# Neoadjuvant Irradiation of Extremity Soft Tissue Sarcoma With Ions

> **NCT04946357** · NA · RECRUITING · sponsor: **University Hospital Heidelberg** · enrollment: 42 (estimated)

## Conditions studied

- Soft Tissue Sarcoma

## Interventions

- **RADIATION:** Protons
- **RADIATION:** carbon ions

## Key facts

- **NCT ID:** NCT04946357
- **Lead sponsor:** University Hospital Heidelberg
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2021-06-21
- **Primary completion:** 2028-07-01
- **Final completion:** 2029-07-01
- **Target enrollment:** 42 (ESTIMATED)
- **Last updated:** 2026-04-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04946357

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04946357, "Neoadjuvant Irradiation of Extremity Soft Tissue Sarcoma With Ions". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT04946357. Licensed CC0.

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