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Research undertaken at the University of Sheffield in 2005 to evaluate the cost-effectiveness and resource implications of potential screening programmes for colorectal cancer informed the decision to launch a national colorectal cancer screening programme in England. Upon their 60th/61st birthday, all individuals in England are now invited to participate in biennial bowel cancer screening using faecal occult blood testing (FOBT) until the age of 74. The programme identifies individuals with less advanced colorectal cancer and there is emerging evidence that it has led to an overall improvement in prognosis. Projections suggest that the programme is on course to reduce colorectal cancer deaths by 16%.
Amongst others, follow-on research includes an options appraisal of screening in Ireland that has informed national policy and a re-appraisal of colorectal screening options following publication of a pivotal trial of flexible sigmoidoscopy (FSIG) screening for NHS Cancer Screening Programmes.
Our evidence that a single flexible sigmoidoscopy (FS) dramatically reduced bowel cancer mortality and incidence, combined with evidence of high public acceptability in our pilot programme, led the Prime Minister to announce in late 2010 that once-only FS would be included in the UK National Bowel Cancer Screening Programme. The new FS screening programme started in March 2013 in six pilot centres, and is being progressively implemented nationally, with full roll-out expected by 2016. All eligible adults will be invited for screening around the time of their 55th birthday using the invitation and bowel preparation protocols developed for the trial. If uptake rates similar to those in the pilot are achieved, bowel cancer rates could be cut by a quarter, and deaths by a third, giving the UK the best colorectal cancer (CRC) outcomes in the world.
The UK Faecal Occult Blood Test Screening Programme, based on Dundee-led research (Steele), offers bowel cancer screening through mailed test kits followed up with colonoscopy when faecal blood is detected. It is estimated to prevent about 2,000 UK deaths annually. Steele's Screening Research Unit also trialled immunological faecal occult blood testing, which was subsequently incorporated into the Scottish screening algorithm. In addition to demonstrating a 27% reduction in bowel cancer deaths through participation in Faecal Occult Blood screening, the Unit has researched the incidence of interval cancers and the impact of repeated invitations, development of new tests, and strategies for increasing participation. All of these drive the National Screening Programme, and will further reduce mortality.
As a result of research at Queen Mary, an estimated 2,500-3,000 additional women per year in UK have a breast cancer detected early through two-view mammography at the NHS Breast Screening Programme, and similar country-wide benefits have occurred abroad. From 1988 the NHS Breast Screening Programme offered women aged 50-64 three-yearly one-view mammography. In 1995, results from the UKCCCR Randomised Trial of One and Two View Mammography (led by Queen Mary researchers) showed that including a second view increased breast cancer detection by 24% and reduced recall rate by 15%. On the basis of this evidence, the Department of Health immediately issued an Executive Letter requiring all breast screening units to move to two-view mammography for the prevalent screen. Changes were rapidly and widely implemented. By 2004, two-view mammography had become the policy at all screens, prevalent and incident. Two-view mammography remains national policy and its benefits continue to the present day.
Essex contributed to the independent evaluation of the UK NHS Bowel Cancer Screening Pilot programme by conducting the psychosocial aspects of this research. The evaluation recommended full roll-out, and was used to inform the programme's subsequent development and implementation. Nationwide screening for 60-69 year olds, using the Faecal Occult Blood test, began in 2006 and in 2010 the programme was extended to include adults up to their 75th birthday. Since July 2006 over 17 million screening episodes have been completed and 15,000 cancers detected. It is estimated that the programme is on track to cut deaths by 16%.
Professor Peter Sasieni's team at Queen Mary showed that the efficacy of cervical screening was age-dependent. Their recommendations were adopted as policy in England in 2003 and led many other countries, including the USA, to raise the recommended age of first screening. This research was central to the 2009 re-evaluation of the most appropriate age for first screening in England, resulting in some 300,000 fewer screening tests per year in women aged 20-24, with a cost saving to the NHS of some £15 million annually. Annually, 45,000 fewer women now have an abnormal cervical screening test, of which an estimated 8,500 would have received unnecessary surgical treatment. The estimated annual saving to the NHS is £17.5 million.
Research undertaken by Professor Atkin has identified a feasible, acceptable and cost-effective method of reducing colorectal cancer incidence and mortality rates, which involves a once-only flexible sigmoidoscopy screening for all men and women at around age 60. The supporting research involved publishing the evidence, developing a fail-safe, efficient, patient-friendly delivery system, developing a surveillance strategy following adenoma-removal, and testing in multicentre randomised trials. After 11 years, incidence and mortality rates were reduced profoundly in the trials, with no observed attenuation of effect. The entire screening strategy was rolled out in a national programme from 2013, with complete population coverage expected by 2016.
Research directed by Professor John Robertson at The University of Nottingham led to the launch, in 2009, of the world's first autoantibody blood test for the detection of early-stage lung cancer. The EarlyCDT-Lung test has been commercialised through the spin-out company Oncimmune. [text removed for publication]. EarlyCDT-Lung is now used clinically in North and South America, the UK and the Middle East, generating revenue and saving lives.
UCL has conducted a series of national lung cancer trials, which have led to wide-scale changes in clinical practice. Two trials compared different platinum based therapies, which led to centres switching from using chemotherapy with cisplatin to carboplatin-based chemotherapy instead. Carboplatin can be given as an outpatient, and has fewer side effects, and has been (and still is) recommended as an alternative to cisplatin in the UK and US.
Thousands of people across the world with a genetic predisposition (HNPCC) to bowel cancer, together with the population at large, have benefited from research on aspirin and dietary fibre undertaken at the University of Bristol since 1993. Clinical trials involving the Bristol group show that the incidence of bowel cancer has fallen in HNPCC patients who take aspirin. Moreover, aspirin use after diagnosis of bowel cancer has reduced colorectal cancer mortality. Furthermore, a high fibre diet also lowers the risk of bowel cancer. These studies led to national public health initiatives (such as the `five-a-day' campaign) that have been instrumental in increasing public awareness of the importance of aspirin and dietary fibre in reducing the risk of bowel cancer, and in establishing international guidelines on dietary advice.