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Ovarian cancer screening and mortality in the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS): a randomised controlled trial

Randomized Controlled Trial

. 2016 Mar 5;387(10022):945-956. doi: 10.1016/S0140-6736(15)01224-6. Epub 2015 Dec 17. Ovarian cancer screening and mortality in the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS): a randomised controlled trial Usha Menon  2 Andy Ryan  3 Aleksandra Gentry-Maharaj  3 Matthew Burnell  3 Jatinderpal K Kalsi  3 Nazar N Amso  4 Sophia Apostolidou  3 Elizabeth Benjamin  5 Derek Cruickshank  6 Danielle N Crump  3 Susan K Davies  3 Anne Dawnay  7 Stephen Dobbs  8 Gwendolen Fletcher  3 Jeremy Ford  9 Keith Godfrey  10 Richard Gunu  3 Mariam Habib  11 Rachel Hallett  12 Jonathan Herod  13 Howard Jenkins  14 Chloe Karpinskyj  3 Simon Leeson  15 Sara J Lewis  3 William R Liston  3 Alberto Lopes  16 Tim Mould  17 John Murdoch  18 David Oram  19 Dustin J Rabideau  20 Karina Reynolds  19 Ian Scott  14 Mourad W Seif  21 Aarti Sharma  22 Naveena Singh  23 Julie Taylor  3 Fiona Warburton  24 Martin Widschwendter  3 Karin Williamson  25 Robert Woolas  26 Lesley Fallowfield  27 Alistair J McGuire  28 Stuart Campbell  29 Mahesh Parmar  30 Steven J Skates  31

Affiliations

Affiliations

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Randomized Controlled Trial

Ovarian cancer screening and mortality in the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS): a randomised controlled trial

Ian J Jacobs et al. Lancet. 2016.

. 2016 Mar 5;387(10022):945-956. doi: 10.1016/S0140-6736(15)01224-6. Epub 2015 Dec 17. Authors Ian J Jacobs  1 Usha Menon  2 Andy Ryan  3 Aleksandra Gentry-Maharaj  3 Matthew Burnell  3 Jatinderpal K Kalsi  3 Nazar N Amso  4 Sophia Apostolidou  3 Elizabeth Benjamin  5 Derek Cruickshank  6 Danielle N Crump  3 Susan K Davies  3 Anne Dawnay  7 Stephen Dobbs  8 Gwendolen Fletcher  3 Jeremy Ford  9 Keith Godfrey  10 Richard Gunu  3 Mariam Habib  11 Rachel Hallett  12 Jonathan Herod  13 Howard Jenkins  14 Chloe Karpinskyj  3 Simon Leeson  15 Sara J Lewis  3 William R Liston  3 Alberto Lopes  16 Tim Mould  17 John Murdoch  18 David Oram  19 Dustin J Rabideau  20 Karina Reynolds  19 Ian Scott  14 Mourad W Seif  21 Aarti Sharma  22 Naveena Singh  23 Julie Taylor  3 Fiona Warburton  24 Martin Widschwendter  3 Karin Williamson  25 Robert Woolas  26 Lesley Fallowfield  27 Alistair J McGuire  28 Stuart Campbell  29 Mahesh Parmar  30 Steven J Skates  31 Affiliations

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Erratum in Abstract

Background: Ovarian cancer has a poor prognosis, with just 40% of patients surviving 5 years. We designed this trial to establish the effect of early detection by screening on ovarian cancer mortality.

Methods: In this randomised controlled trial, we recruited postmenopausal women aged 50-74 years from 13 centres in National Health Service Trusts in England, Wales, and Northern Ireland. Exclusion criteria were previous bilateral oophorectomy or ovarian malignancy, increased risk of familial ovarian cancer, and active non-ovarian malignancy. The trial management system confirmed eligibility and randomly allocated participants in blocks of 32 using computer-generated random numbers to annual multimodal screening (MMS) with serum CA125 interpreted with use of the risk of ovarian cancer algorithm, annual transvaginal ultrasound screening (USS), or no screening, in a 1:1:2 ratio. The primary outcome was death due to ovarian cancer by Dec 31, 2014, comparing MMS and USS separately with no screening, ascertained by an outcomes committee masked to randomisation group. All analyses were by modified intention to screen, excluding the small number of women we discovered after randomisation to have a bilateral oophorectomy, have ovarian cancer, or had exited the registry before recruitment. Investigators and participants were aware of screening type. This trial is registered with ClinicalTrials.gov, number NCT00058032.

Findings: Between June 1, 2001, and Oct 21, 2005, we randomly allocated 202,638 women: 50,640 (25·0%) to MMS, 50,639 (25·0%) to USS, and 101,359 (50·0%) to no screening. 202,546 (>99·9%) women were eligible for analysis: 50,624 (>99·9%) women in the MMS group, 50,623 (>99·9%) in the USS group, and 101,299 (>99·9%) in the no screening group. Screening ended on Dec 31, 2011, and included 345,570 MMS and 327,775 USS annual screening episodes. At a median follow-up of 11·1 years (IQR 10·0-12·0), we diagnosed ovarian cancer in 1282 (0·6%) women: 338 (0·7%) in the MMS group, 314 (0·6%) in the USS group, and 630 (0·6%) in the no screening group. Of these women, 148 (0·29%) women in the MMS group, 154 (0·30%) in the USS group, and 347 (0·34%) in the no screening group had died of ovarian cancer. The primary analysis using a Cox proportional hazards model gave a mortality reduction over years 0-14 of 15% (95% CI -3 to 30; p=0·10) with MMS and 11% (-7 to 27; p=0·21) with USS. The Royston-Parmar flexible parametric model showed that in the MMS group, this mortality effect was made up of 8% (-20 to 31) in years 0-7 and 23% (1-46) in years 7-14, and in the USS group, of 2% (-27 to 26) in years 0-7 and 21% (-2 to 42) in years 7-14. A prespecified analysis of death from ovarian cancer of MMS versus no screening with exclusion of prevalent cases showed significantly different death rates (p=0·021), with an overall average mortality reduction of 20% (-2 to 40) and a reduction of 8% (-27 to 43) in years 0-7 and 28% (-3 to 49) in years 7-14 in favour of MMS.

Interpretation: Although the mortality reduction was not significant in the primary analysis, we noted a significant mortality reduction with MMS when prevalent cases were excluded. We noted encouraging evidence of a mortality reduction in years 7-14, but further follow-up is needed before firm conclusions can be reached on the efficacy and cost-effectiveness of ovarian cancer screening.

Funding: Medical Research Council, Cancer Research UK, Department of Health, The Eve Appeal.

Copyright © 2016 Jacobs Menon et al. Open Access article published under the terms of CC BY. Published by Elsevier Ltd.. All rights reserved.

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Figures

Figure 1

Trial profile MMS=multimodal screening. USS=ultrasound…

Figure 1

Trial profile MMS=multimodal screening. USS=ultrasound screening. *Events occurred before recruitment, but discovered after…

Figure 1

Trial profile MMS=multimodal screening. USS=ultrasound screening. *Events occurred before recruitment, but discovered after randomisation.

Figure 2

(A) Cumulative ovarian cancer and…

Figure 2

(A) Cumulative ovarian cancer and (B) ovarian and peritoneal cancer deaths The Royston-Parmar…

Figure 2

(A) Cumulative ovarian cancer and (B) ovarian and peritoneal cancer deaths The Royston-Parmar model is shown in the appendix (p 12, 13). HR=hazard ratio. MMS=multimodal screening. USS=ultrasound screening.

Figure 3

Rates of ovarian cancer The…

Figure 3

Rates of ovarian cancer The figure including confidence limits is in the appendix…

Figure 3

Rates of ovarian cancer The figure including confidence limits is in the appendix (p 14). MMS=multimodal screening. USS=ultrasound screening.

Figure 4

(A) Cumulative ovarian cancer and…

Figure 4

(A) Cumulative ovarian cancer and (B) ovarian and peritoneal deaths in MMS and…

Figure 4

(A) Cumulative ovarian cancer and (B) ovarian and peritoneal deaths in MMS and no screening groups after exclusion of prevalent cases HRs and mortality reductions for 0–7 years and 7–14 years calculated from the Royston-Parmar model. Cumulative mortality curves from the Royston-Parmar model are overlaid onto Kaplan-Meier curves. HR=hazard ratio. MMS=multimodal screening.

Comment in Similar articles Cited by References
    1. Cancer Research UK. Ovarian cancer survival statistics. One-, five- and ten-year survival for ovarian cancer. http://www.cancerresearchuk.org/health-professional/cancer-statistics/st... (accessed Nov 3, 2015)
    1. Jacobs I, Stabile I, Bridges J, et al. Multimodal approach to screening for ovarian cancer. Lancet. 1988;1:268–271. - PubMed
    1. Jacobs IJ, Skates S, Davies AP, et al. Risk of diagnosis of ovarian cancer after raised serum CA 125 concentration: a prospective cohort study. BMJ. 1996;313:1355–1358. - PMC - PubMed
    1. Menon U, Talaat A, Jeyarajah AR, et al. Ultrasound assessment of ovarian cancer risk in postmenopausal women with CA125 elevation. Br J Cancer. 1999;80:1644–1647. - PMC - PubMed
    1. Jacobs IJ, Skates SJ, MacDonald N, et al. Screening for ovarian cancer: a pilot randomised controlled trial. Lancet. 1999;353:1207–1210. - PubMed

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