ISRCTN ISRCTN65987321
DOI https://doi.org/10.1186/ISRCTN65987321
ClinicalTrials.gov number NCT00589537
Secondary identifying numbers MRC TE24
Submission date
04/07/2007
Registration date
29/08/2007
Last edited
21/03/2022
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

https://www.cancerresearchuk.org/about-cancer/find-a-clinical-trial/a-trial-to-find-the-best-way-of-using-scans-to-monitor-men-after-treatment-for-seminoma-testicular-cancer

Study website

Contact information

Dr Dipa Noor
Scientific

MRC Clinical Trials Unit at UCL
Institute of Clinical Trials & Methodology
90 High Holborn 2nd Floor
London
WC1V 6LJ
United Kingdom

Phone +44 (0)20 7670-4747
Email mrcctu.trisst@ucl.ac.uk

Study information

Study designOpen randomised phase III multicentre trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeScreening
Scientific titleTrial of Imaging and Schedule in Seminoma Testis
Study acronymTRISST
Study hypothesisTo assess whether a reduced computed tomography (CT) schedule or magnetic resonance imaging (MRI) could be used as a safe and effective alternative to standard CT-based surveillance in the management of stage one seminoma testis patients without evidence of nonseminomatous germ cell tumour (NSGCT) elements.

As of 21/03/2012, the following amendments have been made to the record.
Australia, Canada and New Zealand have been removed from the countries of recruitment.
Anticipated end date has been modified from 01/11/2016 to 31/05/2020.
Ethics approval(s)Leeds (East) Research Ethics Committee, 26/10/2007, ref: 07/H1306/127
ConditionSeminoma testis
Intervention1. Standard surveillance: CT-based, scans at 6, 12, 18, 24, 36, 48 and 60 months
2. CT-based surveillance: reduced schedule: scans at 6, 18, and 36 months
3. MRI-based surveillance: scans at 6, 12, 18, 24, 36, 48 and 60 months
4. MRI-based surveillance: reduced schedule: scans at 6, 18, and 36 months
Intervention typeOther
Primary outcome measureProportion of patients relapsing with Royal Marsden Hospital (RMH) stage IIC or greater disease.

Primary and secondary outcome timepoint measurements will depend partly on recruitment and event rates. Recruitment will be for five years, and final analyses are expected to be nine years after the first patient is randomised. In addition, annual interim analyses will be performed with an independent data monitoring committee.
Secondary outcome measuresCurrent secondary outcome measure(s) as of 21/03/2012:
1. Mean abdominal mass size at relapse between CT and MRI
2. Time on surveillance before detection of relapse
3. First modality to detect relapse (patient symptom, clinical examination, tumour marker, chest X-ray [CXR], cross sectional image)
4. Extent of relapse according to International Germ Cell Cancer Collaborative Group (IGCCCG) classification (IGCCCG, 1997)
5. Disease free and overall survival according to schedule randomisation and prognostic grouping
6. Prospective evaluation of prognostic factors for relapse of stage I seminoma patients
7. Number of false positive MRIs
8. Resource use and costs

Primary and secondary outcome timepoint measurements will depend partly on recruitment and event rates. Recruitment will be for five years, and final analyses are expected to be nine years after the first patient is randomised. In addition, annual interim analyses will be performed with an independent data monitoring committee.

Previous secondary outcome measure(s):
1. Mean abdominal mass size at relapse between CT and MRI
2. Time on surveillance before detection of relapse
3. First modality to detect relapse (patient symptom, clinical examination, tumour marker, chest X-ray [CXR], cross sectional image)
4. Extent of relapse according to International Germ Cell Cancer Collaborative Group (IGCCCG) classification (IGCCCG, 1997)
5. Disease free and overall survival according to schedule randomisation and prognostic grouping
6. Prospective evaluation of prognostic factors for relapse of stage I seminoma patients

Primary and secondary outcome timepoint measurements will depend partly on recruitment and event rates. Recruitment will be for five years, and final analyses are expected to be nine years after the first patient is randomised. In addition, annual interim analyses will be performed with an independent data monitoring committee.
Overall study start date01/11/2007
Overall study end date29/09/2020

Eligibility

Participant type(s)Patient
Age groupAdult
SexMale
Target number of participants660
Total final enrolment669
Participant inclusion criteriaCurrent inclusion criteria as of 31/03/2011:
1. Histologically proven seminoma of the testis without evidence of NSGCT elements
2. Clinical stage I on the basis of clinical examination and CT scan of the chest, abdomen and pelvis. This CT scan should have been performed no more than 8 weeks before randomisation
3. No planned adjuvant therapy
4. Normal serum alphafetoprotein (AFP) post-orchidectomy and not known to be raised pre-orchidectomy
5. Normal serum beta-human chorionic gonadotropin (β-HCG) at randomisation (may have been raised pre-orchidectomy)
6. Patient written, informed consent
7. Patients must be able to attend for regular surveillance
8. The interval between orchidectomy and randomisation should not normally exceed 8 weeks (although up to 10 weeks is acceptable in exceptional circumstances following discussion with the trial team)
9. Patients must be at least 16 years old

Previous inclusion criteria:
1. Histologically proven seminoma of the testis without evidence of NSGCT elements
2. Clinical stage one on the basis of clinical examination and CT scan of the chest, abdomen and pelvis
3. No planned adjuvant therapy
4. Normal serum alphafetoprotein (AFP) pre-orchidectomy and at randomisation
5. Normal serum beta-human chorionic gonadotropin (β-HCG) at randomisation (may have been raised pre-orchidectomy)
6. Patient written, informed consent
7. Patient must be able to attend for regular surveillance
8. The interval between orchidectomy and registration should not exceed eight weeks
Participant exclusion criteriaCurrent exclusion criteria as of 31/03/2011:
1. Co-existent or previously treated malignancy within 10 years, with the only exceptions being (i) successfully treated non-melanoma skin cancer or, (ii) RMH stage I germ cell tumour of the contralateral testis diagnosed more than 5 years earlier and managed by surveillance
2. Inability for any reason to comply with the trial investigations or follow-up schedules
3. Any contra-indication to MRI, for example, ferrous metal implants of any type, cardiac pacemaker or defibrillators, or history of injury by metal fragments
4. Spermatocytic seminomas

Previous exclusion criteria:
1. Co-existent or previously treated malignancy within ten years other than successfully treated non-melanoma skin cancer
2. Inability for any reason to comply with the trial investigations or follow-up schedules
3. Any contra-indication to magnetic resonance imaging, for example ferrous metal implants of any type, cardiac pacemaker or defibrillators, or history of injury by metal fragments
Recruitment start date01/11/2007
Recruitment end date31/07/2014

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centres

Huddersfield Royal Infirmary
West Yorkshire
HD3 3EA
United Kingdom
35 other centres
-
United Kingdom

Sponsor information

Medical Research Council (UK)
Research council

2nd Floor David Phillips Building
Polaris House
North Star Avenue
Swindon
SN2 1FL
United Kingdom

Phone +44 (0)20 7670 4625
Email iv@centre-london.mrc.ac.uk
Website http://www.mrc.ac.uk
ROR logo "ROR" https://ror.org/03x94j517

Funders

Funder type

Charity

Cancer Research UK (CRUK) (UK) (ref: C17084/A8690)
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 date01/10/2021
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planResults from the primary analysis and pre-specified secondary analyses will be presented at relevant national/international meetings and will be published in peer-reviewed journals following funder open access requirements. A plain English summary of the results will be distributed to participants and will also be published on the study and funder websites.
IPD sharing planThe trial data are held at MRC Clinical Trials Unit at UCL which encourages optimal use of data by employing a controlled access approach to data sharing. Requests for data can be made via application to the Trial Steering Committee. Further information on both the approach and the application process can be found here: http://www.ctu.mrc.ac.uk/our_research/datasharing/

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Plain English results No Yes
Other publications management practices 01/02/2012 Yes No
Results article 17/03/2022 21/03/2022 Yes No

Editorial Notes

21/03/2022: Publication reference added.
15/07/2021: The following changes have been made:
1. The trial contact has been updated.
2. The publication and dissemination plan has been added.
3. The intention to publish date has been added.
25/06/2021: The following changes have been made:
1. The plain English summary link has been updated.
2. The overall trial end date has been changed from 31/05/2020 to 29/09/2020.
3. The total final enrolment number has been added.
26/05/2021: Cancer Research UK lay results summary link added to Results (plain English).