# Children's Cancer and Leukaemia Group

Source: https://onco.cc/companies/cclg/  
OnCo record `cclg` (Company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

The UK and Ireland's professional body and trials network for children's cancer; nearly every child treated for cancer in the UK is cared for by a CCLG centre.

## Summary

Founded in 1977 as the UK Children's Cancer Study Group and renamed in 2006 after merging with the UK childhood leukaemia working party, CCLG links the 20 principal treatment centres in the UK and Ireland. It coordinates national participation in international paediatric trials (UKALL leukaemia trials, SIOP renal and brain tumour protocols, Euro Ewing), maintains the national tissue bank and registry, publishes parent and patient information, and funds research through the CCLG charity. Children treated in the UK access trials of new agents through CCLG's early-phase network and its links with COG and SIOP Europe.

## Fields

- Kind: Company
- Last checked: 2026-09-09
- Also known as: CCLG; UKCCSG; UK Children's Cancer Study Group
- Tags: cooperative-group
- HQ: Leicester
- Type: cooperative-group
- Website: https://www.cclg.org.uk

## Notes

- UKALL leukaemia trials
- National paediatric tumour bank
- Early-phase paediatric trials network
- Family information and support

## Sources

- CCLG: https://www.cclg.org.uk
- Research: https://www.cclg.org.uk/research

## Connected records

- trials: [ALL R3 (UKALLR3)](https://onco.cc/trials/ukallr3/), [Euro Ewing 2012](https://onco.cc/trials/euro-ewing-2012/), [SIOPEN HR-NBL1](https://onco.cc/trials/hr-nbl1/)
- cancers: [Acute lymphoblastic leukaemia](https://onco.cc/cancers/all-leukemia/), [Germ cell tumours of childhood and adolescence (extracranial and CNS)](https://onco.cc/cancers/paediatric-germ-cell-tumours/), [Glioma & glioblastoma](https://onco.cc/cancers/glioblastoma/), [Neuroblastoma (paediatric)](https://onco.cc/cancers/neuroblastoma/), [Paediatric low-grade glioma](https://onco.cc/cancers/paediatric-low-grade-glioma/), [Rare cancers of childhood (NCI PDQ umbrella)](https://onco.cc/cancers/rare-childhood-cancers/), [Sarcomas (soft tissue, bone, GIST)](https://onco.cc/cancers/sarcoma/)
- technologies: [MRD / molecular residual disease testing](https://onco.cc/technologies/mrd-testing/)
- companies: [Children's Oncology Group (COG)](https://onco.cc/companies/childrens-oncology-group/)
- institutions: [Cancer Research UK](https://onco.cc/institutions/cruk/), [SIOP Europe (European Society for Paediatric Oncology)](https://onco.cc/institutions/siop-europe/)
- people: [Ashley Ball-Gamble](https://onco.cc/people/ashley-ball-gamble/)

---
JSON: https://onco.cc/api/v1/entities/cclg.json