CLOCS-2

CLOCS-2 recruitment will open soon!

Please stay tuned

Patients diagnosed with certain cancers including:

Bladder
Colorectal (bowel)
Endometrial
Liver
Oesophageal
Ovarian
Pancreatic
Stomach
Uterine
Vulval
often report experiencing vague symptoms that they treat with over-the-counter medication, to manage their symptoms before seeing a health care professional. Using information on what products participants purchase and how often could help identify these cancers earlier

The primary goal of this study is to investigate whether or not people have distinctive self-management behaviours prior to seeing their doctor with symptoms that are associated with the various forms of cancer mentioned above.

Method

We will compare up to 6 years of shopping history of

1450 patients with cancer (cases)- we will aim to recruit 250 cases for each of the following cancer types: colorectal (bowel), oesophageal, ovarian and pancreatic. For each of the other six cancers, we will aim to recruit 75 cases per cancer type.

and

1450 participants without cancer (controls)

using the information collected on the loyalty cards of the two UK based high street retailers:

Boots
Tesco

what it involves

We would like you to complete and submit our secured and confidential

Informed study and access to your loyalty card data consent
Identity verification documents (proof of ID and address) to satisfy the retailers privacy policies
A questionnaire regarding your health (patients with a cancer diagnosis will have questions about their cancer diagnosis)

Note: you can complete the questionnaire in one go or you can click 'save and return' at the bottom of every page.

Eligibility

People living in the UK
18 years of age and older
diagnosed up to 2 years prior with any of the mentioned cancers (cases)
who have not been diagnosed with any of the cancers mentioned (controls)
have at least one loyalty card from Boots and/or Tesco.

Note: You don't have to be a frequent user or could be buying for everyone else in your household. Matching patients and healthy volunteers will account for similarities and differences.

Cancer Loyalty Card Study Participant Information Sheet

Will be available soon

Notice

CLOCS-2 recruitment will open soon!

Patients diagnosed with certain cancers including:

often report experiencing vague symptoms that they treat with over-the-counter medication, to manage their symptoms before seeing a health care professional. Using information on what products participants purchase and how often could help identify these cancers earlier

The primary goal of this study is to investigate whether or not people have distinctive self-management behaviours prior to seeing their doctor with symptoms that are associated with the various forms of cancer mentioned above.

We will compare up to 6 years of shopping history of

1450 patients with cancer (cases)- we will aim to recruit 250 cases for each of the following cancer types: colorectal (bowel), oesophageal, ovarian and pancreatic. For each of the other six cancers, we will aim to recruit 75 cases per cancer type.

and

1450 participants without cancer (controls)

using the information collected on the loyalty cards of the two UK based high street retailers:

We would like you to complete and submit our secured and confidential

Informed study and access to your loyalty card data consent

Identity verification documents (proof of ID and address) to satisfy the retailers privacy policies

A questionnaire regarding your health (patients with a cancer diagnosis will have questions about their cancer diagnosis)

People living in the UK

18 years of age and older

diagnosed up to 2 years prior with any of the mentioned cancers (cases)

who have not been diagnosed with any of the cancers mentioned (controls)

have at least one loyalty card from Boots and/or Tesco.

Cancer Loyalty Card Study Participant Information Sheet