Trials & Research

CATNON

Trial status: Completed

Last updated: 12 September, 2025

Protocol title

Concurrent and Adjuvant Temozolomide chemotherapy in non-1p/19q deleted anaplastic glioma. The CATNON Intergroup trial

Purpose of the study

This Phase III, randomized, open-label trial investigates the addition of temozolomide (concurrently and/or adjuvantly) to radiotherapy versus radiotherapy alone in adults with newly diagnosed non-1p/19q-deleted anaplastic glioma. Participants were assigned to four arms: RT alone; RT + concurrent temozolomide; RT + adjuvant temozolomide; or both. The primary endpoint is overall survival; secondary outcomes include progression-free survival, cognitive and neurological decline, toxicity, and quality of life. The second major objective is to identify patients most likely to benefit from this specific treatment based on molecular markers analysed on the tumour specimen previously resected which will ultimately allow the development of new treatments more specific for each patients tumour characteristics.

Intervention

Arm 1- Radiotherapy only

Arm 2 - Radiotherapy and concomitant Temozolomide chemotherapy

Arm 3 - Radiotherapy and adjuvant Temozolomide chemotherapy

Arm 4 - Radiotherapy, concomitant Temozolomide chemotherapy and adjuvant Temozolomide chemotherapy.

Study Chair

Professor Anna Nowak

Coordinating Centre

NHMRC Clinical Trials Centre
Locked Bag 77
Camperdown
NSW, 1450
Australia
Email: catnon.study@sydney.edu.au

Design

Phase III, multi-centre, randomised, open-label, parallel arms

Cancer Type

Glioma (G3)

Publications

  • Interim results from the CATNON trial (EORTC study 26053-22054) of treatment with concurrent and adjuvant temozolomide for 1p/19q non-co-deleted anaplastic glioma: a phase 3, randomised, open-label intergroup study. van den Bent, Martin J., et al https://doi.org/10.1016/S0140-6736(17)31442-3
  • Adjuvant and concurrent temozolomide for 1p/19q non-co-deleted anaplastic glioma (CATNON; EORTC study 26053-22054): second interim analysis of a randomised, open-label, phase 3 study. van den Bent, Martin J., et al. https://doi.org/10.1016/S1470-2045(21)00090-5
  • Temozolomide and Radiotherapy versus Radiotherapy Alone in Patients with Glioblastoma, IDH-wildtype: Post Hoc Analysis of the EORTC Randomized Phase III CATNON Trial. Tesileanu, C. Mircea S., et al. https://doi.org/10.1158/1078-0432.CCR-21-4283
  • PROGNOSTIC SIGNIFICANCE OF GENOME-WIDE DNA METHYLATION PROFILES WITHIN THE RANDOMISED, PHASE 3, EORTC CATNON TRIAL ON NON-1P/19Q DELETED ANAPLASTIC GLIOMA. C M S Tesileanu, M J van den Bent, M Sanson, W Wick, A A Brandes, P M Clement, S C Erridge, M A Vogelbaum, A K Nowak, J F Baurain, W P Mason, H Wheeler, O L Chinot, S Gill, M Griffin, L Rogers, W Taal, R Rudà, M Weller, C McBain, M E van Linde, T S Sabedot, Y Hoogstrate, A von Deimling, I de Heer, W F J van IJcken, R W W Brouwer, K Aldape, R B Jenkins, H J Dubbink, J M Kros, P Wesseling, K J Cheung, V Golfinopoulos, B G Baumert, T Gorlia, H Noushmehr, P J French. Neuro-Oncology. Volume 23, Issue 9, September 2021, Pages 1547–1559. Published online 29 April 2021. Article available on . https://doi.org/10.1093/neuonc/noab088
Trials & Research