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Developing genetic tests to diagnose, monitor and guide treatment decisions for children and young people whose cancer has returned

Stratified Medicine Paediatrics 2

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ISRCTN
Registry ID
ISRCTN14503847
Enrollment
400
Registered
2025-03-28
Start date
2025-04-14
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Relapsed/refractory solid tumours (including lymphomas) or leukaemia Cancer

Interventions

StratMedPaeds2 is a prospective cohort molecular profiling study that will generate highly annotated clinical and molecular data to highlight novel and potentially druggable dependencies enriched at t

Sponsors

Institute of Cancer Research
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age 0-21 years (patients > 21yo where primary cancer is classified as a “paediatric specific malignancy”) 2. Patients with relapsed/refractory paediatric solid & CNS tumours, Leukaemia and Lymphoma. Note: refractory leukaemia will only be eligible where no standard 2nd line treatment is available. Contact the leukaemia lead prior to registration 3. For solid tumours: Patient has a Formalin fixed paraffin embedded (FFPE) tumour (mandatory) and fresh frozen tumour (if available) from a biopsy, resection or other surgical procedure that was taken within 8 weeks prior to study entry (as part of NHS SoC). Fresh frozen tumour tissue is highly encouraged*1. 4. For leukaemia –Viable fresh or frozen Bone Marrow aspirate sample taken at a prior assessment within 8 weeks prior to study entry*2 (taken as part of NHS SoC) For BM and combined relapses where bone marrow is unavailable, a peripheral blood sample can be provided if circulating blasts are confirmed on morphology or flow cytometry. 5. For isolated CNS/Combined relapses where bone marrow is unavailable or BM is uninvolved with leukaemia, a CSF sample should be provided (taken as part of NHS SoC). 6. Written informed consent of patient/parent/guardian *1. To allow full multi-omic analysis both fresh frozen and Formalin fixed paraffin embedded (FFPE) tumour plus a blood sample for constitutional (germline) and circulating tumour (ct) DNA will need to be available. Original diagnostic slides should be submitted at the same time as block from current relapse/refractory episode either in the same shipment (see laboratory manual for further details). For CNS tumours only: blood and CSF samples paired with initial SoC tumour tissue samples *2. Where available, a cerebrospinal fluid (CSF) sample in the event of an isolated or combined CNS relapse should also be provided in addition to the bone marrow aspirate.

Exclusion criteria

Exclusion criteria: Not meeting the participant inclusion criteria

Design outcomes

Primary

MeasureTime frame
Genetic changes in the patient's relapsed/refractory cancer cells will be studied using genetic analysis in both the tumour and blood at the time of relapse and throughout their treatment journey to fulfil the following objectives: 1. The proportion of patients in whom clinically relevant genomic events are detected at the time of relapse 2. The proportion of patients in whom treatment is altered or who have a positive diagnosis as a direct result of either tissue or liquid biopsies. 3. The frequency and spectrum of events detected at the time of relapse

Secondary

MeasureTime frame
Genetic changes in the patient's relapsed/refractory cancer cells will be studied using genetic analysis in both the tumour and blood at the time of relapse and throughout their treatment journey to fulfil the following objectives: 1. Proportion of diagnoses that are refined as a result of molecular testing 2. Percentage of cases in which long-read sequencing reports a methylation classifier for diagnosis of CNS tumours and sarcoma 3. The proportion of patients on therapy who develop actionable or novel treatment resistance 4. mutations identified in serial liquid biopsy 5. Association of ctDNA levels by serial liquid biopsy during treatment with clinical and/or radiological Indicators of progression 6. The turnaround time (TAT) from receipt of sample at GOSH to discussion of results at MTB 7. The identification of events which contribute to TAT, beginning from patient consent to final reporting via the MTB

Countries

England, Northern Ireland, Scotland, United Kingdom, Wales

Contacts

Public ContactAmina Bukhari
StratMedPaeds2@trials.bham.ac.uk+44 (0)121 414 7851

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026