Condition category
Musculoskeletal Diseases
Date applied
29/09/2006
Date assigned
29/09/2006
Last edited
21/07/2008
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Not provided at time of registration

Trial website

Contact information

Type

Scientific

Primary contact

Dr Colin Greaves

ORCID ID

Contact details

Wyndham House Surgery
Silverton
EX5 4HZ
United Kingdom
+44 (0)1392 860034
c.j.greaves@exeter.ac.uk

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

N0100168711

Study information

Scientific title

Acronym

Study hypothesis

1. To determine whether magnetic bracelets of 50mT field strength (at the ventral wrist-facing surface) are sufficiently convincing placebos for use in future trials of magnetic bracelets. The null hypothesis is that the proportion of people believing a bracelet is magnetic will be the same for people given (and allowed to test) 50mT and 180mT bracelets.
2. A secondary hypothesis relates to the difference in strength of belief that each type of bracelet may be therapeutic in relieving osteoarthritis pain.

Ethics approval

Added 21 July 2008: the study protocol and procedures were submitted to N&E Devon NHS Research Ethics Committee who considered that, as study design work conducted outside any NHS setting, the study did not require formal Committee approval.

Study design

Randomised controlled trial

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Not specified

Trial type

Not Specified

Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet

Condition

Musculoskeletal Diseases

Intervention

Randomised controlled trial, comparing belief in magnetic status between 2 groups.

Intervention type

Other

Phase

Not Specified

Drug names

Primary outcome measures

Added 21 July 2008:
Based on the magnet assigned to the participant, responses to the question "Which kind of magnet do you think you have been given?" [Active /Inactive /Don’t know].

Secondary outcome measures

Added 21 July 2008:
Based on the magnet assigned to the participant, responses to the question “How convinced are you that wearing this bracelet on your wrist for 3 months would help to relieve pain in your joints?” [visual analogue scale from 0=Not at all to 10 = Totally convinced].

Overall trial start date

01/10/2005

Overall trial end date

01/06/2006

Reason abandoned

Eligibility

Participant inclusion criteria

108 osteoarthritis patients who do not currently use magnetic bracelet therapy.

Participant type

Patient

Age group

Not Specified

Gender

Not Specified

Target number of participants

108

Participant exclusion criteria

Not provided at time of registration

Recruitment start date

01/10/2005

Recruitment end date

01/06/2006

Locations

Countries of recruitment

United Kingdom

Trial participating centre

Wyndham House Surgery
Silverton
EX5 4HZ
United Kingdom

Sponsor information

Organisation

Record Provided by the NHSTCT Register - 2006 Update - Department of Health

Sponsor details

The Department of Health
Richmond House
79 Whitehall
London
SW1A 2NL
United Kingdom
+44 (0)20 7307 2622
dhmail@doh.gsi.org.uk

Sponsor type

Government

Website

http://www.dh.gov.uk/Home/fs/en

Funders

Funder type

Government

Funder name

Mid Devon Primary Care Trust & Mid Devon Research Group (UK)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Funder name

NHS R&D Support Funding

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

2008 results in http://www.ncbi.nlm.nih.gov/pubmed/18534331

Publication citations

  1. Results

    Greaves CJ, Harlow TN, Exploration of the validity of weak magnets as a suitable placebo in trials of magnetic therapy., Complement Ther Med, 2008, 16, 3, 177-180, doi: 10.1016/j.ctim.2008.01.002.

Additional files

Editorial Notes