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Study identifier: NCT05770102 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

DETERMINE Trial Treatment Arm 02: Atezolizumab in Adult, Paediatric and Teenage/Young Adult Patients With Cancers With High Tumour Mutational Burden (TMB) or Microsatellite Instability-high (MSI-high) or Proven Constitutional Mismatch Repair Deficiency (CMMRD) Disposition

Condition: Malignancy · Malignant Neoplasm · Lymphoproliferative Disorders  ·  Sponsor: Cancer Research UK

PhasePhase 2/Phase 3
Planned participants30
Who can joinAll sexes, N/A to no upper limit
Healthy volunteersNo

About this study

This clinical trial is looking at a drug called atezolizumab. Atezolizumab is approved as standard of care treatment for adult patients with urothelial cancer, non-small cell lung cancer, extensive-stage small cell lung cancer, hepatocellular carcinoma and triple negative breast cancer. This means it has gone through clinical trials and been approved by the Medicines and Healthcare products Regulatory Agency (MHRA) in the UK. Atezolizumab works in patients with these types of cancers which have certain changes in the cancer cells called high tumour mutational burden (TMB) or high microsatellite instability (MSI) or proven (previously diagnosed) constitutional mismatch repair deficiency (CMMRD). Investigators now wish to find out if it will be useful in treating patients with other cancer types which are also TMB/MSH-high or show CMMRD. If the results are positive, the study team will work with the NHS and the Cancer Drugs Fund to see if these drugs can be routinely accessed for patients in the future. This trial is part of a trial programme called DETERMINE. The programme will also look at other anti-cancer drugs in the same way, through matching the drug to rare cancer types or ones with specific mutations.

This description comes directly from the study's public registry record.

Talk to the study team

Aida Sarmiento Castro  ·  +44 207 242 0200  ·  determine@cancer.org.uk

Always discuss trial participation with your own doctor first.

Locations (27)

Belfast City HospitalBelfast, United KingdomNot Yet Recruiting
University Hospital BirminghamBirmingham, United KingdomRecruiting
Birmingham Children's HospitalBirmingham, United KingdomNot Yet Recruiting
Bristol Royal Hospital for ChildrenBristol, United KingdomRecruiting
Bristol Haematology and Oncology CentreBristol, United KingdomRecruiting
Addenbrooke's HospitalCambridge, United KingdomRecruiting
Velindre Cancer CentreCardiff, United KingdomRecruiting
Cardiff Children's HospitalCardiff, United KingdomNot Yet Recruiting
Western General HospitalEdinburgh, United KingdomRecruiting
The Beatson HospitalGlasgow, United KingdomRecruiting
Royal Hospital for Children GlasgowGlasgow, United KingdomRecruiting
Leicester Royal InfirmaryLeicester, United KingdomRecruiting

+ 15 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05770102