Condition category
Injury, Occupational Diseases, Poisoning
Date applied
22/10/2008
Date assigned
24/10/2008
Last edited
21/09/2009
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Not provided at time of registration

Trial website

http://www2.warwick.ac.uk/fac/med/research/hsri/emergencycare/research/whiplash/

Contact information

Type

Scientific

Primary contact

Prof Sarah Lamb

ORCID ID

Contact details

University of Warwick
Warwick Clinical Trials Unit
Room A1.04 Medical School Building
Coventry
CV4 7AL
United Kingdom
+44 (0)24 7657 4658
s.lamb@warwick.ac.uk

Additional identifiers

EudraCT number

ClinicalTrials.gov number

Protocol/serial number

HTA 02/35/02 - Incentive

Study information

Scientific title

Acronym

MINT

Study hypothesis

An incentive of a £5 gift voucher will increase the return rate of postal questionnaires in a large randomised controlled trial (RCT) evaluating conservative treatments for Whiplash Association Disorders (WAD).

The main trial "Managing Injuries of the Neck Trial - MINT" is registered with ISRCTN33302125.

Please note that, as of 03/09/2009, the anticipated start and end dates of this trial have been updated from 08/06/2006 and 15/05/2008 to 01/11/2004 and 31/03/2009, respectively.

Ethics approval

The trial was approved by the Trent MREC on 28/04/2004. Each participating centre received approval from LREC.

Study design

Randomised controlled trial

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Other

Trial type

Other

Patient information sheet

Condition

Acute neck sprain (whiplash)

Intervention

Randomised 1:1 ratio to receive incentive or no incentive with follow-up questionnaire, either 4-month follow-up or, for those participants that have already passed the 4-month follow-up, 8-month follow-up.

Schedule of chase-up by the study team:

1st telephone call: 1 week after questionnaire sent out
2nd telephone call: 2 weeks after questionnaire sent out

If the questionnaire was not yet returned at this point, a second copy of questionnaire was sent.

3rd telephone call: 1 week after second questionnaire sent out
4th telephone call: 2 weeks after second questionnaire sent out

Intervention type

Other

Phase

Not Specified

Drug names

Primary outcome measures

Questionnaire return.

Secondary outcome measures

Number of questionnaires returned without chasing by the study team.

Overall trial start date

01/11/2004

Overall trial end date

31/03/2009

Reason abandoned

Eligibility

Participant inclusion criteria

Participants in the Managing Injuries of the Neck Trial (MINT; registered with ISRCTN33302125) that have returned their baseline questionnaire.

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

2160

Participant exclusion criteria

Does not match inclusion criteria

Recruitment start date

01/11/2004

Recruitment end date

31/03/2009

Locations

Countries of recruitment

United Kingdom

Trial participating centre

University of Warwick
Coventry
CV4 7AL
United Kingdom

Sponsor information

Organisation

Department of Health (UK)

Sponsor details

Quarry House
Quarry Hill
Leeds
LS2 7UE
United Kingdom

Sponsor type

Government

Website

http://www.dh.gov.uk

Funders

Funder type

Government

Funder name

NIHR Health Technology Assessment Programme - HTA (UK)

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

2009 results in http://www.ncbi.nlm.nih.gov/pubmed/19545427

Publication citations

  1. Results

    Gates S, Williams MA, Withers E, Williamson E, Mt-Isa S, Lamb SE, Does a monetary incentive improve the response to a postal questionnaire in a randomised controlled trial? The MINT incentive study., Trials, 2009, 10, 44, doi: 10.1186/1745-6215-10-44.

Additional files

Editorial Notes