# COLLISION XL: Unresectable Colorectal Liver Metastases (3-5cm): Stereotactic Body Radiotherapy vs. Microwave Ablation

> **NCT04081168** · NA · UNKNOWN · sponsor: **Amsterdam UMC, location VUmc** · enrollment: 68 (estimated)

## Conditions studied

- Colorectal Cancer Metastatic
- Liver Metastasis Colon Cancer

## Interventions

- **DEVICE:** Stereotactic Body Radiotherapy
- **DEVICE:** Microwave Ablation

## Key facts

- **NCT ID:** NCT04081168
- **Lead sponsor:** Amsterdam UMC, location VUmc
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2020-12-15
- **Primary completion:** 2024-09-15
- **Final completion:** 2025-01-15
- **Target enrollment:** 68 (ESTIMATED)
- **Last updated:** 2022-12-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04081168

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04081168, "COLLISION XL: Unresectable Colorectal Liver Metastases (3-5cm): Stereotactic Body Radiotherapy vs. Microwave Ablation". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT04081168. Licensed CC0.

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