ISAAC: a randomised trial for patients with asymptomatic advanced colorectal cancer to look at the benefits of undergoing surgical removal of their primary tumour before receiving chemotherapy for metastatic disease

ISRCTN ISRCTN10963271
DOI https://doi.org/10.1186/ISRCTN10963271
EudraCT/CTIS number 2008-005911-16
ClinicalTrials.gov number NCT01086618
Secondary identifying numbers UCL08/0079
Submission date
31/10/2008
Registration date
21/11/2008
Last edited
19/03/2020
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

http://www.cancerhelp.org.uk/trials/a-trial-surgery-chemotherapy-advanced-bowel-cancer-isaac

Contact information

Mr Austin Obichere
Scientific

Department of Surgery
University College London Hospital
235 Euston Road
London
W1P 8BT
United Kingdom

Study information

Study designMulticentre phase II randomised controlled trial
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 titleISAAC: a randomised trial of Initial Surgery in Advanced Asymptomatic Colorectal cancer patients receiving chemotherapy for metastatic disease
Study acronymISAAC
Study hypothesisThe ISAAC trial aims to investigate whether survival is improved by resection of the asymptomatic primary tumour prior to chemotherapy compared to chemotherapy alone in patients with advanced colorectal cancer.
Ethics approval(s)South East Research Ethics Committee, 15/07/2009, ref: 09/H1102/60
ConditionColorectal cancer
Intervention1. Resection of the asymptomatic primary tumour prior to chemotherapy
2. Chemotherapy alone

There is no prescribed treatment in this trial. The chemotherapy regimen is at the discretion of each treating clinician who may choose the standard treatment for that hospital or the patient can be entered into a chemotherapy treatment trial. The surgical treatment is at the discretion of the treating surgeon.
Intervention typeMixed
Primary outcome measureOverall survival
Patients will be followed up every 3 months until death for survival and adverse events related to surgery or chemotherapy.
Secondary outcome measures1. Morbidity of chemotherapy and surgery
2. Quality of life, assessed at 3 months and 6 months only
3. Economic evaluation
Patients will be followed up every 3 months until death for survival and adverse events related to surgery or chemotherapy.
Overall study start date01/06/2009
Overall study end date31/07/2013

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants500
Participant inclusion criteria1. Histologically or cytologically proven colorectal cancer
2. Metastases which are unresectable at presentation in the opinion of the appropriate multi-disciplinary team (MDT)
3. Primary tumour that in the MDT's opinion does not require immediate or emergency surgery or intervention
4. Patients who are referred for prophylactic colonic stents are eligible
5. Patient considered fit for systemic chemotherapy and surgery as determined by the local colorectal cancer MDT
6. Adequate full blood count (haemoglobin [Hb] greater than 10.0 g/dl; white blood cell count [WBC] greater than 3.0 x 10^9/L; platelets [Plts] greater than 100 x 10^9/L)
7. Adequate renal biochemistry: calculated glomerular filtration rate (GFR) greater than 50 ml/min using the Wright formula or measured by ethylenediaminetetraacetic acid (EDTA) clearance
8. Adequate hepatobiliary function: bilirubin less than 25 mmol/l
9. World Health Organization (WHO) performance status of 0 or 1
10. If female and of childbearing potential, must have a negative pregnancy test prior to trial entry and agree to avoid pregnancy during the trial
11. Patients over 18 years of age (either sex) able and willing to provide written informed consent for the trial and able to comply with treatment and follow-up schedule
Participant exclusion criteria1. Serious co-morbidity precluding systemic chemotherapy
2. Unresectable primary tumour
3. Unequivocal extensive peritoneal metastases
4. History of malignant disease in the preceding five years with the exception of non-melanomatous skin cancer and in situ cervical cancer
5. Serious medical co-morbidity, e.g. uncontrolled inflammatory bowel disease, uncontrolled angina or recent (less than six months) myocardial infarction, another serious medical condition judged to compromise ability to tolerate chemotherapy and/or surgery
6. Less than 18 years of age
7. Pregnant or breast feeding
Recruitment start date01/06/2009
Recruitment end date29/07/2011

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

University College London Hospital
London
W1P 8BT
United Kingdom

Sponsor information

University College London (UK)
University/education

Gower Street
London
WC1E 6BT
England
United Kingdom

Website http://www.ctc.ucl.ac.uk
ROR logo "ROR" https://ror.org/02jx3x895

Funders

Funder type

Charity

Cancer Research UK (CRUK) (UK) (ref: C32436/A10431)
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 date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Editorial Notes

19/03/2020: EudraCT number added.
10/05/2019: No publications found. Verifying results with principal investigator.
07/06/2017: No publications found in PubMed, verifying study status with principal investigator.
12/12/2011: The overall trial end date was changed from 31/05/2013 to 31/07/2013.
11/02/2009: This record was updated to include amended trial dates. The initial trial dates at the time of registration were:
Initial overall trial start date: 01/03/2009
Initial overall trial end date: 28/02/2013