# Observational Study for Assessing Treatment and Outcome of Patients With Primary Brain Tumours Using cIMPACT-NOW and 2021 WHO Classification

> **NCT05259605** · — · RECRUITING · sponsor: **European Organisation for Research and Treatment of Cancer - EORTC** · enrollment: 1650 (estimated)

## Conditions studied

- Glioma
- Glioneuronal Tumor
- Choroid Plexus Tumor
- Pineal Tumors
- Germ Cell Tumor
- Tumor of the Sellar Region
- Diffuse Midline Glioma, H3 K27M-Mutant
- Ependymoma
- Embryonal Tumor
- Pineal Tumor
- Hemangiopericytoma
- Hemangioblastoma
- Melanocytic Tumor of CNS

## Interventions

- **OTHER:** Observational

## Key facts

- **NCT ID:** NCT05259605
- **Lead sponsor:** European Organisation for Research and Treatment of Cancer - EORTC
- **Sponsor class:** NETWORK
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2023-03-21
- **Primary completion:** 2027-12-30
- **Final completion:** 2038-07-29
- **Target enrollment:** 1650 (ESTIMATED)
- **Last updated:** 2025-12-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05259605

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05259605, "Observational Study for Assessing Treatment and Outcome of Patients With Primary Brain Tumours Using cIMPACT-NOW and 2021 WHO Classification". Retrieved via AI Analytics 2026-08-22 from https://api.ai-analytics.org/clinical/NCT05259605. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*