# Proton Pencil Beam Scanning GRID for Treatment of Bulky Tumors

> **NCT05121545** · NA · ACTIVE_NOT_RECRUITING · sponsor: **Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins** · enrollment: 11 (actual)

## Conditions studied

- Sarcoma
- Melanoma

## Interventions

- **RADIATION:** Pro-GRID

## Key facts

- **NCT ID:** NCT05121545
- **Lead sponsor:** Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2022-04-06
- **Primary completion:** 2024-09-24
- **Final completion:** 2026-12
- **Target enrollment:** 11 (ACTUAL)
- **Last updated:** 2026-01-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05121545

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05121545, "Proton Pencil Beam Scanning GRID for Treatment of Bulky Tumors". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT05121545. Licensed CC0.

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