UK PREvention of Cancer by Intervention with SElenium

ISRCTN ISRCTN25193534
DOI https://doi.org/10.1186/ISRCTN25193534
ClinicalTrials.gov number NCT00022165
Secondary identifying numbers N/A
Submission date
18/05/2001
Registration date
18/05/2001
Last edited
02/02/2012
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Prof Margaret Rayman
Scientific

Faculty of Health and Medical Sciences
University of Surrey
Guildford
GU2 5XH
United Kingdom

Phone +44 (0)1483 686447
Email M.Rayman@surrey.ac.uk

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)GP practice
Study typePrevention
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleUK PREvention of Cancer by Intervention with SElenium: a pilot randomised controlled feasibility study
Study acronymUK PRECISE Pilot Study
Study objectivesThe PRECISE trial aims to show not only whether selenium has a protective effect against cancer, but also how much selenium is needed to have this effect and which people will benefit most.

Added as of 27/03/2009: Please note that the main trial never started due to lack of funding. The pilot study was successfully completed, and the pilot trial information was added to this record on 12/07/2010. All changes can be found below in the relevant section with the above update date.
Ethics approval(s)Added 13/07/2010:
1. South Tees Research Ethics Committee approved on the 1st February 2000 (ref: 99/69)
2. Worcestershire Health Authority Local Research Ethics Committee approved on the 17th March 2000 (ref: LREC 74/99)
3. Norwich District Research Ethics Committee approved on the 9th December 1999 (ref: LREC 99/141)
4. Great Yarmouth and Waveney LREC approved on the 22nd February 2000 (under reciprocal arrangements with Norwich District LREC)
Health condition(s) or problem(s) studiedMultiple cancer sites
InterventionCurrent information as of 12/07/2010:
Participants receive either a 100 µg, 200 µg, 300 µg selenium as selenium-enriched yeast supplement or a placebo yeast supplement every day for six months. Follow-up was for a minimum of six months (we had hoped this pilot would lead into the main trial phase).

Previous information at time of registration:
Participants receive either a 100 µg, 200 µg, 300 µg selenium supplement or a placebo every day.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)Selenium
Primary outcome measureAdded 12/07/2010:
This was a feasibility study to show the ability to run the main trial.
Secondary outcome measuresAdded 12/07/2010:
1. Mood (Profile of Mood States Bi-Polar Form [POMS-BI]), measured at baseline and 6 months
2. Quality of life (36-item Short Form Health Survey [SF-36]), measured at baseline and 6 months
3. Thyroid function (thyroid stimulating hormone [TSH], total and free T4 and T3), measured at baseline and six months
Overall study start date01/01/2000
Completion date31/12/2002

Eligibility

Participant type(s)Patient
Age groupSenior
SexBoth
Target number of participants14500 in total (500 for pilot arm - added 12/07/2010)
Key inclusion criteriaVolunteers aged 60 - 74 years old, either sex
Key exclusion criteriaAdded 12/07/2010:
1. Southwest Oncology Group (SWOG) grading scale performance status score greater than 1 or equivalent
2. Active liver or kidney disease (known abnormal liver or kidney function)
3. Prior diagnosis of cancer (excluding non-melanoma skin cancer)
4. Diagnosed human immunodeficiency virus (HIV) infection
5. Diminished mental capacity (subjects must be able to give informed consent to participate as defined by ethics committees)
6. Taking 50 µg/day or more of selenium supplements
Date of first enrolment01/01/2000
Date of final enrolment31/12/2002

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Faculty of Health and Medical Sciences
Guildford
GU2 5XH
United Kingdom

Sponsor information

Cancer Research UK (CRUK) (UK)
Charity

PO Box 123
61 Lincoln's Inn Fields
London
WC2A 3PX
United Kingdom

Website http://www.cancerresearchuk.org/
ROR logo "ROR" https://ror.org/054225q67

Funders

Funder type

Charity

Cancer Research Campaign (UK) - funded a pilot trial for this study, completed in 2002

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article selenium supplementation, mood and quality of life results 15/01/2006 Yes No
Results article selenium supplementation and thyroid function results 01/02/2008 Yes No
Other publications supplementation with selenium does not affect total homocysteine concentration in the UK elderly population: 01/11/2008 Yes No
Results article high-selenium yeast on plasma lipids results 17/05/2011 Yes No