ISRCTN ISRCTN59368779
DOI https://doi.org/10.1186/ISRCTN59368779
ClinicalTrials.gov (NCT) NCT00005588
Protocol serial number G9600656
Sponsor Institute of Cancer Research (UK)
Funders Department of Health, Medical Research Council (UK), Cancer Research UK
Submission date
06/04/2000
Registration date
06/04/2000
Last edited
25/10/2022
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 of protocol

Not provided at time of registration

Contact information

Prof John Yarnold
Scientific

Department of Radiotherapy
Royal Marsden Hospital
The Institute of Cancer Research
Downs Road
Sutton
SM2 5PT
United Kingdom

Study information

Primary study designInterventional
Study designRandomised controlled trial
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titleStandardisation of breast radiotherapy (START) trial
Study acronymSTART
Study objectivesTo test the effects of radiotherapy schedules using fraction sizes larger than 2.0 Gy in terms of normal tissue responses, loco-regional tumour control, quality of life and economic consequences in women prescribed postoperative radiotherapy for early breast cancer.
Ethics approval(s)Added 30 July 2008: South East London (MREC 98/96) - approved 30/09/1998
Health condition(s) or problem(s) studiedBreast cancer
InterventionRadiotherapy schedules using fraction sizes larger than 2.0 Gy
Intervention typeOther
Primary outcome measure(s)

In this study several endpoints are being investigated (tumour recurrence, normal tissue effect, quality of life). It is intended that each will be analysed separately. If there is discordance between the endpoints in terms of treatment outcome this will allow discussion of clinical trade-offs. In a subset of patients there will be a detailed assessment of quality of life. Health economic consequences will also be determined.

Key secondary outcome measure(s)

Not provided at time of registration

Completion date24/10/2002

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexFemale
Target sample size at registration4451
Total final enrolment4451
Key inclusion criteria1. Patients must be 18 years and above, have operable unilateral breast cancer (T1-3, NO-1, MO at presentation)
2. There must be histological confirmation of invasive carcinoma and complete macroscopic excision of tumour by breast conserving surgery or mastectomy
3. The patient must consent to be part of the study and be available for follow-up
Key exclusion criteriaPatients requiring axillary radiotherapy after greater than a level 1 axillary dissection or after greater than 10 lymph nodes have been removed
Date of first enrolment01/01/1999
Date of final enrolment24/10/2002

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

Department of Radiotherapy
Sutton
SM2 5PT
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summary
IPD sharing planNot provided at time of registration

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article March results on 'Trial A' 29/03/2008 Yes No
Results article April results on 'Trial B' 01/04/2008 Yes No
Results article results 01/03/2010 Yes No
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes
Plain English results START A 28/10/2021 No Yes
Plain English results START B 25/10/2022 No Yes
Study website Study website 11/11/2025 11/11/2025 No Yes

Editorial Notes

25/10/2022: Cancer Research UK plain English results link and total final enrolment added.
28/10/2021: Cancer Research UK plain English results link added.