo

Eligibility Criteria

Age18 Years - 67 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • more than 30 days with neck pain during the last year
  • frequent pain or discomfort, defined as at least 3 days per week
  • pain intensity at least 4 on a scale of 0-10
  • working at least 30 hours per week

You may not qualify if:

  • blood pressure above 160/100 mmHg
  • pregnancy
  • life-threatening disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Research Centre for the Working Environment

Copenhagen, 2100, Denmark

Location

Related Links

MeSH Terms

Conditions

Musculoskeletal DiseasesNeck Pain

Interventions

Analgesics

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Sensory System AgentsPeripheral Nervous System AgentsPhysiological Effects of DrugsPharmacologic ActionsChemical Actions and UsesCentral Nervous System AgentsTherapeutic Uses

Study Officials

  • Lars L Andersen, PhD

    Professor

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

February 27, 2012

First Posted

March 2, 2012

Study Start

January 1, 2016

Primary Completion

June 1, 2018

Study Completion

June 1, 2018

Last Updated

August 13, 2018

Record last verified: 2018-08

Locations