Radiotherapy and Androgen Deprivation In Combination After Local Surgery

ISRCTN ISRCTN40814031
DOI https://doi.org/10.1186/ISRCTN40814031
EudraCT/CTIS number 2006-000205-34
ClinicalTrials.gov number NCT00541047
Secondary identifying numbers PR10
Submission date
28/06/2006
Registration date
31/10/2006
Last edited
20/05/2024
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

http://www.cancerhelp.org.uk/trials/a-trial-looking-at-radiotherapy-and-hormone-therapy-after-surgery-for-prostate-cancer

Study website

Contact information

Dr Rosalind Wright
Scientific

Academic Urology Unit
Institute of Cancer Research and Royal Marsden Hospital
Downs Road
Sutton
London
SM2 5PT
United Kingdom

Phone +44 (0)20 8661 3425
Email rosalind.wright@icr.ac.uk

Study information

Study designRandomized controlled trial with two separate randomisations
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Patient information can be found at: http://www.radicals-trial.org/information_for_patients/patient_information_sheets.aspx
Scientific titleRadiotherapy and Androgen Deprivation In Combination After Local Surgery
Study acronymRADICALS
Study objectivesRADICALS will test whether giving radiotherapy routinely, within a few months after surgery, rather than waiting for the Prostate-Specific Antigen (PSA) to rise, will reduce the proportion of men who die from prostate cancer. RADICALS will also test whether men receiving radiotherapy after surgery also benefit from the addition of androgen deprivation.
Ethics approval(s)Royal Free Hospital and Medical School Research Ethics Committee, 18/04/2007, ref: 07/Q0501/48
Health condition(s) or problem(s) studiedProstate cancer
InterventionCurrent interventions as of 15/09/2014:
Radiotherapy timing randomisation:
Arm 1A: adjuvant radiotherapy (RT) to prostate bed
Arm 1B: observation policy with early salvage RT to prostate bed given in the event of biochemical failure

Hormone therapy duration randomisation:
Arm 2A: no hormone therapy with radiotherapy
Arm 2B: short-term hormone therapy (6 months) commencing approximately 2 months prior to radiotherapy
Arm 2C: long-term hormone therapy (24 months) commencing approximately 2 months prior to radiotherapy

Previous interventions:
Radiotherapy timing randomisation:
Arm 1A: adjuvant radiotherapy (RT) to prostate bed
Arm 1B: observation policy with early salvage RT to prostate bed given in the event of biochemical failure

Hormone therapy duration randomisation:
Arm 2A: no hormone therapy with radiotherapy
Arm 2B: short-term hormone therapy (4 months) commencing approximately 2 months prior to radiotherapy
Arm 2C: long-term hormone therapy (24 months) commencing approximately 2 months prior to radiotherapy

The previous sponsor for this trial (up to 15/09/2014) was:
Medical Research Council Clinical Trials Unit (UK)
Ian Viney
MRC Centre London
Stephenson House
158-160 North Gower Street
London
NW1 2DA
United Kingdom
Intervention typeOther
Primary outcome measureDisease-specific survival (i.e., death due to prostate cancer)
Secondary outcome measures1. Freedom from treatment failure
2. Clinical progression-free survival
3. Overall survival
4. Non-protocol androgen deprivation
5. Quality of life
6. Treatment toxicity
Overall study start date01/09/2006
Completion date28/07/2022

Eligibility

Participant type(s)Patient
Age groupNot Specified
SexMale
Target number of participantsApproximately 4000 (to be confirmed, as this depends on actual recruitment)
Total final enrolment4236
Key inclusion criteriaPatient has undergone radical prostatectomy
Key exclusion criteria1. Androgen deprivation prior to radical prostatectomy
2. Bilateral orchidectomy
3. Prior pelvic radiotherapy
4. Other active malignancy likely to interefere with protocol treatment or follow-up
5. Known distant metastases from prostate cancer
Date of first enrolment01/09/2006
Date of final enrolment01/06/2015

Locations

Countries of recruitment

  • Canada
  • Denmark
  • England
  • Ireland
  • United Kingdom

Study participating centre

Academic Urology Unit
London
SM2 5PT
United Kingdom

Sponsor information

MRC Clinical Trials Unit at UCL
University/education

Institute of Clinical Trials & Methodology
90 High Holborn
2nd Floor
London
WC1V 6LJ
England
United Kingdom

Phone +44 (0)20 7670 4651
Email mrcctu.radicals@ucl.ac.uk
Website https://www.mrcctu.ucl.ac.uk/

Funders

Funder type

Charity

Cancer Research UK (CRUK) (UK), ref: C7829/A6381
Private sector organisation / Other non-profit organizations
Alternative name(s)
CR_UK, Cancer Research UK - London, CRUK
Location
United Kingdom

Results and Publications

Intention to publish date30/09/2022
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planCurrent publication and dissemination plan as of 22/05/2020:
RADICALS-RT comparison: biochemical progression-free survival (early/secondary outcome) – 2020
RADICALS-RT comparison: freedom from distant metastases (primary outcome) – mid 2022
RADICALS-HD comparison: metastases-free survival (new primary outcome) – mid 2022

Previous publication and dissemination plan:
RADICALS-RT comparison: biochemical progression-free survival (early/secondary outcome) – late 2019
RADICALS-RT comparison: freedom from distant metastases (primary outcome) – mid 2022
RADICALS-HD comparison: metastases-free survival (new primary outcome) – mid 2022
IPD sharing planPlease see the unit Data Sharing Policy (https://www.ctu.mrc.ac.uk/our-research/other-research-policy/data-sharing/) and recent paper (https://trialsjournal.biomedcentral.com/articles/10.1186/s13063-015-0604-6) regarding the rationale for a controlled access approach.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article protocol 01/04/2007 Yes No
Abstract results RADICALS-HD 12/09/2022 08/12/2022 No No
Other publications 28/09/2020 08/12/2022 Yes No
Other publications RADICALS-HD 06/07/2022 08/12/2022 Yes No
Results article RADICALS-RT 31/10/2020 08/12/2022 Yes No
Statistical Analysis Plan RADICALS-HD and RADICALS-RT 27/05/2022 08/12/2022 No No
Results article RADICALS-HD 16/05/2024 20/05/2024 Yes No
Results article RADICALS-HD 16/05/2024 20/05/2024 Yes No

Editorial Notes

20/05/2024: Publication references added.
08/12/2022: The following changes were made to the trial record:
1. Publication references and total final enrolment added
2. Sponsor details updated.
3. The overall trial end date was changed from 30/09/2022 to 28/07/2022.
22/05/2020: The following changes have been made:
1. The overall trial end date has been changed from 01/06/2015 to 30/09/2022.
2. The intention to publish date has been changed from 31/12/2019 to 30/09/2022.
3. The publication and dissemination plan has been updated.
01/07/2019: Publication and dissemination plan and IPD sharing statement added.
14/06/2019: No publications found. Verifying results with principal investigator.
18/10/2018: No publications found, verifying study status with principal investigator.
15/09/2014: The following changes were made to the trial record:
1. Canada, Denmark and Ireland were added to the countries of recruitment
2. The anticipated end date was changed from 31/05/2013 to 01/06/2015
15/02/2011: The anticipated end date was changed from 01/04/2012 to 31/05/2013.