The main aim of the Tessa Jowell BRAIN MATRIX - Platform Study is to more precisely determine the exact type of tumour patients have by developing the essential infrastructure to provide rapid and accurate molecular diagnosis. A large network of clinical hubs across the United Kingdom, with expertise in managing patients with brain tumours, will be developed. Once established this infrastructure will facilitate the rapid introduction of clinical trials testing targeted therapies tailored to the genetic changes of an individual's tumour.

Gliomas, a type of brain tumour, are the most common primary tumour of the central nervous system (CNS) and in 2016 there were 5250 deaths from brain tumours in the UK. However, brain tumours are a challenging disease to treat. The tumour's location within the brain and its tendency to grow into nearby brain tissue often make it very difficult to remove the tumour completely with surgery. There is also difficulty in delivering drugs in adequate amounts to the tumour due to the natural defences of the brain.

Brain tumours arise due to changes in the DNA and other molecules in cells of the brain. Different types of gliomas can have different changes and these can be used to determine a precise 'molecular diagnosis'. The ultimate goal for the Tessa Jowell BRAIN MATRIX is to learn how to use these molecular changes to more precisely determine what exact type of tumour patients have, and to identify, decide and test whether specific 'targeted' treatments could improve the survival and/or quality of life of patients with brain tumours.

Tessa Jowell BRAIN MATRIX is a programme of work, the principal purpose of which is to improve the knowledge of, and treatment for, glioma. The programme will include a Platform Study and subsequent interventional clinical trials. The Tessa Jowell BRAIN MATRIX Platform Study forms the backbone of this programme. In the Platform Study, the aim is to develop the infrastructure to provide rapid and accurate molecular diagnosis and the infrastructure to deliver clinical trials of new therapies in the future, thereby improving clinical outcomes in brain tumours.

The researchers aim to recruit 1,000 patients to the study. As gliomas occur at all ages and their specific subtype is hard to predict pre-operatively, the patient population eligible for the study is broad. A large network of clinical hubs across the UK, with expertise in managing patients with brain tumours, will be developed. Once established this infrastructure will facilitate the rapid introduction of clinical trials testing targeted therapies tailored to the genetic changes of an individual's tumour.

Eligible patients will either have had, or be about to have, surgery for their tumour. As part of this study, tumour removed during the operation will be analysed to look for specific molecular changes. As with normal standard care, the tumour will be analysed by a local pathologist. A small part will be sent for review by experts and advanced molecular analysis will be undertaken to get a detailed understanding of the DNA/molecular changes within the patient's tumour. These results will be fed back to the patient's treating doctor. It is intended that this will occur within 28 days; however, it may be longer while the study becomes fully operational.

If samples are available from a patient's previous surgery to their tumour, these may also be analysed. Similarly, if available, other relevant samples such as cerebrospinal fluid, collected as part of their care, may also be analysed. In addition, as technologies and analyses improve the understanding of brain tumours, the researchers may find important results at a later date. These will be fed back to the patient's doctor. Patients will also be asked to give a blood sample, which will also be analysed to look at the molecular features, including of their DNA. This is required to identify what 'new' changes have occurred in the patient's tumour. Following surgery, patients will continue with other treatment(s) as directed by their doctor.

Treatment generally involves radiotherapy and chemotherapy. As is standard practice, patients will be closely monitored for signs of disease progression and the effects of the treatment given. As part of this study, information on patients' treatments and disease will be collected.

Images from brain scans patients undergo, along with relevant clinical information, will also be sent to and stored by the University of Edinburgh, and where appropriate, undergo expert review by a panel of radiologists with expertise in brain tumours. If patients have further surgery, some of the tissue removed may also be analysed.

Inclusion Criteria:

• Newly diagnosed suspected WHO Grade 2-4 glioma, (as evidenced radiologically) AND suitable for a diagnostic or therapeutic surgical procedure resulting in a tumour sample matched to a blood sample.
• Patients with progression with known WHO Grade 2-4 glioma (those with available frozen tumour will be prioritised for detailed genomic analysis).
• Valid written informed consent for the study.

Exclusion Criteria:

• Primary spinal cord tumours
• Active treatment of other malignancy
• Contraindication to MRI
• Patients without standard of care imaging available

• Patients with a newly diagnosed suspected WHO Grade 2-4 glioma, (as evidenced radiologically) AND suitable for a diagnostic or therapeutic surgical procedure resulting in a frozen tumour sample matched to a blood sample.
• Patients with progression with known WHO Grade 2-4 glioma (those with available frozen tumour will be prioritised for detailed genomic analysis).

Scientifically sound proposals from appropriately qualified researchers will be considered for data sharing. Requests should be made by returning a Data Sharing Request Form to newbusiness@trials.bham.ac.uk; this captures the research requirements, statistical analysis plan, and intended publication schedule. Requests will be reviewed by the Cancer Research UK Clinical Trials Unit (CRCTU) Directors in discussion with the Chief Investigator (CI), Study Management Group (SMG) and independent Scientific Advisory Board (SAB). They will consider the scientific validity of the request, qualifications of the researchers, CI, SMG & SAB views, consent arrangements, practicality of anonymizing the requested data & contractual obligations. If supportive of the request, and where not already obtained, Sponsor consent for data transfer will be sought before notifying applicants of the outcome. It is anticipated that applicants will be notified within 3 months of receipt of the original request.

Data will be available within 1 year of study closure, if not before.

See Plan Description above.