Effect of Sulforaphane on prostate CAncer PrEvention (ESCAPE)

ISRCTN ISRCTN40496794
DOI https://doi.org/10.1186/ISRCTN40496794
ClinicalTrials.gov number NCT01950143
Secondary identifying numbers 14482
Submission date
11/10/2013
Registration date
11/10/2013
Last edited
22/06/2021
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

http://www.cancerresearchuk.org/cancer-help/trials/a-trial-looking-effect-sulforaphane-prostate-cancer-escape

Contact information

Dr Antonietta Melchini
Scientific

Quadram Institute Bioscience
Norwich Research Park
Colney
NR4 7UA
United Kingdom

ORCiD logoORCID ID 0000-0001-5256-2724
Phone +44 1603 255030
Email antonietta.melchini@ifr.ac.uk

Study information

Study designRandomised interventional trial ; Design type: Prevention, Treatment
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titleA human dietary intervention study to investigate the effect of sulforaphane on prostate cancer interception
Study acronymESCAPE
Study hypothesisThe biology of prostate cancer is associated with changes in genes and metabolites within prostate tissue. There is robust evidence to suggest that isothiocyanates (ITCs), compounds found in broccoli and other cruciferous vegetables, can affect the development of prostate cancer by influencing these changes.

We propose to undertake a dietary intervention study on a group of men with early prostate cancer on active surveillance in order to investigate changes in genes and other measurable compounds in prostate, blood and urine that would reflect the activity of prostate disease. Volunteers recruited onto this study will be randomly allocated to one of three dietary groups in which they will be required to consume two portions of broccoli soup per week, delivering a different concentration of sulforaphane (SF) as part of their normal diet for one year. SF is one of most abundant ITCs found in broccoli and has been proven to have many health promoting properties.

Blood, urine and prostate biopsy tissue will be obtained before and after a 12 month intervention period. Prostate biopsies will be obtained either though transperineal template biopsies, a technique accepted as best clinical practice because it provides better sampling of the prostate or we will use transrectal ultrasound guided biopsy which is currently the standard of care for obtaining biopsies in the NHS.

This study builds upon and extends a successful pilot study of similar design undertaken between 2006 and 2008 (REC Ref: 05/Q0101/9). The proposed study has a similar experimental design but with some important differences to enable acquisition of further information regarding diet and prostate biology.

This study will be funded by Biotechnology and Biological Sciences Research Council (BBSRC) and Prostate Cancer foundation (PCF).
Ethics approval(s)REC NRES Committee East of England-Cambridge South, 25/06/2013, ref: 13/EE/0110
ConditionTopic: National Cancer Research Network; Subtopic: Prostate Cancer; Disease: Prostate
InterventionCurrent interventions as of 03/05/2017:
ESCAPE is a double-blind, randomised 12 month dietary intervention trial on men with early prostate cancer on active surveillance. The study takes place at the Human Nutrition Unit (HNU) of the Institute of Food Research (IFR) and at the urology clinic at the Norfolk and Norwich University Hospital (NNUH). Participants are asked to attend one visit at the HNU for a talk and three or four visits to the NNUH depending on the technique of prostate biopsy. Participants are randomly allocated to one of three dietary groups in which they will be required to consume one portion of broccoli soup per week, delivering a different concentration of the dietary bioactive sulforaphane (SF) as part of their normal diet for one year. SF is one of most abundant sulfur compound found in broccoli and has been proven to have many health promoting properties. Blood, urine and prostate biopsy tissue will be obtained before and after a 12 month intervention period. Prostate biopsies are obtained either though transperineal template biopsies, a technique accepted as best clinical practice because it provides better sampling of the prostate or using transrectal ultrasound guided biopsy which is currently the standard of care for obtaining biopsies in the NHS.

Previous interventions:
Broccoli soups, Volunteers recruited into this study will be randomly placed in one of three dietary groups in which they will be required to consume two portions of broccoli soup per week, delivering a different level of glucoraphanin (SF precursor), as part of their normal diet for one year.
The three types of soup will contain:
1. standard broccoli
2. glucoraphanin-enriched broccoli (Beneforte®) (
3. Beneforte extra
Beneforte and Beneforte extra broccoli are especially cultivated to deliver high SF.

Study Entry : Single Randomisation only
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Sulforaphane
Primary outcome measureCurrent primary outcome measures as of 03/05/2017:
Global gene expression is measured using prostate tissue samples at baseline and 12 months.

Previous primary outcome measures:
Global gene expression; Timepoints: 12 months post intervention
Secondary outcome measuresCurrent secondary outcome measures as of 03/05/2017:
Metabolite concentration is measured using prostate tissue samples at baseline and 12 months.

Previous secondary outcome measures:
Metabolite concentration; Timepoints: 12 months after intervention
Overall study start date31/01/2013
Overall study end date31/10/2017

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit80 Years
SexMale
Target number of participantsUK Sample Size: 100
Total final enrolment49
Participant inclusion criteria1. Males
2. Diagnosed with low and intermediate prostate cancer on active surveillance
3. Aged 18-80 years
4. Body mass index (BMI) between 19.5 and 35 kg/m2
5. Smokers and non-smokers
Participant exclusion criteria1. Those undergoing chemopreventive therapy
2. Those regularly taking 5a-reductase inhibitors or testosterone replacement medicines
3. Those on warfarin treatment
4. Those diagnosed with diabetes
5. Those diagnosed with or suspected to be high-risk for HIV and/or hepatitis
6. Those allergic to any of the ingredients of the broccoli soups
7. Those taking dietary supplements or herbal remedies which may affect the study outcome unless the volunteer is willing to discontinue taking them for 1 month prior to starting study. Please note that some supplements may not affect the study and this will be assessed on an individual basis
8. Parallel participation in another research project which involves dietary intervention
9. Any person related to or living with any member of the study team
Recruitment start date29/07/2013
Recruitment end date31/10/2016

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Norfolk and Norwich University Hospital
Colney Lane
Norwich
Colney
NR4 7UA
United Kingdom

Sponsor information

Quadram Institute Bioscience
Research organisation

Dr Linda Harvey
Norwich Research Park
Colney Lane
Colney
NR4 7UA
United Kingdom

Website www.quadram.ac.uk
ROR logo "ROR" https://ror.org/04td3ys19

Funders

Funder type

Charity

Prostate Cancer Foundation (UK)
Government organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
CaP CURE, PCF
Location
United States of America
Biotechnology and Biological Sciences Research Council (BBSRC) (UK)
Government organisation / National government
Alternative name(s)
UKRI - Biotechnology And Biological Sciences Research Council, BBSRC UK, BBSRC
Location
United Kingdom

Results and Publications

Intention to publish date31/10/2018
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planPlanned publication in a high-impact peer reviewed journal.
IPD sharing planThe current data sharing plans for the current study are unknown and will be made available at a later date

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 01/04/2019 13/08/2019 Yes No
Plain English results 22/06/2021 No Yes
HRA research summary 28/06/2023 No No

Editorial Notes

22/06/2021: Cancer Research UK lay results summary link added to Results (plain English).
13/08/2019: ClinicalTrials.gov number, publication reference and total final enrolment number added.
03/05/2017: Overall trial dates changed from 01/08/2013 - 02/02/2015 to 31/01/2013 - 31/10/2017. Recruitment dates changed from 01/08/2013 - 02/02/2015 to 29/07/2013 - 31/10/2016. Added sponsor information, trial participating site, publication and dissemination plan, intention to publish date, and IPD sharing plan. Updated interventions and outcome measures. Sponsor's changed from Institute of Food Research (UK) to Quadram Institute Bioscience, updated the sponsor information.
16/02/2017: No publications found in PubMed, verifying study status with principal investigator.