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Treatment Related CancerNCT05185388

Socioeconomic Inequalities in the Diagnosis and Treatment of Colon and Ovarian Cancer in England Between 2016-2017

An observational study of Treatment Related Cancer and Diagnoses Disease, run by University of Hull at 1 site in United Kingdom.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

This study is a population-based, patient-level analysis of colon and ovarian cancer diagnoses in England over a 2-year period using a dataset created by linking NCRAS and NHS digital datasets. Read more about this study

Who is it for?
Ages 18 to 99 years
How many people
45,831 participants
Where
1 siteUnited Kingdom
Study dates
25 Oct 2021to Dec 2027
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: All patients with colon and ovarian cancer diagnosed between 01/01/2016 and 31/12/2017 in England will be considered for inclusion in the study, according to specific inclusion and exclusion criteria.

Who may be able to join

  • All patients resident in England and aged 18-99 diagnosed with colon cancer (ICD10 C18) or ovarian cancer (ICD10 C48, C56, C57 and D39,1) where the date of diagnosis is between 01/01/2016 and 31/12/2017.

Who cannot join

  • Patients with cancers of the appendix (C18.1) will be excluded.
  • Male patients with ovarian cancer.
  • Borderline ovarian tumours (ICD-10 site code of C56x, C57x or C48x where the morphology code is: 8442, 8444, 8451, 8463, 8473, 8472 or 8462) and (ICD-10 site code D39.1 where the morphology code is 8144, 8260, 8313, 8380, 8381, 8440, 8441, 8460, 8470, 8480, 8481, 9000, 9013, 9014 or 9015).
  • Sarcomas are excluded (where the morphology code is: 8693, 8800-8806, 8963, 8990-8991, 9040-9044, 8810, 8811-8921, 9120-9373, 9490, 9500, 9530-9582).
  • Patients diagnosed with any prior invasive primary malignancies (ICD10 C00-97x), where the date of diagnosis of such prior invasive malignancies precedes the diagnosis date of the first qualifying tumour. Patients with a synchronous diagnosis on the same day as their qualifying tumour will be included within the sample population.
  • Incomplete registrations excluded.

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • Hull York Medical School

    Hull, Humberside, HU6 7TS

Other trials in United Kingdom

About this study

Official title: Socioeconomic Inequalities in the Diagnosis and Treatment of Colon and Ovarian Cancer in England Between 2016-2017: A Data Linkage Study Linking National Cancer Registration and Analysis Service, Hospital Episode Statistics and NHS Digital Datasets

This study is a population-based, patient-level analysis of colon and ovarian cancer diagnoses in England over a 2-year period using a dataset created by linking NCRAS and NHS digital datasets. Our analyses will look into inequalities in the diagnostic and treatment pathway, and inequalities in treatment received, for those diagnosed with colon and ovarian cancer between 2016-2017.

Read the detailed description

Colon and ovarian cancer survival in England lags behind other comparable countries. There is also evidence of a deprivation gradient in survival in England, where those from the most deprived areas are more likely to experience a worse survival with the disease.

Inequalities in the diagnostic and treatment pathways, and in treatments received, may contribute to this deprivation gap in survival. This study will look at the secondary care diagnostic interval and the treatment interval to assess for any socioeconomic inequalities in both these intervals. This study will also look at anticancer treatments received (surgery, chemotherapy and the combination of both treatment modalities) to evaluate for any socioeconomic inequalities in treatments received.

Important variables will be adjusted for in statistical modelling, including age, co-morbidities, ethnicity and stage of disease

To evaluate for inequalities in treatments received and diagnostic and treatment intervals the study will use data from the cancer registry, Systemic Anticancer Therapy (SACT), Hospital Episodes Statistics, Diagnostic Imaging Dataset and Cancer Waiting Times datasets. These datasets will be linked by the National Cancer Registration and Analysis Service, using a unique identifier. We will receive a pseudo-anonymised dataset, allowing for patient-level analyses but without identifying individual patients.

Keywords
Socioeconomic Inequalities
Medical subject headings
Neoplasms, Second Primary, Coitus

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Inequalities in time to diagnosis and/or treatment

    Any differences in time to diagnosis or treatment of colon or ovarian cancer, adjusting for important factors

    Measured: January 2016 - December 2017

  2. Inequalities in treatments received

    Any differences in treatments received for colon or ovarian cancer, adjusting for important factors

    Measured: January 2016 - December 2017

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Jan 2022
  2. Study start25 Oct 2021
  3. Primary completionNov 2027 (estimated)
  4. Study completionDec 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
45,831 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05185388
Sponsor's protocol ID
RS154-ODR-BPS
Status last verified
May 2026
First submitted
22 Dec 2021
Last updated
11 May 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Pickwell-Smith BA, Paton LW, Soyiri I, Lind M, Macleod U. Are there inequalities in colon cancer diagnosis and treatment in England? A population-based study. Cancer Epidemiol. 2026 Sep 12;105:103230. doi: 10.1016/j.canep.2026.103230. Online ahead of print.

    PubMed 42731437
  • Pickwell-Smith BA, Paton LW, Soyiri I, Lind M, Macleod U. Are there inequalities in ovarian cancer diagnosis and treatment in England? A population-based study. Cancer Epidemiol. 2025 Jun;96:102778. doi: 10.1016/j.canep.2025.102778. Epub 2025 Mar 8.

    PubMed 40058114

Questions about this trial

What is this clinical trial studying?

An observational study of Treatment Related Cancer and Diagnoses Disease, run by University of Hull at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 11 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Inequalities in time to diagnosis and/or treatment (time frame: January 2016 - December 2017). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05185388, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 May 2026.

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