A study examining whether a new radiotherapy technique (“dysphagia optimised intensity modulated radiotherapy”) will improve swallowing function after treatment in head and neck cancer patients

ISRCTN ISRCTN25458988
DOI https://doi.org/10.1186/ISRCTN25458988
Secondary identifying numbers 19934
Submission date
23/12/2015
Registration date
23/12/2015
Last edited
06/09/2024
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

https://www.cancerresearchuk.org/about-cancer/find-a-clinical-trial/a-study-looking-at-whether-changing-dose-radiotherapy-improves-swallowing-people-head-neck-cancer-dars

Study website

Contact information

Mr Mark Sydenham
Scientific

DARS Trial Manager
ICR-Clinical Trials and Statistics Unit
Division of Clinical Studies
Institute of Cancer Research
Cotswold Road
Sutton
SM2 4NG
United Kingdom

Phone +44 (0)208 722 4104
Email DARS-icrctsu@icr.ac.uk
Mr Mark Sydenham
Public

DARS Trial Manager
ICR-Clinical Trials and Statistics Unit
Division of Clinical Studies
Institute of Cancer Research
Cotswold Road
Sutton
SM2 4NG
United Kingdom

Phone +44 (0)208 722 4104
Email DARS-icrctsu@icr.ac.uk

Study information

Study designParallel group phase III multi-centre randomized controlled trial
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet
Scientific titleA phase III randomised multicentre study of dysphagia optimised intensity modulated radiotherapy (Do-IMRT) versus standard intensity modulated radiotherapy (S-IMRT) in head and neck cancer
Study acronymDARS
Study objectivesThe aim of this study is to investigate whether dysphagia optimised intensity modulated radiotherapy (Do-IMRT) compared to standard IMRT (S-IMRT) improves post radiotherapy swallowing difficulties in patients with head and neck cancer.
Ethics approval(s)First MREC, 16/11/2015, ref: 15/LO/1464
Health condition(s) or problem(s) studiedTopic: Cancer; Subtopic: Head and Neck Cancer; Disease: Head and Neck
InterventionParticipants are randomly allocated to one of two groups:

Group 1: Participants receive dysphagia optimised intensity modulated radiotherapy (Do-IMRT)
Group 2: Participants receive standard intensity modulated radiotherapy (S-IMRT)

Radiotherapy doses will be the same in both groups; however, in Do-IMRT patients, the irradiation of the pharyngeal muscles will be reduced by delivering inverse planned IMRT identifying these as organs at risk. Patients in both treatment groups will receive 65 Gy in 30 fractions (2.167 Gy per fraction) to primary and nodal tumour (PTV_6500) and 54 Gy in 30 fractions (1.8 Gy per fraction) to remaining pharyngeal subsites and nodal areas at risk of harbouring microscopic disease (PTV_5400).

Unless contraindicated, patients will receive concomitant chemotherapy. Participants will be followed up after radiotherapy treatment at regular intervals for 24 months, and then annually for up to 5 years.
Intervention typeOther
Primary outcome measureSwallowing function, measured using the MD Anderson Dysphagia Inventory (MDADI) composite score at 12 months after treatment completion
Secondary outcome measures1. Longitudinal pattern of patient-reported swallowing function, assessed by using the MDADI at baseline, 3, 6, 12, 18 and 24 months post treatment
2. Diet and eating habits, assessed by using the Performance Status Scale for Head and Neck Cancer (PSS-HN) at baseline, 3, 6, 12, 18 and 24 months post treatment
3. Swallowing function, assessed using the 100mL water swallow test and videofluoroscopic examination at baseline, 3, 6, 12, 18 and 24 months post treatment
4. Acute and late toxicity and use of feeding tube, assessed at baseline, weekly during radiotherapy at 1, 2, 3, 4 and 8 weeks post radiotherapy and then at 3, 6, 12, 18 and 24 months post treatment
5. Cancer-related outcomes, including resection rates, location and timing of loco-regional tumour recurrence and overall survival, assessed at follow-up visits 3, 6, 12, 18 and 24 months post treatment and then annually until 5 years post treatment
Overall study start date18/12/2013
Completion date31/07/2023

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participantsPlanned Sample Size: 102; UK Sample Size: 102
Total final enrolment112
Key inclusion criteriaCurrent inclusion criteria as of 29/08/2017:
1. Aged 18 years or above
2. Any patient undergoing radiotherapy for head and neck cancer in the oropharynx or hypopharynx. Patients with tumour at other sites (*1) where the radical radiotherapy dose is to be delivered to the pharyngeal constrictors may also be eligible
3. Stage T1-4, N0-3, M0 disease; this will be mostly histologically confirmed squamous cell carcinoma (SCC) but other histological types (*1) may be eligible
4. Radiotherapy with concomitant chemotherapy (unless conta -indicated) is the planned treatment
5. WHO performance status 0 or 1
6. Must be available to attend long term follow up
7. Adequate cognitive ability to complete the MDADI, UWQoL and PSSHN assessments
8. Written informed consent

*1 Sites are requested to confirm eligibility with ICR-CTSU prior to registration.

Previous inclusion criteria:
1. Aged 18 years or above
2. Any patient undergoing radiotherapy for head and neck cancer in the oropharynx or hypopharynx. Patients with tumour at other sites (*1) where the radical radiotherapy dose is to be delivered to the pharyngeal constrictors may also be eligible
3. Stage T1-4, N0-3, M0 disease; this will be mostly histologically confirmed squamous cell carcinoma (SCC) but other histological types (*2) may be eligible
4. Radiotherapy with concomitant chemotherapy (unless conta -indicated) is the planned treatment
5. Creatinine clearance (=50mL/min prior to starting chemotherapy) (*2)
6. WHO performance status 0 or 1
7. Must be available to attend long term follow up
8. Adequate cognitive ability to complete the MDADI, UWQoL and PSSHN assessments
9. Written informed consent

*1 Sites are requested to confirm eligibility with ICRCTSU prior to registration
*2 Not applicable for patients receiving radiotherapy only
Key exclusion criteriaCurrent exclusion criteria as of 29/08/2017:
1. Documented evidence of pre-existing swallowing dysfunction (not related to head and neck cancer)
2. Previous radiotherapy to the head and neck region
3. Posterior pharyngeal wall, post cricoid or retropharyngeal lymph node involvement
4. Lateralised tumours, requiring unilateral neck irradiation
5. Major head and neck surgery (excluding biopsies/tonsillectomy)
6. Current/previous tracheostomy placement
7. Previous or concurrent illness, which in the investigator’s opinion would interfere with completion of therapy, trial assessments or follow up
8. Any invasive malignancy within previous 2 years (other than non melanomatous skin carcinoma or cervical carcinoma)

Previous exclusion criteria:
1. Documented evidence of pre-existing swallowing dysfunction (not related to head and neck cancer)
2. Previous radiotherapy to the head and neck region
3. Posterior pharyngeal wall, post cricoid and retropharyngeal lymph node involvement
4. Major head and neck surgery (excluding biopsies/tonsillectomy/neck dissection)
5. Current/previous tracheostomy placement
6. Previous or concurrent illness, which in the investigator’s opinion would interfere with completion of therapy, trial assessments or follow up
7. Any invasive malignancy within previous 2 years (other than non melanomatous skin carcinoma or cervical carcinoma)
Date of first enrolment20/05/2016
Date of final enrolment27/04/2018

Locations

Countries of recruitment

  • England
  • Ireland
  • Northern Ireland
  • Scotland
  • Syria
  • United Kingdom
  • Wales

Study participating centres

Royal Marsden Hospital, Chelsea
Fulham Road
London
SW3 6JJ
United Kingdom
Royal Marsden Hospital, Sutton
Downs Road
Sutton
SM2 5PT
United Kingdom
Belfast City Centre Hospital
Lisburn Road
Belfast
BT9 7AB
United Kingdom
Bristol Haematology and Oncology Centre
Horfield Road
Bristol
BS2 8ED
United Kingdom
Guy’s and St Thomas’ Hospital
Westminster Bridge Road
London
SE1 7EH
United Kingdom
Weston Park Hospital
Whitham Road
Sheffield
S5 7AU
United Kingdom
The Churchill Hospital, Oxford
Old Road
Headington
Oxford
Oxford
OX3 7LE
United Kingdom
Royal Shrewsbury Hospital
Mytton Oak Road
Shrewsbury
SY3 8XQ
United Kingdom
Worcester Royal Hospital
Charles Hastings Way
Worcester
WR5 1DD
Syria
Norfolk & Norwich University Hospital
Colney Lane
Norwich
NR4 7UY
United Kingdom
Cheltenham General Hospital
Sandford Road
Cheltenham
GL53 7AN
United Kingdom
Gloucestershire Royal Hospital
Great Western Road
Gloucester
GL1 3NN
United Kingdom
Royal United Hospitals Bath
Combe Park
Avon
BA1 3NG
United Kingdom
Velindre Cancer Centre
Velindre Road
Cardiff
CF14 2TL
United Kingdom
Royal Devon & Exeter Hospital
Barrack Road
Exeter
EX2 5DW
United Kingdom
Nottingham University Hospital
Derby Road
Nottingham
NG7 2UH
United Kingdom
Western General Hospital
Crewe Road S
Edinburgh
EH4 2XU
United Kingdom
University Hospital Southampton
Tremona Road
Southampton
SO16 6YD
United Kingdom
Derriford Hospital, Plymouth
Derriford Road
Crownhill
Plymouth
PL6 8DH
United Kingdom
Beatson West of Scotland Cancer Centre,
1053 Great Western Road
Glasgow
G12 0YN
United Kingdom
Riagmore Hospital
Old Perth Road
Inverness
IV2 3UJ
United Kingdom
Torbay Hospital
Lowes Bridge
Torquay
TQ2 7AA
United Kingdom
St Luke’s Hospital
St Luke’s Radiation Oncology Network
Dublin
-
Ireland

Sponsor information

Royal Marsden NHS Foundation Trust
Hospital/treatment centre

Fulham Road
London
London
SW3 6JJ
England
United Kingdom

Website http://www.royalmarsden.nhs.uk/pages/home.aspx
ROR logo "ROR" https://ror.org/0008wzh48
Cancer Trials Ireland
Research organisation

Innovation House
Old Finglas Road
Dublin
-
Ireland

Funders

Funder type

Charity

Cancer Research UK
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 date31/12/2021
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planPlanned publication of trial results in a peer-reviewed journal.
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article protocol 06/10/2016 Yes No
Abstract results results presented at ASCO 20/05/2020 No No
HRA research summary 28/06/2023 No No
Results article 06/07/2023 10/07/2023 Yes No
Plain English results 06/09/2024 No Yes

Editorial Notes

06/09/2024: Cancer Research UK plain English results link added.
10/07/2023: Publication reference added.
04/05/2021: The previous scientific contact has been deleted and a new public and scientific contact added.
17/07/2020: The following changes have been made:
1. Publication reference added.
2. The final enrolment number has been added from the reference.
01/05/2018: The recruitment end date has been changed from 31/05/2018 to 27/04/2018.
06/02/2018: Cancer Trials Ireland has been added as the sponsor for the Republic of Ireland only.
01/02/2018: The following sites have been added: University Hospital Southampton, Derriford Hospital, Plymouth, Beatson West of Scotland Cancer Centre, Glasgow, Riagmore Hospital, Inverness, Torbay Hospital and St Luke's Hospital, St Luke’s Radiation Oncology Network, Dublin. A minor correction in the inclusion criteria has been made and the statement "*2 Not applicable for patients receiving radiotherapy only" has been removed.
29/08/2017: Overall trial end date has been changed from 21/02/2021 to 03/07/2023. Recruitment start date has been updated from 04/01/2016 to 20/05/2016. Recruitment end date has been updated from 21/02/2018 to 31/05/2018. Queen Elizabeth Hospital Birmingham has been removed as a trial participating centre. The follow have been added as trial participating centres: The Churchill Hospital, Oxford, Royal Shrewsbury Hospital, Worcester Royal Hospital, Norfolk & Norwich University Hospital, Cheltenham General Hospital, Gloucestershire Royal Hospital, Royal United Hospitals Bath, Velindre Cancer Centre, Royal Devon & Exeter Hospital, Nottingham University Hospital, Western General Hospital, Edinburgh. The sponsor address has been corrected.
10/10/2016: Publication reference added.
24/08/2016: Cancer Help UK lay summary link added.