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 (DETERMINE)

November 19, 2025 updated by: Cancer Research UK

DETERMINE (Determining Extended Therapeutic Indications for Existing Drugs in Rare Molecularly Defined Indications Using a National Evaluation Platform Trial): An Umbrella-Basket Platform Trial to Evaluate the Efficacy of Targeted Therapies in Rare Adult, Paediatric and Teenage/Young Adult (TYA) Cancers With Actionable Genomic Alterations, Including Common Cancers With Rare Actionable Alterations. Treatment Arm 02: Atezolizumab in Adult, Paediatric and Teenage/Young Adult Patients With Cancers With High TMB or MSI-high or Proven CMMRD Disposition.

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

DETERMINE Treatment Arm 02 (atezolizumab) aims to evaluate the efficacy of atezolizumab in adult, paediatric and teenage/young adult (TYA) patients with rare* cancers with high TMB or high MSI or proven CMMRD disposition and in common cancers where high TMB/MSI or proven CMMRD is considered to be infrequent.

*Rare is defined generally as incidence less than 6 cases in 100,000 patients (includes paediatric and teenagers/young adult cancers) or common cancers with rare alterations.

This treatment arm has a target sample size of 30 evaluable patients. Sub-cohorts may be defined and further expanded to a target of 30 evaluable patients each.

The ultimate aim is to translate positive clinical findings to the NHS (Cancer Drugs Fund) to provide new treatment options for rare adult, paediatric and TYA cancers.

OUTLINE:

Pre-screening: The Molecular Tumour Board (MTB) makes a treatment recommendation for the participant based on molecularly-defined cohorts.

Screening: Consenting patients undergo biopsy and collection of blood samples for research purposes.

Treatment: Patients will receive atezolizumab until disease progression without clinical benefit, unacceptable adverse events (AEs) or withdrawal of consent. Patients will also undergo collection of blood samples at various intervals while receiving treatment and at EoT.

After completion of study treatment, patients are followed up every 3 months for 2 years.

THE DETERMINE TRIAL MASTER (SCREENING) PROTOCOL:

Please see DETERMINE Trial Master (Screening) Protocol record (NCT05722886) for information on the DETERMINE Trial Master Protocol and applicable documents.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United Kingdom
      • Belfast, United Kingdom, BT9 7AB
        • Not yet recruiting
        • Belfast City Hospital
        • Contact:
        • Principal Investigator:
          • Vicky Coyle, Prof
      • Birmingham, United Kingdom
        • Not yet recruiting
        • Birmingham Children's Hospital
        • Contact:
        • Principal Investigator:
          • Gerard Millen, Dr
      • Birmingham, United Kingdom, B15 2TT
        • Recruiting
        • University Hospital Birmingham
        • Contact:
        • Principal Investigator:
          • Gary Middleton, Prof
      • Bristol, United Kingdom, BS2 8ED
        • Recruiting
        • Bristol Haematology and Oncology Centre
        • Contact:
        • Principal Investigator:
          • Antony Ng, Dr
      • Bristol, United Kingdom, BS2 8BJ
        • Recruiting
        • Bristol Royal Hospital for Children
        • Contact:
        • Principal Investigator:
          • Antony Ng, Dr
      • Cambridge, United Kingdom, CB2 OQQ
        • Recruiting
        • Addenbrooke's Hospital
        • Contact:
        • Principal Investigator:
          • Bristi Basu, Dr
      • Cardiff, United Kingdom, CF14 2TL
        • Recruiting
        • Velindre Cancer Centre
        • Contact:
        • Principal Investigator:
          • Robert Jones, Dr
      • Cardiff, United Kingdom, CF14 4XW
        • Not yet recruiting
        • Cardiff Children's Hospital
        • Contact:
        • Principal Investigator:
          • Madeline Adams, Dr
      • Edinburgh, United Kingdom, EH4 2XU
        • Recruiting
        • Western General Hospital
        • Contact:
          • Stefan Symeonides, Dr
        • Principal Investigator:
          • Stefan Symeonides, Dr
      • Glasgow, United Kingdom, G12 OYN
        • Recruiting
        • The Beatson Hospital
        • Contact:
        • Principal Investigator:
          • Patricia Roxburgh, Dr
      • Glasgow, United Kingdom, G51 4TF
        • Recruiting
        • Royal Hospital for Children Glasgow
        • Contact:
        • Principal Investigator:
          • Milind Ronghe, Dr
      • Leicester, United Kingdom, LE1 5WW
        • Recruiting
        • Leicester Royal Infirmary
        • Contact:
        • Principal Investigator:
          • Olubukola Ayodele, Dr
      • Liverpool, United Kingdom, L14 5AB
        • Recruiting
        • Alder Hey Hospital
        • Contact:
        • Principal Investigator:
          • Lisa Howell, Dr
      • London, United Kingdom, WC1N 3JH
        • Recruiting
        • Great Ormond Street Hospital
        • Contact:
        • Principal Investigator:
          • Darren Hargrave, Dr
      • London, United Kingdom, NW1 2BU
        • Recruiting
        • University College London Hospital
        • Contact:
        • Principal Investigator:
          • Martin Forster, Prof
      • London, United Kingdom, SE1 9RT
        • Recruiting
        • Guy's Hospital
        • Contact:
        • Principal Investigator:
          • James Spicer, Dr
      • Manchester, United Kingdom, M13 9WL
        • Not yet recruiting
        • Royal Manchester Children's Hospital
        • Contact:
        • Principal Investigator:
          • Guy Makin, Dr
      • Manchester, United Kingdom, M20 4BX
        • Recruiting
        • The Christie Hospital
        • Contact:
        • Principal Investigator:
          • Matthew Krebs, Dr
      • Metropolitan Borough of Wirral, United Kingdom, CH63 4JY
        • Recruiting
        • Clatterbridge Cancer Centre
        • Contact:
        • Principal Investigator:
          • Dan Palmer, Dr
      • Newcastle, United Kingdom, NE7 7DN
        • Recruiting
        • Freeman Hospital
        • Principal Investigator:
          • Alastair Greystoke, Dr
        • Contact:
      • Newcastle, United Kingdom, NE1 4LP
        • Recruiting
        • Great North Children's Hospital
        • Contact:
        • Principal Investigator:
          • Alastair Greystoke, Dr
      • Oxford, United Kingdom, OX3 7LE
        • Recruiting
        • Churchill Hospital
        • Contact:
        • Principal Investigator:
          • Sarah Pratap, Dr
      • Oxford, United Kingdom, OX3 9DU
        • Recruiting
        • John Radcliffe Hospital
        • Contact:
        • Principal Investigator:
          • Sarah Pratap, Dr
      • Sheffield, United Kingdom, S10 2SJ
        • Recruiting
        • Weston Park Hospital
        • Contact:
        • Principal Investigator:
          • Sarah Danson, Dr
      • Sheffield, United Kingdom, S10 2TH
        • Recruiting
        • Sheffield's Children's Hospital
        • Contact:
        • Principal Investigator:
          • Daniel Yeomanson, Dr
      • Southampton, United Kingdom, SO16 6YD
        • Recruiting
        • Southampton General Hospital
        • Contact:
        • Principal Investigator:
          • Juliet Gray, Prof
      • Sutton, United Kingdom, SM2 5PT
        • Recruiting
        • The Royal Marsden Hospital
        • Contact:
        • Principal Investigator:
          • Lynley Marshall, Dr

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

THE PATIENT MUST FULFIL THE ELIGIBILITY CRITERIA WITHIN THE DETERMINE MASTER PROTOCOL (NCT05722886) AND WITHIN THE TREATMENT ARM 02 (ATEZOLIZUMAB) OUTLINED BELOW*

*When atezolizumab-specific inclusion/exclusion criteria or precautions below differ from those specified in the Master Protocol, the atezolizumab-specific criteria will take precedence.

Inclusion Criteria:

A. Confirmed diagnosis of a malignancy that is high TMB (defined as ≥10 mut/Mb), MSI-high or of proven (previously diagnosed) CMMRD disposition using an analytically validated next-generation sequencing method. Patient cases with TMB between 10-15 mut/Mb may be discussed in an MTB meeting. TMB ≥19 mut/Mb will be fast-tracked for an MTB recommendation, unless there are any patient-specific individualities (such as multiple gene amplifications) that require MTB discussion.

B. Women of childbearing potential are eligible provide they meet the following criteria:

  • Have a negative serum or urine pregnancy test before enrolment and;
  • Agree to use one form of effective birth control method such as:

I. combined (oestrogen and progestogen containing) hormonal contraception associated with inhibition of ovulation ([oral, intravaginal or transdermal]);

II. progestogen-only hormonal contraception associated with or without inhibition of ovulation (oral, injectable or implantable);

III. intrauterine device (IUD),

IV. intrauterine hormone-releasing system (IUS),

V. bilateral tubal occlusion,

VI. vasectomised partner,

VII. sexual abstinence,

VIII. male or female condom with or without spermicide;

IX. cap, diaphragm or sponge with spermicide.

Effective from the first administration of atezolizumab, throughout the trial and for five months after the last administration of atezolizumab.

C. Male patients with partners who are women of childbearing potential are eligible provided that they agree to the following, from the first administration of atezolizumab, throughout the trial until the last administration of atezolizumab:

  • Agree to take measures not to father children by using a barrier method of contraception (condom plus spermicide) or sexual abstinence.
  • Non-vasectomised male patients with partners who are women of childbearing potential must also be willing to ensure that their partner uses an effective method of contraception.
  • Male patients with pregnant or lactating partners must be advised to use barrier method contraception (e.g. condom) to prevent drug exposure of the foetus or neonate.

All male patients must refrain from donating sperm for the same period.

D. Patients must be able and willing to undergo a fresh tissue biopsy at baseline and blood samples for translational research. Note that for patients with haematological malignancies or neuroblastomas, blood, bone marrow aspiration and/or trephine or lymph node biopsy samples may be taken.

E. ADULT PATIENTS (≥18 years): Adequate organ function as per haematological and biochemical indices within the ranges defined in the protocol. These measurements should be performed to confirm the patient's eligibility.

F. PAEDIATRIC PATIENTS (<18 years): Adequate organ function as per haematological and biochemical indices within the ranges defined in the protocol. These measurements should be performed to confirm the patient's eligibility.

G. Patients must have stable thyroid function tests. Patients on stable doses of thyroxine replacement are permitted.

Exclusion Criteria:

A. Diagnosis of urothelial cancer, non-small cell lung cancer, extensive-stage small cell lung cancer, hepatocellular carcinoma or triple negative breast cancer.

B. Patients with rapidly progressing or symptomatically deteriorating brain metastases and/or leptomeningeal disease. Patients with previously treated brain metastases are eligible, provided the patient has not experienced a seizure or had a clinically significant change in neurological status within 14 days (for adult patients) or 7 days (for paediatric patients) prior to the start of IMP administration. Such patients must be non-dependent on steroids or on a stable or reducing dose of steroid treatment for at least 14 days (or 7 days for paediatric patients) prior to the start of IMP administration. Primary brain or central nervous system (CNS) malignancies are allowed providing the patient is clinically stable (if requiring corticosteroids must be at stable or decreasing doses for at least 14 days for adults and 7 days for paediatric patients prior to the start of IMP administration). Patients who have received brain irradiation must have completed whole-brain radiotherapy and/or stereotactic radiosurgery at least 14 days prior to the start of IMP administration.

• Paediatric patients with either primary brain tumours or extracranial solid tumours with intracranial metastases with one or more intracranial lesions should only be considered for inclusion if largest intracranial lesion is ≤6 cm in longest axis. Consideration should also be given to the intracranial location of the tumour and potential risk should swelling occur. This is because of the class risk of immune checkpoint inhibitors such as atezolizumab causing immune-mediated inflammatory response and 'tumour flare' which may result in acute neurological deterioration.

C. Female patients who are pregnant, breastfeeding or planning to become pregnant during the trial or within five months following their last dose of atezolizumab.

D. History or clinical evidence of current inflammatory lung disease:

  • History of idiopathic pulmonary fibrosis, organising pneumonia (e.g. bronchiolitis obliterans), drug-induced pneumonitis, or idiopathic pneumonitis.
  • Evidence of active pneumonitis on screening chest computed tomography (CT) scan.

E. Active autoimmune disease that requires the use of systemic immunomodulatory therapy (i.e. with disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy for hypothyroidism and adrenal or pituitary insufficiency is acceptable.

F. Ongoing lung pathologies which, in the opinion of the Investigator present a compromise to safety (e.g. active tuberculosis).

G. Systemic immunomodulatory agents within 14 days prior to trial entry (immunostimulatory agents within four weeks). Exceptions to this are:

  • Patients who received acute, low dose systemic immunosuppressant medication or a one-time pulse dose of systemic immunosuppressant medication (e.g. 48 hours of corticosteroids for a contrast allergy) are eligible for the trial.
  • Patients who received corticosteroids for chronic obstructive pulmonary disease (COPD) or asthma equivalent to ≤10 mg prednisolone a day or asthma, or low-dose corticosteroids for orthostatic hypotension or adrenal insufficiency are eligible for the trial.
  • Patients with primary CNS disease can be receiving concurrent treatment with corticosteroids. Patients must be receiving a stable or decreasing dose for ≥14 days for adults and ≥7 days for paediatric patients prior to the screening magnetic resonance imaging (MRI) scan and at the time of drug initiation.
  • Patients who receive physiological doses of steroid replacement (e.g. hydrocortisone) are permitted.

H. Known to be serologically positive (as detected by polymerase chain reaction) for hepatitis B, hepatitis C or human immunodeficiency virus (HIV).

I. History of severe allergic anaphylactic reactions to chimeric, human or humanised antibodies, or fusion proteins including other immune checkpoint inhibitors.

J. Known hypersensitivity to Chinese hamster ovary cell products.

K. Known hypersensitivity to atezolizumab or any of the excipients.

L. Patients who were administered a live, attenuated vaccine within 28 days prior to enrolment, or anticipation of need for such a vaccine during atezolizumab treatment or within six months after the final dose of atezolizumab.

M. Patients with clinically significant pre-existing cardiac conditions, including uncontrolled or symptomatic angina, uncontrolled atrial or ventricular arrhythmias, or NYHA class III or IV congestive heart failure.

Patients with a cerebrovascular event (including stroke or transient ischaemic attacks [TIA]) or cardiovascular event (including acute myocardial infarction [MI]) within three months before the first dose of atezolizumab.

• Patients with primary CNS tumours may be considered unless intra-tumoural bleeding has occurred within 2 weeks of the first dose of atezolizumab, and patients with punctate CNS haemorrhages <3 mm may be considered.

Patients with a prior history of pericardial disorders, including pericarditis, pericardial effusion and cardiac tamponade.

N. Prior allogeneic stem cell or solid organ transplantation on immunosuppression.

O. Prior treatment with the same class of drug unless genetic profile demonstrates a mechanism of resistance known to be potentially sensitive to atezolizumab.

P. Uncontrolled diabetes.

Q. Any clinically significant concomitant disease or condition (or its treatment) that could interfere with the conduct of the trial or absorption of oral medications or that would, in the opinion of the Investigator, pose an unacceptable risk to the patient in this trial.

R. Severe infection within four weeks prior to the first IMP administration or the administration of antibiotics within two weeks prior to the first IMP administration, with the exemption of patients requiring prophylaxis.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment Arm 02: Atezolizumab
This atezolizumab treatment arm is for adult, paediatric and TYA patients with cancers with high TMB or high MSI or proven (previously diagnosed) CMMRD.
Drug: Atezolizumab

Adult patients will receive 1200 mg of atezolizumab intravenously every 21 days.

Paediatric patients will receive atezolizumab at a dose of 15 mg/kg (maximum 1200 mg) every 21 days.

Patients may continue on treatment until disease progression without clinical benefit, unacceptable AEs or withdrawal of consent.

Other Names:
  • Tecentriq

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Durable Clinical Benefit (DCB)
Time Frame: Disease assessments to be performed up to 24 weeks from the start of trial treatment.
DCB is defined as the absence of disease progression for at least 24 weeks from the start of trial treatment according to RECIST Version 1.1 criteria (or ir-RECIST or standard imaging criteria for specific disease e.g. RANO criteria) and, where relevant (e.g. for haematological malignancies), by standard bone marrow response assessment criteria. Alternative definitions of DCB based on different time points may be pre-specified for particular sub-cohorts if 24 weeks is not clinically relevant. The trial will report the proportion of patients with a DCB and 95% credible interval.
Disease assessments to be performed up to 24 weeks from the start of trial treatment.
Objective Response (OR)
Time Frame: Disease assessments to be performed up to 24 weeks from the start of trial treatment.
An OR is defined as the confirmed occurrence of either a Complete Response (CR) or Partial Response (PR) according to Response Evaluation Criteria in Solid Tumours (RECIST) Version 1.1 criteria (or immune related [ir]-RECIST or standard imaging criteria for specific disease e.g. Response Evaluation in Neuro Oncology criteria [RANO]). In patients with leukaemia, OR will be defined as the occurrence of CR, CRi (CR incomplete neutrophil recovery) or CRp (CR with incomplete platelet recovery). The trial will report the proportion of patients with an OR and 95% credible interval.
Disease assessments to be performed up to 24 weeks from the start of trial treatment.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Time to treatment discontinuation (TTD)
Time Frame: From first dose of atezolizumab to discontinuation of trial treatment up to 5 years.
TTD is defined as the time from date of starting trial treatment to date of discontinuing trial treatment, in days estimated by the median of the posterior inverse gamma probability distribution. The trial will report the median TTD and 95% credible interval.
From first dose of atezolizumab to discontinuation of trial treatment up to 5 years.
Overall Survival time (OS)
Time Frame: Time of death or up to 2 years after the EoT visit.
OS is defined as the time from date of starting trial treatment to date of death from any cause estimated by the median of the posterior normal probability distribution.
Time of death or up to 2 years after the EoT visit.
EORTC-QLQ-C30 Standardised Area Under Summary Score Curve (QLQSAUC) in adult patients
Time Frame: QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).
For adult populations, multiple measures of Quality of Life (QoL) will be generated from patient completion of the European Organisation for Research and Treatment of Cancer QLQ-C30 (EORTC-QLQ-C30) questionnaire (15 measures). For each patient the Summary Score from the questionnaire will be generated at each time point and the area under the curve generated by these scores over time will be calculated and standardised by the time frame. The trial will report the mean QLQSAUC and 95% credible interval.
QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).
Duration of response (DR)
Time Frame: Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
DR is defined as the time from the date of the first confirmed CR or PR according to RECIST 1.1 or ir-RECIST or standard imaging criteria for specific disease e.g. RANO criteria to the date of disease progression. The trial will report the median DR and 95% credible interval.
Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
Best percentage change in sum of target lesion / index lesion diameters (PCSD)
Time Frame: Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
PCSD is defined as the greatest decrease or least increase in the sum of target lesion diameters (RECIST) or index lesion diameters (irRECIST) as a percentage compared to the baseline measurement. The trial will report the mean PCSD and 95% credible interval.
Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
Progression-Free Survival time (PFS)
Time Frame: Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
PFS is defined as the time from date of starting trial treatment to date of progression or date of death without a previous progression recorded estimated by the median of the posterior inverse gamma probability distribution.
Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
Time to Progression (TTP)
Time Frame: Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
TTP is defined as the time from date of starting trial treatment to date of progression or date of death without recorded progression censored rather than events. The trial will report the median TTP and 95% credible interval.
Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
Growth Modulation Index (GMI)
Time Frame: Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
GMI is defined as the ratio of TTP with the trial protocol treatment to TTP on the most recent prior line of therapy. The trial will report the mean GMI and 95% credible interval.
Disease assessment every 2 cycles of atezolizumab (each cycle is 21 days) and at EoT. After 24 weeks, it can be done every 12 weeks, on discussion with Sponsor. Follow-up visits are every 3 months after last dose of atezolizumab for up to 2 years.
Occurrence of at least one Suspected Unexpected Serious Adverse Reaction (SUSAR)
Time Frame: From the time of consent until 90 days after last dose of atezolizumab (up to 5 years) or until patient starts another anti-cancer therapy, whichever came first. An average time frame will be presented with results entry.
The trial will report the number of patients who experience at least one SUSAR to atezolizumab.
From the time of consent until 90 days after last dose of atezolizumab (up to 5 years) or until patient starts another anti-cancer therapy, whichever came first. An average time frame will be presented with results entry.
Occurrence of at least one Grade 3, 4 or 5 atezolizumab related AE
Time Frame: From the time of consent until 90 days after last dose of atezolizumab (up to 5 years) or until patient starts another anti-cancer therapy, whichever came first. An average time frame will be presented with results entry.
Number of patients who experience at least one atezolizumab related Grade 3, 4 or 5 AE according to National Cancer Institute Common Terminology Criteria for Adverse Events Version 5.0.
From the time of consent until 90 days after last dose of atezolizumab (up to 5 years) or until patient starts another anti-cancer therapy, whichever came first. An average time frame will be presented with results entry.
EQ-5D Standardised Area Under Index Value Curve (EQ5DSAUC) in adult patients.
Time Frame: QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).
For adult populations, two measures of QoL will be generated from patient completion of the EQ-5D-5L questionnaire. For each measure, scores based on responses from the questionnaire will be generated at each time point and the area under the curve generated by these scores over time will be calculated and standardised by the time frame. The trial will report the mean EQ5DSAUC and 95% credible interval.
QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).
Mean change from baseline in the PedsQL 4.0 Standardised Area Under total Scale Score Curve (PedsSAUC) in paediatric patients.
Time Frame: QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).
For paediatric populations multiple measures of QoL will be generated from patient completion of the PedsQL 4.0 (4 measures). The Summary Score from the questionnaire will be generated at each time point and the area under the curve generated by these scores over time will be calculated and standardised by the time frame. The trial will report the mean PedsSAUC and 95% credible interval.
QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).
Mean change from baseline in the PedsQL 4.0 Standardised Area Under total Scale Score Curve (PedsSAUC) in parents of paediatric patients.
Time Frame: QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).
For paediatric populations multiple measures of QoL will be generated from patient's parent completion of the PedsQL 4.0 (4 measures). The Summary Score from the questionnaire will be generated at each time point and the area under the curve generated by these scores over time will be calculated and standardised by the time frame. The trial will report the mean PedsSAUC and 95% credible interval.
QoL surveys performed prior to inclusion, every cycle (each cycle is 21 days) and at EoT visit (up to 5 years).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Cancer Research UK

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Royal Marsden NHS Foundation Trust
Hoffmann-La Roche
University of Manchester
University of Birmingham

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Matthew Krebs, Dr, The Christie Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 25, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2029

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 22, 2023

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 14, 2023

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 15, 2023

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 24, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 19, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CRUKD/21/004 - Treatment Arm 2
  • IRAS ID: 1004057 (Other Identifier: IRAS)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Individual de-identified patient data will be shared with researchers whose proposed use of the data is approved by a review committee of the Sponsor.

IPD Sharing Time Frame

All requests for data relating to this treatment arm that are made within 5 years from last patient last visit for the atezolizumab treatment arm will be considered; requests made subsequently will be considered where possible.

IPD Sharing Access Criteria

When a request has been approved, Cancer Research UK will provide access to the de-identified individual patient-level data and appropriate supporting information. A signed Data Sharing Agreement must be in place before accessing requested information. Requests should be submitted to drugdev@cancer.org.uk

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

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